Hall, E.
Hussain, S.A.
Porta, N.
Lewis, R.
Crundwell, M.
Jenkins, P.
Rawlings, C.
Tremlett, J.
Sreenivasan, T.
Wallace, J.
Syndikus, I.
Sheehan, D.
Lydon, A.
Huddart, R.
James, N.
BC2001 Investigators,
(2022). Chemoradiotherapy in Muscle-invasive Bladder Cancer: 10-yr Follow-up of the Phase 3 Randomised Controlled BC2001 Trial. ,
,
pp. S0302-2838(22)02265.
show abstract
BACKGROUND: BC2001, the largest randomised trial of bladder-sparing treatment for muscle-invasive bladder cancer (MIBC), demonstrated improvement in locoregional control by adding fluorouracil and mitomycin C to radiotherapy (James ND, Hussain SA, Hall E, et al. Radiotherapy with or without chemotherapy in muscle-invasive bladder cancer. N Engl J Med 2012;366:1477-88). There are limited data on long-term recurrence risk. OBJECTIVE: To determine whether benefit of adding chemotherapy to radiotherapy for MIBC is maintained in the long term. DESIGN, SETTING, AND PARTICIPANTS: A phase 3 randomised controlled 2 × 2 factorial trial was conducted. Between 2001 and 2008, 458 patients with T2-T4a N0M0 MIBC were enrolled; 360 were randomised to radiotherapy (178) or chemoradiotherapy (182), and 218 were randomised to standard whole-bladder radiotherapy (108) or reduced high-dose-volume radiotherapy (111). The median follow-up time was 9.9 yr. The trial is registered (ISRCTN68324339). INTERVENTION: Radiotherapy: 55 Gy in 20 fractions over 4 wk or 64 Gy in 32 fractions over 6.5 wk; concurrent chemotherapy: 5-fluorouracil and mitomycin C. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Locoregional control (primary endpoint), invasive locoregional control, toxicity, rate of salvage cystectomy, disease-free survival (DFS), metastasis-free survival (MFS), bladder cancer-specific survival (BCSS), and overall survival. Cox regression was used. The analysis of efficacy outcomes was by intention to treat. RESULTS AND LIMITATIONS: Chemoradiotherapy improved locoregional control (hazard ratio [HR] 0.61 [95% confidence interval {CI} 0.43-0.86], p = 0.004) and invasive locoregional control (HR 0.55 [95% CI 0.36-0.84], p = 0.006). This benefit translated, albeit nonsignificantly, for disease-related outcomes: DFS (HR 0.78 [95% CI 0.60-1.02], p = 0.069), MFS (HR 0.78, [95% CI 0.58-1.05], p = 0.089), overall survival (HR = 0.88 [95% CI 0.69-1.13], p = 0.3), and BCSS (HR 0.79 [95% CI 0.59-1.06], p = 0.11). The 5-yr cystectomy rate was 14% (95% CI 9-21%) with chemoradiotherapy versus 22% (95% CI 16-31%) with radiotherapy alone (HR 0.54, [95% CI 0.31-0.95], p = 0.034). No differences were seen between standard and reduced high-dose-volume radiotherapy. CONCLUSIONS: Long-term findings confirm the benefit of adding concomitant 5-fluorouracil and mitomycin C to radiotherapy for MIBC. PATIENT SUMMARY: We looked at long-term outcomes of a phase 3 clinical trial testing radiotherapy with or without chemotherapy for patients with invasive bladder cancer. We concluded that the benefit of adding chemotherapy to radiotherapy was maintained over 10 yr..
Bundred, N.
Porta, N.
Brunt, A.M.
Cramer, A.
Hanby, A.
Shaaban, A.M.
Rakha, E.A.
Armstrong, A.
Cutress, R.I.
Dodwell, D.
Emson, M.A.
Evans, A.
Hartup, S.M.
Horgan, K.
Miller, S.E.
McIntosh, S.A.
Morden, J.P.
Naik, J.
Narayanan, S.
Ooi, J.
Skene, A.I.
Cameron, D.A.
Bliss, J.M.
(2022). Combined Perioperative Lapatinib and Trastuzumab in Early HER2-Positive Breast Cancer Identifies Early Responders: Randomized UK EPHOS-B Trial Long-Term Results. Clinical cancer research : an official journal of the american association for cancer research,
.
show abstract
Background
EPHOS-B aimed to determine whether perioperative anti-HER2 therapy inhibited proliferation and/or increased apoptosis in HER2-positive breast cancer.
Patients and methods
This randomized phase II, two-part, multicenter trial included newly diagnosed women with HER2-positive invasive breast cancer due to undergo surgery. Patients were randomized to: part 1 (1:2:2), no treatment (control), trastuzumab or lapatinib; part 2 (1:1:2) control, trastuzumab, or lapatinib and trastuzumab combination. Treatment was given for 11 days presurgery. Coprimary endpoints were change in Ki67 and apoptosis between baseline and surgery tumor samples (biologic response: ≥30% change). Central pathology review scored residual cancer burden (RCB). Relapse-free survival (RFS) explored long-term effects.
Results
Between November 2010 and September 2015, 257 patients were randomized (part 1: control 22, trastuzumab 57, lapatinib 51; part 2: control 29, trastuzumab 32, combination 66). Ki67 response was evaluable for 223 patients: in part 1 Ki67 response occurred in 29/44 (66%) lapatinib versus 18/49 (37%) trastuzumab (
P = 0.007) and 1/22 (5%) control (
P < 0.0001); in part 2 in 36/49 (74%) combination versus 14/31 (45%) trastuzumab (
P = 0.02) and 2/28 (7%) control (
P < 0.0001). No significant increase in apoptosis after 11 days was seen in treatment groups. Six patients achieved complete pathologic response (pCR, RCB0) and 13 RCB1, all but two in the combination group. After 6 years median follow-up, 28 (11%) had recurrence and 19 (7%) died. No recurrences or deaths were observed among patients who achieved a pCR. Ki67% falls ≥50% associated with fewer recurrences (
P = 0.002).
Conclusions
Early response after short duration anti-HER2 dual therapy identifies cancers dependent on the HER2 pathway providing a strategy for exploring risk-adapted individualized treatment de-escalation..
Rescigno, P.
Gurel, B.
Pereira, R.
Crespo, M.
Rekowski, J.
Rediti, M.
Barrero, M.
Mateo, J.
Bianchini, D.
Messina, C.
Fenor de la Maza, M.D.
Chandran, K.
Carmichael, J.
Guo, C.
Paschalis, A.
Sharp, A.
Seed, G.
Figueiredo, I.
Lambros, M.
Miranda, S.
Ferreira, A.
Bertan, C.
Riisnaes, R.
Porta, N.
Yuan, W.
Carreira, S.
de Bono, J.S.
(2021). Characterizing CDK12-Mutated Prostate Cancers. Clinical cancer research : an official journal of the american association for cancer research,
Vol.27
(2),
pp. 566-574.
show abstract
Purpose Cyclin-dependent kinase 12 (CDK12) aberrations have been reported as a biomarker of response to immunotherapy for metastatic castration-resistant prostate cancer (mCRPC). Herein, we characterize CDK12-mutated mCRPC, presenting clinical, genomic, and tumor-infiltrating lymphocyte (TIL) data.Experimental design Patients with mCRPC consented to the molecular analyses of diagnostic and mCRPC biopsies. Genomic analyses involved targeted next-generation (MiSeq; Illumina) and exome sequencing (NovaSeq; Illumina). TILs were assessed by validated immunocytochemistry coupled with deep learning-based artificial intelligence analyses including multiplex immunofluorescence assays for CD4, CD8, and FOXP3 evaluating TIL subsets. The control group comprised a randomly selected mCRPC cohort with sequencing and clinical data available.Results Biopsies from 913 patients underwent targeted sequencing between February 2015 and October 2019. Forty-three patients (4.7%) had tumors with CDK12 alterations. CDK12-altered cancers had distinctive features, with some revealing high chromosomal break numbers in exome sequencing. Biallelic CDK12-aberrant mCRPCs had shorter overall survival from diagnosis than controls [5.1 years (95% confidence interval (CI), 4.0-7.9) vs. 6.4 years (95% CI, 5.7-7.8); hazard ratio (HR), 1.65 (95% CI, 1.07-2.53); P = 0.02]. Median intratumoral CD3 + cell density was higher in CDK12 cancers, although this was not statistically significant (203.7 vs. 86.7 cells/mm 2 ; P = 0.07). This infiltrate primarily comprised of CD4 + FOXP3 - cells (50.5 vs. 6.2 cells/mm 2 ; P < 0.0001), where high counts tended to be associated with worse survival from diagnosis (HR, 1.64; 95% CI, 0.95-2.84; P = 0.077) in the overall population.Conclusions CDK12-altered mCRPCs have worse prognosis, with these tumors surprisingly being primarily enriched for CD4 + FOXP3 - cells that seem to associate with worse outcome and may be immunosuppressive. See related commentary by Lotan and Antonarakis, p. 380 ..
Messiou, C.
Porta, N.
Sharma, B.
Levine, D.
Koh, D.-.
Boyd, K.
Pawlyn, C.
Riddell, A.
Downey, K.
Croft, J.
Morgan, V.
Stern, S.
Cheung, B.
Kyriakou, C.
Kaczmarek, P.
Winfield, J.
Blackledge, M.
Oyen, W.J.
Kaiser, M.F.
(2021). Prospective Evaluation of Whole-Body MRI versus FDG PET/CT for Lesion Detection in Participants with Myeloma. Radiology: imaging cancer,
Vol.3
(5),
pp. e210048-e210048.
Hussain, S.A.
Porta, N.
Hall, E.
Salawu, A.
Lewis, R.
Sreenivasan, T.
Wallace, J.
Crundwell, M.
Jenkins, P.
Tremlett, J.
Huddart, R.
James, N.D.
BC2001 Investigators,
(2021). Outcomes in Patients with Muscle-invasive Bladder Cancer Treated with Neoadjuvant Chemotherapy Followed by (Chemo)radiotherapy in the BC2001 Trial. European urology,
Vol.79
(2),
pp. 307-315.
show abstract
Background BC2001 demonstrated improved local control with the addition of chemotherapy to radiotherapy in 360 patients with muscle-invasive bladder cancer. Objective To establish whether such benefit remained in BC2001 patients who received prior neoadjuvant chemotherapy. Design, setting, and participants A total of 117 patients (33%) received neoadjuvant chemotherapy and were randomised to radiotherapy with (48%) or without (52%) concomitant chemotherapy. Patients were recruited between August 2001 and April 2008 from 28 UK centres. Intervention Platinum-based neoadjuvant chemotherapy, followed by radiotherapy with (cRT) or without (RT) synchronous 5-fluorouracil and mitomycin-C. Outcome measurements and statistical analysis Toxicity, locoregional control (LRC), overall survival (OS), and quality of life (QoL) were measured. Results and limitations Of the patients, 74% received gemcitabine plus cisplatin or carboplatin. Compliance rates with full-dose radiotherapy were cRT 93% and RT 92%. An excess of grade ≥3 toxicities while on (chemo)radiation occurred for cRT 33% versus RT 22%, although nonstatistically significant (p = 0.16). With 110 mo median follow-up for survival (interquartile range 96-123), cRT showed improved LRC though not statistically significant (adjusted hazard ratio [aHR] = 0.64, 95% confidence interval [CI] 0.33-1.23, p = 0.18). No differences in OS (aHR = 0.95, 95% CI 0.57-1.57, p = 0.8) were observed. No significant detriment in QoL was observed between cRT and RT in this subgroup of patients. Conclusions Neoadjuvant chemotherapy does not compromise the delivery of radical curative treatment. Although underpowered due to a small sample size, the benefit of chemoradiotherapy to improve local control in this group of patients receiving neoadjuvant chemotherapy is consistent with that observed in the main trial. Although a nonsignificant excess of toxicity was observed, there was no evidence of impaired QoL. Patient summary Chemotherapy before radical chemo(radiotherapy) is feasible and well tolerated..
Choudhury, A.
Porta, N.
Hall, E.
Song, Y.P.
Owen, R.
MacKay, R.
West, C.M.
Lewis, R.
Hussain, S.A.
James, N.D.
Huddart, R.
Hoskin, P.
BC2001 and BCON investigators,
(2021). Hypofractionated radiotherapy in locally advanced bladder cancer: an individual patient data meta-analysis of the BC2001 and BCON trials. Lancet oncol,
Vol.22
(2),
pp. 246-255.
show abstract
BACKGROUND: Two radiotherapy fractionation schedules are used to treat locally advanced bladder cancer: 64 Gy in 32 fractions over 6·5 weeks and a hypofractionated schedule of 55 Gy in 20 fractions over 4 weeks. Long-term outcomes of these schedules in several cohort studies and case series suggest that response, survival, and toxicity are similar, but no direct comparison has been published. The present study aimed to assess the non-inferiority of 55 Gy in 20 fractions to 64 Gy in 32 fractions in terms of invasive locoregional control and late toxicity in patients with locally advanced bladder cancer. METHODS: We did a meta-analysis of individual patient data from patients (age ≥18 years) with locally advanced bladder cancer (T1G3 [high-grade non-muscle invasive] or T2-T4, N0M0) enrolled in two multicentre, randomised, controlled, phase 3 trials done in the UK: BC2001 (NCT00024349; assessing addition of chemotherapy to radiotherapy) and BCON (NCT00033436; assessing hypoxia-modifying therapy combined with radiotherapy). In each trial, the fractionation schedule was chosen according to local standard practice. Co-primary endpoints were invasive locoregional control (non-inferiority margin hazard ratio [HR]=1·25); and late bladder or rectum toxicity, assessed with the Late Effects Normal Tissue Task Force-Subjective, Objective, Management, Analytic tool (non-inferiority margin for absolute risk difference [RD]=10%). If non-inferiority was met for invasive locoregional control, superiority could be considered if the 95% CI for the treatment effect excluded the null effect (HR=1). One-stage individual patient data meta-analysis models for the time-to-event and binary outcomes were used, accounting for trial differences, within-centre correlation, randomised treatment received, baseline variable imbalances, and potential confounding from relevant prognostic factors. FINDINGS: 782 patients with known fractionation schedules (456 from the BC2001 trial and 326 from the BCON trial; 376 (48%) received 64 Gy in 32 fractions and 406 (52%) received 55 Gy in 20 fractions) were included in our meta-analysis. Median follow-up was 120 months (IQR 99-159). Patients who received 55 Gy in 20 fractions had a lower risk of invasive locoregional recurrence than those who received 64 Gy in 32 fractions (adjusted HR 0·71 [95% CI 0·52-0·96]). Both schedules had similar toxicity profiles (adjusted RD -3·37% [95% CI -11·85 to 5·10]). INTERPRETATION: A hypofractionated schedule of 55 Gy in 20 fractions is non-inferior to 64 Gy in 32 fractions with regard to both invasive locoregional control and toxicity, and is superior with regard to invasive locoregional control. 55 Gy in 20 fractions should be adopted as a standard of care for bladder preservation in patients with locally advanced bladder cancer. FUNDING: Cancer Research UK..
Winfield, J.M.
Wakefield, J.C.
Brenton, J.D.
AbdulJabbar, K.
Savio, A.
Freeman, S.
Pace, E.
Lutchman-Singh, K.
Vroobel, K.M.
Yuan, Y.
Banerjee, S.
Porta, N.
Ahmed Raza, S.E.
deSouza, N.M.
(2021). Biomarkers for site-specific response to neoadjuvant chemotherapy in epithelial ovarian cancer: relating MRI changes to tumour cell load and necrosis. British journal of cancer,
.
show abstract
Background Diffusion-weighted magnetic resonance imaging (DW-MRI) potentially interrogates site-specific response to neoadjuvant chemotherapy (NAC) in epithelial ovarian cancer (EOC).Methods Participants with newly diagnosed EOC due for platinum-based chemotherapy and interval debulking surgery were recruited prospectively in a multicentre study (n = 47 participants). Apparent diffusion coefficient (ADC) and solid tumour volume (up to 10 lesions per participant) were obtained from DW-MRI before and after NAC (including double-baseline for repeatability assessment in n = 19). Anatomically matched lesions were analysed after surgical excision (65 lesions obtained from 25 participants). A trained algorithm determined tumour cell fraction, percentage tumour and percentage necrosis on histology. Whole-lesion post-NAC ADC and pre/post-NAC ADC changes were compared with histological metrics (residual tumour/necrosis) for each tumour site (ovarian, omental, peritoneal, lymph node).Results Tumour volume reduced at all sites after NAC. ADC increased between pre- and post-NAC measurements. Post-NAC ADC correlated negatively with tumour cell fraction. Pre/post-NAC changes in ADC correlated positively with percentage necrosis. Significant correlations were driven by peritoneal lesions.Conclusions Following NAC in EOC, the ADC (measured using DW-MRI) increases differentially at disease sites despite similar tumour shrinkage, making its utility site-specific. After NAC, ADC correlates negatively with tumour cell fraction; change in ADC correlates positively with percentage necrosis.Clinical trial registration ClinicalTrials.gov NCT01505829..
McHugh, D.J.
Porta, N.
Little, R.A.
Cheung, S.
Watson, Y.
Parker, G.J.
Jayson, G.C.
O'Connor, J.P.
(2021). Image Contrast, Image Pre-Processing, and T1 Mapping Affect MRI Radiomic Feature Repeatability in Patients with Colorectal Cancer Liver Metastases. Cancers,
Vol.13
(2).
show abstract
Imaging biomarkers require technical, biological, and clinical validation to be translated into robust tools in research or clinical settings. This study contributes to the technical validation of radiomic features from magnetic resonance imaging (MRI) by evaluating the repeatability of features from four MR sequences: pre-contrast T1- and T2-weighted images, pre-contrast quantitative T1 maps (qT1), and contrast-enhanced T1-weighted images. Fifty-one patients with colorectal cancer liver metastases were scanned twice, up to 7 days apart. Repeatability was quantified using the intraclass correlation coefficient (ICC) and repeatability coefficient (RC), and the impact of non-Gaussian feature distributions and image normalisation was evaluated. Most radiomic features had non-Gaussian distributions, but Box-Cox transformations enabled ICCs and RCs to be calculated appropriately for an average of 97% of features across sequences. ICCs ranged from 0.30 to 0.99, with volume and other shape features tending to be most repeatable; volume ICC > 0.98 for all sequences. 19% of features from non-normalised images exhibited significantly different ICCs in pair-wise sequence comparisons. Normalisation tended to increase ICCs for pre-contrast T1- and T2-weighted images, and decrease ICCs for qT1 maps. RCs tended to vary more between sequences than ICCs, showing that evaluations of feature performance depend on the chosen metric. This work suggests that feature-specific repeatability, from specific combinations of MR sequence and pre-processing steps, should be evaluated to select robust radiomic features as biomarkers in specific studies. In addition, as different repeatability metrics can provide different insights into a specific feature, consideration of the appropriate metric should be taken in a study-specific context..
Mariam, N.B.
Song, Y.P.
Joseph, N.
Hoskin, P.
Reeves, K.
Porta, N.
James, N.
Choudhury, A.
(2021). Hypofractionation: less is more?. Oncotarget,
Vol.12
(17),
pp. 1729-1733.
show abstract
One third of patients with bladder cancer present with muscle invasive bladder cancer (MIBC) which has a poor prognosis. International guidelines for the management of MIBC recommend radical cystectomy or bladder-preserving treatment based on radical radiotherapy with a form of radiosensitisation. In the UK, both conventional fractionation with 64 Gy in 32 fractions and hypofractionation with 55 Gy in 20 fractions are standard of care options with the choice varying between centres. A meta-analysis of individual patients with locally advanced bladder cancer from two UK multicentre phase 3 trials was published recently. This study evaluated the non-inferiority of a hypofractionated schedule compared to a conventional regime. This analysis confirmed the non-inferiority of the hypofractionated regimen, and noted superior locoregional control. We discuss the relevance of these findings to current practice while considering the radiobiology of hypofractionation, the role of systemic therapies and radiosensitisation, as well as the socioeconomic benefits..
Carreira, S.
Porta, N.
Arce-Gallego, S.
Seed, G.
Llop-Guevara, A.
Bianchini, D.
Rescigno, P.
Paschalis, A.
Bertan, C.
Baker, C.
Goodall, J.
Miranda, S.
Riisnaes, R.
Figueiredo, I.
Ferreira, A.
Pereira, R.
Crespo, M.
Gurel, B.
Nava Rodrigues, D.
Pettitt, S.J.
Yuan, W.
Serra, V.
Rekowski, J.
Lord, C.J.
Hall, E.
Mateo, J.
de Bono, J.S.
(2021). Biomarkers Associating with PARP Inhibitor Benefit in Prostate Cancer in the TOPARP-B Trial. Cancer discovery,
.
show abstract
PARP inhibitors are approved for treating advanced prostate cancers (APCs) with various defective DNA repair genes; however, further studies to clinically qualify predictive biomarkers are warranted. Herein we analyzed TOPARP-B Phase II clinical trial samples, evaluating whole exome and low-pass whole genome sequencing and immunohistochemical assays evaluating ATM and RAD51 foci (testing homologous recombination repair function). BRCA1/2 germline and somatic pathogenic mutations associated with similar benefit from olaparib; greater benefit was observed with homozygous BRCA deletion. Biallelic, but not mono-allelic, PALB2 deleterious alterations were associated with clinical benefit. In the ATM cohort, loss of ATM protein by immunohistochemistry associated with better outcome. RAD51 foci loss identified tumors with biallelic BRCA and PALB2 alteration while most ATM- and CDK12-altered APCs had higher RAD51 foci levels. Overall, APCs with homozygous BRCA2 deletion are exceptional responders; PALB2 biallelic loss and loss of ATM immunohistochemical expression associated with clinical benefit..
Mateo, J.
Porta, N.
Bianchini, D.
McGovern, U.
Elliott, T.
Jones, R.
Syndikus, I.
Ralph, C.
Jain, S.
Varughese, M.
Parikh, O.
Crabb, S.
Robinson, A.
McLaren, D.
Birtle, A.
Tanguay, J.
Miranda, S.
Figueiredo, I.
Seed, G.
Bertan, C.
Flohr, P.
Ebbs, B.
Rescigno, P.
Fowler, G.
Ferreira, A.
Riisnaes, R.
Pereira, R.
Curcean, A.
Chandler, R.
Clarke, M.
Gurel, B.
Crespo, M.
Nava Rodrigues, D.
Sandhu, S.
Espinasse, A.
Chatfield, P.
Tunariu, N.
Yuan, W.
Hall, E.
Carreira, S.
de Bono, J.S.
(2020). Olaparib in patients with metastatic castration-resistant prostate cancer with DNA repair gene aberrations (TOPARP-B): a multicentre, open-label, randomised, phase 2 trial. The lancet. oncology,
Vol.21
(1),
pp. 162-174.
show abstract
Background Metastatic castration-resistant prostate cancer is enriched in DNA damage response (DDR) gene aberrations. The TOPARP-B trial aims to prospectively validate the association between DDR gene aberrations and response to olaparib in metastatic castration-resistant prostate cancer.Methods In this open-label, investigator-initiated, randomised phase 2 trial following a selection (or pick-the-winner) design, we recruited participants from 17 UK hospitals. Men aged 18 years or older with progressing metastatic castration-resistant prostate cancer previously treated with one or two taxane chemotherapy regimens and with an Eastern Cooperative Oncology Group performance status of 2 or less had tumour biopsies tested with targeted sequencing. Patients with DDR gene aberrations were randomly assigned (1:1) by a computer-generated minimisation method, with balancing for circulating tumour cell count at screening, to receive 400 mg or 300 mg olaparib twice daily, given continuously in 4-week cycles until disease progression or unacceptable toxicity. Neither participants nor investigators were masked to dose allocation. The primary endpoint of confirmed response was defined as a composite of all patients presenting with any of the following outcomes: radiological objective response (as assessed by Response Evaluation Criteria in Solid Tumors 1.1), a decrease in prostate-specific antigen (PSA) of 50% or more (PSA50) from baseline, or conversion of circulating tumour cell count (from ≥5 cells per 7·5 mL blood at baseline to <5 cells per 7·5 mL blood). A confirmed response in a consecutive assessment after at least 4 weeks was required for each component. The primary analysis was done in the evaluable population. If at least 19 (43%) of 44 evaluable patients in a dose cohort responded, then the dose cohort would be considered successful. Safety was assessed in all patients who received at least one dose of olaparib. This trial is registered at ClinicalTrials.gov, NCT01682772. Recruitment for the trial has completed and follow-up is ongoing.Findings 711 patients consented for targeted screening between April 1, 2015, and Aug 30, 2018. 161 patients had DDR gene aberrations, 98 of whom were randomly assigned and treated (49 patients for each olaparib dose), with 92 evaluable for the primary endpoint (46 patients for each olaparib dose). Median follow-up was 24·8 months (IQR 16·7-35·9). Confirmed composite response was achieved in 25 (54·3%; 95% CI 39·0-69·1) of 46 evaluable patients in the 400 mg cohort, and 18 (39·1%; 25·1-54·6) of 46 evaluable patients in the 300 mg cohort. Radiological response was achieved in eight (24·2%; 11·1-42·3) of 33 evaluable patients in the 400 mg cohort and six (16·2%; 6·2-32·0) of 37 in the 300 mg cohort; PSA50 response was achieved in 17 (37·0%; 23·2-52·5) of 46 and 13 (30·2%; 17·2-46·1) of 43; and circulating tumour cell count conversion was achieved in 15 (53·6%; 33·9-72·5) of 28 and 13 (48·1%; 28·7-68·1) of 27. The most common grade 3-4 adverse event in both cohorts was anaemia (15 [31%] of 49 patients in the 300 mg cohort and 18 [37%] of 49 in the 400 mg cohort). 19 serious adverse reactions were reported in 13 patients. One death possibly related to treatment (myocardial infarction) occurred after 11 days of treatment in the 300 mg cohort.Interpretation Olaparib has antitumour activity against metastatic castration-resistant prostate cancer with DDR gene aberrations, supporting the implementation of genomic stratification of metastatic castration-resistant prostate cancer in clinical practice.Funding Cancer Research UK, AstraZeneca, Prostate Cancer UK, the Prostate Cancer Foundation, the Experimental Cancer Medicine Centres Network, and the National Institute for Health Research Biomedical Research Centres..
Huddart, R.A.
Hall, E.
Lewis, R.
Porta, N.
Crundwell, M.
Jenkins, P.J.
Rawlings, C.
Tremlett, J.
Campani, L.
Hendron, C.
Hussain, S.A.
James, N.D.
BC2001 Investigators,
(2020). Patient-reported Quality of Life Outcomes in Patients Treated for Muscle-invasive Bladder Cancer with Radiotherapy ± Chemotherapy in the BC2001 Phase III Randomised Controlled Trial. European urology,
Vol.77
(2),
pp. 260-268.
show abstract
Background BC2001, the largest randomised trial of bladder-sparing treatment for muscle-invasive bladder cancer, demonstrated improvement of local control and bladder cancer-specific survival from the addition of concomitant 5-fluorouracil and mitomycin C to radiotherapy.Objective To determine the impact of treatment on the health-related quality of life (HRQoL) of BC2001 participants.Design, setting, and participants 458 UK patients with T2-T4a N0 M0 transitional cell carcinoma of the bladder.Intervention Patients were randomised to the chemotherapy comparison (radiotherapy, 178, or chemoradiotherapy, 182); and/or to the radiotherapy comparison (standard, 108, or reduced high-dose volume radiotherapy, 111).Outcome measurements and statistical analysis Patients completed Functional Assessment of Cancer Therapy-Bladder (FACT-BL) questionnaires at baseline, end of treatment (EoT), and 6, 12, 24, 36, 48, and 60 months after radiotherapy. The primary endpoint was change from baseline in the bladder cancer subscale (BLCS) at 12 months.Results and limitations Data were available for 331 (92%) and 204 (93%) participants at baseline and for 192 (54%) and 114 (52%) at 12 months for the chemotherapy and radiotherapy comparisons, respectively. HRQoL declined at EoT (BLCS -5.06 [99% confidence interval: -6.12 to -4.00, p< 0.001]; overall FACT-B TOTAL score -8.22 [-10.76 to -5.68, p< 0.01]), recovering to baseline at 6 months and remaining similar to baseline subsequently. There was no significant difference between randomised groups at any time point.Conclusions Immediately following (chemo)radiotherapy, a significant proportion of patients report declines in HRQoL, which improve to baseline after 6 months. Two-thirds of patients report stable or improved HRQoL on long-term follow-up. There is no evidence of impairment in HRQoL resulting from the addition of chemotherapy.Patient summary Quality of life of bladder cancer patients treated with radiotherapy±chemotherapy deteriorates during treatment, but improves to at least pretreatment levels within 6 months. Addition of chemotherapy to radiotherapy does not affect patient-reported quality of life..
Mateo, J.
Seed, G.
Bertan, C.
Rescigno, P.
Dolling, D.
Figueiredo, I.
Miranda, S.
Nava Rodrigues, D.
Gurel, B.
Clarke, M.
Atkin, M.
Chandler, R.
Messina, C.
Sumanasuriya, S.
Bianchini, D.
Barrero, M.
Petermolo, A.
Zafeiriou, Z.
Fontes, M.
Perez-Lopez, R.
Tunariu, N.
Fulton, B.
Jones, R.
McGovern, U.
Ralph, C.
Varughese, M.
Parikh, O.
Jain, S.
Elliott, T.
Sandhu, S.
Porta, N.
Hall, E.
Yuan, W.
Carreira, S.
de Bono, J.S.
(2020). Genomics of lethal prostate cancer at diagnosis and castration resistance. The journal of clinical investigation,
Vol.130
(4),
pp. 1743-1751.
show abstract
The genomics of primary prostate cancer differ from those of metastatic castration-resistant prostate cancer (mCRPC). We studied genomic aberrations in primary prostate cancer biopsies from patients who developed mCRPC, also studying matching, same-patient, diagnostic, and mCRPC biopsies following treatment. We profiled 470 treatment-naive prostate cancer diagnostic biopsies and, for 61 cases, mCRPC biopsies, using targeted and low-pass whole-genome sequencing (n = 52). Descriptive statistics were used to summarize mutation and copy number profile. Prevalence was compared using Fisher's exact test. Survival correlations were studied using log-rank test. TP53 (27%) and PTEN (12%) and DDR gene defects (BRCA2 7%; CDK12 5%; ATM 4%) were commonly detected. TP53, BRCA2, and CDK12 mutations were markedly more common than described in the TCGA cohort. Patients with RB1 loss in the primary tumor had a worse prognosis. Among 61 men with matched hormone-naive and mCRPC biopsies, differences were identified in AR, TP53, RB1, and PI3K/AKT mutational status between same-patient samples. In conclusion, the genomics of diagnostic prostatic biopsies acquired from men who develop mCRPC differ from those of the nonlethal primary prostatic cancers. RB1/TP53/AR aberrations are enriched in later stages, but the prevalence of DDR defects in diagnostic samples is similar to mCRPC..
Kolinsky, M.P.
Rescigno, P.
Bianchini, D.
Zafeiriou, Z.
Mehra, N.
Mateo, J.
Michalarea, V.
Riisnaes, R.
Crespo, M.
Figueiredo, I.
Miranda, S.
Nava Rodrigues, D.
Flohr, P.
Tunariu, N.
Banerji, U.
Ruddle, R.
Sharp, A.
Welti, J.
Lambros, M.
Carreira, S.
Raynaud, F.I.
Swales, K.E.
Plymate, S.
Luo, J.
Tovey, H.
Porta, N.
Slade, R.
Leonard, L.
Hall, E.
de Bono, J.S.
(2020). A phase I dose-escalation study of enzalutamide in combination with the AKT inhibitor AZD5363 (capivasertib) in patients with metastatic castration-resistant prostate cancer. Annals of oncology : official journal of the european society for medical oncology,
Vol.31
(5),
pp. 619-625.
show abstract
Background Activation of the PI3K/AKT/mTOR pathway through loss of phosphatase and tensin homolog (PTEN) occurs in approximately 50% of patients with metastatic castration-resistant prostate cancer (mCRPC). Recent evidence suggests that combined inhibition of the androgen receptor (AR) and AKT may be beneficial in mCRPC with PTEN loss.Patients and methods mCRPC patients who previously failed abiraterone and/or enzalutamide, received escalating doses of AZD5363 (capivasertib) starting at 320 mg twice daily (b.i.d.) given 4 days on and 3 days off, in combination with enzalutamide 160 mg daily. The co-primary endpoints were safety/tolerability and determining the maximum tolerated dose and recommended phase II dose; pharmacokinetics, antitumour activity, and exploratory biomarker analysis were also evaluated.Results Sixteen patients were enrolled, 15 received study treatment and 13 were assessable for dose-limiting toxicities (DLTs). Patients were treated at 320, 400, and 480 mg b.i.d. dose levels of capivasertib. The recommended phase II dose identified for capivasertib was 400 mg b.i.d. with 1/6 patients experiencing a DLT (maculopapular rash) at this level. The most common grade ≥3 adverse events were hyperglycemia (26.7%) and rash (20%). Concomitant administration of enzalutamide significantly decreased plasma exposure of capivasertib, though this did not appear to impact pharmacodynamics. Three patients met the criteria for response (defined as prostate-specific antigen decline ≥50%, circulating tumour cell conversion, and/or radiological response). Responses were seen in patients with PTEN loss or activating mutations in AKT, low or absent AR-V7 expression, as well as those with an increase in phosphorylated extracellular signal-regulated kinase (pERK) in post-exposure samples.Conclusions The combination of capivasertib and enzalutamide is tolerable and has antitumour activity, with all responding patients harbouring aberrations in the PI3K/AKT/mTOR pathway.Clinical trial number NCT02525068..
Mostafid, A.H.
Porta, N.
Cresswell, J.
Griffiths, T.R.
Kelly, J.D.
Penegar, S.R.
Davenport, K.
McGrath, J.S.
Campain, N.
Cooke, P.
Masood, S.
Knowles, M.A.
Feber, A.
Knight, A.
Catto, J.W.
Lewis, R.
Hall, E.
(2020). CALIBER: a phase II randomized feasibility trial of chemoablation with mitomycin-C vs surgical management in low-risk non-muscle-invasive bladder cancer. Bju international,
Vol.125
(6),
pp. 817-826.
show abstract
Objectives To evaluate the activity of intravesical mitomycin-C (MMC) to ablate recurrent low-risk non-muscle-invasive bladder cancer (NMIBC) and assess whether it may enable patients to avoid surgical intervention for treatment of recurrence.Patients and methods CALIBER is a phase II feasibility study. Participants were randomized (2:1) to treatment with four once-weekly MMC 40-mg intravesical instillations (chemoablation arm) or to surgical management. The surgical group was included to assess the feasibility of randomization. The primary endpoint was complete response to intravesical MMC in the chemoablation arm at 3 months, reported with exact 95% confidence intervals (CIs). Secondary endpoints included time to subsequent recurrence, summarized by Kaplan-Meier methods.Results Between February 2015 and August 2017, 82 patients with visual diagnosis of recurrent low-risk NMIBC were enrolled from 24 UK hospitals (chemoablation, n = 54; surgical management, n =28). The median follow-up was 24 months. Complete response at 3 months was 37.0% (20/54; 95% CI 24.3-51.3) with chemoablation and 80.8% (21/26; 95% CI 60.6-93.4) with surgical management. Amongst patients with complete response at 3 months, a similar proportion was recurrence-free by 12 months in both groups (84%). Amongst those with residual disease at 3 months, the 12-month recurrence-free proportion was lower in the surgical management group (40.0%) than in the chemoablation group (84%). Recruitment stopped early as chemoablation did not meet the prespecified threshold of 45% complete responses at 3 months.Conclusion Intravesical chemoablation in low-risk NMIBC is feasible and safe, but did not demonstrate sufficient response in the present trial. After chemoablation there may be a reduction in recurrence rate, even in non-responders, that is greater than with surgery alone. Further research is required to investigate the role and optimal schedule of neoadjuvant intravesical chemotherapy prior to surgery for NMIBC..
Cox, E.
Saramago, P.
Kelly, J.
Porta, N.
Hall, E.
Tan, W.S.
Sculpher, M.
Soares, M.
(2020). Effects of Bladder Cancer on UK Healthcare Costs and Patient Health-Related Quality of Life: Evidence From the BOXIT Trial. Clinical genitourinary cancer,
Vol.18
(4),
pp. e418-e442.
show abstract
Background Limited evidence exists regarding the cost and health-related quality of life (HRQoL) effects of non-muscle-invasive bladder cancer (NMIBC) recurrence and progression to muscle-invasive bladder cancer (MIBC). We examined these effects using evidence from a recent randomized control trial.Material and methods The costs and HRQoL associated with bladder cancer were assessed using data from the BOXIT trial (bladder COX-2 inhibition trial; n = 472). The cost and HRQoL effects from clinical events were estimated using generalized estimating equations. The costs were derived from the recorded resource usage and UK unit costs. HRQoL was assessed using the EQ-5D-3L and reported UK preference tariffs. The events were categorized using the TMN classification.Results Cases of grade 3 recurrence and progression were associated with statistically significant HRQoL decrements (-0.08; 95% confidence interval [CI], -0.13 to -0.03; and -0.10; 95% CI, -0.17 to -0.03, respectively). The 3-year average cost per NMIBC patient was estimated at £8735 (95% CI, 8325-9145). Cases of grade 1, 2, and 3 recurrence were associated with annual cost effects of £1218 (95% CI, 403-2033), £1677 (95% CI, 920-2433), and £3957 (95% CI, 2332-5583), respectively. Progression to MIBC was associated with an average increase in costs of £5407 (95% CI, 2663-8152).Conclusion Evidence from the BOXIT trial suggests that patients with NMIBC will both experience decrements in HRQoL and incur significant costs, especially in the event of a grade 3 recurrence or a progression to MIBC..
Syndikus, I.
Cruickshank, C.
Staffurth, J.
Tree, A.
Henry, A.
Naismith, O.
Mayles, H.
Snelson, N.
Hassan, S.
Brown, S.
Porta, N.
Griffin, C.
Hall, E.
(2020). PIVOTALboost: A phase III randomised controlled trial of prostate and pelvis versus prostate alone radiotherapy with or without prostate boost (CRUK/16/018). Clinical and translational radiation oncology,
Vol.25,
pp. 22-28.
show abstract
•PIVOTALboost evaluates benefits/toxicity of pelvic node RT and focal boost dose escalation.•Unfavourable intermediate/high risk and bulky local disease are most likely to benefit.•Functional MRI imaging is used to select patients for different types of dose escalation.•HDR brachytherapy or focal dose escalation with IMRT are used as options.•Training and support is provided to reduce variations of contouring and radiotherapy planning.•The trial is recruiting patients in 38 radiotherapy centres through the UK..
Kelly, J.D.
Tan, W.S.
Porta, N.
Mostafid, H.
Huddart, R.
Protheroe, A.
Bogle, R.
Blazeby, J.
Palmer, A.
Cresswell, J.
Johnson, M.
Brough, R.
Madaan, S.
Andrews, S.
Cruickshank, C.
Burnett, S.
Maynard, L.
Hall, E.
BOXIT Investigators,
(2019). BOXIT-A Randomised Phase III Placebo-controlled Trial Evaluating the Addition of Celecoxib to Standard Treatment of Transitional Cell Carcinoma of the Bladder (CRUK/07/004). European urology,
Vol.75
(4),
pp. 593-601.
show abstract
Background Non-muscle-invasive bladder cancer (NMIBC) has a significant risk of recurrence despite adjuvant intravesical therapy.Objective To determine whether celecoxib, a cyclo-oxygenase 2 inhibitor, reduces the risk of recurrence in NMIBC patients receiving standard treatment.Design, setting, and participants BOXIT (CRUK/07/004, ISRCTN84681538) is a double-blinded, phase III, randomised controlled trial. Patients aged ≥18 yr with intermediate- or high-risk NMIBC were accrued across 51 UK centres between 1 November 2007 and 23 July 2012.Intervention Patients were randomised (1:1) to celecoxib 200mg twice daily or placebo for 2 yr. Patients with intermediate-risk NMIBC were recommended to receive six weekly mitomycin C instillations; high-risk NMIBC cases received six weekly bacillus Calmette-Guérin and maintenance therapy.Outcome measurements and statistical analysis The primary endpoint was time to disease recurrence. Analysis was by intention to treat.Results and limitations A total of 472 patients were randomised (236:236). With median follow-up of 44 mo (interquartile range: 36-57), 3-yr recurrence-free rate (95% confidence interval) was as follows: celecoxib 68% (61-74%) versus placebo 64% (57-70%; hazard ratio [HR] 0.82 [0.60-1.12], p=0.2). There was no difference in high-risk (HR 0.77 [0.52-1.15], p=0.2) or intermediate-risk (HR 0.90 [0.55-1.48], p=0.7) NMIBC. Subgroup analysis suggested that time to recurrence was longer in pT1 NMIBC patients treated with celecoxib compared with those receiving placebo (HR 0.53 [0.30-0.94], interaction test p=0.04). The 3-yr progression rates in high-risk patients were low: 10% (6.5-17%) and 9.7% (6.0-15%) in celecoxib and placebo arms, respectively. Incidence of serious cardiovascular events was higher in celecoxib (5.2%) than in placebo (1.7%) group (difference +3.4% [-0.3% to 7.2%], p=0.07).Conclusions BOXIT did not show that celecoxib reduces the risk of recurrence in intermediate- or high-risk NMIBC, although celecoxib was associated with delayed time to recurrence in pT1 NMIBC patients. The increased risk of cardiovascular events does not support the use of celecoxib.Patient summary Celecoxib was not shown to reduce the risk of recurrence in intermediate- or high-risk non-muscle-invasive bladder cancer (NMIBC), although celecoxib was associated with delayed time to recurrence in pT1 NMIBC patients. The increased risk of cardiovascular events does not support the use of celecoxib..
Cullen, M.
Huddart, R.
Joffe, J.
Gardiner, D.
Maynard, L.
Hutton, P.
Mazhar, D.
Shamash, J.
Wheater, M.
White, J.
Goubar, A.
Porta, N.
Witts, S.
Lewis, R.
Hall, E.
111 Trial Management Group,
(2019). The 111 Study: A Single-arm, Phase 3 Trial Evaluating One Cycle of Bleomycin, Etoposide, and Cisplatin as Adjuvant Chemotherapy in High-risk, Stage 1 Nonseminomatous or Combined Germ Cell Tumours of the Testis. European urology,
.
show abstract
BACKGROUND:Standard management in the UK for high-risk stage 1 nonseminoma germ cell tumours of the testis (NSGCTT) is two cycles of adjuvant bleomycin, etoposide (360 mg/m2), and cisplatin (BE360P) chemotherapy, or surveillance. OBJECTIVE:To test whether one cycle of BE500P achieves similar recurrence rates to two cycles of BE360P. DESIGN, SETTING, AND PARTICIPANTS:A total of 246 patients with vascular invasion-positive stage 1 NSGCTT or combined seminoma + NSGCTT were centrally registered in a single-arm prospective study. INTERVENTION:One cycle comprising bleomycin 30000 IU on days 1, 8, and 15, etoposide 165 mg/m2 on days 1-3, and cisplatin 50 mg/m2 on days 1-2, plus antibacterial and granulocyte colony stimulating factor prophylaxis. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS:The primary endpoint was 2-yr malignant recurrence (MR); the aim was to exclude a rate of ≥5%. Participants had regular imaging and tumour marker (TM) assessment for 5 yr. RESULTS AND LIMITATIONS:The median follow-up was 49 mo (interquartile range 37-60). Ten patients with rising TMs at baseline were excluded. Four patients had MR at 6, 7, 13, and 27 mo; all received second-line chemotherapy and surgery and three remained recurrence-free at 5 yr. The 2-yr MR rate was 1.3% (95% confidence interval 0.3-3.7%). Three patients developed nonmalignant recurrences with localised teratoma differentiated, rendered disease-free after surgery. Grade 3-4 febrile neutropenia occurred in 6.8% of participants. CONCLUSIONS:BE500P is safe and the 2-yr MR rate is consistent with that seen following two BE360P cycles. The 111 study is the largest prospective trial investigating one cycle of adjuvant BE500P in high-risk stage 1 NSGCTT. Adoption of one cycle of BE500P as standard would reduce overall exposure to chemotherapy in this young population. PATIENT SUMMARY:Removing the testicle fails to cure many patients with high-risk primary testicular cancer since undetectable cancers are often present elsewhere. A standard additional treatment in Europe is two cycles of chemotherapy to eradicate these. This trial shows one cycle has few adverse effects and comparable outcomes to those seen with two cycles..
Haviland, J.S.
Mannino, M.
Griffin, C.
Porta, N.
Sydenham, M.
Bliss, J.M.
Yarnold, J.R.
START Trialists' Group,
(2018). Late normal tissue effects in the arm and shoulder following lymphatic radiotherapy: Results from the UK START (Standardisation of Breast Radiotherapy) trials. Radiotherapy and oncology : journal of the european society for therapeutic radiology and oncology,
Vol.126
(1),
pp. 155-162.
show abstract
Background and purpose Adjuvant lymphatic radiotherapy (LNRT) is recommended for selected axillary node positive women with early breast cancer. We investigated whether hypofractionated LNRT is safe combined with similarly-hypofractionated breast/chest wall radiotherapy (RT).Material and methods The Standardisation of Breast Radiotherapy (START) pilot, A and B trials randomised women with early breast cancer to schedules of 2.67-3.3 Gy versus 2.0 Gy fractions (control). RT adverse effects were assessed by patients using the EORTC QLQ-BR23 and protocol-specific questions, and by physicians. Rates of arm/shoulder effects were compared between schedules for patients given LNRT.Results 864/5861 (14.7%) patients received LNRT (385 START-pilot, 318 START-A, 161 START-B). Prevalences of moderate/marked arm/shoulder effects were low up to 10 years. There were no significant differences between the hypofractionated and control groups for patient- and physician-assessed symptoms in START-A or START-B. In START-pilot, adverse effect rates were higher after 13 fractions of 3.3 Gy, consistent with effects reported in the breast/chest wall (significant for shoulder stiffness, HR 3.07, 95%CI 1.62-5.83, p = 0.001).Conclusions The START trial results suggest that appropriately-dosed hypofractionated LNRT is safe in the long-term, according to patient and physician-assessed arm and shoulder symptoms. These findings are consistent with those reported after the same schedules delivered to the breast/chest wall..
Cheang, M.C.
Bliss, J.M.
Viale, G.
Speirs, V.
Palmieri, C.
Shaaban, A.
Lønning, P.E.
Morden, J.
Porta, N.
Jassem, J.
van De Velde, C.J.
Rasmussen, B.B.
Verhoeven, D.
Bartlett, J.M.
Coombes, R.C.
PathIES Sub-Committee,
(2018). Evaluation of applying IHC4 as a prognostic model in the translational study of Intergroup Exemestane Study (IES): PathIES. Breast cancer research and treatment,
Vol.168
(1),
pp. 169-178.
show abstract
BACKGROUND:Intergroup Exemestane Study (IES) was a randomised study that showed a survival benefit of switching adjuvant endocrine therapy after 2-3 years from tamoxifen to exemestane. This PathIES aimed to assess the role of immunohistochemical (IHC)4 score in determining the relative sensitivity to either tamoxifen or sequential treatment with tamoxifen and exemestane. PATIENTS AND METHODS:Primary tumour samples were available for 1274 patients (27% of IES population). Only patients for whom the IHC4 score could be calculated (based on oestrogen receptor, progesterone receptor, HER2 and Ki67) were included in this analysis (N = 430 patients). The clinical score (C) was based on age, grade, tumour size and nodal status. The association of clinicopathological parameters, IHC4(+C) scores and treatment effect with time to distant recurrence-free survival (TTDR) was assessed in univariable and multivariable Cox regression analyses. A modified clinical score (PathIEscore) (N = 350) was also estimated. RESULTS:Our results confirm the prognostic importance of the original IHC4, alone and in conjunction with clinical scores, but no significant difference with treatment effects was observed. The combined IHC4 + Clinical PathIES score was prognostic for TTDR (P < 0.001) with a hazard ratio (HR) of 5.54 (95% CI 1.29-23.70) for a change from 1st quartile (Q1) to Q1-Q3 and HR of 15.54 (95% CI 3.70-65.24) for a change from Q1 to Q4. CONCLUSION:In the PathIES population, the IHC4 score is useful in predicting long-term relapse in patients who remain disease-free after 2-3 years. This is a first trial to suggest the extending use of IHC4+C score for prognostic indication for patients who have switched endocrine therapies at 2-3 years and who remain disease-free after 2-3 years..
Lorente, D.
Ravi, P.
Mehra, N.
Pezaro, C.
Omlin, A.
Gilman, A.
Miranda, M.
Rescigno, P.
Kolinsky, M.
Porta, N.
Bianchini, D.
Tunariu, N.
Perez, R.
Mateo, J.
Payne, H.
Terstappen, L.
IJzerman, M.
Hall, E.
de Bono, J.
(2018). Interrogating Metastatic Prostate Cancer Treatment Switch Decisions: A Multi-institutional Survey. European urology focus,
Vol.4
(2),
pp. 235-244.
show abstract
Background Evaluation of responses to treatment for metastatic castration-resistant prostate cancer (mCRPC) remains challenging. Consensus criteria based on prostate-specific antigen (PSA) and clinical and radiologic biomarkers are inconsistently utilized. Circulating tumor cell (CTC) counts can inform prognosis and response, but are not routinely used.Objective To evaluate the use of biomarkers and trends in clinical decision-making in current mCRPC treatment.Design, setting, and participants A 23-part online questionnaire was completed by physicians treating mCRPC.Outcome measures and statistical analysis Results are presented as the proportion (%) of physicians responding to each of the options. We used χ 2 and Fisher's tests to compare differences.Results and limitations A total of 118 physicians (22.1%) responded. Of these, 69.4% treated ≥50 mCRPC patients/year. More physicians administered four or fewer courses of cabazitaxel (27.9%) than for docetaxel (10.4%), with no significant difference in the number of courses between bone-only disease and Response Evaluation Criteria in Solid Tumours (RECIST)-evaluable disease. Some 74.5% of respondents considered current biomarkers useful for monitoring disease, but only 39.6% used the Prostate Cancer Working Group (PCWG2) criteria in clinical practice. PSA was considered an important biomarker by 55.7%, but only 41.4% discarded changes in PSA before 12 wk, and only 39.4% were able to identify bone-scan progression according to PCWG2. The vast majority of physicians (90.5%) considered clinical progression to be important for switching treatment. The proportion considering biomarkers important was 71.6% for RECIST, 47.4% for bone scans, 23.2% for CTCs, and 21.1% for PSA. Although 53.1% acknowledged that baseline CTC counts are prognostic, only 33.7% would use CTC changes alone to switch treatment in patients with bone-only disease. The main challenges in using CTC counts were access to CTC technology (84.7%), cost (74.5%), and uncertainty over utility as a response indicator (58.2%).Conclusions A significant proportion of physicians discontinue treatment for mCRPC before 12 wk, raising concerns about inadequate response assessment. Many physicians find current biomarkers useful, but most rely on symptoms to drive treatment switch decisions, suggesting there is a need for more precise biomarkers.Patient summary In this report we analyse the results of a questionnaire evaluating tools for clinical decision-making completed by 118 prostate cancer specialists. We found that most physicians favour clinical progression over prostate-specific antigen or imaging, and that criteria established by the Prostate Cancer Working Group are not widely used..
Franco, P.
Porta, N.
Holliday, J.D.
Willett, P.
(2017). Molecular similarity considerations in the licensing of orphan drugs. Drug discovery today,
Vol.22
(2),
pp. 377-381.
show abstract
The large costs associated with modern drug discovery mean that governments and regulatory bodies need to provide economic incentives to promote the development of orphan drugs (i.e., medicinal products that are designed to treat rare disease that affect only small numbers of patients). Under European Union (EU) legislation, a medicine can only be authorised for treating a specific rare disease if it is not similar to other orphan drugs already authorised for that particular disease. Here, we discuss the use of 2D fingerprints to calculate the Tanimoto similarity between potential and existing orphan drugs for the same disease, and present logistic regression models correlating these computed similarities with the judgements of human experts..
Choudhury, A.
West, C.M.
Porta, N.
Hall, E.
Denley, H.
Hendron, C.
Lewis, R.
Hussain, S.A.
Huddart, R.
James, N.
(2017). The predictive and prognostic value of tumour necrosis in muscle invasive bladder cancer patients receiving radiotherapy with or without chemotherapy in the BC2001 trial (CRUK/01/004). British journal of cancer,
Vol.116
(5),
pp. 649-657.
show abstract
Background Severe chronic hypoxia is associated with tumour necrosis. In patients with muscle invasive bladder cancer (MIBC), necrosis is prognostic for survival following surgery or radiotherapy and predicts benefit from hypoxia modification of radiotherapy. Adding mitomycin C (MMC) and 5-fluorouracil (5-FU) chemotherapy to radiotherapy improved locoregional control (LRC) compared to radiotherapy alone in the BC2001 trial. We hypothesised that tumour necrosis would not predict benefit for the addition of MMC and 5-FU to radiotherapy, but would be prognostic.Methods Diagnostic tumour samples were available from 230 BC2001 patients. Tumour necrosis was scored on whole-tissue sections as absent or present, and its predictive and prognostic significance explored using Cox proportional hazards models. Survival estimates were obtained by Kaplan-Meier methods.Results Tumour necrosis was present in 88/230 (38%) samples. Two-year LRC estimates were 71% (95% CI 61-79%) for the MMC/5-FU chemoradiotherapy group and 49% (95% CI 38-59%) for the radiotherapy alone group. When analysed by tumour necrosis status, the adjusted hazard ratios (HR) for MMC/5-FU vs. no chemotherapy were 0.46 (95% CI: 0.12-0.99; P=0.05, necrosis present) and 0.55 (95% CI: 0.31-0.98; P=0.04, necrosis absent). Multivariable analysis of prognosis for LRC by the presence vs. absence of necrosis yielded a HR=0.89 (95% CI 0.55-1.44, P=0.65). There was no significant association for necrosis as a predictive or prognostic factor with respect to overall survival.Conclusions Tumour necrosis was neither predictive nor prognostic, and therefore MMC/5-FU is an appropriate radiotherapy-sensitising treatment in MIBC independent of necrosis status..
Perez-Lopez, R.
Mateo, J.
Mossop, H.
Blackledge, M.D.
Collins, D.J.
Rata, M.
Morgan, V.A.
Macdonald, A.
Sandhu, S.
Lorente, D.
Rescigno, P.
Zafeiriou, Z.
Bianchini, D.
Porta, N.
Hall, E.
Leach, M.O.
de Bono, J.S.
Koh, D.-.
Tunariu, N.
(2017). Diffusion-weighted Imaging as a Treatment Response Biomarker for Evaluating Bone Metastases in Prostate Cancer: A Pilot Study. Radiology,
Vol.283
(1),
pp. 168-177.
show abstract
Purpose To determine the usefulness of whole-body diffusion-weighted imaging (DWI) to assess the response of bone metastases to treatment in patients with metastatic castration-resistant prostate cancer (mCRPC). Materials and Methods A phase II prospective clinical trial of the poly-(adenosine diphosphate-ribose) polymerase inhibitor olaparib in mCRPC included a prospective magnetic resonance (MR) imaging substudy; the study was approved by the institutional research board, and written informed consent was obtained. Whole-body DWI was performed at baseline and after 12 weeks of olaparib administration by using 1.5-T MR imaging. Areas of abnormal signal intensity on DWI images in keeping with bone metastases were delineated to derive total diffusion volume (tDV); five target lesions were also evaluated. Associations of changes in volume of bone metastases and median apparent diffusion coefficient (ADC) with response to treatment were assessed by using the Mann-Whitney test and logistic regression; correlation with prostate-specific antigen level and circulating tumor cell count were assessed by using Spearman correlation (r). Results Twenty-one patients were included. All six responders to olaparib showed a decrease in tDV, while no decrease was observed in all nonresponders; this difference between responders and nonresponders was significant (P = .001). Increases in median ADC were associated with increased odds of response (odds ratio, 1.08; 95% confidence interval [CI]: 1.00, 1.15; P = .04). A positive association was detected between changes in tDV and best percentage change in prostate-specific antigen level and circulating tumor cell count (r = 0.63 [95% CI: 0.27, 0.83] and r = 0.77 [95% CI: 0.51, 0.90], respectively). When assessing five target lesions, decreases in volume were associated with response (odds ratio for volume increase, 0.89; 95% CI: 0.80, 0.99; P = .037). Conclusion This pilot study showed that decreases in volume and increases in median ADC of bone metastases assessed with whole-body DWI can potentially be used as indicators of response to olaparib in mCRPC. Online supplemental material is available for this article..
Goodall, J.
Mateo, J.
Yuan, W.
Mossop, H.
Porta, N.
Miranda, S.
Perez-Lopez, R.
Dolling, D.
Robinson, D.R.
Sandhu, S.
Fowler, G.
Ebbs, B.
Flohr, P.
Seed, G.
Rodrigues, D.N.
Boysen, G.
Bertan, C.
Atkin, M.
Clarke, M.
Crespo, M.
Figueiredo, I.
Riisnaes, R.
Sumanasuriya, S.
Rescigno, P.
Zafeiriou, Z.
Sharp, A.
Tunariu, N.
Bianchini, D.
Gillman, A.
Lord, C.J.
Hall, E.
Chinnaiyan, A.M.
Carreira, S.
de Bono, J.S.
TOPARP-A investigators,
(2017). Circulating Cell-Free DNA to Guide Prostate Cancer Treatment with PARP Inhibition. Cancer discovery,
Vol.7
(9),
pp. 1006-1017.
show abstract
Biomarkers for more precise patient care are needed in metastatic prostate cancer. We have reported a phase II trial (TOPARP-A) of the PARP inhibitor olaparib in metastatic prostate cancer, demonstrating antitumor activity associating with homologous recombination DNA repair defects. We now report targeted and whole-exome sequencing of serial circulating cell-free DNA (cfDNA) samples collected during this trial. Decreases in cfDNA concentration independently associated with outcome in multivariable analyses (HR for overall survival at week 8: 0.19; 95% CI, 0.06-0.56; P = 0.003). All tumor tissue somatic DNA repair mutations were detectable in cfDNA; allele frequency of somatic mutations decreased selectively in responding patients (χ 2 P < 0.001). At disease progression, following response to olaparib, multiple subclonal aberrations reverting germline and somatic DNA repair mutations ( BRCA2, PALB2 ) back in frame emerged as mechanisms of resistance. These data support the role of liquid biopsies as a predictive, prognostic, response, and resistance biomarker in metastatic prostate cancer. Significance: We report prospectively planned, serial, cfDNA analyses from patients with metastatic prostate cancer treated on an investigator-initiated phase II trial of olaparib. These analyses provide predictive, prognostic, response, and resistance data with "second hit" mutations first detectable at disease progression, suggesting clonal evolution from treatment-selective pressure and platinum resistance. Cancer Discov; 7(9); 1006-17. ©2017 AACR. See related commentary by Domchek, p. 937 See related article by Kondrashova et al., p. 984 See related article by Quigley et al., p. 999 This article is highlighted in the In This Issue feature, p. 920 ..
Martínez-Momblán, M.A.
Gómez, C.
Santos, A.
Porta, N.
Esteve, J.
Úbeda, I.
Halperin, I.
Campillo, B.
Guillaumet, M.
Webb, S.M.
Resmini, E.
(2016). A specific nursing educational program in patients with Cushing’s syndrome. Endocrine,
Vol.53
(1),
pp. 199-209.
Wilkins, A.
Furness, A.
Corbett, R.W.
Bloomfield, A.
Porta, N.
Morris, S.
Ali, Z.
Larkin, J.
Harrington, K.
(2015). The melanoma-specific graded prognostic assessment does not adequately discriminate prognosis in a modern population with brain metastases from malignant melanoma. British journal of cancer,
Vol.113
(9),
pp. 1275-1281.
show abstract
The melanoma-specific graded prognostic assessment (msGPA) assigns patients with brain metastases from malignant melanoma to 1 of 4 prognostic groups. It was largely derived using clinical data from patients treated in the era that preceded the development of newer therapies such as BRAF, MEK and immune checkpoint inhibitors. Therefore, its current relevance to patients diagnosed with brain metastases from malignant melanoma is unclear. This study is an external validation of the msGPA in two temporally distinct British populations.Performance of the msGPA was assessed in Cohort I (1997-2008, n=231) and Cohort II (2008-2013, n=162) using Kaplan-Meier methods and Harrell's c-index of concordance. Cox regression was used to explore additional factors that may have prognostic relevance.The msGPA does not perform well as a prognostic score outside of the derivation cohort, with suboptimal statistical calibration and discrimination, particularly in those patients with an intermediate prognosis. Extra-cerebral metastases, leptomeningeal disease, age and potential use of novel targeted agents after brain metastases are diagnosed, should be incorporated into future prognostic models.An improved prognostic score is required to underpin high-quality randomised controlled trials in an area with a wide disparity in clinical care..
Lincker, H.
Ziogas, C.
Carr, M.
Porta, N.
Eichler, H.-.
(2014). Where do new medicines originate from in the EU?. Nature reviews drug discovery,
Vol.13
(2),
pp. 92-93.
Pedrós, C.
Quintana, B.
Rebolledo, M.
Porta, N.
Vallano, A.
Arnau, J.M.
(2014). Prevalence, risk factors and main features of adverse drug reactions leading to hospital admission. European journal of clinical pharmacology,
Vol.70
(3),
pp. 361-367.
Coelho, S.
Ortíz, F.
Gelpi, R.
Koskinen, P.
Porta, N.
Bestard, O.
Melilli, E.
Taco, O.
Torras, J.
Honkanen, E.
Grinyó, J.M.
Cruzado, J.M.
(2014). Sterile Leukocyturia Is Associated With Interstitial Fibrosis and Tubular Atrophy in Kidney Allograft Protocol Biopsies. American journal of transplantation,
Vol.14
(4),
pp. 908-915.
Franco, P.
Porta, N.
Holliday, J.D.
Willett, P.
(2014). The use of 2D fingerprint methods to support the assessment of structural similarity in orphan drug legislation. Journal of cheminformatics,
Vol.6
(1).
show abstract
Abstract
Background
In the European Union, medicines are authorised for some rare disease only if they are judged to be dissimilar to authorised orphan drugs for that disease. This paper describes the use of 2D fingerprints to show the extent of the relationship between computed levels of structural similarity for pairs of molecules and expert judgments of the similarities of those pairs. The resulting relationship can be used to provide input to the assessment of new active compounds for which orphan drug authorisation is being sought.
Results
143 experts provided judgments of the similarity or dissimilarity of 100 pairs of drug-like molecules from the DrugBank 3.0 database. The similarities of these pairs were also computed using BCI, Daylight, ECFC4, ECFP4, MDL and Unity 2D fingerprints. Logistic regression analyses demonstrated a strong relationship between the human and computed similarity assessments, with the resulting regression models having significant predictive power in experiments using data from submissions of orphan drug medicines to the European Medicines Agency. The BCI fingerprints performed best overall on the DrugBank dataset while the BCI, Daylight, ECFP4 and Unity fingerprints performed comparably on the European Medicines Agency dataset.
Conclusions
Measures of structural similarity based on 2D fingerprints can provide a useful source of information for the assessment of orphan drug status by regulatory authorities.
.
Yildirim, T.
Yilmaz, R.
Altindal, M.
Turkmen, E.
Arici, M.
Altun, B.
Erdem, Y.
Guliyev, O.
Erkmen Uyar, M.
Tutal, E.
Bal, Z.
Sezer, S.
Erkmen Uyar, M.
Bal, U.
Bal, Z.
Tutal, E.
Say n, B.
Guliyev, O.
Erdemir, B.
Sezer, S.
O'Rourke-Potowki, A.
Gauge, N.
Penny, H.
Cronin, A.
Frame, S.
Goldsmith, D.J.
Yagan, J.A.
Chandraker, A.
Velickovic Radovanovic, R.M.
Catic Djordjevic, A.
Mitic, B.
Stefanovic, N.
Cvetkovic, T.
Serpieri, N.
Grosjean, F.
Sileno, G.
Torreggiani, M.
Esposito, V.
Mangione, F.
Abelli, M.
Castoldi, F.
Catucci, D.
Esposito, C.
Dal Canton, A.
Vatazin, A.V.
Zulkarnaev, A.B.
Borst, C.
Liu, Y.
Thoning, J.
Tepel, M.
Libetta, C.
Margiotta, E.
Borettaz, I.
Canevari, M.
Martinelli, C.
Lainu, E.
Abelli, M.
Meloni, F.
Sepe, V.
Dal Canton, A.
Miguel Costa, R.
Vasquez Martul, E.
Reboredo, J.
Rivera, C.
Simonato, F.
Tognarelli, G.
Daidola, G.
Gallo, E.
Burdese, M.
Cantaluppi, V.
Biancone, L.
Segoloni, G.P.
Burdese, M.
Priora, M.
Messina, M.
Tamagnone, M.
Daidola, G.
Linsalata, A.
Lavacca, A.
Biancone, L.
Segoloni, G.
Zuidema, W.
Erdman, R.
van de Wetering, J.
Dor, F.
Roodnat, J.
Massey, E.
Timmerman, L.
IJzermans, J.
Weimar, W.
Goldsmith, D.J.
Sibley-Allen, C.
Hilton, R.
Moghul, M.
Burnapp, L.
Blake, G.
Koo, T.Y.
Park, J.-.
Park, H.C.
Kim, G.-.
Lee, C.H.
Oh, I.H.
Kang, C.M.
Hwang, J.K.
Park, S.C.
Choi, B.S.
Chun, H.J.
Kim, J.I.
Yang, C.W.
Moon, I.S.
Van Laecke, S.
Van Biesen, W.
Nagler, E.V.
Taes, Y.
Peeters, P.
Vanholder, R.
Pruthi, R.
Ravanan, R.
Casula, A.
Harber, M.
Roderick, P.
Fogarty, D.
Cho, A.
Shin, J.-.
Jang, H.R.
Lee, J.E.
Huh, W.
Kim, D.J.
Oh, H.Y.
Kim, Y.-.
Sancho Calabuig, A.
Gavela Martinez, E.
Kanter Berga, J.
Beltran Catalan, S.
Avila Bernabeu, A.I.
Pallardo Mateu, L.M.
Gonzalez, E.
Polanco, N.
Molina, M.
Gutierrez, E.
Garcia Puente, L.
Sevillano, A.
Morales, E.
Praga, M.
Andres, A.
Banasik, M.
Boratynska, M.
Koscielska-Kasprzak, K.
Bartoszek, D.
Myszka, M.
Zmonarski, S.
Nowakowska, B.
Wawrzyniak, E.
Halon, A.
Chudoba, P.
Klinger, M.
Rojas-Rivera, J.
Gonzalez, E.
Polanco, N.
Morales, E.
Andres, A.
Morales, J.M.
Egido, J.
Praga, M.
Kopecky, C.M.
Haidinger, M.
Kaltenecker, C.
Antlanger, M.
Marsche, G.
Holzer, M.
Kovarik, J.
Werzowa, J.
Hecking, M.
Saemann, M.D.
Hwang, J.K.
Kim, J.M.
Koh, E.S.
Chung, B.H.
Park, S.C.
Choi, B.S.
Kim, J.I.
Yang, C.W.
Kim, Y.S.
Moon, I.S.
Banasik, M.
Boratynska, M.
Koscielska-Kasprzak, K.
Krajewska, M.
Mazanowska, O.
Kaminska, D.
Bartoszek, D.
Zabinska, M.
Halon, A.
Malkiewicz, B.
Patrzalek, D.
Klinger, M.
Sulowicz, J.
Szostek, S.
Wojas-Pelc, A.
Ignacak, E.
Sulowicz, W.
Bellizzi, V.
Calella, P.
Cupisti, A.
Capitanini, A.
D'Alessandro, C.
Giannese, D.
Camocardi, A.
Conte, G.
Barsotti, M.
Bilancio, G.
Luciani, R.
Locsey, L.
Seres, I.
Kovacs, D.
Asztalos, L.
Paragh, G.
Wohlfahrtova, M.
Balaz, P.
Rokosny, S.
Wohlfahrt, P.
Bartonova, A.
Viklicky, O.
Kers, J.
Geskus, R.B.
Meijer, L.J.
Bemelman, F.
ten Berge, I.J.
Florquin, S.
Hwang, J.-.
Jiang, M.-.
Lu, Y.-.
Weng, S.-.
Testa, A.
Porto, G.
Sanguedolce, M.
Spoto, B.
Parlongo, R.
Pisano, A.
Enia, G.
Tripepi, G.
Zoccali, C.
Zuidema, W.
Mamode, N.
Lennerling, A.
Citterio, F.
Massey, E.
Van Assche, K.
Sterckx, S.
Frunza, M.
Jung, H.
Pascalev, A.
Johnson, R.
Loven, C.
Weimar, W.
Dor, F.
Soleymanian, T.
Keyvani, H.
Jazayeri, S.M.
Fazeli, Z.
Ghamari, S.
Mahabadi, M.
Chegeni, V.
Najafi, I.
Ganji, M.R.
Meys, K.M.
Groothoff, J.W.
Jager, K.
Schaefer, F.
Tonshoff, B.
Mota, C.
Cransberg, K.
van Stralen, K.
Gurluler, E.
Gures, N.
Alim, A.
Gurkan, A.
Cakir, U.
Berber, I.
Van Laecke, S.
Caluwe, R.
Nagler, E.
Van Biesen, W.
Peeters, P.
Van Vlem, B.
Vanholder, R.
Sulowicz, J.
Wojas-Pelc, A.
Ignacak, E.
Betkowska-Prokop, A.
Kuzniewski, M.
Krzanowski, M.
Sulowicz, W.
Masson, I.
Flamant, M.
Maillard, N.
Cavalier, E.
Moranne, O.
Alamartine, E.
Mariat, C.
Delanaye, P.
Canas Sole, L.L.
Iglesias Alvarez, E.
Pastor, M.C.
Moreno Flores, F.F.
Abujder, V.V.
Graterol, F.F.
Bonet Sol, J.J.
Lauzurica Valdemoros, R.R.
Yoshikawa, M.
Kitamura, K.
Nakai, K.
Goto, S.
Fujii, H.
Ishimura, T.
Takeda, M.
Fujisawa, M.
Nishi, S.
Prasad, N.
Gurjer, D.
Bhadauria, D.
Gupta, A.
Sharma, R.
Kaul, A.
Cybulla, M.
West, M.
Nicholls, K.
Torras, J.
Sunder-Plassmann, G.
Feriozzi, S.
Lo, S.
Wong, P.Y.
Ip, D.
Wong, C.K.
Chow, V.C.
Mo, S.K.
Molnar, M.
Ujszaszi, A.
Czira, M.E.
Novak, M.
Mucsi, I.
Cruzado, J.M.
Coelho, S.
Porta, N.
Bestard, O.
Melilli, E.
Taco, O.
Rivas, I.
Grinyo, J.
Pouteau, L.-.
N'Guyen, J.-.
Hami, A.
Hourmant, M.
Ghahramani, N.
Karparvar, Z.
Shadrou, S.
Ghahramani, M.
Fauvel, J.P.
Hadj-Aissa, A.
Buron, F.
Morelon, E.
Ducher, M.
Heine, C.
Glander, P.
Neumayer, H.-.
Budde, K.
Liefeldt, L.
Montero, N.
Webster, A.C.
Royuela, A.
Zamora, J.
Crespo, M.
Pascual, J.
Adema, A.Y.
van Dorp, W.T.
Mallat, M.J.
de Fijter, H.W.
Kim, Y.S.
Hong, Y.A.
Chung, B.H.
Park, C.W.
Yang, C.W.
Kim, Y.-.
Choi, B.S.
Suleymanlar, G.
Uzundurukan, Z.
Kapuagas, A.
Sencan, I.
Akdag, R.
Pascual, J.
Torio, A.
Mas, V.
Perez-Saez, M.J.
Mir, M.
Faura, A.
Montes-Ares, O.
Checa, M.D.
Crespo, M.
Sawinski, D.
Trofe-Clark, J.
Sparkes, T.
Patel, P.
Goral, S.
Bloom, R.
Kim, H.J.
Park, S.J.
Kim, T.H.
Kim, Y.W.
Kim, Y.H.
Kang, S.W.
Abdel Halim, M.
Gheith, O.
Al-Otaibi, T.
Mosaad, A.
Awadeen, W.
Said, T.
Nair, P.
Nampoory, M.R.
(2013). Transplantation: clinical studies - A. Nephrology dialysis transplantation,
Vol.28
(suppl 1),
pp. i275-i292.
Muñoz, L.
Moure, R.
Porta, N.
Gonzalez, L.
Guerra, R.
Alcaide, F.
Santin, M.
(2013). GeneXpert® for smear-negative pulmonary tuberculosis: does it play a role in low-burden countries?. Diagnostic microbiology and infectious disease,
Vol.75
(3),
pp. 325-326.
Fernández-Lorente, L.
Riera, L.
Bestard, O.
Carrera, M.
Gomà, M.
Porta, N.
Torras, J.
Melilli, E.
Gil-Vernet, S.
Grinyó, J.M.
Cruzado, J.M.
(2012). Long-Term Results of Biopsy-Guided Selection and Allocation of Kidneys From Older Donors in Older Recipients. American journal of transplantation,
Vol.12
(10),
pp. 2781-2788.
Porta, N.
Calle, M.L.
Malats, N.
Gómez, G.
(2012). A dynamic model for the risk of bladder cancer progression. Statistics in medicine,
Vol.31
(3),
pp. 287-300.
Porta, N.
Bonet, C.
Cobo, E.
(2007). Discordance between reported intention-to-treat and per protocol analyses. Journal of clinical epidemiology,
Vol.60
(7),
pp. 663-669.
Mateo, J.
Carreira, S.
Sandhu, S.
Miranda, S.
Mossop, H.
Perez-Lopez, R.
Nava Rodrigues, D.
Robinson, D.
Omlin, A.
Tunariu, N.
Boysen, G.
Porta, N.
Flohr, P.
Gillman, A.
Figueiredo, I.
Paulding, C.
Seed, G.
Jain, S.
Ralph, C.
Protheroe, A.
Hussain, S.
Jones, R.
Elliott, T.
McGovern, U.
Bianchini, D.
Goodall, J.
Zafeiriou, Z.
Williamson, C.T.
Ferraldeschi, R.
Riisnaes, R.
Ebbs, B.
Fowler, G.
Roda, D.
Yuan, W.
Wu, Y.M.
Cao, X.
Brough, R.
Pemberton, H.
A'Hern, R.
Swain, A.
Kunju, L.P.
Eeles, R.
Attard, G.
Lord, C.J.
Ashworth, A.
Rubin, M.A.
Knudsen, K.E.
Feng, F.Y.
Chinnaiyan, A.M.
Hall, E.
de Bono, J.S.
DNA-Repair Defects and Olaparib in Metastatic Prostate Cancer. The new england journal of medicine,
Vol.373
(18),
pp. 1697-1708.
show abstract
Prostate cancer is a heterogeneous disease, but current treatments are not based on molecular stratification. We hypothesized that metastatic, castration-resistant prostate cancers with DNA-repair defects would respond to poly(adenosine diphosphate [ADP]-ribose) polymerase (PARP) inhibition with olaparib.We conducted a phase 2 trial in which patients with metastatic, castration-resistant prostate cancer were treated with olaparib tablets at a dose of 400 mg twice a day. The primary end point was the response rate, defined either as an objective response according to Response Evaluation Criteria in Solid Tumors, version 1.1, or as a reduction of at least 50% in the prostate-specific antigen level or a confirmed reduction in the circulating tumor-cell count from 5 or more cells per 7.5 ml of blood to less than 5 cells per 7.5 ml. Targeted next-generation sequencing, exome and transcriptome analysis, and digital polymerase-chain-reaction testing were performed on samples from mandated tumor biopsies.Overall, 50 patients were enrolled; all had received prior treatment with docetaxel, 49 (98%) had received abiraterone or enzalutamide, and 29 (58%) had received cabazitaxel. Sixteen of 49 patients who could be evaluated had a response (33%; 95% confidence interval, 20 to 48), with 12 patients receiving the study treatment for more than 6 months. Next-generation sequencing identified homozygous deletions, deleterious mutations, or both in DNA-repair genes--including BRCA1/2, ATM, Fanconi's anemia genes, and CHEK2--in 16 of 49 patients who could be evaluated (33%). Of these 16 patients, 14 (88%) had a response to olaparib, including all 7 patients with BRCA2 loss (4 with biallelic somatic loss, and 3 with germline mutations) and 4 of 5 with ATM aberrations. The specificity of the biomarker suite was 94%. Anemia (in 10 of the 50 patients [20%]) and fatigue (in 6 [12%]) were the most common grade 3 or 4 adverse events, findings that are consistent with previous studies of olaparib.Treatment with the PARP inhibitor olaparib in patients whose prostate cancers were no longer responding to standard treatments and who had defects in DNA-repair genes led to a high response rate. (Funded by Cancer Research UK and others; ClinicalTrials.gov number, NCT01682772; Cancer Research UK number, CRUK/11/029.)..
Bliss, J.
Porta, N.
Toms, C.
Banerjee, S.
Stewart, J.
Natrajan, R.
Lord, C.
ATARI trial: ATR inhibitor in combination with olaparib in gynaecological cancers with ARID1A loss or no loss (ENGOT/GYN1/NCRI). International journal of gynecological cancer,
.
Bliss, J.
Porta, N.
Emson, M.
Miller, S.
Morden, J.
Combined Peri-operative Lapatinib and Trastuzumab in Early HER2 Positive Breast Cancer can Identify Early Responders: Results from the UK EPHOS-B Trial (CRUK/08/002. Clinical cancer research,
.
Hall, E.
Parr, H.
Porta, N.
Joint Models for Dynamic Prediction in Localised Prostate Cancer: A Literature Review. ,
.
Philipps, L.
Hall, E.
Porta, N.
Hafeez, S.
Huddart, R.
James, N.
Correlation of clinician and patient reported outcomes in the BC2001 trial. ,
.