scholarly journals Olaparib Versus Nonplatinum Chemotherapy in Patients With Platinum-Sensitive Relapsed Ovarian Cancer and a Germline BRCA1/2 Mutation (SOLO3): A Randomized Phase III Trial

2020 ◽  
Vol 38 (11) ◽  
pp. 1164-1174 ◽  
Author(s):  
Richard T. Penson ◽  
Ricardo Villalobos Valencia ◽  
David Cibula ◽  
Nicoletta Colombo ◽  
Charles A. Leath ◽  
...  

PURPOSE A phase II study (ClinicalTrials.gov identifier: NCT00628251 ) showed activity of olaparib capsules versus pegylated liposomal doxorubicin in patients with germline BRCA-mutated platinum-resistant or partially platinum-sensitive relapsed ovarian cancer. We conducted a phase III trial (SOLO3) of olaparib tablets versus nonplatinum chemotherapy in patients with germline BRCA-mutated platinum-sensitive relapsed ovarian cancer who had received at least 2 prior lines of platinum-based chemotherapy. PATIENTS AND METHODS In this randomized, open-label trial, patients were randomly assigned 2:1 to olaparib 300 mg twice a day or physician’s choice single-agent nonplatinum chemotherapy (pegylated liposomal doxorubicin, paclitaxel, gemcitabine, or topotecan). The primary end point was objective response rate (ORR) in the measurable disease analysis set assessed by blinded independent central review (BICR). The key secondary end point was progression-free survival (PFS) assessed by BICR in the intent-to-treat population. RESULTS Of 266 randomly assigned patients, 178 were assigned to olaparib and 88 to chemotherapy. In patients with measurable disease (olaparib, n = 151; chemotherapy, n = 72), the BICR-assessed ORR was significantly higher with olaparib than with chemotherapy (72.2% v 51.4%; odds ratio [OR], 2.53 [95% CI, 1.40 to 4.58]; P = .002). In the subgroup who had received 2 prior lines of treatment, the ORR was 84.6% with olaparib and 61.5% with chemotherapy (OR, 3.44 [95% CI, 1.42 to 8.54]). BICR-assessed PFS also significantly favored olaparib versus chemotherapy (hazard ratio, 0.62 [95% CI, 0.43 to 0.91]; P = .013; median, 13.4 v 9.2 months). Adverse events were consistent with the established safety profiles of olaparib and chemotherapy. CONCLUSION Olaparib resulted in statistically significant and clinically relevant improvements in ORR and PFS compared with nonplatinum chemotherapy in patients with germline BRCA-mutated platinum-sensitive relapsed ovarian cancer who had received at least 2 prior lines of platinum-based chemotherapy.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. TPS5601-TPS5601 ◽  
Author(s):  
Frederik Marme ◽  
Patricia Pautier ◽  
Els Van Nieuwenhuysen ◽  
Alexander Reuss ◽  
Andres Redondo ◽  
...  

TPS5601 Background: A standard non-platinum based treatment option in patients with relapsed ovarian cancer is bevacizumab in combination with paclitaxel or pegylated liposomal doxorubicin, but responses are still short-lived. Checkpoint-inhibitors as single agent have limited activity in ovarian cancer. However, the role of the checkpoint-inhibitor like atezolizumab, in addition to chemotherapy and bevacizumab in ovarian cancer is so far undefined. Methods: AGO-OVAR 2.29 is a randomized (1:1), double blinded, phase III trial evaluating the efficacy and safety of atezolizumab plus bevacizumab and chemotherapy (weekly paclitaxel or pegylated liposomal doxorubicin) compared with placebo plus bevacizumab and chemotherapy in patients with recurrent ovarian-, fallopian tube, or primary peritoneal cancer with 1st or 2nd relapse within 6 months after platinum-based chemotherapy or 3rd relapse. A tumor biopsy available at study entry for PD-L1 testing is mandatory. Patients are treated with chemotherapy plus bevacizumab +/- atezolizumab/placebo until progression or prohibitive toxicity. Co-primary endpoints are overall survival and progression-free survival. It is planned to randomize 664 patients. A safety interim analysis will be done when 24 patients have been randomized and completed at least cycle 1. As of 1st February 2019, 24 patients have been randomized. Clinical trial information: NCT03353831.


2007 ◽  
Vol 25 (19) ◽  
pp. 2811-2818 ◽  
Author(s):  
David G. Mutch ◽  
Mauro Orlando ◽  
Tiana Goss ◽  
Michael G. Teneriello ◽  
Alan N. Gordon ◽  
...  

Purpose Ovarian cancer (OC) patients experiencing progressive disease (PD) within 6 months of platinum-based therapy in the primary setting are considered platinum resistant (Pt-R). Currently, pegylated liposomal doxorubicin (PLD) is a standard of care for treatment of recurrent Pt-R disease. On the basis of promising phase II results, gemcitabine was compared with PLD for efficacy and safety in taxane-pretreated Pt-R OC patients. Patients and Methods Patients (n = 195) with Pt-R OC were randomly assigned to either gemcitabine 1,000 mg/m2 (days 1 and 8; every 21 days) or PLD 50 mg/m2 (day 1; every 28 days) until PD or undue toxicity. Optional cross-over therapy was allowed at PD or at withdrawal because of toxicity. Primary end point was progression-free survival (PFS). Additional end points included tumor response, time to treatment failure, survival, and quality of life. Results In the gemcitabine and PLD groups, median PFS was 3.6 v 3.1 months; median overall survival was 12.7 v 13.5 months; overall response rate (ORR) was 6.1% v 8.3%; and in the subset of patients with measurable disease, ORR was 9.2% v 11.7%, respectively. None of the efficacy end points showed a statistically significant difference between treatment groups. The PLD group experienced significantly more hand-foot syndrome and mucositis; the gemcitabine group experienced significantly more constipation, nausea/vomiting, fatigue, and neutropenia but not febrile neutropenia. Conclusion Although this was not designed as an equivalency study, gemcitabine and PLD seem to have a comparable therapeutic index in this population of Pt-R taxane-pretreated OC patients. Single-agent gemcitabine may be an acceptable alternative to PLD for patients with Pt-R OC.


2010 ◽  
Vol 28 (19) ◽  
pp. 3107-3114 ◽  
Author(s):  
Bradley J. Monk ◽  
Thomas J. Herzog ◽  
Stanley B. Kaye ◽  
Carolyn N. Krasner ◽  
Jan B. Vermorken ◽  
...  

PurposeThe objective of this study was to compare the efficacy and safety of trabectedin plus pegylated liposomal doxorubicin (PLD) with that of PLD alone in women with recurrent ovarian cancer after failure of first-line, platinum-based chemotherapy.Patients and MethodsWomen ≥ 18 years, stratified by performance status (0 to 1 v 2) and platinum sensitivity, were randomly assigned to receive an intravenous infusion of PLD 30 mg/m2followed by a 3-hour infusion of trabectedin 1.1 mg/m2every 3 weeks or PLD 50 mg/m2every 4 weeks. The primary end point was progression-free survival (PFS) by independent radiology assessment.ResultsPatients (N = 672) were randomly assigned to trabectedin/PLD (n = 337) or PLD (n = 335). Median PFS was 7.3 months with trabectedin/PLD v 5.8 months with PLD (hazard ratio, 0.79; 95% CI, 0.65 to 0.96; P = .0190). For platinum-sensitive patients, median PFS was 9.2 months v 7.5 months, respectively (hazard ratio, 0.73; 95% CI, 0.56 to 0.95; P = .0170). Overall response rate (ORR) was 27.6% for trabectedin/PLD v 18.8% for PLD (P = .0080); for platinum-sensitive patients, it was 35.3% v 22.6% (P = .0042), respectively. ORR, PFS, and overall survival among platinum-resistant patients were not statistically different. Neutropenia was more common with trabectedin/PLD. Grade 3 to 4 transaminase elevations were also more common with the combination but were transient and noncumulative. Hand-foot syndrome and mucositis were less frequent with trabectedin/PLD than with PLD alone.ConclusionWhen combined with PLD, trabectedin improves PFS and ORR over PLD alone with acceptable tolerance in the second-line treatment of recurrent ovarian cancer.


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