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olaparib

Phase 3

Ovarian Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: May 13, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindACTIVE_CONTROLLEDBiomarker
Total Trials4
Total Enrollment730
FDA Designations
No designations recorded
Clinical Trials (4)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04884360D9319C00001- 1L OC Mono Global RCTPHASE3 ACTIVE NOT_RECRUITING 366May 31, 2021Jul 27, 2027Mar 2, 202689 Chile, China +8
NCT04421963Roll Over StudY for Patients Who Have Completed a Previous Oncology Study With OlaparibPHASE3 ACTIVE NOT_RECRUITING 185Aug 4, 2020Apr 6, 2027Apr 16, 2026107 United States, Belgium +21
NCT01081951Study to Compare the Efficacy and Safety of Olaparib When Given in Combination With Carboplatin and Paclitaxel, Compared With Carboplatin and Paclitaxel in Patients With Advanced Ovarian CancerPHASE2 ACTIVE NOT_RECRUITING 162Feb 4, 2010Dec 31, 2026May 13, 202653 United States, Australia +11
NCT02121990Dose-Escalation Study of Intraperitoneal (IP) Cisplatin, IV/IP Paclitaxel, IV Bevacizumab, and Oral Olaparib for Newly Diagnosed Ovarian, Primary Peritoneal, and Fallopian Tube CancerPHASE1 COMPLETED 17Apr 21, 2014Aug 19, 2020Aug 21, 20205 United States
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Study Endpoints
Primary Endpoints
Superiority of olaparib as maintenance treatment relative to placebo by assessment of PFS in participants with Stage III/IV ovarian cancer with a BRCAwt HRD positive tumour and a CR/PR following standard 1st line platinum based chemotherapy treatment.
Approximately 3 years

PFS is defined as time from randomisation until progression per RECIST 1.1 as assessed by the investigator at the local site, or death due to any cause.

Superiority of olaparib as maintenance treatment relative to placebo by assessment of PFS in participants with Stage III/IV ovarian cancer with a BRCAwt tumour and a CR/PR following standard 1st line platinum-based chemotherapy treatment.
Approximately 3 years

PFS is defined as time from randomisation until progression per RECIST 1.1 as assessed by the investigator at the local site, or death due to any cause.

Safety follow up
Baseline up to approximately 10 years

Serious adverse events and adverse events of special interest reported until 30 days after the last dose of study drug.

Progression Free Survival (PFS)
Radiologic scans performed at weeks 9 and 18 (+/-1 week) and every 12 weeks thereafter relative to the date of randomisation until the primary analysis (approximately 20 months)

PFS (based on independent central review) was defined as the time from randomisation until objective disease progression as defined by Response Evaluation Criteria In Solid Tumours (RECIST) v1.1 (≥20% increase in the sum of the diameters of target lesions from minimum, clinically significant progression in non-target lesions or the presence of a new lesion) or death (by any cause in the absence of progression).

maximum tolerated dose (MTD)
1 year

This is a dose-finding Phase 1 study, which employs a 3+3 design, and aims to identify the MTD of a combination of traditional and novel agents for front-line therapy of optimally debulked ovarian cancer.

Secondary Endpoints
Superiority of olaparib as maintenance treatment relative to placebo by assessment of OS in participants with Stage III/IV ovarian cancer with a BRCAwt HRD positive tumour and a CR/PR following standard first line platinum based chemotherapy treatment.
Approximately 4 years
Superiority of olaparib as maintenance treatment relative to placebo by assessment of OS in participants with Stage III/IV ovarian cancer with a BRCAwt tumour and a CR/PR following standard first-line platinum-based chemotherapy treatment.
Approximately 4 years
Superiority of olaparib as maintenance treatment relative to placebo by assessment of TFST in participants with a BRCAwt HRD positive tumour and a CR or PR following standard first-line platinum-based chemotherapy treatment.
Approximately 4 years
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Group A: Olaparib tablets 300 mg oral twice daily (n=238).EXPERIMENTALParticipants in Group A will receive olaparib tablets taken orally at a dose of 300 mg twice daily for up to 2 years or until objective radiological disease progression as per RECIST 1.1 as assessed by the investigator, whichever is earlier, and as long as in the investigator's opinion they are benefiting from treatment and do not meet any other discontinuation criteria.
Group B: Placebo tablets 300 mg oral twice daily (n=118)PLACEBO_COMPARATORParticipants in Group B will receive matching placebo tablets taken orally at a dose of 300 mg twice daily for up to 2 years or until objective radiological disease progression as per RECIST 1.1 as assessed by the investigator, whichever is earlier, and as long as in the investigator's opinion they are benefiting from treatment and do not meet any other discontinuation criteria.
OlaparibEXPERIMENTALTreatment
1EXPERIMENTALOlaparib is available as a film-coated tablet containing 150 mg or 100 mg of olaparib. Subjects will be administered study treatment orally at a dose recommended by Investigator. Full dose: 300 mg twice daily (bid) or Reduced doses: 200 mg twice daily (bid) or 100 mg twice daily (bid). The planned dose of 300 mg bid will be made up of two x 150 mg tablets twice daily, with 100 mg tablets used to manage dose reductions.
2ACTIVE_COMPARATORpaclitaxel iv and carboplatin iv
Cisplatin, Paclitaxel, bevacizumab & olaparibEXPERIMENTALAll treatments will be given in the outpatient setting. A cycle is 21 days. The sequence of infusions on Day 1 will be IV paclitaxel (135 mg/m2), then IV bevacizumab (15 mg/kg, beginning Cycle 2). On Day 2 patients will receive IP cisplatin (75 mg/m2). Patients will be given twice-daily treatment with oral olaparib in cycles 1-6 for 7 consecutive days, starting on Day 2 (Days 2-8). IP paclitaxel (60 mg/m2) will be given on Day 8. Sequential cohorts of 3 patients will receive escalating doses of olaparib (50mg BID, 100mg BID, 200mg BID).
Interventions
NameTypeDescription
OlaparibDRUGOlaparib tablets 300 mg oral twice daily
Matching placeboOTHERMatching placebo tablets taken orally at a dose of 300 mg twice daily
paclitaxelDRUG175mg/m2 iv for 6 cycles (18 weeks) day 1 of 21 day cycle
carboplatinDRUGAUC6 iv for 6 cycles (18 weeks) day 1 of 21 day cycle
Drug: carboplatinDRUGAUC4 iv for up to 6 cycles (18 weeks)
Paclitaxel,DRUG -
BevacizumabDRUG -
CisplatinDRUG -
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Eligibility Criteria
Age Range18 Years — N/A
SexFEMALE
Healthy VolunteersNo
Study Sites89

Key Inclusion Criteria: 1. Participants must be ≥18 years at the time of (pre-)screening 2. Histological and staging criteria:Female participants who must have histologically newly diagnosed high-grade serous or high-grade endometrioid ovarian cancer, fallopian tube cancer, or primary peritoneal ca...

Countries:ChileChinaColombiaIndiaPeruRussiaSouth AfricaTurkey (Türkiye)UkraineVietnamUnited StatesBelgiumBulgariaCanadaCzechiaDenmarkFinlandFranceGermanyHungaryIsraelItalyPolandPortugalSloveniaSouth KoreaSpainSwedenTaiwanUnited KingdomAustraliaJapanNetherlandsPanama
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Competitive Landscape -Ovarian Cancer 180 trials
CompanyTickerTrialsLead PhaseDrugs
Merck & Co., Inc.MRK5PHASE3Pembrolizumab, Paclitaxel, Bevacizumab, Docetaxel, Sacituzumab tirumotecan
AstraZeneca PLCAZN19PHASE3Olaparib, Bevacizumab, Durvalumab, Carboplatin+Paclitaxel, AZD5335
Eli Lilly and CompanyLLY8PHASE3Sofetabart Mipitecan, Paclitaxel, Topotecan, Gemcitabine, Pegylated liposomal doxorubicin
AbbVie, Inc.ABBV13PHASE3Mirvetuximab soravtansine plus Bevacizumab, Bevacizumab, Mirvetuximab soravtansine, Carboplatin, Mirvetuximab Soravtansine
GSK plc Sponsored ADRGSK4PHASE3Niraparib, Dostarlimab, Mocertatug rezetecan, Paclitaxel, Pegylated liposomal doxorubicin
Bristol-Myers Squibb CompanyBMY4PHASE3Rucaparib, Nivolumab, BMS-986340, BMS-936558-01, Docetaxel
Pfizer Inc.PFE5PHASE3Avelumab, Lorlatanib, Talazoparib, Pemetrexed, Axitinib
Genmab A/S Sponsored ADRGMAB5PHASE3Rina-S, Paclitaxel, Topotecan, Pegylated liposomal doxorubicin, Gemcitabine
Corcept Therapeutics Incorporated.CORT2PHASE3Nab-paclitaxel /m^2, Relacorilant once daily, Bevacizumab /kg
Verastem, Inc.VSTM4PHASE3avutometinib, Defactinib, Pegylated liposomal doxorubicin, Paclitaxel, Letrozole
Imunon, Inc.IMNN3PHASE3IMNN-001, Paclitaxel, Carboplatin, Olaparib, Niraparib
Zentalis Pharmaceuticals, Inc.ZNTL3PHASE3Azenosertib, azenosertib, Carboplatin, Pegylated liposomal doxorubicin, Paclitaxel
Incyte CorporationINCY2PHASE3INCB123667
Genelux Corp.GNLX1PHASE3olvimulogene nanivacirepvec, Platinum chemotherapy: carboplatin or cisplatin, Non-platinum chemotherapy: Physician's Choice of gemcitabine, taxane or pegylated liposomal doxorubicin, Bevacizumab
Regeneron Pharmaceuticals, Inc.REGN4PHASE2Ubamatamab, Bevacizumab, Cemiplimab, Fianlimab, PLD
Novartis AG Sponsored ADRNVS4PHASE2Dabrafenib, Trametinib, KFA115, pembrolizumab, Tulmimetostat
BeOne Medicines Ltd. Sponsored ADRONC2PHASE3Pamiparib, BG-68501, Fulvestrant, BGB-43395
IQVIA Holdings IncIQV1PHASE3Oregovomab, Paclitaxel, Carboplatin
Exelixis, Inc.EXEL2PHASE2Cabozantinib, cabozantinib, atezolizumab
Xencor, Inc.XNCR3PHASE2vudalimab, XmAb541, XmAb808
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT04884360primaryCompletionDate: changed
LOWMay 26, 2026NCT01081951primaryCompletionDate: changed
LOWMay 26, 2026NCT04421963primaryCompletionDate: changed
LOWMay 24, 2026NCT04884360studyFirstPostDate: changed
LOWMay 24, 2026NCT01081951studyFirstPostDate: changed
LOWMay 24, 2026NCT04421963studyFirstPostDate: changed