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Olaparib Continuous BD.

Phase 2

Metastatic Triple Negative Breast Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: Mar 10, 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
RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment273
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03330847To Assess Safety and Efficacy of Agents Targeting DNA Damage Repair With Olaparib Versus Olaparib Monotherapy.PHASE2 ACTIVE NOT_RECRUITING 273Mar 7, 2018Sep 4, 2026Mar 10, 2026141 United States, Belgium +13
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Study Endpoints
Primary Endpoints
Progression-free Survival Per Stratum (BICR)
Until date of first documented progression or censoring date or date of death from any cause, whichever came first (assessed up to 32 months)

Progression-free survival was defined as time from randomization until the date of objective disease progression or death, regardless of whether the patient withdrew from randomized therapy or received another anti-cancer therapy prior to progression. Progression was determined by Blinded independent central review (BICR) using Response Evaluation Criteria In Solid Tumours Version (RECIST 1.1). Patients who had not progressed or died at the time of analysis were censored at the time of the latest date of assessment from their last evaluable RECIST assessment. If patients had no evaluable visits or baseline data, the patient was censored at Study Day 1, unless death occurred within 17 weeks i.e., death within 17 weeks was relative to randomization. Here, the study patient population was stratified as follows: Breast cancer susceptible gene mutation (BRCAm) patients; non BRCAm homologous recombination repair gene mutation (HRRm) patients; non HRRm patients.

Progression-free Survival Per Stratum (Sensitivity Analysis)
Until date of first documented progression or censoring date or date of death from any cause, whichever came first (assessed up to 32 months)

Progression-free survival was defined as time from randomization until the date of objective disease progression or death, regardless of whether the patient withdrew from randomized therapy or received another anti-cancer therapy prior to progression. Progression was determined by the site Investigator. Patients who had not progressed or died at the time of analysis were censored at the time of the latest date of assessment from their last evaluable RECIST 1.1 assessment. If patients had no evaluable visits or baseline data, the patient was censored at Study Day 1, unless death occurred within 17 weeks i.e., death within 17 weeks was relative to randomization. Here, the study patient population was stratified as follows: BRCAm patients; non BRCAm HRRm patients; non HRRm patients.

Secondary Endpoints
Progression-free Survival (Per BICR)
From randomization until date of first documented progression or censoring date or date of death from any cause, whichever came first (assessed up to 32 months)
Number of Patients With Objective Response (Per BICR and Per Sensitivity Analysis)
From date of randomization until date of first documented progression or last evaluable assessment, or start of subsequent anti-cancer therapy (Whichever occurred first [assessed up to 32 months])
Objective Response Rate (ORR) (Per BICR and Per Sensitivity Analysis)
From date of randomization until date of first documented progression or last evaluable assessment, or start of subsequent anti-cancer therapy (Whichever occurred first [assessed up to 32 months])
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Olaparib monotherapyACTIVE_COMPARATORAll randomized patients will receive Olaparib monotherapy 300 mg twice daily (BD).
Olaparib+CeralasertibACTIVE_COMPARATORAll randomized patients will receive Olaparib 300 mg twice daily+Ceralasertib 160 mg once daily (OD).
Olaparib+adavosertibACTIVE_COMPARATORAll randomized patients will receive Olaparib 200 mg BD +adavosertib 150 mg BD. Following the discontinuation of adavosertib+olaparib treatment arm on 18 April 2019, patients receiving treatment with adavosertib+olaparib treatment were offered the opportunity to continue treatment on olaparib monotherapy at the approved dose (300 mg bd).
Interventions
NameTypeDescription
Olaparib Continuous (28-Day cycle) 300 mg BD.DRUGTwo (2) 150 mg olaparib tablets should be taken at the same time each day, approximately 12 hours apart with one glass of water (approximately 250 mL).
Ceralasertib 160 mg OD + olaparib continuous 300 mg BD (28-day cycle).DRUGPatients will be administered Ceralasertib OD at 160 mg from Day 1 to Day 7 (inclusive) of every 28-day cycle.
Adavosertib 150 mg BD + olaparib 200 mg BD (21-day cycle).DRUGPatients will be administered adavosertib BD at 150mg from Day 1 to Day 3 and Day 8 to Day 10.
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Eligibility Criteria
Age Range18 Years — 130 Years
SexALL
Healthy VolunteersNo
Study Sites141

Pertinent Inclusion criteria: 1. Informed consent prior to any study specific procedures. 2. Male or female ≥18 years of age. 3. Progressive cancer at the time of study entry. 4. Histologically or cytologically confirmed TNBC at initial diagnosis with evidence of metastatic disease and HER2 negativ...

Countries:United StatesBelgiumCanadaCzechiaFranceGermanyIrelandItalyNetherlandsPolandPortugalSouth KoreaSpainTaiwanUnited Kingdom
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT03330847primaryCompletionDate: changed
LOWMay 24, 2026NCT03330847studyFirstPostDate: changed