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Saruparib

Phase 3

Metastatic Castration-Sensitive Prostate Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: May 27, 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-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment1,889
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06120491Saruparib (AZD5305) vs Placebo in Men With Metastatic Castration-Sensitive Prostate Cancer Receiving Physician's Choice New Hormonal AgentsPHASE3 ACTIVE NOT_RECRUITING 1,889Nov 21, 2023Apr 30, 2031May 27, 2026322 United States, Australia +22
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Study Endpoints
Primary Endpoints
Radiographic Progression-Free Survival (rPFS)
Up to approximately 50 months

rPFS is defined as the time from randomisation to radiographic progression, as assessed by the investigator per RECIST 1.1 (soft tissue) and/or PCWG3 criteria (bone), or, death due to any cause.

Secondary Endpoints
Overall Survival (OS)
Up to approximately 90 months
Second Progression-Free Survival (PFS2)
Up to approximately 50 months
Time to First Subsequent Therapy or Death (TFST)
Up to approximately 50 months
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm 1: Saruparib (AZD5305) + Physician's Choice NHAEXPERIMENTALSaruparib (AZD5305) + physician's choice NHA (Abiraterone, Darolutamide, or Enzalutamide)
Arm 2: Placebo + Physician's Choice NHAPLACEBO_COMPARATORPlacebo + physician's choice NHA (Abiraterone, Darolutamide, or Enzalutamide)
Interventions
NameTypeDescription
SaruparibDRUGOral
PlaceboDRUGOral
Abiraterone AcetateDRUGOral
DarolutamideDRUGOral
EnzalutamideDRUGOral
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Eligibility Criteria
Age Range18 Years — 130 Years
SexMALE
Healthy VolunteersNo
Study Sites322

Inclusion Criteria: * Male ≥ 18 years of age. * Histologically documented prostate adenocarcinoma which is de novo or recurrent and castration-sensitive. Participants with pathologic features of small cell, neuroendocrine, sarcomatoid, spindle cell, or signet cell histology are not eligible. * Meta...

Countries:United StatesAustraliaAustriaBelgiumBrazilCanadaChileChinaFranceGermanyHungaryIndiaItalyJapanMalaysiaNetherlandsPeruPolandSouth KoreaSpainTaiwanThailandTurkey (Türkiye)United Kingdom
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Recent Changes (Last 90 Days)
MEDIUMMay 28, 2026NCT06120491Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMMay 28, 2026NCT06120491Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWMay 26, 2026NCT06120491primaryCompletionDate: changed
LOWMay 24, 2026NCT06120491studyFirstPostDate: changed