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AZD6621

Phase 1

Prostate Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: May 7, 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
RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment52
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07192614A Study to Learn How Safe AZD6621 is, How Well it Works, and How it Moves Throughout the Body Over Time, in Adult Male Participants With Metastatic Prostate CancerPHASE1 RECRUITING 52Sep 30, 2025Mar 29, 2029May 7, 202625 United States, Belgium +7
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Study Endpoints
Primary Endpoints
Number of participants with adverse events (AE), adverse events of special interest (AESI), and serious adverse events (SAE)
From time of Informed Consent to 90 days post last dose of study intervention (up to 3 years)

• Number of participants with AEs, AESIs, SAEs, including AEs leading to discontinuation of study intervention and clinically significant alterations from baseline in laboratory parameters, vital signs, ECGs and physical examination results

Number of participants with dose-limiting toxicity (DLT), as defined in the protocol (Part A only)
From first study dose to 21 to 28 days post first dose

• A DLT is a toxicity defined by the study protocol that occurs from the first dose of study intervention up to the end of the DLT evaluation period that is assessed as clearly unrelated to the primary disease or intercurrent illness.

Preliminary anti-tumour activity of AZD6621 (PSA Response Rate) (Part B only)
Up to 3 years

• Number of participants with a PSA response rate

Secondary Endpoints
Preliminary anti-tumour activity of AZD6621 (PSA Response rate) (Part A only)
Up to 3 years
Preliminary anti-tumour activity of AZD6621 (time to PSA response)
Up to 3 years
Preliminary anti-tumour activity of AZD6621 (duration of PSA response)
Up to 3 years
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Module 1 - Part A (Dose Escalation)EXPERIMENTALAZD6621 Monotherapy - Administration route 1
Module 2 - Part A (Dose Escalation)EXPERIMENTALAZD6621 Monotherapy - Administration route 2
Module 1/2 - Part B1 (Dose Expansion)EXPERIMENTALAZD6621 Monotherapy - Administration route 1 (Module 1) or administration route 2 (Module 2) at Recommended Dose for Expansion 1 (RDE1)
Module 1/2 - Part B2 (Dose Expansion)EXPERIMENTALAZD6621 Monotherapy - Administration route 1 (Module 1) or administration route 2 (Module 2) at Recommended Dose for Expansion 2 (RDE2)
Interventions
NameTypeDescription
AZD6621DRUGA T Cell-engaging Antibody that targets STEAP2, CD3, and CD8
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Eligibility Criteria
Age Range18 Years — N/A
SexMALE
Healthy VolunteersNo
Study Sites25

Inclusion Criteria 1. Capable of giving signed informed consent and complying to the study protocol. 2. Provision of signed and dated written Optional Genomics Initiative Research Information and Consent Form. 3. ≥ 18 years of age at the time of signing the informed consent form. 4. Participants wi...

Countries:United StatesBelgiumCanadaChinaJapanNetherlandsSouth KoreaSpainUnited Kingdom
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Competitive Landscape -Prostate Cancer 259 trials
CompanyTickerTrialsLead PhaseDrugs
Merck & Co., Inc.MRK7PHASE3Pembrolizumab, Enzalutamide, Ifinatamab deruxtecan, Docetaxel, Prednisone
AstraZeneca PLCAZN20PHASE3olaparib, abiraterone, Saruparib, Abiraterone, Darolutamide
Pfizer Inc.PFE12PHASE3Talazoparib with enzalutamide, PF-06821497, Docetaxel, Enzalutamide, Leuprolide Open Label
Johnson & JohnsonJNJ21PHASE3Apalutamide, Androgen Deprivation Therapy, Niraparib, Abiraterone, Prednisone
Eli Lilly and CompanyLLY9PHASE3Abemaciclib, Abiraterone, Prednisone or Prednisolone, -PNT2002, Enzalutamide
Amgen Inc.AMGN7PHASE3Xaluritamig, Abiraterone, Enzalutamide, Cabazitaxel, Docetaxel
Novartis AG Sponsored ADRNVS28PHASE3177Lu-PSMA-617, 68Ga-PSMA-11, ARDT, ADT, AAA617
Exelixis, Inc.EXEL4PHASE3Cabozantinib, Atezolizumab, Abiraterone, Enzalutamide, Prednisone
Candel Therapeutics, Inc.CADL3PHASE3Aglatimagene besadenovec + valacyclovir, aglatimagene besadenovec, valacyclovir, aglatimagene besadenovec + valacyclovir
Bristol-Myers Squibb CompanyBMY2PHASE3BMS-986365, Enzalutamide, Abiraterone, Docetaxel, Predinsone/Prednisolone
BioNTech SE Sponsored ADRBNTX1PHASE3BNT324, Docetaxel, Prednisone/prednisolone
Telix Pharmaceuticals Limited Sponsored ADRTLX3PHASE368Ga-PSMA-11, 177Lu-TLX591, Enzalutamide, Abiraterone, Docetaxel
Sanofi SA Sponsored ADRSNY2PHASE3abiraterone, Docetaxel, Cabazitaxel
Regeneron Pharmaceuticals, Inc.REGN4PHASE2REGN2810, Degarelix, Leuprolide, Docetaxel, BPX-601
Veracyte, Inc.VCYT2PHASE2Darolutamide, Zoladex, Zoladex LA, Decapeptyl sustained release, Depo-Eligard
Kyntra Bio, Inc.KYNB2PHASE2FG-3246, FOR46, Enzalutamide, Pegfilgrastim
Lantheus Holdings IncLNTH3PHASE3Undisclosed
IDEAYA Biosciences, Inc.IDYA3PHASE1IDE-161, Pembrolizumab, IDE034, IDE574, Fulvestrant
Xencor, Inc.XNCR1PHASE2vudalimab
GSK plc Sponsored ADRGSK2PHASE1GSK5471713, GSK5458514
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT07192614primaryCompletionDate: changed
LOWMay 24, 2026NCT07192614studyFirstPostDate: changed