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Risvutatug rezetecan

Phase 3

Neoplasms, Lung | ADC | Oncology |GSK plc|Trials Updated: Oct 19, 2026

Risvutatug rezetecan development status

Highest phase Phase 3
Registered trials 6 across 3 sponsors since Mar 2022

Risvutatug rezetecan target and mechanism

ModalityADC

Also known as GSK5764227, Ris-Rez, Risvutatug rezetecan (Ris-Rez), HS-20093

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDDMC
Total Trials8
Total Enrollment2,641

FDA Designations

No designations recorded

Risvutatug rezetecan clinical trials

Risvutatug rezetecan · 8 trials · 7 indications

Phase 3 2Phase 1 5Early Phase 1 1
NCT07802704A Study of Risvutatug Rezetecan in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC) [EMBOLD Prostate-302]Neoplasms, Prostate
RECRUITING684 Analytics
NCT07099898A Study of GSK5764227 in Participants With Relapsed Small Cell Lung Cancer (SCLC) [EMBOLD SCLC-301]Neoplasms, Lung
RECRUITING420 Analytics
PHASE3RECRUITING
A Study of Risvutatug Rezetecan in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC) [EMBOLD Prostate-302]
Neoplasms, ProstateUnlock trial analytics
PHASE3RECRUITING
A Study of GSK5764227 in Participants With Relapsed Small Cell Lung Cancer (SCLC) [EMBOLD SCLC-301]
Neoplasms, LungUnlock trial analytics

Study Endpoints

Primary Endpoints

Radiographic Progression-Free Survival (rPFS) per PCWG3 by BICR
Up to approximately 169 weeks

rPFS is defined as time from randomization to the first documented radiographic disease progression, per Prostate cancer clinical trials working group 3 (PCWG3) as assessed by Blinded Independent Central Review (BICR) or death due to any cause, whichever occurs first.

Overall Survival (OS)
Up to approximately 169 weeks

OS is defined as the time from randomization to date of death by any cause.

Phase 1 and Phase 2 Number of participants with Adverse events (AEs), Serious Adverse Events (SAEs) and Adverse events of special interest (AESIs)
Up to approximately 143 weeks
Phase 1 and Phase 2: Number of participants with AEs leading to dose modifications including study intervention discontinuation
Up to approximately 130 weeks
Phase 2: Number of participants with AEs leading to dose modifications or study intervention discontinuation
Up to approximately 130 weeks
Phase 1 and Phase 2: Number of participants with changes in safety parameters
Up to approximately 143 weeks
Phase 1: Number of participants with Dose Limiting Toxicities (DLT)
Up to 21 days
Phase 1 and Phase 2: Number of participants with a change from baseline in vital signs
Baseline (Day -1) and up to approximately 143 weeks

Number of participants will be assessed

Phase 1 and Phase 2: Number of participants with a change from baseline in body weight
Baseline (Day -1) and up to approximately 143 weeks

Number of participants will be assessed

Phase 1 and Phase 2: Number of participants with a change from baseline in laboratory parameters (hematology, clinical chemistry and urinalysis)
Baseline (Day -1) and up to approximately 143 weeks

Number of participants will be assessed

Phase 1 and Phase 2: Number of participants with a change from baseline in cardiac function [Electrocardiogram (ECG) and Echocardiogram (ECHO)]
Baseline (Day -1) and up to approximately 143 weeks

Number of participants will be assessed

Phase 1 and Phase 2: Number of participants with a change from baseline in Eastern Cooperative Oncology Group (ECOG) performance status
Baseline (Day -1) and up to approximately 143 weeks

Number of participants will be assessed

Phase 2:Confirmed Objective Response Rate (cORR)
Up to approximately 143 weeks

cORR is defined as the proportion of participants who have confirmed Complete Response (CR) or Partial Response (PR), assessed by the investigator according to Response Evaluation Criteria in Solid Tumors (RECIST) version (v) 1.1

Cohort 1: Progression free survival rate at Week18 (PFS18)
At Week 18

PFS is defined as the time from the date of randomization until the date of documented disease progression or death due to any cause, whichever occurs first, as assessed by the investigator according to Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)

Cohort 1 & 2: Confirmed Objective Response Rate (ORR)
Up to approximately 98 weeks

Confirmed ORR is defined as the proportion of participants who have achieved a confirmed Complete Response (CR) or Partial Response PR as assessed by investigator, according to RECIST 1.1

Number of participants with adverse events (AEs), Serious AEs (SAEs), AE of special interest (AESIs) and AEs leading to dose modifications
Up to approximately 31 weeks
Number of participants with AEs, SAEs, AESIs, and AEs leading to dose modifications by severity
Up to approximately 31 weeks
Number of participants with dose limiting toxicities (DLTs)
Up to approximately 31 weeks
Number of participants with clinically significant changes in Vital Signs, Body Weight, Laboratory Tests [Hematology, Clinical Chemistry, Urinalysis], Cardiac Function [ECG], and Eastern Cooperative Oncology Group (ECOG) performance status
Up to approximately 31 weeks
Confirmed Objective Response Rate (ORR)
Up to approximately 22 months

Confirmed ORR is defined as the proportion of participants who have achieved best overall response (BOR) of confirmed complete response (CR) or partial response (PR) as assessed by investigator, according to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)

Phase 1a: Number of participants with Adverse Events (AEs)
Up to approximately 28 months
Phase 1a: Number of participants with Dose Limiting Toxicities (DLTs)
Up to 21 days
Phase 1a: Number of participants with AEs, serious adverse events (SAEs) and adverse events of special interest (AESIs) by severity
Up to approximately 30 months
Phase 1a: Number of participants with AEs leading to dose modifications
Up to approximately 28 months
Phase 1a: Number of participants with changes in vital signs, body weight, laboratory tests, electrocardiogram (ECG) and Eastern Cooperative Oncology Group (ECOG) performance status
Up to approximately 28 months
Phase 1b: Confirmed Objective Response Rate (cORR)
Up to approximately 27 months

cORR is defined as the proportion of participants who have confirmed Complete response (CR) or Partial response (PR), assessed by the investigator according to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST V1.1) criteria or other imaging criteria for defined tumor types.

Phase 0: Total, Cleaved, and Unbound GSK5757810 Payload Concentration in Tumor Tissue
Intraoperatively

The total, cleaved, and unbound GSK5757810 payload concentration in Gd enhancing and Gd non-enhancing tumor tissue collected during Phase 0 surgery from participants with rGBM, and Gd enhancing tumor tissue collected during Phase 0 surgery from participants with brain metastases, will be determined.

Phase 1: Incidence of Adverse Events as Assessed by CTCAE v5.0
Date of first infusion until 90-days post last infusion

Incidence of the following will be summarized: AEs, SAEs, and AEs of Special Interest (AESIs); treatment discontinuations, dose interruptions, and dose reductions due to AEs; changes in vital signs, body weight, laboratory tests, ECG, and ECOG performance status

Secondary Endpoints

Time to Pain Progression (TTPP)
Up to approximately 169 weeks
rPFS by Investigator assessment
Up to approximately 169 weeks
Confirmed Objective Response Rate (cORR)
Up to approximately 169 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Risvutatug rezetecan (Ris-Rez)EXPERIMENTALParticipants will receive Risvutatug rezetecan (Ris-Rez).
Standard of CareACTIVE_COMPARATORParticipants will receive physician's choice of best supportive/standard of care (BSC), with or without androgen receptor pathway inhibitors (ARPI) Enzalutamide, Abiraterone (with Prednisone or Prednisolone).
TopotecanACTIVE_COMPARATOR -
Phase 1: Dose escalationEXPERIMENTAL -
Phase 2: Dose expansionEXPERIMENTAL -
Cohort 1A (Ris-Rez)EXPERIMENTAL -
Cohort 1B [Ris-Rez + Granulocyte-Colony Stimulating Factor (G-CSF)]EXPERIMENTAL -
Cohort 2 (Ris-Rez)EXPERIMENTAL -
Metastatic colorectal cancer (mCRC) cohort A1EXPERIMENTAL -
Metastatic colorectal cancer (mCRC) cohort A2EXPERIMENTAL -
Metastatic castration-resistant prostate cancer (mCRPC) cohort BEXPERIMENTAL -
CRC-A: Risvutatug Rezetecan (Dose 1)EXPERIMENTAL -
CRC-A: Risvutatug Rezetecan (Dose 3)EXPERIMENTAL -
CRC-B: Risvutatug Rezetecan (Dose 6)EXPERIMENTAL -
CRC-B: Risvutatug Rezetecan (Dose 7)EXPERIMENTAL -
PDAC-A: Risvutatug Rezetecan (Dose 1/Dose 2 and/or Dose 4/Dose 5)EXPERIMENTAL -
PDAC-B: Risvutatug Rezetecan (Dose 4/Dose 5 and/or Dose 1/Dose 2)EXPERIMENTAL -
Phase 1a- Dose escalation- MonotherapyEXPERIMENTAL -
Phase 1a- Dose escalation- Combination therapyEXPERIMENTAL -
Phase 1b- Dose optimisation- MonotherapyEXPERIMENTAL -
Phase 1b- Dose optimisation- Combination therapyEXPERIMENTAL -
Phase 1b- Dose expansion- MonotherapyEXPERIMENTAL -
Phase 1b- Dose expansion- Combination therapyEXPERIMENTAL -
rGBM and Brain MetsEXPERIMENTALGroup A will include participants with recurrent WHO Grade 4 glioma (rGBM) and group B will include participants with brain metastases (brain mets)

Interventions

NameTypeDescription
Risvutatug rezetecan (Ris-Rez)BIOLOGICALRisvutatug rezetecan (Ris-Rez) will be administered.
EnzalutamideDRUGEnzalutamide will be administered.
AbirateroneDRUGAbiraterone will be administered.
PrednisoneDRUGPrednisone will be administered along with Abiraterone.
PrednisoloneDRUGPrednisolone will be administered along with Abiraterone.
TopotecanDRUGTopotecan will be administered
Risvutatug rezetecanBIOLOGICALRisvutatug rezetecan will be administered
IvonescimabBIOLOGICALIvonescimab will be administered
Ris-RezBIOLOGICALRis-Rez will be administered
G-CSFBIOLOGICALG-CSF will be administered
GSK5764227DRUGParticipants will receive GSK5764227.
BevacizumabDRUGParticipants will receive bevacizumab.
FluorouracilDRUGParticipants will receive fluorouracil.
leucovorinDRUGParticipants will receive leucovorin.
CisplatinDRUGCisplatin will be administered
CarboplatinDRUGCarboplatin will be administered
AtezolizumabBIOLOGICALAtezolizumab will be administered
PembrolizumabBIOLOGICALPembrolizumab will be administered
DurvalumabBIOLOGICALDurvalumab will be administered
CetuximabBIOLOGICALCetuximab will be administered
TarlatamabBIOLOGICALTarlatamab will be administered
DostarlimabBIOLOGICALDostarlimab will be administered
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Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites6

Inclusion Criteria: * Participants ≥18 years of age * Has histologically or cytologically confirmed adenocarcinoma of the prostate. * Has an Eastern Cooperative Oncology Group (ECOG) PS of 0 or 1, with no deterioration in the 2 weeks before randomization. * Has a life expectancy of at least 4 month...

Countries:AustraliaCanadaJapanSouth KoreaUnited StatesArgentinaBrazilBulgariaFinlandFranceGermanyGreeceHungaryIrelandIsraelItalyMexicoPolandPortugalRomaniaSpainSwedenSwitzerlandTurkey (Türkiye)United KingdomBelgiumNetherlandsNorwayPanamaHong KongTaiwan
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Recent Changes (Last 90 Days)

HIGHOct 19, 2026NCT06885034Enrollment: 451 → 346
HIGHOct 19, 2026NCT06885034Enrollment: 451 → 346
HIGHOct 19, 2026NCT06885034Enrollment: 451 → 346
LOWOct 2, 2026NCT07802704lastUpdatePostDate: changed
LOWOct 2, 2026NCT07802704lastUpdatePostDate: changed
HIGHOct 1, 2026NCT07602777Enrollment: 113 → 64
HIGHOct 1, 2026NCT07602777Enrollment: 113 → 64
LOWSep 30, 2026NCT07802704Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 30, 2026NCT07802704Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 28, 2026NCT07099898lastUpdatePostDate: changed
LOWSep 28, 2026NCT07099898lastUpdatePostDate: changed
MEDIUMSep 25, 2026NCT07277270Enrollment: 84 → 83
MEDIUMSep 25, 2026NCT07099898lastUpdatePostDate: changed
MEDIUMSep 25, 2026NCT07277270Enrollment: 84 → 83
MEDIUMSep 25, 2026NCT07099898lastUpdatePostDate: changed
LOWSep 23, 2026NCT07602855Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 23, 2026NCT07602855Status: NOT_YET_RECRUITING → RECRUITING
MEDIUMSep 10, 2026NCT07602855primaryCompletionDate: changed
MEDIUMSep 10, 2026NCT07602855primaryCompletionDate: changed
LOWSep 3, 2026NCT07802704NEW_TRIAL: changed

Frequently asked questions about Risvutatug rezetecan

What is risvutatug rezetecan?

Risvutatug rezetecan is an investigational antibody-drug conjugate (ADC) being developed by GSK plc for the treatment of cancer. It is being studied across multiple tumor types, including prostate cancer, lung cancer, sarcoma, and other advanced solid tumors. It is not yet approved and remains in clinical development.

What is risvutatug rezetecan used for?

Risvutatug rezetecan is being studied for several cancer indications, including metastatic castration-resistant prostate cancer (mCRPC), lung neoplasms, sarcoma, glioblastoma, gastrointestinal neoplasms, and other advanced solid tumors. It is an investigational therapy and has not been approved for any indication.

Who makes risvutatug rezetecan?

Risvutatug rezetecan is developed by GSK plc, which trades under the ticker GSK. GSK is running the clinical development program, which includes studies in prostate cancer, sarcoma, lung cancer, and other advanced solid tumors.

What phase is risvutatug rezetecan in?

Risvutatug rezetecan is in Phase 1 clinical development, with a Phase 3 trial also underway in metastatic castration-resistant prostate cancer. It is an investigational drug and has not received FDA approval. The program includes both Phase 1 and Phase 3 studies across multiple cancer types.

What clinical trials is risvutatug rezetecan in?

Risvutatug rezetecan is being evaluated in several recruiting trials: NCT07802704 (Phase 3, mCRPC), NCT07602855 (Phase 1, with ivonescimab in advanced solid tumors), NCT07602777 (Phase 1, advanced sarcomas), and NCT07277270 (Phase 1, with standard of care or other agents in advanced solid tumors). All are currently recruiting.

Is risvutatug rezetecan the same as GSK5764227?

Yes, risvutatug rezetecan is also known as GSK5764227 and Ris-Rez. These names refer to the same investigational antibody-drug conjugate developed by GSK plc. The alternative designations appear in trial listings and company communications for the same compound.