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GB-4362

Phase 1

Advanced Urothelial Cancer | Small molecule | Oncology |Generate Biomedicines, Inc.|Trials Updated: Oct 13, 2026

GB-4362 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Mar 2026

GB-4362 target and mechanism

Molecular targetMMAE
Target classNeutralizer
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment37

FDA Designations

FAST_TRACK

GB-4362 clinical trials

GB-4362 · 1 trial · 2 indications

Phase 1 1
NCT07484022Study of GB-4362 With Enfortumab Vedotin and Pembrolizumab for Advanced Urothelial CancerAdvanced Urothelial Cancer
RECRUITING37 Analytics
PHASE1RECRUITING
Study of GB-4362 With Enfortumab Vedotin and Pembrolizumab for Advanced Urothelial Cancer
Advanced Urothelial CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of AEs and SAEs
From first dose of GB-4362 through 18 weeks after the last dose of GB-4362 (or prior to initiation of subsequent anti-cancer therapy, whichever occurs first).

Secondary Endpoints

Pharmacokinetics of GB-4362
From first dose of GB-4362 through 18 weeks after the last dose of GB-4362 (or prior to initiation of subsequent anti-cancer therapy, whichever occurs first).
Reduction of Free MMAE Levels
From first dose of GB-4362 through 18 weeks after the last dose of GB-4362 (or prior to initiation of subsequent anti-cancer therapy, whichever occurs first).
Immunogenicity of GB-4362
From first dose of GB-4362 through 18 weeks after the last dose of GB-4362 (or prior to initiation of subsequent anti-cancer therapy, whichever occurs first).
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
GB-4362 in Combination With Enfortumab Vedotin and PembrolizumabEXPERIMENTAL -

Interventions

NameTypeDescription
GB-4362DRUGGB-4362 is an investigational monoclonal antibody
enfortumab vedotin (EV)DRUGEnfortumab vedotin is an antibody-drug conjugate targeting Nectin-4 that delivers the cytotoxic payload monomethyl auristatin E (MMAE).
PembrolizumabDRUGPembrolizumab is a programmed death-1 (PD-1) immune checkpoint inhibitor administered as standard-of-care therapy for advanced urothelial cancer.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites10

Inclusion Criteria * Planned to initiate, or (for dose escalation only) already receiving, standard-of-care treatment with enfortumab vedotin (EV) (starting dose 1.25 mg/kg) in combination with pembrolizumab for locally advanced or metastatic urothelial cancer. * Age ≥18 years. * ECOG Performance S...

Countries:United States
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Recent Changes (Last 90 Days)

LOWOct 13, 2026NCT07484022startDate: changed
LOWOct 13, 2026NCT07484022startDate: changed

Frequently asked questions about GB-4362

What is GB-4362 used for in advanced urothelial cancer?

GB-4362 is an investigational small molecule being studied for the treatment of advanced urothelial cancer, including metastatic urothelial carcinoma. It is currently in Phase 1 clinical development and has not been approved by the FDA. The drug is being evaluated in combination with enfortumab vedotin and pembrolizumab in a clinical trial.

What does GB-4362 target?

GB-4362 targets MMAE, a cytotoxic agent commonly used in antibody-drug conjugates. As a neutralizer, GB-4362 is designed to counteract the effects of MMAE, which may help manage toxicity associated with MMAE-based therapies. This mechanism is being studied in the context of advanced urothelial cancer treatment.

Who makes GB-4362?

GB-4362 is being developed by Generate Biomedicines, Inc., a biopharmaceutical company. The company is publicly traded under the ticker symbol GENB. Generate Biomedicines is conducting clinical trials to evaluate the safety and efficacy of GB-4362 in patients with advanced urothelial cancer.

What phase is GB-4362 in?

GB-4362 is currently in Phase 1 clinical development. It is an investigational drug and has not received FDA approval. The drug has been granted Fast Track designation by the FDA, which is intended to expedite the development and review of therapies for serious conditions with unmet medical needs.

What clinical trials is GB-4362 in?

GB-4362 is being studied in a Phase 1 clinical trial with the identifier NCT07484022. This trial is titled 'Study of GB-4362 With Enfortumab Vedotin and Pembrolizumab for Advanced Urothelial Cancer' and is currently recruiting participants in the United States. The trial is an open-label, uncontrolled study with an estimated enrollment of 37 patients.

Is GB-4362 the same as enfortumab vedotin?

No, GB-4362 is not the same as enfortumab vedotin. GB-4362 is a small molecule that neutralizes MMAE, while enfortumab vedotin is an antibody-drug conjugate that delivers MMAE to cancer cells. In the ongoing clinical trial, GB-4362 is being tested in combination with enfortumab vedotin and pembrolizumab for advanced urothelial cancer.