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Phase 2/3 Trial of Izalontamab Brengitecan vs Platinum-based Chemotherapy for Metastatic Urothelial Cancer With Disease Progression on or After Immunotherapy

IZABRIGHT-Bladder01: A Randomized, Open-label, Phase 2/3 Trial of Izalontamab Brengitecan Versus Platinum-based Chemotherapy for Metastatic Urothelial Cancer in Participants With Disease Progression on or After an Immunotherapy-based Treatment

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07106762
Enrollment
470
Registered
2025-08-06
Start date
2025-09-30
Completion date
2033-11-18
Last updated
2026-07-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Urothelial Cancer

Keywords

Bladder cancer

Brief summary

A Phase 2/3 Trial of Izalontamab Brengitecan vs Platinum-based Chemotherapy for Metastatic Urothelial Cancer with Disease Progression on or After Immunotherapy

Interventions

Specified dose on specified days

DRUGCisplatin

Specified dose on specified days

DRUGGemcitabine

Specified dose on specified days

DRUGCarboplatin

Specified dose on specified days

Sponsors

Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants must have histologically confirmed advanced urothelial carcinoma. * Participants must be eligible to receive platinum-based chemotherapy. * Participants must be Anti-PD-(L)1-experienced (in locally advanced or metastatic setting), either in combination with or sequential to another systemic therapy. * Participants treated only in the peri-operative setting must have relapsed within 12 months of the last dose of the treatment. * Participants must have ≥ 1 measurable lesion per RECIST v1.1. * Participants must have Eastern Cooperative Oncology Group (ECOG) Performance Status 0-1.

Exclusion criteria

* Participants must not have platinum-based chemotherapy exposure within 12 months. * Participants must not have received \>2 prior regimens irrespective of the setting. * Participants must not have prior ADC therapy targeting EGFR or HER3. * Participants must not have prior therapy with topoisomerase 1 inhibitor. * Participants must not have active, untreated brain metastases. * Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Phase 2: Recommended Phase 3 Dose (RP3D) of BMS-986507Approximately 3 months
Phase 3: Progression-Free Survival (PFS)Up to 5 yearsAssessed using Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) per blinded independent central review (BICR)
Phase 3: Overall Survival (OS)Up to 5 years

Secondary

MeasureTime frameDescription
Phase 2: Objective Response (OR)Up to 5 yearsAssessed using Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) by investigator
Phase 2: PFSUp to 5 yearsAssessed using RECIST v1.1 by investigator
Phase 2: Duration of Response (DOR)Up to 5 yearsAssessed using RECIST v1.1 by investigator
Phase 2: Time to Response (TTR)Up to 5 yearsAssessed using RECIST v1.1 by investigator
Phase 2: OSUp to 5 years
Phase 2: Iza-bren antibody-drug conjugate (ADC) concentrationUp to 5 years
Phase 2: Iza-bren total antibody concentrationUp to 5 years
Phase 2: Iza-bren Ed-04 payload concentrationUp to 5 years
Phase 2: Iza-bren observed concentration at end of infusion (Ceoi)Up to 5 years
Phase 2: Iza-bren trough observed concentration (Ctrough)Up to 5 years
Phase 3: ORUp to 5 yearsAs per RECIST v1.1 by BICR
Phase 3: DoRUp to 5 yearsAs per RECIST v1.1 by BICR
Phase 3: TTRUp to 5 yearsAs per RECIST v1.1 by BICR
Phase 3: Time until definitive deterioration in the EORTC QLQ-C30 Global Health Status/Quality of Life (GHS/QoL) scaleUp to 5 years

Countries

Argentina, Australia, Austria, Belgium, Brazil, Canada, China, Czechia, France, Germany, Ireland, Israel, Italy, Japan, Netherlands, Norway, Romania, Spain, Sweden, Switzerland, United Kingdom, United States

Contacts

CONTACTBMS Clinical Trials Contact Center www.BMSClinicalTrials.com
Clinical.Trials@bms.com855-907-3286
CONTACTFirst line of the email MUST contain NCT # and Site #.
STUDY_DIRECTORBristol-Myers Squibb

Bristol-Myers Squibb

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 30, 2026