A Study of BGB-B455 in Adults With Advanced or Metastatic Solid Tumors

NCT ID: NCT06803680

Last Updated: 2025-11-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-18

Study Completion Date

2027-10-30

Brief Summary

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The goal of this clinical trial is to learn if BGB-B455 can treat advanced or metastatic solid tumors expressing claudin 6 (CLDN6), a protein that is found on some tumors.

The main questions it aims to answer are:

* What is the recommended dosing for BGB-B455?
* What medical problems do participants have when taking BGB-B455?

The study has two parts:

* Phase 1a: dose escalation and safety expansion
* Phase 1b: dose expansion

Detailed Description

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Claudin proteins are cell proteins that can play an important role in how cancer starts and progresses. Because of its preferential expression in tumors compared to normal tissues, CLDN6 is an ideal tumor antigen to target for treatment. BGB-B455 is a bispecific antibody (BsAbs) that targets CLDN6 on tumor cells and the CD3 receptor on T cells, which may provide a CLDN6-dependent antitumor immune response in a more tolerable manner without undue systemic toxicity.

This new study will check how safe and helpful this potential anticancer drug is. In addition, this study will explore the recommended dosing level for BGB-B455. This drug will be tested by itself or in combination with investigator-selected chemotherapy in participants with selected solid tumors expressing the CLDN6 protein.

This study is an open label study, meaning that both you and your study doctor will know what study drug/treatment you are given. This study has two parts:

* Phase 1a consists of a dose escalation part where increasing amounts of the study treatment are given to different dose cohorts, and a safety expansion part that will enroll additional participants at selected doses for further assessments.
* Phase 1b (dose expansion) will enroll participants at the best dose found in Phase 1a to see if it helps people with certain solid tumors.

Conditions

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Advanced Solid Tumor Metastatic Solid Tumor

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Phase 1a: Dose Escalation and Safety Expansion

Sequential cohorts of increasing dose levels of BGB-B455 will be evaluated as monotherapy.

Group Type EXPERIMENTAL

BGB-B455

Intervention Type DRUG

Planned doses administered on specified days per protocol.

Phase 1b: Dose Expansion

Recommended Dose(s) for Expansion (RDFE\[s\]) of BGB-B455 determined from Phase 1a as monotherapy or in combination with investigator-selected chemotherapy will be evaluated for selected indications based on emerging data.

Group Type EXPERIMENTAL

BGB-B455

Intervention Type DRUG

Planned doses administered on specified days per protocol.

Chemotherapy

Intervention Type DRUG

Administered in accordance with relevant local guidelines and/or prescribing information.

Interventions

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BGB-B455

Planned doses administered on specified days per protocol.

Intervention Type DRUG

Chemotherapy

Administered in accordance with relevant local guidelines and/or prescribing information.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Histologically or cytologically confirmed advanced or metastatic, and unresectable solid tumors who have previously received standard systemic therapy for advanced or metastatic disease or for whom treatment is not available or not tolerated.
* Agreement for collection of formalin-fixed paraffin-embedded (FFPE) tumor tissue for central CLDN6 testing and other biomarker assessments.
* Tumor CLDN6 expression (CDLN6+) by central immunohistochemistry testing is required for certain cohorts.
* ≥ 1 measurable lesion as assessed by RECIST v1.1.
* Stable Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.
* Adequate organ function.

Exclusion Criteria

* Prior systemic anticancer therapy, including chemotherapy, immunotherapy (eg, interleukin, interferon, thymosin), targeted therapy, and antibody drug conjugates (ADCs) that are standard or investigational agents (including herbal medicine or Chinese \[or other country\] patent medicines, ≤ 14 days or 5 half-lives (whichever is shorter) before the first dose of study drug(s).
* Palliative radiation treatment or other locoregional therapies ≤ 14 days before the first dose of study drug(s).
* Live vaccine ≤ 28 days before the first dose of study drug(s). Vaccines for COVID-19 are allowed except for any live vaccine that may become available. Seasonal vaccines for influenza are generally inactivated vaccines and are allowed. Intranasal vaccines are live vaccines and are not allowed.
* Any major surgical procedure ≤ 28 days before the first dose of study drug(s).
* History of prior ≥ Grade 3 cytokine release syndrome (CRS).
* Participants with toxicities (because of prior anticancer therapy) that have not recovered to baseline or stabilized, except for adverse events not considered a likely safety risk (eg, alopecia, neuropathy, and specific laboratory abnormalities).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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BeiGene

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Study Director

Role: STUDY_DIRECTOR

BeiGene

Locations

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Adventhealth

Celebration, Florida, United States

Site Status RECRUITING

Florida Cancer Specialists and Research Institute

Lake Mary, Florida, United States

Site Status RECRUITING

Sidney Kimmel Cancer Center

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

Avera Cancer Institute

Sioux Falls, South Dakota, United States

Site Status RECRUITING

Next Oncology

Austin, Texas, United States

Site Status RECRUITING

Fred Hutchinson Cancer Research Center

Seattle, Washington, United States

Site Status RECRUITING

Blacktown Cancer and Haematology Centre

Blacktown, New South Wales, Australia

Site Status RECRUITING

Liverpool Hospital

Liverpool, New South Wales, Australia

Site Status RECRUITING

Mater Cancer Care Centre

South Brisbane, Queensland, Australia

Site Status RECRUITING

Beijing Cancer Hospital

Beijing, Beijing Municipality, China

Site Status RECRUITING

Sun Yat Sen University Cancer Center

Guangzhou, Guangdong, China

Site Status RECRUITING

The First Affiliated Hospital of Nanchang University Branch Donghu

Nanchang, Jiangxi, China

Site Status RECRUITING

Fudan University Shanghai Cancer Centerpudong

Shanghai, Shanghai Municipality, China

Site Status RECRUITING

Shanxi Provincial Cancer Hospital

Taiyuan, Shanxi, China

Site Status RECRUITING

Countries

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United States Australia China

Central Contacts

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Study Director

Role: CONTACT

1.877.828.5568

Other Identifiers

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2024-512931-64-00

Identifier Type: CTIS

Identifier Source: secondary_id

CTR20251939

Identifier Type: REGISTRY

Identifier Source: secondary_id

BGB-B455-101

Identifier Type: -

Identifier Source: org_study_id

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