A First-in-human Study Using BDC-1001 as a Single Agent and in Combination With Nivolumab in Advanced HER2-Expressing Solid Tumors

NCT ID: NCT04278144

Last Updated: 2025-09-15

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

TERMINATED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

175 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-02-24

Study Completion Date

2025-02-14

Brief Summary

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A first-in-human study using BDC-1001 as a single agent and in combination with nivolumab in HER2 expressing advanced malignancies

Detailed Description

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This study has four parts. Part 1 is a dose escalation of BDC-1001 as a single agent to determine the maximum tolerated dose (MTD), recommended Phase 2 dose (RP2D), or maximum protocol dose (MPD) recommended for Part 3. In Part 3, the selected dose will be administered as monotherapy to patients with selected advanced malignancies. Part 2 is a dose escalation of BDC-1001 in combination with nivolumab to determine the maximum tolerated dose (MTD), recommended Phase 2 dose (RP2D), or maximum protocol dose (MPD) recommended for Part 4. In Part 4, the selected dose will be administered in combination with nivolumab to patients with selected advanced malignancies.

Bolt amended the protocol to transition any subjects still receiving BDC-1001 to continue receiving BDC-1001 in the Maintenance Phase. Subjects remaining on BDC-1001 will continue to receive BDC-1001 until a criterion for discontinuation has been met.

Conditions

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HER2-positive Solid Tumors HER2-positive Breast Cancer HER2-positive Colorectal Cancer HER2-positive Gastroesophageal Cancer HER2-positive Endometrial Cancer

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Multiple ascending dose and dose-expansion of BDC-1001 administered as a single agent or in combination with nivolumab.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Single agent BDC-1001

Escalating doses followed by expansion targeting HER2-expressing advanced malignancies

Group Type EXPERIMENTAL

BDC-1001

Intervention Type DRUG

Immune stimulating antibody conjugate (ISAC), consisting of an anti-HER2 monoclonal antibody conjugated to a TLR 7/8 dual agonist

Combination BDC-1001 plus nivolumab

Escalating doses followed by expansion targeting HER2-expressing advanced malignancies

Group Type EXPERIMENTAL

BDC-1001

Intervention Type DRUG

Immune stimulating antibody conjugate (ISAC), consisting of an anti-HER2 monoclonal antibody conjugated to a TLR 7/8 dual agonist

Nivolumab

Intervention Type DRUG

Programmed death receptor-1 (PD 1)-blocking antibody

Interventions

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BDC-1001

Immune stimulating antibody conjugate (ISAC), consisting of an anti-HER2 monoclonal antibody conjugated to a TLR 7/8 dual agonist

Intervention Type DRUG

Nivolumab

Programmed death receptor-1 (PD 1)-blocking antibody

Intervention Type DRUG

Other Intervention Names

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Opdivo

Eligibility Criteria

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Inclusion Criteria

* Patient must have an advanced solid tumor with documented HER2-protein expression or gene amplification for which approved therapies have been exhausted or are not clinically indicated.
* Measurable disease as determined by RECIST v.1.1.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
* Tumor tissue (archival or collected prior to the study start) available for exploratory biomarker evaluation.

Exclusion Criteria

* History of severe hypersensitivity to any ingredient of the study drug(s), including trastuzumab or other monoclonal antibody.
* Previous treatment with a TLR 7, TLR 8 or a TLR 7/8 agonist.
* Impaired cardiac function or history of clinically significant cardiac disease
* Human Immunodeficiency virus (HIV) infection, active hepatitis B infection, or hepatitis C infection.
* Active SARS-CoV-2 infection
* Untreated central nervous system (CNS), epidural tumor or metastasis, or brain metastasis.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Bristol-Myers Squibb

INDUSTRY

Sponsor Role collaborator

Bolt Biotherapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Bolt Clinical Development

Role: STUDY_DIRECTOR

Bolt Biotherapeutics

Locations

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Stanford University

Palo Alto, California, United States

Site Status

Georgetown University Medical Center

Washington D.C., District of Columbia, United States

Site Status

The University of Chicago Medical Center

Chicago, Illinois, United States

Site Status

Dana-Farber Cancer Institute

Boston, Massachusetts, United States

Site Status

START Midwest

Grand Rapids, Michigan, United States

Site Status

Memorial Sloan-Kettering Cancer Center

New York, New York, United States

Site Status

Levine Cancer Institute

Charlotte, North Carolina, United States

Site Status

Stephenson Cancer Center

Oklahoma City, Oklahoma, United States

Site Status

The University of Texas MD Anderson Cancer Center

Houston, Texas, United States

Site Status

South Texas Accelerated Research Therapeutics

San Antonio, Texas, United States

Site Status

Virginia Cancer Specialists

Fairfax, Virginia, United States

Site Status

Institut Bergonie

Bordeaux, , France

Site Status

Institut Paoli Calmettes

Marseille, , France

Site Status

Institut Gustave Roussy

Villejuif, , France

Site Status

Samsung Medical Center

Seoul, Gangnam-gu, South Korea

Site Status

Seoul National University Bundang Hospital

Seongnam-si, Gyeonggi-do, South Korea

Site Status

Asan Medical Center

Seoul, Songpa-gu, South Korea

Site Status

Hospital del Mar

Barcelona, Catalonia, Spain

Site Status

Hospital Universitario Vall d'Hebron

Barcelona, Catalonia, Spain

Site Status

Hospital Universitario Ramón y Cajal

Madrid, Madrid, Spain

Site Status

Hospital Universitario 12 de Octubre

Madrid, Madrid, Spain

Site Status

Countries

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United States France South Korea Spain

Other Identifiers

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BBI-20201001

Identifier Type: -

Identifier Source: org_study_id

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