A Study of SBT6050 Alone and in Combination With PD-1 Inhibitors in Subjects With Advanced HER2 Expressing Solid Tumors

NCT ID: NCT04460456

Last Updated: 2022-06-30

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

UNKNOWN

Clinical Phase

PHASE1

Total Enrollment

58 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-07-27

Study Completion Date

2022-12-31

Brief Summary

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A first-in-human (FIH) study using SBT6050 and SBT6050 in combination with PD-1 inhibitors in HER2 expressing or amplified advanced malignancies

Detailed Description

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This study has 5 parts. Part 1 will evaluate the safety, tolerability, and activity of escalating doses of SBT6050 to estimate the maximum tolerated dose (MTD) and determine the dose recommended for Part 2. Part 2 of the study will further evaluate SBT6050 in select HER2 expressing or amplified advanced malignancies.

Part 3 will evaluate the safety, tolerability, and activity of escalating doses of SBT6050 in combination with pembrolizumab to estimate the MTD and determine the dose recommended for Part 4. Part 4 of the study will further evaluate SBT6050 in combination with pembrolizumab in select HER2 expressing or amplified advanced malignancies.

Part 5 of the study will evaluate the safety, tolerability, and activity of SBT6050 in combination with cemiplimab in select HER2 expressing or amplified advanced malignancies.

Conditions

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HER2 Positive Solid Tumors

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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SBT6050 Monotherapy

Escalating doses of SBT6050 in Part 1 followed by expansion in Part 2 at the recommended dose determined in Part 1.

Group Type EXPERIMENTAL

SBT6050

Intervention Type DRUG

Escalating doses of SBT6050 in Part 1 and recommended dose in Part 2

SBT6050 and pembrolizumab

Escalating doses of SBT6050 in combination with pembrolizumab in Part 3 followed by expansion in Part 4 at the recommended dose determined in Part 3.

Group Type EXPERIMENTAL

SBT6050

Intervention Type DRUG

Escalating doses of SBT6050 in Part 1 and recommended dose in Part 2

pembrolizumab

Intervention Type DRUG

400 mg IV

SBT6050 and cemiplimab

SBT6050 in combination with cemiplimab in Part 5 at the recommended dose determined in Parts 1 and 3.

Group Type EXPERIMENTAL

SBT6050

Intervention Type DRUG

Escalating doses of SBT6050 in Part 1 and recommended dose in Part 2

Cemiplimab

Intervention Type DRUG

350 mg IV

Interventions

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SBT6050

Escalating doses of SBT6050 in Part 1 and recommended dose in Part 2

Intervention Type DRUG

pembrolizumab

400 mg IV

Intervention Type DRUG

Cemiplimab

350 mg IV

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Locally advanced or metastatic HER2-expressing (IHC 2+ or 3+) or amplified solid tumor
* Subjects must have received prior therapies known to confer clinical benefit (unless ineligible or refused to receive)
* Measurable disease per RECIST 1.1
* Tumor lesion amenable for biopsy or able to provide tissue from biopsy within last 6 months
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
* Adequate hematologic, hepatic, and cardiac function

Exclusion Criteria

* History of allergic reactions to certain components of SBT6050 or similar drugs
* Untreated brain metastases
* Active autoimmune disease or a documented history of autoimmune disease or syndrome
* Human immunodeficiency virus infection, active hepatitis B infection or hepatitis C infection
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Silverback Therapeutics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Naomi Hunder, MD

Role: STUDY_DIRECTOR

Silverback Therapeutics

Locations

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Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Duke University

Durham, North Carolina, United States

Site Status

University of Pittsburgh Medical Center Hillman Cancer Center

Pittsburgh, Pennsylvania, United States

Site Status

Sarah Cannon Research Institute/Tennessee Oncology

Nashville, Tennessee, United States

Site Status

MD Anderson Cancer Center

Houston, Texas, United States

Site Status

The START Center for Cancer Care

San Antonio, Texas, United States

Site Status

Macquarie University Hospital Clinical Trials Unit

Sydney, New South Wales, Australia

Site Status

Peter MacCallum Cancer Centre

Melbourne, Victoria, Australia

Site Status

Breast Cancer Research Centre - WA

Nedlands, Western Australia, Australia

Site Status

Seoul National University Hospital

Seoul, , South Korea

Site Status

Asan Medical Center

Seoul, , South Korea

Site Status

Samsung Medical Center

Seoul, , South Korea

Site Status

Countries

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United States Australia South Korea

Other Identifiers

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SBT6050-101

Identifier Type: -

Identifier Source: org_study_id

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