A Study of Felmetatug Vedotin/SGN-B7H4V in Advanced Solid Tumors

NCT ID: NCT05194072

Last Updated: 2026-01-09

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

Total Enrollment

250 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-01-12

Study Completion Date

2025-05-14

Brief Summary

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The purpose of the study is to test the safety of the medicine called Felmetatug Vedotin alone and with pembrolizumab in participants with solid tumors. It will also look at the side effects of this medicine. A side effect is anything a medicine does to the body besides treating the disease.

This study is seeking for participants who either have cancer:

* that has spread in the body near where it started (locally advanced) and cannot be removed (unresectable),
* has spread through the body (metastatic), or have some cancer left over after surgery.

This study will have five parts.

* Parts A and B of the study will find out how much Felmetatug Vedotin should be given to participants.
* Part C will use the amount found in Parts A and B to find out how safe Felmetatug Vedotin is and if it works to treat solid tumor cancers.
* Part D will find out if and how much Felmetatug Vedotin can be given with pembrolizumab.
* Part E will use the amount found in Part D to find out how safe Felmetatug Vedotin with pembrolizumab is and if it works to treat triple negative breast cancer.

Detailed Description

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Conditions

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Ovarian Neoplasms Peritoneal Neoplasms Fallopian Tube Neoplasms Triple Negative Breast Neoplasms HER2 Negative Breast Neoplasms Hormone Receptor Positive Breast Neoplasms Endometrial Neoplasms Carcinoma, Non-Small-Cell Lung Cholangiocarcinoma Gallbladder Carcinoma Adenoid Cystic Carcinoma

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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Felmetatug Vedotin (Parts A, B, and C)

Felmetatug Vedotin monotherapy

Group Type EXPERIMENTAL

Felmetatug Vedotin

Intervention Type DRUG

Given into the vein (IV; intravenously)

Felmetatug Vedotin and Pembrolizumab (Parts D and E)

Felmetatug Vedotin in combination with Pembrolizumab.

Group Type EXPERIMENTAL

Felmetatug Vedotin

Intervention Type DRUG

Given into the vein (IV; intravenously)

Pembrolizumab

Intervention Type DRUG

400 mg every 6 weeks, given by IV

Interventions

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Felmetatug Vedotin

Given into the vein (IV; intravenously)

Intervention Type DRUG

Pembrolizumab

400 mg every 6 weeks, given by IV

Intervention Type DRUG

Other Intervention Names

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SGN-B7H4V PF-08046048 Keytruda

Eligibility Criteria

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Inclusion Criteria

For Parts A, B, and C:

* Participants must have one of the following histologically or cytologically confirmed locally advanced unresectable or metastatic solid tumor types:

* High-grade serous epithelial ovarian cancer, primary peritoneal cancer, or fallopian tube cancer
* HER2-negative, HR positive breast cancer
* Triple-negative breast cancer (TNBC)
* Endometrial carcinoma
* Non-small cell lung cancer (Squamous cell carcinoma \[SqCC\], Adenocarcinoma \[AC\])
* Cholangiocarcinoma or gallbladder carcinoma
* Adenoid cystic carcinoma (ACC) For Part D: Participants must have histologically or cytologically confirmed locally advanced unresectable or metastatic TNBC.

For Part E:

* Cohort E1: Participants must have histologically or cytologically confirmed locally advanced unresectable or metastatic TNBC and must have CPS≥10 by local testing
* Cohort E2: Participants must have histologically or cytologically confirmed locally advanced unresectable or metastatic TNBC and must have CPS\<10 by local testing
* Cohort E3: Participants must have triple negative breast cancer with residual disease following neoadjuvant therapy and definitive surgery

* Parts A and B: Participants must have disease that is relapsed or refractory or be intolerant to SOC therapies, and, in the judgement of the investigator, should have no appropriate SOC therapeutic option
* Part C: Participants must have disease that is relapsed or refractory or be intolerant to SOC therapies.
* Part D and E1/E2: Participants must have had no prior treatment for locally advanced unresectable or metastatic TNBC
* Part E3: Participants must have completed at least 6 cycles of neoadjuvant therapy for locally advanced unresectable or metastatic TNBC
* Tumor tissue is required for enrollment.
* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
* Measurable disease per RECIST version 1.1 at baseline (not applicable for E3 participants).

Exclusion Criteria

* History of another malignancy within 3 years before the first dose of study drug. Any evidence of residual disease from a previously diagnosed malignancy. Exceptions are malignancies with a negligible risk of metastasis or death.
* Known active central nervous system metastases. Participants with previously treated brain metastases may participate provided they:

* are clinically stable for at least 4 weeks prior to study entry after brain metastasis treatment
* have no new or enlarging brain metastases
* and are off corticosteroids prescribed for symptoms associated with brain metastases for at least 7 days prior to the first dose of study treatment.
* Carcinomatous meningitis
* Previous receipt of an MMAE-containing agent or an agent targeting B7-H4
* Pre-existing neuropathy ≥ Grade 2 per National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0
* Corneal disease or injury requiring treatment or active monitoring
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Seagen, a wholly owned subsidiary of Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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UCHealth Sue Anschutz-Rodgers Eye Center

Aurora, Colorado, United States

Site Status

University of Colorado Hospital - Anschutz Cancer Pavilion (ACP)

Aurora, Colorado, United States

Site Status

University of Colorado Hospital - Anschutz Inpatient Pavilion (AIP)

Aurora, Colorado, United States

Site Status

University of Colorado Hospital - Anschutz Outpatient Pavilion (AOP)

Aurora, Colorado, United States

Site Status

Presbyterian/St Lukes Medical Center

Denver, Colorado, United States

Site Status

AdventHealth Celebration Infusion Center

Celebration, Florida, United States

Site Status

AdventHealth Medical Group Oncology Research at Celebration

Celebration, Florida, United States

Site Status

Mayo Clinic Florida

Jacksonville, Florida, United States

Site Status

Florida Cancer Specialists

Orlando, Florida, United States

Site Status

Sarah Cannon Research Institute at Florida Cancer Specialists

Orlando, Florida, United States

Site Status

Northwestern Medical Group

Chicago, Illinois, United States

Site Status

Northwestern Memorial Hospital

Chicago, Illinois, United States

Site Status

Community Health Network, Inc.

Indianapolis, Indiana, United States

Site Status

Community Health Network, Inc.

Indianapolis, Indiana, United States

Site Status

Community Health Network, Inc.

Indianapolis, Indiana, United States

Site Status

START Midwest

Grand Rapids, Michigan, United States

Site Status

Sarah Cannon Research Institute - Pharmacy

Nashville, Tennessee, United States

Site Status

SCRI Oncology Partners

Nashville, Tennessee, United States

Site Status

The University of Texas M.D. Anderson Cancer Center

Houston, Texas, United States

Site Status

The University of Texas MD Anderson Cancer Center Investigational Pharmacy Services

Houston, Texas, United States

Site Status

South Texas Accelerated Research Therapeutics, LLC

San Antonio, Texas, United States

Site Status

START Mountain Region

West Valley City, Utah, United States

Site Status

The Ottawa Hospital Cancer Centre

Ottawa, Ontario, Canada

Site Status

Hamato-Onkologische Phase 1 Unit der Charite/Charite Research Organisation

Berlin, , Germany

Site Status

Hospital Universitari Vall d'Hebron

Barcelona, , Spain

Site Status

START Madrid-Hospital Universitario HM Sanchinarro

Madrid, , Spain

Site Status

Sarah Cannon Research Institute

London, , United Kingdom

Site Status

Countries

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United States Canada Germany Spain United Kingdom

Related Links

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https://pmiform.com/clinical-trial-info-request?StudyID=SGNB7H4V-001

To obtain contact information for a study center near you, click here.

Other Identifiers

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C5761001

Identifier Type: OTHER

Identifier Source: secondary_id

2023-503389-22-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

SGNB7H4V-001

Identifier Type: -

Identifier Source: org_study_id

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