A Safety Study of PF-08046044/SGN-35C in Adults With Advanced Cancers

NCT ID: NCT06254495

Last Updated: 2025-12-09

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

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

57 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-05-28

Study Completion Date

2029-04-18

Brief Summary

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This clinical trial is studying lymphoma. Lymphoma is a cancer that starts in the blood cells that fight infection. There are several types of lymphoma. This study will enroll people who have classical Hodgkin lymphoma (cHL), peripheral T cell lymphoma (PTCL), or diffuse large B cell lymphoma (DLBCL).

This clinical trial uses a drug called PF-08046044/SGN-35C . The study drug is in testing and has not been approved for sale. This is the first time SGN -35C will be used in people.

This study will test the safety of SGN-35C in participants with lymphoma. It will also study the side effects of this drug. A side effect is anything a drug does to the body besides treating the disease.

This study will have three parts. Parts A and B of the study will find out the best dose and dosing schedule for SGN-35C. Part C will use the dose found in parts A and B to find out how safe SGN-35C is and if it works to treat select lymphomas.

Detailed Description

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Conditions

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Hodgkin Disease Lymphoma, T-Cell, Peripheral Lymphoma, Large B-Cell, Diffuse Lymphoma, Large-Cell, Anaplastic

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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PF-08046044/SGN-35C

PF-08046044/SGN-35C Monotherapy

Group Type EXPERIMENTAL

PF-08046044/SGN-35C

Intervention Type DRUG

Given into the vein (IV; intravenously)

Interventions

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PF-08046044/SGN-35C

Given into the vein (IV; intravenously)

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Tumor type
* For dose escalation and back fill and dose optimization (Parts A and B):

* Participants with a histologically confirmed lymphoid neoplasm who in the judgement of the investigator have no appropriate standard therapy available at the time of enrollment and are a candidate for PF-08046044/SGN- 35C treatment. Eligible subtypes and treatment status are as follows:

* Participants with relapsed/refractory (R/R) cHL: should have received at least 3 prior systemic therapies including autologous stem cell transplant \[ASCT\] (ASCT and the associated high-dose chemotherapy prior to ASCT are considered to be 1 prior line, along with post-transplant consolidation if progression has not occurred between transplant and start of consolidation) or an anti-PD-1 agent (or refused/were ineligible); or 2 prior systemic therapies if, according to the investigator, no other appropriate standard treatment is available.
* Participants with R/R PTCL (excluding systematic anaplastic large cell lymphoma \[sALCL\]): should have received at least 2 prior systemic therapies, or 1 prior systemic therapy if, according to the investigator, no other appropriate standard treatment is available.
* Participants with R/R sALCL: should have received at least 2 prior systemic therapies, including 1 brentuximab vedotin-containing regimen, or 1 prior line of systemic therapy including brentuximab vedotin, cyclophosphamide, doxorubicin, and prednisone.
* Participants with R/R DLBCL: should have received at least 2 prior systemic therapies, including ASCT and chimeric antigen receptor (CAR) T-cell therapy, or were ineligible, or refused.
* Participants with PTCL and DLBCL must have a detectable cluster of differentiation 30 (CD30) expression level (≥1%) in tumor tissue from the most recent biopsy obtained at or after relapse by local testing.
* For dose expansion (Part C):

* Participants are eligible irrespective of CD30 expression on tumor tissue; however, participants must provide tumor tissue for evaluation of CD30 expression from the most recent biopsy obtained at or after relapse.
* Participants with cHL, PTCL, sALCL, and DLBCL: Eligible subtypes are the same as defined in Parts A and B
* If activated, the biology cohort may enroll the populations included in Parts A, B, and C.
* Eastern Cooperative Oncology Group (ECOG) Performance Status score of ≤1
* Fluorodeoxyglucose positron emission tomography (FDG-PET) avid and bidimensional measurable disease as documented by radiographic technique (spiral computed tomography \[CT\] preferred)

Exclusion Criteria

* Previous exposure to any antibody-drug conjugates (ADCs) with camptothecin-based payload.
* History of another malignancy within 3 years before the first dose of study drug, or any evidence of residual disease from a previously diagnosed malignancy. Exceptions are malignancies with a negligible risk of metastasis or death
* Active central nervous system (CNS) disease related to the underlying malignancy. Participants with a history of CNS disease related to the underlying malignancy are allowed if prior CNS disease has been treated and the participant is clinically stable (defined as not currently receiving steroid treatment for symptoms related to cerebral/meningeal disease and with no ongoing related AE).
* Received previous ASCT infusion \<12 weeks prior to the first dose of SGN-35C.
* Previous allogeneic stem cell transplant (SCT) if they meet any of the following criteria:

* \<100 days from allogeneic SCT. Participants ≥100 days from allogeneic SCT who are stable without immunosuppressive therapy for at least 12 weeks are permitted.
* Active acute or chronic graft-versus-host disease (GVHD) or receiving immunosuppressive therapy as treatment for or prophylaxis against GVHD.
* History of clinically significant GI bleeding, intestinal obstruction, or GI perforation within 6 months of initiation of trial treatment.
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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City of Hope (City of Hope National Medical Center, City Of Hope Medical Center)

Duarte, California, United States

Site Status

IP Address: City of Hope Investigational Drug Services(IDS)

Duarte, California, United States

Site Status

University of California, San Francisco Medical Center

San Francisco, California, United States

Site Status

Sylvester Comprehensive Cancer Center- The Lennar Foundation Medical Center

Coral Gables, Florida, United States

Site Status

University of Miami Hospital and Clinics - Deerfield Beach

Deerfield Beach, Florida, United States

Site Status

Sylvester Comprehensive Cancer Center - Hollywood

Hollywood, Florida, United States

Site Status

University Of Miami Hospital and Clinics/Sylvester Comprehensive Cancer Center

Miami, Florida, United States

Site Status

University Of Miami Hospitals And Clinics

Miami, Florida, United States

Site Status

Sylvester Comprehensive Cancer Center - Kendall

Miami, Florida, United States

Site Status

The University of Kansas Cancer Center, Investigational Drug Services

Fairway, Kansas, United States

Site Status

University of Kansas Clinical Research Center

Fairway, Kansas, United States

Site Status

The University of Kansas Hospital Cambridge North Tower A

Kansas City, Kansas, United States

Site Status

The University of Kansas Hospital

Kansas City, Kansas, United States

Site Status

The University of Kansas Medical Center Medical Office Building

Kansas City, Kansas, United States

Site Status

The University of Kansas Cancer Center - Overland Park

Overland Park, Kansas, United States

Site Status

The University of Kansas Cancer Center - Indian Creek Campus

Overland Park, Kansas, United States

Site Status

University of Kansas Cancer Center

Westwood, Kansas, United States

Site Status

The University of Kansas Cancer Center - Lee's Summit

Lee's Summit, Missouri, United States

Site Status

Nebraska Medicine - Bellevue Medical Center

Bellevue, Nebraska, United States

Site Status

Nebraska Medical Center

Omaha, Nebraska, United States

Site Status

Nebraska Medicine - Village Pointe

Omaha, Nebraska, United States

Site Status

University of Nebraska Medical Center

Omaha, Nebraska, United States

Site Status

Robert Wood Johnson University Hospital

New Brunswick, New Jersey, United States

Site Status

Rutgers Cancer Institute of New Jersey

New Brunswick, New Jersey, United States

Site Status

South Texas Accelerated Research Therapeutics, LLC

San Antonio, Texas, United States

Site Status

Fred Hutchinson Cancer Research Center | Seattle, WA

Seattle, Washington, United States

Site Status

University of Washington

Seattle, Washington, United States

Site Status

Rigshospitalet University Hospital of Copenhagen

Copenhagen Ø, , Denmark

Site Status

Institut Gustave Roussy

Villejuif, , France

Site Status

Centro Ricerche Cliniche di Verona s.r.l.

Verona, , Italy

Site Status

Hospital Universitari Vall d'Hebron

Barcelona, , Spain

Site Status

The Royal Marsden NHS Foundation Trust (RM)

London, , United Kingdom

Site Status

The Christie NHS Foundation Trust

Manchester, , United Kingdom

Site Status

Countries

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United States Denmark France Italy Spain United Kingdom

Related Links

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https://pmiform.com/clinical-trial-info-request?StudyID=SGN35C-001

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

Other Identifiers

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C5801001

Identifier Type: OTHER

Identifier Source: secondary_id

2023-505813-26-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

SGN35C-001

Identifier Type: -

Identifier Source: org_study_id

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