A Safety Study of PF-08046045/SGN-35T in Adults With Advanced Cancers

NCT ID: NCT06120504

Last Updated: 2025-11-14

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

22 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-29

Study Completion Date

2026-01-21

Brief Summary

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This clinical trial is studying lymphoma. Lymphoma is a cancer that starts in the blood cells that fight infections. There are several types of lymphoma. This study will enroll people who have lymphoma, such as classical Hodgkin lymphoma, peripheral T-cell lymphoma including systemic anaplastic large cell lymphoma, diffuse large B-cell lymphoma, or some types of primary cutaneous lymphoma.

This clinical trial uses a drug called PF-08046045/SGN-35T. The study drug is in testing and has not been approved for sale. This is the first time PF-08046045 will be used in people. The study drug will be given as an infusion through a vein.

This study will test the safety of PF-08046045 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 PF-08046045. Part C will use the dose found in parts A and B to find out how safe PF-08046045 is and if it works to treat select lymphomas.

Detailed Description

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This is a phase 1, open-label, multicenter study designed to characterize the safety, tolerability, pharmacokinetics, pharmacodynamics, and antitumor activity of PF-08046045/SGN-35T in adults with select relapsed/refractory lymphomas. PF-08046045 is a CD30-directed antibody-drug conjugate and will be studied in patients with lymphomas expressing CD30.

Conditions

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

Keywords

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cHL ALCL PCL PTCL DLBCL CTCL Non-Hodgkin Lymphoma Seattle Genetics

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-08046045

monotherapy

Group Type EXPERIMENTAL

PF-08046045

Intervention Type DRUG

Given into the vein (IV; intravenously)

Interventions

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PF-08046045

Given into the vein (IV; intravenously)

Intervention Type DRUG

Other Intervention Names

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SGN-35T

Eligibility Criteria

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Inclusion Criteria

* Disease indication

* For dose escalation and dose optimization (Part A and Part B):

* Participants with a histologically confirmed lymphoid neoplasm (including relapsed/refractory \[R/R\] classical Hodgkin lymphoma \[cHL\], R/R peripheral T-cell lymphoma \[PTCL\], R/R systemic anaplastic large cell lymphoma \[sALCL\] , R/R mature B-cell neoplasms, and select R/R primary cutaneous lymphomas \[PCLs\]) who in the judgment of the investigator have no appropriate standard therapy available at the time of enrollment and are a candidate for PF-08046045 treatment.
* Participants must have a detectable CD30 expression level (≥1%) in tumor tissue (except cHL and ALCL where CD30 is universally expressed).
* For dose expansion (Part C)

* Participants are eligible irrespective of CD30 expression on tumor tissue.
* Participants with cHL: Participants with R/R cHL who have received at least 3 prior systemic therapies (autologous stem cell transplant \[ASCT\] 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) and meet all of the following additional criteria:

* Participants who have not received ASCT must have refused or been deemed ineligible.
* Participants must have received or been ineligible to receive an anti-PD-1 agent.
* Participants with PTCL:

* Participants with R/R PTCL (excluding R/R sALCL) who have received at least 2 prior systemic therapies or received at least 1 prior systemic therapy and there is no other available treatment that is considered appropriate by the investigator.
* Participants with R/R sALCL must have ALK status documented and must meet one of the following criteria:

* Disease recurrence or progression following at least 2 prior systemic therapies where 1 regimen included brentuximab vedotin, or
* Disease recurrence or progression following only 1 prior line of therapy which included brentuximab vedotin, cyclophosphamide, doxorubicin, and prednisone
* An Eastern Cooperative Oncology Group (ECOG) Performance Status score ≤1.
* Fluorodeoxyglucose positron emission tomography (FDG PET) avid and bidimensional measurable disease as documented by radiographic technique (spiral CT preferred) per Lugano criteria at baseline (Cheson 2014) (not applicable for subjects with PCL).

Exclusion Criteria

* Participants who have received more than 2 prior brentuximab vedotin-based lines of therapy.
* History of another malignancy within 3 years before the first dose of study intervention, or any evidence of residual disease from a previously diagnosed malignancy. Exceptions are malignancies with a negligible risk of metastasis or death.
* Active cerebral/meningeal disease related to the underlying malignancy.
* Received previous ASCT infusion \<12 weeks prior to first PF-08046045 dose.
* Participants with 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 or receiving immunosuppressive therapy as treatment for or prophylaxis against graft versus host disease.
* Participants with previous allogeneic SCT and participants considered at high risk for CMV reactivation (eg, recent prior CAR-T or bispecific antibody therapy) if they meet the following criteria: Cytomegalovirus (CMV) PCR ≥500 IU/mL, OR rising DNA levels \>5-times baseline within 1 month, OR detectable CMV PCR receiving pre-emptive therapy; prior PCR positivity that was successfully treated is acceptable provided the baseline PCR result is negative prior to the first dose of study intervention.
* Grade 2 or higher pulmonary disease unrelated to underlying malignancy, or history of Grade 2 or higher drug-induced interstitial lung disease (ILD) or immune checkpoint inhibitor (ICI)-related ILD.
* Clinically significant lung disease requiring systemic corticosteroid treatment within 6 months prior to enrollment or who are suspected to have such diseases via radiographic imaging and/or functional tests conducted during the screening period.
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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Stanford Cancer Center / Blood and Marrow Transplant Program

Palo Alto, California, United States

Site Status

University of Miami Hospital and Clinics - Lennar

Coral Gables, Florida, United States

Site Status

University of Miami Hospital and Clinics

Miami, Florida, United States

Site Status

University of Miami

Miami, Florida, United States

Site Status

MSK Basking Ridge

Basking Ridge, New Jersey, United States

Site Status

Hackensack University Medical Center

Hackensack, New Jersey, United States

Site Status

MSK Monmouth.

Middletown, New Jersey, United States

Site Status

MSK Bergen.

Montvale, New Jersey, United States

Site Status

Hackensack University Medical Center (From Road)

Paramus, New Jersey, United States

Site Status

MSK Commack.

Commack, New York, United States

Site Status

MSK Westchester.

Harrison, New York, United States

Site Status

Memorial Sloan Kettering Cancer Center-Investigational Drug Service Pharmacy

Long Island City, New York, United States

Site Status

Memorial Sloan Kettering Cancer Center - David H. Koch Center for Cancer Care (74th Street).

New York, New York, United States

Site Status

Memorial Sloan Kettering Cancer Center-Main Campus

New York, New York, United States

Site Status

MSK Nassau.

Uniondale, New York, United States

Site Status

The University of Texas MD Anderson Cancer Center

Houston, Texas, United States

Site Status

Hospital Universitario Fundacion Jimenez Diaz

Madrid, , Spain

Site Status

Countries

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Canada Denmark Italy United Kingdom United States Spain

Related Links

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https://pmiform.com/clinical-trial-info-request?StudyID=SGN35T-001

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

Other Identifiers

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SGN35T-001

Identifier Type: -

Identifier Source: org_study_id

C5811001

Identifier Type: OTHER

Identifier Source: secondary_id

2022-502390-41-00

Identifier Type: REGISTRY

Identifier Source: secondary_id