Skip to content

A Study to Learn About the Study Medicine Called PF-08046031 in Advanced Melanoma and Other Solid Tumors

AN OPEN-LABEL PHASE 1 STUDY TO INVESTIGATE PF-08046031 IN ADULTS WITH ADVANCED MELANOMA AND OTHER SOLID TUMORS

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06799533
Enrollment
11
Registered
2025-01-29
Start date
2025-05-01
Completion date
2026-02-23
Last updated
2026-03-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malignant Melanoma, Melanoma, Metastatic Melanoma, Solid Tumors

Keywords

Solid tumors, Other Solid tumors

Brief summary

This study will test the safety of a drug called PF-08046031 in participants with melanoma and other solid tumors that have no current approved treatment or have spread through the body. 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. The study will have 3 parts. Part A and B of the study will find out how much PF-08046031 should be given to participants. Part C will use the information from Parts A and B to see if PF-08046031 is safe and if it works to treat solid tumor cancers.

Interventions

DRUGPF-08046031

Given into the vein (IV; intravenous)

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Masking description

None (Open Label)

Intervention model description

single group assignment

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants in Part 1 (dose escalation) must have histologically- or cytologically-confirmed metastatic or unresectable cutaneous melanoma. They must have progressive disease following at least 1 prior anti programmed death-1 (PD 1)/programmed death-ligand 1 (PD L1) immunotherapy containing regimen (either as monotherapy, or in combination with other checkpoint inhibitors or other therapies) and should have no appropriate standard therapy available at the time of enrollment in the judgment of the investigator. * Participants in Part 2 (dose optimization) must have histologically- or cytologically-confirmed metastatic or unresectable cutaneous melanoma. They must have progressive disease following at least 1 prior anti PD 1/PD L1 immunotherapy containing regimen (either as monotherapy, or in combination with other checkpoint inhibitors or other therapies) but not more than 2 total prior lines of systemic therapy and should have no appropriate standard therapy available at the time of enrollment in the judgment of the investigator. * For Part 3 (dose expansion): Participants must have histologically- or cytologically confirmed metastatic or unresectable solid malignancy from 1 of the following tumor types: cutaneous melanoma, NSCLC, HNSCC, esophageal cancer. Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1 Measurable disease per RECIST v1.1 at baseline • Participants who have refused available standard of care therapies are not eligible.

Exclusion criteria

• Active cerebral/meningeal disease related to the underlying malignancy. Previous exposure to CD228-targeted therapy, vedotin or an MMAE-containing agent, or any taxane containing regimen for advanced disease. Melanoma subtypes including uveal, and mucosal are excluded. Chemotherapy, definitive radiotherapy, biologics, and/or other antitumor treatment with immunotherapy that is not completed 4 weeks prior to first dose of study intervention, or within 2 weeks prior to first dose of study intervention if the underlying disease has progressed on treatment • Grade 3 or higher pulmonary disease unrelated to underlying malignancy. Previous history of non-infectious interstitial lung disease (ILD) or pneumonitis that required steroids, current ILD or pneumonitis, or suspected ILD or pneumonitis that cannot be ruled out by imaging at screening. Other protocol specific criteria might apply.

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with adverse events (AEs)through 30 days after the last study treatment; approximately 6 monthsAny untoward medical occurrence in a clinical investigational participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment.
Number of participants with laboratory abnormalitiesthrough 30days after the last study treatment; approximately 6 months
Number of participants with dose limiting toxicitiesup to 28 days

Secondary

MeasureTime frameDescription
number of participants with antidrug antibodiesthrough 30 days after the last study treatment; approximately 6 monthsTo be summarized using descriptive statistics
Pharmacokinetic (PK) parameter - Area under the curve (AUC)Through 30 days after the last study treatment; approximately 6 monthsTo be summarized using descriptive statistics
PK parameter - Maximum Concentration (Cmax)Through 30 days after the last study treatment; approximately 6 monthsTo be summarized using descriptive statistics
PK parameter - Time to maximum concentration (Tmax)Through 30 days after the last study treatment; approximately 6 monthsTo be summarized using descriptive statistics
PK parameter - Apparent terminal half-life (t1/2)Through 30 days after the last study treatment; approximately 6 monthsTo be summarized using descriptive statistics
PK parameter - Trough concentration (Ctrough)Through 30 days after the last study treatment; approximately 6 monthsTo be summarized using descriptive statistics
Objective response rate (ORR)Up to approximately 1 yearThe proportion of participants with a complete response (CR) or partial response (PR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1) as assessed by the investigato
Duration of response (DOR)Up to approximately 1 yearThe time from start of the first documentation of objective tumor response (CR or PR) to the first documentation of progressive disease (PD) (based on radiographic assessments per RECIST v1.1) or death due to any cause
Progression-free survival (PFS)Up to approximately 1 yearThe time from the start of study treatment to the first documentation of PD (per RECIST v1.1 as assessed by the investigator) or death due to any cause
Overall survival (OS)Approximately 2 yearsThe time from the start of study treatment to death due to any cause

Countries

France, Spain, Sweden, United Kingdom, United States

Contacts

STUDY_DIRECTORPfizer CT.gov Call Center

Pfizer

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026