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

Study Purpose

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.

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Interventional
Eligible Ages	18 Years and Over
Gender	All

More Inclusion & Exclusion Criteria

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.

- 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.

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.Other protocol specific criteria might apply.

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT06799533
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.	Phase 1
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	Pfizer
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	Pfizer CT.gov Call Center
Principal Investigator Affiliation	Pfizer
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Industry
Overall Status	Not yet recruiting
Countries
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Malignant Melanoma, Melanoma, Metastatic Melanoma, Solid Tumors
Study Website:	View Trial Website

Arms & Interventions

Arms

Experimental: PF-08046031 monotherapy

PF-08046031

Interventions

Drug: - PF-08046031

Given into the vein (IV; intravenous)

Contact Information

This trial has no sites locations listed at this time. If you are interested in learning more, you can contact the trial's primary contact:

Pfizer CT.gov Call Center

[email protected]

1-800-718-1021

For additional contact information, you can also visit the trial on clinicaltrials.gov.

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