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Recruiting Phase 1 NCT05538130

NCT05538130 A Study to Learn About the Study Medicine Called PF-07799544 as Monotherapy or in Combination in People With Advanced Solid Tumors

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Clinical Trial Summary
NCT ID NCT05538130
Status Recruiting
Phase Phase 1
Sponsor Pfizer
Condition Melanoma
Study Type INTERVENTIONAL
Enrollment 124 participants
Start Date 2022-11-30
Primary Completion 2027-08-02

Eligibility & Interventions

Sex All sexes
Min Age 16 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
PF-07799544PF-07799933

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 124 participants in total. It began in 2022-11-30 with a primary completion date of 2027-08-02.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The purpose of this clinical trial is to learn the safety and effects of the study medicine (PF-07799544) alone or in combination as a potential cancer treatment for adults with advanced solid tumors. The study will be conducted in two parts: PF-07799544 as a single agent (Phase 1a) and PF-07799544 in combination with another study medicine called PF-07799933 (Phase 1b). Phase 1a is no longer open for enrollment. In Phase1b (noted as "this study"), we are seeking participants who have: * a solid tumor which is metastatic or recurrent (excluding colorectal cancer) * tumor with the mutation (abnormal gene) called "BRAF V600" * received required prior treatment for cancer per cohort assigned. All participants in this study will receive both study medicines. Both study medicines are tablets that are taken by mouth at home twice a day. Participants will receive study medicines until their cancer is no longer responding, unacceptable side effects, or 2 years. Participants may continue to receive study therapy beyond 2 years. We will examine the experiences of people receiving the study medicines. This will help us determine if the study medicines are safe and effective.

Eligibility Criteria

Phase 1b Inclusion Criteria: * Diagnosis of advanced/metastatic solid tumor (excluding colorectal cancer) * Measurable disease by RECIST version 1.1 * Evidence of a BRAF V600 mutation * Prior therapy per tumor cohort * Adequate organ function per protocol Phase 1b Exclusion Criteria: * Other active malignancy within 3 years * Presence of leptomeningeal disease * History or current evidence of retinal vein occlusion (RVO) or history of retinal degenerative disease * Concurrent neuromuscular disorder associated with elevated creatine kinase (CK) * Active gastrointestinal disease as defined per protocol * History of interstitial lung disease as defined per protocol

Contact & Investigator

Central Contact

Pfizer CT.gov Call Center

✉ ClinicalTrials.gov_Inquiries@pfizer.com

📞 1-800-718-1021

Principal Investigator

Pfizer CT.gov Call Center

STUDY DIRECTOR

Pfizer

Frequently Asked Questions

Who can join the NCT05538130 clinical trial?

This trial is open to participants of all sexes, aged 16 Years or older, studying Melanoma. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT05538130 trial and what does that mean for participants?

Phase 1 trials are the first stage of human testing. The primary goal is to assess safety and determine appropriate dosage levels. Participants are closely monitored. These trials typically involve a small number of volunteers.

Is NCT05538130 currently recruiting?

Yes, NCT05538130 is actively recruiting participants. Contact the research team at ClinicalTrials.gov_Inquiries@pfizer.com for enrollment information.

Where is the NCT05538130 trial being conducted?

This trial is being conducted at Birmingham, United States, Birmingham, United States, Birmingham, United States, Fayetteville, United States and 11 additional locations.

Who is sponsoring the NCT05538130 clinical trial?

NCT05538130 is sponsored by Pfizer. The principal investigator is Pfizer CT.gov Call Center at Pfizer. The trial plans to enroll 124 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology