A Study to Learn About the Study Medicine Called PF-07799933 in People With Advanced Solid Tumors With BRAF Alterations.

Official record

Identifier

NCT05355701

Recruiting locations

countries

United StatesCanadaIsrael

Interventions studied

PF-07799933binimetinibcetuximabmidazolamfluorouracilleucovorinoxaliplatin

Lead sponsor

Pfizer

Target enrolment

267 participants

Study type

INTERVENTIONAL

Phase

Phase 1

Status

Recruiting

First posted

May 2, 2022

Last updated on the registry

Jul 31, 2026

Age

16 Years

Sex

ALL

Study contact

The official record lists a study contact. Contact details are published there and are intentionally not copied to this page.

Eligibility criteria

Reproduced verbatim from the official record. Eligibility is decided by the study team, never by this page.

This study is seeking participants who meet the following key eligibility criteria:

Inclusion Criteria:

* Diagnosis of advanced/metastatic solid tumor including primary brain tumor.
* Qualifying BRAF alteration (V600 or non-V600 Class II/Class III BRAF alteration), in tumor tissue and/or blood (ie circulating tumor deoxyribonucleic acid \[DNA\], or ctDNA).
* Disease progressed during/following last prior treatment and no satisfactory alternative treatment options (Part 1, Part 2 (doublet), and Part 3 (cohorts 2, 3, 6, 7)).
* Tumor specific cohorts (melanoma, colorectal cancer) must have received specific prior approved therapies
* Part 3 (Cohort 1) (BRAF V600 mutant melanoma): Prior BRAF V600 inhibitor therapy required, prior MEK inhibitor therapy required, and immune checkpoint inhibitor therapy required.
* Part 3 (Cohort 4) (BRAF V600E CRC): Minimum of 2 cycles of prior 5-FU based chemotherapy required. No prior BRAF inhibitor/EGFR inhibitor allowed. Participants with MSI-H/dMMR mCRC should receive prior immune checkpoint inhibitor therapy.
* Part 3 (Cohort 5) (BRAF V600E CRC): No more than 2 cycles of prior 5-FU based chemotherapy allowed. No prior BRAF inhibitor/EGFR inhibitors allowed. Participants with MSI-H/dMMR mCRC should receive prior immune checkpoint inhibitor therapy.

Exclusion Criteria:

* Brain metastasis larger than 4 cm
* Systemic anti-cancer therapy or small molecule therapeutics ongoing at the start of study treatment.
* History or current evidence of retinal vein occlusion (RVO) or current risk factors for RVO; history of retinal degenerative disease.
* Concurrent neuromuscular disorder associated with elevated creatine kinase (CK).