Recent Updates
Recently added Catalysts

PF-07799933

Phase 1

Melanoma | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Sep 1, 2026

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLED
Total Trials1
Total Enrollment267

FDA Designations

No designations recorded

Clinical trial landscape

PF-07799933 · 1 trial · 5 indications

Phase 1 1
NCT05355701A Study to Learn About the Study Medicine Called PF-07799933 in People With Advanced Solid Tumors With BRAF Alterations.Melanoma
ACTIVE NOT_RECRUITING103 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study to Learn About the Study Medicine Called PF-07799933 in People With Advanced Solid Tumors With BRAF Alterations.
MelanomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with dose limiting toxicities (DLTs) (Part 1 and Part 2)
Cycle 1 (21 days)

DLTs will be evaluated during the first cycle (21 days) as both a single agent or in combination with binimetinib or cetuximab

Number of participants with treatment-emergent adverse events (AEs) (Part 1 and Part 2)
Baseline to 28 days after last dose of study medication

AEs as characterized by type, frequency, severity, timing, seriousness, and relationship to study therapy

Number of participants with clinically significant change from baseline in laboratory abnormalities (Part 1 and Part 2)
Baseline to 28 days after last dose of study treatment

Laboratory abnormalities as characterized by type, frequency, severity, and timing

Number of participants with clinically significant change from baseline in vital sign abnormalities (Part 1 and Part 2)
Baseline to 28 days after last dose of study treatment

Vital sign abnormalities as characterized by type, frequency, severity, and timing

Dose interruptions due to AEs (Part 1 and Part 2)
Baseline to 2 years

Incidence of dose interruptions due to AEs

Dose dose modifications due to AEs (Part 1 and Part 2)
Baseline to 2 years

Incidence of dose modifications due to AEs

Discontinuations due to AEs (Part 1 and Part 2)
Baseline to 2 years

Incidence of discontinuations due to AEs

Overall response rate (ORR) (Part 3)
Baseline to 2 years

Response will be evaluated via radiographical tumor assessments by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1)

Number of participants with clinically significant physical exam abnormalities (Part 1 and Part 2)
Baseline to 28 days after last dose of study treatment

Physical exam abnormalities as as graded by National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0

Secondary Endpoints

Part 1 and Part 2: ORR
Baseline to 2 years
Part 1/2/3: Intracranial response
Baseline to 2 years
Part 1 and Part 2: Duration of response
Baseline to 2 years
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Monotherapy dose escalation (Part 1)EXPERIMENTALParticipants will receive PF-07799933
Combination dose escalation (Part 2)EXPERIMENTALParticipants will receive PF-07799933 in combination with binimetinib or cetuximab
Dose expansion (Part 3) - Tumor and mutation specific Cohort 1EXPERIMENTALParticipants will receive PF-07799933
Dose expansion (Part 3) - Tumor and mutation specific Cohort 2EXPERIMENTALParticipants will receive PF-07799933
Dose expansion (Part 3) - Tumor and mutation specific Cohort 3EXPERIMENTALParticipants will receive PF-07799933
Dose expansion (Part 3) - Tumor and mutation specific Cohort 4EXPERIMENTALParticipants will receive PF-07799933 in combination with cetuximab
Dose expansion (Part 3) - Tumor and mutation specific Cohort 5EXPERIMENTALParticipants will receive PF-07799933 in combination with cetuximab and mFOLFOX6 regimen
Dose expansion (Part 3) - Tumor and mutation specific Cohort 6EXPERIMENTALParticipants will receive PF-07799933
Dose expansion (Part 3) - Tumor and mutation specific Cohort 7EXPERIMENTALParticipants will receive PF-07799933

Interventions

NameTypeDescription
PF-07799933DRUGTablet
binimetinibDRUGTablet
cetuximabBIOLOGICALInjection for intravenous use
midazolamDRUGsyrup
fluorouracilDRUGInjection for intravenous use
leucovorinDRUGInjection for intravenous use
oxaliplatinDRUGInjection for intravenous use
Unlock Study Design Details

Eligibility Criteria

Age Range16 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites40

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...

Countries:United StatesCanadaIsrael
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

HIGHSep 1, 2026NCT05355701Status: RECRUITING → ACTIVE_NOT_RECRUITING
HIGHSep 1, 2026NCT05355701Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJul 31, 2026NCT05355701lastUpdatePostDate: changed
LOWJul 31, 2026NCT05355701lastUpdatePostDate: changed
LOWJul 9, 2026NCT05355701lastUpdatePostDate: changed
LOWJul 9, 2026NCT05355701lastUpdatePostDate: changed
LOWJul 2, 2026NCT05355701lastUpdatePostDate: changed
LOWJul 2, 2026NCT05355701lastUpdatePostDate: changed
LOWJul 2, 2026NCT05355701lastUpdatePostDate: changed
LOWJul 2, 2026NCT05355701lastUpdatePostDate: changed

Frequently asked questions about PF-07799933

What is PF-07799933 used for?

PF-07799933 is an investigational small molecule being studied for use in advanced solid tumors with BRAF alterations, including melanoma, non-small-cell lung cancer, thyroid cancer, glioma, and advanced colorectal cancer. It is also being studied in healthy volunteers for pharmacokinetic purposes. The drug is in Phase 1 clinical development.

What does PF-07799933 target?

PF-07799933 is being studied in patients with BRAF alterations, indicating it targets the BRAF pathway. It is designed for advanced solid tumors that harbor these genetic changes. The drug is in Phase 1 trials to evaluate its safety and efficacy in this patient population.

Who makes PF-07799933?

PF-07799933 is being developed by Pfizer, Inc., a biopharmaceutical company listed on the New York Stock Exchange under the ticker symbol PFE. The drug is currently in Phase 1 clinical development for advanced solid tumors with BRAF alterations.

What phase is PF-07799933 in?

PF-07799933 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. It is being studied in patients with advanced solid tumors with BRAF alterations and in healthy volunteers for pharmacokinetic assessments.

What clinical trials is PF-07799933 in?

PF-07799933 is being studied in two Phase 1 clinical trials. NCT05355701 is an active, not recruiting study in patients with advanced solid tumors with BRAF alterations, including melanoma, non-small-cell lung cancer, thyroid cancer, glioma, and advanced colorectal cancer. NCT07563894 is a completed study in healthy volunteers.

Is PF-07799933 the same as PF-07799544?

PF-07799933 and PF-07799544 are distinct investigational compounds. They are being studied together in a clinical trial (NCT07563894) to assess the relative bioavailability of PF-07799933 and the impact of rabeprazole and food on both drugs. They are not the same drug.