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MelanomaPhase 1NCT05538130

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

A Phase 1 study testing PF-07799544 and PF-07799933 in people with Melanoma and Glioma, run by Pfizer at 66 sites in 7 countries.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 16 years and older
Conditions the study is for
Melanoma, Glioma, Thyroid Cancer
What is being tested?
PF-07799544 and PF-07799933
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
148 participants
Where
66 sitesin 7 countries
Study dates
30 Nov 2022to 31 Aug 2027
Phase
Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 16 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

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

Trial locations and contacts

66 sites in 7 countries.

66 sites in 7 countries

United States44 sites
  • MSK Basking Ridge.

    Basking Ridge, New Jersey, 07920

  • The Kirklin Clinic of UAB Hospital

    Birmingham, Alabama, 35233

  • The University of Alabama at Birmingham

    Birmingham, Alabama, 35249

  • University of Alabama at Birmingham - Phase I Clinical Trials Unit

    Birmingham, Alabama, 35249

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02115

  • Dana-Farber Cancer Institute

    Boston, Massachusetts, 02215

  • Cleveland Clinic Taussig Cancer Center Investigational Pharmacy

    Cleveland, Ohio, 44106

  • Cleveland Clinic Taussig Cancer Center

    Cleveland, Ohio, 44195

  • MSK Commack.

    Commack, New York, 11725

  • Brigitte Harris Cancer Pavilion

    Detroit, Michigan, 48202

  • Henry Ford Hospital

    Detroit, Michigan, 48202

  • Highlands Oncology Group, PA

    Fayetteville, Arkansas, 72703

  • MSK Westchester.

    Harrison, New York, 10604

  • University of Texas MD Anderson Cancer Center

    Houston, Texas, 77030

  • The Angeles Clinic and Research Institute- A Cedars-Sinai Affiliate

    Los Angeles, California, 90025

  • Keck Hospital of USC

    Los Angeles, California, 90033

  • Los Angeles General Medical Center

    Los Angeles, California, 90033

  • USC/Norris Comprehensive Cancer Center

    Los Angeles, California, 90033

  • University of Wisconsin Carbone Cancer Center - Eastpark Medical Center

    Madison, Wisconsin, 53718

  • University of Wisconsin Carbone Cancer Center - University Hospital

    Madison, Wisconsin, 53792

  • MSK Monmouth.

    Middletown, New Jersey, 07748

  • MSK Bergen.

    Montvale, New Jersey, 07645

  • SCRI Oncology Partners

    Nashville, Tennessee, 37203

  • Ochsner Clinic Foundation

    New Orleans, Louisiana, 70121

  • Memorial Sloan Kettering Cancer Center 53rd street.

    New York, New York, 10022

  • Columbia University Irving Medical Center

    New York, New York, 10032

  • Columbia University Medical Center - Neurological Institute of New York

    New York, New York, 10032

  • CUIMC Research Pharmacy

    New York, New York, 10032

  • Memorial Sloan Kettering Cancer Center - Main Campus

    New York, New York, 10065

  • Keck Medical Center of USC Pasadena

    Pasadena, California, 91105

  • Providence Cancer Institute Franz Clinic

    Portland, Oregon, 97213

  • Providence Portland Medical Center

    Portland, Oregon, 97213

  • Highlands Oncology Group, PA

    Rogers, Arkansas, 72758

  • UCSF Helen Diller Family Comprehensive Cancer Center

    San Francisco, California, 94143

  • UCSF Helen Diller Medical Center at Parnassus Heights

    San Francisco, California, 94143

  • UCSF Medical Center, Investigational Pharmacy

    San Francisco, California, 94158

  • The Angeles Clinic and Research Institue, A Cedars-Sinai Affiliate (Emergency Back-up only)

    Santa Monica, California, 90404

  • Fred Hutchinson Cancer Center

    Seattle, Washington, 98109

  • University of Washington Medical Center

    Seattle, Washington, 98195

  • Highlands Oncology Group, PA

    Springdale, Arkansas, 72762

  • Moffitt Cancer Center, Richard M. Shulze Family Foundation Outpatient Center

    Tampa, Florida, 33612

  • Moffitt Cancer Center

    Tampa, Florida, 33612

  • Moffitt McKinley Hospital

    Tampa, Florida, 33612

  • MSK Nassau.

    Uniondale, New York, 11553

Other trials in United States

Canada8 sites
  • Cross Cancer Institute

    Edmonton, Alberta, T6G 1Z2

  • Alberta Health Services and The Governors of The University of Alberta

    Edmonton, Alberta, T6G 2C8

  • Jewish General Hospital

    Montreal, Quebec, H3T 1E2

  • McGill University Health Centre

    Montreal, Quebec, H4A 3J1

  • The Ottawa Hospital - General Campus

    Ottawa, Ontario, K1H 8L6

  • Centre intégré de cancérologie du CHU de Québec Université Laval, Hôpital de l'Enfant-Jésus

    Québec, Quebec, G1J 1Z4

  • Sunnybrook Research Institute

    Toronto, Ontario, M4N 3M5

  • Princess Margaret Cancer Centre

    Toronto, Ontario, M5G 2M9

Other trials in Canada

Israel4 sites
  • Soroka Medical Center

    Beersheba, Southern District, 8410101

  • Hadassah Medical Center

    Jerusalem, Jerusalem, 9112001

  • Rabin Medical Center

    Petah Tikva, Central District, 4941492

  • Sheba Medical Center

    Ramat Gan, Central District, 5265601

Other trials in Israel

Australia3 sites
  • Peter MacCallum Cancer Centre

    Melbourne, Victoria, 3000

  • The Alfred Hospital

    Melbourne, Victoria, 3004

  • Royal Melbourne Hospital

    Parkville, Victoria, 3050

Other trials in Australia

Brazil3 sites
  • ANIMI - Unidade de Tratamento Oncologico

    Lages, Santa Catarina, 88501001

  • Centro de Oncologia - CEON+ - Unidade São Caetano do Sul

    São Caetano do Sul, 09541-270

  • IBCC - Núcleo de Pesquisa e Ensino

    São Paulo, 04014-002

Other trials in Brazil

China2 sites
  • Zhejiang Cancer Hospital

    Hangzhou, Zhejiang, 310022

  • The First Affiliated Hospital of Wenzhou Medical University

    Wenzhou, Zhejiang, 325000

Other trials in China

Japan2 sites
  • Kansai Medical University Hospital

    Hirakata, Osaka, 573-1191

  • National Cancer Center Hospital East

    Kashiwa, Chiba, 277-8577

Other trials in Japan

About this study

Official title: A PHASE 1A/B OPEN-LABEL MASTER STUDY OF PF-07799544 AS A SINGLE-AGENT AND IN COMBINATION WITH OTHER TARGETED AGENTS IN PARTICIPANTS WITH BRAF-MUTANT MELANOMA AND OTHER SOLID TUMORS

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:

Read more
  • 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.

Being tested
PF-07799544, PF-07799933
Keywords
solid tumors, BRAF, advanced solid tumors, B-Raf, MAPK, neoplasms, BRAF V600
Medical subject headings
Melanoma, Glioma, Thyroid Neoplasms, Carcinoma, Non-Small-Cell Lung, Neoplasms, Brain Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PF-07799544Drug

    Also called ARRY-134

    Tablet

  • PF-07799933Drug

    Also called ARRY-440

    Tablet

Study groups in NCT05538130
Study groupRoleWhat they receive
Phase 1a Monotherapy Dose EscalationExperimentalParticipants will receive PF-07799544
Receives: Drug: PF-07799544
Phase 1b Combination Dose EscalationExperimentalParticipants will receive PF-07799544 and PF-07799933
Receives: Drug: PF-07799544; Drug: PF-07799933
Phase 1b Combination Dose ExpansionExperimentalParticipants will receive PF-07799544 and PF-07799933
Receives: Drug: PF-07799544; Drug: PF-07799933

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Phase 1a monotherapy and Phase 1b combination dose escalation: Number of participants with dose limiting toxicities (DLTs)

    DLTs will be evaluated during the first cycle (21 days) as a single agent (phase 1a monotherapy) or in combination with other agents (phase 1b dose escalation)

    Measured: Cycle 1 (21 days)

  2. Phase 1a monotherapy and Phase 1b combination dose escalation: Number of participants with treatment-emergent adverse events (AEs)

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

    Measured: Baseline to 28 days after last dose of study medication

  3. Phase 1a monotherapy and Phase 1b combination dose escalation: Number of participants with clinically significant change from baseline in laboratory abnormalities

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

    Measured: Baseline to 28 days after last dose of study treatment

  4. Phase 1a monotherapy and Phase 1b combination dose escalation: Number of participants with clinically significant change from baseline in vital sign abnormalities

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

    Measured: Baseline to 28 days after last dose of study treatment

  5. Phase 1a monotherapy and Phase 1b combination dose escalation: Number of participants with clinically significant change from baseline in physical exam abnormalities

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

    Measured: Baseline to 28 days after last dose of study treatment

  6. Phase 1b Dose Expansion: Overall response rate (ORR)

    Response will be evaluated via radiographical tumor assessments by RECIST v1.1 for solid tumors or RANO for primary brain tumors

    Measured: Baseline to 2 years

Secondary outcomes (13)
  1. Phase 1a monotherapy and Phase 1b combination dose escalation: ORR

    ORR as assessed using the RECIST version 1.1.

    Measured: Baseline to 2 years

  2. Phase 1b Dose Expansion: Number of participants with treatment-emergent adverse events (AEs)

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

    Measured: Baseline to 2 years

  3. Phase 1b Dose Expansion: Number of participants with clinically significant change from baseline in vital sign abnormalities

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

    Measured: Baseline to 2 years

  4. Phase 1b Dose Expansion: Number of participants with clinically significant change from baseline in laboratory abnormalities

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

    Measured: Baseline to 2 years

  5. Phase 1b Dose Expansion: Duration of Response (Overall and in CNS)

    Response will be evaluated via radiographical tumor assessments by RECIST v1.1 for solid tumors or RANO for primary brain tumors

    Measured: Baseline to 2 years

  6. Phase 1b Dose Expansion: Intracranial response

    Intracranial response by RECIST version 1.1 (for brain metastases)

    Measured: Baseline to 2 years

  7. Phase 1b Dose Expansion: Progression Free Survival (PFS)

    Response will be evaluated via radiographical tumor assessments by RECIST v1.1 for solid tumors or RANO for primary brain tumors

    Measured: Baseline to 2 years

  8. PK Parameters: Maximum Observed Concentration (Cmax)

    Single dose and multiple dose PK will be calculated as data permits

    Measured: Baseline to 2 years

  9. PK Parameters: Maximum Plasma Concentration (Tmax)

    Single dose and multiple dose PK will be calculated as data permits

    Measured: Baseline to 2 years

  10. PK Parameters: Area Under Curve (AUC)

    Single dose and multiple dose PK will be calculated as data permits

    Measured: Baseline to 2 years

  11. PK Parameters: terminal elimination half-life (t½)

    Singe dose and multiple dose PK will be calculated as data permits

    Measured: Baseline to 2 years

  12. PK Parameters: Apparent Oral Clearance (CL/F)

    Singe dose and multiple dose PK will be calculated as data permits

    Measured: Baseline to 2 years

  13. PK Parameters: Apparent Volume of Distribution (Vz/F)

    Singe dose and multiple dose PK will be calculated as data permits

    Measured: Baseline to 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Sep 2022
  2. Study start30 Nov 2022
  3. Primary completion31 Aug 2027 (estimated)
  4. Study completion31 Aug 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
148 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05538130
Sponsor's protocol ID
C4901001
Other IDs
NCT05538130
Status last verified
Aug 2026
First submitted
9 Sep 2022
Last updated
1 Sep 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing PF-07799544 and PF-07799933 in people with Melanoma and Glioma, run by Pfizer at 66 sites in 7 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 1 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 66 sites in United States, Canada, Israel, Australia, Brazil and 2 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Phase 1a monotherapy and Phase 1b combination dose escalation: Number of participants with dose limiting toxicities (DLTs) (time frame: Cycle 1 (21 days)). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Sep 2026; AzTrials last refreshed its copy on 27 Oct 2026.

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