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

Phase 1
Recruiting
Conditions
Melanoma
Glioma
Thyroid Cancer
Non-Small Cell Lung Cancer
Malignant Neoplasms
Brain Neoplasms
Colorectal Cancer
Interventions
Registration Number
NCT05538130
Lead Sponsor
Pfizer
Brief Summary

The purpose of this clinical trial is to learn the safety and effects of the study medicine (PF-07799544) administered as a single agent and in combination with other study medications in people with solid tumors. This study is seeking participants who have an advanced solid tumor for which the available treatments are no longer effective in controlling their cancer. All participants in this study will receive PF-07799544. PF-07799544 comes as a tablet to take by mouth daily (initially 2 times per day, but this could change to once daily or another frequency). Depending on the part of the study, participants may also receive another study medicine.

* In the first part of the study, people with melanoma or other solid tumors may also receive encorafenib. Encorafenib comes as a capsule and is taken once per day.

* In the second part of the study, people with melanoma or other cancers with abnormalities in a gene called "BRAF" will receive PF-07799544 with other study medicines (for example, PF-07799933).

Participants may receive the study medicines for about 2 years. The study team will monitor how each participant is doing with the study treatment during regular visits at the study clinic.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
124
Inclusion Criteria
  • Diagnosis of advanced/metastatic solid tumor including primary brain tumor for monotherapy phase 1a dose escalation
  • Disease progressed during/following last prior treatment and no satisfactory alternative treatment options for monotherapy phase 1a dose escalation
  • For Substudy B, histological or cytological diagnosis of advanced/metastatic melanoma
  • For Substudy C, unresectable or adv/metastatic solid tumor progressed on, or with demonstrated intolerance to SOC, excluding melanoma,
  • For Substudy B and C, measurable disease by RECIST version 1.1
  • For Substudy B, evidence of a BRAF V600 mutation or BRAF Class II/III alteration in tumor tissue and/or blood
  • For Substudy C, evidence of a BRAF founder alteration (non-V600 Class II/III BRAF alteration)
Exclusion Criteria
  • Brain metastasis larger than 4 cm
  • History or current evidence of retinal vein occlusion (RVO) or concurrent neuromuscular disorder associated with elevated creatine kinase (CK)

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Monotherapy Dose Escalation (Phase 1a)PF-07799544Participants will receive PF-07799544
Monotherapy Dose Escalation (Phase 1a)encorafenibParticipants will receive PF-07799544
Phase 1b Substudy B Combination Dose EscalationPF-07799544Participants will receive PF-07799544 and PF-07799933
Phase 1b Substudy B Combination Dose ExpansionPF-07799544Participants will receive PF-07799544 and PF-07799933
Phase 1b Substudy C Combination Dose ExpansionPF-07799544Participants will receive PF-07799544 and PF-07799933
Phase 1b Substudy C Combination Dose ExpansionPF-07799933Participants will receive PF-07799544 and PF-07799933
Phase 1b Substudy B Combination Dose EscalationPF-07799933Participants will receive PF-07799544 and PF-07799933
Phase 1b Substudy B Combination Dose ExpansionPF-07799933Participants will receive PF-07799544 and PF-07799933
Primary Outcome Measures
NameTimeMethod
Number of participants with dose limiting toxicities (DLTs) Phase 1a monotherapy and Phase 1b combination therapy dose escalationCycle 1 (21 days)

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)

Overall response rate (ORR) (phase 1b expansion)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 change from baseline in laboratory abnormalities (phase 1a and phase 1b dose escalation phase)Baseline to 28 days after last dose of study treatment

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

Number of participants with treatment-emergent adverse events (AEs) (phase 1a and 1b dose escalation phases)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 vital sign abnormalities (phase 1a and phase 1b dose escalation phase)Baseline to 28 days after last dose of study treatment

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

Number of participants with clinically significant change from baseline in physical exam abnormalities (phase 1a and phase 1b dose escalation phase)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 Outcome Measures
NameTimeMethod
PK parameters of PF-07799933, Multiple dose, terminal elimination half life (t½)Baseline to 2 years

PK parameters of PF-07799933, Multiple dose, t½

PK parameters of PF-07799933, Multiple dose, apparent oral clearance (CL/F)Baseline to 2 years

PK parameters of PF-07799933, Multiple dose, CL/F

Number of participants with treatment-emergent adverse events (AEs)Baseline to 2 years

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

Number of participants with clinically significant change from baseline in vital sign abnormalitiesBaseline to 2 years

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

PK parameters of PF-07799933, Single dose, terminal elimination half life (t½)Baseline to 2 years

PK parameters of PF-07799933, Single dose, t½

PK parameters of PF-07799933, Single dose, apparent oral clearance (CL/F)Baseline to 2 years

PK parameters of PF-07799933, Single dose, CL/F

PK parameters of PF-07799933, Single dose, apparent volume of distribution (Vz/F)Baseline to 2 years

PK parameters of PF-07799933, Single dose, Vz/F

PK parameters of PF-07799933, Multiple dose, maximum observed concentration (Cmax)Baseline to 2 years

PK parameters of PF-07799933, Multiple dose, Cmax

PK parameters of PF-07799933, Multiple dose, time to maximum plasma concentration (Tmax)Baseline to 2 years

PK parameters of PF-07799933, Multiple dose, Tmax

PK parameters of PF-07799933, Multiple dose, area under the plasma concentration-time curve over the dosing interval (AUCτ)Baseline to 2 years

PK parameters of PF-07799933, Multiple dose, AUCτ

PK parameters of PF-07799933, Multiple dose, apparent volume of distribution (Vz/F)Baseline to 2 years

PK parameters of PF-07799933, Multiple dose, Vz/F

ORR (phase 1a and phase 1b dose escalation)Baseline to 2 years

ORR as assessed using the RECIST version 1.1.

Duration of response overall and in CNSBaseline to 2 years
Intracranial response (phase 1b Part 2)Baseline to 2 years

Intracranial response by RECIST version 1.1 (for brain metastases)

PFSBaseline to 2 years
PK parameters of PF-07799544, Single dose, time to maximum plasma concentration (Tmax)Baseline to 2 years

PK parameters of PF-07799544, Single dose, Tmax

PK parameters of PF-07799544, Single dose, area under the plasma concentration-time curve from time 0 to the last time point of quantifiable concentration (AUClast)Baseline to 2 years

PK parameters of PF-07799544, Single dose, AUClast

PK parameters of PF-07799544, Single dose, area under the plasma concentration-time curve from time 0 extrapolated to infinity (AUCinf)Baseline to 2 years

PK parameters of PF-07799544, Single dose, AUCinf

PK parameters of PF-07799544, Single dose, terminal elimination half life (t½)Baseline to 2 years

PK parameters of PF-07799544, Single dose, t½

PK parameters of PF-07799544, Single dose, apparent oral clearance (CL/F)Baseline to 2 years

PK parameters of PF-07799544, Single dose, CL/F

Number of participants with clinically significant change from baseline in laboratory abnormalitiesBaseline to 2 years

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

PK parameters of PF-07799544, Single dose, maximum observed concentration (Cmax)Baseline to 2 years

PK parameters of PF-07799544, Single dose, Cmax

PK parameters of PF-07799544, Multiple dose, maximum observed concentration (Cmax)Baseline to 2 years

PK parameters of PF-07799544, Multiple dose, Cmax

PK parameters of PF-07799544, Multiple dose, time to maximum plasma concentration (Tmax)Baseline to 2 years

PK parameters of PF-07799544, Multiple dose, Tmax

PK parameters of PF-07799544, Multiple dose, area under the plasma concentration-time curve over the dosing interval (AUCτ)Baseline to 2 years

PK parameters of PF-07799544, Multiple dose, AUCτ

PK parameters of PF-07799544, Multiple dose, terminal elimination half life (t½)Baseline to 2 years

PK parameters of PF-07799544, Multiple dose, t½

PK parameters of PF-07799544, Multiple dose, apparent oral clearance (CL/F)Baseline to 2 years

PK parameters of PF-07799544, Multiple dose, CL/F

PK parameters of PF-07799544, Multiple dose, apparent volume of distribution (Vz/F)Baseline to 2 years

PK parameters of PF-07799544, Multiple dose, Vz/F

PK parameters of PF-07799933, Single dose, maximum observed concentration (Cmax)Baseline to 2 years

PK parameters of PF-07799933, Single dose, Cmax

PK parameters of PF-07799933, Single dose, time to maximum plasma concentration (Tmax)Baseline to 2 years

PK parameters of PF-07799933, Single dose, Tmax

PK parameters of PF-07799933, Single dose, area under the plasma concentration-time curve from time 0 to the last time point of quantifiable concentration (AUClast)Baseline to 2 years

PK parameters of PF-07799933, Single dose, AUClast

PK parameters of PF-07799933, Single dose, area under the plasma concentration-time curve from time 0 extrapolated to infinity (AUCinf)Baseline to 2 years

PK parameters of PF-07799933, Single dose, AUCinf

PK parameters of PF-07799544, Single dose, apparent volume of distribution (Vz/F)Baseline to 2 years

PK parameters of PF-07799544, Single dose, Vz/F

Trial Locations

Locations (39)

Memorial Sloan Kettering Cancer Center 53rd street.

🇺🇸

New York, New York, United States

Columbia University Irving Medical Center

🇺🇸

New York, New York, United States

Columbia University Medical Center - Neurological Institute of New York

🇺🇸

New York, New York, United States

CUIMC Research Pharmacy

🇺🇸

New York, New York, United States

Memorial Sloan Kettering Cancer Center - Main Campus

🇺🇸

New York, New York, United States

MSK Nassau.

🇺🇸

Uniondale, New York, United States

Cleveland Clinic Taussig Cancer Center Investigational Pharmacy

🇺🇸

Cleveland, Ohio, United States

Cleveland Clinic Taussig Cancer Center

🇺🇸

Cleveland, Ohio, United States

Providence Cancer Institute Franz Clinic

🇺🇸

Portland, Oregon, United States

Providence Portland Medical Center

🇺🇸

Portland, Oregon, United States

Sarah Cannon Research Institute- Pharmacy

🇺🇸

Nashville, Tennessee, United States

SCRI Oncology Partners

🇺🇸

Nashville, Tennessee, United States

University of Texas MD Anderson Cancer Center

🇺🇸

Houston, Texas, United States

Fred Hutchinson Cancer Center

🇺🇸

Seattle, Washington, United States

University of Washington Medical Center

🇺🇸

Seattle, Washington, United States

Cross Cancer Institute

🇨🇦

Edmonton, Alberta, Canada

The Ottawa Hospital - General Campus

🇨🇦

Ottawa, Ontario, Canada

Princess Margaret Cancer Centre

🇨🇦

Toronto, Ontario, Canada

Jewish General Hospital

🇨🇦

Montreal, Quebec, Canada

McGill University Health Centre

🇨🇦

Montréal, Quebec, Canada

Sunnybrook Research Institute

🇨🇦

Toronto, Ontario, Canada

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

🇨🇦

Quebec City, Quebec, Canada

Soroka Medical Center

🇮🇱

Beer-Sheva, Hadarom, Israel

Rabin Medical Center

🇮🇱

Petah Tikva, Hamerkaz, Israel

Sheba Medical Center

🇮🇱

Ramat Gan, Hamerkaz, Israel

Sourasky Medical Center

🇮🇱

Tel Aviv, Tell Abīb, Israel

Hadassah Medical Center

🇮🇱

Jerusalem, Yerushalayim, Israel

Highlands Oncology Group

🇺🇸

Rogers, Arkansas, United States

Highlands Oncology Group, PA

🇺🇸

Springdale, Arkansas, United States

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

🇺🇸

Tampa, Florida, United States

Moffitt Cancer Center

🇺🇸

Tampa, Florida, United States

Moffitt McKinley Hospital

🇺🇸

Tampa, Florida, United States

Brigitte Harris Cancer Pavilion

🇺🇸

Detroit, Michigan, United States

Henry Ford Hospital

🇺🇸

Detroit, Michigan, United States

MSK Basking Ridge.

🇺🇸

Basking Ridge, New Jersey, United States

MSK Monmouth.

🇺🇸

Middletown, New Jersey, United States

MSK Bergen.

🇺🇸

Montvale, New Jersey, United States

MSK Commack.

🇺🇸

Commack, New York, United States

MSK Westchester.

🇺🇸

Harrison, New York, United States

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