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PF-08032562

Phase 1

Advanced Breast Cancer | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Jul 22, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment260

FDA Designations

No designations recorded

Clinical trial landscape

PF-08032562 · 1 trial · 5 indications

Phase 1 1
NCT07318805A Study to Learn About the Study Medicine Called PF-08032562 in People With Advanced or Metastatic Solid TumorsAdvanced Breast Cancer
RECRUITING260 Analytics
PHASE1RECRUITING
A Study to Learn About the Study Medicine Called PF-08032562 in People With Advanced or Metastatic Solid Tumors
Advanced Breast CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Part 1 (Dose Escalation): Number of participants with Dose-Limiting Toxicities (DLT)
Baseline up to 28 days

Any adverse events that are attributable to one, the other, or both study treatments, occurring in the DLT observation period are considered DLTs, excluding toxicities clearly due to underlying disease or extraneous causes.

Part 1 (Dose Escalation): Number of participants with laboratory abnormalities
From start of treatment up to 30 days after last dose or start of new anticancer therapy, whichever occurred first

Number of participants with laboratory test abnormalities.

Part 1 (Dose Escalation): Incidence of Adverse Events (AEs)
From start of treatment up to 30 days after last dose or start of new anticancer therapy, whichever occurred first

An adverse event (AE) was any untoward medical occurrence in a participant who received study medication without regard to possibility of causal relationship to it.

Part 2 (Dose Expansion): Objective Response Rate (ORR)
Baseline and every 8 to 12 weeks through time of confirmed disease progression, death, unacceptable toxicity, or through study completion (approximately 2 years)

ORR defined as per Response Evaluation Criteria in Solid Tumors (RECIST v1.1).

Secondary Endpoints

Part 1 & Part 2: Maximum Observed Serum Concentration (Cmax)
Baseline through end of Cycle 1 (each cycle is 28 days)
Part 1 & Part 2: Time to Reach Maximum Observed Serum Concentration (Tmax)
Baseline through end of Cycle 1 (each cycle is 28 days)
Part 1: Area Under the Curve (AUC) from Time Zero to Last Quantifiable Concentration (AUClast)
Baseline through end of Cycle 1 (each cycle is 28 days)
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1 Dose Escalation Cohort 1AEXPERIMENTALPF-08032562 monotherapy dose escalation for participants with advanced or metastatic BC or CRC, at different doses and/or schedules of the study drug
Part 1 Dose Escalation Cohort 1BEXPERIMENTALCombination (PF-08032562 + fulvestrant) dose escalation for participants with advanced or metastatic BC, at different doses and/or schedules of the study drug
Part 1 Dose Escalation Cohort 1CEXPERIMENTALCombination (PF-08032562 + cetuximab) dose escalation for participants with advanced or metastatic CRC, at different doses and/or schedules of the study drug
Part 1 Dose Escalation Cohort 1DEXPERIMENTALCombination (PF-08032562 + \[FOLFOX + bevacizumab\]) dose escalation for participants with advanced or metastatic CRC, at different doses and/or schedules of the study drug
Part 2 Dose Expansion Cohort 2AEXPERIMENTALCombination (PF-08032562 + fulvestrant) dose expansion for participants with advanced or metastatic BC, at different doses and/or schedules of the study drug
Part 2 Dose Expansion Cohort 2BEXPERIMENTALPF-08032562 monotherapy or combination (PF-08032562 + cetuximab) dose expansion for participants with advanced or metastatic CRC, at different doses and/or schedules of the study drug
Part 2 Dose Expansion Cohort 2CEXPERIMENTALCombination (PF-08032562 + \[FOLFOX + bevacizumab\]) dose expansion for participants with advanced or metastatic CRC, at different doses and/or schedules of the study drug

Interventions

NameTypeDescription
PF-08032562DRUGTaken by mouth (PO)
FulvestrantDRUGSelective Estrogen Receptor Degrader (SERD)
CetuximabDRUGMonoclonal antibody (EGFR inhibitor)
FluorouracilDRUGPart of FOLFOX chemotherapy regimen cytotoxic chemotherapy (antimetabolite and pyrimidine analog)
OxaliplatinDRUGPart of FOLFOX chemotherapy regimen platinum based compound (alkylating agent)
LeucovorinDRUGPart of FOLFOX chemotherapy regimen (folic acid analog)
BevacizumabDRUGMonoclonal antibody (VEG-F inhibitor)
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites13

Inclusion Criteria: * 18 years of age or older * Advanced or metastatic cancer of the breast or colon Part 1A: metastatic or advanced breast cancer or colorectal cancer for which no standard therapy is available Part 1B: metastatic or advanced breast cancer with disease progression after at least 1...

Countries:United States
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Competitive Landscape -Breast Cancer 402 trials (matched to "Advanced Breast Cancer")

Top 20 of 92 competitors

CompanyTickerTrialsLead PhaseDrugs
AstraZeneca PLCAZN47PHASE3Fulvestrant, Capivasertib
Merck & Co., Inc.MRK12PHASE3Pembrolizumab, Paclitaxel, Doxorubicin, Epirubicin, Cyclophosphamide
Eli Lilly and CompanyLLY27PHASE3Abemaciclib, Standard Adjuvant Endocrine Therapy
BioNTech SE Sponsored ADRBNTX7PHASE3DB-1303/BNT323, T-DM1
Gilead Sciences, Inc.GILD13PHASE3Sacituzumab Govitecan-hziy, Eribulin, Capecitabine Product, Gemcitabine, Vinorelbine
Novartis AG Sponsored ADRNVS30PHASE3Ribociclib
Pfizer Inc.PFE34PHASE3ARV-471, Fulvestrant
BeOne Medicines Ltd. Sponsored ADRONC5PHASE3BGB-43395, Letrozole, Abemaciclib, Palbociclib, Ribociclib
Olema Pharmaceuticals, Inc.OLMA5PHASE3Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Jazz Pharmaceuticals Public Limited CompanyJAZZ3PHASE3Zanidatamab, Trastuzumab, Eribulin, Vinorelbine, Gemcitabine
Celcuity Inc.CELC3PHASE3Gedatolisib, Palbociclib, Fulvestrant, Alpelisib
Relay Therapeutics, Inc.RLAY2PHASE3Zovegalisib, Capivasertib, Fulvestrant
GSK plc Sponsored ADRGSK2PHASE3Niraparib
Greenwich LifeSciences, Inc.GLSI1PHASE3GLSI-100
Bristol-Myers Squibb CompanyBMY5PHASE2Iza-bren, Nab-paclitaxel, Paclitaxel, Capecitabine, Carboplatin
BriaCell Therapeutics CorpBCTX2PHASE3SV-BR-1-GM, Cyclophosphamide, Interferon infiltration of the inoculation site, Retifanlimab, Treatment of Physician's Choice
Incyte CorporationINCY4PHASE2Ruxolitinib, Capecitabine, Regorafenib
Natera, Inc.NTRA3PHASE2Discontinuation of the anti-HER2 maintenance therapy
Puma Biotechnology, Inc.PBYI3PHASE2Neratinib, Loperamide, Colesevelam
Atossa Therapeutics, Inc.ATOS1PHASE2endoxifen, goserelin
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Recent Changes (Last 90 Days)

LOWJul 22, 2026NCT07318805lastUpdatePostDate: changed
LOWJul 22, 2026NCT07318805lastUpdatePostDate: changed

Frequently asked questions about PF-08032562

What is PF-08032562 used for?

PF-08032562 is an investigational small molecule being developed for the treatment of advanced breast cancer, including HR+/HER2- metastatic breast cancer and triple negative breast cancer, as well as colorectal cancer and metastatic colorectal adenocarcinoma. It is currently in Phase 1 clinical development.

Who makes PF-08032562?

PF-08032562 is being developed by Pfizer, Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. The drug is currently in Phase 1 clinical trials.

What phase is PF-08032562 in?

PF-08032562 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. A Phase 1 study is currently recruiting participants to evaluate the drug in people with advanced or metastatic solid tumors.

What clinical trials is PF-08032562 in?

PF-08032562 is being studied in a Phase 1 clinical trial with the identifier NCT07318805. This trial is recruiting participants with advanced breast cancer, metastatic breast cancer (HR+/HER2-), colorectal cancer, metastatic colorectal adenocarcinoma, and triple negative breast cancer. The study is enrolling 260 participants in the United States.

Is PF-08032562 the same as any other drug?

No alternative names for PF-08032562 have been disclosed. The drug is identified solely by its code name PF-08032562 in clinical trial registrations and is being developed by Pfizer, Inc.