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PF-04518600

Phase 1

Neoplasms | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Apr 21, 2022

Target and mechanism

ModalitySmall molecule

Also known as PF04518600

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment174

FDA Designations

No designations recorded

Clinical trial landscape

PF-04518600 · 1 trial · 1 indication

Phase 1 1
NCT02315066Study Of OX40 Agonist PF-04518600 Alone And In Combination With 4-1BB Agonist PF-05082566Neoplasms
COMPLETED174 Analytics
PHASE1COMPLETED
Study Of OX40 Agonist PF-04518600 Alone And In Combination With 4-1BB Agonist PF-05082566
NeoplasmsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Dose Limiting Toxicities (DLTs) in Part A1
The first 2 cycles of treatment (Day 1 up to Day 28)

DLT was defined as any of the following adverse events occurring in the first two cycle of treatment (28 days), unless there was a clear alternative explanation: hematologic: grade 4 neutropenia lasting \>7 days, febrile neutropenia; grade ≥3 neutropenic infection; grade ≥3 thrombocytopenia with clinically significant bleeding or requiring medical intervention; grade 4 thrombocytopenia; grade 4 anemia; grade ≥3 anemia related to hemolysis or autoimmune disease. non hematologic: grade ≥3 toxicities that were considered clinically significant, including cytokine release syndrome, infusion reactions and allergic reactions, except those that had not been maximally treated or could be easily treated. The severity of adverse events was graded as per common terminology criteria for adverse events(CTCAE) version 4.03, and there were no DLTs reported.

Number of Participants With All-Causality Treatment Emergent Adverse Events(TEAEs) and Serious Adverse Event(SAEs), Treatment-Related TEAEs and SAEs in Part A
AEs: The informed consent date up to the last dosing date + 28 days or all drug-related toxicities resolved date. SAEs: The informed consent date through first dosing date + 98 days or up to the last dosing date + 60 days, and any post-reporting period.

Adverse event (AE) was graded by the investigator according to CTCAE version 4.03 and coded using the Medical Dictionary for Regulatory Activities (MedDRA): Grade 3 (Severe) events=unacceptable or intolerable events. Grade 4 (Life-threatening) events caused participant to be in imminent danger of death. Grade 5 (Death) events=death related to an AE. Treatment-emergent events=between first dose of study drug and up to 35 days after last dose that were absent before treatment or that worsened relative to pretreatment state. TEAEs were defined as those with initial onset or increasing in severity after the first dose of study medication. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Number of Participants With Laboratory Test Abnormalities in Part A
The first dosing date to the earlier date between the last dosing date + 35 days and the first new anti-cancer therapy date (if applicable)

Following parameters were analyzed for laboratory examination: hematology (hemoglobin, hematocrit, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes, partial thromboplastin time (PTT), Prothrombin (PT), PT international ratio); liver function (aspartate aminotransferase(AST), alanine aminotransferase(ALT), total bilirubin, gamma-glutamyl transpeptidase(GT), alkaline phosphatase, albumin, total protein); renal function (blood urea nitrogen, creatinine, uric acid); electrolytes (sodium, potassium, chloride, calcium , phosphate, magnesium); clinical chemistry (glucose, creatine kinase, thyroxine (T4), thyroid stimulating hormone(TSH)), Amylase, Lipase), urinalysis (dipstick \[protein, blood\], microscopy \[urine red blood cell (RBC), white blood cell (WBC), Epithelial Cells\], miscellaneous \[urine casts and bacteria\]).

Number of Participants With DLTs in Part B1
The First 2 Cycles of Treatment (Day 1 up to Day 28)

DLT was defined as any of the following adverse events occurring in the first two cycle of treatment (28 days), unless there was a clear alternative explanation: hematologic: grade 4 neutropenia lasting \>7 days, febrile neutropenia; grade ≥3 neutropenic infection; grade ≥3 thrombocytopenia with clinically significant bleeding or requiring medical intervention; grade 4 thrombocytopenia; grade 4 anemia; grade ≥3 anemia related to hemolysis or autoimmune disease. non hematologic: grade ≥3 toxicities that were considered clinically significant, including cytokine release syndrome, infusion reactions and allergic reactions, except those that had not been maximally treated or could be easily treated. The severity of adverse events was graded as per common terminology criteria for adverse events(CTCAE) version 4.03, and there were no DLTs reported.

Number of Participants With All-causality TEAEs and SAEs, and Treatment-Related TEAEs and SAEs in Part B
AEs: The informed consent date up to the last dosing date + 60 days or all drug-related toxicities resolved date. SAEs: The informed consent date through first dosing date + 98 days or up to the last dosing date + 60 days, and any post-reporting period.

Adverse event (AE) was graded by the investigator according to CTCAE version 4.03 and coded using the Medical Dictionary for Regulatory Activities (MedDRA): Grade 3 (Severe) events=unacceptable or intolerable events. Grade 4 (Life-threatening) events caused participant to be in imminent danger of death. Grade 5 (Death) events=death related to an AE. Treatment-emergent events=between first dose of study drug and up to 35 days after last dose that were absent before treatment or that worsened relative to pretreatment state. TEAEs were defined as those with initial onset or increasing in severity after the first dose of study medication. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Number of Participants With Laboratory Test Abnormalities in Part B
The first dosing date to the earlier date between the last dosing date + 35 days and the first new anti-cancer therapy date (if applicable)

Following parameters were analyzed for laboratory examination: hematology (hemoglobin, hematocrit, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes, partial thromboplastin time (PTT), Prothrombin (PT), PT international ratio); liver function (aspartate aminotransferase(AST), alanine aminotransferase(ALT), total bilirubin, gamma-glutamyl transpeptidase(GT), alkaline phosphatase, albumin, total protein); renal function (blood urea nitrogen, creatinine, uric acid); electrolytes (sodium, potassium, chloride, calcium , phosphate, magnesium); clinical chemistry (glucose, creatine kinase, thyroxine (T4), thyroid stimulating hormone(TSH)), Amylase, Lipase), urinalysis (dipstick \[protein, blood\], microscopy \[urine red blood cell (RBC), white blood cell (WBC), Epithelial Cells\], miscellaneous \[urine casts and bacteria\]).

Secondary Endpoints

Objective Response Rate (ORR) Assessed by Response Evaluation Criteria in Solid Tumor (RECIST) Version 1.1 and Immune Related Response Evaluation Criteria in Solid Tumors (irRECIST) in Part A
Baseline up to 24 months post first dose.
Kaplan-Meier Estimate of Median Progression-Free Survival (PFS) in Part A
Baseline up to 24 months post first dose
Kaplan-Meier Estimate of Median Time to Progression (TTP) in Part A
Baseline up to 24 months post first dose
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PF-04518600EXPERIMENTALOX40 agonist
PF-04518600 plus PF-05082566EXPERIMENTALOX40 (CD134) agonist plus 4-1BB (CD137) agonist

Interventions

NameTypeDescription
PF-04518600DRUGPart A1 - PF-04518600 will be administered intravenously every 14 days in cohorts of 2 or more patients starting at a dose of 0.01 mg/kg. Increases in dose will continue until MTD is determined
PF-04518600 plus PF-05082566DRUGPart B1 -In cohorts of 2 or more patients, PF-04518600 will be administered intravenously every 2 weeks starting at a dose of 0.1 mg/kg and PF-05082566 will be administered intravenously 4 weeks starting at a dose of 20 mg. Increases in dose will continue until MTD is determined.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites30

Inclusion Criteria: * Part A1 only: Patients with histological or cytological diagnosis of HNSCC, HCC, melanoma, or clear cell RCC who progressed on or are intolerant to standard therapy, for which no standard therapy is available or who decline standard therapy. * Part A2 only: Patients with histo...

Countries:United StatesFranceJapanNetherlands
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Frequently asked questions about PF-04518600

What is PF-04518600 used for?

PF-04518600 is an investigational small molecule being studied for the treatment of neoplasms, which are abnormal growths of tissue that can be benign or malignant. It is currently in Phase 1 clinical development for this oncology indication.

Who makes PF-04518600?

PF-04518600 is being developed by Pfizer, Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. The drug is an investigational small molecule in Phase 1 clinical development for the treatment of neoplasms.

What phase is PF-04518600 in?

PF-04518600 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still being studied in clinical trials for the treatment of neoplasms.

What clinical trials is PF-04518600 in?

PF-04518600 has been studied in one completed Phase 1 clinical trial, NCT02315066, which enrolled 174 participants with neoplasms. The trial was conducted in the United States, France, Japan, and the Netherlands, and included participants aged 18 years and older.

Is PF-04518600 the same as PF04518600?

Yes, PF-04518600 is also known as PF04518600. Both names refer to the same investigational small molecule being developed by Pfizer, Inc. for the treatment of neoplasms.