A Study to Learn About PF-07921585 Alone or With Other Anti-cancer Medicines in People With Cancer
- Conditions
- Interventions
- Registration Number
- NCT06580938
- Lead Sponsor
- Pfizer
- Brief Summary
The purpose of this study is to learn about the safety and effects of the study medicine (called PF-07921585) in people with cancer that has advanced or spread to other parts of the body.
This study is seeking participants who have any of the following cancer types:
* non-small cell lung cancer
* colorectal cancer
* bladder cancer
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- Detailed Description
The study contains 3 parts:
Part 1: dose escalation of PF-07921585 as single agent to determine the monotherapy recommended dose for further study.
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Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- All
- Target Recruitment
- 190
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Participants aged ≥18 years or older at the time of informed consent.
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Tumor types and prior treatment requirements: Participants entering Parts 2 and 3 must have at least 1 measurable lesion.
Part 1 and Part 2:
Eligible advanced/metastatic tumor types include NSCLC, urothelial carcinoma (UC), renal cell carcinoma (RCC), melanoma, head and neck squamous cell carcinoma (HNSCC), and microsatellite stable colorectal cancer (MSS-CRC). Participants must have demonstrated radiographic progression on standard treatment(s) for their cancer
Part 3:
- Cohort 1: Participants with metastatic melanoma with resistance to checkpoint inhibitor therapy and BRAF/MEKi.
- Cohort 2: Participants with metastatic MSS-CRC.
- Cohort 3: Participants with previously untreated metastatic NSCLC.
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ECOG PS 0 or 1.
Key
- Participants with any other active malignancy within 3 years prior to enrollment.
- Known or suspected hypersensitivity to, or severe allergic history of, human albumin or anti-PD-(L)1 therapy.
- History of Grade ≥3 immune-related AE (irAE) or unresolved irAEs prior to first dose of study intervention. Exception: vitiligo and endocrinopathy that is controlled with hormonal therapy.
- History of venous thromboembolic event <12 weeks prior to starting study treatment.
- Active or history of clinically significant gastrointestinal (GI) disease.
- Active or history of interstitial lung disease or Grade ≥2 pneumonitis.
- Active or history of clinically significant autoimmune disease.
- Active bleeding disorder.
- Participants who have undergone treatment with any investigational IL-12 agent.
- Active, uncontrolled infections
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SEQUENTIAL
- Arm && Interventions
Group Intervention Description Part 1 PF-07921585 Dose escalation monotherapy Part 2 PF-07921585 Dose escalation (combination therapy) Part 2 Sasanlimab Dose escalation (combination therapy) Part 3 PF-07921585 Dose optimization/ expansion (combination therapy) Part 3 Sasanlimab Dose optimization/ expansion (combination therapy)
- Primary Outcome Measures
Name Time Method Number of Participants With Dose-Limiting Toxicity (DLT) (Parts 1 and 2) Baseline up to Cycle 2 (each cycle is 21 days) Specific adverse events occurring during the first 21 days of study medication and considered at least possibly-related to study medication
Number of Participants With Treatment Emergent Adverse Events (AEs) and Serious AEs (Parts 1 and 2) Baseline up to 28 days after the last dose of PF-07921585 or after 90 days after the last dose of sasanlimab AEs are any untoward medical occurrence in a participant who received study drug. Serious adverse event (SAE) are AEs 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/incapaci...
Number of Participants With Clinically Significant Change From Baseline in Laboratory Abnormalities (Parts 1 and 2) Baseline up to 28 days after the last dose of PF-07921585 or after 90 days after the last dose of sasanlimab Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0), and timing.
Objective Response Rate - Percentage of Participants With Objective Response (Part 3) Date of first dose up to 2 years Percentage of participants with objective response based assessment of complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid Tumors 1. 1 (RECIST 1.1).
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- Secondary Outcome Measures
Name Time Method Pharmacokinetic Parameters: Area under the curve (AUCt ss)-PF-07921585 At specific timepoints from Cycle 1 day 1 up to 2 years Multiple dose PK of PF-07921585 as monotherapy (Part 1) and in combination with sasanlimab (Parts 2-3) will be calculated. Additional parameters may be calculated if data permits
Pharmacokinetic Parameters: Cmax (maximum drug concentration in the body)-PF-07921585 At specific timepoints from Cycle 1 day 1 up to 2 years Single dose PK of PF-07921585 as monotherapy will be calculated. Additional parameters may be calculated if data permits
Percentage of Participants With Positive PF-07921585 Anti-Drug Antibody (ADA) At specific timepoints from Cycle 1 day 1 up to 2 years Percentage of ADA positive participants by dose level (Parts 1-3)
Pharmacokinetic Parameters: Cmax ss (maximum drug concentration in the body)-PF-07921585 At specific timepoints from Cycle 1 day 1 up to 2 years Multiple dose PK of PF-07921585 as monotherapy (Part 1) and in combination with sasanlimab (Parts 2-3) will be calculated. Additional parameters may be calculated if data permits
Pharmacokinetic Parameters: Time to Reach Maximum Observed Plasma Concentration (Tmax ss)-PF-07921585 At specific timepoints from Cycle 1 day 1 up to 2 years Multiple dose PK of PF-07921585 as monotherapy (Part 1) and in combination with sasanlimab (Parts 2-3) will be calculated. Additional parameters may be calculated if data permits
Pharmacokinetic Parameters: Area under the curve (AUCt)-PF-07921585 At specific timepoints from Cycle 1 day 1 up to 2 years Single dose PK of PF-07921585 as monotherapy (Part 1) and in combination with sasanlimab (Parts 2-3) will be calculated. Additional parameters may be calculated if data permits
Number of Participants with Treatment emergent Adverse Events (AEs) and Serious AEs (Part 3) Baseline up to 28 days after the last dose of PF-07921585 and 90 days after the last dose of sasanlimab AEs are any untoward medical occurrence in a participant who received study drug. Serious adverse event (SAE) are AEs 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/incapaci...
Objective Response Rate-Percentage of Participants with objective response (Parts 1 and 2) Date of first dose up to 2 years Percentage of participants with objective response based assessment of complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid Tumors 1. 1 (RECIST 1.1).
...Duration of response (DOR)-Parts 1-3 Date of first dose up to 2 years Time in weeks or months from the first documentation of objective tumor response that is subsequently confirmed to objective tumor progression or death due to any cause.
Disease control rate (DCR)-Parts 1-3 Date of first dose up to 2 years DCR is defined as the percent of participants with a confirmed complete response (CR), partial response (PR) or stable disease (SD) according to RECIST 1.1, at 6 weeks.
Progression Free survival (PFS)-Parts 1-3 Date of first dose until disease progression or death, up to a maximum of 4 years Time in weeks or months from first dose to first documentation of objective tumor progression per RECIST 1.1 or death due to any cause.
Overall Survival (OS)-Part 3 Date of first dose until death, up to a maximum of 4 years Time in weeks or months from the start of study treatment to date of death due to any cause.
Percentage of Participants With Positive PF-07921585 neutralizing antibodies (Nab) At specific timepoints from Cycle 1 Day 1 up to 2 years Percentage of Nab positive participants by dose level (Parts 1-3)
Incidence and titer of PF-07921585 ADA and Nab At specific timepoints from Cycle 1 Day 1 up to 2 years Parts 1-3
Pharmacokinetic Parameters: C through-Sasanlimab At specific timepoints, predose, from Cycle 1 day 1 up to 2 years PK of sasanlimab (Parts 2 and 3)
Pharmacokinetic Parameters: Time to Reach Maximum Observed Plasma Concentration (Tmax)-PF-07921585 At specific timepoints from Cycle 1 day 1 up to 2 years Single dose PK of PF-07921585 as monotherapy (Part 1) and in combination with sansalimab (Parts 2-3) will be calculated. Additional parameters may be calculated if data permits
Percentage of Participants With Positive sasanlimab Anti-Drug Antibody (ADA) At specific timepoints from Cycle 1 day 1 up to 2 years Percentage of ADA positive participants by dose level (Parts 2-3)
Percentage of Participants With Positive sasanlimab neutralizing antibodies (Nab) At specific timepoints from Cycle 1 Day 1 up to 2 years Percentage of Nab positive participants by dose level (Parts 2-3)
Incidence and titer of sasanlimab ADA and Nab At specific timepoints from Cycle 1 Day 1 up to 2 years Parts 2-3
Trial Locations
- Locations (2)
START Midwest
🇺🇸Grand Rapids, Michigan, United States
Highlands Oncology Group
🇺🇸Springdale, Arkansas, United States