A phase 1, open-label, dose escalation and expansion study of PF-07062119 in patients with selected advanced or metastatic gastrointestinal tumors
This is a Phase 1, open-label, multi-center, non-randomized, multiple dose, safety, tolerability, pharmacokinetic, and pharmacodynamic study of PF-07062119 administered as a single agent in sequential dose levels and then in combination with anti-programmed cell death -1 protein (anti-PD-1) and in combination with an anti-vascular endothelial growth factor (anti-VEGF). In Part 1A, successive cohorts of patients will receive escalating doses of PF-007062119 and then in dose finding (Part 1B) with PF-07062119 in combination with anti-PD-1 and in combination with anti-VEGF. This study contains 2 parts, dose escalation with single agent (Part 1A) and then dose finding with PF-007062119 in combination with ant-PD-1 and in combination with anti-VEGF (Part 1B) followed by dose expansion arms as a single agent and PF-07062119 in combination with anti-PD 1 and in combination with anti-VEGF (Part 2).
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
79
City of Hope (City of Hope National Medical Center, City of Hope Medical Center)
Duarte, California, United States
Number of Participants With Dose Limiting Toxicities (DLTs) Assessed Through Cycle 1
Hematological DLTs: * Grade 3 neutropenia lasting \>5 days * Febrile neutropenia defined as an ANC \<1.0 x 10 ̂9/L with a single temperature of \>38.3°C, or a sustained temperature of ≥38°C, for more than 1 hour * Grade ≥3 Neutropenia with infection * Grade 3 Thrombocytopenia with Grade ≥2 (clinically significant) bleeding * any Grade 4 Thrombocytopenia * Anemia or Thrombocytopenia requiring transfusion Non Hematological DLTs: * Grade ≥3 fatigue lasting ≥7 days * for participants with liver, bone, or lung metastasis, an AST or ALT increase \>8 x ULN or ALP \>10 x ULN; * confirmed DILI meeting Hy's law criteria * Grade 3 Vomiting or Diarrhea lasting ≥3 days despite adequate treatment/other supportive care * Grade 4 Vomiting or Diarrhea * Grade ≥3 CRS regardless of duration * Grade ≥3 QTcF prolongation irrespective of duration * any death not clearly due to underlying disease or extraneous causes Clinically important/persistent toxicities were DLTs reviewed by investigators and sponsor.
Time frame: 28 Days
Number of Participants With All-Causality Treatment-Emergent Adverse Events (TEAEs),Treatment-Emergent Serious Adverse Events (TESAEs), Maximum Grade 3 or 4 and 5 TEAEs
An AE was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE was defined as any untoward medical occurrence that, at any dose: resulted in death; was life threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent disability/incapacity; was a congenital anomaly/birth defect, etc. Treatment-emergent events were with onset date occurring during the on-treatment period. AEs were documented and recorded at each visit using the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0.
Time frame: 4 Years
Number of Participants With Treatment-Related TEAEs, TESAEs, Maximum Grade 3 or 4 and 5 TEAEs
An AE was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE was defined as any untoward medical occurrence that, at any dose: resulted in death; was life threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent disability/incapacity; was a congenital anomaly/birth defect, etc. Treatment-emergent events were with onset date occurring during the on-treatment period. Relatedness to study treatment was determined by the investigator. AEs were documented and recorded at each visit using the NCI CTCAE version 5.0. Severe AEs were classified as Grade 3; life-threatening consequences and urgent intervention indicated were classified as Grade 4; deaths related to AEs were classified as Grade 5.
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City of Hope IDS Pharmacy
Duarte, California, United States
UCLA Department of Medicine: Hematology-Oncology
Los Angeles, California, United States
UCLA Hematology Oncology - Santa Monica
Santa Monica, California, United States
University of Colorado Hospital - Anschutz Cancer Pavilion (ACP)
Aurora, Colorado, United States
University of Colorado Hospital - Anschutz Inpatient Pavilion (AIP)
Aurora, Colorado, United States
University of Colorado Hospital - Anschutz Outpatient Pavilion (AOP)
Aurora, Colorado, United States
START Midwest
Grand Rapids, Michigan, United States
Memorial Sloan Kettering Cancer Center Rockefeller Outpatient Pavillion
New York, New York, United States
Evelyn H. Lauder Breast and Imaging Center
New York, New York, United States
...and 9 more locations
Time frame: 4 Years
Number of Participants With CTCAE Grade 3 or 4 Hematology Laboratory Abnormalities
The investigator reviewed the laboratory report, documented this review, and recorded any clinically relevant changes occurring during the study in the AE section of the CRF. Clinically significant abnormal laboratory findings were those which were not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition. CTCAE version 5.0 was applied.
Time frame: 4 Years
Number of Participants With CTCAE Grade 3 or 4 Chemistry Laboratory Abnormalities
The investigator reviewed the laboratory report, documented this review, and recorded any clinically relevant changes occurring during the study in the AE section of the case report form (CRF). Clinically significant abnormal laboratory findings were those which were not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition. CTCAE version 5.0 was applied.
Time frame: 4 Years
Cycle 1 and Cycle 4 PF-07062119 PK Parameters: Maximum Concentration (Cmax) - Priming Cohorts
Cmax was observed directly from data.
Time frame: Cycle 1 Day 1, Cycle 1 Day 15 and Cycle 4 Day 1
Cycle 1 and Cycle 4 PF-07062119 PK Parameters: Cmax - Non-Priming Cohorts
Cmax was observed directly from data.
Time frame: Cycle 1 Day 1 and Cycle 4 Day 1
Cycle 1 and Cycle 4 PF-07062119 PK Parameters: Time to Achieve Cmax (Tmax) - Priming Cohorts
Tmax was time at which Cmax occurred which was observed directly from data as time of first occurrence.
Time frame: Cycle 1 Day 1, Cycle 1 Day 15 and Cycle 4 Day 1
Cycle 1 and Cycle 4 PF-07062119 PK Parameters: Tmax - Non-Priming Cohorts
Tmax was time at which Cmax occurred which was observed directly from data as time of first occurrence.
Time frame: Cycle 1 Day 1 and Cycle 4 Day 1
Cycle 1 and Cycle 4 PF-07062119 PK Parameters: Area Under the Serum Concentration-Time Profile From Time 0 to Time Tau, the Dosing Interval (AUCtau) - Priming Cohorts
AUCtau was area under the serum concentration-time profile from time 0 to time tau, the dosing interval, determined using linear/Log trapezoidal method.
Time frame: Cycle 1 Day 1 and Cycle 4 Day 1
Cycle 1 and Cycle 4 PF-07062119 PK Parameters: AUCtau - Non-Priming Cohorts
AUCtau was area under the serum concentration-time profile from time 0 to time tau, the dosing interval, determined using linear/Log trapezoidal method.
Time frame: Cycle 1 Day 1 and Cycle 4 Day 1
Cycle 1 and Cycle 4 PF-07062119 PK Parameters: Area Under the Serum Concentration-Time Profile From Day 1 to Day 7 (168 Hours) (AUC168) - Priming Cohorts
AUC168 was area under the serum concentration-time profile from Day 1 to Day 7 (168 hours) determined using linear/Log trapezoidal method.
Time frame: Cycle 1 Day 1, Cycle 1 Day 15 and Cycle 4 Day 1
Cycle 1 and Cycle 4 PF-07062119 PK Parameters: AUC168 - Non-Priming Cohorts
AUC168 was area under the serum concentration-time profile from Day 1 to Day 7 (168 hours) determined using linear/Log trapezoidal method.
Time frame: Cycle 1 Day 1 and Cycle 4 Day 1
Pre-dose Trough Concentrations After Multiple Doses of PF-07062119
PF-07062119 pre-dose trough concentrations were the serum PF-07062119 concentrations assessed at 0 min of Day 1 and Day 15 in each Cycle.
Time frame: Cycle 1 Day 15, Cycle 2 Days 1 and 15, Cycle 3 Days 1 and 15, Cycle 4 Days 1 and 15, Cycle 5 Day 1, Cycle 8 Day 1 and Cycle 11 Day 1
Incidence of Anti-Drug Antibody (ADA) Positive Against PF-07062119
Blood samples of approximately 4 mL, to provide a minimum of serum 2 mL, were collected for determination of ADA against PF-07062119. All samples were collected on Day 1 of a cycle (also on Day 15, in Cycle 1 only) and drawn pre-dose - within 6 hours prior to any of the drugs being administered. Starting at Cycle 5, blood samples for ADA against PF-07062119 were collected every 3rd cycle pre-dose (ie, Cycle 5 Day 1, Cycle 8 Day 1, Cycle 11 Day 1, etc.). Participants with an unresolved AE possibly related to ADA were asked to return to the clinic for ADA and drug concentration assessments at approximately 3 month intervals until the AE or its sequelae resolved or stabilized at a level acceptable to the investigator and sponsor up to a maximum of 9 months.
Time frame: Pre-dose on Cycle 1 Day 1 and Day 15; Day 1 of Cycles 2 to 4; Day 1 of every 3rd cycle since Cycle 5
Titers of ADA Against PF-07062119
Blood samples of approximately 4 mL, to provide a minimum of serum 2 mL, were collected for determination of ADA against PF-07062119. ADA titers of participants with positive PF-07062119 ADA (titer ≥70) are summarized.
Time frame: Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 1 and End of Treatment
Incidence of Neutralizing Antibody (NAb) Positive Against PF-07062119
Blood samples of approximately 4 mL, to provide a minimum of serum 2 mL, were collected for determination of NAb against PF-07062119. All samples were collected on Day 1 of a cycle (also on Day 15, in Cycle 1 only) and will be drawn pre-dose - within 6 hours prior to any of the drugs being administered. Starting at Cycle 5, blood samples for NAb against PF-07062119 were collected every 3rd cycle pre-dose (ie, Cycle 5 Day 1, Cycle 8 Day 1, Cycle 11 Day 1, etc). An NAb sample was defined as positive when NAb titer was ≥2.
Time frame: Pre-dose on Cycle 1 Day 1 and Day 15; Day 1 of Cycles 2 to 4; Day 1 of every 3rd cycle since Cycle 5
Incidence of ADA Positive Against PF-06801591
Blood samples of approximately 4 mL, to provide a minimum of serum 2 mL, were collected for determination of ADA against PF-06801591. All samples were collected on Day 1 of a cycle (also on Day 15, in Cycle 1 only) and drawn pre-dose - within 6 hours prior to any of the drugs being administered. Starting at Cycle 5, blood samples for ADA against PF-06801591 in Part 1B were collected every 3rd cycle pre-dose (ie, Cycle 5 Day 1, Cycle 8 Day 1, Cycle 11 Day 1, etc). Participants with an unresolved AE possibly related to ADA were asked to return to the clinic for ADA and drug concentration assessments at approximately 3 month intervals until the AE or its sequelae resolved or stabilized at a level acceptable to the investigator and sponsor up to a maximum of 9 months. A participant was PF-06801591 ADA positive when ADA titer was ≥99.
Time frame: Cycle 1 Day 1 and Day 15, Cycle 2 Day 1 and Day 15, Cycle 3 Day 1 and Day 15, Cycle 4 Day 15, Cycle 5 Day 15 and End of Treatment
Percent Change From Baseline in Immune Biomarkers (CD3+ and CD8+ Cells/mm2 CT+, PD-L1 Tumor Cell Membrane Staining and PD-L1 Positive Immune Cells Per Tumor Area) in Pre-treatment and On-Treatment Paired Tumor Biopsies
Tumor biospecimens from archival and/de novo biopsies were used to analyze candidate nucleic acid and protein and cellular biomarkers for their ability to inform those participants who were most likely to benefit from treatment with the study interventions. De novo tumor biopsies obtained during therapy and upon disease progression could be used to help confirm pharmacodynamic effects of treatment and investigate potential acquired mechanisms of resistance (ie, presence of but not limited to regulatory T-cells or myeloid derived suppressor cells and other immune suppressive cells or proteins).
Time frame: Baseline (Baseline was defined as the time closest to, but prior to, the start of study drug administration in the first cycle), Cycle 3 Day 1
Number of Participants With Confirmed Objective Response
Tumor assessments included all known or suspected disease sites. Imaging included contrast enhanced chest, abdomen and pelvis CT or MRI scans; brain CT or MRI scan for participants with known or suspected brain metastases; bone scan and/or bone x rays for participants with known or suspected bone metastases. For participants with known CT contrast allergy, a non-contrast CT of the chest with contrast enhanced abdominal and pelvic MRI could be used. The same imaging technique used to characterize each identified and reported lesion at baseline was employed in the tumor assessments. Assessment of response used Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Objective Response was defined as complete response (CR) + partial response (PR).
Time frame: Baseline up to maximum of 4 years