This is a Phase I, multicenter, open-label study of MEHD7945A in participants with incurable, locally advanced, or metastatic epithelial malignancies that have progressed despite standard therapy or for which no standard therapy exists. The study will be conducted in two stages: a dose escalation stage and an expansion stage. The dose-escalation stage is designed to evaluate the safety, tolerability, and PK of MEHD7945A administered (at five dose levels from 1 to 30 milligrams per kilogram \[mg/kg\]) every 2 week (Q2W). An expansion stage will be initiated after establishment of maximum tolerated dose (MTD) in dose escalation stage. Participants with refractory or recurrent metastatic colorectal cancer (CRC), non-small cell lung cancer (NSCLC), head and neck squamous cell carcinoma (HNSCC), and pancreatic cancer will be enrolled in an expansion stage to better characterize the safety, tolerability, PK and preliminary assessment of the anti-tumor activity of MEHD7945A.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
66
MEHD7945A will be administered as specified in the individual arms.
Uni of Colorado Cancer Center; Anschutz Cancer Pavilion
Aurora, Colorado, United States
Massachusetts General Hospital.
Boston, Massachusetts, United States
University of Texas M.D. Anderson Cancer Center
Houston, Texas, United States
Hospital Univ Vall d'Hebron; Servicio de Oncologia
Barcelona, Spain
HOSPITAL DE MADRID NORTE SANCHINARRO- CENTRO INTEGRAL ONCOLOGICO CLARA CAMPAL; Servicio de Oncologia
Madrid, Spain
Hospital Clinico Universitario de Valencia
Valencia, Spain
Percentage of Participants With Dose-Limiting Toxicities (DLTs) of MEHD7945A
Time frame: Days 1-28
Maximum Tolerated Dose (MTD) of MEHD7945A
Time frame: Days 1-28
Percentage of Participants With Adverse Events
Time frame: Baseline up to approximately 6.75 years
Percentage of Participants With Anti-MEHD7945A Antibodies
Time frame: Baseline up to approximately 6.75 years (assessed at predose [0 to 4 hours {Hr}] on Day 1 [D1] of Cycles [Cy] 1, 2, 4 [1 Cycle: 14 days], at the study completion/early termination (ET) visit [up to approximately 6.75 years])
Area Under the Concentration-Time Curve (AUC) of MEHD7945A
Time frame: Predose (0-4 Hr), 0.5, 4, 24, 72Hr post Cy1 D1 dose (infusion duration=1.5 Hr); Day 8 of Cy 1, 2, 4; predose, 0.5 Hr postose on Day 1 of Cy2, 3, 4, 6, every 4 Cy thereafter (up to Cy16); study completion/ET (approximately 6.75 years) (Cy=14 days)
Maximum Serum Concentration (Cmax) of MEHD7945A
Time frame: Predose (0-4 Hr), 0.5, 4, 24, 72Hr post Cy1 D1 dose (infusion duration=1.5 Hr); Day 8 of Cy 1, 2, 4; predose, 0.5 Hr postose on Day 1 of Cy2, 3, 4, 6, every 4 Cy thereafter (up to Cy16); study completion/ET (approximately 6.75 years) (Cy=14 days)
Minimum (Trough) Concentration (Cmin) of MEHD7945A
Time frame: Predose (0 to 4 hours) on D1 of Cy1,2,3,4,6, every 4 Cy thereafter (up to Cy16 ); study completion/ET (up to approximately 6.75 years) (Cy=14 days)
Clearance (Cl) of MEHD7945A
Time frame: Predose (0-4 Hr), 0.5, 4, 24, 72Hr post Cy1 D1 dose (infusion duration=1.5 Hr); Day 8 of Cy 1, 2, 4; predose, 0.5 Hr postose on Day 1 of Cy2, 3, 4, 6, every 4 Cy thereafter (up to Cy16); study completion/ET (approximately 6.75 years) (Cy=14 days)
Volume of Distribution at Steady State (Vss) of MEHD7945A
Time frame: Predose (0-4 Hr), 0.5, 4, 24, 72Hr post Cy1 D1 dose (infusion duration=1.5 Hr); Day 8 of Cy 1, 2, 4; predose, 0.5 Hr postose on Day 1 of Cy2, 3, 4, 6, every 4 Cy thereafter (up to Cy16); study completion/ET (approximately 6.75 years) (Cy=14 days)
Half-Life (t1/2) of MEHD7945A
Time frame: Predose (0-4 Hr), 0.5, 4, 24, 72Hr post Cy1 D1 dose (infusion duration=1.5 Hr); Day 8 of Cy 1, 2, 4; predose, 0.5 Hr postose on Day 1 of Cy2, 3, 4, 6, every 4 Cy thereafter (up to Cy16); study completion/ET (approximately 6.75 years) (Cy=14 days)
Accumulation Ratio of MEHD7945A
Time frame: Predose (0-4 Hr), 0.5, 4, 24, 72Hr post Cy1 D1 dose (infusion duration=1.5 Hr); Day 8 of Cy 1, 2, 4; predose, 0.5 Hr postose on Day 1 of Cy2, 3, 4, 6, every 4 Cy thereafter (up to Cy16); study completion/ET (approximately 6.75 years) (Cy=14 days)
Recommended Phase 2 Dose (RP2D) of MEHD7945A
Time frame: Days 1-28
Percentage of Participants With an Objective Response (Complete Response [CR] or Partial Response [PR]) Assessed by the Investigator Using Response Evaluation Criteria in Solid Tumors Version 1.0 (RECIST V1.0)
Time frame: From the first study treatment (Cy1 D1, 1 Cy=14 days) to first occurrence of progression or death within 60 days of the last administration of study drug, whichever occurs first (up to approximately 6.75 years)
Duration of Objective Response (CR or PR) Assessed by the Investigator Using Response Evaluation Criteria in Solid Tumors Version 1.0 (RECIST V1.0)
Time frame: First occurrence of a documented objective response until the time of relapse or death within 60 days of the last administration of study drug, whichever occurs first (up to approximately 6.75 years)
Progression-Free Survival (PFS) Assessed by the Investigator Using Response Evaluation Criteria in Solid Tumors Version 1.0 (RECIST V1.0)
Time frame: From the first study treatment (Cy1 D1, 1 Cy = 14 days) to first occurrence of progression or death within 60 days of the last administration of study drug, whichever occurs first (up to approximately 6.75 years)
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.