To evaluate safety, tolerability, PK, and preliminary efficacy of AMG 510 PO QD in subjects of Chinese descent with KRAS p.G12C-mutant advanced/metastatic solid tumors.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
12
Subjects will be enrolled and will receive AMG 510 PO QD.
University of Hong Kong, Queen Mary Hospital
Hong Kong, Hong Kong
Prince of Wales Hospital
Shatin, New Territories, Hong Kong
Veterans General Hospital - Taichung
Taichung, Taiwan
National Taiwan University Hospital
Taipei, Taiwan
Number of Participants With Dose-limiting Toxicities (DLT)
DLTs were defined as any of the following adverse events (AEs) where a relationship to sotorasib could not be ruled out. Hematological toxicity * febrile neutropenia * neutropenic infection * grade 4 neutropenia * grade ≥ 3 thrombocytopenia for \> 7 days * grade 3 thrombocytopenia with grade ≥ 2 bleeding * grade 4 thrombocytopenia * grade 4 anemia. Non-hematological toxicity * grade ≥ 4 vomiting or diarrhea * grade 3 diarrhea or grade 3 vomiting lasting more than 3 days despite optimal medical support * grade ≥ 3 nausea for 3 days or more despite optimal medical support * any other grade ≥ 3 adverse event.
Time frame: Day 1 to Day 21
Number of Participants With Treatment-emergent AEs (TEAEs)
An AE was any untoward medical occurrence in a clinical study participant irrespective of a causal relationship with the study treatment. A TEAE was defined as an AE starting on or after first dose of study treatment. Treatment-related TEAEs were any TEAEs considered related to investigational product by the investigator. If relationship was missing, the event was assumed treatment-related. Clinically significant changes from the participant's baseline values in vital signs, 12-lead electrocardiograms, and clinical laboratory safety tests were reported as AEs.
Time frame: Day 1 until the end of study (or primary data cut-off date for ongoing participants); median [min, max] duration was 5.57 [1.5, 13.7] months
Maximum Observed Plasma Concentration (Cmax) of Sotorasib
Pharmacokinetic (PK) parameters were determined from the concentration-time profile using standard non-compartmental approaches and considering the profile over the complete sampling interval.
Time frame: Pre-dose and 0.25, 0.5, 1, 2, 4, 6, and 24 hours post-dose on Days 1 and 8
Time to Achieve Cmax (Tmax) of Sotorasib
PK parameters were determined from the concentration-time profile using standard non-compartmental approaches and considering the profile over the complete sampling interval.
Time frame: Pre-dose and 0.25, 0.5, 1, 2, 4, 6, and 24 hours post-dose on Days 1 and 8
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Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24h) of Sotorasib
PK parameters were determined from the concentration-time profile using standard non-compartmental approaches and considering the profile over the complete sampling interval.
Time frame: Pre-dose and 0.25, 0.5, 1, 2, 4, 6, and 24 hours post-dose on Days 1 and 8
Objective Response (OR)
Measured by computed tomography (CT) or magnetic resonance imaging (MRI). Assessed per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 guidelines.
Time frame: Day 1 until the end of study (approximately 12 months)
Duration of Response (DoR)
Measured by CT or MRI. Assessed per RECIST version 1.1 guidelines.
Time frame: Day 1 until the end of study (approximately 12 months)
Progression-free Survival (PFS)
Measured by CT or MRI. Assessed per RECIST version 1.1 guidelines.
Time frame: Day 1 until the end of study (approximately 12 months)
Disease Control Rate (DCR)
Measured by CT or MRI. Assessed per RECIST version 1.1 guidelines.
Time frame: Day 1 until the end of study (approximately 12 months)
Time to Response (TTR)
Measured by CT or MRI. Assessed per RECIST version 1.1 guidelines.
Time frame: Day 1 until the end of study (approximately 12 months)
Duration of Stable Disease
Measured by CT or MRI. Assessed per RECIST version 1.1 guidelines.
Time frame: Day 1 until the end of study (approximately 12 months)