This study is a Phase I, first in human, dose-escalation study of MORAb-066, an investigational humanized immunoglobulin G (IgG) monoclonal antibody (mAb) that targets TF-expressing malignancies that include breast, pancreatic, colorectal, and non-small-cell lung cancer (NSCLC) (adenocarcinoma). This open-label study will assess the safety, tolerability, and pharmacokinetics of MORAb-066 administered weekly. This study will identify the maximum tolerated dose (MTD) when MORAb-066 is administered IV once weekly on a 28-day cycle.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
27
MORAb-066 infusion.
Unnamed facility
Oklahoma City, Oklahoma, United States
Unnamed facility
Nashville, Tennessee, United States
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
Safety assessments consisted of monitoring and recording all AEs and SAEs; regular monitoring of hematology, blood chemistry, urine values, and vital signs; periodic measurement of electrocardiograms (ECGs) and Eastern Cooperative Oncology Group (ECOG) assessments; and performance of physical examinations.
Time frame: First dose of study drug (Baseline) up to 30 days after last dose of study drug (Up to approximately 2 years 7 months)
Number of Participants With Dose Limiting Toxicity (DLT)
DLT was defined using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 4.03 as any grade 3 or 4 hematemesis, hemoptysis, hematochezia, bright red blood per rectum, epistaxis, gingival bleeding, hemarthrosis, haematuria, uncontrollable menses, or any other bleeding thought to be significant as per assessment of the investigator, regardless of grade.
Time frame: Cycle 1 (Cycle length=28 days)
Maximum Tolerated Dose (MTD)
The MTD was defined as the highest dose level at which no more than one out of six participants experienced DLT. DLT was defined using NCI CTCAE Version 4.03 as any grade 3 or 4 hematemesis, hemoptysis, hematochezia, bright red blood per rectum, epistaxis, gingival bleeding, hemarthrosis, haematuria, uncontrollable menses, or any other bleeding thought to be significant as per assessment of the investigator, regardless of grade.
Time frame: Cycle 1 (Cycle length=28 days)
Cmax: Maximum Observed Serum Concentration for MORAb-066
Time frame: Cycle 1 Days 1 and 22: 0-168 hours post-dose (Cycle length=28 days)
Tmax: Time to Reach Maximum Serum Concentration for MORAb-066
Time frame: Cycle 1 Days 1 and 22: 0-168 hours post-dose (Cycle length=28 days)
t1/2: Terminal Elimination Phase Half-Life for MORAb-066
Time frame: Cycle 1 Days 1 and 22: 0-168 hours post-dose (Cycle length=28 days)
AUC(0-t): Area Under the Serum Concentration-time Curve From Zero Time to the Last Measurable Point for MORAb-066
Time frame: Cycle 1 Days 1 and 22: 0-168 hours post-dose (Cycle length=28 days)
AUC(0-Inf): Area Under the Serum Concentration-time Curve From Zero to Infinity for MORAb-066
Time frame: Cycle 1 Days 1 and 22: 0-168 hours post-dose (Cycle length=28 days)
Vd: Volume of Distribution for MORAb-066
Time frame: Cycle 1 Days 1 and 22: 0-168 hours post-dose (Cycle length=28 days)
CL: Total Body Clearance for MORAb-066
Time frame: Cycle 1 Days 1 and 22: 0-168 hours post-dose (Cycle length=28 days)
Number of Participants With Best Overall Response (BOR)
BOR based on Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 for target and non-target lesions is complete response (CR) or partial response (PR). CR: disappearance of target and non-target lesions, normalization of tumor marker level, all lymph nodes must be non-pathological in size (less than 10 millimeter \[mm\] short axis). PR: at least 30 percent (%) decrease in sum of diameters (SOD) of target lesions, taking as reference the baseline SOD persistence of one or more non-target lesions and/or maintenance of tumor marker level above the normal limits. SD: neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD), taking as reference the smallest SOD. PD: at least 20% increase (including an absolute increase of at least 5 mm) in the SOD of target lesions, taking as reference the smallest sum and/or unequivocal progression of existing non-target lesions and/or appearance of 1 or more new lesions.
Time frame: Up to approximately 2 years 7 months
Number of Participants Positive for Antidrug Antibodies (ADA)
Time frame: Up to approximately 2 years 7 months
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