A Study of Necitumumab and Abemaciclib in Participants With Non-Small Cell Lung Cancer (NSCLC)

A DLT was defined as one of the following adverse events (AEs), occurring in Cycle 1 if considered to be definitely, probably, or possibly related to necitumumab and abemaciclib: Grade 3 or 4 nonhematologic toxicity according to the National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (NCI-CTCAE v4.0), except for nausea, vomiting, diarrhea, or electrolyte disturbance. Grade 3 or 4 nausea, vomiting, or diarrhea that persists more than 2 days despite maximal supportive intervention. Grade 3 thrombocytopenia with bleeding requiring transfusion. Grade 4 thrombocytopenia with or without bleeding. Grade 4 neutropenia that persists more than 5 days.

PFS is defined as the time from baseline until first observation of progressive disease(PD) defined by response evaluation criteria in solid tumors (RECIST) v1.1 or death from any cause.PD was at least 20% increase in sum of diameters of target lesions with reference being smallest sum on study and an absolute increase of at least 5 millimeter (mm) or unequivocal progression of non-target lesions,or 1 or more new lesions.If participant does not have complete baseline disease assessment,PFS time censored at date of randomization, regardless of whether or not objectively determined disease progression or death observed for participant.If participant was not known to have died or have objective progression as of data inclusion cutoff date for analysis, the PFS time censored at last adequate tumor assessment date.The use of new anticancer therapy prior to occurrence of PD resulted in censoring at the date of last radiographic assessment prior to initiation of new therapy.

ORR was the percentage of participants achieving a best overall response of complete response (CR) or partial response (PR) as per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. CR defined as the disappearance of all target and non-target lesions and no appearance of new lesions. PR defined as at least a 30% decrease in the sum of the longest diameters (LD) of target lesions (taking as reference the baseline sum LD), no progression of nontarget lesions, and no appearance of new lesions. PD was at least a 20% increase in the sum of the diameters of target lesions, with reference being the smallest sum on study and an absolute increase of at least 5 mm, or unequivocal progression of non-target lesions, or 1 or more new lesions. Confidence intervals are based on Clopper-Pearson method.

Predose necitumumab concentration data following doses of 800 mg administered Day 1 and 8 of a 3-week cycle as an intravenous (IV) infusion over 60 minutes.

Maximum necitumumab concentration data following doses of 800 mg administered Day 1 and 8 of a 3-week cycle as an intravenous (IV) infusion over 60 minutes.

Pharmacokinetics (PK): Maximum Concentration (Cmax) of Abemaciclib summary of LSN3106729 noncompartmental PK parameters after twice daily oral dose of Abemaciclib.

Pharmacokinetics (PK): Area Under the Concentration Time Curve (AUC) From Zero to the Last Time Point (AUC[0-tlast]) summary of LSN3106729 noncompartmental PK parameters after twice daily oral dose of Abemaciclib. (tlast = 10 hours)

Disease Control Rate (DCR) is defined as the percentage of participants achieving a best overall response of stable disease (SD), PR, or CR. DCR used the same denominator as defined in ORR. Among participants counted in the denominator, the numerator counted those with a confirmed best tumor response of SD, PR, or CR per RECIST v1.1. Confidence intervals are based on Clopper-Pearson method.

Overall survival (OS) is defined as the time from the date of study enrollment to the date of death from any cause. For each participant who is not known to have died as of the data -inclusion cutoff date for a particular analysis, OS was censored for that analysis at the last known alive date.