Primary Outcomes

Description: Overall survival was defined as the time from date of informed consent signature until death.

Secondary Outcomes

Description: DCR was defined as those subjects achieving complete response (CR), partial response (PR) or stable disease (SD), according to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v.1.1). For target lesions (TLs), CR was defined as the disappearance of all TLs; PR was defined as at least a 30 percent (%) decrease in the sum of longest diameter (SLD) of the TLs, taking as a reference the baseline (BL) SLD; Stable disease (SD) was defined as neither sufficient decrease in SLD to qualify for PR nor sufficient increase in SLD to qualify for PD; and PD was defined as at least a 20% increase in the SLD of TLs, taking as reference the smallest SLD recorded since the treatment started. For non-target lesions (NTLs), CR was defined as the disappearance of all NTLs and normalization of tumor marker levels; SD was defined as the persistence of 1 or more NTLs and/or maintenance of tumor marker levels above normal limits; and progressive disease (PD) was defined as the appearance

Description: PFS was defined as the time from informed consent signature until PD or death, whatever occurred first. Subjects who did not have disease progression or were lost to follow-up, were censored at the date of last contact, known to be alive and progression free; moreover, those subjects who started a new treatment (different from cetuximab), were censored at the date of starting the new treatment. For TLs, PD was defined at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from BL or the appearance of one or more new lesions. For NTLs, PD was defined as the appearance of 1 or more new lesions and/or unequivocal progression of existing NTLs. Participants without second-line PD or death were censored at the date of last tumor assessment where non-progression was documented.

Description: An AE was defined as any new untoward medical occurrences/worsening of pre-existing medical condition without regard to possibility of causal relationship. A SAE was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect. Treatment-emergent are events between first dose of study drug and up to 30 days after last dose that were absent before treatment or that worsened relative to pretreatment state.

Description: The antibody fragment C portion (FCy) of cetuximab interacts with Fc-gamma receptors (FCyRs) expressed by immune effector cells. Polymorphisms were described in genes coding for FCyRIIa and in FCyRIIIa. A histidine/arginine polymorphism at position 131 for FCyRIIa gene and valine ⁄ phenylalanine polymorphism at position 158 for the FCyRIIIa gene were reported to be functionally relevant in the ADCC mechanism. All subjects were analyzed and classified as carriers of every different polymorphism of FCy Receptors: for FCyRIIa (H/H, homozygous alleles with histidine and R/H, heterozygous alleles with arginine/histidine) and FCyRIIIa (V/V, homozygous alleles with valine, F/F, homozygous alleles with phenylalanine and F/V, heterozygous alleles with valine ⁄ phenylalanine) (units: subjects with every type of polymorphism) .The FCyR genotype was determined using a TaqMan Allelic Discrimination Assay.

Description: OS was defined as the time from informed consent signature until death. Subjects without death were censored at the last date known alive (within the study).

Description: OS was defined as the time from informed consent signature until death. Subjects without death were censored at the last date known alive (within the study).

Primary Outcomes

Description: Area under the ROC curve of the mutation percentage obtained from plasma ccfDNA analysis

Primary Outcomes

Secondary Outcomes

Primary Outcomes

Description: The following toxicities graded for severity using NCI Common Terminology for Adverse Events (CTCAE), Version 4.0 will be considered a DLT if judged by the investigator to be possibly related to study investigational products: 1) Grade 4 nonhematologic toxicity (ie. not a laboratory finding). 2) Grade 4 hematologic toxicity lasting ≥ 7 days, except thrombocytopenia: 3) Grade 4 thrombocytopenia of any duration 4) Grade 3 thrombocytopenia associated with clinically significant bleeding 5) Any nonhematologic AE ≥ Grade 3 in severity, with some exceptions 6) Any Grade 3 or Grade 4 nonhematologic laboratory value that meets one of the study criteria 7) Febrile neutropenia Grade 3 or Grade 4 8) Prolonged delay (> 2 weeks) in initiating Cycle 2 due to treatment-related toxicity. 9) Any treatment-related toxicity that causes the participant to discontinue treatment during Cycle 1. 10) Grade 5 toxicity 11) Any other clinically significant toxicity judged to be a DLT by the investigator.

Description: Number of participants who experienced an AE. An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.

Description: Number of participants who discontinued from study due to an AE. An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.

Secondary Outcomes

Description: ORR is assessed by the investigator based on Response Rate Assessed by Modified Response Evaluation Criteria in Solid Tumors 1.1 (RECIST 1.1) and RECIST for immune-based therapeutics (iRECIST) following administration of V941 in combination with pembrolizumab. Objective response is a confirmed complete response (CR) or partial response (PR).

Description: Presence of and changes in the quantity of mutant KRAS specific T cells in the blood.

Other Outcomes

Description: T-cell receptor (TCR) clonality and diversity in the periphery and tumor.

Primary Outcomes

Description: Incidence and severity of AEs and SAEs

Description: Incidence and severity of AEs and SAEs

Description: Incidence of DLTs during the first cycle of treatment with BCA101 monotherapy or the combination of BCA101 and pembrolizumab.

Secondary Outcomes

Description: Determine objective response rate in each part of the study, per RECIST v1.1 and iRECIST

Description: Determine clinical benefit rate in each part of the study, per RECIST v1.1 and iRECIST

Description: Determine PFS in each part of the study, per RECIST v1.1 and iRECIST

Description: Determine duration of response in each part of the study, per RECIST v1.1 and iRECIST

Description: Determine survival rates in each part of the study.

Description: AUC

Description: Cmax

Description: Tmax

Description: Ctrough

Description: Half-life

Description: Incidence and titer of anti-drug-antibodies