M7824 Monotherapy in Locally Advanced or Metastatic Second Line (2L) Biliary Tract Cancer (Cholangiocarcinoma and Gallbladder Cancer)

Confirmed objective response was defined as the percentage of participants with a confirmed objective response of complete response (CR) or partial response (PR). CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the sum of the longest diameter (SLD) of all lesions. Confirmed CR = at least 2 determinations of CR at least 4 weeks apart and before progression. Confirmed PR = at least 2 determinations of PR at least 4 weeks apart and before progression (and not qualifying for a CR). Confirmed objective response was determined according to RECIST v1.1 and as adjudicated by IRC.

DOR was defined for participants with confirmed response, as the time from first documentation of objective response (Complete Response [CR] or Partial Response [PR]) to the date of first documentation of progression disease (PD) or death due to any cause, whichever occurred first. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the SLD of all lesions. PD: At least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. DOR was determined according to RECIST v1.1 and assessed by IRC. Results were calculated based on Kaplan-Meier estimates.

DRR was defined as the percentage of participants with confirmed objective response (CR or PR) with duration of at least 6 months. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the SLD of all lesions. PD: At least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. DRR was determined according to RECIST v1.1 and assessed by IRC.

Adverse Event (AE) was defined any untoward medical occurrence in a participant administered with a study drug, which does not necessarily had a causal relationship with this treatment. Serious AE was defined AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial/prolonged inpatient hospitalization; congenital anomaly/birth defect. TEAEs: TEAEs was defined as events with onset date or worsening during the on-treatment period. TEAEs included serious AEs and non-serious AEs. Treatment-related TEAEs: reasonably related to the study intervention. AESIs included Infusion-related reactions, Immune-related AEs, Transforming growth factor-beta (TGF-β) inhibition mediated skin AE and anemia.

PFS was defined as the time from first administration of study intervention until the first documentation of disease progression (PD) or death due to any cause, whichever occurred first. PD: At least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Confirmed objective response was defined as the percentage of participants with a confirmed objective response of complete response (CR) or partial response (PR). CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the sum of the longest diameter (SLD) of all lesions. Confirmed CR = at least 2 determinations of CR at least 4 weeks apart and before progression. Confirmed PR = at least 2 determinations of PR at least 4 weeks apart and before progression (and not qualifying for a CR). Confirmed objective response was determined according to RECIST v1.1 and as adjudicated by Investigator.

DOR was defined for participants with confirmed response, as the time from first documentation of objective response (Complete Response [CR] or Partial Rresponse [PR]) to the date of first documentation of progression disease (PD) or death due to any cause, whichever occurred first. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the SLD of all lesions. PD: At least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. DOR was determined according to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1) and assessed by Investigator. Results were calculated based on Kaplan-Meier estimates.

DRR was defined as the percentage of participants with confirmed objective response (CR or PR) with duration of at least 6 months. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the SLD of all lesions. PD: At least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. DRR was determined according to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1) and assessed by Investigator.

PFS was defined as the time from first administration of study intervention until the first documentation of disease progression (PD) or death due to any cause, whichever occurred first. PD: At least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

OS was defined as the time from first administration of study intervention to the date of death due to any cause. The OS was analyzed by using the Kaplan-Meier method.

Ctrough was defined as the concentration observed immediately before next dosing (corresponding to pre-dose or trough concentration for multiple dosing).

Serum Concentration at End of Infusion (CEOI) of M7824 is reported.

Serum samples were analyzed by a validated assay method to detect the presence of antidrug antibodies (ADA). Number of participants with positive ADA were reported.

Confirmed objective response was defined as the percentage of participants with a confirmed objective response of complete response (CR) or partial response (PR). CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the sum of the longest diameter (SLD) of all lesions. Confirmed CR = at least 2 determinations of CR at least 4 weeks apart and before progression. Confirmed PR = at least 2 determinations of PR at least 4 weeks apart and before progression (and not qualifying for a CR). Confirmed objective response was determined according to RECIST v1.1 and as adjudicated by IRC through PD-L1 Subgroup: PD-L1 expression on tumor cells (TC) and on immune cells (IC) at baseline and in the following categories: <1%, >=1%, <5%, >=5%, <25%, >=25%, <50%, >=50% were reported.

Confirmed OR was defined as the percentage of participants with a confirmed OR of CR or PR. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the sum of the longest diameter (SLD) of all lesions. Confirmed CR = at least 2 determinations of CR at least 4 weeks apart and before progression. Confirmed PR = at least 2 determinations of PR at least 4 weeks apart and before progression (and not qualifying for a CR). Confirmed OR was determined according to RECIST v1.1 and as adjudicated by IRC through MSI Status subgroups as:- MSI High = if participant is MSI High for any (at least one) test;- Microsatellite stable (MSS) or MSI Low = if participant is not MSI High for any test;- Unknown (missing) = no MSI tests available at baseline was reported. MSI high: if 2 or more unstable markers were detected in sample; MSI low: if 1 marker was unstable and remaining markers were stable and MSS if all markers were stable.

DOR was defined for participants with confirmed response, as the time from first documentation of objective response (Complete Response [CR] or Partial Response [PR]) to the date of first documentation of progression disease (PD) or death due to any cause, whichever occurred first. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the SLD of all lesions. PD: At least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. DOR was determined according to RECIST v1.1 and as adjudicated by IRC through PD-L1 Subgroup: PD-L1 expression on tumor cells (TC) and on immune cells (IC) at baseline and in the following categories: <1%, >=1%, <5%, >=5%, <25%, >=25%, <50%, >=50% was reported.

DOR was defined for participants with confirmed response, as the time from first documentation of objective response (CR) or (PR) to the date of first documentation of PD or death due to any cause, whichever occurred first. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the SLD of all lesions. PD: At least a 20 % increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. DOR was determined according to RECIST v1.1 and as adjudicated by IRC through MSI Status subgroups as:- MSI High = if participant is MSI High for any (at least one) test;- MSS or MSI Low = if participant is not MSI High for any test;- Unknown (missing) = no MSI tests available at baseline was reported. MSI high: if 2 or more unstable markers were detected in sample; MSI low: if 1 marker was unstable and remaining markers were stable and MSS if all markers were stable.

DRR was defined as the percentage of participants with confirmed objective response (CR or PR) with duration of at least 6 months. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the SLD of all lesions. PD: At least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. DRR was determined according to RECIST v1.1 and adjudicated by IRC through PD-L1 Subgroup: PD-L1 expression on tumor cells (TC) and on immune cells (IC) at baseline and in the following categories: <1%, >=1%, <5%, >=5%, <25%, >=25%, <50%, >=50% was reported.

DRR was defined as the percentage of participants with confirmed OR (CR or PR) with duration of at least 6 months. CR: Disappearance of all evidence of target and non-target lesions. PR: At least 30% reduction from baseline in the SLD of all lesions. PD: At least a 20 % increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. DRR was determined according to RECIST v1.1 and adjudicated by IRC through MSI Status subgroups as:- MSI High = if participant is MSI High for any (at least one) test;- MSS or MSI Low = if participant is not MSI High for any test;- Unknown (missing) = no MSI tests available at baseline was reported. MSI high: if 2 or more unstable markers were detected in sample; MSI low: if 1 marker was unstable and remaining markers were stable and MSS if all markers were stable.