Dose Expansion Cohort: Number of Participants With Atleast 1 Positive Anti Drug Antibodies (ADA) Assay

Primary Expansion Cohort: NSCLC, Post-platinum Doublet

Participants with non-small cell lung cancer (NSCLC), who had progressed after 1 line of platinum-containing doublet chemotherapy received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in primary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Primary Expansion Cohort: NSCLC, First Line

Participants with non-small cell lung cancer (NSCLC), first line received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in primary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Primary Expansion Cohort: Metastatic Breast Cancer

Participants with metastatic breast cancer received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in primary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Primary Expansion Cohort: GC/GEJC Progressed

Participants with gastric and gastroesophageal cancer who progressed on or after first-line chemotherapy received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in primary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Primary Expansion Cohort: GC/GEJC Non Progressed

Participants with gastric and gastroesophageal cancer who non-progressed on or after first-line chemotherapy received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in primary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Colorectal Cancer

Participants with colorectal cancer received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Castrate-resistant Prostate Cancer

Participants with castrate-resistant prostate cancer received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Adrenocortical Carcinoma

Participants with adrenocortical carcinoma received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Melanoma

Participants with melanoma received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Mesothelioma

Participants with mesothelioma received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Urothelial Carcinoma

Participants with urothelial carcinoma received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Ovarian Cancer

Participants with ovarian carcinoma received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Renal Cell Carcinoma (First Line)

Participants with Renal cell carcinoma received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks as a first-line therapy in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Secondary Expansion Cohort: Renal Cell Carcinoma (Second Line)

Participants with Renal cell carcinoma who failed 1 prior systemic first-line regimen received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks as a second line treatment in secondary expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Efficacy Expansion Cohort: Ovarian Cancer

Participants with ovarian carcinoma received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in efficacy expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Efficacy Expansion Cohort: Urothelial Carcinoma

Participants with urothelial carcinoma received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in efficacy expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Efficacy Expansion Cohort: GC/GEJC, Third Line

Participants with gastric (GC) and gastroesophageal junction cancer (GEJC) who have failed both a first-line chemotherapy regimen and subsequent ramucirumab therapy, received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks as a third-line treatment in efficacy expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Efficacy Expansion Cohort: HNSCC

Participants with head and neck squamous cell carcinoma (HNSCC) received intravenous infusion of Avelumab at a dose of 10.0 mg/kg once every 2 weeks in efficacy expansion cohort until confirmed progression, unacceptable toxicity, or any reason for withdrawal from the trial or IMP occurs.

Analysis denominator · Participants