ORR was defined as the percentage of participants with the best overall confirmed response of complete response (CR) or partial response (PR) according to the appropriate response assessment criteria including Response Evaluation Criteria in Solid Tumors (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) for the disease setting as assessed by the Investigator. CR or PR was confirmed at a subsequent scan (>=4 weeks) if the criteria for each are met . The exact 95% confidence intervals (CIs) were calculated using Clopper-Pearson method.

Efficacy Analysis Set comprises of all participants who received at least one dose of study drug and have measurable disease as determined by the Investigator at baseline.

An adverse event (AE) is any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An serious adverse event (SAE) is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect or any other situation according to medical or scientific judgment. An AE is considered to be treatment-emergent if it has a start date/time on or after the first administration of study drug until 30 days after the last dose of study drug and before the start of subsequent therapy, whichever comes earlier. The distribution of AEs was analyzed by the type, frequency and severity for TEAEs.

Safety Analysis Set comprises of all patients enrolled in the study who receive at least one dose of study drug.

Blood samples were collected for the analysis of following hematology parameters: anemia, neutrophil count decreased and white blood cell decreased. Grade 1 (G1): mild; Grade 2 (G2): moderate; Grade 3 (G3): severe; Grade 4 (G4) life-threatening or disabling. Higher grade indicates greater severity and an increase in CTCAE grade was defined relative to the Baseline grade. Any worst-case post baseline increase to G2, G3, and G4 are presented. The laboratory parameters were graded according to Common Terminology Criteria for Adverse Events (CTCAE) version 5.

Safety Analysis Set comprises of all patients enrolled in the study who receive at least one dose of study drug.

Blood samples were collected for the analysis of following chemistry parameters: creatine phosphokinase (CPK) increased, hypokalemia, hypoalbuminemia, hypercalcemia, hypocalcemia and hyponatremia. Grade 1 (G1): mild; Grade 2 (G2): moderate; Grade 3 (G3): severe; Grade 4 (G4) life-threatening or disabling. Higher grade indicates greater severity and an increase in CTCAE grade was defined relative to the Baseline grade. Any worst-case post baseline increase to G2, G3, and G4 are presented. The laboratory parameters were graded according to CTCAE version 5.

Safety Analysis Set comprises of all patients enrolled in the study who receive at least one dose of study drug.

Duration of response was defined as the interval from the date of the first documentation of tumor response (CR or PR) that was subsequently confirmed by investigator assessment to the date of first occurrence of radiographic disease progression based on RECIST 1.1 or RANO criteria or death due to any cause, whichever occurs earlier. DOR was estimated using Kaplan-Meier method.

Participants in the Efficacy Analysis Set who have a confirmed response of CR or PR.

Progression free survival was defined as the interval from the date of the first dose to the first occurrence of radiographic disease progression based on RECIST 1.1 or RANO criteria or death due to any cause, whichever occurs earlier. Progression free survival was estimated using Kaplan-Meier method.

Efficacy Analysis Set comprises of all participants who received at least one dose of study drug and have measurable disease as determined by the Investigator at baseline.

Overall survival is defined as the interval from the date of the first dose until the recorded date of death due to any cause. Overall survival was estimated using Kaplan-Meier method.

Efficacy Analysis Set comprises of all participants who received at least one dose of study drug and have measurable disease as determined by the Investigator at baseline.

Time to Response was defined in participants with best overall response of complete response or partial response as determined by Investigator. It is the interval from the date of the first dose to date of first documentation of tumor response that was subsequently confirmed by investigator assessment.

Participants in the Efficacy Analysis Set who have a confirmed response of CR or PR were analyzed.