The proportion of participants remaining progression free and surviving at 6 months. Participants who did not progress or die will be censored on the date of their last evaluable tumor assessment. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Note: the appearance of one or more new lesions is also considered progression.

All Randomized Participants

The proportion of participants remaining progression free and surviving at 6 months. Participants who did not progress or die will be censored on the date of their last evaluable tumor assessment. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Note: the appearance of one or more new lesions is also considered progression.

All Randomized Participants

The proportion of participants remaining progression free and surviving at 6 months. Participants who did not progress or die will be censored on the date of their last evaluable tumor assessment. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Note: the appearance of one or more new lesions is also considered progression.

All Randomized Participants

The proportion of participants remaining progression free and surviving at 6 months. Participants who did not progress or die will be censored on the date of their last evaluable tumor assessment. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Note: the appearance of one or more new lesions is also considered progression.

All Randomized Participants

The proportion of participants remaining progression free and surviving at 12 months. Participants who did not progress or die will be censored on the date of their last evaluable tumor assessment. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.

Complete Response (CR): Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to < 10 mm.

Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Stable Disease (SD): Neither sufficient shrinkage from the baseline study to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study.

All Randomized Participants

The proportion of participants alive at 12 months. OS is defined as time from the date of randomization to the date of death. Participants who did not die by the end of the study will be censored at the last known date alive.

All Randomized Participants with a response at 12 months

The proportion of participants alive up to 60 months. OS is defined as time from the date of randomization to the date of death. Participants who did not die by the end of the study will be censored at the last known date alive.

All Randomized Participants

The proportion of participants alive at 12 months. OS is defined as time from the date of randomization to the date of death. Participants who did not die by the end of the study will be censored at the last known date alive.

OS rate by histology did not have data collected after 12 months randomization.

All Randomized Participants

The proportion of participants alive at 12 months. OS is defined as time from the date of randomization to the date of death. Participants who did not die by the end of the study will be censored at the last known date alive.

Complete Response (CR): Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to < 10 mm.

Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Stable Disease (SD): Neither sufficient shrinkage from the baseline study to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study.

OS rate by response did not have data collected after 12 months randomization.

All Randomized Participants

Percentage of participants with an Adverse Event due to any cause

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation participant administered study drug and that does not necessarily have a causal relationship with this treatment.

All Treated Participants

Percentage of participants with an Serious Adverse Event due to any cause.

A Serious Adverse Event (SAE) is any untoward medical occurrence that at any dose:

1. results in death
2. is life-threatening (defined as an event in which the subject was at risk of death at the time of the event; it does not refer to an event which hypothetically might have caused death if it were more severe)
3. requires inpatient hospitalization or causes prolongation of existing hospitalization
4. results in persistent or significant disability/incapacity
5. is a congenital anomaly/birth defect
6. is an important medical event (defined as a medical event(s) that may not be immediately life-threatening or result in death or hospitalization but, based upon appropriate medical and scientific judgment, may jeopardize the participant or may require intervention [eg, medical, surgical] to prevent one of the other serious outcomes listed in the definition above.)

All Treated Participants

Percentage of Participants with an Adverse Event leading to discontinuation (AEsDC) due to any cause.

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation participant administered study drug and that does not necessarily have a causal relationship with this treatment.

All Treated Participants

Percentage of Participants with an Immune Mediated Adverse Events treated with Immune-Modulating Medication

All Treated Participants

Percentage of Participants with an Select Adverse Event due to any cause

Select adverse events include adverse events in the following systems: Gastrointestinal, Hepatic, Pulmonary, Renal, Skin, Hypersensitivity/Infusion reaction and Endocrine.

All Treated Participants

Other ESI included the following categories: demyelination, encephalitis, Guillain-Barré syndrome (GBS), myasthenic syndrome, pancreatitis, uveitis, myositis, myocarditis, rhabdomyolysis, and Graft Versus Host Disease (GVHD).

All Treated Participants

Percentage of Participants who experienced Death due to any cause

All Treated Participants

Number of participants with any laboratory test result that is clinically significant or meets the definition of an SAE (Grade 3+4 combined)

All Treated Participants