A Study of Two Different Dose Combinations of Nivolumab in Combination With Ipilimumab in Subjects With Previously Untreated, Unresectable or Metastatic Melanoma

The percentage of participants who experienced at least 1 AE of Grade 3 or higher, judged to be related to study drug by the investigator, and with onset on or after the first dose of study treatment and within 30 days of the last dose of study treatment. AE grade was defined using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 4.0 criteria.

The percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR). BOR is defined as the best response, as determined by the investigator, recorded between the date of randomization and the date of progression per RECIST 1.1 or the date of subsequent anticancer therapy, whichever occurred first. For subjects without documented progression or subsequent therapy, all available response designations will contribute to the BOR assessment. Tumor assessments are scheduled at Week 12 following randomization, every 8 weeks for the first 12 months and then every 12 weeks until disease progression. 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.

The time between the date of randomization and the date of death due to any cause. A participant who has not died will be censored at the last known alive date. OS will be followed continuously while participants are on the study drug and every 3 months via in-person or phone contact after participants discontinue the study drug. Based on Kaplan-Meier Estimates.

The time between the date of randomization and the first date of documented progression, determined by the investigator, or death due to any cause, whichever occurs first. Participants who die without a reported progression will be considered to have progressed on the date of their death. Those who did not progress or die will be censored on the date of their last evaluable tumor assessment. Participants without on study tumor assessments and who did not die will be censored on their date of randomization. Participants who started anti-cancer therapy without a prior reported progression will be censored on the date of their last evaluable tumor assessment prior to the initiation of subsequent anti-cancer therapy. Based on Kaplan-Meier Estimates. Progression is defined as at least a 20% increase in the sum of diameters of target lesions. 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).

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Physical Functioning Scale sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Role Functioning Scale sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Emotional Functioning Scale sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Cognitive Functioning Scale sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Social Functioning Scale sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The EORTC QLQ-C30 comprises 6 functional scales (role function, physical functioning, cognitive functioning, emotional functioning, social functioning and global quality of life) as well as nine symptom scales (fatigue, pain, nausea/vomiting, dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties). With the exception of 2 items included in the global health/quality of life scale, for which responses range from 1 (Very poor) to 7 (Excellent), item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores for all functional scales and Global Health Status indicate better HRQoL; an increase from baseline indicates improvement in HRQoL compared to baseline.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Dyspnea sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Insomnia sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Appetite loss sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Constipation sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Diarrhea sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points.

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Financial difficulties sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Fatigue sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Nausea and Vomiting sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points for the various scales of the EORTC QLQ-C30

Health Related Quality of Life (HRQoL) was assessed using the EORTC QLQ-C30 questionnaire. The Pain sub-scale item responses range from 1 (Not at all) to 4 (Very much). Raw scores for the EORTC QLQ-C30 are transformed to a 0-100 metric such that higher scores indicate a higher level of symptoms; lower scores indicating lesser burden and improved symptoms or quality of life. A clinically meaningful change in score may be regarded as 10 points