Adverse events

Participants with histologically confirmed cutaneous advanced or metastatic melanoma (Stage IIIC or Stage IV), with a BRAF (a human gene encoding for protein called B-Raf, which is involved in a signaling pathway and is important for cell growth) V600 E/K mutation-positive tumor sample as determined via the central BRAF mutation assay, received a Trametinib 2 milligram (mg) tablet once daily until disease progression, death, or withdrawal.

Participants with histologically confirmed cutaneous advanced or metastatic melanoma (Stage IIIC or Stage IV), with a BRAF V600 E/K mutation-positive tumor sample as determined via the central BRAF mutation assay, received an intravenous (IV) dose of Dacarbazine 1000 mg per square meter every 3 weeks or Paclitaxel 175 mg per square meter every 3 weeks at the discretion of the investigator, provided the participant had not received that type of chemotherapy before randomization, until disease progression, death, or withdrawal.

Participants randomized to chemotherapy and who did not receive subsequent anti-cancer therapy after discontinuing chemotherapy were allowed to cross-over to Trametinib and received 2 mg tablet once daily until disease progression, death or withdrawal.