Study of MLN2480 in Participants With Relapsed or Refractory Solid Tumors Followed by a Dose Expansion in Participants With Metastatic Melanoma

Dose Escalation Phase: participants will receive MLN2480 orally in escalating doses every other day or once weekly for three weeks of a 28-day cycle. Participants may continue treatment for additional cycles (up to 12 months) until disease progression, unacceptable toxicity, or the participant discontinues for any other reason. If it is determined that a participant would derive benefit from continued therapy beyond 12 months treatment may continue. Dose Expansion Phase: Participants will take MLN2480 at the maximum tolerated dose orally every other day or once weekly for three weeks of a 28-day cycle until disease progression, unacceptable toxicity, or the participant discontinues for any other reason. The maximum duration of treatment is 1 year unless determined that a participant would derive benefit from continued therapy beyond 12 months.