If you are found to be eligible to take part in this study, you will take lenalidomide capsules each morning, with or without food. Take lenalidomide capsules whole, with a 4-ounce (1/2 cup) glass of water at the same time each day. Do not break, chew, or open the capsules. If you miss a dose of lenalidomide, take it as soon as you remember on the same day. If you miss taking your dose for the entire day, take your regular dose the next scheduled day (do NOT take double your regular dose to make up for the missed dose).