Lenalidomide and Dacarbazine (DTIC) in Patients With Metastatic Melanoma

Inclusion Criteria:

* Patients must meet all of the following inclusion criteria to be eligible for enrollment into the study: Understand and voluntarily sign an informed consent document.
* Age \>/= 18 years at the time of signing Informed Consent.
* Be able to adhere to the study visit schedule and other protocol requirements.
* Histological documentation of malignant melanoma with evidence of metastatic disease.
* For the 10 patients enrolled at the MTD, at least one measurable lesion must be present.
* ECOG performance status of 0,1,2.
* Laboratory tests within these ranges: a) Absolute neutrophil count \>/= 1,500/microliter b) Platelet count \>/= 100,000/microliter, c) Serum creatinine \</= 1.5 mg/dL, d) Total bilirubin \</= 1.5 mg/dL, e) AST (SGOT)/ALT (SGPT) \</= 2 x upper limit of normal (ULN)
* Females of childbearing potential (FCBP)† must agree to use two reliable forms of contraception simultaneously or to practice complete abstinence from heterosexual intercourse during the following time periods related to this study. FCBP must have two negative pregnancy tests (sensitivity of at least 50 mIU/mL) prior to starting study drug. Male Subjects: Must agree to use a latex condom during sexual contact with females of childbearing potential while participating in the study and for at least 28 days following discontinuation from the study even if he has undergone a successful vasectomy.
* All acute toxic effects (excluding alopecia) of any prior therapy must have resolved to \< or = to grade 1 (NCI CTCAE v3.0). (not listed in protocol synopsis)
* Patients must be able to take medications orally.

Exclusion Criteria:

* The presence of any of the following will exclude a patient from study enrollment: Pregnant or lactating females.
* Any serious medical condition, including psychiatric illnesses that will prevent the patient from signing the informed consent or place the patient at an unacceptable risk if he/she participates in the study.
* Prior treatment with systemic chemotherapy. Patients who have received prior immunotherapy, including thalidomide, or radiotherapy remain eligible. Lesions within a prior field of radiation may only be used as indicator lesions if there has been evidence of disease progression at that site.
* Prior history of malignancies (except for basal cell or squamous cell carcinoma of the skin or carcinoma in situ of the cervix or breast) unless the patient has been free of the disease for at least 3 years.
* Use of thalidomide or biologic response modifier therapy within 14 days of Day 1, Cycle 1.
* Prior \>/= grade-2 allergic reaction to thalidomide.
* Prior desquamating rash while taking thalidomide.
* Any prior use of CC-5013.
* Concurrent use of any other anti-cancer agents.
* Radiation or surgical treatment of melanoma within 28 days of starting study treatment.
* Active infection.
* Central nervous system (CNS) metastases.
* Patients with \>/= grade-2 neuropathy.
* Patients with known HIV positivity or AIDS-related illness.