Tissue Procurement Substudy for Participants in Study CP-MGA271-01

Inclusion Criteria:

Qualified, by meeting all inclusion and exclusion criteria, for participation in Study CP-MGA271-01.
Must have provided informed consent to participate in Study CP-MGA271-01.
Must have accessible tumors (generally speaking, metastatic deposits involving skin, subcutaneous tissue, or peripheral lymph node whose excision, punch biopsy, or core needle biopsy would not require general anaesthesia or the invasion of a body cavity).
Willing to undergo two minor surgical procedures with no expectation of personal benefit
Have provided Informed Consent for this substudy as indicated by a signature on an approved consent document obtained from the patient or his/her legally authorized representative

Exclusion Criteria:

Any medical condition that would contraindicate the use of local or locoregional anaesthesia, or conscious sedation for the intended minor surgical procedure.
Any medical condition (eg. skin disease or bleeding diathesis) that would hinder wound healing following a minor surgical procedure.
Dementia or altered mental status that would preclude understanding and rendering of informed consent.