The Senate Health, Education, Labor and Pensions Committee on Wednesday unanimously approved the nomination of Mark McClellan to head the Food and Drug Administration. However, Sen. Edward Kennedy (D-Mass.) will not send the nomination to the full Senate until McClellan responds to a list of questions about his plans for the federal agency. McClellan is expected to respond by the end of next week. A physician with a doctorate in medical economics, McClellan previously served as a White House health policy adviser and as a member of the Council of Economic Advisers in the current Bush administration. The full Senate is expected to confirm McClellan as FDA commissioner before Congress adjourns later this month.