Darby & Darby
Diketopiperazine-based delivery systems
 Compositions useful in the delivery of active agents are provided. These delivery compositions include (a) an active agent; and either (b)(1) a carrier of (i) at least one amino acid and (ii) at least one diketopiperazine or (b)(2) at least one mono-N-substituted, di-N-substituted, or unsubstituted diketopiperazine. Methods for preparing these compositions and administering these compositions are also provided. 
Emisphere Technologies, Inc.
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A61K A61K C07C C07C C07C C07C C07C C07C C07C C07C C07C C07C A61K A61K C07C
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Sam J.
Milstein