Catalyst Pharmaceutical Partners, Inc.
355 Alhambra Circle
Suite 1370
Coral Gables, Florida 33134
December 15, 2010
VIA EDGAR
Securities and Exchange Commission
Division of Corporation Finance
100 F Street
Washington, DC 20549
Attn: Jeffrey Reidler, Assistant Director
| Re: | Catalyst Pharmaceutical Partners, Inc. |
| Registration Statement on Form S-3, File No. 333-170945 |
Ladies and Gentlemen:
Pursuant to Rule 461 under the Securities Act of 1933, as amended, Catalyst Pharmaceutical Partners, Inc. (the “Company”) requests that the effectiveness of the above-referenced Registration Statement be accelerated to 4:30 p.m. on Wednesday, December 15, 2010, or as soon as possible thereafter.
The Company acknowledges that:
| • | should the Commission or the staff, acting pursuant to delegated authority, declare the filing effective, it does not foreclose the Commission from taking any action with respect to the filing; |
| • | the action of the Commission or the staff, acting pursuant to delegated authority, in declaring the filing effective, does not relieve the Company from its full responsibility for the adequacy and accuracy of the disclosures in the filing; and |
| • | the Company may not assert staff comments and the declaration of effectiveness as a defense in any proceeding initiated by the Commission or any person under the federal securities laws of the United States. |
| Sincerely, |
| /s/ Patrick J. McEnany |
| Patrick J. McEnany President, Chairman and Chief Executive Officer |