SuperGen, Inc. Announces 2006 First Quarter Financial Results Webcast

DUBLIN, Calif., April 13 /PRNewswire-FirstCall/ -- SuperGen, Inc. today announced that the company will issue its 2006 first quarter financial results on Thursday, April 20, 2006 at 4:00 p.m. EDT. SuperGen will host a conference call with the financial community to discuss operational and financial results for the three months ended March 31, 2006 and any revised outlook for the future. A live webcast of this conference call will begin at 4:30 p.m. EDT on Thursday, April 20, 2006.

This call is being webcast by CCBN and can be accessed in the Investor Relations section of SuperGen’s web site at http://www.supergen.com. A replay will be available in the same location for 90 days following the call.

The webcast is also being distributed over CCBN’s Investor Distribution Network to both institutional and individual investors. Individual investors can listen to the call through CCBN’s individual investor center at http://www.fulldisclosure.com or by visiting any of the investor sites in CCBN’s Individual Investor Network. Institutional investors can access the call via CCBN’s password-protected event management site, StreetEvents (http://www.streetevents.com).

About SuperGen

Based in Dublin, California, SuperGen is a pharmaceutical company dedicated to the discovery, acquisition, rapid development and commercialization of therapies for solid tumors, hematological malignancies and blood disorders. SuperGen’s product portfolio includes: Nipent(R) (pentostatin for injection); Mitomycin (generic brand of Mutamycin(R)); and SurfaceSafe(R) cleaner.

For more information about SuperGen, please visit http://www.supergen.com. Contacts: SuperGen Noonan Russo Timothy L. Enns Sharon Weinstein S.V.P., Corporate Communications Director of Investor Relations & Business Development Tel: (212) 845-4271 Tel: (925) 560-0100 x111 E-mail: sharon.weinstein@eurorscg.com E-mail: tenns@supergen.com

SuperGen, Inc.

CONTACT: Timothy L. Enns, S.V.P., Corporate Communications & BusinessDevelopment, SuperGen, +1-925-560-0100 x111; Sharon Weinstein, Director ofInvestor Relations, Noonan Russo, +1-212-845-4271,sharon.weinstein@eurorscg.com, for SuperGen

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