Genesis
The historical progress of Cialis :
- 1993: Pharmaceutical co. ICOS started its research on a compound IC351
that inhibits the PDE5 enzyme.
- 1994: Icos receives its first patent on IC351.
- 1995: First phase of clinical trials begun.
- 1997: Icos conducted the first study in patients with erectile
dysfunction problem.
- 1998: Icos and Eli Lilly and Co. form a joint venture to commercialize
drugs for the treatment of sexual dysfunction.
- 1999: Phase III clinical studies begin on IC351.
- 2001: New drug application is filed with the U.S. Food and Drug Administration
for IC351. The company renames the drug Cialis.
- April 2002: FDA reviews drug application, saying the company must
complete more clinical studies, resolve manufacturing issues and complete
labeling.
- November 2002: Cialis gets European approval.
- February 2003: Marketing of Cialis begins in Europe .
- 21st November 2003: US FDA approves Cialis in United States for usage.
- December 2003: Cialis is likely to be available for sale from December.
- January 2004 : Cialis Available in USA .
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