Barry N. Rosloff, Ph.D.

                                                                                                                       9/29/94

 

 

Pharmacologist Review of NDA 20-358

Original Summary

 

 

SPONSOR:            Burroughs Wellcome Co.

                                3030 Cornwallis Road

                                Research Triangle Park, NC 27709

 

DRUG:                    bupropion (Wellbutrin®) sustained release tablets

 

CATEGORY:         antidepressant

 

RELATED NDA: NDA 18-644 (NDA for marketed immediate release formulation, same sponsor as present).

 

NEW PRECLINICAL STUDIES SUBMITTED:

 

(N.B. These studies were performed as bridging studies to support the sustained release formulation; see “Summary” section for details.)

 

1)       90 day p.o. toxicity in rats

 

-          Performed by sponsor

-          BIN numbers IN2730 and 3M2498A for degraded and undegraded drug, resp.

 

2)       Segment II reproduction in rats

 

-          Performed by Research Triangle Institute

Research Triangle Park, NC 27709-2194

 

-          BIN numbers 3U6028A, B, and C for degraded drug and 3U6029 for undegraded drug.

 

3)       Ames tests

 

-          Performed by (whited out)

 

-          BIN used not stated; analysis sheets give BIN numbers 3X6011 A-F for “Wellbutrin plus degradants” but it is not clear if these were used in the studies.

 

4)       In vivo cytogenetic study in rats

 

-          Performed by sponsor and by (whited out)

 

-          BIN number 3U6007E (not clear if this applies to degraded or undegraded drug).

 

 


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