SWOG clinical trial number
SWOG-9043
Phase III Randomized Trial of Beta Carotene vs. Placebo in Prevention of Second Primaries in Stages I and II Head and Neck Cancer
Closed
Phase
Accrual
5%
Abbreviated Title
Phase III Randomized Trial of Beta Carotene vs. Placebo in Prevention of Second Primaries in Stages I and II Head and Neck Cancer
Activated
09/01/1993
Closed
11/01/1994