While backing the use of ciprofloxacin and Ortho-McNeil-Janssen Pharmaceuticals Inc.’s Levaquin (levofloxacin) for pneumonic plague in twin unanimous votes held a day apart, close questioning from members of FDA's Anti-Infective Drugs Advisory Committee signaled that they would hold studies conducted under the Animal Rule to at least as high a standard as human clinical trials in the future.
Cipro and Levaquin for pneumonic plague would be only the third and fourth drugs FDA has approved under the Animal Rule, which was enacted following the anthrax attacks of autumn 2001 to allow drugs to be tested in