
An Instant Poll on Drug Topics' Web site, posted in February, found that most respondents think that Tysabri (natalizumab, Biogen Idec) should be brought back to the market. Out of 145 people who voted, 68% said the multiple sclerosis agent should be brought back but with new warnings added, 16% said it should be restored with no new restrictions added, only 10% said it should not be returned to market, and 6% said they didn't know whether FDA should let it come back.