Pre-trial data showed that TGN1412 was a high-risk compound
Information submitted to regulators showed that the compound used in the catastrophic Northwick Park trial in March was a high-risk compound unlikely to be suitable for administration to healthy people, a review claims (Lancet 2006;368:1387).
Researchers examined all the data available before the beginning of the
trial of TGN1412 at Northwick Park Hospital, north London, a trial which
led to six
men being admitted to intensive care (PJ, 18 March,
p307).
The risk analysis shows that essential information was absent and the
antibody was a high-risk compound unlikely to be suitable for administration
to healthy people without additional preclinical experiments. The researchers
suggest that in vitro tests and a comparison of human, rhesus monkey,
and cynomolgus monkey DNA sequences for the target of TGN1412 should
have been included in the research file and, if not, should have led
to questions from all involved in the clinical trial. |