The FDA has cleared Neurelis’ Investigational New Drug application (IND) to commence clinical trials advancing the development of NRL-1, a diazepam nasal spray for the treatment of acute breakthrough seizures, according to Neurelis.

Following initial pre-IND discussions with FDA in late 2011, Neurelis filed the IND based on the encouraging human pharmacokinetic results seen when comparing absolute bioavailability of NRL-1 relative to intravenous diazepam administration in healthy subjects.  In the IND submission, Neurelis formalized plans for the remaining clinical and non-clinical requirements the FDA agreed to in the pre-IND discussions that will support the submission for marketing approval.

"We are encouraged with our interactions with the FDA and the formalization of our development plan for NRL-1.  The acceptance of the IND is a significant step in advancing the development of this important therapy," said David F. Hale, chairman of Neurelis. 

"We believe that NRL-1 has demonstrated a pharmacokinetic profile and bioavailability which has not been seen with previous attempts at the intranasal delivery of benzodiazepines,” he said. “With the successful development of NRL-1 and approval from the FDA and other regulatory agencies, we look forward to making this product available to those patients who have epilepsy and suffer from acute repetitive seizures."