Advancing SRX246 to Commericialization - PROJECT SUMMARY/ABSTRACT
SRX246, a first-in-class, orally bioavailable, CNS-active vasopressin 1a receptor antagonist, recently
was tested in an Exploratory Phase 2 clinical trial, “Safety, Tolerability, and Activity of SRX246 in Irritable
Subjects with Huntington's Disease (STAIR),” with support from an SBIR Fast Track award (5U44NS090616).
The trial, conducted in collaboration with the NINDS NeuroNext Network, met the primary, secondary, and
exploratory objectives. The data demonstrated that in HD patients, SRX246 was well tolerated, safe, and
provided clinical benefit by decreasing aggressive behavior and reducing caregiver burden in comparison to
placebo. The data support the continued development of SRX246 to address the significant unmet need for a
pharmaceutical treatment for the irritability and aggressive behavior seen in HD that are among the leading
causes of institutionalization and where there are no approved drugs. The clinical findings were the basis for
our FDA filing that recently led to an Orphan Drug designation for the treatment of HD. The development of
SRX246, which also includes a Phase 2 trial in Intermittent Explosive Disorder and an in-progress trial for the
treatment of PTSD, has been supported by grants from the NIH, the DoD, and private venture capital.
In accord with Commercialization Readiness Pilot Program requirements under PAR 19-333, this
proposal requests funds to accelerate commercialization by engaging in late-stage R&D activities that build on
the recent Exploratory Phase 2 clinical trial results in HD patients. Support is requested to meet three
objectives that address key questions the Company recently has encountered in partnering discussions with
pharmaceutical companies and private venture capital investors. The objectives are to 1) optimize a pilot plant
scale method and use it to produce a cGMP lot for Phase 3 clinical trials; 2) conduct two chronic toxicology
studies, 26 week in rat and 39 week in dog, to provide initial tests that determine whether long-term treatment
will be safe in accord with earlier 13-week toxicology and clinical studies that included up to 12 weeks of
treatment; and 3) undertake an in-Depth Market Overview and Product Positioning analysis that includes
developing a full Target Product Profile, payer discussions, and revenue forecasts as well as defining follow-on
market opportunities in one additional neurodegenerative disease where agitation, anger, excessive irritability,
and inappropriate aggression are significant problems (Alzheimer’s Disease).
Achieving these 3 objectives will further de-risk investment in SRX246 and add value, putting Azevan
Pharmaceuticals in a stronger position to accelerate commercialization of SRX246 as a treatment for
Huntington’s Disease and potentially other indications through partnering or additional venture capital
investment.