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Pharma Tech Outlook | Monday, April 26, 2021
Vallon is currently performing its pivotal intranasal human abuse liability review, which will be the last clinical trial until filing an NDA.
FREMONT, CA: Vallon Pharmaceuticals, a clinical-stage biopharmaceutical company, primarily focused on the development of novel drugs that are designed to deter abuse in the treatment of CNS disorders, provided a clinical program update for its lead program, ADAIR. It is a proprietary abuse-deterrent formulation of Immediate-Release (IR) dextroamphetamine that is currently undergoing treatment of Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy.
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“Prescription stimulant abuse is a growing, serious issue with more than five million Americans misusing and abusing ADHD prescriptions stimulants on an annual basis. We believe ADAIR, if approved, has the potential to help address this significant problem by making it difficult for individuals to manipulate the drug. Our proprietary immediate release formulation has been shown in studies to behave as intended when taken orally, but is difficult to prepare for snorting or injecting,” commented David Baker, President & Chief Executive Officer, Vallon.
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Vallon is currently performing its pivotal intranasal human abuse liability review, which will be the last clinical trial until filing an NDA. This ongoing SEAL study (Study to Evaluate the Abuse Liability, Pharmacokinetics, Safety, and Tolerability of an Abuse-Deterrent d-Amphetamine Sulfate Immediate Release Formulation) is a pivotal randomized, double-blind, double-dummy, placebo, and active-controlled 4-period, 4-way crossover evaluating the abuse potential of ADAIR versus dextroamphetamine administered intranasally in recreational drug abusers with a past history of snorting stimulants.
“Through the use of the 505(b)(2) regulatory pathway, we expect to leverage much of the existing data for dextroamphetamine, which has been demonstrated to be an effective treatment for ADHD and narcolepsy,” added Dr. Timothy Whitaker, Chief Medical Officer, Vallon. “Our ongoing SEAL study is designed to evaluate the safety and abuse liability of ADAIR by recreational drug users. We are pleased with the progress of the study and remain on track with our expectations to report topline results in the second half of this year, which have the potential to support our NDA filing in the second quarter of 2022.”
When manipulated ADAIR 30mg is compared to crushed d-amphetamine sulfate and placebo, the SEAL analysis will look at its pharmacodynamics (PD), pharmacokinetics (PK), protection, and tolerability. On a bipolar 100mm visual analog scale, the primary PD endpoint is mean maximum (Emax) Drug Liking, a typical endpoint used in human abuse liability studies.
Two cohorts of subjects have been tested, trained, and have completed the study’s treatment process. The research is still accepting participants. The treatment process will include 64 subjects who have shown a reported positive response to stimulants. Adverse events, vital signs, ECGs, clinical laboratory examinations, and the Columbia Suicide Severity Rating Scale(C-SSRS) will all be used to determine the safety.
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