Silo Pharma Announces Completion of Dosing in Safety Study of PTSD Drug SPC-15

SARASOTA, FL, July 16, 2025 (GLOBE NEWSWIRE) — Silo Pharma, Inc. (Nasdaq: SILO) (“Silo” or the “Company”), a developmental stage biopharmaceutical company focused on novel therapeutics and drug delivery systems, today announced completion of dosing in a U.S. Food and Drug Administration (FDA)-requested 7-day safety and toxicology large animal study of its lead asset SPC-15, and bioanalytical and safety/toxicology results for such study are expected within 60 days.

“Our novel PTSD drug candidate SPC-15 has already shown strong safety and therapeutic delivery, and we are confident about the final data results from our preclinical discovery program,” said Eric Weisblum, CEO of Silo. “We remain on track to conclude our two remaining final preclinical studies and planning to submit an investigational new drug (IND) application for SPC-15.”

Two remaining SPC-15 studies are currently in progress or being planned: an IND-enabling GLP (Good Laboratory Practice)-compliant toxicology and toxicokinetic animal study, and a device study of SPC-15’s formulation-specific microchip-based nasal spray system.  

Silo plans to seek the FDA’s 505(b)(2) regulatory pathway for approval of SPC-15, a drug development route that can significantly shorten clinical timelines for FDA approval and reduce drug development costs.

About SPC-15
SPC-15 is an intranasal serotonin 5-HT4 receptor agonist aimed at treating stress-induced psychiatric disorders such as PTSD and anxiety. With its potential eligibility for the FDA’s streamlined 505(b)(2) regulatory pathway, SPC-15 offers a promising approach to accelerate the approval process. Silo Pharma is collaborating with Columbia University to conduct preclinical studies and has exclusive global rights to the development and commercialization of SPC-15.

About Silo Pharma
Silo Pharma Inc. (Nasdaq: SILO) is a developmental stage biopharmaceutical company focused on addressing underserved conditions, including stress-induced psychiatric disorders, chronic pain, and central nervous system (CNS) diseases. The Company’s portfolio includes innovative programs such as SPC-15 for PTSD, SP-26 for fibromyalgia and chronic pain, and preclinical assets targeting Alzheimer’s disease and multiple sclerosis. Silo’s research is conducted in collaboration with leading universities and laboratories. silopharma.com

Forward-Looking Statements
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