Sever Pharma expands work on ketamine implant with Silo Pharma

by | 11th Aug 2025 | News

New phase of development targets chronic pain and fibromyalgia

Sever Pharma Solutions has deepened its partnership with Silo Pharma to advance a novel ketamine-based implant designed to treat chronic pain and fibromyalgia.

The expanded agreement will see Sever Pharma Solutions scale up extrusion processes and continue analytical testing for Silo’s investigational SP-26 polymer implant.

SP-26 is a dissolvable subcutaneous implant that delivers controlled doses of ketamine hydrochloride over time. It aims to provide a safer, non-opioid alternative for long-term pain management.

Sever Pharma Solutions previously supported early development of SP-26, validating the delivery system through long-term in-vitro release testing and drug product characterisation.

The new phase will focus on refining time-released, dose-controlled formulations to enhance therapeutic efficacy and safety.

Silo Pharma CEO Eric Weisblum said: “We are pleased to continue our collaboration with Sever Pharma Solutions as we move forward with further pre-clinical testing of our novel non-opioid chronic pain therapeutic.”

Tony Listro, VP, Technology and Site Lead at Sever Pharma Solutions’ Putnam facility said: “This project together with Silo Pharma exemplifies our commitment to leveraging our specialised capabilities in polymer-based drug delivery systems to help bring novel, non-opioid treatment options closer to patients in need.”

If successful in clinical trials, SP-26 may qualify for the FDA’s streamlined 505(b)(2) regulatory pathway, potentially accelerating its route to approval.

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