Tonix begins Phase 2 trial of TNX-102 SL in Long COVID

Tonix Pharmaceuticals (NASDAQ:TNXP) enrolled the first participant in the Phase 2 PREVAIL study of TNX-102 SL as a potential treatment for a subset of patients with Long COVID syndrome whose symptoms overlap with fibromyalgia.

“We believe Long COVID, characterized by multi-site pain, fatigue and sleep disturbance, has features of central sensitization syndromes similar to fibromyalgia,” Seth Lederman, M.D. and CEO of Tonix, said in a statement.

“Findings from our retrospective observational database study in more than 50,000 Long COVID patients showed that more than 40% of Long COVID patients in the sample have fibromyalgia-like multi-site pain symptoms, suggesting that we should be able to recruit a robust cohort of participants to test the effects of TNX-102 SL in treating this condition,” he added.

The Phase 2 PREVAIL study is 14-week double-blind, randomized, multicenter, placebo-controlled study to evaluate the efficacy and safety of TNX-102 SL taken daily at bedtime in patients with multi-site pain associated with post-acute sequelae of SARS-COV-2 infection.

The trial is being conducted at some 30 sites in the U.S. and is expected to enroll approximately 470 patients (235 per arm) who will be randomized in a 1:1 ratio to treatment with TNX-102 SL or placebo tablets.

An interim analysis is expected to be completed after the first 50% of enrolled patients have completed the study for the purpose of possible sample size re-estimation or to stop the study early for efficacy, currently anticipated in the first half of 2023.