Data support evaluation of the effects of two weeks of TNX-102 SL therapy on severity of acute stress reaction (ASR) and frequency of acute stress disorder (ASD) and PTSD after civilian motor vehicle collision in upcoming U.S. DoD-Funded Phase 2 investigator-initiated OASIS trial
Nominal improvement in PTSD severity and measures of sleep quality at Week 4 in the HONOR study support development of bedtime TNX-102 SL therapy in the immediate aftermath of trauma
TNX-102 SL (Tonmya™) is also in late-stage development for the management of fibromyalgia for which NDA preparation is ongoing
CHATHAM, N.J., March 07, 2024 (GLOBE NEWSWIRE) -- Tonix Pharmaceuticals Holding Corp. (Nasdaq: TNXP) (Tonix or the Company), a biopharmaceutical company with marketed products and a pipeline of development candidates, today announced the publication of a research paper in the Journal Psychiatry Research. The article titled, “A Phase 3, Randomized, Placebo-Controlled, Trial to Evaluate the Efficacy and Safety of Bedtime Sublingual Cyclobenzaprine (TNX-102 SL) in Military-Related Posttraumatic Stress Disorder,” by Parmenter, et al. found that bedtime TNX-102 SL* treatment is well-tolerated and showed nominal improvement in PTSD severity and sleep quality measures in the first four weeks in military-related posttraumatic stress disorder (PTSD).1 The Company believes these findings suggest a potential role for short-term bedtime TNX-102 SL treatment in the immediate aftermath of traumatic events.
The data support the U.S. Department of Defense (DoD)-funded Phase 2 investigator-initiated OASIS trial to evaluate bedtime TNX-102 SL2 in reducing the severity of acute stress reaction (ASR) and the frequency of acute stress disorder (ASD) and PTSD. The IND supporting the OASIS trial was recently cleared,3 and the trial is expected to begin enrolling in the second quarter. The trial is sponsored by The University of North Carolina Institute for Trauma Recovery and supported by a $3 million grant from DoD. In the OASIS study, 14 days of bedtime TNX-102 SL 5.6 mg will be tested in the immediate aftermath of motor vehicle collision. The study will test the potential for TNX-102 SL treatment initiated within 24 hours of index trauma to target trauma-related sleep disturbance and other ASR symptoms to facilitate recovery from ASR and to prevent PTSD.
“There is an urgent need for interventions to reduce rates of ASD and PTSD in the immediate aftermath of trauma,”4 said Seth Lederman, M.D., Chief Executive Officer of Tonix Pharmaceuticals. “We believe the results in the published paper suggest that bedtime TNX-102 SL has short-term activity on improving PTSD symptom severity and sleep quality in military-related PTSD. Poor sleep after trauma is a risk factor for progressing from ASD to PTSD. Therefore, poor sleep is not only a symptom of ASR, ASD and PTSD, but also a potential target of therapy.”
Dr. Gregory Sullivan, Chief Medical Officer of Tonix said, “Sleep disturbances are known to play a critical role in the development and maintenance of PTSD. The upcoming OASIS trial will test a 14-day short-course of bedtime TNX-102 SL therapy beginning within 24 hours of index trauma for effects on ASR symptoms and incidence of PTSD development. We are excited to test bedtime TNX-102 SL in the immediate aftermath of trauma to learn whether drug intervention reorients the trajectory of posttraumatic pathology from acute trauma to early recovery in the first few weeks.”
About TNX-102 SL (also known as Tonmya™ for the management of fibromyalgia)
PTSD: The Phase 3 HONOR study described in the published article was performed in military-related PTSD with the primary endpoint of improvement from baseline in Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) total score at Week 12 comparing TNX-102 SL 5.6 mg and placebo. The study did not reach statistical significance on the primary endpoint. While there was nominal improvement by the Week 4 visit on CAPS-5 (p=0.019), the improvement relative to placebo was not sustained at Weeks 8 and 12. The CAPS-5 “sleep disturbance” item also showed nominal improvement at Week 4 (p=0.002), as well as at Week 8 (p=0.026), but not thereafter. The PROMIS Sleep Disturbance T-score also showed early nominal improvement with TNX-102 SL 5.6 mg at Week 4 (p=0.015). It is also notable that when the primary endpoint was analyzed for responder rate, defined as ≥50% improvement on CAPS-5 total score at Week 4, 38.4% of those on TNX-102 SL were responders versus 24.4% on placebo (p=0.019). TNX-102 SL was well-tolerated and the adverse events reported were similar to those seen in prior TNX-102 SL studies. There were three participants with serious adverse events (SAEs) reported during the study: two in the placebo group and one in the active group. None were deemed related to study drug. Administration site reactions were similar in profile to prior studies with TNX-102 SL, with oral numbness (hypoaesthesia) at the highest rate. These oral sensory adverse events (AE), oral numbness, oral tingling, and tongue discomfort were temporally-related to dosing and were rated as mild and transient (