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A Phase 3 Study to Evaluate the Efficacy and Safety of TNX-102 SL in Participants With PTSD

A Phase 3, Double-Blind, Randomized, Multicenter, Placebo-Controlled Study to Evaluate the Efficacy and Safety of TNX-102 SL in Participants With PTSD Taken Daily at Bedtime (Protocol No. TNX-CY-P302)

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03841773
Acronym
RECOVERY
Enrollment
192
Registered
2019-02-15
Start date
2019-03-07
Completion date
2020-04-24
Last updated
2025-02-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

PTSD

Keywords

PTSD

Brief summary

This is a 12-week, multicenter, randomized, double-blind, placebo-controlled, fixed-dose study that will investigate the efficacy and safety of TNX-102 SL 5.6 mg (2 x 2.8 mg tablets) - a sublingual formulation of cyclobenzaprine. Following successful screening and randomization, eligible patients will have a telephonic visit at week 2 and then return regularly to the study clinic for monthly visits for assessments of efficacy and safety.

Interventions

Patients will take 2 tablets of randomly assigned study drug sublingually starting on Day 1 for 12 weeks

DRUGPlacebo SL Tablets

Patients will take 2 tablets of randomly assigned study drug sublingually starting on Day 1 for 12 weeks

Sponsors

Tonix Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Male and Female subjects between the years of 18-75 with a diagnosis of PTSD (diagnosis can be made at screening) * Index trauma must have occurred within 9 years of Screening Visit * Must have occurred when the patient was ≥18 years of age

Exclusion criteria

* Use of antidepressant medication within 2 months of Baseline

Design outcomes

Primary

MeasureTime frameDescription
Mean Change From Baseline in the Total CAPS-5 ScoreDay 1, Week 12The primary efficacy endpoint is the mean change from baseline (Day 1) in the total CAPS-5 score after 12 weeks of treatment. The CAPS-5 is an updated and validated version of a semi-structured interview that has been designed to assess the essential features of PTSD as defined by the DSM-5. The total score ranges from 0 to 80 with higher scores indicating more severe PTSD symptoms.

Secondary

MeasureTime frameDescription
Clinical Global Impression of Severity (CGI-S)Day 1, Week 12Change from baseline (Day 1) in CGI-S score at Week 12. CGI-S range from 1 (Normal, not ill at all) to 7 (Among the most extremely ill patients).
Sheehan Disability Scale (SDS)Day 1, Week 12Change from baseline in Sheehan Disability Scale (SDS) total score after 12 weeks of treatment comparing the 5.6 mg treatment arm to placebo. The SDS is a self-report questionnaire that was designed to assess the participant's view of the degree to which symptoms have disrupted work/school, social life/leisure activities, and family life/home responsibilities during the previous two weeks. Score ranges from 0 to 30. A score of 0 means the patient is unimpaired, and a score of 30 means the patient is highly impaired.
Patient-Reported Outcome Measurement Information System (PROMIS) Sleep DisturbanceDay 1, Week 12Change from baseline (Day 1) to Week 12 in the PROMIS Sleep Disturbance scale. The PROMIS Sleep disturbance short form 8a consists of 8 questions on a 5-point scale (1 to 5) where a higher score indicates a worse outcome. The total score is reported on a range of 8 to 40. Raw scores are converted to T-scores based on US population with score of 50 as average with a standard deviation of 10.

Countries

United States

Participant flow

Participants by arm

ArmCount
Placebo SL Tablet
2 x Placebo Tablets taken sublingually each day at bedtime for 12 weeks. Placebo SL Tablets: Patients will take 2 tablets of randomly assigned study drug sublingually starting on Day 1 for 12 weeks
93
TNX-102 SL Tablet, 5.6 mg
2 x TNX-102 SL, 2.8 mg Tablets taken sublingually each day at bedtime for 12 weeks. TNX-102 SL: Patients will take 2 tablets of randomly assigned study drug sublingually starting on Day 1 for 12 weeks
99
Total192

Baseline characteristics

CharacteristicTotalPlacebo SL TabletTNX-102 SL Tablet, 5.6 mg
Age, Continuous38.5 years
STANDARD_DEVIATION 11.16
37.2 years
STANDARD_DEVIATION 10.67
39.8 years
STANDARD_DEVIATION 11.61
Ethnicity (NIH/OMB)
Hispanic or Latino
35 Participants16 Participants19 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
157 Participants77 Participants80 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
3 Participants0 Participants3 Participants
Race (NIH/OMB)
Black or African American
26 Participants11 Participants15 Participants
Race (NIH/OMB)
More than one race
4 Participants2 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
6 Participants5 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
7 Participants3 Participants4 Participants
Race (NIH/OMB)
White
144 Participants71 Participants73 Participants
Region of Enrollment
United States
192 participants93 participants99 participants
Sex: Female, Male
Female
152 Participants74 Participants78 Participants
Sex: Female, Male
Male
40 Participants19 Participants21 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 930 / 99
other
Total, other adverse events
17 / 9146 / 96
serious
Total, serious adverse events
2 / 910 / 96

Outcome results

Primary

Mean Change From Baseline in the Total CAPS-5 Score

The primary efficacy endpoint is the mean change from baseline (Day 1) in the total CAPS-5 score after 12 weeks of treatment. The CAPS-5 is an updated and validated version of a semi-structured interview that has been designed to assess the essential features of PTSD as defined by the DSM-5. The total score ranges from 0 to 80 with higher scores indicating more severe PTSD symptoms.

Time frame: Day 1, Week 12

Population: Results are reported for the mITT population, which includes all randomized participants who have at least a baseline and one post-baseline CAPS-5 assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo SL TabletMean Change From Baseline in the Total CAPS-5 Score-18.5 units on a scaleStandard Error 1.9
TNX-102 SL Tablet, 5.6 mgMean Change From Baseline in the Total CAPS-5 Score-20.7 units on a scaleStandard Error 1.97
Secondary

Clinical Global Impression of Severity (CGI-S)

Change from baseline (Day 1) in CGI-S score at Week 12. CGI-S range from 1 (Normal, not ill at all) to 7 (Among the most extremely ill patients).

Time frame: Day 1, Week 12

Population: Results are reported for the mITT population.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo SL TabletClinical Global Impression of Severity (CGI-S)-1.5 units on a scaleStandard Error 0.17
TNX-102 SL Tablet, 5.6 mgClinical Global Impression of Severity (CGI-S)-2.0 units on a scaleStandard Error 0.18
Secondary

Patient-Reported Outcome Measurement Information System (PROMIS) Sleep Disturbance

Change from baseline (Day 1) to Week 12 in the PROMIS Sleep Disturbance scale. The PROMIS Sleep disturbance short form 8a consists of 8 questions on a 5-point scale (1 to 5) where a higher score indicates a worse outcome. The total score is reported on a range of 8 to 40. Raw scores are converted to T-scores based on US population with score of 50 as average with a standard deviation of 10.

Time frame: Day 1, Week 12

Population: Results are reported for the mITT population.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo SL TabletPatient-Reported Outcome Measurement Information System (PROMIS) Sleep Disturbance-9.4 T-scoreStandard Error 1.51
TNX-102 SL Tablet, 5.6 mgPatient-Reported Outcome Measurement Information System (PROMIS) Sleep Disturbance-13.0 T-scoreStandard Error 1.57
Secondary

Sheehan Disability Scale (SDS)

Change from baseline in Sheehan Disability Scale (SDS) total score after 12 weeks of treatment comparing the 5.6 mg treatment arm to placebo. The SDS is a self-report questionnaire that was designed to assess the participant's view of the degree to which symptoms have disrupted work/school, social life/leisure activities, and family life/home responsibilities during the previous two weeks. Score ranges from 0 to 30. A score of 0 means the patient is unimpaired, and a score of 30 means the patient is highly impaired.

Time frame: Day 1, Week 12

Population: Results are reported for the mITT population.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo SL TabletSheehan Disability Scale (SDS)-7.6 units on a scaleStandard Error 0.97
TNX-102 SL Tablet, 5.6 mgSheehan Disability Scale (SDS)-9.4 units on a scaleStandard Error 1.01

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026