About this trial
The primary objective is to determine the feasibility of delivering OLP-EXP, EXP only, and OLP only over 6 weeks to adults with chronic TMD. The trial will be considered feasible for progression planning when the 6-week retention rate is at least 80% in each arm and average OLP pill adherence is at least 80% of prescribed days in each OLP arm.
Primary hypothesis: Each intervention arm will meet the prespecified 6-week retention benchmark, and each OLP arm will meet the prespecified pill-adherence benchmark.
The secondary objectives are:
1. To evaluate acceptability of each intervention using the TFA measurement and semi-structured interviews. 2. To assess the feasibility of collecting daily EMA, continuous actigraphy, weekly questionnaires, and 3-, 6-, and 12-month follow-up assessments. 3. To identify intervention barriers, facilitators, perceived benefits, burden, ethical concerns, and recommendations for a future fully powered efficacy trial. 4. To estimate variability, missingness, and measure reliability needed to select outcomes and design a future trial.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
English speaking (written and spoken)
Age between 18 and 65 years
Confirmed TMD for more than 3 months
Grade II or above on the Graded Chronic Pain Scale
Disqualifiers
Personal (or family first degree) history of mania, schizophrenia, or other psychoses
Severe psychiatric conditions require medication (e.g. schizophrenia, bipolar disorders, autism) or hospitalization within the last 3 years.
Lifetime alcohol/drug dependence and alcohol/drug abuse in past one year
Pregnancy/Breastfeeding
Trial design
Parallel
Treatments tested in this trial
OLP-EXP
Other interventionExpectation optimization addressing benefit, personal control, and coping expectations, plus transparent daily OLP pills for 6 weeks and weekly boosters.
OLP
Dietary supplementOpen-label placebo pills. The placebo pills in this study are empty capsules without any ingredients inside. The capsules are made of microcrystalline cellulose.
EXP
BehavioralExpectation optimization addressing personal-control and coping expectations associated with chronic pain in general, plus weekly boosters.
Treatment groups
Trial outcomes
Primary outcomes
Enrollment rate
Enrollment rate: the proportion (%) of recruited participants who enrolled in the study.
Retention rate
Retention rate: the proportion (%) of enrolled participants who finished the study
Daily survey completion rate
Module rate: the proportion (%) of completed daily surveys sent through DockTales and REDCap-based surveys.
Locations
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options: