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Les Lipides Marins Atténuent les Douleurs du TMD (ADAPT)

2 novembre 2026 mis à jour par: University of North Carolina, Chapel Hill

Sécurité et efficacité analgésique des précurseurs lipidiques marins des médiateurs spécialisés de résolution de l'inflammation chez les adultes souffrant de douleur temporomandibulaire chronique

The ADAPT study is a single-site, Phase 2b, randomized, quadruple-masked, placebo-controlled trial evaluating an omega-3 dietary supplement enriched with specialized pro-resolving mediator (SPM) precursors in adults with chronic temporomandibular disorder (TMD) pain. The trial will enroll 100 adults aged 18 years or older with examiner-confirmed TMD myalgia or arthralgia will be enrolled at the University of North Carolina at Chapel Hill, Adams School of Dentistry.

Participants are randomized 1:1 to receive either the SPM precursor supplement or a matched placebo daily for 8 weeks. Randomization is stratified by sex, and study agents are identical in appearance to maintain masking.

The study aims to evaluate whether the SPM precursor supplement:

Reduces facial pain intensity compared with placebo.

Changes pressure pain sensitivity at the jaw and other standard body sites.

Affects other aspects of chronic pain, including duration, interference with daily activities, headache burden, anxiety, depression, jaw-related quality of life, and overall patient-reported change.

Participants will record their daily facial pain intensity in paper diaries, complete short questionnaires at baseline, Week 4, and Week 8, and undergo experimental pain testing with a handheld algometer at baseline, Week 4, and Week 8. Safety is monitored through the documentation of all adverse events throughout the study period.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Intervention / Traitement

Description détaillée

Study Overview Participant Procedures Screening/Baseline (Visit 0-1): DC-TMD examination to confirm eligibility; review of medications and health history; baseline questionnaires; pressure pain threshold testing; body manikin pain mapping.

Daily Diaries: Participants record facial pain intensity (0-100 NRS) each day for 8 weeks.

Mid-study Assessment (Week 4, Visit 2): Questionnaires for pain, mood, quality of life; pressure pain threshold testing.

Final Visit (Week 8, Visit 3): Repeat questionnaires, pressure pain testing, and body manikin assessments; blood collection for polyunsaturated fatty acid (PUFA)/oxylipin analysis.

Follow-up Call (1 week post-intervention): Safety check for adverse events.

Study Duration

Total participation: up to 12 weeks (pre-screening, 8-week intervention, 1-week follow-up).

Assessments at baseline, Week 4, Week 8, and follow-up call.

Population and Recruitment Adults ≥18 years with examiner-confirmed TMD myalgia or arthralgia. Participants of all races and ethnicities are eligible; anticipated demographics: ~77% female, 6% Hispanic, 83% White, 8% African American, 9% other.

Overall Goal To provide high-quality evidence on the effects of omega-3 SPM precursors on facial pain, pressure pain sensitivity, psychosocial distress, headache burden, jaw-related quality of life.

Type d'étude

Interventionnel

Inscription (Estimé)

100

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Sauvegarde des contacts de l'étude

Lieux d'étude

    • North Carolina
      • Chapel Hill, North Carolina, États-Unis, 27599
        • Recrutement
        • University of North Carolina at Chapel Hill

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion

Pre-screening (before Visit 0):

  • Age ≥18 years.
  • Pain in jaws, temples, ears, or in front of ears at least 5 days in the past 30 days, occurring monthly over the last 3 months.
  • Pain not due to toothache or ear infection.
  • Pain intensity ≥30 on a 0-100 numeric rating scale (NRS) during the week before pre-screening.
  • Willing to provide written informed consent and follow all study procedures.
  • Able to be contacted reliably during the study period.

Visit 0 - Screening/Baseline:

  • Meets all pre-screening criteria above.
  • Examiner-confirmed TMD diagnosis (myalgia or arthralgia) per DC-TMD criteria.
  • Discontinues omega-3 supplements prior to randomization and agrees not to use them during the study.
  • Will not initiate new occlusal splint therapy during the study. Participants already using a splint ≥30 days prior may continue.
  • Maintains stable facial pain management regimen:
  • No changes to regularly scheduled daily pain medications.
  • No initiation of new facial pain treatments (pharmacologic, injectable, or non-pharmacologic).
  • Episodic prescription pain medications discontinued prior to randomization, except NSAIDs, acetaminophen, or low-dose aspirin.

Visit 1 - Randomization:

  • Completes ≥4 of 7 daily symptom diary (DSD) entries before Visit 1.
  • Average weekly pain ≥30 on 0-100 NRS, or ≥30 on at least 4 days that week.

Exclusion (Assessed at pre-screening and/or Visit 0):

  • Allergy or hypersensitivity to fish or seafood.
  • Botulinum toxin injections for facial pain within past 3 months.
  • Facial trauma or orofacial surgery within past 6 weeks.
  • History of renal failure or dialysis.
  • History of hyperthyroidism.
  • Immunocompromised state or autoimmune disorder.
  • History of seizure disorder or uncontrolled seizures.
  • Use of opioid medications in the past 30 days.
  • Pregnancy.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Quadruple

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: SPM precursor marine lipid dietary supplement

Experimental Arm - SPM Precursor Marine Lipid Supplement: Participants receive 2 g/day (1 g twice daily) of SPM Active® softgels containing 18-HEPE, 17-HDHA, and 14-HDHA. Softgels are identical in appearance to placebo. Duration: 8 weeks.

Placebo Arm - Medium-Chain Triglyceride (MCT) Supplement: Participants receive 2 g/day (1 g twice daily) of MCT oil softgels, identical in appearance to active supplement. Duration: 8 weeks.

Participants receive omega-3 SPM precursor-enriched marine lipid softgels administered daily for 8 weeks at the dose specified in the protocol.

Comparateur placebo: Medium-chain triglyceride dietary supplement

Participants receive 2 grams per day of a placebo supplement, administered as medium-chain triglyceride (MCT) oil softgels. Participants take 1 gram orally twice daily for 8 weeks. The placebo softgels are identical in appearance and packaging to the active supplement. Participants remain in this arm for the full duration of the study.

Participants receive matched placebo softgels daily for 8 weeks.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Change in average weekly facial pain intensity
Délai: Baseline (week prior to randomization) through Week 8 (final visit, Day 56 ±7)

Net change from baseline to Week 8 in average weekly facial pain intensity, calculated as the mean of daily entries recorded in the Daily Symptom Diary (DSD). Higher scores indicate worse pain.

Baseline (week prior to randomization) through Week 8 (final visit, Day 56 ±7)
Rate of treatment-emergent adverse events
Délai: From first dose (Visit 1/Randomization, Day 0) through 7 days after the final dose (Visit 3, Day 56 ±7)

Rate of participants experiencing any adverse event (AE) that first appears or worsens after starting the study intervention and up to 7 days after the last dose. Investigators record onset, duration, severity, and relatedness to the study intervention. This measure evaluates the safety of the SPM precursor marine lipid supplement compared with placebo.

From first dose (Visit 1/Randomization, Day 0) through 7 days after the final dose (Visit 3, Day 56 ±7)

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Change in TMD pain duration
Délai: From Visit 1 (Randomization, Day 0) through 7 days after the final dose (Visit 3, Day 56 ±7)

Change from baseline to Week 8 (Visit 3) in the percentage of waking time with facial pain, expressed in percentage points, based on daily diary entries (0-100 scale).

From Visit 1 (Randomization, Day 0) through 7 days after the final dose (Visit 3, Day 56 ±7)
Change in TMD pain intensity and pain interference
Délai: Visit 1 (Randomization, Day 0) to Visit 3 (Final visit, Day 56 ±7)

Change from baseline to Week 8 (Visit 3) in TMD pain intensity (current, worst, and average) and interference with daily activities. Assessed using the Graded Chronic Pain Scale (0-10 scale), with higher scores indicating worse pain and greater interference.

Visit 1 (Randomization, Day 0) to Visit 3 (Final visit, Day 56 ±7)
Change in headache impact
Délai: Visit 1 (Randomization, Day 0); Visit 2 (Mid-study visit, Day 28 ±7); Visit 3 (Final visit, Day 56 ±7)

Change from baseline to Week 8 (Visit 3) in headache impact measured with the Headache Impact Test-6 (HIT-6). Scores range 36-78, with higher scores indicating greater headache-related impact.

Visit 1 (Randomization, Day 0); Visit 2 (Mid-study visit, Day 28 ±7); Visit 3 (Final visit, Day 56 ±7)
Change in number of painful body sites
Délai: Visit 1 (Randomization, Day 0); Visit 3 (Final visit, Day 56 ±7)

Change from baseline to Week 8 (Visit 3) in the number of anatomical locations marked as painful on anterior and posterior body manikins (range 0-42), with higher scores indicating more widespread pain.

Visit 1 (Randomization, Day 0); Visit 3 (Final visit, Day 56 ±7)
Change in pressure pain thresholds
Délai: Visit 0 (Screening/Baseline, 7-21 days before Visit 1), Visit 3 (Final visit, Day 56 ±7)

Change from baseline to Week 8 (Visit 3) in pressure pain thresholds (kg) measured bilaterally at five anatomical sites: temporalis, masseter, TM joint, trapezius, and lateral epicondyle. Up to 5 trials per site are performed until two measurements differ by ≤0.2 kg. Higher numbers indicate lower pain sensitivity.

Visit 0 (Screening/Baseline, 7-21 days before Visit 1), Visit 3 (Final visit, Day 56 ±7)
Change in state anxiety
Délai: Visit 1 (Randomization, Day 0); Visit 3 (Final visit, Day 56 ±7)

Change from Day 0 to Week 8 (Visit 3) in state anxiety measured using the State subscale of the State-Trait Anxiety Inventory (range 20-80), with higher scores indicating greater anxiety.

Visit 1 (Randomization, Day 0); Visit 3 (Final visit, Day 56 ±7)
Change in depression
Délai: Visit 1 (Randomization, Day 0); Visit 3 (Final visit, Day 56 ±7)

Change from Day 0 to Week 8 (Visit 3) in depressive symptoms measured using the Symptom Checklist-90 (SCL90) Depression subscale (range 0-48), with higher scores indicating more severe symptoms.

Visit 1 (Randomization, Day 0); Visit 3 (Final visit, Day 56 ±7)
Change in TMD-related quality of life
Délai: Visit 1 (Randomization, Day 0); Visit 3 (Final visit, Day 56 ±7)

Change from Day 0 to Week 8 (Visit 3) in the impact of TMD on daily activities, pain, psychological well-being, and other aspects of quality of life. Measured with a summary score using the Oral Health Impact Profile-TMD (OHIP-TMD, range 0-88), with higher scores indicating greater adverse impact.

Visit 1 (Randomization, Day 0); Visit 3 (Final visit, Day 56 ±7)
Change in overall status
Délai: Visit 2 (Mid-study, Day 28 ±7); Visit 3 (Final visit, Day 56 ±7)

Change at Weeks 4 (Visit 2) and 8 (Visit 3) in participants' perceived change in activities, symptoms, emotions, and quality of life related to facial pain, assessed using the Patient Global Impression of Change questionnaire (7-point scale), with higher scores reflecting greater improvement.

Visit 2 (Mid-study, Day 28 ±7); Visit 3 (Final visit, Day 56 ±7)

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Collaborateurs

Les enquêteurs

  • Chercheur principal: Anne E Sanders, PhD, University of North Carolina, Chapel Hill

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

25 septembre 2026

Achèvement primaire (Estimé)

1 janvier 2030

Achèvement de l'étude (Estimé)

1 février 2030

Dates d'inscription aux études

Première soumission

20 février 2026

Première soumission répondant aux critères de contrôle qualité

20 février 2026

Première publication (Réel)

27 février 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

5 novembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

2 novembre 2026

Dernière vérification

1 octobre 2026

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • 25-0878
  • UG3DE033354 (Subvention/contrat des NIH des États-Unis)

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

Deidentified individual data that supports the results will be shared beginning 9 to 36 months following publication provided the investigator who proposes to use the data has approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and executes a data use/sharing agreement with UNC.

Délai de partage IPD

beginning 9 and continuing for 36 months following publication

Critères d'accès au partage IPD

Investigator has approved IRB, IEC, or REB and an executed data use/sharing agreement with UNC.

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .