Influence circadienne sur la thérapie d'exposition prolongée pour le SSPT
Influence circadienne sur l'extinction de la peur résultant d'une thérapie d'exposition prolongée pour le SSPT
Proposed research will examine time-of-day effects on trauma-related fear extinction using Prolonged Exposure Therapy (PE) telemedicine for Posttraumatic Stress Disorder (PTSD) in the National Center for PTSD (NCPTSD). The primary mechanistic outcome measure will be change in psychophysiological reactivity to script-driven imagery (SDI-PR) measured, in person, at pre-treatment, after 5 PE sessions (mid-treatment), and after all 10 PE sessions (post-treatment). A secondary mechanistic outcome will be session-to-session reduction in peak subjective units of distress (SUDS) ratings to imaginal exposures. The primary clinical outcome will be change in Clinican Administered PTSD Scale (CAPS-5) severity score; a secondary clinical outcome will be session-to-session reduction in self-reported PTSD symptoms using the PTSD checklist (PCL-5). Participants meeting inclusion criteria (described below) will be randomized to either PE sessions that begin from 07:00 to a time no later than 2 hours past a participant's customary rise time, or to the last treatment session of the day beginning at 16:00 or later (26 per arm). Participants will complete daily at-home imaginal-exposure homework within the same time frame as their PE sessions are scheduled, i.e., within 2 hours of awakening for morning (AM) group and between 16:00 and 2 hours before bedtime for late afternoon (PM) group.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Proposed research will examine time-of-day effects on trauma-related fear extinction using PE therapy for PTSD in the National Center for PTSD (NCPTSD). The primary mechanistic outcome measure will be change in SDI-PR; a secondary mechanistic outcome will be session-to-session reduction in peak SUDS ratings to imaginal exposures. The primary clinical outcome will be change in CAPS-5 severity score; a secondary clinical outcome will be session-to-session reduction in self-reported PTSD symptoms (PCL-5). Participants meeting inclusion criteria (described below) will be randomized to either PE sessions that begin from 07:00 to a time no later than 2 hours past a participant's customary rise time, or to the last treatment session of the day beginning at 16:00 or later. Participants will complete daily at-home imaginal-exposure homework within the same time frame as their PE sessions are scheduled (i.e., within 2 hours of awakening for morning group and between 16:00 and 2 hours before bedtime for late afternoon group). The assessment schedule will be identical for all participants. Participants who meet study inclusion criteria at screening will first begin a 7-day, pre-study sleep-monitoring period with wrist actigraphy, sleep diaries and completion of a diurnal profile of salivary cortisol levels. Trauma-related fear will be assessed using the standard SDI procedures detailed below at pre-treatment, after 5 PE sessions (mid-treatment), and after all 10 PE sessions (post-treatment). The CAPS-5 will be administered at these same times. PCL-5 measurements will be obtained at each treatment session and SUDs will be obtained during all treatment sessions that include imaginal exposure (sessions 3-8). All SDI sessions will be carried out at a standardized time of day in the late-afternoon (15:00-17:00). PE treatment will be administered at a targeted rate of once per week. At each PE and assessment session, pre-session saliva samples will be obtained for cortisol measurement and normalized using the diurnal profile of cortisol obtained during the sleep-assessment week. Participants will wear the wrist actigraph and complete sleep diaries throughout PE. The diurnal cortisol profile will be repeated at the post-treatment assessment.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Massachusetts
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Boston, Massachusetts, États-Unis, 02130-4817
- VA Boston Healthcare System
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- a diagnosis of PTSD as defined by DSM-5, with a minimum CAPS severity score of 26, a minimum PCL-5 score of 31, or a score of 2 or above on CAPS-5 Item B2 (concerning distressing dreams)
- interest in starting a course of PE
- availability for appointments at that will either begin from 07:00 to a time no longer than 2 hours past their customary rise time, or to the last treatment session of the day beginning at 16:00 or later
- Age range of 18-70
- A Morningness-Eveningness Questionnaire (MEQ) score above 25.
- Non-exclusionary psychotropic medications must have been stable for 3 weeks prior to Screening/Assessment with intention to remain stable throughout participation.
Exclusion Criteria:
- current or past history of bipolar I disorder, schizophrenic or other psychotic disorders,
- current organic brain disorder including moderate to severe traumatic brain injury
- factitious disorder or malingering
- pregnant or planning to become pregnant in the next four months at time of screening [if a participant does become pregnant during study procedures, the situation will be reviewed on a case-by-case basis and the participant's wishes will be considered in deciding whether the participant will continue with the study or withdraw.]
- current moderate or severe substance use disorder with symptoms present within the past three months
- diagnosed moderate to severe sleep apnea, narcolepsy, periodic limb movement, or restless legs syndrome that result in daytime sleepiness indicated by Epworth Sleepiness Scale (ESS) above 10
- active risk of harm to self or others
- evidence of clinically significant hepatic or renal disease or any other acute or unstable medical condition that might interfere with safe conduct of the study
- current participation in trauma-focused cognitive-behavioral therapy (e.g., Cognitive Processing Therapy, Written Exposure Therapy, Eye Movement Desensitization and Reprocessing Therapy)
- prior treatment with an adequate dose of PE (i.e., 8 or more sessions) to the traumatic event that would be the index trauma for treatment in the study
- having no memory of their traumatic event
- daily use of benzodiazepines
- methadone or suboxone maintenance therapy for past opioid addiction
- diagnosis of Cushing's disease, Addison's disease or use of medications that target cortisol directly such as those used to treat Cushing's disease [ketoconazole, mitotane (Lysodren), metyrapone (Metopirone), and Mifepristone (Korlym, Mifeprex)], those used to treat Addison's disease [Hydrocortisone (Cortef), prednisone or methylprednisolone], as well as cortisone or dexamethasone.
- persons who would habitually awaken so early that more than 2 h would elapse before a morning PE session could occur; or those who engage in habitual shiftwork or transmeridian travel
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Double
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: Early morning PE
26 participants randomized to 10 weekly PE sessions in early morning (between 07:00-10:00) with homework exposures occurring occur at this same time of day. |
Manualized procedures deliver ten 90-minute sessions targeted to occur weekly and administered via tele-health with the same study therapist. Session 1 will focus on psychoeducation. Session 2 involves construction of the in vivo exposure hierarchy. Sessions 3-10 focus on in-session imaginal exposures to the worst trauma memory for 45-60 min followed by 15-20 min of processing the imaginal exposure. For homework, participants will be instructed to confront situations on their hierarchy on a daily basis using recording of their imaginal exposure. Subjective Units of Distress (SUDS) ratings will be taken throughout imaginal exposure exercises. |
|
Expérimental: Late afternoon PE
26 participants randomized to 10 weekly PE sessions in late afternoon (16:00 or later) with homework exposures occurring occur at this same time of day. |
Manualized procedures deliver ten 90-minute sessions targeted to occur weekly and administered via tele-health with the same study therapist. Session 1 will focus on psychoeducation. Session 2 involves construction of the in vivo exposure hierarchy. Sessions 3-10 focus on in-session imaginal exposures to the worst trauma memory for 45-60 min followed by 15-20 min of processing the imaginal exposure. For homework, participants will be instructed to confront situations on their hierarchy on a daily basis using recording of their imaginal exposure. Subjective Units of Distress (SUDS) ratings will be taken throughout imaginal exposure exercises. |
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Psychophysiological Reactivity to Script-driven Imagery (SDI-PR): Primary Mechanistic Outcome
Délai: Outcome measure 1 assessed at pre-treatment (baseline), mid-treatment (week 5), and post-treatment (week 10).
|
This primary mechanistic outcome, measured before, midway and after treatment is a unitary discriminant canonical variable (SDI-PR) that measures psychophysiological reactivity while listening to 2 personalized recorded scripts that describe a participant's index trauma. For each of 3 physiological measures- heart rate (HR), skin conductance (SC),and corrugator EMG (cEMG)- a response (R) score is calculated as the difference between the average level during a 30s pre-script baseline phase and the average level during a 30s imagery phase. These 3 scores are averaged across the 2 scripts and combined using standardized weights as: SDI-PR = 0.29*[HRR] +0.66*[SCR] +0.38*[cEMGR]. There is no absolute limit to how much physiological reactivity can increase in response to scripts, therefore, minimum and maximum scores do not exist. However, a proxy maximum and minimum SDI-PR was estimated using the largest and smallest SCR, HRR, and cEMGR in the study and are respectively, 35.041and -3.061. |
Outcome measure 1 assessed at pre-treatment (baseline), mid-treatment (week 5), and post-treatment (week 10).
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Clinician-Administered PTSD Scale for Diagnostic and Statistical Manual of Mental Disorders (DSM), Fifth Edition (CAPS-5): Primary Clinical Outcome
Délai: Outcome measure 2 assessed at pre-treatment (baseline), mid-treatment (week 5), and post-treatment (week 10).
|
This primary clinical outcome is the gold standard clinical interview for assessing PTSD severity. In CAPS-5, each of the 20 symptoms of PTSD is rated on a 5-point severity scale ranging from 0 (absent) to 4 (extreme). Total scores range from 0 to 80. |
Outcome measure 2 assessed at pre-treatment (baseline), mid-treatment (week 5), and post-treatment (week 10).
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
PCL-5: PTSD Checklist for Diagnostic and Statistical Manual of Mental Disorders (DSM), Fifth Edition: Secondary Clinical Outcome
Délai: 10 weeks
|
PCL-5 contains self-ratings of how much one is bothered by each of the 20 symptoms of PTSD on a 5-point severity scale ranging from 0 (Not at all) to 4 (extremely). Outcome measure 3 is the total PTSD severity score summing all 20 items. The range of total scores for the PCL-5 is 0-80. |
10 weeks
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SUDS: Secondary Mechanistic Outcome
Délai: Starting at PE Session 3 when exposures begin
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A rating scale from 0 to 100 where zero represents no distress at all and 100 represents very extreme distress, fear, or anxiety. SUDS ratings are subjective and different individuals may rate the same situation differently. An individual anchors their own ratings with personal recollection of situations considered "No Distress" to "Moderate" to "Extreme Distress". |
Starting at PE Session 3 when exposures begin
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Edward F Pace-Schott, PhD, Massachusetts General Hospital
- Chercheur principal: Suzanne L Pineles, PhD, VA Boston Health System, Boston University
Publications et liens utiles
Publications générales
- Pace-Schott EF, Germain A, Milad MR. Effects of sleep on memory for conditioned fear and fear extinction. Psychol Bull. 2015 Jul;141(4):835-57. doi: 10.1037/bul0000014. Epub 2015 Apr 20.
- Pace-Schott EF, Germain A, Milad MR. Sleep and REM sleep disturbance in the pathophysiology of PTSD: the role of extinction memory. Biol Mood Anxiety Disord. 2015 May 29;5:3. doi: 10.1186/s13587-015-0018-9. eCollection 2015.
- Meuret AE, Rosenfield D, Bhaskara L, Auchus R, Liberzon I, Ritz T, Abelson JL. Timing matters: Endogenous cortisol mediates benefits from early-day psychotherapy. Psychoneuroendocrinology. 2016 Dec;74:197-202. doi: 10.1016/j.psyneuen.2016.09.008. Epub 2016 Sep 15.
- Meuret AE, Trueba AF, Abelson JL, Liberzon I, Auchus R, Bhaskara L, Ritz T, Rosenfield D. High cortisol awakening response and cortisol levels moderate exposure-based psychotherapy success. Psychoneuroendocrinology. 2015 Jan;51:331-40. doi: 10.1016/j.psyneuen.2014.10.008. Epub 2014 Oct 16.
- Pace-Schott EF, Spencer RM, Vijayakumar S, Ahmed NA, Verga PW, Orr SP, Pitman RK, Milad MR. Extinction of conditioned fear is better learned and recalled in the morning than in the evening. J Psychiatr Res. 2013 Nov;47(11):1776-84. doi: 10.1016/j.jpsychires.2013.07.027. Epub 2013 Aug 28.
- Brueckner AH, Lass-Hennemann J, Wilhelm FH, Ferreira de Sa DS, Michael T. Cortisol administration after extinction in a fear-conditioning paradigm with traumatic film clips prevents return of fear. Transl Psychiatry. 2019 Apr 8;9(1):128. doi: 10.1038/s41398-019-0455-0.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 2021p003356
- R21MH128619 (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) ?
Description du régime IPD
We will share data every January 15 and July 15 with the NIMH Data Archives (NDA) under a NIMH Data Repositories Data Submission Agreement between NIMH and VA Boston Health System (VABHS). Data sharing is required for all NIMH-funded research projects. The NDA DSA will be approved by the VABHS IRB. Each participant will be assigned Global Unique ID (GUID) and data shared will contain no identifiable information. Shared data will include scored psychophysiological, self-report instruments, cortisol, actigraphy, and fully de-identified demographic data.
Délai de partage IPD
Study data will become available following the end of the study and the publication of results.
Critères d'accès au partage IPD
Investigators can apply to the NIMH Data Archive (NDA) for permission to use these data.
Type d'informations de prise en charge du partage d'IPD
- PROTOCOLE D'ÉTUDE
Informations sur les médicaments et les dispositifs, documents d'étude
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