Influenza circadiana sulla terapia dell'esposizione prolungata per PTSD
Influenza circadiana sull'estinzione della paura derivante dalla terapia dell'esposizione prolungata per il disturbo da stress post-traumatico
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.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
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.
Tipo di studio
Iscrizione (Effettivo)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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Massachusetts
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Boston, Massachusetts, Stati Uniti, 02130-4817
- VA Boston Healthcare System
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
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
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Doppio
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
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Sperimentale: 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. |
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Sperimentale: 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. |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Psychophysiological Reactivity to Script-driven Imagery (SDI-PR): Primary Mechanistic Outcome
Lasso di tempo: 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
Lasso di tempo: 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).
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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PCL-5: PTSD Checklist for Diagnostic and Statistical Manual of Mental Disorders (DSM), Fifth Edition: Secondary Clinical Outcome
Lasso di tempo: 10 weeks
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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
Lasso di tempo: 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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Collaboratori e investigatori
Sponsor
Investigatori
- Investigatore principale: Edward F Pace-Schott, PhD, Massachusetts General Hospital
- Investigatore principale: Suzanne L Pineles, PhD, VA Boston Health System, Boston University
Pubblicazioni e link utili
Pubblicazioni generali
- 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.
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Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 2021p003356
- R21MH128619 (Sovvenzione/contratto NIH degli Stati Uniti)
Piano per i dati dei singoli partecipanti (IPD)
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Descrizione del piano 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.
Periodo di condivisione IPD
Study data will become available following the end of the study and the publication of results.
Criteri di accesso alla condivisione IPD
Investigators can apply to the NIMH Data Archive (NDA) for permission to use these data.
Tipo di informazioni di supporto alla condivisione IPD
- STUDIO_PROTOCOLLO
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