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Efficacy of 60-minute Versus 90-minute Sessions in Treating PTSD Using Prolonged Exposure

16. september 2021 oppdatert av: University of Pennsylvania
The purpose of this study is to determine whether 60-minute sessions of prolonged exposure (PE) are as effective as the standard 90-minute session for treating posttraumatic stress disorder (PTSD). Participants will include patients ages 18 or older with a current diagnosis of PTSD who are seeking treatment in our clinic. Patients who have current substance dependence, psychosis, and suicidal ideation with intent and plan may not be suitable for receiving PE and may be offered another treatment or referred to a different treatment center. Participants will be randomized to receive either the 90- minute or 60-minute PE session. A blind evaluator will assess for pre-treatment, post-treatment, and follow-up levels of symptom severity using the PTSD Symptoms Scale Interview (PSS-I). Participants will attend weekly treatment sessions with any of our faculty members and will complete self-report measures at every session (see below).

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Faktiske)

160

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Forente stater
    • Pennsylvania
      • Philadelphia, Pennsylvania, Forente stater, 19106
        • Center for the Treatment and Study of Anxiety

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Primary diagnosis of PTSD
  • Recommended by therapist to receive Prolonged Exposure therapy

Exclusion Criteria:

  • Current substance dependence, psychosis, suicidal ideation with intent and plan, or other psychiatric problems warranting immediate clinical attention or would interfere with Prolonged Exposure therapy

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: 90 minute Prolonged Exposure Sessions
Prolonged Exposure Therapy for PTSD consists of 10 to 15 weekly or twice-weekly sessions, each lasting about 90 minutes, with 40 to 60 minutes imaginal exposure.
Atferdsmessig: Prolonged Exposure Therapy
Prolonged exposure therapy (PE), a specific exposure therapy program for PTSD is a highly effective treatment for PTSD. The key components of PE are imaginal exposure to the traumatic event and processing it (revisiting of the traumatic memory in imagination) followed by processing of the revisiting experience, and in vivo exposure to avoided trauma-related situations and objects.
Eksperimentell: 60 minute Prolonged Exposure Sessions
This treatment condition is a modified version of Prolonged Exposure therapy for PTSD. It consists of 10 to 15 weekly or twice-weekly sessions, each lasting about 60 minutes, with 20 minutes imaginal exposure.
Atferdsmessig: Prolonged Exposure Therapy
Prolonged exposure therapy (PE), a specific exposure therapy program for PTSD is a highly effective treatment for PTSD. The key components of PE are imaginal exposure to the traumatic event and processing it (revisiting of the traumatic memory in imagination) followed by processing of the revisiting experience, and in vivo exposure to avoided trauma-related situations and objects.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in PTSD Symptom Scale, Interview Version (PSS-I; Foa, Riggs, Dancu, & Rothbaum, 1993; Powers, Gillihan, Rosenfield, Jerud & Foa, 2012)
Tidsramme: Pre-treatment through 6 month follow-up

The PSS-I will be administered on 4 separate occasions We will measure the change in PSS-I scores from pre-treatment to post-treatment, 3 month follow-up, and 6 month follow-up.

The PSS-I is a 20-minute, 17-item clinical interview that evaluates DSM-IV PTSD symptoms on a frequency/severity scale. The interview yields a full-scale score and subscales for each of the three PTSD symptom clusters. Psychometric studies revealed internal reliability of .91 for the full scale, and .78, .80, and .82 for the reexperiencing, avoidance and arousal clusters (Foa & Tolin, 2000).
Pre-treatment through 6 month follow-up

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Posttraumatic Diagnostic Scale (PDS; Foa et al., 1997)
Tidsramme: Pre-treatment through 6 months post-treatment

The PDS will be administered at every other treatment session and at post-treatment, 3 month follow-up, and 6 month follow-up. The measure will be used to closely monitor treatment progress and help assess severity of symptoms.

The PDS is a 17-item self-report measure that provides total and subscale severity scores and categorical classification of PTSD. The PDS demonstrated high internal consistency (.92 total, .78 re-experiencing, .84 avoidance, and .84 hyperarousal). Test-retest reliability is good, ranging from .74 to .85. High diagnostic agreement (82%) with the SCID-IV was noted: sensitivity was .89, and specificity, .75. The PDS is highly related to other measures of trauma related psychopathology. Participants will complete this measure at the beginning of every other treatment session.
Pre-treatment through 6 months post-treatment
Beck Depression Inventory (BDI; Beck et al., 1961)
Tidsramme: Pre-treatment through 6 month follow-up

The BDI will be administered at every other treatment session and at post-treatment, 3 month follow-up, and 6 month follow-up. The measure will be used to closely monitor treatment progress and help assess severity of symptoms.

The BDI is a 21-item scale assessing depression. The inventory's internal consistency ranges from .58 to .93, test-retest reliability ranges from .69 to .90. Participants will complete this report measure at the beginning every other treatment session.
Pre-treatment through 6 month follow-up
Post-Traumatic Cognitions Inventory (PTCI; Foa et al., 1999)
Tidsramme: Pre-treatment through 6 month follow-up

The PTCI will be administered at every other treatment session and at post-treatment, 3 month follow-up, and 6 month follow-up. The measure will be used to closely monitor treatment progress and help assess severity of symptoms.

This 36-item instrument assesses post-trauma cognitions across self, world, and self-blame and yields a total score. The scale has high internal consistency (.97, .88, .86, 97, respectively) and correlates well with PTSD severity, anxiety, and depression (.44 to .79). This 36-item instrument assesses dysfunctional post trauma cognitions theoretically thought to underlie the development of PTSD. Participants will complete this measure at the beginning of every treatment session.
Pre-treatment through 6 month follow-up

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

University of Pennsylvania

Etterforskere

  • Hovedetterforsker: Edna B. Foa, Ph.D., University of Pennsylvania

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. september 2013

Primær fullføring (Faktiske)

1. februar 2021

Studiet fullført (Faktiske)

30. juni 2021

Datoer for studieregistrering

Først innsendt

22. juli 2013

Først innsendt som oppfylte QC-kriteriene

26. juli 2013

Først lagt ut (Anslag)

30. juli 2013

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

17. september 2021

Siste oppdatering sendt inn som oppfylte QC-kriteriene

16. september 2021

Sist bekreftet

1. september 2021

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 817717

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