NCT06150859

Brief Summary

The aim of this study is to compare the effectiveness of an ayahuasca-assisted constructivist therapy with constructivist therapy and no treatment to decrease the severity of grief. A secondary purpose is to assess the effectiveness to prevent Persistent Complex Bereavement Disorder and Prolonged Grief Disorder, and to assess potential changes in avoidance, meaning-making and self-clarity. Subjective effects and Acceptance promoting effects of psychedelic drug are assessed after ayahuasca administration. A non-randomized controlled trial is proposed with three arms involving an experimental group (ayahuasca in concert with psychotherapy) and two control groups (psychotherapy and no treatment) with pretest, posttest and 3 months follow-up.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
84

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Oct 2021

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 15, 2021

Completed
2.1 years until next milestone

First Submitted

Initial submission to the registry

November 21, 2023

Completed
8 days until next milestone

First Posted

Study publicly available on registry

November 29, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 15, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 15, 2024

Completed
Last Updated

December 11, 2023

Status Verified

December 1, 2023

Enrollment Period

2.5 years

First QC Date

November 21, 2023

Last Update Submit

December 4, 2023

Conditions

Keywords

BereavementAyahuascaPsychotherapyPrevention

Outcome Measures

Primary Outcomes (1)

  • Change in the severity of grief symptoms

    Change in grief severity is measured by the present scale of Texas- Revised Grief Inventory (TRIG), a measure of normal grief symptoms. For the TRIG the minimum units are 0 and Maximum units on the total scale are 65. The higher the number on the TRIG, the more severe the symptoms.

    Time Frame: Baseline to End of Intervention, up to 3 months

Secondary Outcomes (1)

  • Prevalence of Persisten Complex Bereavement (PCBD) and prolonged Grief Symptoms (PGD).

    Baseline to End of Intervention, up to 3 months

Other Outcomes (7)

  • Individual's quality of life

    Baseline to End of Intervention, up to 3 months

  • Posttraumatic Growth

    Baseline to End of Intervention, up to 3 months

  • Avoidance

    Measured using the Acceptance and Action Questionnaire (AAQ-II). The AAQ-II has 7 items rated on a 7-point Likert scale ranging from 1 ("never true") to 7 ("always true") to assess indirectly acceptance. Higher scores indicate a higher avoidance.

  • +4 more other outcomes

Study Arms (3)

Experimental: Ayahuasca-assisted constructivist therapy.

EXPERIMENTAL

Constructivist psychotherapy will be delivered over 9 online psychotherapeutic sessions interconnected in 3 modules to process trauma, restore attachment security and reconstruct the self. One preparation session and two integration sessions after two ayahuasca administrations are included to the experimental group.

Drug: Ayahausca-Assisted psychotherapy

Constructivist Psychotherapy

ACTIVE COMPARATOR

Constructivist Psychotherapy will be delivered over 9 online psychotherapeutic sessions interconnected in 3 modules to process trauma, restore attachment security and reconstruct the self. Once the follow-up period is over (3 months), participants have the option of receiving 2 administrations of ayahuasca if the severity of grief is high.

Behavioral: Constructivist Psychotherapy

No treatment

OTHER

Participants received no treatment during the 9-week Control Period. Once the follow-up period is over (3 months), participants have the option of receiving 2 administrations of ayahuasca if the severity of grief is high.

Other: No treatment

Interventions

Drug: Two ayahuasca administrations (0.75 mg/kg DMT), after 3rd and 6th therapeutic session. Ayahuasca is a psychoactive mixture of plants which contains DMT as an active principle. Constructivist Psychotherapy will be delivered over 9 online psychotherapeutic sessions.

Also known as: Ayahausca-assisted grief therapy
Experimental: Ayahuasca-assisted constructivist therapy.

Constructivist Psychotherapy will be delivered over 9 online psychotherapeutic sessions

Constructivist Psychotherapy

No treatment during the control period

No treatment

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Experienced the loss of a first- degree relative not more than 12 months prior to enrollment as indicated by self-report.
  • Scores up to 40 in the Texas Revised Inventory of Grief (TRIG).

You may not qualify if:

  • Pregnant or breastfeeding women.
  • Hypertension (systolic blood pressure above 140 mm, diastolic above 90 mm and heart rate above 100 bpm).
  • History of psychotic disorder (Axis I-II of the DSM-V).
  • Substance use disorder (except nicotine).
  • Alcohol consumption greater than 40 g/day.
  • Receiving psychological or self-help therapy during the study on a regular basis.
  • Receiving regular pharmacological therapy for complicated grief during the study.
  • Regular intake of any type of medication in the month preceding the study.
  • Treatment with single doses of symptomatic medication during the study may be accepted (as long as it can be assumed that the ingested drug has been completely eliminated on the days of the ayahuasca administrations).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Institut de Recerca Holistica de Montserat (Irehom)

Barcelona, 08253, Spain

Location

Related Publications (1)

  • Sabucedo P, Andion O, Neimeyer RA, Soto-Angona O, Javkin J, Haro JM, Farre M, Gonzalez D. Ayahuasca-assisted meaning reconstruction therapy for grief: a non-randomized clinical trial protocol. Front Psychiatry. 2025 Jan 7;15:1484736. doi: 10.3389/fpsyt.2024.1484736. eCollection 2024.

Study Officials

  • Magi Farré

    Hospital German Trials I Pujol

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 21, 2023

First Posted

November 29, 2023

Study Start

October 15, 2021

Primary Completion

April 15, 2024

Study Completion

June 15, 2024

Last Updated

December 11, 2023

Record last verified: 2023-12

Locations