Ayahuasca-assisted meaning reconstruction therapy as an early resource for bereavement: a non-randomized clinical trial
In this non-randomised, three-arm clinical trial of 84 adults bereaved within 12 months, ayahuasca-assisted meaning reconstruction therapy (A-MR) was well tolerated and produced significantly larger reductions in grief severity and greater improvements in prolonged grief symptoms, post‑traumatic growth and quality of life than meaning reconstruction alone or no treatment. These preliminary findings support A-MR as a potentially effective early intervention for severe grief but require replication in larger randomised trials.
Authors
- Magí Farré
- Débora González
Published
Abstract
Preliminary evidence suggests that ayahuasca may alleviate severe grief symptoms. This three-arm, sequentially allocated, open-label study examines the therapeutic changes associated with ayahuasca-assisted meaning reconstruction therapy (A-MR) compared to meaning reconstruction therapy alone (MR) and a no-treatment control (NT). A total of 84 adults experiencing severe grief within 12 months of losing a first-degree relative were allocated to A-MR (n = 28), MR (n = 28), or NT (n = 28). Grief severity, prolonged grief disorder symptoms, post-traumatic growth, and quality of life were assessed at baseline, after the intervention, and 3 months post-intervention. Ayahuasca was well tolerated, with no serious adverse events reported. All groups showed significant grief severity reduction (A-MR: p < .0001, d = 2.44; MR: p < .0001, d = 1.84; NT: p < .002, d = 0.74). Greater reductions were observed in the A-MR compared to MR (p = .012, d = 0.86) and NT (p = .0008, d = 1.07). A-MR was also associated with significant improvements in prolonged grief symptomatology, post-traumatic growth, and quality of life, with medium-to-large effect sizes. This is the first controlled prospective study to provide preliminary support for A-MR as a safe and potentially effective intervention for severe grief, though replication in larger randomized trials is required.
Research Summary of 'Ayahuasca-assisted meaning reconstruction therapy as an early resource for bereavement: a non-randomized clinical trial'
Introduction
Soto-Angona and colleagues frame bereavement as a normal but variably prolonged response to loss, noting that a subset of bereaved people develop persistent, functionally impairing grief within the first year after the death. Earlier research has suggested that ayahuasca can induce phenomenological experiences that correlate with reductions in depressive symptoms and may support emotional processing, meaning-making, and the redefinition of attachment to the deceased. The authors note that existing early interventions have not reliably prevented Prolonged Grief Disorder (PGD) and that antidepressant medication lacks evidence as a standalone treatment for PGD, highlighting a gap for effective early supportive therapies that might reduce both psychological and early physical risks after bereavement. This study set out to evaluate whether an ayahuasca-assisted therapy integrated with a meaning reconstruction framework (A-MR) reduces grief severity and PGD symptoms more than the meaning reconstruction therapy alone (MR) or a no-treatment control (NT) in people who had lost a first-degree relative within the previous 12 months. The investigators also examined secondary outcomes of post-traumatic growth and quality of life, and assessed safety and tolerability. They hypothesised that A-MR would produce larger reductions in grief and PGD symptoms and greater improvements in post-traumatic growth and quality of life that would persist to a three-month follow-up.
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Study Details
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- APA Citation
Soto-Angona, O., Andión, O., Sabucedo, P., Neimeyer, R. A., Haro, J. M., Javkin, J., Farré, M., & González, D. (2025). Ayahuasca-assisted meaning reconstruction therapy as an early resource for bereavement: a non-randomized clinical trial. Scientific Reports, 15(1). https://doi.org/10.1038/s41598-025-13251-5
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