Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Noninvasive brain stimulation to help prolonged grief

Official title: Transcranial Magnetic Stimulation to Treat Prolonged Grief Disorder: A Single-centre, Single-arm, Open-label Phase I/II Proof-of-concept and Feasibility Clinical Trial

Run by Bruyère Health Research Institute. · NCT06953596 · Data updated 2026-11-12

This study tests whether repetitive transcranial magnetic stimulation (rTMS) can help adults with prolonged grief disorder who are coping poorly.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment15 (estimated)
SponsorBruyère Health Research Institute.
Academic / other
Locations1 site (Ottawa, Ontario)
StatusRecruiting
StartedNovember 28, 2025
Main results expectedJune 2027
Study endsSeptember 2027
Registry record updatedJuly 10, 2026
Trial IDNCT06953596 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) who are bereaved and meet criteria for significant PGD.

Probably not a fit

Participants without a detectable response or with exclusion criteria may not experience benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This interventional study investigates the use of repetitive transcranial magnetic stimulation (rTMS) as a potential treatment for Prolonged Grief Disorder (PGD). Eligible adults who are bereaved and have significant PGD symptoms will receive rTMS sessions to targeted brain areas, with the goal of reducing grief-related distress. The approach is non-invasive and has been used for mood disorders; this study explores its feasibility and potential benefit for PGD. The research focuses on safety, tolerability, and preliminary signals of symptom improvement, with careful monitoring and standardized assessments. The trial is conducted at Bruyère Health in Ottawa, under a proof-of-concept framework to inform future larger studies.

Why it matters

Potential benefit: If successful, participants may experience reduced grief distress and improved quality of life.

How similar studies have gone: Prior research on rTMS for mood disorders supports safety and feasibility, but its effectiveness for PGD is exploratory.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Bereaved individuals \>/= 18 years of age
2. Score \>25 on the Inventory of Complicated Grief
3. Must have a primary care physician
4. Ability to understand and communicate in English
5. Ability to provide first-person informed consent

Exclusion Criteria:

1. Current or previously diagnosed seizure disorder
2. Documented brain lesions
3. Contraindications to TMS (i.e., metallic skull plates, clips, stimulators, pacemakers)
4. Current substance abuse disorder (e.g., schizophrenia)
5. Pregnancy or lactation, or trying to conceive
6. Advanced, incurable illness with an expected prognosis of \<3 months - bereaved family members are known to be at elevated risk of death from medical illness, but if death is expected in the near future, it would be difficult to justify using an entire week of their limited time for an unproven therapy.

Where it's running

  • Bruyere Health
    Ottawa, Ontario, Canada
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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  • Internet therapy for prolonged grief disorder

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  • 8-week mindfulness program for adults with prolonged grief disorder

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.