NCT06462391

Brief Summary

In the weeks prior to menstruation, many individuals experience mood and physical symptoms that negatively impact their quality of life and functioning. Approximately 5% of women and menstruating individuals have such severe symptoms that they meet criteria for Premenstrual Dysphoric Disorder (PMDD). Further, of those with underlying mood disorders (i.e., depression, bipolar disorder) about 60% have cyclical worsening of symptoms classified as premenstrual exacerbation (PME). Both PMDD and PME are associated with significant impairment, yet limited effective options exist to treat these conditions. In this project, the investigators will adapt and evaluate an Acceptance and Commitment Therapy (ACT) group for PMDD and PME, entitled ACT-Premenstrual (ACT-PM), delivered virtually to maximize accessibility. The investigators will examine whether ACT-PM is feasible to deliver and whether it is acceptable to group participants and those facilitating the group. The study will lay the groundwork for future research to determine if the group is effective. If effective, the intervention could be scaled up to improve quality of life and outcomes for individuals suffering from PMDD and PME.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
8mo left

Started Dec 2024

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
active not recruiting

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 Progress69%
Dec 2024Dec 2026

First Submitted

Initial submission to the registry

May 16, 2024

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 17, 2024

Completed
6 months until next milestone

Study Start

First participant enrolled

December 1, 2024

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

December 22, 2025

Status Verified

December 1, 2025

Enrollment Period

1.6 years

First QC Date

May 16, 2024

Last Update Submit

December 19, 2025

Conditions

Outcome Measures

Primary Outcomes (10)

  • Feasibility of recruitment and enrollment: number of participants referred

    Tracking to see how many referrals are made to the study

    Screening and baseline

  • Feasibility of recruitment and enrollment: number of participants eligible

    Tracking number of participants that were eligible out of the number that was referred

    Screening and baseline

  • Feasibility of recruitment and enrollment to study: number of participants enrolled

    Tracking number of participants that enrolled into the study

    Screening and baseline

  • Feasibility of recruitment and enrollment to study: reasons for non-participation

    Tracking number of participants who did not enroll into the study and any reasons given by these participants

    Screening and baseline

  • Adoption outcome: group attendance

    Tracking group attendance per session

    During intervention, post-intervention (after 8 weeks of intervention)

  • Adoption outcome: group completion

    Tracking how many participants completed the group

    During intervention, post-intervention (after 8 weeks of intervention)

  • Adoption outcome: reasons for non-completion

    Tracking the reasons why participants did not complete the group

    During intervention, post-intervention (after 8 weeks of intervention)

  • Acceptability outcome

    Determining the acceptability of the program among participants and facilitators via questionnaires about their experience in the program.

    Post-intervention (after 8 weeks of intervention), and at 3-month follow-up

  • Adherence with intervention protocol: therapist adherence

    (1) assessing therapist adherence to ACT-PM intervention via self-report from therapists and (2) independent rater review of 10% of audio tapes of sessions using ACT-FM (The ACT Fidelity Measure)

    During and post-intervention (after 8 weeks of intervention)

  • Adherence with intervention protocol: completion of participant questionnaires

    Tracking number of participants who completed data collection measures (i.e.. acceptability questionnaire, and clinical scales - described below)

    Baseline, during intervention, post-intervention (after 8 weeks of intervention), and at 3-month follow-up

Secondary Outcomes (8)

  • Exploratory clinical symptoms outcome: McMaster Premenstrual And Mood Symptom Scale (MAC PMSS)

    Baseline, post-intervention (after 8 weeks of intervention), and at 3-month follow-up

  • Exploratory clinical symptoms outcome: Premenstrual Symptoms Screening Tool (PSST)

    Baseline, post-intervention (after 8 weeks of intervention), and at 3-month follow-up

  • Exploratory clinical symptoms outcome: The Patient Health Questionnaire-9 (PHQ-9)

    Baseline, post-intervention (after 8 weeks of intervention), and at 3-month follow-up

  • Exploratory clinical symptoms outcome: The Generalized Anxiety Disorder-7 (GAD-7)

    Baseline, post-intervention (after 8 weeks of intervention), and at 3-month follow-up

  • Exploratory clinical symptoms outcome: The Acceptance and Action Questionnaire (AAQ-II)

    Baseline, post-intervention (after 8 weeks of intervention), and at 3-month follow-up

  • +3 more secondary outcomes

Study Arms (1)

single arm (open label)

OTHER

all participants will be in pilot psychotherapy group

Behavioral: Acceptance and Commitment Therapy (ACT) Group

Interventions

Psychotherapy group (delivered virtually)

single arm (open label)

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • (1) diagnosed by the psychiatrist who conducted the initial assessment with either Premenstrual Dysphoric Disorder (PMDD), or a bipolar or depressive disorder where there is Premenstrual Exacerbation (PME), after 2-3 months of mood tracking using a validated evidenced based scale for premenstrual mood symptoms (McMaster Premenstrual And Mood Symptom Scale (MAC-PMSS) or similar;
  • (2) have internet access and a video-enabled device;
  • (3) residing in Ontario for the duration of the study, necessary because MDs and therapists who could deliver the intervention are all licensed provincially;
  • (4) regular menstrual cycles (\~21-35 days); and
  • (5) have a regularly treating physician (e.g. psychiatrist or primary care provider).

You may not qualify if:

  • (1) active alcohol or substance use disorder in the previous 12 months;
  • (2) active suicidal ideation, mania, psychosis, or violence;
  • (3) current pregnancy or planning a pregnancy during the duration of the study
  • (4) inability to complete group and/or study measures in English, necessary as the pilot group is only available in English at this time.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Women's College Hospital

Toronto, Ontario, L5M6N8, Canada

Location

Women's College Hospital

Toronto, Ontario, M5S 1B2, Canada

Location

MeSH Terms

Conditions

Premenstrual Dysphoric Disorder

Interventions

Population Groups

Condition Hierarchy (Ancestors)

Premenstrual SyndromeMenstruation DisturbancesPathologic ProcessesPathological Conditions, Signs and SymptomsDepressive DisorderMood DisordersMental Disorders

Intervention Hierarchy (Ancestors)

DemographyPopulation Characteristics

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Model Details: open label pilot feasibility study
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Psychiatrist, Principal Investigator

Study Record Dates

First Submitted

May 16, 2024

First Posted

June 17, 2024

Study Start

December 1, 2024

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

December 22, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations