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Comparing the effectiveness of two online interventions for sub-threshold and mild obsessive-compulsive symptoms: a randomised controlled trial

The OCEAN Study: a randomised controlled trial comparing the effect of online acceptance and commitment therapy and progressive relaxation on symptom severity and psychological flexibility in sub-threshold and mild obsessive-compulsive symptoms.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12621000419864
Enrollment
85
Registered
2021-04-15
Start date
2021-04-21
Completion date
2022-06-30
Last updated
2022-04-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This study aims to compare the effectiveness of two online interventions for individuals with subclinical and mild OC symptoms. Through a randomised controlled design, we will compare the acceptability and effectiveness of the interventions in improving obsessions and compulsions, depression, anxiety, psychological flexibility and quality of life. We hypothesise that improvement in psychological flexibility will predict greater reduction in obsessions and compulsions and comorbid symptoms at post-treatment.

Interventions

The intervention is an online Acceptance and Commitment Therapy (ACT) program called YOLO (You Only Live Once; Viskovich & Packenham, 2019). The program involves 4 modules that target the ACT processes: acceptance, defusing from thoughts, mindfulness and observer self, and values and committed action. Participants are given 6 weeks to complete the modules in their own home and on a device that has an internet connection. Each module is 30-50 minutes in length, however consists of several small e

The intervention is an online Acceptance and Commitment Therapy (ACT) program called YOLO (You Only Live Once; Viskovich & Packenham, 2019). The program involves 4 modules that target the ACT processes: acceptance, defusing from thoughts, mindfulness and observer self, and values and committed action. Participants are given 6 weeks to complete the modules in their own home and on a device that has an internet connection. Each module is 30-50 minutes in length, however consists of several small exercises of 5-10 minutes each, including animated presentations, you-tube clips, audio files and written exercises that are based on ACT. The intervention is not personalised to participants. Participants receive automated email reminders every 2-8 days to prompt engagement over the 6-week active intervention period. A standard automated email will be sent after a participant has completed a module, providing a recap of the module and skills to practice during the week. Adherence to the modules and the exercises within them will be monitored by the student researcher by accessing website analytics.

Sponsors

Monash University
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Caregiver)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Participants will a) endorse sub-clinical or mild obsessive-compulsive symptoms, as define by Dimensional Obsessive-Compulsive Scale (DOCS) scores >11 and <32, and b) be fluent in English.

Exclusion criteria

The following exclusion criteria will be used to screen out severe presentations that potentially need more intensive or disorder-specific interventions, or to control for confounding impact of parallel treatment changes: (a) a history of psychotic symptoms (b) acute suicidal tendencies, (c) or have begun or modified psychiatric or psychological treatment within 8 weeks of beginning the study,

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026