Think Life, an Online Self-help Intervention for Coping With Suicidal Ideation

Study Overview
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Brief Summary
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The objective of the Think Life study is to test the effect of an online, unguided self-help intervention, i.e. Think Life. The primary hypothesis is that Think Life will reduce suicidal ideation. The secondary hypothesis is that Think Life will lead to improvements in depressive symptoms, hopelessness, rumination, and anxiety. Positive changes are expected after completing Think Life and at follow-up, twelve weeks after baseline.

Official Title
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A Randomized Controlled Trial on the Effectiveness of an Online Self-help Intervention for Suicidal Ideation

Conditions
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Suicidal Ideation

Intervention / Treatment
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* Behavioral: Online self-help intervention


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 18 years or older Have internet access and an e-mail account Exclusion Criteria: No suicidal thoughts (i.e. baseline score on Beck Scale for Suicide Ideation = 0)

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intervention group<br>The intervention group gains access to Think Life, an online self-help intervention. During 6 weeks they receive a new module on a weekly basis. | Behavioral: Online self-help intervention<br>* The intervention was originally developed by van Spijker, van Straten, and Kerkhof (2010). For this study, it was adapted to the Flemish context and called Think Life. Think Life is mainly based Cognitive Behaviour Therapy (CBT). Additionally, it encompasses elements from Dialectical Behaviour Therapy (DBT), Problem Solving Therapy (PST), and Mindfulness Based Cognitive Therapy (MBCT). It encompasses six modules and every module starts with a psycho-educational section followed by a weekly assignment, core exercises and optional exercises. The participant weekly receives access to a new module. A more detailed description of the intervention is described elsewhere (Kerkhof, van Spijker, & Mokkenstorm, 2013; van Spijker et al., 2010; van Spijker, van Straten, et al., 2014).<br>* Other names: Think Life;|
| No Intervention: Control group<br>Waitlist control group. They receive access to Think Life after 12 weeks. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Beck Scale for Suicide Ideation | Changes in severity of suicidal ideation | Baseline, and 2, 4, 6 (post-test) and 12 weeks (follow-up) after baseline | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Suicidal Ideation Attributes | Changes in severity of suicidal ideation | Baseline, and 2, 4, 6 (post-test) and 12 weeks (follow-up) after baseline | 
| Beck Depression Inventory - second edition | Changes in symptoms and severity of depression | Baseline, and 2, 4, 6 (post-test) and 12 weeks (follow-up) after baseline | 
| Beck Hopelessness Scale | Changes in one's negative attitude towards the future | Baseline, and 6 (post-test) and 12 weeks (follow-up) after baseline | 
| Penn State Worry Questionnaire - Past Week | Changes in degree of worrying | Baseline, and 6 (post-test) and 12 weeks (follow-up) after baseline | 
| Hospital Anxiety and Depression Scale | Changes in anxiety | Baseline, and 6 (post-test) and 12 weeks (follow-up) after baseline | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Suicidal ideation, Suicide, Cognitive behavioral therapy, Online intervention