Obsessive-Compulsive Disorder (OCD)OCDtreatmentNCT07465354
OCD Summer Treatment Program for Adolescents in Iceland
A study testing Intensive cognitive-behavioral treatment with exposure / response prevention in people with Obsessive-Compulsive Disorder (OCD), run by University of Iceland at 1 site in Iceland.
Trial summary
The aim of the study is to examine the effectiveness of OCD treatment delivered in a group format for adolescents during a two week intensive summer treatment program. Read more about this study
- Who is it for?
- Ages 12 to 18 years
- Conditions the study is for
- Obsessive-Compulsive Disorder (OCD)
- What is being tested?
- Intensive cognitive-behavioral treatment with exposure / response prevention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 70 participants
- Where
- 1 siteIceland
- Study dates
- 1 Jun 2026to 1 Sep 2033
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 12 to 18 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- OCD diagnosis
- Adolescents are fluent in Icelandic
- Parents are fluent in Icelandic or English
Who cannot join
- Intellectual disability
- Severe suicidal ideation
- Schizophrenia
- Severely impairing levels of autism
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Iceland1 site, 1 recruiting
- Recruiting
University of Iceland
Reykjavik, 102
Dagmar Kr. Hannesdottir, PhD, +354 525 4351, dkh@hi.is
About this study
Official title: Intensive OCD Summer Treatment Program for 12-18-year-old Adolescents in Iceland
The aim of the study is to examine the effectiveness of OCD treatment delivered in a group format for adolescents during a two week intensive summer treatment program.
Read the detailed description
The present study evaluates the effectiveness of the Icelandic adaptation of the Pediatric OCD Summer Program, originally developed by the British Columbia Children's Hospital in Vancouver, Canada. Specifically, it investigates the efficacy of this intensive intervention for Icelandic adolescents with OCD and their parents. The study also examines how executive functioning and emotion regulation may change over the course of treatment and influence outcomes, particularly among adolescents with co-occurring neurodevelopmental conditions such as ADHD and/or autism. The program will be implemented annually as an open clinical trial to accumulate a larger dataset and address these research questions comprehensively.
- Conditions
- Obsessive-Compulsive Disorder (OCD)
- Being tested
- Intensive cognitive-behavioral treatment with exposure / response prevention
- Keywords
- Obsessive-compulsive disorder, Adolescents, intensive cognitive-behavioral treatment, Exposure and response prevention
- Medical subject headings
- Obsessive-Compulsive Disorder
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Intensive cognitive-behavioral treatment with exposure / response preventionBehavioural
This cognitive-behavioral exposure / response prevention program is delivered intensively over two consecutive weeks, consisting of daily 2.5-hour sessions across 10 days. Each group includes 6-8 adolescents, with every participant paired with an individual therapist for each session, though therapists rotate daily. At the outset, adolescents receive workbooks and psychoeducation on the nature of obsessive thoughts and compulsive behaviors, along with strategies to manage symptoms and reduce impairment. The primary focus of the program is individualized exposure exercises conducted with a therapist during each session. Designed for adolescents aged 12-18, the program also includes parent sessions, in which parents learn to manage anxiety-driven behaviors at home and reduce family accommodation.
| Study group | Role | What they receive |
|---|---|---|
| Intensive group-based cognitive-behavioral treatment | Experimental | This cognitive-behavioral exposure / response prevention program is delivered intensively over two consecutive weeks, consisting of daily 2.5-hour sessions across 10 days. Each group includes 6-8 adolescents, with every participant paired with an individual therapist for each session, though therapists rotate daily. At the outset, adolescents receive workbooks and psychoeducation on the nature of obsessive thoughts and compulsive behaviors, along with strategies to manage symptoms and reduce impairment. The primary focus of the program is individualized exposure exercises conducted with a therapist during each session. Designed for adolescents aged 12-18, the program also includes parent sessions, in which parents learn to manage anxiety-driven behaviors at home and reduce family accommodation. Receives: Behavioral: Intensive cognitive-behavioral treatment with exposure / response prevention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Behavioral Rating Inventory of Executive Function (BRIEF)
A questionnaire designed to assess executive functioning in children and adolescents aged 5 to 18 years (Gioia et al., 2000). The questionnaire consists of 86 items with three response options: never = 1, sometimes = 2, and often = 3. A higher score on the BRIEF indicates greater executive functioning difficulties. The first 72 items are divided into eight clinical subscales that measure different aspects of executive function. These clinical subscales fall under two broader indices: the Behavioral Regulation Index (BRI) and the Metacognition Index (MI), which together form a Global Executive Composite (GEQ) score. The psychometric properties of the Icelandic version have proven to be acceptable.
Measured: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS)
This is a semi-structured interview (Scahill et al., 1997) intended to assess the symptoms and severity of obsessive compulsive disorder in children and adolescents aged 6-17 years. The scores range from 0-40, a higher score indicating more OCD related impairment with a clinical cut-off score of 15. The interview is conducted either with both the child and parent present or, in some cases, separately. The interview method depends, among other things, on the child´s age and developmental level. This interview is widely used, both for clinical purposes and in research, and has been translated into many languages. Today, it is considered the gold standard for assessing the severity of OCD symptoms and treatment response and is the most commonly and widely accepted tool for such evaluations (Mataix-Cols et al, 2016; Skarphedinsson et al, 2017). The interview has demonstrated strong psychometric properties (Cook et al., 2015; Højgaard et al., 2017).
Measured: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
The Child Obsessive-Compulsive Impact Scale (COIS-R)
This is a 55-item questionnaire that assesses functional impairment due to OCD in the child's most important environments (home, school, and social situations) (Piacentini et al, 2007). Each question is rated on a Likert scale from 0-3 and a higher score indicates more OCD related impairment. The adolescents will complete the child/adolescent form and parents will complete the parent form.
Measured: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
Revised Children 's Anxiety and Depression Scale (RCADS)
This is a commonly used questionnaire to screen for anxiety and depressive disorders and to assess changes following an intervention. The RCADS is a 47-item questionnaire designed for parents and children (ages 8-17) and includes the following scales: Generalized Anxiety Disorder, Separation Anxiety Disorder, Social Anxiety Disorder, Panic Disorder, Obsessive-Compulsive Disorder, and Depressive Symptoms. Items are rated on a four-point scale and higher scores indicate more difficulties: 0 = never, 1 = sometimes, 2 = often, 3 = always. The Icelandic version has acceptable psychometric properties in both general and clinical populations.
Measured: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
Secondary outcomes (1)
Family Accommodation Scale for OCD- Self-Rated (FAS-SR)
This is a 19-item scale developed to assess the extent to which the family attempts to accommodate the child´s symptoms to reduce distress. The scale is completed by parents and includes items such as how much the family tries to reassure the child, alter plans and activities, or help the child to avoid objects, places, or situations that cause distress. Scores range from 0-48 and higher scores indicate more family accommodation. The scale has acceptable psychometric properties, including internal consistency of 0.90 and high correlation with the standardized Family Accommodation Interview (Pinto et al., 2013).
Measured: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Mar 2026
- Study start1 Jun 2026
- Primary completion1 Sep 2030 (estimated)
- Study completion1 Sep 2033 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Obsessive-Compulsive Disorder (OCD)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- This study uses a longitudinal within subjects' design to examine the effectiveness of an intensive group-based OCD treatment among adolescents in Iceland. Participants will answer a set of questionnaires and interviews at four time points: pre-treatment, post-treatment, 6-month follow-up, 12-month follow-up.
- Masking
- None (open label)
- Enrolment
- 70 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Iceland
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07465354
- Sponsor's protocol ID
- UI-2025-OCDsummerprogram
- Acronym
- OCDtreatment
- Status last verified
- Jun 2026
- First submitted
- 6 Mar 2026
- Last updated
- 10 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: As the study includes repeated measures of a clinical child population, parts of the data will be classified as sensitive personal data and thus restricted by the permit from the National Bioethics Committee of Iceland.
Publications
Selles RR, Belschner L, Negreiros J, Lin S, Schuberth D, McKenney K, Gregorowski N, Simpson A, Bliss A, Stewart SE. Group family-based cognitive behavioral therapy for pediatric obsessive compulsive disorder: Global outcomes and predictors of improvement. Psychiatry Res. 2018 Feb;260:116-122. doi: 10.1016/j.psychres.2017.11.041. Epub 2017 Nov 15.
PubMed 29179016
Study at a glance
From the registry record, last updated by the sponsor on 10 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Intensive OCD Summer Treatment Program for 12-18-year-old Adolescents in Iceland
- ClinicalTrials.gov ID
- NCT07465354
- Acronym / sponsor ID
- OCDtreatment / UI-2025-OCDsummerprogram
- Conditions
- Obsessive-Compulsive Disorder (OCD)
- Keywords
- Obsessive-compulsive disorder, Adolescents, intensive cognitive-behavioral treatment, Exposure and response prevention
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 70 participants (estimated)
- Lead sponsor
- University of IcelandUniversity, hospital or other
- Study start
- 1 Jun 2026 (actual)
- Primary completion
- 1 Sep 2030 (estimated)
- Study completion
- 1 Sep 2033 (estimated)
- First posted
- 11 Mar 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of the study is to examine the effectiveness of OCD treatment delivered in a group format for adolescents during a two week intensive summer treatment program.
Detailed description
The present study evaluates the effectiveness of the Icelandic adaptation of the Pediatric OCD Summer Program, originally developed by the British Columbia Children's Hospital in Vancouver, Canada. Specifically, it investigates the efficacy of this intensive intervention for Icelandic adolescents with OCD and their parents. The study also examines how executive functioning and emotion regulation may change over the course of treatment and influence outcomes, particularly among adolescents with co-occurring neurodevelopmental conditions such as ADHD and/or autism. The program will be implemented annually as an open clinical trial to accumulate a larger dataset and address these research questions comprehensively.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- This study uses a longitudinal within subjects' design to examine the effectiveness of an intensive group-based OCD treatment among adolescents in Iceland. Participants will answer a set of questionnaires and interviews at four time points: pre-treatment, post-treatment, 6-month follow-up, 12-month follow-up.
| Arm | Type | Receives |
|---|---|---|
| Intensive group-based cognitive-behavioral treatment | Experimental | Behavioral: Intensive cognitive-behavioral treatment with exposure / response preventionThis cognitive-behavioral exposure / response prevention program is delivered intensively over two consecutive weeks, consisting of daily 2.5-hour sessions across 10 days. Each group includes 6-8 adolescents, with every participant paired with an individual therapist for each session, though therapists rotate daily. At the outset, adolescents receive workbooks and psychoeducation on the nature of obsessive thoughts and compulsive behaviors, along with strategies to manage symptoms and reduce impairment. The primary focus of the program is individualized exposure exercises conducted with a therapist during each session. Designed for adolescents aged 12-18, the program also includes parent sessions, in which parents learn to manage anxiety-driven behaviors at home and reduce family accommodation. |
Who may qualify
- Ages
- 12 to 18 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (3 listed)
- OCD diagnosis
- Adolescents are fluent in Icelandic
- Parents are fluent in Icelandic or English
Key exclusion criteria (4 listed)
- Intellectual disability
- Severe suicidal ideation
- Schizophrenia
- Severely impairing levels of autism
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Intensive cognitive-behavioral treatment with exposure / response preventionThis cognitive-behavioral exposure / response prevention program is delivered intensively over two consecutive weeks, consisting of daily 2.5-hour sessions across 10 days. Each group includes 6-8 adolescents, with every participant paired with an individual therapist for each session, though therapists rotate daily. At the outset, adolescents receive workbooks and psychoeducation on the nature of obsessive thoughts and compulsive behaviors, along with strategies to manage symptoms and reduce impairment. The primary focus of the program is individualized exposure exercises conducted with a therapist during each session. Designed for adolescents aged 12-18, the program also includes parent sessions, in which parents learn to manage anxiety-driven behaviors at home and reduce family accommodation. | Behavioural | Intensive group-based cognitive-behavioral treatment |
Primary outcome
Behavioral Rating Inventory of Executive Function (BRIEF)
Time frame: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
A questionnaire designed to assess executive functioning in children and adolescents aged 5 to 18 years (Gioia et al., 2000). The questionnaire consists of 86 items with three response options: never = 1, sometimes = 2, and often = 3. A higher score on the BRIEF indicates greater executive functioning difficulties. The first 72 items are divided into eight clinical subscales that measure different aspects of executive function. These clinical subscales fall under two broader indices: the Behavioral Regulation Index (BRI) and the Metacognition Index (MI), which together form a Global Executive Composite (GEQ) score. The psychometric properties of the Icelandic version have proven to be acceptable.
Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS)
Time frame: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
This is a semi-structured interview (Scahill et al., 1997) intended to assess the symptoms and severity of obsessive compulsive disorder in children and adolescents aged 6-17 years. The scores range from 0-40, a higher score indicating more OCD related impairment with a clinical cut-off score of 15. The interview is conducted either with both the child and parent present or, in some cases, separately. The interview method depends, among other things, on the child´s age and developmental level. This interview is widely used, both for clinical purposes and in research, and has been translated into many languages. Today, it is considered the gold standard for assessing the severity of OCD symptoms and treatment response and is the most commonly and widely accepted tool for such evaluations (Mataix-Cols et al, 2016; Skarphedinsson et al, 2017). The interview has demonstrated strong psychometric properties (Cook et al., 2015; Højgaard et al., 2017).
The Child Obsessive-Compulsive Impact Scale (COIS-R)
Time frame: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
This is a 55-item questionnaire that assesses functional impairment due to OCD in the child's most important environments (home, school, and social situations) (Piacentini et al, 2007). Each question is rated on a Likert scale from 0-3 and a higher score indicates more OCD related impairment. The adolescents will complete the child/adolescent form and parents will complete the parent form.
Revised Children 's Anxiety and Depression Scale (RCADS)
Time frame: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
This is a commonly used questionnaire to screen for anxiety and depressive disorders and to assess changes following an intervention. The RCADS is a 47-item questionnaire designed for parents and children (ages 8-17) and includes the following scales: Generalized Anxiety Disorder, Separation Anxiety Disorder, Social Anxiety Disorder, Panic Disorder, Obsessive-Compulsive Disorder, and Depressive Symptoms. Items are rated on a four-point scale and higher scores indicate more difficulties: 0 = never, 1 = sometimes, 2 = often, 3 = always. The Icelandic version has acceptable psychometric properties in both general and clinical populations.
1 secondary outcome
Family Accommodation Scale for OCD- Self-Rated (FAS-SR)
Time frame: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Sep 2026.
- Background: PubMed 29179016Selles RR, Belschner L, Negreiros J, Lin S, Schuberth D, McKenney K, Gregorowski N, Simpson A, Bliss A, Stewart SE. Group family-based cognitive behavioral therapy for pediatric obsessive compulsive disorder: Global outcomes and predictors of improvement. Psychiatry Res. 2018 Feb;260:116-122. doi: 10.1016/j.psychres.2017.11.041. Epub 2017 Nov 15.
- Individual participant dataSharing planned: No. As the study includes repeated measures of a clinical child population, parts of the data will be classified as sensitive personal data and thus restricted by the permit from the National Bioethics Committee of Iceland.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Intensive cognitive-behavioral treatment with exposure / response prevention in people with Obsessive-Compulsive Disorder (OCD), run by University of Iceland at 1 site in Iceland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 10 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Iceland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Dagmar Kr. Hannesdottir, PhD (+354 525 4351, dkh@hi.is), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Behavioral Rating Inventory of Executive Function (BRIEF) (time frame: Baseline, 1 week after treatment, 6 month follow-up, 12 month follow-up). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07465354, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Sep 2026.