Anorexia NervosaNCT06497101
Effectiveness Trial of Temperament Based Therapy With Support (TBT-S)
A study testing Temperament Based Therapy with Support (TBT-S) in people with Anorexia Nervosa, run by Oslo University Hospital at 1 site in Norway.
Trial summary
The main aim of this project is to determine the short and long-term effectiveness of an out-patient treatment for patients with anorexia nervosa. Specifically, we will measure whether TBT-S in addition to treatment as usual (TAU) will be more effective than TAU alone in reducing eating disorder psychopathology. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Anorexia Nervosa
- What is being tested?
- Temperament Based Therapy with Support (TBT-S)
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 120 participants
- Where
- 1 siteNorway
- Study dates
- 15 Nov 2024to 1 Sep 2028
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age ≥18, all genders
- A Diagnostic and Statistical Manual of Mental Disorders (DSM-5) diagnosed anorexia nervosa disorder (F50.0, F50.01, F50.02, also including F50.9 - atypical anorexia nervosa)
- Willingness to have Support(s) participate in treatment
- Medically stable
Who cannot join
- Intellectual developmental disorder or intellectual disability; psychotic disorder or other psychopathology that may affect or prevent participation in the study
- diagnosed alcohol or other substance use disorder within 3 months prior to study initiation
- ongoing inpatient treatment at the time of study enrollment (participants currently in inpatient care must be discharged and engaged in outpatient treatment before participating in the TBT-S week
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Norway1 site, 1 recruiting
- Recruiting
Oslo University Hospital, Regional Department for Eating Disorders
Oslo
Kristin Stedal, PhD, +4791321971, krsted@ous-hf.no
About this study
Official title: Effectiveness of Temperament Based Therapy With Support (TBT-S): A Novel 5-day Treatment for Anorexia Nervosa
The main aim of this project is to determine the short and long-term effectiveness of an out-patient treatment for patients with anorexia nervosa. Specifically, we will measure whether TBT-S in addition to treatment as usual (TAU) will be more effective than TAU alone in reducing eating disorder psychopathology. Assessments will be conducted at four timepoints; pre and post TBT-S, and at 3 and 12 months follow-up. Primary outcome measure is eating disorder psychopathology, with the hypothesis that patients receiving TBT-S in addition to TAU will show significantly greater reduction in eating disorder psychopathology from TBT-S treatment admission to 3 month follow-up, compared to controls.
Read the detailed description
Participants in the intervention arm will receive five days of TBT-S in addition to treatment as usual. TBT-S is administered to three to six adult anorexia nervosa patients with up to four supports per patient. The treatment structure consists of five consecutive days of treatment, up to 7,5 hours each day. Staff requirements for TBT-S are three clinicians, one dietician and one medical staff. Adults referred to a local psychiatric centre (DPS) for out-patient anorexia nervosa treatment, and their supports, will be eligible to participate in the study.
- Conditions
- Anorexia Nervosa
- Being tested
- Temperament Based Therapy with Support (TBT-S)
- Medical subject headings
- Anorexia Nervosa
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Temperament Based Therapy with Support (TBT-S)Behavioural
Also called TBT-S
Participants included in the intervention arm will receive TBT-S (5-day treatment) in addition to treatment as usual (TAU)
| Study group | Role | What they receive |
|---|---|---|
| Temperament Based Therapy with Support (TBT-S) | Experimental | TBT-S in addition to treatment as usual Receives: Behavioral: Temperament Based Therapy with Support (TBT-S) |
| Treatment as Usual (TAU) | No intervention | Treatment as Usual |
What is being measured
The primary outcome is the main question the study is designed to answer.
Eating Disorder Psychopathology
Eating Disorders Examination Questionnaire (EDE-Q). Participants report symptomatology on a 7-point Likert scale from 0 (no days) to 6 (everyday). The EDE-Q contains 4 subscales: Restraint, Weight Concern, Eating Concern, and Shape Concern. Subscale scores are calculated by finding the averages of the subscale items. A global score is also calculated by averaging the subscale scores. Scores range from 0 to 6; higher scores indicate higher levels of eating disorder pathology.
Measured: Baseline, after 1 week and at 3 and 12 months 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 Jul 2024
- Study start15 Nov 2024
- Primary completion31 Dec 2027 (estimated)
- Study completion1 Sep 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Anorexia NervosaStudies of the same condition, open and under way.
- More trials run by Oslo University HospitalThe sponsor's other registered studies.
- 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
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 120 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Oslo University Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Kristin Stedal, Oslo University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06497101
- Sponsor's protocol ID
- 728279
- Status last verified
- Feb 2026
- First submitted
- 4 Jul 2024
- Last updated
- 2 Mar 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: There are no plans to make individual participant data (IPD) available to other researchers.
Study at a glance
From the registry record, last updated by the sponsor on 2 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effectiveness of Temperament Based Therapy With Support (TBT-S): A Novel 5-day Treatment for Anorexia Nervosa
- ClinicalTrials.gov ID
- NCT06497101
- Acronym / sponsor ID
- 728279
- Conditions
- Anorexia Nervosa
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 120 participants (estimated)
- Lead sponsor
- Oslo University HospitalUniversity, hospital or other
- Study start
- 15 Nov 2024 (actual)
- Primary completion
- 31 Dec 2027 (estimated)
- Study completion
- 1 Sep 2028 (estimated)
- First posted
- 11 Jul 2024 (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 main aim of this project is to determine the short and long-term effectiveness of an out-patient treatment for patients with anorexia nervosa. Specifically, we will measure whether TBT-S in addition to treatment as usual (TAU) will be more effective than TAU alone in reducing eating disorder psychopathology. Assessments will be conducted at four timepoints; pre and post TBT-S, and at 3 and 12 months follow-up. Primary outcome measure is eating disorder psychopathology, with the hypothesis that patients receiving TBT-S in addition to TAU will show significantly greater reduction in eating disorder psychopathology from TBT-S treatment admission to 3 month follow-up, compared to controls.
Detailed description
Participants in the intervention arm will receive five days of TBT-S in addition to treatment as usual. TBT-S is administered to three to six adult anorexia nervosa patients with up to four supports per patient. The treatment structure consists of five consecutive days of treatment, up to 7,5 hours each day. Staff requirements for TBT-S are three clinicians, one dietician and one medical staff. Adults referred to a local psychiatric centre (DPS) for out-patient anorexia nervosa treatment, and their supports, will be eligible to participate in the study.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Temperament Based Therapy with Support (TBT-S) | Experimental | Behavioral: Temperament Based Therapy with Support (TBT-S)TBT-S in addition to treatment as usual |
| Treatment as Usual (TAU) | No intervention | –Treatment as Usual |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Age ≥18, all genders
- A Diagnostic and Statistical Manual of Mental Disorders (DSM-5) diagnosed anorexia nervosa disorder (F50.0, F50.01, F50.02, also including F50.9 - atypical anorexia nervosa)
- Willingness to have Support(s) participate in treatment
- Medically stable
Key exclusion criteria (3 listed)
- Intellectual developmental disorder or intellectual disability; psychotic disorder or other psychopathology that may affect or prevent participation in the study
- diagnosed alcohol or other substance use disorder within 3 months prior to study initiation
- ongoing inpatient treatment at the time of study enrollment (participants currently in inpatient care must be discharged and engaged in outpatient treatment before participating in the TBT-S week
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 |
|---|---|---|
| Temperament Based Therapy with Support (TBT-S)Also: TBT-SParticipants included in the intervention arm will receive TBT-S (5-day treatment) in addition to treatment as usual (TAU) | Behavioural | Temperament Based Therapy with Support (TBT-S) |
Primary outcome
Eating Disorder Psychopathology
Time frame: Baseline, after 1 week and at 3 and 12 months follow-up
Eating Disorders Examination Questionnaire (EDE-Q). Participants report symptomatology on a 7-point Likert scale from 0 (no days) to 6 (everyday). The EDE-Q contains 4 subscales: Restraint, Weight Concern, Eating Concern, and Shape Concern. Subscale scores are calculated by finding the averages of the subscale items. A global score is also calculated by averaging the subscale scores. Scores range from 0 to 6; higher scores indicate higher levels of eating disorder pathology.
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 2 Mar 2026.
- Individual participant dataSharing planned: No. There are no plans to make individual participant data (IPD) available to other researchers.
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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.
Oslo University Hospital, Regional Department for Eating Disorders
Oslo, Norway
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Temperament Based Therapy with Support (TBT-S) in people with Anorexia Nervosa, run by Oslo University Hospital at 1 site in Norway.
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 4 inclusion and 3 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 2 Mar 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 Norway. 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?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Eating Disorder Psychopathology (time frame: Baseline, after 1 week and at 3 and 12 months follow-up). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 2 Mar 2026; AzTrials last refreshed its copy on 6 Nov 2026.