Anorexia Nervosa, AtypicalNCT07159867
Frequency of Hypermobility-Related Problems in Patients With Anorexia Nervosa
An observational study of Anorexia Nervosa, Atypical and Anorexia Nervosa, run by Vastra Gotaland Region at 1 site in Sweden.
Trial summary
The purpose of this study is to examine the frequense of generalized hypermobility and pain in patients with Anorexia Nervosa. The study further explores two main questions: (1) whether generalized hypermobility may be an explanatory factor for pain in some patients with Anorexia Nervosa, and (2) whether… Read more about this study
- Who is it for?
- Ages 13 to 25 years, women only
- Conditions the study is for
- Anorexia Nervosa, Atypical, Anorexia Nervosa
- How many people
- 100 participants
- Where
- 1 siteSweden
- Study dates
- 15 Sep 2025to 30 Dec 2026
- Phase
- Observational
- 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 13 to 25 years
- Women only
- No healthy volunteers
- Child, Adult
Study population: Patients at the Eating Disorders Center for Children and Young Adults in Gothenburg.
Who may be able to join
- Female patients Aged 13-25 years
- Diagnosed with:
- Anorexia Nervosa (ICD-10 F50.0), or
- Atypical Anorexia Nervosa (ICD-10 F50.1)
- Currently receiving treatment or scheduled to receive treatment
Who cannot join
- Severe cognitive impairment
- Insufficient Swedish language skills that make it impossible to provide informed consent and prevent answering study questions
- Pregnancy and up to one year postpartum
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Sweden1 site
Queen Silvias Children´s Hospital
Gothenburg, Västra Götaland County, 416 50
About this study
The purpose of this study is to examine the frequense of generalized hypermobility and pain in patients with Anorexia Nervosa. The study further explores two main questions: (1) whether generalized hypermobility may be an explanatory factor for pain in some patients with Anorexia Nervosa, and (2) whether temporomandibular joint problems (such as instability, pain, difficulties opening the mouth, locking, or clicking) contribute to eating difficulties in certain individuals with Anorexia Nervosa.
Read the detailed description
Patients with eating disorder diagnosis Anorexia Nervosa, who are either currently in treatment or awaiting treatment at the Eating Disorders Center for children and young adults in Gothenburg, will be invited to participate in the study. During a single examination session, the patient's joints will be assessed to determine whether generalized hypermobility is present. At the same visit, the patient will answer questions regarding possible bodily pain and any temporomandibular joint problems. Joint mobility will be examined and assessed by a physiotherapist at the clinic. The examination follows a standardized protocol for assessing joint mobility and includes the assessment of nine specified joints.
- Conditions
- Anorexia Nervosa, Atypical, Anorexia Nervosa
- Keywords
- Anorexia nervosa, Joint hypermobility, Pain, Temporomandibular joint
- Medical subject headings
- Anorexia Nervosa, Joint Instability, Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Female patients diagnosed with Anorexia Nervosa or Atypical Anorexia Nervosa, aged 13-25 years. | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Joint hypermobility
Joint mobility will be assessed according to the Beighton score using a goniometer.
Measured: One-time assessment at baseline (Day 0, at the inclusion visit).
5-part questionnaire
Participants over the age of 18 will also complete the 5-part questionnaire regarding historical hypermobility.
Measured: One-time questionnaire at baseline (Day 0, after clinical examination).
Secondary outcomes (3)
Joint pain
The Numeric Rating Scale (NRS) is a self-assessment tool used to describe the patient's perceived pain intensity. The patient marks the intensity on a line with eleven points, ranging from 0 to 10. The endpoints represent 0 = 'no pain' and 10 = 'worst imaginable pain.'
Measured: One-time questionnaire at baseline (Day 0, after clinical examination).
Temporomandibular joint problems
Screening questions regarding temporomandibular joint problems. The short version of the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) classification system will be used.
Measured: One-time questionnaire at baseline (Day 0, after clinical examination).
Pain drawing
Participant marks areas of perceived pain on a schematic human body figure.
Measured: One-time questionnaire at baseline (Day 0, after clinical examination).
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Sep 2025
- Study start15 Sep 2025
- Primary completion30 Dec 2026 (estimated)
- Study completion30 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Anorexia Nervosa, AtypicalStudies of the same condition, open and under way.
- More trials run by Vastra Gotaland RegionThe 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
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Vastra Gotaland Region
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Elke Schubert Hjalmarsson, Vastra Gotaland Region
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07159867
- Sponsor's protocol ID
- 2023-00568-01
- Other IDs
- 2023
- Status last verified
- Aug 2025
- First submitted
- 21 Aug 2025
- Last updated
- 25 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 25 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Frequency of Hypermobility-Related Problems in Patients With Anorexia Nervosa
- ClinicalTrials.gov ID
- NCT07159867
- Acronym / sponsor ID
- 2023-00568-01
- Conditions
- Anorexia Nervosa, Atypical, Anorexia Nervosa
- Keywords
- Anorexia nervosa, Joint hypermobility, Pain, Temporomandibular joint
- Study type
- Observational
- Recruitment status
- Enrolling by invitation
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Vastra Gotaland RegionOther government
- Study start
- 15 Sep 2025 (actual)
- Primary completion
- 30 Dec 2026 (estimated)
- Study completion
- 30 Dec 2026 (estimated)
- First posted
- 8 Sep 2025 (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 purpose of this study is to examine the frequense of generalized hypermobility and pain in patients with Anorexia Nervosa. The study further explores two main questions: (1) whether generalized hypermobility may be an explanatory factor for pain in some patients with Anorexia Nervosa, and (2) whether temporomandibular joint problems (such as instability, pain, difficulties opening the mouth, locking, or clicking) contribute to eating difficulties in certain individuals with Anorexia Nervosa.
Detailed description
Patients with eating disorder diagnosis Anorexia Nervosa, who are either currently in treatment or awaiting treatment at the Eating Disorders Center for children and young adults in Gothenburg, will be invited to participate in the study. During a single examination session, the patient's joints will be assessed to determine whether generalized hypermobility is present. At the same visit, the patient will answer questions regarding possible bodily pain and any temporomandibular joint problems. Joint mobility will be examined and assessed by a physiotherapist at the clinic. The examination follows a standardized protocol for assessing joint mobility and includes the assessment of nine specified joints.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Female patients diagnosed with Anorexia Nervosa or Atypical Anorexia Nervosa, aged 13-25 years. | – | – |
Who may qualify
- Ages
- 13 to 25 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
- Study population
- Patients at the Eating Disorders Center for Children and Young Adults in Gothenburg.
Key inclusion criteria (5 listed)
- Female patients Aged 13-25 years
- Anorexia Nervosa (ICD-10 F50.0), or
- Atypical Anorexia Nervosa (ICD-10 F50.1)
- Currently receiving treatment or scheduled to receive treatment
Key exclusion criteria (3 listed)
- Severe cognitive impairment
- Insufficient Swedish language skills that make it impossible to provide informed consent and prevent answering study questions
- Pregnancy and up to one year postpartum
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Joint hypermobility
Time frame: One-time assessment at baseline (Day 0, at the inclusion visit).
Joint mobility will be assessed according to the Beighton score using a goniometer.
5-part questionnaire
Time frame: One-time questionnaire at baseline (Day 0, after clinical examination).
Participants over the age of 18 will also complete the 5-part questionnaire regarding historical hypermobility.
3 secondary outcomes
Joint pain
Time frame: One-time questionnaire at baseline (Day 0, after clinical examination).
Temporomandibular joint problems
Time frame: One-time questionnaire at baseline (Day 0, after clinical examination).
Pain drawing
Time frame: One-time questionnaire at baseline (Day 0, after clinical examination).
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 25 Aug 2026.
- Individual participant dataSharing planned: No
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Anorexia Nervosa, Atypical and Anorexia Nervosa, run by Vastra Gotaland Region at 1 site in Sweden.
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 5 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: enrolling by invitation, as of the sponsor's last update on 25 Aug 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 Sweden. 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?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Joint hypermobility (time frame: One-time assessment at baseline (Day 0, at the inclusion visit).). The study lists 2 primary outcomes in all. 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 25 Aug 2026.