Anorexia NervosaRHI_size_ANNCT06296329
Rubber Hand Illusion in Anorexia Nervosa
An observational study of Anorexia Nervosa, run by Istituto Auxologico Italiano at 1 site in Italy.
Trial summary
The present research project aims to verify a possible difference in the recalibration of the real hand position (i.e. proprioceptive drift) in relation to the dimensions of the plastic hand in the Rubber Hand Illusion, among a group of female participants with anorexia nervosa compared with a normal weight control… Read more about this study
- Who is it for?
- Ages 20 to 50 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Anorexia Nervosa
- What is being tested?
- Rubber Hand Illusion
- How many people
- 28 participants
- Where
- 1 siteItaly
- Study dates
- 1 Apr 2023to 30 Mar 2024
- Phase
- Observational
- Are there results?
- None posted in the registry
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 20 to 50 years
- Women only
- Healthy volunteers accepted
- Adult
Study population: Participants with anorexia nervosa will be recruited at the beginning of a rehabilitative treatment at the Istituto Auxologico Italiano, IRCCS, San Giuseppe Hospital (Italy). Controls will be recruited out of the hospital.
Who may be able to join
- Right-handed
- diagnosis of Anorexia Nervosa according to the APA criteria
Who cannot join
- concurrent neurological, neurodevelopmental (e.g., autism), motor, somatosensory and/or psychiatric disorders.
Trial locations and contacts
1 site in 1 country.
Italy1 site
IRCCS Istituto Auxologico Italiano - Ospedale San Giuseppe
Piancavallo, VCO, 28824
About this study
Official title: Rubber Hand Illusion in Anorexia Nervosa: the Role of Hand Dimensions and Physical Appearance
The present research project aims to verify a possible difference in the recalibration of the real hand position (i.e. proprioceptive drift) in relation to the dimensions of the plastic hand in the Rubber Hand Illusion, among a group of female participants with anorexia nervosa compared with a normal weight control group.
- Conditions
- Anorexia Nervosa
- Being tested
- Rubber Hand Illusion
- Keywords
- bodily illusion, body representation
- Medical subject headings
- Anorexia Nervosa
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Rubber Hand IllusionOther
The traditional behavioural illusion of the Rubber Hand will be applied
| Study group | Role | What they receive |
|---|---|---|
| Cases | Participants with Anorexia Nervosa Receives: Other: Rubber Hand Illusion | |
| Controls | Not-hospitalized participants with a healthy weight Receives: Other: Rubber Hand Illusion |
What is being measured
The primary outcome is the main question the study is designed to answer.
Proprioceptive drift in centimeters
the recalibration of the real hand position towards the rubber hand
Measured: baseline
Secondary outcomes (1)
Score at the Embodiment questionnaires
the score relative to the questionnaire measuring the individual experience towards the illusion. The higher is the score, the higher is the sense of illusion explicitely reported by participants.
Measured: Baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Mar 2024
- Study start1 Apr 2023
- Primary completion30 Mar 2024
- Study completion30 Mar 2024
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 Istituto Auxologico ItalianoThe 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
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 28 participants (actual)
Sponsor and investigators
- Lead sponsor
- Istituto Auxologico Italiano
- Sponsor type
- University, hospital or other
- Collaborators
- University of Turin, Italy
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06296329
- Sponsor's protocol ID
- 21C309
- Acronym
- RHI_size_AN
- Status last verified
- Aug 2025
- First submitted
- 28 Feb 2024
- Last updated
- 27 Aug 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Rubber Hand Illusion in Anorexia Nervosa: the Role of Hand Dimensions and Physical Appearance
- ClinicalTrials.gov ID
- NCT06296329
- Acronym / sponsor ID
- RHI_size_AN / 21C309
- Conditions
- Anorexia Nervosa
- Keywords
- bodily illusion, body representation
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 28 participants (actual)
- Lead sponsor
- Istituto Auxologico ItalianoUniversity, hospital or other
- Collaborators
- University of Turin, Italy
- Study start
- 1 Apr 2023 (actual)
- Primary completion
- 30 Mar 2024 (actual)
- Study completion
- 30 Mar 2024 (actual)
- First posted
- 6 Mar 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 present research project aims to verify a possible difference in the recalibration of the real hand position (i.e. proprioceptive drift) in relation to the dimensions of the plastic hand in the Rubber Hand Illusion, among a group of female participants with anorexia nervosa compared with a normal weight control group.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Cases | – | Other: Rubber Hand IllusionParticipants with Anorexia Nervosa |
| Controls | – | Other: Rubber Hand IllusionNot-hospitalized participants with a healthy weight |
Who may qualify
- Ages
- 20 to 50 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Participants with anorexia nervosa will be recruited at the beginning of a rehabilitative treatment at the Istituto Auxologico Italiano, IRCCS, San Giuseppe Hospital (Italy). Controls will be recruited out of the hospital.
Key inclusion criteria (2 listed)
- Right-handed
- diagnosis of Anorexia Nervosa according to the APA criteria
Key exclusion criteria (1 listed)
- concurrent neurological, neurodevelopmental (e.g., autism), motor, somatosensory and/or psychiatric disorders.
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 |
|---|---|---|
| Rubber Hand IllusionThe traditional behavioural illusion of the Rubber Hand will be applied | Other | Cases, Controls |
Primary outcome
Proprioceptive drift in centimeters
Time frame: baseline
the recalibration of the real hand position towards the rubber hand
1 secondary outcome
Score at the Embodiment questionnaires
Time frame: Baseline
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Aug 2025.
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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. This study is not recruiting at the moment.
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, run by Istituto Auxologico Italiano at 1 site in Italy.
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 2 inclusion and 1 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: finished, as of the sponsor's last update on 27 Aug 2025. 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 Italy. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Proprioceptive drift in centimeters (time frame: baseline). 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 27 Aug 2025.