Treatment with acetylcholine esterase inhibitors in anorexia nervosa : a multicenter double-blind randomised controlled trial versus placebo

2024-511681-37-00 Protocol D22-P020 Therapeutic exploratory (Phase II) Ongoing, recruiting

Start 2 Jul 2025 · Status Ongoing, recruiting · 1 EU/EEA countries · 3 sites · Protocol D22-P020

Overview

Sponsor-declared trial summary

Phase Therapeutic exploratory (Phase II)
Status Ongoing, recruiting
Participants planned 147
Countries 1
Sites 3

Anorexia nervosa

Evaluate the effect, compared with placebo, of oral administration of donepezil (an acetylcholinesterase inhibitor) on improvement in the symptomatology of anorexia nervosa.

Key facts

Sponsor
Centre Hospitalier Sainte Anne Paris
Participant type
Patients
Age range
18-64 years
Gender
Female
Therapeutic area
Psychiatry and Psychology [F] - Mental Disorders [F03]
Trial duration
2 Jul 2025 → ongoing
Decision date (initial)
2024-06-14
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No
Funding sources
DGOS

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Efficacy

Evaluate the effect, compared with placebo, of oral administration of donepezil (an acetylcholinesterase inhibitor) on improvement in the symptomatology of anorexia nervosa.

Secondary objectives 3

  1. evaluate the effect, compared with placebo, of the administration of acetylcholine esterase inhibitor on weight gain in adult women suffering from anorexia nervosa.
  2. evaluate the effect, compared with placebo, of the administration of an acetylcholine esterase inhibitor on habit-forming learning in adult women with AM
  3. Evaluate the effect of acetylcholine esterase inhibitor administration on the balance between goal-directed behaviours and habits in adult women with MA

Conditions and MedDRA coding

Anorexia nervosa

Study design 1 period

#TitleAllocationBlindingRoles blindedArms
1 Donepezil (5 mg and 2,5 mg) / Placebo
This is a prospective, comparative, randomized, superiority, double-blind against placebo in 3 parallel groups, national, multi-center study
Randomised Controlled Double [{"id":171971,"code":2,"name":"Investigator"},{"id":171972,"code":3,"name":"Monitor"},{"id":171973,"code":1,"name":"Subject"}]

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 6

  1. female
  2. Presence of 3 DSM V criteria for anorexia nervosa
  3. Restrictive subtype of anorexia nervosa
  4. Body Mass Index between 14 and 18.5 kg/m2
  5. Aged between 18 and 65
  6. Resting heart rate greater than or equal to 40 bpm

Exclusion criteria 10

  1. Past diagnosis of anorexia nervosa in the form of hyperphagia/purgation
  2. Past diagnosis of bulimia nervosa
  3. Past diagnosis of binge eating disorder
  4. Comorbid diagnosis of psychotic disorder and/or bipolar disorder
  5. Renal impairment (glomerular filtration rate less than 60 mL/min according to the MDRD formula)
  6. Liver failure or transaminase elevation greater than 5N
  7. Electrocardiogram of conduction disorder
  8. Taking a psychotropic drug now or in the three weeks prior to inclusion (including antidepressants, to avoid interaction/potentiation in this population)
  9. Taking a treatment involving the following cytochromes : P450, P3A4, P2D6
  10. Pregnant or breast-feeding women

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Absolute intra-individual difference in the total EDE-Q score obtained between inclusion D0 and D90, i.e. (EDE-Qd90 - EDE-Qd0)

Secondary endpoints 10

  1. Intra-individual difference in body mass index between inclusion D0 and D90, and between D0 and D180
  2. Difference in intra-individual response rates (rate of responses) in the devalued condition of phase 3 "slip of action" of the HABITS neurocognitive test between D0 and D90.
  3. Intra-individual difference in Self-Report Habit Index (SRHI) scores at D0 and D90 (Davis et al IJED 2020).
  4. Intra-individual difference between scores at D0 and D90 in the Wisconsin Card Sorting Test (WSCT), Trail Making Test B-A and Brixton test.
  5. Intra-individual difference in Yale-Brown Obsessive Compulsive Scale (Y-BOCS) scores at D0 and D90
  6. Evolution of EDE-Q and EDI-3 sub-dimensions scores between inclusion D0 and D90
  7. Intra-individual difference in Hospital Anxiety and Depression Scale (HADS) scores between D0 and D90
  8. Evolution of the total EDE-Q score between inclusion D0, D90 and D180.
  9. Occurrence of adverse events measured according to a standard CTCAE, number of treatment discontinuations due to poor tolerance and changes in biological profile (elevation of transaminases, decrease in PT, prolongation of APTT, increase in CPK, and a disturbance in the blood count formula) performed at D3, D5, D30 and D90
  10. Collection and storage of plasma and faeces at D1 and D90

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 4

ARICEPT 5 mg, comprimé pelliculé

PRD3428568 · Product

Active substance
Donepezil Hydrochloride
Substance synonyms
2-[(1-BENZYL-4-PIPERIDYL)METHYL]-5,6-DIMETHOXY-2,3-DIHYDROINDEN-1-ONE HYDROCHLORIDE
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL
Max daily dose
5 mg milligram(s)
Max total dose
450 mg milligram(s)
Max treatment duration
3 Month(s)
Authorisation status
Authorised
ATC code
N06DA02 — DONEPEZIL
Marketing authorisation
NL22634
MA holder
EISAI S.A.S.
MA country
France
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
therapeutic indication

DONEPEZIL ARROW 5 mg, comprimé pelliculé

PRD6228024 · Product

Active substance
Donepezil Hydrochloride
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL
Max daily dose
5 mg milligram(s)
Max total dose
450 mg milligram(s)
Max treatment duration
3 Month(s)
Authorisation status
Authorised
ATC code
N06DA02 — DONEPEZIL
Marketing authorisation
64813949
MA holder
ARROW GENERIQUES
MA country
France
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
therapeutic indication

Donepezil Hydrochloride

PRD11212416 · Product

Active substance
Donepezil Hydrochloride
Substance synonyms
2-[(1-BENZYL-4-PIPERIDYL)METHYL]-5,6-DIMETHOXY-2,3-DIHYDROINDEN-1-ONE HYDROCHLORIDE
Pharmaceutical form
CAPSULE
Route of administration
ORAL
Max daily dose
2.5 mg milligram(s)
Max total dose
225 mg milligram(s)
Max treatment duration
3 Month(s)
Authorisation status
Not Authorised
ATC code
N06DA02 — DONEPEZIL
MA holder
GROUPE HOSPITALIER UNIVERSITAIRE PARIS PSYCHIATRIE & NEUROSCIENCE
Paediatric formulation
No
Orphan designation
No

DONEPEZIL BIOGARAN 5 mg, comprimé pelliculé

PRD546877 · Product

Active substance
Donepezil Hydrochloride Monohydrate
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL
Max daily dose
5 mg milligram(s)
Max total dose
450 mg milligram(s)
Max treatment duration
3 Month(s)
Authorisation status
Authorised
ATC code
N06DA02 — DONEPEZIL
Marketing authorisation
3400921659696
MA holder
BIOGARAN
MA country
France
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
therapeutic indication

Placebo 1

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Centre Hospitalier Sainte Anne Paris

Sponsor organisation
Centre Hospitalier Sainte Anne Paris
Address
1 Rue Cabanis
City
Paris
Postcode
75014
Country
France

Scientific contact point

Organisation
Centre Hospitalier Sainte Anne Paris
Contact name
Khaoussou SYLLA

Public contact point

Organisation
Centre Hospitalier Sainte Anne Paris
Contact name
Khaoussou SYLLA

Locations

1 EU/EEA country · 3 investigational sites

By country

CountryMS statusPlanned subjectsSites
France Ongoing, recruiting 147 3
Rest of world 0

Investigational sites

France

3 sites · Ongoing, recruiting
GHU St Anne Psychiatrie et Neurosciences
Psychiatrie, 1 rue Cabanis, 75014, Paris
CHU de Montpellier
Psychiatrie, 371 avenue du doyen Gaston Giraud, 34295, Montpellier Cedex 05
Hopital Paul Brousse
Psychiatrie, 12 Avenue Paul Vaillant Couturier, 94804, Villejuif Cedex

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
France 2025-07-02 2025-07-02

Oversight and notifications

Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77

Serious breaches 1 · Art. 52 CTR

Serious breach SB-93682

Sponsor became aware
2025-07-30
Date of breach
2025-07-02
Submission date
2025-08-07
Member states concerned
France
Categories
Regulation
Areas impacted
Regulatory
Benefit-risk balance changed
No
Description
A patient was enrolled in the clinical trial before the Certificates of Analysis of the investigational medicinal product batches had been submitted to ANSM, despite this being a specific condition of the initial authorisation.

The breach resulted from a human error : the sponsor addressed the CPP's request but unintentionally failed to process the ANSM’s conditional requirement. Additionally, the Certificates of Analysis were not yet available at the time of the patient’s inclusion. They were requested immediately upon realisation of the breach and have since been submitted as part of a substantial modification application.

The investigational medicinal product administered to the patient complies with GMP standards and quality specifications. The patient is currently being followed as per the clinical trial protocol, with no serious adverse events reported to date.
Sponsor actions
The investigational site was informed immediately after the breach was identified (30/07/2025). All further inclusions were temporarily suspended pending clarification with ANSM.

The ANSM was notified by email (30/07/2025).

The Certificates of Analysis were requested and submitted as part of a substantial modification application (31/07/2025).

A "serious breach" was reported in CTIS in accordance with Article 52 of EU Regulation 536/2014 (07/08/2025).

Update of internal procedures to reinforce the requirement to check for pending regulatory conditions before patient inclusion.

Implementation of a mandatory doublecheck validation step within the study startup checklist, specifically to verify that all conditions from both ANSM and CPP have been fulfilled.
OrganisationCityCountryType
GHU St Anne Psychiatrie et Neurosciences Paris France Sponsor (non commercial)

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 21 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) 2024-511681-37-00_Protocole for publication_ANACh 2
Protocol (for publication) 2024-511681-37-00_Protocole_ANACh_clean 3
Protocol (for publication) 2024-511681-37-00_Protocole_ANACh_suivi modif 3
Protocol (for publication) Outil_echelle_had 1
Protocol (for publication) Questionnaire_C-SSRS 1
Protocol (for publication) Questionnaire_EDE-Q 1
Protocol (for publication) Questionnaire_EDI3 2
Protocol (for publication) Questionnaire_SRHI 1
Recruitment arrangements (for publication) 2024-511681-37-00_Patient recruitment procedure_ANACh 1
Subject information and informed consent form (for publication) 2024-511681-37-00_Carte Participant_ANACh 1
Subject information and informed consent form (for publication) 2024-511681-37-00_NIFC pre inclusion_ANACh 2
Subject information and informed consent form (for publication) 2024-511681-37-00_NIFC pre inclusion_ANACh_Suivi modif 2
Subject information and informed consent form (for publication) 2024-511681-37-00_NIFC suivi de grossesse_ANACh 2
Subject information and informed consent form (for publication) 2024-511681-37-00_NIFC_ANACh 2
Subject information and informed consent form (for publication) 2024-511681-37-00_NIFC_ANACh_suivi modif 2
Summary of Product Characteristics (SmPC) (for publication) 2024-511681-37-00_RCP Aricept 5mg_ANACh 1
Summary of Product Characteristics (SmPC) (for publication) 2024-511681-37-00_RCP Donepezil 5mg Arrow_ANACh 1
Summary of Product Characteristics (SmPC) (for publication) 2024-511681-37-00_RCP Donepezil 5mg Biogaran_ANACh 1
Synopsis of the protocol (for publication) 2024-511681-37-00_Resume protocole_ANACh 1
Synopsis of the protocol (for publication) 2024-511681-37-00_Resume protocole_ANACh_Clean 3
Synopsis of the protocol (for publication) 2024-511681-37-00_Resume protocole_ANACh_suivi modif 3

Application history

4 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-03-11 France Acceptable with conditions
2024-06-13
2024-06-14
2 SUBSTANTIAL MODIFICATION SM-2 2025-01-17 France Acceptable
2025-04-09
2025-04-11
3 SUBSTANTIAL MODIFICATION SM-3 2025-07-31 France Acceptable
2025-08-22
2025-08-27
4 SUBSTANTIAL MODIFICATION SM-4 2025-12-09 France Acceptable
2026-03-24
2026-03-27