NCT04456868

Brief Summary

Depression is currently the leading cause of disability and suicide death worldwide. Several studies, however, have shown that a significant proportion of patients do not respond to standard antidepressants, especially since their symptomatology is dominated by anhedonia or psychomotor retardation reflecting central dopaminergic dysfunction. In order to improve the efficiency and speed of the antidepressant response, it seems essential to highlight this dopaminergic dysfunction, by defining a P300 wave profile specific to the subtype of depressed patients with anhedonic phenotype to whom personalized treatment targeting dopaminergic transmission could in the future be proposed earlier. The investigators therefore wish to highlight an increase in the latency time of P300 and a modification of motor skills (of the walking cycle and of the movement of the hands), without modification of the dopaminergic transmission measured by PETScan, specific to the sub-type of depressive patients, resistant to at least 2 antidepressants of different classes with an anhedonia score\> 5/14 on the SHAPS scale. The increased latency of P300 could then be used in the future as a predictive biomarker of resistance to conventional antidepressant treatments specific to this population of anhedonic depressed patients

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2020

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 16, 2020

Completed
4 months until next milestone

First Posted

Study publicly available on registry

July 7, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

August 24, 2020

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 10, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 10, 2023

Completed
Last Updated

February 10, 2026

Status Verified

February 1, 2026

Enrollment Period

3 years

First QC Date

March 16, 2020

Last Update Submit

February 5, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Difference between latency of P300 wave during encephalogram

    1 hour after inclusion

Secondary Outcomes (8)

  • Difference in walking speed during an 8 meter-walk test between the group of patients with bipolar drug-resistant depression of the anhedonic type and the other groups of subjects

    2 hours after inclusion

  • Stride length variation during an 8 meter-walk test between the group of patients with bipolar drug-resistant depression of the anhedonic type and the other groups of subjects

    2 hours after inclusion

  • Difference in presynaptic fixation of 18-Fluorodopa during positron emission tomography between the group of patients with drug-resistant bipolar depression of the anhedonic type and the other groups of patients

    4 hours after inclusion

  • Difference in the apathy assessment score performed by the Starkstein Apathy Scale (SAS) between the group of patients with drug-resistant bipolar depression of the anhedonic type and the other groups of subjects

    30 minutes after inclusion

  • Difference in frequency of melancholic characteristics meeting the criteria of DSM-5 between the group of patients with drug-resistant bipolar depression of the anhedonic type and the other groups of subjects

    30 minutes after inclusion

  • +3 more secondary outcomes

Study Arms (4)

Healthy volunteers

ACTIVE COMPARATOR

Healthy volunteers at least 18 years old and without a history of psychiatric or neurological disorders

Behavioral: ElectroencephalogramBehavioral: walking testBehavioral: Quality of life questionnaire

Anhedonic drug-resistant bipolar depression patient

EXPERIMENTAL

Adult patients at least 18 years old with drug-resistant bipolar depression of the anhedonic type

Behavioral: ElectroencephalogramBehavioral: walking testBehavioral: Quality of life questionnaireProcedure: Position emission tomography

Non-anhedonic drug-resistant bipolar depression Pat

ACTIVE COMPARATOR

Adult patients at least 18 years old with drug-resistant bipolar depression of the non-anhedonic type

Behavioral: ElectroencephalogramBehavioral: walking testBehavioral: Quality of life questionnaireProcedure: Position emission tomography

Mild to moderate Parkinson's disease patient

ACTIVE COMPARATOR

Adult patients at least 18 years of age with mild to moderate Parkinson's disease

Behavioral: ElectroencephalogramBehavioral: walking testBehavioral: Quality of life questionnaireProcedure: Position emission tomography

Interventions

Electroencephalogram will be done for P300 wave assessment

Anhedonic drug-resistant bipolar depression patientHealthy volunteersMild to moderate Parkinson's disease patientNon-anhedonic drug-resistant bipolar depression Pat

Starkstein Apathy Scale, DSM-5 criteria, Montgomery-Åsberg Depression Rating Scale, Perseverative Thinking Questionnaire, classification of Hoehn \& Yahr

Anhedonic drug-resistant bipolar depression patientHealthy volunteersMild to moderate Parkinson's disease patientNon-anhedonic drug-resistant bipolar depression Pat

Position emission tomography will be done for

Anhedonic drug-resistant bipolar depression patientMild to moderate Parkinson's disease patientNon-anhedonic drug-resistant bipolar depression Pat
walking testBEHAVIORAL

8-Meter walking test will be done for gait parameter assessment

Anhedonic drug-resistant bipolar depression patientHealthy volunteersMild to moderate Parkinson's disease patientNon-anhedonic drug-resistant bipolar depression Pat

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Healthy volunteers:
  • Person who is ≥ 18 years old and ≤ 70 years old
  • Subject without neurological history
  • Subject without psychiatric history in the semi-structured interview Mini International Neuropsychiatric Interview (MINI).
  • Subject having read and understood the newsletter and signed the consent form
  • Subject affiliated to a social security scheme.
  • Subject capable of understanding spoken and written French.
  • Woman of reproductive age with effective contraception as defined by the WHO, for at least three months or postmenopausal.
  • Patients with drug-resistant bipolar anhedonic depression:
  • Patient whose age is ≥ 18 years and ≤ 70 years.
  • Patient with depression meeting DSM-5 criteria (Appendix 4) evolving in the context of bipolar disorder.
  • Patient with a resistance level greater than or equal to 1 according to the Pacchiarotti classification.
  • Patient with an SHAPS anhedonia score greater than 5/14.
  • Patient with no other psychiatric pathology in the semi-structured interview Mini International Neuropsychiatric Interview (MINI).
  • Patient having a normal neurological examination.
  • +26 more criteria

You may not qualify if:

  • Healthy volunteers:
  • Person with a psychiatric disorder in the semi-structured interview Mini International Neuropsychiatric Interview (MINI) (Annex 9).
  • Person deprived of their liberty by an administrative or judicial decision or person placed under the protection of justice / sub-tutorship or curatorship.
  • Subjects with poor understanding of spoken or written French
  • Existence of a neurological, rheumatological, orthopedic or psychiatric history, presence of a severe progressive pathology which can modify brain activity or gait parameters.
  • Woman of childbearing age not taking effective contraception according to the WHO definition (estrogen-progestogens or intrauterine device or tubal ligation), pregnant (positive urine pregnancy test) or breastfeeding.
  • Taking unauthorized treatment during the study and:
  • Dependence on a substance other than nicotine.
  • Patients with drug-resistant bipolar anhedonic depression:
  • Patient with depression with psychotic characteristics.
  • Patient deprived of liberty by an administrative or judicial decision or person placed under the protection of justice / sub-tutorship or curatorship.
  • Subjects with poor understanding of spoken or written French
  • Patient with SHAPS anhedonia score less than or equal to 5/14 (Annex 2).
  • Patient with a neurological, rheumatological, orthopedic or psychiatric history, presence of a severe progressive pathology which can modify brain activity or gait parameters.
  • Woman of childbearing age not taking effective contraception according to the WHO definition (estrogen-progestogens or intrauterine device or tubal ligation), pregnant (positive urine pregnancy test) or breastfeeding.
  • +23 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Rouen University Hospital

Rouen, France

Location

CHSR du Rouvray

Saint-Étienne-du-Rouvray, France

Location

Study Officials

  • Marie-Laure WELTER, Pr

    University Hospital, Rouen

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 16, 2020

First Posted

July 7, 2020

Study Start

August 24, 2020

Primary Completion

August 10, 2023

Study Completion

August 10, 2023

Last Updated

February 10, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations