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Long-term Impact of NMDAR Encephalitis, Level 3

Social and Psychological Long-term Impact of NMDA Receptor Encephalitis, Level 3

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07158229
Acronym
SAPIENCE 3
Enrollment
30
Registered
2025-09-05
Start date
2025-11-21
Completion date
2026-11-21
Last updated
2026-02-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

NMDAR Autoimmune Encephalitis

Keywords

NMDAR encephalitis, psychosocial impact

Brief summary

NMDA receptor antibody encephalitis is a rare autoimmune neurological disease of the central nervous system with an estimated incidence of 1.5 people per million per year. Patients with anti-NMDAR encephalitis experience an acute phase of the disease characterized by psychosis, memory loss, seizures, autonomic nervous system instability, or coma. Since the discovery of this disease 14 years ago by Prof. Dalmau, the clinical presentation of the acute phase has been well characterized, while the psychosocial impact of the disease remains largely unexplored. Currently, there are few cohort studies of patients that have identified persistent cognitive impairment as a factor impacting remission after the acute phase. Given the scarcity of information concerning the post-acute phase, it is therefore essential to determine the long-term social and psychological outcomes and their daily effects on the social and functional life of this severe disease. This is especially important as the patients are young, with a median age of 21 years, and may face lasting limitations potentially detrimental to their success in professional, educational, or social environments.

Interventions

OTHERQuestionnaires

Complete quality of life questionnaires focusing on fatigue, anxiety, depression, and sleep.

Sponsors

Hospices Civils de Lyon
Lead SponsorOTHER
Charite University, Berlin, Germany
CollaboratorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with NMDAR encephalitis * Age ≥ 18 years old * Patient affiliated to a social security system * No opposition from the patient * Access to an internet connection and a computer

Exclusion criteria

* Patients whithout NMDAR encephalitis * Patient under guardianship or curatorship * Patient with neurological disorders pre-existing encephalitis

Design outcomes

Primary

MeasureTime frameDescription
Analysis of cognitive assessments and psychosocial questionnaires of patients with anti-NMDAR encephalitis after the acute phase of the disease - PREMS questionnaires - AEPREM questionnaireAt inclusionAEPREM questionnaire (stands for "evaluation of experience in healthcare facilities and medical teams" in french)
Analysis of cognitive assessments and psychosocial questionnaires of patients with anti-NMDAR encephalitis after the acute phase of the disease - PREMS questionnaire - AESOCAt inclusionAESOC questionnaire ( stands for "questionnaire on clinical symptoms and perception of the disease" in french)
Analysis of cognitive assessments and psychosocial questionnaires of patients with anti-NMDAR encephalitis after the acute phase of the disease - PROMS questionnaires - FSS questionnaireAt inclusionFSS questionnaire (stands for "fatigue severity scale") assesses fatigue in patients. Questionnaire is composed of 9 items graded on a scale from 1 to 7. Score varies from 9 to 63. The higher the score, the strongest the fatigue.
Analysis of cognitive assessments and psychosocial questionnaires of patients with anti-NMDAR encephalitis after the acute phase of the disease - PROMS questionnaire - GAD7At inclusionGAD7 questionnaire (stands for "Generalized Anxiety Disorder 7") assesses anxiety in patients. Items are rated on a scale of 0 to 3. Score varies from 0 to 21. The recommended threshold for estimating generalised anxiety is 10. Thresholds: No anxiety: 0-4 points; Mild anxiety: 5-9 points; Moderate anxiety: 10-14 points; Severe anxiety: 15-21 points.
Analysis of cognitive assessments and psychosocial questionnaires of patients with anti-NMDAR encephalitis after the acute phase of the disease - PROMS questionnaire - PHQ9 questionnaireAt inclusionPHQ9 questionnaire (stands for "Patient Health Questionnaire-9") assesses depression in patients. Questionnaire is composed of 9 items each graded from 0 to 3. Score varies from 0 to 27. The higher the score, the more depressed is the patient.
Analysis of cognitive assessments and psychosocial questionnaires of patients with anti-NMDAR encephalitis after the acute phase of the disease - PROMS questionnaire - PSQI questionnaireAt inclusionPSQI questionnaire (stands for "Pittsburgh Sleep Quality Index") assesses sleep in patients. Each component score of the PSQI ranges from 0 to 3, with 3 indicating the greatest dysfunction or disturbance. The seven component scores are then summed to obtain a global PSQI score, which ranges from 0 to 21. Higher scores indicate poorer sleep quality, with a score greater than 5 suggesting significant sleep difficulties
Analysis of cognitive assessments and psychosocial questionnaires of patients with anti-NMDAR encephalitis after the acute phase of the disease - PROMS questionnaire - EQ-5D-5L questionnaireAt inclusionEQ-5D-5L questionnaire (stands for "EuroQol-5-Dimension") assesses quality of life in patients.

Countries

France

Contacts

CONTACTJérôme HONNORAT, Pr
jerome.honnorat@chu-lyon.fr0472357806
CONTACTChloé BUTTARD
ext-chloe.buttard@chu-lyon.fr0426739377

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026