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Impact of Closely Grouped, Iterative Exposures to Suxamethonium During ECT on the Sensitization to NMBA and the Development of Protective Antibodies

NCT05210062 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 70

Last updated 2022-04-12

No results posted yet for this study

Summary

Acute per-anesthetic hypersensitivity reaction (HSA-PA) is a rapidly occurring systemic reaction following injection of a drug during anesthesia (mortality between 3 and 9%). The substances responsible for these reactions in France are Neuro-Muscular Blocking Agents (NMBA) in 60% of cases. The main mechanism mentioned is an immediate systemic hypersensitivity immune reaction (anaphylaxis). The mechanism of immunization to NMBA is not yet understood.

Electroconvulsive therapy (ECT) is a long-standing therapeutic approach still widely used today, for its high efficiency, particularly in depressive syndromes resistant to antidepressants. It has an efficacy comparable (or even superior) to pharmacological treatments and improves the mortality associated with this disease. Treatment with iterative ECT sessions includes an attack phase with an average of 12 sessions over 4 weeks, with secondary spacing of sessions before switching to antidepressant treatment. These sessions are carried out in the operating room under general anesthesia, thanks to a hypnotic and a NMBA, suxamethonium, as recently recommended by the French Anesthesiology Society in 2020.

ECT therefore represent an interesting model of iterative exposure of a relatively homogeneous population to a single highly sensitizing substance, which could make it possible to study the evolution of sensitization as a function of various factors, in particular cumulative exposure, for which no data is currently available.

Conditions

Interventions

OTHER

Iterative exposure to suxamethonium during ECT sessions

The study is divided into 2 phases: phase P and phase E. Phase P: 10 patients to be included in 1 month with a unique dose of suxamethonium during one session of ECT. One blood sample will be taken from patients before their index ECT session. The objective is to evaluate the feasibility of antibody detection relative to the main objective of the study, to ensure the number of patients to include in phase E (analysis in the following month). Depending on the frequency of antibodies detected, particularly IgG4, the number of patients required for phase E will be revised. If no antibodies are detected, the study will be discontinued. Phase E: 60 patients to be included in 12 months with 5 blood samples: before the first session of ECT (S0), at 2 weeks (S2), at 4 weeks (S4), between 6 - 14 weeks (preferably at S10) and at 6 months (M6). Only first-time patients or those not having been exposed to ECT in the past 10 years will be included in this phase.

Sponsors & Collaborators

  • Assistance Publique - Hôpitaux de Paris

    lead OTHER

Principal Investigators

  • Aurélie Gouel · APHP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-01-27
Primary Completion
2023-09-30
Completion
2023-09-30

Countries

  • France

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05210062 on ClinicalTrials.gov