Measuring lorazepam blood levels in adults treated for catatonia

Blood Concentration in Lorazepam and Treatment in Adult Catatonia

Observational University Hospital, Lille · NCT04530734

This research will measure lorazepam blood levels in adults with catatonia to see if those levels relate to how well the medication works.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital, Lille Academic / other
Locations1 site (Lille)
Trial IDNCT04530734 on ClinicalTrials.gov

What this trial studies

This is an observational study enrolling adults diagnosed with catatonia per DSM-5 who are treated with lorazepam. Blood samples will be taken to measure lorazepam concentrations while clinical dosing and symptom response are recorded. No experimental interventions are given; treatment follows usual clinical care and researchers correlate blood levels with remission and side effects. The goal is to describe relationships between dose, blood concentration, and clinical outcome.

Who should consider this trial

Good fit: Adults (18+) diagnosed with catatonia according to DSM-5 who are receiving lorazepam and willing to provide blood samples are ideal candidates.

Not a fit: People under 18, pregnant patients, those not treated with lorazepam, or individuals unwilling to participate are unlikely to receive benefit from this project.

Why it matters

Potential benefit: If successful, findings could help clinicians personalize lorazepam dosing to improve remission rates and reduce side effects in catatonia.

How similar studies have performed: While lorazepam is a well-established effective treatment for catatonia, using measured blood concentrations to guide dosing is relatively untested and mostly unexplored.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* catatonia according DSM-5

Exclusion Criteria:

* Subject is less than 18 years of age
* Subject is pregnant at the time of the study
* Subject/legal guardian unwilling to participate in the study

Where this trial is running

Lille

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Catatonia
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.