Acetazolamide for Treatment Resistant Schizophrenia

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18-55
SponsorVishwajit Nimgaonkar, MD PhD

About this trial

This is a double blind adjunctive randomized controlled trial for schizophrenia using acetazolamide.

Eligibility criteria

Qualifiers

Written informed consent.

Both genders, ages 18-55 years (older patients may not tolerate high ACZ dose).

PANSS total score > 60 and Score > 4 on one or more items of the 'positive' syndrome items (P1-P7), following treatment at therapeutic doses for 6 weeks with different APDs on 2 occasions.

Stable dose of antipsychotic drug (APD) for > 1 month, continued throughout the study.

Disqualifiers

Substance abuse in the past month/dependence past 6 months with the exception of methadone prescribed for opiate withdrawal.

History or current medical/neurological illnesses that may lead to unstable course, e.g., epilepsy.

Pregnancy.

Acetazolamide (ACZ) contraindications: hypersensitivity to ACZ; history of renal hyperchloremic acidosis; Addison's disease/adrenal failure; chronic closed angle-closure glaucoma.

Trial design

Treatments tested in this trial

  • Acetazolamide
  • Placebo

Treatment groups

60 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Vishwajit Nimgaonkar, MD PhD

Lead sponsor

University of Pittsburgh

Sponsor institution

Stanley Medical Research Institute

Collaborator