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Effects of risperidone on glucose metabolism and gut microbiota in healthy adults: an open-label, pilot, randomized controlled trial

Effects of risperidone on glucose metabolism and gut microbiota in healthy adults: an open-label, pilot, randomized controlled trial

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs041210165
Enrollment
24
Registered
2022-03-22
Start date
2022-07-07
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Healthy adults

Interventions

Risperidone 0.5 mg, per oral, once per day, before bedtime, for 4 days

Sponsors

Oshima Megumi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: The study includes those who meet all of the following criteria. 1) Men and women between the ages of 20 and 65 2) No history of psychiatric or neurological disorders 3) Fasting blood glucose level less than 140 mg/dL 4) HOMA-IR (homeostasis model assessment-insulin resistance) 1.6 or higher 5) Estimated GFR 60 ml/min/1.73 m2 or higher 6) AST and ALT less than 30 IU/L 7) No history of arrhythmia or congenital QT prolongation syndrome 8) No history of active cancer (disease-free for 5 years or less) 9) Have a bowel movement at least once every 4 days (regardless of whether or not laxatives are used) 10) The patient's written consent has been obtained after sufficient informed consent for participation in the study

Exclusion criteria

Exclusion criteria: Illnesses under treatment History of hypersensitivity to any of the ingredients of risperidone or paliperidone Pregnant or lactating mothers Participation in other clinical studies within 3 months prior to the start of administration of the study drug Not appropriate as participants Working at the same or related departments as the principal investigator

Design outcomes

Primary

MeasureTime frame
Change in HOMA-IR from baseline to day 5

Secondary

MeasureTime frame
1) Changes in the variables from baseline to day 5; blood glucose, insulin, HbA1c, c-peptide, blood pressure, BMI, eGFR, Urinary albumin-creatinine ratio, amino acids, 16S rRNA 2) Adverse events

Contacts

Public ContactMegumi Oshima

Kanazawa University Hospital

moshima@staff-kanazawa.u.ac.jp+81-76-265-2499

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026