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Comparison of the effect of metformin and topiramate on clinical weight loss in bipolar patients under treatment with sodium valproate

Comparison of the effect of metformin and topiramate on clinical weight loss in bipolar patients under treatment with sodium valproate

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
IRCT
Registry ID
IRCT20220206053958N5
Enrollment
70
Registered
2026-03-16
Start date
2026-04-21
Completion date
Unknown
Last updated
2026-06-01

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

Conditions

Bipolar disorder. Bipolar disorder

Interventions

Intervention 1: Intervention group: Group 1: Metformin Group receive metformin starting at a dose of 500 mg per day, titrated gradually up to a maximum dose of 1500 mg per day over two weeks. Interve

Sponsors

Karaj University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to No maximum

Inclusion criteria

Inclusion criteria: age above 20 . diagnosis of bipolar disorder based on the statistical diagnostic manual of mental disorders , 5th edition ( DSM- 5 ) criteria . body mass index is more than 27 kg / m2 and waist circumference more than 90 cm in men and 80 cm in women . non - diabetic state and normal blood pressure . fixed record of current drug usage ( sodium valproate ) for at least 6 months . lack of record of weight loss over 5 % in 3 months before hiring

Exclusion criteria

Exclusion criteria: any significant side-effects of metformin and Topiramate exposure to the acute phase of the disease . new involvement in drug related disorders no compliance with drug engaging in a particular diet or special exerciseprogram to reduce weight . new medical disease new use of other drugs such as weight loss or drugs with metformin or Topiramate .

Design outcomes

Primary

MeasureTime frame
Change in body weight (in kg). Timepoint: in the week 4 , 8 and 12. Method of measurement: Data for weights will first be recorded in pre-prepared data sheets (case report forms) and then entered into an Excel file. Statistical analysis will be performed using SPSS version 26. The 3-month (approximately 12-week) duration for weight response follow-up is supported by robust scientific evidence, as clinical trials have demonstrated that measurable effects of metformin and topiramate on weight and related indices are observable within this timeframe.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMohsen Heydari Mokarar

Karaj University of Medical Sciences

ps.heydari@gmail.com+98 26 3622 0118

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Jun 11, 2026