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A Bioequivalence study to compare the Bioequivalence of two formulation of quetiapine in schizophrenic patients.

An open label, balanced, randomized, two treatment, two-period, two-sequence, crossover, multicentric experimental bioequivalence study comparing Quetiapine film coated tablets 300 mg (Manufactured by Dr. Reddys Laboratories Ltd., India) to the reference listed drug Seroquel® film coated tablets 300 mg (Manufactured by AstraZeneca Pharmaceuticals LP, USA) under fasting conditions after multiple dose administration at steady state in adult schizophrenic patients stabilized on Quetiapine 600 mg per day. - NA

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2010/091/000181
Enrollment
54
Registered
2010-04-01
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

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

Conditions

Health Condition 1: F209- Schizophrenia, unspecified

Interventions

Intervention1: Quetiapine film coated tablets 300 mg (as quetiapine fumarate): Patients will be administered either Test or Reference product twice daily for the first five days followed by crossover

Sponsors

Dr Reddys Laboratories Ltd India
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1.Written informed consent for participation in the study by the patient and Patient?s Legally Acceptable Representative (LAR). If the patient or his/her legally acceptable representative is unable to read/write ? an impartial witness should be present during the entire informed consent process who must append his/her signatures to the consent form. 2.Patient has a documented clinical diagnosis of stable schizophrenia (DSM IV-TR) controlled by a stable 300 mg Quetiapine regimen given at 12-hour intervals from at least 2 weeks prior to the first dosing, as confirmed by Principal Investigator 3. Having a Body Mass Index (BMI) between 18 and 35 (inclusive), calculated as weight in kg / height in m2. 4. Not having any significant diseases or clinically significant abnormal findings except schizophrenia during screening, medical history, physical examination, laboratory evaluations, 12-lead ECG recordings and Chest X ray (Postero-anterior view). 5.The investigator must ensure that the respective hepatic, renal, haematopoietic, cardiac and respiratory functions are appropriate to include the patient in the study. 6.Able to comply with study procedures in the opinion of the investigator

Exclusion criteria

Exclusion criteria: 1. Known hypersensitivity/allergy or idiosyncratic reaction to Quetiapine or its excipients. 2. Clinically significant illnesses (including hypotensive episodes and systemic infection) or surgery within 4 weeks prior to the first dosing. 3. Current or relevant history of serious, severe or unstable psychiatric illness (Meeting the criteria for any other (Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) Axis I) except schizophrenia. 4. History of syncope or orthostatic hypotension. 5. Ingestion of any medication other than listed below at any time in 10 days before the first study drug administration. In any such case Patient selection will be at the discretion of the Principal Investigator. Following is the list of permissible medications, provided, the patients are on a stable regimen at least 10 days prior to and throughout the study. Alprazolam, Fluoxetin, Imipramine, Haloperidol, Resperidone. (Refer Appendix-I for list of nonpermissible medication) 6. A history of alcohol or drug dependence by DSM-IV criteria within 6 months prior to screening. 7. Smokers who smoke 10 or more than 10 cigarette/day or inability to abstain from smoking during the study. 8. Donation of blood (≥ 1 unit or 350 mL) within 90 days prior to receiving the first dose of study medication or during the study.

Design outcomes

Primary

MeasureTime frame
To compare the bioavailability and characterise the pharmacokinetic profile of the Sponsor?s formulation (Quetiapine film coated tablets 300 mg) with respect to the reference formulation (Seroquel® film coated tablets 300 mg) in adult Schizophrenic patients (stabilized on Quetiapine 600 mg per day) under fasting conditionsTimepoint: NIL

Secondary

MeasureTime frame
To monitor the safety of the patients who are exposed to the investigational medicinal product.Timepoint: NIL

Countries

India

Contacts

Public ContactDr Praveen Shetty

NIL

praveenshetty@lambda-cro.com079-40202098

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026