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CTRI Number  CTRI/2026/01/100088 [Registered on: 01/01/2026] Trial Registered Prospectively
Last Modified On: 25/02/2026
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Follow Up Study 
Study Design  Single Arm Study 
Public Title of Study   A study to assess the benifits and side effects of long-acting olanzapine injection in patients with schizophrenia. 
Scientific Title of Study   Prospective Observational study of Effectiveness and tolerability of Olanzapine Long-Acting Injection in patients with Schizophrenia 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Hitarth N Patel 
Designation  Postgraduate Resident (MD Psychiatry) 
Affiliation  Dr. M.K. Shah Medical College and Research Centre and SMS Multispecialty Hospital, Ahmedabad 
Address  Department Of Psychiatry, Dr M.K. Shah Medical College, Near Tapovan Circle, Visat-Gandhinagar Highway, Chandkheda, Ahmedabad 382424, Gujarat, India

Ahmadabad
GUJARAT
382424
India 
Phone  9512403782  
Fax    
Email  hitarth236@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Vishal k patel 
Designation  Professor and Head(MD Psychiatry) 
Affiliation  Dr. M.K. Shah Medical College and Research Centre and SMS Multispecialty Hospital, Ahmedabad 
Address  Department Of Psychiatry, Dr M.K. Shah Medical College, Near Tapovan Circle, Visat-Gandhinagar Highway, Chandkheda, Ahmedabad 382424, Gujarat, India

Ahmadabad
GUJARAT
382424
India 
Phone  9228249767  
Fax    
Email  dr.vk1987@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Hitarth N Patel 
Designation  Postgraduate Resident (MD Psychiatry) 
Affiliation  Dr. M.K. Shah Medical College and Research Centre and SMS Multispecialty Hospital, Ahmedabad 
Address  Department Of Psychiatry, Dr M.K. Shah Medical College, Near Tapovan Circle, Visat-Gandhinagar Highway, Chandkheda, Ahmedabad 382424, Gujarat, India

Ahmadabad
GUJARAT
382424
India 
Phone  9512403782  
Fax    
Email  hitarth236@gmail.com  
 
Source of Monetary or Material Support  
Dr M.K. Shah Medical College, Near Tapovan Circle, Visat-Gandhinagar Highway, Chandkheda, Ahmedabad 382424, Gujarat, India. 
 
Primary Sponsor  
Name  Dr. M.K. Shah Medical College and Research Centre, Ahmedabad 
Address  Dr M.K. Shah Medical College and Research Centre, Chandkheda Highway, Ahmedabad – 382424, Gujarat, India  
Type of Sponsor  Private medical college 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NA 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Hitarth Patel  SMS Multispecialty Hospital, Chandkheda, Ahmedabad  Department of Psychiatry, SMS Multispecialty Hospital, Chandkheda, Ahmedabad
Ahmadabad
GUJARAT 
9512403782

hitarth236@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee Dr. M.K. Shah Medical College and Research Centre,Ahmedabad  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: F20||Schizophrenia,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  NIL  NIl 
Comparator Agent  NIL  NIL 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Patients aged 18-60 years.
Patients with schizophrenia disorder and prescribed olanzapine long-acting injection. DSM-5TR
Patients with poor/non-compliance towards oral anti-psychotic drugs.
The patient and/or their primary caregiver is willing to provide written informed consent
 
 
ExclusionCriteria 
Details  Age below 18 years and above 60 years.
Non-consent for participation in the study.
Patients who are not prescribed olanzapine LAI.
History of one or more seizures without a clear and resolved aetiology.
Significant suicidal or homicidal risk.
Pregnant or lactating women.
Acute, serious, or unstable medical conditions.
Substance (except nicotine and caffeine) dependence within the past 30 days.
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Change in Positive and Negative Syndrome Scale (PANSS) total score and Clinical Global Impression–Severity (CGI-S) score from baseline during follow-up. For safety, Simpson-Agnus score (SAS), Barnes akathisia scale (BAS), Abnormal involuntary movement scale (AIMS), Richmond agitation sedation scale (RASS).  At baseline, 2 weeks, 4 weeks, 6 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks, 24 weeks, 28 weeks, 32 weeks, 36 weeks, 40 weeks, 44 weeks and 48 weeks. 
 
Secondary Outcome  
Outcome  TimePoints 
1. Change in Clinical Global Impression Improvement (CGI-I) score from baseline during follow-up.
2. Occurrence & severity of extrapyramidal symptoms assessed using Simpson–Angus Scale (SAS).
3. Occurrence & severity of akathisia assessed using Barnes Akathisia Scale (BAS).
4. Occurrence & severity of abnormal involuntary movements assessed using Abnormal Involuntary Movement Scale (AIMS).
5. Level of sedation & agitation assessed using Richmond Agitation Sedation Scale (RASS).
 
At baseline, 2 weeks, 4 weeks, 6 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks, 24 weeks, 28 weeks, 32 weeks, 36 weeks, 40 weeks,44 weeks & 48 weeks. 
 
Target Sample Size   Total Sample Size="50"
Sample Size from India="50" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   N/A 
Date of First Enrollment (India)   19/01/2026 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Yet Recruiting 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary  

This is a prospective observational study, and the study aims to evaluate the safety and efficacy of olanzapine long-acting injection in treatment nonadherent patients with schizophrenia. . The diagnosis and the drug to be prescribed will be decided by the consultant psychiatrist. Patients who are prescribed olanzapine long-acting injection by a consultant psychiatrist will be included in the study. A total of 50 patients who meet the inclusion criteria and who will provide written informed consent will be recruited for the study. LAI of olanzapine is administered in the upper and outer quadrant of the gluteal muscle using the Z-track technique, and after that, patients will be kept under observation for 3 hours for post-injection delirium and sedation syndrome. Assessment of participants will be done at every follow up by trained resident doctor of psychiatry department during each follow-up using semi structured proforma, it includes demographic details, positive and negative syndrome scale (PANSS) and Clinical global impression on severity and improvement (CGI) for efficacy, simpson-agnus score (SAS), Barnes akathisia scale (BAS), Abnormal involuntary movement scale (AIMS), Richmond agitation sedation scale (RASS) for safety. Assessment of laboratory investigation reports will be done at screening period and then every three months till 12 months.

 
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