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CTRI Number  CTRI/2025/04/084117 [Registered on: 04/04/2025] Trial Registered Prospectively
Last Modified On: 27/03/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   A clinical trial to study the effects of the drug-simvastatin in patients with major depressive disorder  
Scientific Title of Study   Effect of simvastatin as an add on to standard antidepressant therapy in patients with major depressive disorder in indian population: A randomized, double-blind placebo controlled study 
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 Mokshit Meera Mukund 
Designation  Junior Resident Doctor 
Affiliation  All India Institute of Medical Sciences, New Delhi 
Address  Room 4008, Department of Pharmacology, 4th floor, Teaching Block, All India Institute of Medical Sciences, New Delhi

New Delhi
DELHI
110029
India 
Phone  9751668158  
Fax    
Email  MOKS55LMS@GMAIL.COM  
 
Details of Contact Person
Scientific Query
 
Name  Dr KH Reeta 
Designation  Professor 
Affiliation  All India Institute of Medical Sciences, New Delhi 
Address  Department of Pharmacology, 4th floor, Teaching Block, All India Institute of Medical Sciences, New Delhi

New Delhi
DELHI
110029
India 
Phone  9711204141  
Fax    
Email  reetakh@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Mokshit Meera Mukund 
Designation  Junior Resident Doctor 
Affiliation  All India Institute of Medical Sciences, New Delhi 
Address  Room 4008, Department of Pharmacology, 4th floor, Teaching Block, All India Institute of Medical Sciences, New Delhi

New Delhi
DELHI
110029
India 
Phone  9751668158  
Fax    
Email  moks55lms@gmail.com  
 
Source of Monetary or Material Support  
All India Institute of Medical Sciences, ANSARI NAGAR EAST, NEW DELHI - 110029, INDIA 
 
Primary Sponsor  
Name  All India Institute of Medical Sciences New Delhi 
Address  All India Institute of Medical Sciences, Ansari Nagar east, New Delhi - 110029, India 
Type of Sponsor  Research institution and hospital 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Mokshit Meera Mukund  All India Institute of Medical Sciences, Ansari Nagar East  Room no 1-24, 2nd floor, Department of Psychiatry, AIIMS RAK OPD
New Delhi
DELHI 
9751668158

MOKS55LMS@GMAIL.COM 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institute Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: F329||Major depressive disorder, singleepisode, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Placebo  Glucose tablet identical in size and shape to simvastatin 20 mg will be given at night with food for 6 weeks. 
Intervention  Simvastatin 20 mg  Simvastatin 20 mg will be given at night with food for 6 weeks 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  Patients on a stable dose (no change in dose) of antidepressants for 4 weeks.

Patients willing to participate and give consent.
 
 
ExclusionCriteria 
Details  Patients with comorbid psychiatric or neurological disorders and substance use disorders except nicotine replacement therapy.

Use of other lipid-lowering therapies.
Significant liver disease (e.g., ALT/AST more than 3 times the upper limit of normal) or liver failure.

History of rhabdomyolysis, unexplained muscle pain, weakness, or unexplained creatinine kinase (CK) more than 3 times the upper limit of normal.

History of muscle disorders (e.g., rhabdomyolysis, myositis).

Severe renal impairment

Patients with LDL values less than 80 mg/dl and LDL values more than 190 mg/dl.

Patients on immunomodulator therapy.

Pregnancy or lactation or expecting to get pregnant during the treatment.

Known hypersensitivity to simvastatin or other statins. 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Pre-numbered or coded identical Containers 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
Reduction in depressive symptoms as assessed by the Hamilton Depression Rating Scale (HAMD-17)   At baseline and 6 weeks 
 
Secondary Outcome  
Outcome  TimePoints 
Reduction in depression symptoms as assessed by the Montgomery Åsberg Depression Rating Scale (MADRS) after 6 weeks of add-on simvastatin therapy.

To evaluate the change in pro-inflammatory cytokines after 6 weeks of add-on simvastatin therapy.

To evaluate the change in serum IDO and BDNF after 6 weeks of add-on simvastatin therapy.

To evaluate the change in serum lipid profile after 6 weeks of add-on simvastatin therapy.

To evaluate the safety of add-on simvastatin. 
0 and 6 weeks 
 
Target Sample Size   Total Sample Size="70"
Sample Size from India="70" 
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   Phase 2/ Phase 3 
Date of First Enrollment (India)   05/05/2025 
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="2"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   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 study will use a prospective, randomized, double-blind, placebo-controlled design to investigate the effects of add-on Simvastatin therapy over 6 weeks on patients with major depressive disorder (MDD). The primary aim is to assess changes in depressive symptoms using the Hamilton Depression Rating Scale (HAMD-17). Secondary objectives include evaluating changes in serum IDO and serum BDNF levels, changes in proinflammatory cytokines, and the Montgomery-Åsberg Depression Rating Scale (MADRS), as well as assessing the safety of the simvastatin therapy. Participants clinically diagnosed with major depressive disorder and on stable antidepressant therapy for at least 4 weeks. They will be screened in the psychiatry outpatient department at AIIMS, New Delhi. Eligible participants meeting the inclusion criteria will be randomly assigned to either the treatment group, receiving simvastatin 20 mg, or the placebo group, receiving a matching placebo. Both groups will continue their ongoing antidepressant regimen for 6 weeks. At enrollment, demographic data, depression scores, and antidepressant treatment-related data will be collected. Blood samples will be taken to measure depression-related markers (BDNF and IDO). After 6 weeks of supplementation, all baseline parameters will be reassessed. Changes in depression scores from baseline to post-supplementation will be calculated and presented as mean (SD). Any adverse events during the intervention will be monitored and reported to the corresponding authorities.

 
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