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CTRI Number  CTRI/2025/03/082605 [Registered on: 18/03/2025] Trial Registered Prospectively
Last Modified On: 11/11/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   A clinical trial to assess the effectiveness of ketamine when used with antidepressants in moderate to severe depressive episode 
Scientific Title of Study   Ketamine as an adjuvant to antidepressants in moderate to severe unipolar depression: A randomised clinical trial 
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 Shruthi Nandakumar 
Designation  Postgraduate student 
Affiliation  Shri BM Patil Medical College, Hospital and Research centre, BLDE(DU) 
Address  Department of Psychiatry, Shri BM Patil Medical College, Hospital and Research centre, BLDE(DU),Bangaramma Sajjan Campus, Vijayapura-586103, Karnataka

Bijapur
KARNATAKA
586103
India 
Phone  8606331101  
Fax    
Email  shru.22nk@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Santosh Ramdurg 
Designation  Professor and HOD 
Affiliation  Shri BM Patil Medical College, Hospital and Research centre, BLDE(DU) 
Address  Department of Psychiatry, Shri BM Patil Medical College, Hospital and Research centre, BLDE(DU),Bangaramma Sajjan Campus, Vijayapura-586103, Karnataka

Bijapur
KARNATAKA
586103
India 
Phone  9611281386  
Fax    
Email  santoshramdurg@gmail.com  
 
Details of Contact Person
Public Query
 
Name  DR SHRUTHI NANDAKUMAR 
Designation  POSTGRADUATE STUDENT 
Affiliation  SHRI BM PATIL MEDICAL COLLEGE, HOSPITAL AND RESEARCH CENTRE, BLDE(DU) 
Address  DEPARTMENT OF PSYCHIATRY, SHRI BM PATIL MEDICAL COLLEGE, HOSPITAL AND RESEARCH CENTRE, BLDE(DU),BANGARAMMA SAJJAN CAMPUS, VIJAYAPURA-586103, KARNATAKA

Bijapur
KARNATAKA
586103
India 
Phone  8606331101  
Fax    
Email  shru.22nk@gmail.com  
 
Source of Monetary or Material Support  
Shri BM Patil Medical College, Hospital and Research centre, BLDE(DU),Bangaramma Sajjan Campus, Vijayapura-586103, Karnataka  
 
Primary Sponsor  
Name  Dr Shruthi Nandakumar 
Address  Junior Resident, Shri BM Patil Medical College, Hospital and Research centre, BLDE(DU),Bangaramma Sajjan Campus, Vijayapura-586103, Karnataka  
Type of Sponsor  Other [Self] 
 
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 Shruthi Nandakumar  Shri BM Patil Medical College, Hospital and Research Centre  OPD 19, Department of Psychiatry, BLDE(DU), Bangaramma Sajjan Campus, Solapur Road, Vijayapura - 586103, Karnataka State, India
Bijapur
KARNATAKA 
8606331101

shru.22nk@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: F32||Major depressive disorder, singleepisode,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  IV ketamine infusion along with oral antidepressants  0.5 mg/kg of ketamine is diluted in 100ml normal saline and given over a period of 40 minutes. Total 4 cycles of ketamine infusion will be given, with 2 cycles given per week.  
Comparator Agent  ORAL ANTIDEPRESSANTS  One group of patients will be receiving only oral antidepressants for a duration of 4 weeks 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  Male or female patients in the age group of 18 to 65 years
Subjects who agree to sign an informed consent document
Subjects diagnosed with moderate or severe depression by a qualified psychiatrist
according to ICD 10 or ICD 11
Subjects having an initial score of more than 20 on the Montgomery Asberg Depression Rating
Scale
Subjects with or without history of suicide attempts in current episode
Subjects with or without co-morbid anxiety, panic or obsessive compulsive symptoms  
 
ExclusionCriteria 
Details  Subjects of age more than 65 years
Subjects with history of bipolar depression
Subjects with psychotic symptoms
Subjects with pre-existing cognitive impairment or mental retardation
Subjects with history of hypersensitivity to ketamine
Pregnant and breastfeeding women
Subjects with history of substance use (except nicotine and/or caffeine) 
 
Method of Generating Random Sequence   Random Number Table 
Method of Concealment   An Open list of random numbers 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
To assess the onset of response and effectiveness of ketamine as an adjuvant to oral antidepressants
in moderate to severe unipolar depression. 
Baseline, after 24 hours, 2 weeks and 4 weeks 
 
Secondary Outcome  
Outcome  TimePoints 
To assess improvement in symptoms using Montgomery Asberg Depression Rating
Scale (MADRS) scores in both study groups. 
Baseline, after 24 hours, 2 weeks & 4 weeks 
To assess the risk of suicidal intent using Columbia- Suicide Severity Rating Scale
(C-SSRS) & response to treatment in both study groups.
 
Baseline, after 24 hours, 2 weeks & 4 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 
Date of First Enrollment (India)   01/04/2025 
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="1"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Closed to Recruitment of Participants 
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   Major Depressive Disorder (MDD) is a severe condition affecting millions globally, leading to significant health and socioeconomic burdens. Conventional antidepressants and cognitive-behavioral therapies often have delayed effects and may not work for all patients. This delay is particularly problematic for those at risk of suicide. Ketamine, an NMDA-receptor antagonist, has shown rapid antidepressant effects at low doses, offering a potential breakthrough for faster relief in MDD treatment, especially in individuals with suicidal thoughts. However, there is limited research on its use alongside standard antidepressants in real-world clinical settings. The study aims to evaluate the effectiveness and onset of response of ketamine as an adjuvant therapy to oral antidepressants in moderate to severe unipolar depression. Key assessments include:
1) Depression symptom improvement (using the Montgomery-Åsberg Depression Rating Scale - MADRS)
2) Suicidal intent assessment (using the Columbia-Suicide Severity Rating Scale - C-SSRS)

Sample size: 70 participants (35 per group)
Design: Both groups will receive oral antidepressants, along with one group also receiveing IV ketamine therapy (4 cycles over 4 weeks, with 2 cycles per week).
Application of scales at 1st visit, after 24 hours, after 2 weeks and 4 weeks.
 
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