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CTRI Number  CTRI/2024/06/068288 [Registered on: 04/06/2024] Trial Registered Prospectively
Last Modified On: 16/04/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Preventive 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Effect of Tablet Melatonin on pain in patients undergoing Lower limb surgery 
Scientific Title of Study   Effect of Melatonin On Pain In Patients Undergoing Lower Limb Surgery: A Randomized Open Label study- PG Dissertation 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Mohammed Faisel H A 
Designation  Post Graduate, Pharmacology 
Affiliation  Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research 
Address  Department of Pharmacology, Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research, Tamaka, Kolar

Kolar
KARNATAKA
563103
India 
Phone  7795849618  
Fax    
Email  drmdfaisel618@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Bhuvana K 
Designation  Professor, Pharmacology 
Affiliation  Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research 
Address  Department of Pharmacology, Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research, Tamaka, Kolar

Kolar
KARNATAKA
563103
India 
Phone  9900383738  
Fax    
Email  drbhuvanak2010@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Bhuvana K 
Designation  Professor, Pharmacology 
Affiliation  Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research 
Address  Department of Pharmacology, Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research, Tamaka, Kolar

Kolar
KARNATAKA
563103
India 
Phone  9900383738  
Fax    
Email  drbhuvanak2010@gmail.com  
 
Source of Monetary or Material Support  
Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research, Tamaka, kolar, karnataka, India. Pincode- 563103 
 
Primary Sponsor  
Name  Mohammed faisel h a 
Address  post graduate, department of pharmacology, sri devaraj urs medical college, tamaka, kolar, 563101 
Type of Sponsor  Other [SELF] 
 
Details of Secondary Sponsor  
Name  Address 
NOT APPLICABLE  NOT APPLICABLE 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Mohammed Faisel H A  R L Jalappa Hospital and Research Centre, Sri Devaraj Urs Medical College  Post Operative ward, Second floor
Kolar
KARNATAKA 
7795849618

drmdfaisel618@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Central Ethics Committee, Sri Devaraj Urs Academy of Higher Education and Research  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: M968||Other intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Injection Diclofenac 50mg Intramuscular  After surgery, participants in the control group will receive only injection diclofenac 50mg by intramuscular route twice daily for 5 days, both in the morning and at night. 
Intervention  Injection Diclofenac 50mg Intramuscular and oral Tablet Melatonin 5mg  After surgery, participants in the Melatonin group will receive injection diclofenac 50mg by intramuscular route twice daily for 5 days, both in the morning and at night. In addition tablet Melatonin 5mg will be administered orally with sip of water 60 minutes before the surgery, at 9pm on the day of surgery and for the following five post operative days. 
 
Inclusion Criteria  
Age From  20.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  1)patients undergoing elective lower limb orthopedic surgery under spinal anesthesia
2)patients belonging to American society of anesthesiologists (ASA) grade 1 and grade 2 
 
ExclusionCriteria 
Details  1)patients who have used opioids within 12 hours before the surgery
2)chronic alcoholics
3)patients on nifedipine, benzodiazepines, non-benzodiazepines and beta blockers within a week before admission
4)patients with sleep disorders, diabetes mellitus, depressive disorder, allergy to study drugs, abnormal baseline liver function tests or expected compliance problems due to known psychiatric disease and epilepsy
5)pregnant or lactating women 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Not Applicable 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
1) To assess the effect of Melatonin on post operative pain relief in patients undergoing lower limb orthopedic surgery using Visual Analog Scale
2) To study the effect of melatonin on peri-operative anxiety using Visual Analog Scale for Anxiety (VAS-A)
3) To evaluate the safety profile of melatonin using WHO causality scale 
1) Intensity of pain measured using Visual Analog Scale at baseline(before study medication is administered) and at 2,4,6,8,12,24,48,72,96 and 120 hours.
2) BPAS score at baseline and at 12,24,48,72,96 and 120 hours.
3) FAS at baseline and at 2,4,6,8,12,24,48,72,96 and 120 hours.
4) VAS-A score at baseline, 6, 12 and 24hrs post surgery 
 
Secondary Outcome  
Outcome  TimePoints 
NIL  NIL 
 
Target Sample Size   Total Sample Size="80"
Sample Size from India="80" 
Final Enrollment numbers achieved (Total)= "80"
Final Enrollment numbers achieved (India)="80" 
Phase of Trial   Phase 4 
Date of First Enrollment (India)   15/06/2024 
Date of Study Completion (India) 31/10/2025 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) 31/10/2025 
Estimated Duration of Trial   Years="1"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Completed 
Recruitment Status of Trial (India)  Completed 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

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

Response - YES
  1. What data in particular will be shared?
    Response - Individual participant data that underlie the results reported in this article, after de-identification (text, tables, figures, and appendices).

  2. What additional supporting information will be shared?
    Response - Clinical Study Report

  3. Who will be able to view these files?
    Response - Researchers whose proposed use of the data has been approved by an independent review committee identified for this purpose.

  4. For what types of analyses will this data be available?
    Response - For individual participant data meta-analysis.

  5. By what mechanism will data be made available?
    Response - Proposals should be directed to [drmdfaisel618@gmail.com].

  6. For how long will this data be available start date provided 01-01-2027 and end date provided 01-01-2029?
    Response - Immediately following publication. No end date.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - NIL
Brief Summary
Modification(s)  
Post operative pain is common in patients undergoing surgery and effective control is required to reduce post operative complications, improve patient satisfaction and facilitate early recovery. Melatonin was observed to be effective in treatment of sleep disorder, anxiety and painful conditions. Melatonin also has antiemetic, analgesic and anti-inflammatory effects. While many studies have investigated the analgesic effect of melatonin, there are few studies evaluating its role in post operative pain relief following surgical procedures for lower limb fractures in india.
OBJECTIVES OF STUDY:
1) To assess the effect of Melatonin on post operative pain relief in patients undergoing lower limb orthopedic surgery using Visual Analog Scale
2) To study the effect of melatonin on peri-operative anxiety using Visual Analog Scale for Anxiety (VAS-A)
3) To evaluate the safety profile of melatonin using WHO causality scale
 
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