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CTRI Number  CTRI/2018/04/012960 [Registered on: 03/04/2018] Trial Registered Retrospectively
Last Modified On: 22/12/2018
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   Effect of melatonin on anxiety and pain in patient undergoing eye surgery 
Scientific Title of Study   Effect of preoperative melatonin on anxiety and pain in patient undergoing Phacoemulsification cataract surgery 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Sarala N 
Designation  Professor  
Affiliation  Sri Devaraj Urs Medical College 
Address  Department of Pharmacology Sri Devaraj Urs Medical College Sri Devaraj Urs Academy of Higher Education and Research Tamaka

Kolar
KARNATAKA
563102
India 
Phone  9845750165  
Fax  08152243006  
Email  n_sarala@rediffmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Sarala N 
Designation  Professor  
Affiliation  Sri Devaraj Urs Medical College 
Address  Department of Pharmacology Sri Devaraj Urs Medical College Sri Devaraj Urs Academy of Higher Education and Research Tamaka

Kolar
KARNATAKA
563102
India 
Phone  9845750165  
Fax  08152243006  
Email  n_sarala@rediffmail.com  
 
Details of Contact Person
Public Query
 
Name  Sarala N 
Designation  Professor  
Affiliation  Sri Devaraj Urs Medical College 
Address  Department of Pharmacology Sri Devaraj Urs Medical College Sri Devaraj Urs Academy of Higher Education and Research Tamaka

Kolar
KARNATAKA
563102
India 
Phone  9845750165  
Fax  08152243006  
Email  n_sarala@rediffmail.com  
 
Source of Monetary or Material Support  
Sri Devaraj Urs Academy of Higher Education and Research, Tamaka, Kolar, Karnataka, India PIN 563102 
 
Primary Sponsor  
Name  Sri Devaraj Urs Academy of Higher Education and Research 
Address  Sri Devaraj Urs Academy of Higher Education and Research, Tamaka, Kolar, Karnataka, India PIN 563102 
Type of Sponsor  Private medical college 
 
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 
Sarala N  Sri Devaraj Urs Medical College  Department of Pharmacology,1st Floor, College Building, and Department of Ophthalmology,1st Floor RLJalappa Hospital and Research Centre attached to Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research Tamaka
Kolar
KARNATAKA 
9845750165
08152243006
n_sarala@rediffmail.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, Kolar  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  Cataract ,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Diazepam  Tablet Diazepam 5mg orally 90 minutes before surgery 
Intervention  Melatonin  Tablet melatonin 3mg orally 90 minutes before surgery 
 
Inclusion Criteria  
Age From  50.00 Year(s)
Age To  80.00 Year(s)
Gender  Both 
Details  1.Adult patients of either aged 50-80 years
2.Patients undergoing elective Phacoemulsification cataract surgery
3.Patients with American society of Anaesthesiologists (ASA) grade I-II
 
 
ExclusionCriteria 
Details  1. Patients with sleep disorders, diabetes mellitus, depressive disorder, insufficient pupillary dilatation, nystagmus, deafness, allergy to study drugs, or expected compliance problems due to known psychiatric disease and epilepsy
2. Ongoing treatment with hypnotics, psychotropic drugs, non steroidal anti-inflammatory agents, beta blockers, coumarin derivatives and opioids within a week before admission
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Not Applicable 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
Decrease in verbal anxiety score (VAS) , verbal pain score (VPS) and sedation score   Before premedication (T1), 60 minutes after premedication (T2), during the operation period (T3) and also postoperatively before shifting them from the recovery room (T4). Sedation score will be assessed during performance of block. 
 
Secondary Outcome  
Outcome  TimePoints 
To assess the adverse effects using WHO causality assessment scale

 
60 minutes after drug administration 
 
Target Sample Size   Total Sample Size="178"
Sample Size from India="178" 
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   Post Marketing Surveillance 
Date of First Enrollment (India)   27/02/2018 
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)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   1.J Pharmacol Pharmacother. 2011 Oct;2(4):266-9. doi: 10.4103/0976-500X.85956. 2.J Postgrad Med. 2012 Apr-Jun;58(2):140-6. doi: 10.4103/0022-3859.97177. Review. 3.Ann Med Health Sci Res. 2014 May;4(3):320-4. doi: 10.4103/2141-9248.133452. Review 4.Food Chem Toxicol. 2011 Jan;49(1):248-50. doi: 10.1016/j.fct.2010.10.026. Epub 2010 Oct 29. 5.Biomed Res Int. 2017;2017:1327492. doi: 10.1155/2017/1327492. Epub 2017 Sep 26. 6.J Pain Res. 2017 Oct 16;10:2471-2477. doi: 10.2147/JPR.S144647. eCollection 2017. 7.Indian J Crit Care Med. 2015 Jul;19(7):384-7. doi: 10.4103/0972-5229.160274. 
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary  

Need for the study

Drugs such as propofol, benzodiazepines, opioids and dexmedetomedine have been used for sedation and pain during Phacoemulsification cataract surgery.1 Benzodiazepines are commonly used to alleviate anxiety but may impair psychomotor performance and suppress the duration of rapid eye movement sleep.2 Propofol and opioids cause sedation, disorientation and respiratory depression, dexmedetomedine may lead to hypotension, bradycardia and cardiovascular depression.3 In addition the cognitive function is impaired which is undesirable during cataract surgery, thus these limitations lead to impairment in patient’s co-operation during surgery. Therefore, the need for a drug that relieves anxiety and pain without causing cognitive dysfunction is desirable.

Melatonin is secreted by the pineal gland in the dark and inhibited by exposure to light. Oral administration of 1–5 mg of melatonin results in plasma levels of 10–100 times more than the observed endogenous night-time levels.4 Melatonin has sedative, analgesic, antioxidative and anti-inflammatory property.5 Intraocular pressure (IOP) is higher during daytime than at night and it has been suggested that melatonergic mechanisms in the eyes could be responsible for the diurnal rhythm in IOP. Melatonin can cause adverse effects like drowsiness, headache, gastrointestinal disturbances and rash.6 It does not produce residual effects or suppression of rapid eye movement sleep. Melatonin 3-10mg oral has been approved by CDSCO for use in India on 12/03/1998 to treat sleep disorder, jet lag and regulation of circadian rhythm disorders.7 Few clinical studies have been carried out regarding the anxiolytic and analgesic effects of melatonin in the perioperative period. Hence this study will be carried out to evaluate the effects of melatonin premedication on anxiety, pain, sedation score and surgeon’s satisfaction in elective phacoemulsification cataract surgery.

  Objectives

  1. To study the effect of melatonin on anxiety, pain and sedation using verbal anxiety score (VAS) , verbal pain score (VPS) and sedation score
  2. To assess the adverse effects using WHO causality assessment scale 

 
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