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CTRI Number  CTRI/2022/09/045408 [Registered on: 12/09/2022] Trial Registered Prospectively
Last Modified On: 08/08/2024
Post Graduate Thesis  No 
Type of Trial  PMS 
Type of Study   Other (Specify) [Non-randomised 3 arm study]  
Study Design  Non-randomized, Multiple Arm Trial 
Public Title of Study   Clinical Study for Efficacy, Safety and Tolerability of FDC of Gabapentin 400mg and Nortriptyline HCl 10mg in Adult patients with Peripheral Neuropathy with or without association of Diabetes Mellitus. 
Scientific Title of Study   An Open Label, Randomized, 3 Arm, Multicentric, Prospective Clinical Study to assess the Efficacy, Safety and Tolerability of Fixed Dose Combination of Gabapentin 400mg and Nortriptyline HCl 10mg Vs Gabapentin 400mg Vs Nortriptyline HCl 10mg in Adult patients with Peripheral Neuropathy with or without association of Diabetes Mellitus. 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
CT-CE-01-2016 Version 03 04/Oct/2021  Protocol Number 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Sundar Ganesh 
Designation  Project Manager 
Affiliation  iDD Research Solutions Inc 
Address  iDD Research Solutions Pvt. Ltd. Tek Meadows Campus, No 51, 3rd, C block, Old Mahabalipuram Rd, Sholinganallur, Chennai, Tamil Nadu
Sithaphalmandi
Chennai
TAMIL NADU
600119
India 
Phone  9994020228   
Fax    
Email  sundar.ganesh@iddresearch.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Yogesh Sharma 
Designation  Medical Director 
Affiliation  iDD Research Solutions Pvt. Ltd 
Address  iDD Research Solutions Pvt. Ltd. Tek Meadows Campus, No 51, 3rd, C block, Old Mahabalipuram Rd, Sholinganallur, Chennai, Tamil Nadu

Chennai
TAMIL NADU
600119
India 
Phone    
Fax    
Email  yogesh@iddresearch.com  
 
Details of Contact Person
Public Query
 
Name  Mr Vairamuthu Ammaiyappan  
Designation  Associate Director-Project Management 
Affiliation  iDD Research Solutions Pvt. Ltd 
Address  iDD Research Solutions Pvt. Ltd. Tek Meadows Campus, No 51, 3rd, C block, Old Mahabalipuram Rd, Sholinganallur, Chennai, Tamil Nadu

Chennai
TAMIL NADU
600119
India 
Phone    
Fax    
Email  vairamuthu.ammaiyappan@iddresearch.com  
 
Source of Monetary or Material Support  
SunGlow Lifescience Pvt Ltd, Plot No.6, F Block, TVD’s Srishri Flats, United Colony 2 nd street, Medavakkam, Chennai – 600100, India. 
 
Primary Sponsor  
Name  Sunglow Life Science Pvt Ltd 
Address  SunGlow Lifescience Pvt Ltd, Plot No.6, F Block, TVD’s Srishri Flats, United Colony 2 nd street, Medavakkam, Chennai – 600100, India. 
Type of Sponsor  Pharmaceutical industry-Indian 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study
Modification(s)  
No of Sites = 4  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Chikkalingaiah Siddegowda  Eesha Multispeciality Hospital  1 & 30,Ward no 6 Dasarahalli main road, Bhuvaneshwari Nagar, Dasarahalli, Bangalore 560024
Bangalore
KARNATAKA 
9844004187

eeshaclinicalresearch@gmail.com 
Dr K Rakesh  Excel Hospital  Department: Neurology Division: Neurology Room:103 1-5-56/29, Plot No. 29, Old Alwal, Near IG Statue,beside Bharat petroleum, Secunderabad, Telangana 500010
Hyderabad
TELANGANA 
7731030321

doctorresearch1212@gmail.com 
Dr Reginald Varadarajulu  Medstar Speciality Hospital  No.614, 17/1/3, Kodigehalli Main road, Sahakarnagar, Post Bangalore, Bengaluru Urban
Bangalore
KARNATAKA 
9880101778

medstarclinicalresearch@gmail.com 
Dr Mukulesh Gupta  Udyaan Healthcare  730, Udyan-1 Eldeco, Opp. AWHO, Near Bangla Bazar, Lucknow, Uttar Pradesh 226002,
Lucknow
UTTAR PRADESH 
8939077019

drmukuleshgupta6@gmail.com 
 
Details of Ethics Committee
Modification(s)  
No of Ethics Committees= 4  
Name of Committee  Approval Status 
Institutional Ethics Committee  Approved 
Institutional Ethics committee Udyaan Health Care  Approved 
Medstar speciality Hospital Ethics Committee  Approved 
Medstar speciality Hospital Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Approved/Obtained 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  , (1) ICD-10 Condition: G00-G99||Diseases of the nervous system,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Fixed Dose Combination of Gabapentin 400mg and Nortriptyline HCl 10mg Tablet  1 Unit of Fixed Dose Combination of Gabapentin 400mg and Nortriptyline HCl 10mg Tablet twice daily for 24 weeks. 
Intervention  Gabapentin 400 mg  1 Unit of Gabapentin 400 mg Tablet twice daily for 24 weeks 
Comparator Agent  Nil  Nil 
Intervention  Nortriptyline HCl 10 mg  1 Unit of Nortriptyline HCl 10 mg Tablet twice daily for 24 weeks. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  1) Men and women of at least 18 years of age willing to give informed consent for the study.
2) Patients diagnosed with peripheral neuropathy who have abnormalities in 2 of 3 categories (signs, symptoms, and objective tests of nerve conduction studies or quantitative sensory threshold testing).
3) Patients with peripheral neuropathy associated with diabetes that is stable and controlled (HbA1C ≤ than 10 %) with no new symptoms associated with diabetes within previous 3 months.
4) Patients with at least mild painful symptoms of diabetic neuropathy for at least 1 year duration, but not longer than 10 years duration
5) Patients on pain medication (prescribed analgesics), stable for atleast 3 months before study entry or pain treatment naive.
6) Patients having Toronto Clinical Neuropathy Score (TCNS) ≥ 6 at screening/ baseline visit(Day 1/ Week 0) 
 
ExclusionCriteria 
Details  1) Female subject of childbearing potential is pregnant/nursing, plans to become pregnant or is unwilling to use approved birth control.
2) Escalating or changing pain condition within the past month as evidenced by investigator examination.
3) Subject has had corticosteroid therapy at an intended site of stimulation within the past 30 days.
4) Subject has had radiofrequency treatment of an intended target dorsal root ganglion within the past 3 months.
5) Subject currently has an active implantable device including implanted cardioverter defibrillator, pacemaker, spinal cord stimulator or intrathecal drug pump.
6) Subjects currently has an active infection.
7) Subject has, in the opinion of the Investigator, a medical comorbidity that contraindicates participation in this clinical trial.
8) Subject has participated in another clinical investigation within 30 days that may confound the outcomes of the current study as determined by the investigator. 
 
Method of Generating Random Sequence    
Method of Concealment    
Blinding/Masking    
Primary Outcome  
Outcome  TimePoints 
Primary Endpoint:

a) Change from baseline in peroneal motor nerve conduction velocity at week 0 (Visit 1) and week 24.

b) Change from baseline in patient-reported responses to Toronto Clinical Neuropathy Score (TCNS) at week 0 (Visit 2) and week 24. 
24 weeks 
 
Secondary Outcome  
Outcome  TimePoints 
Secondary Endpoints:
a) Change from baseline in quality of life administered by SF-36 Questionnaire instrument at week 0 (Visit 2), Week 12 and week 24 (Patient global impression of quality of life assessed by the SF-36
short form)

b) Adverse events will be assessed during the entire duration of the study. Laboratory end points will be assessed prior to treatment and at the end of treatment.

ï‚· Clinical - Incidence of adverse events
ï‚· Biochemical -
o Liver function tests (Bilirubin, SGOT, SGPT, ALP)
o Renal function tests (Urea, creatinine)
o Urine Examination 
24 weeks 
 
Target Sample Size   Total Sample Size="150"
Sample Size from India="150" 
Final Enrollment numbers achieved (Total)= "0"
Final Enrollment numbers achieved (India)="0" 
Phase of Trial   Post Marketing Surveillance 
Date of First Enrollment (India)   15/09/2022 
Date of Study Completion (India) Date Missing 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
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)  Completed 
Publication Details   Nil 
Individual Participant Data (IPD) Sharing Statement

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

Response - NO
Brief Summary  
Peripheral Nerve Disorders (Peripheral neuropathy)
Peripheral neuropathy is a common problem and for some patients, pain is a disabling component of the neuropathy. The first goal in evaluating patients with painful peripheral neuropathies is to identify the cause, with the hope of identifying treatment to reverse nerve damage. When neuropathic pain is present, it is appropriate to treat this concurrently, during the evaluation, as well as during the treatment of the neuropathy, if identified is in process.
For some types of neuropathy, there are no available treatments for the underlying disorder, and therapy for neuropathic pain, if present may be the only treatment available.

INVESTIGATIONAL PRODUCT (S)

GABAPENTIN
Gabapentin is an anti-epileptic medication, also called an anticonvulsant. It affects chemicals and nerves in the body that are involved in the cause of seizures and some types of pain. Gabapentin is used in adults to treat nerve pain caused by herpes virus or shingles (herpes zoster) and to treat restless legs syndrome (RLS). Gabapentin is also used to treat seizures in adults and children who are at least 3 years old.

Role of Gabapentin:
The mechanism of action of gabapentin remains unknown. Evidence suggests that it is most likely to be the result of a complex synergy between increased GABA synthesis, non-NMDA receptor antagonism and binding to the a2d subunit of voltage dependent calcium channels. The latter action inhibits the release of excitatory neurotransmitters. Although it was expected to act as a GABA agonist, gabapentin does not act directly on GABA receptors,
nor does it influence the reuptake of GABA. It does increase the synthesis of GABA from glutamate and enhances its release from astrocytes.

Nortriptyline is a tricyclic antidepressant. It affects chemicals in the brain that may become unbalanced. Nortriptyline is used to treat symptoms of depression.

It is believed that nortriptyline either inhibits the reuptake of the neurotransmitter serotonin at the neuronal membrane or acts at beta-adrenergic receptors. Tricyclic antidepressants do not inhibit monoamine oxidase nor do they affect dopamine reuptake. Nortriptyline is a metabolite of amitriptyline and reportedly blocks norepinephrine, serotonin uptake, sodium channels, thus reduces transmission of pain sensation.
 
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