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A clinical trial to study and compare the effects of two drugs amitriptyline and duloxetine in patients with type 2 diabetes mellitus with neuropathic pain

A randomized double blind Trial comparing Efficacy and Safety of Duloxetine vs. Amitriptyline in painful Diabetic Neuropathy

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2010/091/001036
Enrollment
60
Registered
2010-07-22
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: null- PAINFUL DIABETIC NEUROPATHY

Interventions

Intervention1: DULOXETINE: To start with, 20mg/ day for two weeks was given. In case off inadequate response, the dose was increased to 40mg/day for another 2 weeks. If pain is still not controlled, t

Sponsors

PGIMER
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Inclusion criteria 1. Presence of type 2 diabetes mellitus 2. No change in anti-diabetic medication for the last 1 month 3. Evidence of diabetic neuropathy by Diabetic Neuropathy Symptom Score >1 point, Diabetic Neuropathy Examination Score >4 point, Vibration perception test and monofilament test. 4. Neuropathic pain present for at least 1 month 5. Mean pain intensity of more than 50% by patient assessment by VAS

Exclusion criteria

Exclusion criteria: Exclusion criteria 1. Age below 18 or above 75 years 2. Evidence of renal disease (Se. creatinine > 1.5) 3. Evidence of liver disease (deranged LFT with clinical evidence) 4. Pregnant and lactating mothers and women intending pregnancy 5. Evidence of other causes for neuropathy and painful conditions 6. Epilepsy, psychiatric and cardiac diseases, hypertensives not on treatment, peripheral vascular disease and substance abuse. 7. Intake of anticonvulsants, antidepressants, membrane stabilizers and opioids 8. Participation in any other clinical trial with in the last 30 days

Design outcomes

Primary

MeasureTime frame
Percentage of patients showing improvement by patient assessment of efficacy by visual analogue scale was done. This was compared between the two treatment groups.Timepoint: Baseline (0), 2,4 6 weeks

Secondary

MeasureTime frame
Comparison of the following scores between patients for painful diabetic neuropathy- 1. Short form McGill pain questionnaire 2. 11- point Likert scale for pain 3. Hamilton rating scale for depression 4. Adverse events 5. Quality of night time sleep 6. Patient preference of the drug 7. Patient Global Impression of Change (PGIC, 7-point scale). Timepoint: baseline,2 4 6 weeks

Countries

India

Contacts

Public ContactDebasish Hota

Assiociate Professor in Pharmacology

debhota@gmail.com01722755244

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026