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Tolerability of Switching to Duloxetine for the Management of Diabetic Nerve Pain

A Comparison of Strategies for Switching Patients From Amitriptyline to Duloxetine for the Management of Diabetic Peripheral Neuropathic Pain

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00266643
Enrollment
205
Registered
2005-12-19
Start date
2005-12-31
Completion date
2007-04-30
Last updated
2007-08-03

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

Conditions

Diabetic Neuropathy, Painful

Brief summary

This study is to compare the tolerability of different methods for switching from another medication to duloxetine for the management of diabetic nerve pain. The primary objective is to compare the most gradual method with the most abrupt method, to see if they have different tolerability.

Interventions

DRUGduloxetine hydrochloride

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* You must have been diagnosed with Diabetic Peripheral Neuropathic Pain. * You must have been taking the same dose of amitriptyline once daily at bedtime for at least four (4) weeks. * You must have stable glycemic control. * You must be able to visit the doctor's office once a week for ten (10) weeks.

Exclusion criteria

* You are in the acute recovery phase following myocardial infarction. * You have Major Depressive Disorder, an Anxiety Disorder, or some other psychiatric illnesses that the doctor will ask you about. * You are allergic to amitriptyline or duloxetine. * You are currently taking an anticonvulsant, cisapride (Propulsid), or if you have taken an opioid for three or more consecutive days during the 14 days prior to Visit 2. * You have uncontrolled narrow angle glaucoma.

Design outcomes

Primary

MeasureTime frame
Subscale of the UKU side effect rating scale to be measured during the switch period. The weeks during which the switch occurs are blinded.

Secondary

MeasureTime frame
Daily: 24 hr avg pain, worst pain, night pain; NSAID & acetaminophen use.
Weekly: Leeds Sleep Evaluation Questionnaire, Brief Profile of Mood States, Clinical Global Impression of Severity. Visits 2, 7, 11: Treatment Satisfaction Questionnaire for Medic

Countries

Puerto Rico, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026