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A Study in Painful Diabetic Neuropathy

Information source: Eli Lilly and Company
ClinicalTrials.gov processed this data on August 20, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Diabetic Neuropathy, Painful

Intervention: Duloxetine (Drug); Pregabalin (Drug); Placebo (Drug)

Phase: Phase 3

Status: Completed

Sponsored by: Eli Lilly and Company

Official(s) and/or principal investigator(s):
Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5AM Eastern time (UTC/GMT - 5 hours, EST), Study Director, Affiliation: Eli Lilly and Company

Summary

This study will investigate the efficacy of a combination treatment of duloxetine + pregabalin compared with the maximal dose of each drug in monotherapy, in patients with diabetic peripheral neuropathic pain (DPNP) who have not responded to the standard recommended dose of either drug. It will provide an answer to a common clinical question, namely, is it better to increase the dose of the current monotherapy or to combine both treatments early on, in patients who do not respond to standard doses of duloxetine or pregabalin.

Clinical Details

Official title: Use of Duloxetine or Pregabalin in Monotherapy Versus Combination Therapy of Both Drugs in Patients With Painful Diabetic Neuropathy "The COMBO - DN (COmbination vs Monotherapy of pregaBalin and dulOxetine in Diabetic Neuropathy) Study"

Study design: Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Primary outcome: Change From Week 8 to Week 16 Endpoint in 24 Hour Average Pain Item Score on the Brief Pain Inventory (BPI) Modified Short Form

Secondary outcome:

Mean Change From Week 8 to Week 16 Endpoint in Items of the Brief Pain Inventory (BPI) Modified Short Form Worst Pain Score

Percentage of Participants With a Reduction of Greater Than or Equal to 30% on Brief Pain Inventory (BPI) Modified Short Form 24-Hour Average Pain Item Score at Week 16 Endpoint

Percentage of Participants With a Reduction of Greater Than or Equal to 50% on Brief Pain Inventory (BPI) Modified Short Form 24-Hour Average Pain Item Score at Week 16 Endpoint

Percentage of Participants With a Decrease of Greater Than or Equal to 2 Points on Brief Pain Inventory (BPI) Modified Short Form 24-Hour Average Pain Item Score at Week 16 Endpoint

Clinical Global Impression of Improvement (CGI-I) at Week 16 Endpoint

Mean Change From Week 8 to Week 16 Endpoint on the Neuropathic Pain Symptom Inventory (NPSI) Questionnaire

Mean Change From Week 8 to Week 16 Endpoint in Sheehan Disability Scale (SDS)

Mean Change From Week 8 to Week 16 Endpoint in Hospital Anxiety and Depression Scale (HADS)

Resource Utilization (Number of Days Hospitalized, Number of Days of Sick Leave) Week 8 Through Week 16

Patient Global Impression of Improvement (PGI-I) Score at Week 16 Endpoint

Mean Change in Blood Pressure (BP) From Week 8 to Week 16 Endpoint

Mean Change in Heart Rate From Week 8 to Week 16 Endpoint

Number of Participants With Treatment Emergent Adverse Events (TEAEs) Between Week 8 and Week 16 Endpoint

Number of Participants Who Discontinued From Study Between Week 8 and Week 16 Endpoint

Eligibility

Minimum age: 18 Years. Maximum age: N/A. Gender(s): Both.

Criteria:

Inclusion Criteria:

- Pain due to bilateral peripheral neuropathy (caused by type 1 or type 2 diabetes

mellitus. Pain must begin in the feet, with relatively symmetrical onset. Daily pain should be present for more than 3 months [assessed by questioning patient]).

- Score of at least 4 on the 24-hour average pain severity score on an 11-point Likert

scale [on Brief Pain Inventory (BPI) Modified Short Form] at screening and at randomization.

- Patient is currently not receiving treatment for diabetic peripheral neuropathic pain

(DPNP) or was receiving treatment for DPNP, with a drug other than pregabalin or duloxetine, and completed the required washout

- Patient has never received treatment with duloxetine or pregabalin. (However, a short

course of less than 15 days of treatment, at any time previously, will be allowed.)

- Stable glycemic control, as assessed by a physician investigator, and hemoglobin A1c

(HbA1c) less than or equal to 12% at screening. Exclusion Criteria:

- Have a known hypersensitivity to duloxetine or pregabalin or any of the inactive

ingredients or have any contraindication for the use of duloxetine or pregabalin.

- Have uncontrolled narrow-angle glaucoma.

- Have received treatment with a monoamine oxidase inhibitor (MAOI) within 14 days

prior to randomization, or have a potential need to use a MAOI during the study or within 5 days after discontinuation of study drug.

- Have received fluoxetine within 30 days prior to randomization.

- Have acute liver injury (such as hepatitis) or severe cirrhosis (Child-Pugh Class C).

- Have a serum creatinine greater than or equal to 1. 5 milligram per deciliter (mg/dL)

or a creatinine clearance less than 60 milliliter per minute (mL/min), at screening.

- Are judged clinically by the investigator to be at suicidal risk or as defined by a

score of 2 or greater on Question 9 of the Beck Depression Inventory-II (BDI-II), at screening or randomization

- Have a historical exposure to drugs known to cause neuropathy (for example,

vincristine), or a history of a medical condition, including pernicious anemia and hypothyroidism, that could have been responsible for neuropathy.

- Have pain that cannot be clearly differentiated from or conditions that interfere

with the assessment of the DPNP.

- Have serious or unstable cardiovascular, hepatic, renal, respiratory or hematological

illness; symptomatic peripheral vascular disease; a history of seizure disorder; or other medical (including unstable hypertension and not clinically euthyroid) or psychological conditions that, in the opinion of the investigator, would compromise participation or be likely to require hospitalization during the course of the study.

- Have received non-pharmacological treatment for pain within 14 days prior to

randomization, or do not agree to abstain from non-pharmacological treatment during the study.

- Have a history of frequent and/or severe allergic reactions with multiple

medications.

Locations and Contacts

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Osijek 31000, Croatia

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Rijeka HR-51000, Croatia

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Varazdin 42000, Croatia

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Zagreb 10000, Croatia

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Angers 49933, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Antibes Juan Les Pins 06600, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Bourges 18000, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Nevers 58000, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Nimes 30029, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Paris 75018, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Valenciennes 59322, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Vierzon 18100, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Vieux Conde 59690, France

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Dresden 01307, Germany

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Schkeuditz 04435, Germany

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Ampelokipoi 11527, Greece

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Athens 11521, Greece

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Melissia 15126, Greece

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Catania 95100, Italy

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Milano 20162, Italy

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Napoli 80131, Italy

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Rome 00161, Italy

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Seoul 138-736, Korea, Republic of

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Mexico City 38000, Mexico

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Eindhoven 5623 EJ, Netherlands

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Maastricht 6229 HX, Netherlands

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Bialystok 15-445, Poland

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Lublin 20-538, Poland

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Szczecin 70-506, Poland

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Wroclaw 50-127, Poland

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Girona 17007, Spain

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Valencia 46010, Spain

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Falkoping SE 52143, Sweden

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Huddinge SE 141 86, Sweden

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Lund 22185, Sweden

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Stockholm 11522, Sweden

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Zuerich CH-8091, Switzerland

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Ankara 06100, Turkey

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Izmir 35340, Turkey

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Ashton-Under-Lyne OL6 9RW, United Kingdom

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Chorley PR7 1PP, United Kingdom

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Kelowna, British Columbia V1Y 1Z9, Canada

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Vancouver, British Columbia V6H 3X8, Canada

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Manchester, Greater Manchester M13 0JE, United Kingdom

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Winnipeg, Manitoba R3P 3P4, Canada

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Newcastle, New South Wales 2292, Australia

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Warrawong, New South Wales 2502, Australia

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Halifax, Nova Scotia B3H 3A7, Canada

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Cambridge, Ontario N1R 7L6, Canada

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Laval, Quebec H7T 2P5, Canada

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Ayrshire, Scotland KA6 6DX, United Kingdom

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Elizabeth Vale, South Australia 5112, Australia

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Nuneaton, Warwickshire CV10 7BL, United Kingdom

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician., Livingston, West Lothian EH54 6PP, United Kingdom

Additional Information

Starting date: March 2010
Last updated: January 17, 2013

Page last updated: August 20, 2015

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