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Safety, Tolerability and Preliminary Efficacy of AZD5213 in Combination With Pregabalin in Subjects With PDN and Good Pain Reporting Ability

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01928381
Recruitment Status : Completed
First Posted : August 23, 2013
Results First Posted : October 3, 2016
Last Update Posted : October 3, 2016
Information provided by (Responsible Party):

Brief Summary:
This is a 2-part study. In Part 1 of the study, subjects will undergo a pain reporting training program in which a painful stimulus will be applied to the subject's hand, and the subjects will be asked to report how painful the stimulus is. Over the course of the pain training sessions, feedback will be provided to the subject about how accurately they are reporting their degree of pain, relative to the amount of pressure stimulus applied to evoke pain. Those subjects who have adequate pain reporting ability will be asked to continue into Part 2 of the study in which 3 different blinded study drugs will be administered to each subject, in a crossover design to compare whether or not the study drugs improve pain associated with diabetic neuropathy.

Condition or disease Intervention/treatment Phase
Diabetic Neuropathy, Painful; Diabetic Neuropathies Drug: AZD5213 + pregabalin Drug: Placebo Drug: pregabalin capsules Phase 2

Detailed Description:

This is a multi-center, randomized, two-part study in adults (ages 18-75 years) with Painful Diabetic Neuropathy (PDN).

In Part 1 of the study, eligible subjects will enter a 4-week Pain Training Period. During the Pain Training Period, subjects will receive three weekly in-clinic training sessions using repeated rating of experimental pressure pain stimuli. Subjects will receive feedback during this training and will be evaluated on their pain-reporting ability during each in-clinic session. Subjects with acceptable pain-reporting ability at the conclusion of the Pain Training Period will be eligible to enter Part 2 of the study. Subjects with unacceptable pain-reporting ability at the conclusion of the Pain Training Period will be discontinued from the study.

Part 2 of the study will consist of three consecutive double-blind crossover periods. Each crossover period will include 31 days of double-blind treatment. A follow-up visit will occur 14 ± 7 days after the last dose of study medication.

One of three treatments (placebo, pregabalin, or pregabalin + AZD5213) will be administered during each crossover treatment period, as determined by a randomly assigned treatment sequence.

Approximately 65 subjects will be screened in Part 1 of the study, in order to randomize up to approximately 32 subjects in Part 2 of the study.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 150 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo-Controlled Crossover Study to Evaluate the Preliminary Efficacy of AZD5213 in Combination With Pregabalin in Subjects With Painful Diabetic Neuropathy and Good Pain Reporting Ability
Study Start Date : November 2013
Actual Primary Completion Date : May 2015
Actual Study Completion Date : May 2015

Resource links provided by the National Library of Medicine

Drug Information available for: Pregabalin

Arm Intervention/treatment
Placebo Comparator: placebo capsules
Capsules to match pregabalin and AZD5213
Drug: Placebo
Double blind placebo capsules to match AZD5213 and pregabalin

Experimental: AZD5213 + pregabalin
AZD5213 in combination with pregabalin
Drug: AZD5213 + pregabalin
Double blind Investigational drug AZD5213 (capsules) given in combination with pregabalin (capsules)
Other Name: pregabalin (LYRICA)

Active Comparator: pregabalin
pregabalin capsules
Drug: pregabalin capsules
Double blind pregabalin capsules to match AZD5213 and placebo
Other Name: LYRICA (pregabalin)

Primary Outcome Measures :
  1. Brief Pain Index - Item 5, Average Daily Pain Score (Range 0-10) Higher Values Indicate Worse Pain [ Time Frame: 3 weeks of treatment ]
    Brief pain Index - diabetic painful neuropathy (BPI-DPN) - average daily pain, Item 5 (final 2 day diary + in clinic assessment at end of 3 week treatment period)

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

1. Male or female, age 18 to 75 years, inclusive, at Screen. 2. Subjects must provide informed consent in accordance with local regulations before the conduct of any study-related procedures. The informed consent should reflect the protocol stipulations concerning the use of contraception. 3. Diagnosis of Type 1 or Type 2 diabetes mellitus for at least 1 year prior to Screen. 4. Diabetes-related painful neuropathy for at least 6 months prior to Screen. 5. Pain that began in the feet and is symmetric or nearly symmetric. 6. Diabetes has been clinically stable for at least 2 months prior to Screen, and between Screen and baseline (Day 35). 7. At Screen and baseline, score of at least 4 on Item 5 ("average pain") of the modified Brief Pain Inventory for patients with painful diabetic peripheral neuropathy (BPI-DPN). 8. Able to participate in all scheduled evaluations and to complete all required tests and procedures. 9. In the opinion of the investigator, the subject must be considered likely to comply with the study protocol and to have a high probability of completing the study.

Exclusion Criteria:

1. Known or suspected hypersensitivity to pregabalin. 2. Clinically important illness or infection (e.g., chronic, persistent, or acute infection) within 30 days prior to screen or between screen adn baseline. 3. Presence of any psychiatric or neurologic disorder or any other disorder or symptom, if, in the judgement of the investigator, the disorder or symptom is likely to confound interpretation of drug effect or affect the subject's ability to complete the study. Any clinically important abnormality, as determined by investigator at Screen or baseline, in physical or neurologic examination, vital sign, ECG, or clinical laboratory test results that could be detrimental to the subject, or could affect the subject's ability to complete the study. 4. Initiation or change in intensity or frequency of non-pharmacologic therapy for PDN, including psychotherapy, physical therapy, massage, acupuncture, acupressure, or chiropractic care, within 3 months prior to baseline).

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01928381

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United States, Florida
Research Site
Clearwater, Florida, United States
Research Site
Orlando, Florida, United States
United States, Georgia
Research Site
Newnan, Georgia, United States
United States, Massachusetts
Research Site
Brockton, Massachusetts, United States
Research Site
Natick, Massachusetts, United States
Research Site
Watertown, Massachusetts, United States
United States, North Carolina
Research Site
Winston-Salem, North Carolina, United States
United States, Pennsylvania
Research Site
Duncansville, Pennsylvania, United States
Research Site
Philadelphia, Pennsylvania, United States
Sponsors and Collaborators
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Responsible Party: AstraZeneca Identifier: NCT01928381    
Other Study ID Numbers: D3031C00001
First Posted: August 23, 2013    Key Record Dates
Results First Posted: October 3, 2016
Last Update Posted: October 3, 2016
Last Verified: August 2016
Additional relevant MeSH terms:
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Diabetic Neuropathies
Peripheral Nervous System Diseases
Neuromuscular Diseases
Nervous System Diseases
Neurologic Manifestations
Diabetes Complications
Diabetes Mellitus
Endocrine System Diseases
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Calcium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Calcium-Regulating Hormones and Agents
Anti-Anxiety Agents
Tranquilizing Agents
Central Nervous System Depressants
Psychotropic Drugs