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A Randomized, Double-blind, Placebo- and Active-controlled Study of the Electric Current Effects of ABT-639 on the Spontaneous Activity of Pain Sensory Receptors in Patients with Diabetic Peripheral Neuropathy.

A Randomized, Double-Blind, Placebo- and Active Controlled Study of the Electrophysiological Effects of ABT-639 on Spontaneous Activity in C Nociceptors in Patients with Diabetic Peripheral Neuropathy.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2011-005127-40-GB
Enrollment
Unknown
Registered
2012-02-14
Start date
2012-03-01
Completion date
Unknown
Last updated
2013-01-21

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

Conditions

Diabetec Neuropathic Pain MedDRA version: 14.1 Level: LLT Classification code 10012683 Term: Diabetic peripheral neuropathy System Organ Class: 10029205 - Nervous system disorders

Interventions

Product Name: ABT-639 50mg Pharmaceutical Form: Capsule, hard INN or Proposed INN: N/A Current Sponsor code: ABT-639 Other descriptive name: ABT-639 Concentration unit: mg milligram(s) Concentration t

Sponsors

Abbott GmbH & Co. KG
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Subject is between the ages of 18 to 75 years with a diagnosis of diabetes mellitus and must have a diagnosis of painful distal symmetric diabetic polyneuropathy and presence of ongoing pain due to diabetic peripheral neuropathy for at least 6 months. Subject must have an average score of = 4 on the 24 hour average pain score (0-10 numerical rating scale) collected over approximately 7 days prior to the Baseline Visit. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 42 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 6

Exclusion criteria

Exclusion criteria: Subject has clinically symptomatic neuropathic pain conditions that can not be distinguished from DNP or interfere with the pain assessments of DNP. A subject has newly diagnosed or clinically significant medical conditions or mental disorders that would preclude participation or would interfere with DNP assessments or other functions. Subject has clinically significant abnormalities in clinical laboratory tests.

Design outcomes

Primary

MeasureTime frame
Main Objective: To assess the effect of single dose of ABT-639 on spontaneous activity in peripheral C nociceptors measured through microneurography in subjects with painful diabetic peripheral neuropathy (DPN) compared to placebo and lidocaine.;Secondary Objective: To assess the safety, tolerability, and pharmacokinetics of a single dose of ABT 639.;Primary end point(s): Number of Significant Latency Increases (SLI) per minute. Maximum Increase: the largest individual SLI expressed as a percentage of baseline latency. Total Increase: sum of individual SLI increases. Total spikes Spikes/min;Timepoint(s) of evaluation of this end point: Recordings for 10 minute intervals after the oral dose for each C fiber for which microneurography recording is done. Note that recording may be done for a subject on more than one C fiber.

Secondary

MeasureTime frame
Secondary end point(s): N/A;Timepoint(s) of evaluation of this end point: N/A

Countries

United Kingdom

Contacts

Public ContactEU Clinical Trials Helpdesk

Abbott Laboratories

euclinicaltrials@abbott.com+441628644475

Outcome results

None listed

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