NCT00723918

Combination of an Investigational Cannabinoid and Methadone for HIV-associated Neuropathy

NARC 011: A Phase II, Randomized, Double-Blind, Placebo-Controlled Study of Methadone and Combination of Methadone and SAB378 in HIV-associated Painful Peripheral Neuropathy

• Status: Withdrawn
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 0 (actual)
• Sponsor: Washington University School of Medicine · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to evaluate the effectiveness of methadone alone and in combination with SAB378 for the treatment of painful HIV-associated neuropathy.

Detailed description

Distal sensory polyneuropathy is the most common neurological complication of HIV disease and its treatment. To date no standard effective therapy has been identified. In this study, scientists will evaluate the effectiveness of treating HIV-associated neuropathy with methadone alone and in combination with a novel cannabinoid SAB378. A cannabinoid is a molecule found only in the Cannabis plant. Cannabis and some cannabinoids are effective analgesics or pain relievers. The rationale for combination therapy is twofold: (1) medications with unique mechanisms of action may affect different aspects of neuropathic pain and (2) combination therapy may act synergistically-meaning the combined effect may be greater than the effect of each drug alone. Approximately 84 participants will be enrolled in this double-blind, placebo-controlled, crossover study. Participants will be randomly assigned to three treatment groups-those receiving methadone and SAB378 placebo (an inactive substance), those receiving methadone and active SAB378, or those receiving methadone placebo and SAB378 placebo. All participants will be exposed to each of the 3 treatment groups during the study. This trial is part of the Neurologic AIDS Research Consortium, an effective collaborative clinical study group dedicated to the study of HIV-associated neurological disease.

Conditions

• HIV-associated Neuropathy
• Polyneuropathy

Interventions

Type	Name	Description
DRUG	SAB378	SAB 15 mg per day for 5 days, the 15 mg BID (twice a day) for 5 days, then 15 mg TID (three times a day) to end of 28-day treatment period, in combination with active methadone 5 mg BID for 5 days, then 5 mg TID for 5 days, to maximum of 10 mg TID until end of 28-day treatment period
DRUG	methadone	Methadone 5 mg BID (twice a day) for 5 days, then 5 mg TID (three times a day) for 5 days, to maximum of 10 mg TID, in combination with SAB placebo or SAB active drug titrated as above, to end of 28-day treatment period.
DRUG	SAB placebo	an inactive substance
DRUG	Methadone placebo	Methadone placebo

Timeline

• Start date: 2009-04-01
• Primary completion: 2010-01-01
• Completion: 2010-01-01
• First posted: 2008-07-29
• Last updated: 2018-02-09

Locations

3 sites across 1 country: United States