Long-Term Safety Study of Bicifadine for the Treatment of Chronic Low Back Pain

A Multicenter Standard of Care-Controlled Study to Evaluate the Long-Term Safety of Bicifadine for the Treatment of Chronic Low Back Pain

Status

Completed

Phases

Phase 3

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00281645

Enrollment

1250

Registered

2006-01-25

Start date

2004-12-31

Completion date

Unknown

Last updated

2007-03-27

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

Conditions

Chronic Low Back Pain

Brief summary

The primary objective of the study is to evaluate the safety and efficacy of bicifadine 400 mg BID for up to one year in patients with moderate to severe chronic low back pain. The secondary objectives are to compare the long-term safety of bicifadine to standard of care therapy, to evaluate the safety of bicifadine following discontinuation of dosing, and to evaluate the safety and efficacy of lower doses of bicifadine in patients who do not tolerate bicifadine 400 mg BID.

Detailed description

There are two ways by which subjects could enter this study. Subjects who completed 12 weeks of treatment in two other double blind clinical studies of bicifadine (Studies 020 and 021, both in the United States) could roll over into this study. Also, de novo subjects (that is, subjects who had not previously received bicifadine) could enroll in this study.

Interventions

DRUGBicifadine

DRUGStandard of Care (pharmacological analgesic treatment)

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

Main Inclusion Criteria: * Patients with low back pain assessed as Class 1, Class 2 or Class 3 according to the Quebec Task Force Classification for Spinal Disorders and without detectable leg weakness on neurological examination. * Patients must have required on average daily analgesics for the treatment of low back pain over the past 3 months prior to screening. Main

Exclusion criteria

* Patients may not have moderate or severe pain in a location other than the lower back (with the exception of radiation to the lower extremity) or weakness in the lower extremities. * Patients must not have had epidural corticosteroid injections in the lower back within 1 month prior to baseline. * Patients may not have an unstable medical condition.

Design outcomes

Primary

Measure	Time frame
Adverse Events	—
Clinical Labs	—
Vital Signs	—
ECGs	—

Secondary

Measure	Time frame
Pain Severity Rating (VAS)	—
Short-Form McGill Pain Questionnaire (SF-MPQ)	—
Roland-Morris Disability Questionnaire (RDQ)	—
Short-Form 36 (SF-36) Health Survey	—
Patient Withdrawal Checklist	—

Outcome results

None listed

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