Study of REN-1654 in Patients With Sciatica Pain

June 23, 2005 updated by: Renovis

REN-1654 in Sciatica: A Phase 2, Randomized, Double-Blind, Placebo Controlled, Multi-Center Study in Subjects With Pain Due to Lumbosacral Radiculopathy

The purpose of this study is to gain initial safety and efficacy data on the experimental agent REN-1654 in patients with pain that radiates down the leg(s), and is typical of sciatica (lumbosacral radiculopathy). These patients will usually have a herniated disc that is causing compression on the nerves coming out of the spinal column.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is a multi-center, randomized, double-blind, placebo-controlled study to determine the efficacy and tolerability of REN-1654 in subjects with sciatica. After screening and baseline clinical assessments, subjects will be randomly assigned to receive REN 1654 100 mg or matching placebo, once daily for 3 weeks. Leg pain, back pain and other efficacy measures will be assessed at 1 and 3 weeks after initiation of treatment. A subset of patients will undergo analysis of blood levels of REN-1654 during the course of the study (pharmacokinetics). Subjects will discontinue treatment after 3 weeks and return after a further 3 weeks off therapy for a final clinical assessment 6 weeks after initiation of treatment. If a subject does not return for follow-up, an effort will be made by telephone to document their clinical status and whether other interventions have been made.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
72

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35235
        • Alabama Clinical Therapeutics
    • Arizona
      • Tuscon, Arizona, United States, 85712
        • Advanced Clinical Therapeutics, LLC
    • California
      • Stanford, California, United States, 94305
        • Orthopaedic Spine Center at Stanford University Medical Center
    • Colorado
      • Denver, Colorado, United States, 80218
        • Mile High Research Center
    • Florida
      • Clearwater, Florida, United States, 33765
        • Clinical Research of West Florida
      • Ocala, Florida, United States, 34471
        • Renstar Medical Research, Inc.
      • St. Petersburg, Florida, United States, 33701
        • Suncoast Neuroscience Associates
    • Georgia
      • Atlanta, Georgia, United States, 30329
        • Emory Orthopaedics and Spine Center
    • Massachusetts
      • Boston, Massachusetts, United States, 02115
        • Brigham & Women's Hospital, Pain Trials Center
    • Missouri
      • St. Louis, Missouri, United States, 63110
        • Washington University School of Medicine, Pain Management Center
      • St. Louis, Missouri, United States, 63141
        • A&A Pain Institute of St. Louis
    • New York
      • New York, New York, United States, 10022
        • Research Across America
    • North Carolina
      • Asheville, North Carolina, United States, 28806
        • Asheville Neurology Specialists, PA
      • Raleigh, North Carolina, United States, 27612
        • Wake Research Associates
    • Ohio
      • Cleveland, Ohio, United States, 44195
        • The Cleveland Clinic Spine Institute
    • Pennsylvania
      • Allentown, Pennsylvania, United States, 18103
        • Lehigh Valley Hospital Neurosciences and Pain Research
    • Rhode Island
      • Warwick, Rhode Island, United States, 02886
        • Omega Medical Research
    • Texas
      • Austin, Texas, United States, 78731
        • Central Texas Spine Institute
    • Utah
      • West Jordan, Utah, United States, 84088
        • Advanced Clinical Research

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 55 years (ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Males or females, ages 18 to 55, able and willing to provide written informed consent to participate in the study.
  • Able to read, understand and follow the study instructions, including completion of pain intensity rating scales.
  • Leg pain radiating to or below the knee in a dermatomal pattern, diagnosed as being due to sciatica or lumbar or lumbosacral radiculopathy, the onset of which occurred 2 to 12 weeks prior to initiation of study treatment.
  • Leg pain severity on a screening Categorical Pain Intensity Rating (for the prior 24 hour period) of at least 4, using an 11-point categorical pain intensity scale with 0 = no pain and 10 = worst pain imaginable.
  • Leg pain on a screening Categorical Pain Intensity Rating rated as more severe than back pain.
  • Positive straight leg raising (SLR) test as defined in Appendix B of this protocol.
  • Subjects who are compliant in maintaining a Pain Diary between screening and baseline visits, and who record a 24-hour average Categorical Pain Intensity Rating score of at least 4 or greater on at least 3 days during the week prior to baseline visit.
  • Subject who can maintain stable pharmacologic treatments for sciatica symptoms taken prior to dosing including analgesics, anti-inflammatory medications (e.g. NSAIDS), antidepressants, anticonvulsants, anxiolytics, or muscle relaxants. Subjects must be on stable doses of such medications for 2 weeks prior to the baseline visit, and maintained on the same doses throughout the study. Medications taken on an as-needed basis are permitted, and subjects will be asked to record daily usage of such medications in the subject diary.
  • Subjects who at screening are receiving adjunctive analgesic therapy such as acupuncture or biofeedback should either discontinue it or establish a schedule of treatments that will remain consistent for 2 weeks prior to the baseline visit, and throughout the study.
  • Subject with screening laboratory values within normal limits, or if abnormal must be considered not clinically significant and in the opinion of the Investigator not to place the subjects at risk.
  • If female, must be post-menopausal, surgically sterile, not currently pregnant (verified by a screening pregnancy test) or nursing, and using a reliable contraception method such as intrauterine device (IUD), hormonal birth control pills, or double barrier method (male condom, female condom or diaphragm with spermicidal jelly).
  • If male, must agree to use double-barrier methods of contraception.

Exclusion Criteria:

  • History of peripheral neuropathy or any other pain conditions with pain intensity equal to or greater than the pain associated with sciatica.
  • Motor loss in a muscle corresponding to the affected dermatome graded as more than "trace".
  • History of cauda equina syndrome, symptomatic scoliosis, spondylolisthesis (degenerative or isthmic), ankylosing spondylitis, rheumatoid arthritis or other inflammatory arthropathies. Degenerative arthritis is allowed.
  • History of hepatic, cardiovascular, renal, gastrointestinal, hematological, neurological, endocrine (including diabetes), metabolic, pulmonary, immunological (including HIV infection) or psychiatric disease that in the opinion of the Investigator would pose a significant safety risk for a subject exposed to an investigational compound such as REN-1654.

  • History of the following ophthalmic disorders based upon general medical review at the screening visit. Subjects will further undergo a screening ophthalmologic assessment. Should any of the following be identified at the screening ophthalmologic examination, the subject will be excluded from the study.

    • Symptomatic cataract, resulting in any visual impairment (if a subject has been diagnosed with cataract to a degree that the cataract interferes with daily living and/or regarding which an ophthalmologist has recommended cataract surgery);
    • Other vision-impairing disorders (if a subject is aware of any eye disorder that has impaired vision, such as age-related macular degeneration, lazy eye (amblyopia), double vision, or any optic nerve inflammation; presbyopia and other non-pathological visual acuity deficits are not exclusionary);
    • Glaucoma or history of ocular hypertension (intraocular pressures greater than 21 mmHg).
  • Cognitive or psychiatric disorders that may diminish compliance with study procedures, including maintenance of a daily pain diary and accurate dosing of study medication.
  • Subjects who, at time of enrollment, have requested for or been advised by their physicians to receive local, regional, or spinal (articular, epidural, intrathecal or nerve root block) injections of medications for pain treatment or surgical intervention for their sciatica symptoms.
  • Although subjects who report work-related injuries will be allowed to enroll, subjects will be excluded if they are involved in litigation related to the current episode of sciatica.
  • Subjects with a screening creatinine laboratory value of ≥ 2.0 mg/dL.
  • Screening liver enzyme results greater than the upper limit of the normal range
  • Use of chemotherapy agents or history of cancer, other than basal cell carcinoma and squamous cell carcinoma, within five years prior to the screening visit.
  • History of drug or alcohol abuse within one year prior to screening.
  • Use within 2 weeks before start of study investigational compound dosing at baseline and through the end of the study of any investigational compound, any epidural, intrathecal, or nerve root block agent, corticosteroids, etanercept or other anti-TNF-α agent, topical anesthetics, or topical analgesics .
  • Previous participation in another REN-1654 study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: ECT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Leg Pain: Change in Average Daily 11-Point Categorical Pain Intensity Rating at the end of the 3-week treatment period

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Initiation of the following clinical interventions and time to intervention, if elected, through the 3-week treatment period and 3-week post treatment follow-up period:
[1] Local, regional, or spinal (articular, epidural, intrathecal, or nerve root block) injections of medications for pain treatment. [2] Surgery for treatment of sciatica symptoms
Use of concomitant analgesic medications (tracked by daily log of medication usage)
Back Pain: Change in Average Daily Categorical Pain Intensity
Leg Pain: Change in Maximum (or movement-induced) Daily Categorical Pain Intensity Rating
Back Pain: Change in Maximum (or movement-induced) Daily Categorical Pain Intensity
Change in Oswestry Low Back Disability Questionnaire; Change in Straight Leg Raising test
Change in muscle weakness
Change in sensory deficit
Change in tendon reflexes
Global impression of change: subject and investigator

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Renovis

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2003

Study Completion

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2005

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 4, 2005

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 4, 2005

First Posted (ESTIMATE)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 5, 2005

Study Record Updates

Last Update Posted (ESTIMATE)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 24, 2005

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 23, 2005

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2005

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • REN-1654-2-03

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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