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Study of REN-1654 in Patients With Sciatica Pain

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: NCT00107055
Recruitment Status : Unknown
Verified June 2005 by Renovis.
Recruitment status was:  Active, not recruiting
First Posted : April 5, 2005
Last Update Posted : June 24, 2005
Information provided by:

Brief Summary:
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.

Condition or disease Intervention/treatment Phase
Sciatica Herniated Disc Radiculopathy Drug: REN-1654 Phase 2

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.

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Study Type : Interventional  (Clinical Trial)
Enrollment : 72 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Educational/Counseling/Training
Official Title: REN-1654 in Sciatica: A Phase 2, Randomized, Double-Blind, Placebo Controlled, Multi-Center Study in Subjects With Pain Due to Lumbosacral Radiculopathy
Study Start Date : December 2003
Study Completion Date : April 2005

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Sciatica

Primary Outcome Measures :
  1. Leg Pain: Change in Average Daily 11-Point Categorical Pain Intensity Rating at the end of the 3-week treatment period

Secondary Outcome Measures :
  1. 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:
  2. [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
  3. Use of concomitant analgesic medications (tracked by daily log of medication usage)
  4. Back Pain: Change in Average Daily Categorical Pain Intensity
  5. Leg Pain: Change in Maximum (or movement-induced) Daily Categorical Pain Intensity Rating
  6. Back Pain: Change in Maximum (or movement-induced) Daily Categorical Pain Intensity
  7. Change in Oswestry Low Back Disability Questionnaire; Change in Straight Leg Raising test
  8. Change in muscle weakness
  9. Change in sensory deficit
  10. Change in tendon reflexes
  11. Global impression of change: subject and investigator

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

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.

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): NCT00107055

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

Layout table for additonal information Identifier: NCT00107055     History of Changes
Other Study ID Numbers: REN-1654-2-03
First Posted: April 5, 2005    Key Record Dates
Last Update Posted: June 24, 2005
Last Verified: June 2005
Keywords provided by Renovis:
Herniated nucleus pulposus
Lumbosacral radiculopathy
Anti-TNF alpha
Tumor necrosis factor alpha
Additional relevant MeSH terms:
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Intervertebral Disc Displacement
Peripheral Nervous System Diseases
Neuromuscular Diseases
Nervous System Diseases
Sciatic Neuropathy
Neurologic Manifestations
Signs and Symptoms
Spinal Diseases
Bone Diseases
Musculoskeletal Diseases
Pathological Conditions, Anatomical