Efficacy of Acupuncture for Chronic Low Back Pain

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

640 participants

Study Classification

INTERVENTIONAL

Study Start Date

2004-04-30

Study Completion Date

2007-06-30

Brief Summary

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This is a trial to clarify the extent to which acupuncture needling can diminish the effect of chronic back pain on patient functioning and symptoms.

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Detailed Description

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This is a 4-arm multi-site randomized controlled trial to clarify the extent to which various types of acupuncture needling can diminish the effect of chronic low back pain on patient functioning and symptoms. Reviews have noted the poor quality of research in this area and urged that scientifically rigorous studies be conducted. Recent higher quality trials suggest acupuncture is a promising treatment for back pain. This study directly addresses methodological shortcomings that have plagued previous studies. A total of 640 subjects (160 per arm) with low back pain lasting at least 3 months will be recruited from group model HMOs in Seattle, WA and Oakland, CA. They will be randomized to one of three different methods of stimulation of acupuncture or to continue usual medical care. Ten treatments will be provided over 7 weeks. The primary outcomes, dysfunction and bothersomeness of low back pain, will be measured at baseline, and after 8, 26, and 52 weeks by telephone interviewers masked to treatment. Analysis of covariance within an intention-to-treat context will be used to analyze the data. Because chronic back pain is a major public health problem and the top reason patients seek acupuncture treatment, a clear, unambiguous assessment is critical for making informed decisions about whether acupuncture should be included as part of conventional care for back pain or covered by insurance. Results of this study will provide the clearest evidence to date about the value of acupuncture needling as a treatment for chronic low back pain.

Conditions

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Low Back Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Usual care

Group Type NO_INTERVENTION

No interventions assigned to this group

non needle control

Group Type PLACEBO_COMPARATOR

Accupuncture

Intervention Type PROCEDURE

Acupuncture - Standardized Points

Group Type SHAM_COMPARATOR

Accupuncture

Intervention Type PROCEDURE

Accupunture - Experimental Points

Group Type EXPERIMENTAL

Accupuncture

Intervention Type PROCEDURE

Interventions

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Accupuncture

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of low back pain including lumbago, unspecified backache, sprains and strains of sacroiliac, lumbar, sacral, or unspecified regions of the spine
* Back pain must be of at least 3 months duration and rated at least 3 on a symptom bothersomeness scale

Exclusion Criteria

* non-mechanical causes or potential causes of low back pain (i.e. sciatica, underlying systemic or visceral disease, pregnancy, spondylolisthesis, spinal stenosis, cancer or unexplained weight loss, recent vertebral fracture)
* previous treatment with acupuncture
* inappropriate candidate for acupuncture (i.e. severe clotting disorders or on anticoagulant medication, heart pacemakers)
* characteristics complicating the interpretation of the findings (severe or progressive neurologic deficits, back surgery within the prior three years, planning to seek other treatment for back pain)
* characteristics related to ability to complete the study protocol (unable to speak English, plans to move out of town)

Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No