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Predicting Analgesic Response to Acupuncture: A Practical Approach

Predicting Analgesic Response to Acupuncture: A Randomized, Placebo-Controlled, Subject and Assessor Blinded, 100-Subject Clinical Trial of Electro-Acupuncture in the Treatment of Chronic Low Back Pain

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02890810
Enrollment
121
Registered
2016-09-07
Start date
2016-07-31
Completion date
2020-06-30
Last updated
2021-01-25

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

Conditions

Back Pain, Chronic Low Back Pain

Keywords

Acupuncture, Back Pain, Chronic Pain

Brief summary

In this placebo controlled, patient and assessor blinded clinical trial, the investigators will administer electroacupuncture vs sham electroacupuncture to patients suffering from chronic low back pain, and monitor their symptoms as well as collecting objective outcome measures. The investigators objective is to identify predictors of pain reduction and functional improvement with electroacupuncture vs placebo.

Interventions

OTHERReal Acupuncture with Electrical Stimulation

Acupuncture is a therapy commonly used in East Asian countries, where the practitioner insert thin needles at specific body sites in order to relieve pain and illnesses. Recent studies found low frequency electricity applied through acupuncture needles can lead to profound pain relief by increasing endorphin levels in the central nervous system. Electroacupuncture will thus be used as the active intervention to treat chronic low back pain in this clinical study.

OTHERSimulated Acupuncture with Electrical Stimulation

This intervention serves as the placebo control of the active intervention. Sterile acupuncture needles and the ITO electrical stimulators will be used in this intervention. But special care will be taken to have this intervention mimic the real treatment yet remaining as physiologically inert as possible.

Sponsors

National Center for Complementary and Integrative Health (NCCIH)
CollaboratorNIH
Stanford University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
21 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Age 21-65 2. English Fluency 3. Chronic LBP for ≥ 6 Months 1. Chronicity: cLBP defined as a back pain problem that has persisted at least 3 months and has resulted in pain on at least half the days in the past 6 months. 2. Location: between the lower posterior margin of the rib cage and the horizontal gluteal fold 4. Average pain over the last month ≥ 5/10

Exclusion criteria

1. Radicular low back pain: defined as sharp (or burning) pain, with a defined territory, radiating down the limb, beyond the knee. Radicular pain may be accompanied by sensory and motor deficit along 1 or more dermatomes. Radicular back pain may also be accompanied by MRI evidence of intervertebral disc protrusion and compression of spinal cord and/or nerve roots. 2. Pending litigation or Worker's compensation related to the low back pain. 3. Currently pregnant or planning to become pregnant (in next 6 months) 4. American Society of Anesthesiologist (ASA) class III or above physical status. ASA class III is defined as a patient with severe systemic disease. Examples would include poorly controlled diabetes, hypertension, COPD or morbid obesity (BMI ≥ 40). 5. Mental health conditions or treatment for mental health problems that would interfere with study procedures, at the discretion of the study team. For example, psychosis, untreated major depression, ongoing substance abuse, suicidal ideation. These will be assessed by the MINI. 6. Medications: opioids ≥60mg morphine equivalent units/day, benzodiazepines, corticosteroids. 7. Prohibited interventions: during the study period, the following are not permitted 1. Back surgeries 2. Injections with local anesthetics or steroids to the back 3. New chiropractic maneuvers 4. New physical therapy programs 5. New medications for back pain 8. Bleeding disorders at the discretion of the study team. 9. Previous acupuncture treatment in the past 10 years. 10. Medical conditions that would interfere with study procedures (eg. Heart disease or pacemaker, active infection), per discretion of the team

Design outcomes

Primary

MeasureTime frameDescription
Mean back pain intensity by patient-report7 daysPatient self-reported mean back pain intensity on 11 point (0-10) numerical rating scale (NRS).
Roland Morris Disability Questionnaire1 dayValidated functional outcome measure in chronic low back pain with 24 yes/no questions regarding physical function.

Secondary

MeasureTime frameDescription
Physical exam to assess lumbar facet irritation.1 monthPhysical exam assessing facet irritation via positive or negative response to lumbar facet maneuver in up to 5 minutes.
Physical exam to assess lumbar spine range of motion1 monthPhysical exam assessing range of motion in lumbar spine (measured in degrees) in up to 5 minutes.
Quantitative Sensory TestingTests used are typically stable for 1-2 weeksStandardized response to noxious thermal and mechanical stimuli up to 120 seconds.
Heart Rate Variability1 monthHeart rate variability (LF/HF) collected via non-invasive, HRVLive! device up to 10 minutes.
Blood pressure1 dayBlood pressure collected via OMRON electric blood pressure monitor, in mmHg up to 60 seconds.
Physical exam to determine neurological function1 monthPhysical exam assessing neurological function (recorded as presence or absence of light touch sensation, and stretch reflexes at the knees and ankles) in up to 5min.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026