Prolotherapy in Acupoints in Chronic Non-specific Low Back Pain (cLBP)

Trial statusRecruiting
Trial phaseEarly Phase 1
Trial typeInterventional
Biological sexAll
Age35+
SponsorNational and Kapodistrian University of Athens

About this trial

Chronic non-specific low back pain (CNSLBP) is among the most prevalent causes of disability on the planet, which often proves to be refractory to conventional pharmacological, interventional, and rehabilitation approaches. Although acupuncture has also shown analgesic effectiveness, its variability and reliance on practitioner skill limit its universal introduction into Western medical practice. Prolotherapy, an emerging regenerative injection treatment with hypertonic dextrose solutions, has been of potential benefit in managing musculoskeletal pain by triggering tissue repair and controlling neurogenic inflammation. Interestingly, several acupuncture points correspond to neuroanatomically relevant sites.

This single-blind randomized controlled trial aims to ascertain whether combinational prolotherapy with dextrose 15% and lidocaine 1% is superior to lidocaine 1% in patients with CNSLBP. Sixty patients will be allocated randomly into two equal-sized groups and receive a maximum of 15 ultrasound-guided injections into standardized acupoints of the lumbar area (BL23, BL25, BL31, BL54, GV3, GV4, and Ashi points) during three treatment sessions. Outcomes will be evaluated using the Numeric Rating Scale (NRS), the Oswestry Disability Index (ODI), the TUG (Timed Up and Go) test, the BPI (Brief Pain Inventory) scale, the Rolland-Morris Low Back Pain Disability Questionnaire and the Global Impression of Pain Questionnaire at baseline, and at 15, 30, and 90 days post-treatment.

Outcomes should clarify whether dextrose-enhanced prolotherapy provides improved analgesia and functional return in comparison with local anesthetic injection alone. This study can present an uncomplicated, low-cost, and integrative regimen for CNSLBP with significant clinical and socioeconomic implications.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Body Mass Index (BMI) up to 45 kg/m2

M51.3 Degeneration of intervertebral discs

M54.5 Low back pain

M54.8 Other forms of back pain

Disqualifiers

Any infection of the skin of the lumbar spine area, such as cellulitis, or periarticular or intra-articular infection or spondylodiscitis during the last 3 months

History of periarticular or intra-articular injection in the LMS with corticosteroids, local anesthetic, hyaluronic acid, radiofrequency application, electroacupuncture, or prolotherapy within the last three months.

Previous surgery (e.g., spinal fusion) in the LMS

Oral corticosteroids for low back pain or uncontrolled opioids

Trial design

Design model

Parallel

Treatments tested in this trial

  • Dextrose 15% and lidocaine 1% infiltration

    Drug

    Infiltration of back acupoints

  • Lidocaine 1% infiltration

    Drug

    Infiltration of dextrose and lidocaine in back acupoints

Treatment groups

60 Participants
are divided into 2 treatment groups
Group A: LidocaineSham comparator 1 intervention
Group B: Dextrose and lidocaineActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Pain severity score 15 days after completion of the intervention

Pain severity score from the short Brief Pain Inventory (BPI) form, 15 days after completion of the infiltrations. Minimum value: 0 and Maximum value: 10 Higher scores correspond to worse outcome - i.e. greater pain severity or greater interference with functioning.

Time frame
15 days after completion of infiltrations of first participant until 15 days after completion of infiltration of the last participant.

Secondary outcomes

1

Pain severity score at 90 days after completion of the therapy

Pain severity score from BPI short form 90 days after completion of the infiltrations.

Time frame
From 90 days after completion of the infiltrations of the first participant until 1 month after completion of infiltrations of the last participant. Just before the first infiltration a baseline measurement will be also made.
2

Oswestry disability index (ODI) at baseline, 15, 30 and 90 days after completion of therapy

Oswestry scale score

Time frame
Before first infiltration of the first participant up to 3 months after completion of the therapy of the last one.
3

Short term changes after the first infiltration

Pain decrease, duration of analgesia and optimism at 24 hours (Day 1) after completion of the first session. Pain reduction after the first session will be analyzed as prognostic factor for the pain improvement.

Time frame
24 hours (Day 1) after first infiltration of the first participant until 24 hours after first infiltration of the last participant.
4

TUG (timed up and go) test

TUG test in seconds at baseline, 15 minutes before and after 1st Infiltration and Day 15, Day 30, and Day 90 after the 3rd infiltration

Time frame
Just before the first infiltration until 3 months after completion of the therapy of the last participant

Other outcomes

1

Subanalyses of the scales measured

Subanalyses of questions from the above mentioned scales (BPI + Oswestry Disability Index + Rolland + TUG + ΝRS + Global Impression of Change) eg. usage of analgesics, changes in life attitudes, changes in movement/work/food habits, undergoing other parallel treatments or hospitalizations

Time frame
Time frames are pre-determined as stated from the above mentioned scales: DAY 1, DAY 15, DAY 30, (immediately after the interventions), DAY 90 after the first infiltration

Sponsors and contacts

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