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Study to Investigate the Potential Pharmacological Effect of Oral Palmitoylethanolamide (PEA) Therapy in the Management of Low Back Pain (Neuropathic Pain)

Study to Investigate the Potential Pharmacological Effect of Oral Palmitoylethanolamide (PEA) Therapy in the Management of Low Back Pain (Neuropathic Pain): A Randomized, Double-blind, Placebo-controlled, Parallel-group Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06694337
Enrollment
120
Registered
2024-11-19
Start date
2025-01-28
Completion date
2025-06-23
Last updated
2025-11-18

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

Conditions

Low Back Pain

Brief summary

This clinical trial aims to evaluate the potential therapeutic effects of oral supplemental Palmitoylethanolamide (PEA) Phytosome® in managing neuropathic low back pain. The study will involve adult participants diagnosed with neuropathic pain according to established criteria. Eligible participants will be randomized into three groups to receive either PEA Phytosome® supplementation as two different doses or a placebo for a specified period. Data collection will include demographic information, baseline pain intensity, quality of life assessments, and functional outcomes. The primary endpoint will be the reduction in pain intensity, while secondary endpoints will include improvements in quality of life and functional capacity. Safety and tolerability of the supplement will also be assessed. This trial seeks to provide robust clinical evidence of the potential pharmacological effect of PEA's Phytosome® as a potential adjunctive treatment for neuropathic low back pain.

Detailed description

Neuropathic low back pain arises from nerve damage or dysfunction, leading to chronic pain characterized by burning, tingling, or shooting sensations. This condition significantly impacts quality of life and is often refractory to conventional treatments. Palmitoylethanolamide (PEA) is an endogenous lipid mediator known for its anti-inflammatory, analgesic, and neuroprotective properties. PEA exerts its effects by modulating the endocannabinoid system and reducing the activation of mast cells and glial cells, which play a crucial role in chronic pain mechanisms. Its potential as a therapeutic agent for neuropathic pain has been demonstrated in preclinical and clinical studies, making it a promising candidate for managing neuropathic low back pain. In the present randomized, double-blind, placebo-controlled, parallel-group clinical trial, the investigators aim to evaluate the therapeutic effect of a novel bioavailable oral formulation of PEA's Phytosome® in the management of neuropathic low back pain in healthy adult population.

Interventions

DIETARY_SUPPLEMENT300 mg Palmitoylethanolamide (PEA) Phytosome®

Oral supplement intake

DIETARY_SUPPLEMENT450 mg Palmitoylethanolamide (PEA) Phytosome®

Oral supplement intake

OTHERControl group

Placebo

Sponsors

Liaquat University of Medical & Health Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy adults, both Male or female aged ≥ 18 years and ≤ 80 years; * Diagnosed with neuropathic lower back pain for at least 3 months, as confirmed by clinical evaluation and DN4 (neuropathic pain 4 questions) screening questionnaire with score ≥4. * Pain intensity score ≥ 5 measured by NRS (Numerical Rating Scale) score, over the past week. * Willingness to adhere to study protocol, including visits, assessments, and self-reporting of symptoms. * Ability to provide informed consent and comply with study requirements.

Exclusion criteria

* Known intolerance or allergy to any component of the tested nutraceuticals * Presence of acute systemic disease * Presence of significant organic pathology * Current or past history of alcohol or drug abuse * History of malignancy within the past 5 years * Any significant concomitant disease or clinical condition that could compromise participant safety or interfere with study completion * Women of childbearing potential not using reliable contraceptive methods * Pregnancy or breastfeeding * Severe psychiatric disorders (e.g., major depression, schizophrenia) that could affect pain perception or adherence. * Inability to adhere to the study requirements due to lifestyle, transportation, or cognitive impairment. * Use of other cannabinoid-based therapies, investigational drugs, or concurrent participation in another clinical trial. * Dependence on opioid analgesics or recent opioid use that may interfere with pain assessment. * Current use of other supplements with potential anti-inflammatory or analgesic effects, including Omega-3 Fatty Acids, Turmeric/Curcumin, Glucosamine and Chondroitin, Boswellia Serrata, Methylsulfonylmethane.

Design outcomes

Primary

MeasureTime frameDescription
Supplement effect on neuropathic low back symptoms pain as experienced by the patients8 weeksChange in The Douleur Neuropathique 4 (DN4) questionnaire score, a 10-item, clinician-administered tool used to identify neuropathic pain. A score of 4 or more out of 10 is the cut-off for defining the presence of neuropathic pain.
Supplement effect on intensity of neuropathic low back pain8 weeksChange in neuropathic pain intensity measured by the Numerical Rating Scale (NRS) score, with 0 representing no pain and 10 representing the worst pain.

Secondary

MeasureTime frameDescription
Supplement effect on patients degree of disability8 weeksChange in degree of disability due to neuropathic back pain assessed by Oswestry Disability Index (ODI) questionnaire. A score of 0-20% indicates minimal disability, 21-40% moderate disability, 41-60% severe disability, 61-80% crippled, and 81-100% bedridden or completely disabled.
Supplement effect on patients quality of life8 weeksShort Form Health Survey 12 (SF-12) questionnaire score. The SF-12 questionnaire assesses quality of life through 12 items, producing two summary scores: the Physical Component Summary (PCS) and the Mental Component Summary (MCS). Higher scores on both components indicate better physical and mental health, respectively.
Supplement effect on patients sleep quality8 weeksChange in patients sleep quality as measured by the Pittsburgh Sleep Quality Index (PSQI) score. A score of 5 or higher suggests clinically significant sleep disturbances.
Change in the number of times the rescue Non-steroidal anti-inflammatory drugs (NSAIDs) needed per week8 weeksChange in the weekly NSAIDs doses intake

Countries

Pakistan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026