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Micronized and Ultramicronized Palmitoylethanolamide in Fibromyalgia Patients

Efficacy and Tolerability of Micronized and Ultramicronized Palmitoylethanolamide in Fibromyalgia Patients: A Double-blind, Randomized, Placebo-controlled Clinical Trial

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04488926
Enrollment
21
Registered
2020-07-28
Start date
2020-07-16
Completion date
2022-05-02
Last updated
2023-09-07

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

Conditions

Fibromyalgia

Brief summary

The onset of chronic Fibromyalgia symptomatology is due to central alterations, together with peripheral neuroimmune modifications. Using positron emission tomography (PET), it has been observed for the first time that fibromyalgia patients have a high activation of microglial cells compared to normal subjects. Experimental evidence in neuroinflammation models in vitro and in vivo have demonstrated the anti-inflammatory and neuroprotective effect of Palmitoylethanolamide (PEA), effects confirmed by observational clinical investigations conducted in patients with fibromyalgia in which micronized and ultra-micronized Palmitoylethanolamide (mPEA and umPEA) reduced the intensity of pain improving the quality of life. The aim of this study is to investigate the efficacy and tolerability of PEA-m + PEA-um administered as an add-on therapy with a double-blind, randomized, placebo-controlled clinical investigation.

Interventions

DIETARY_SUPPLEMENTmicronized and ultra-micronized Palmitoylethanolamide (mPEA and umPEA, 300mg + 600mg) microgranules

Micronized and ultra-micronized Palmitoylethanolamide is on the market in Italy as a Food for Special Medical Purposes

OTHERPlacebo microgranules 1800mg

Placebo was prepared to be indistinguishable from color and flavor from the Product

DRUGStandard Therapy

(antidepressants, anticonvulsants, muscle relaxants, weak opiates, etc..) consolidated for at least 3 months

DRUGRescue Drug

Use as needed allowed

Sponsors

Azienda Ospedaliera Universitaria Integrata Verona
CollaboratorOTHER
Epitech Group SpA
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of Fibromyalgia according to the criteria of the American College of Rheumatology 2016 (symptoms for at least 3 months, Widespread Pain Index (WPI) ≥ 7 and Symptom Severity (SS) ≥ 5 or WPI 4-6 and SS ≥ 9) * Pain intensity assessed on the Visual Analogue Scale (VAS) ≥ 40 * PEA-naive patients * Patients who agree to sign informed consent

Exclusion criteria

* Values of WPI \<7 and SS \<5 * Pain intensity assessed on the Visual Analogue Scale (VAS) \<40 * Patients who have already taken PEA in the past * Allergic or hypersensitive subjects to the product and / or one or more of its excipients * Patients who refuse to sign informed consent

Design outcomes

Primary

MeasureTime frameDescription
Fibromyalgia symptoms assessed by Fibromyalgia Impact Questionnaire Revised90 daysChange of Fibromyalgia symptoms

Secondary

MeasureTime frameDescription
Health assessed by Short form-12 Health Survey90 daysChange in Health at the end of treatment
Sleep Disorders assessed by Pittsburgh Sleep Quality Index90 daysChange in sleep disorders at the end of treatment
Pain Intensity assessed by Visual Analogue Scale90 daysChange of Visual Analogue Scale every 30 days (0: no pain - 100 mm: maximum pain)
Incidence of Adverse Events90 daysMonitoring of adverse event
Blood test90 daysClinically significant changes in blood test
Rescue Drugs consumption assessed by a daily diary90 daysChange in rescue drugs consumption during the entire period

Countries

Italy

Outcome results

None listed

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