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Intra-Articular Adelmidrol 2%/Hyaluronic Acid 1% With or Without m/umPEA, in Knee Pain Due to Joint Degeneration.

25 juni 2026 uppdaterad av: Universita di Verona

Efficacy of Intra-articular Treatment With Adelmidrol 2% / Hyaluronic Acid 1%, With or Without m/umPEA, in Knee Pain Due to Joint Degeneration: a Bicentric, Prospective, Randomized Study.

Degenerative knee joint diseases are characterized by chronic pain, inflammation, and functional impairment. In these conditions, mast cell density in the synovial membrane is increased, resulting in an excessive release of biological mediators involved in key mechanisms of neuroinflammation and in hyaluronic acid depolymerisation. Adelmidrol acts as a preventive antioxidant due to its radical scavenging activity, thus protecting hyaluronic acid from oxidative degradation and reducing mast cell degranulation. Furthermore, a reduction in endogenous Palmitoylethanolamide (PEA) levels also contributes to joint neuroinflammation and disease progression; therefore, its exogenous supplementation may represent a valuable supportive strategy.

The objective of this clinical investigation is to compare the efficacy of intra-articular adelmidrol/hyaluronic acid treatment alone versus the same intra-articular treatment combined with oral micronized /ultramicronized PEA in patients with knee joint degeneration due to osteoarthritis or rheumatoid arthritis.

Studieöversikt

Studietyp

Interventionell

Inskrivning (Beräknad)

80

Fas

  • Inte tillämpbar

Kontakter och platser

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Studiekontakt

Studieorter

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  • Age ≥ 40 years
  • Male or female
  • Diagnosis of unilateral or bilateral knee joint degeneration due to osteoarthritis or rheumatoid arthritis, Kellgren-Lawrence grade II-III
  • Duration of knee pain ≥ 6 months
  • Baseline WOMAC score ≥ 20
  • Drug therapy stabilized for at least 3 months in the case of patients with rheumatoid arthritis
  • Naïve to palmitoylethanolamide treatment
  • Signed informed consent

Exclusion Criteria:

  • Severe progressive systemic diseases
  • Contraindications to intra-articular knee injections
  • Intra-articular knee injections within 3 months prior to enrollment
  • Knee surgery within 6 months prior to enrollment
  • Systemic treatment with chondroprotectors within 1 month prior to enrollment
  • Systemic corticosteroid treatment within 1 month prior to enrollment
  • Chronic Non-Steroidal Anti-Inflammatory Drugs (NSAID) therapy
  • Pregnancy or breastfeeding
  • Known hypersensitivity to study treatments

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Aktiv komparator: Group A (Hyadrol®)
Participants receive intra-articular injections of adelmidrol 2% / hyaluronic acid 1% (Hyadrol®) administered once weekly for three consecutive weeks.
Ultrasound-guided intra-articular knee injection, 2 mL per injection, administered once weekly for three weeks.
Andra namn:
  • Hyadrol®
Experimentell: Group B (Hyadrol® + m-/um-PEA)
Participants receive intra-articular injections of adelmidrol 2% / hyaluronic acid 1% (Hyadrol®) administered once weekly for three consecutive weeks, combined with oral micronized/ultramicronized palmitoylethanolamide (m-/um-PEA) (Normast® MPS), one sachet twice daily for 6 weeks, followed by 1 sachet daily for 8 weeks.
Ultrasound-guided intra-articular knee injection, 2 mL per injection, administered once weekly for three weeks.
Andra namn:
  • Hyadrol®
Oral administration of m-/um-PEA, one sachet twice daily for 6 weeks, followed by 1 sachet daily for 8 weeks.
Andra namn:
  • Normast® MPS

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in joint symptoms and function
Tidsram: Baseline (T0) and 1 month after treatment (T3)

Evaluation of degenerative joint disease symptoms and function assessed by Western Ontario and McMaster Universities (WOMAC) scale, a self-report questionnaire consisting of 24 questions divided in pain (5 items), joint stiffness (2 items) and functional limitations (17 items). Each question has 5 possible answers, evaluated on a Likert scale, from 0 (none) to 4 (extreme):

  • pain: score from 0 to 20;
  • joint stiffness: score from 0 to 8;
  • functional limitations: score from 0 to 68.

The sum of the individual scores results in an overall score from 0 to 96 (96 indicates severe disability).

Baseline (T0) and 1 month after treatment (T3)

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in WOMAC score
Tidsram: Baseline (T0), 1 week (T1), 2 weeks (T2), 3 months after treatment (T4) and 6 months after treatment (T5)
Evaluation of degenerative joint disease symptoms and function assessed by Western Ontario and McMaster Universities (WOMAC) scale, a self-report questionnaire consisting of 24 questions divided in pain (5 items), joint stiffness (2 items) and functional limitations (17 items).
Baseline (T0), 1 week (T1), 2 weeks (T2), 3 months after treatment (T4) and 6 months after treatment (T5)
Change in pain intensity
Tidsram: Baseline (T0), 1 week (T1), 2 weeks (T2), 1 month after treatment (T3), 3 months after treatment (T4) and 6 months after treatment (T5)
Evaluation of pain intensity assessed by the Visual Analogue Scale (VAS) scored from 0 mm to 100 mm, where 0 indicates 'no pain' and 100 corresponds to 'the worst pain ever possible'. The higher the score, the more severe the pain.
Baseline (T0), 1 week (T1), 2 weeks (T2), 1 month after treatment (T3), 3 months after treatment (T4) and 6 months after treatment (T5)
Change in patients' quality of life
Tidsram: Baseline (T0), 1 month after treatment (T3), 3 months after treatment (T4) and 6 months after treatment (T5)
Quality of Life evaluated by the 12-Item Short Form Health Survey (SF-12). The SF-12 is a self-reported health questionnaire. The score produces two summary measures: a mental (MCS-12) and a physical component score (PCS-12). The PCS-12 score is derived from the subdimensions of general health, physical functioning, role physical, and bodily pain, while the MCS-12 score is derived from the subdimensions of social functioning, role emotional, mental health, and energy. Scores range from 0 to 100, with higher scores indicating better physical and mental health functioning.
Baseline (T0), 1 month after treatment (T3), 3 months after treatment (T4) and 6 months after treatment (T5)
Incidence of Treatment-Related Adverse Events (Safety and Tolerability)
Tidsram: From first treatment administration up to 6 months after treatment
Treatment safety is assessed by monitoring the incidence and severity of adverse events immediately after injections and throughout the study.
From first treatment administration up to 6 months after treatment
Change in analgesic consumption
Tidsram: Baseline (T0), 1 week (T1), 2 weeks (T2), 1 month after treatment (T3), 3 months after treatment (T4) and 6 months after treatment (T5)
Analgesic consumption is evaluated by the Cumulative Analgesic Consumption Score (CACS), an index that quantifies the overall use of analgesic medications, taking into account the type, dosage, and frequency of the different analgesics administered.
Baseline (T0), 1 week (T1), 2 weeks (T2), 1 month after treatment (T3), 3 months after treatment (T4) and 6 months after treatment (T5)
Change of patients' self-assessed health status
Tidsram: 1 month after treatment (T3), 3 months after treatment (T4) and 6 months after treatment (T5)
The patient's global health status is evaluated through the Likert Patient Global Impression of Change (PGIC) scored in 7 points (from 1, very much improved to 7, very much worse).
1 month after treatment (T3), 3 months after treatment (T4) and 6 months after treatment (T5)

Samarbetspartners och utredare

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Utredare

  • Huvudutredare: Enrico Polati, Università di Verona, Dipartimento di Scienze Chirurgiche Odontostomatologiche e Materno-Infantili

Publikationer och användbara länkar

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Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

1 juni 2026

Primärt slutförande (Beräknad)

1 juni 2027

Avslutad studie (Beräknad)

1 juni 2027

Studieregistreringsdatum

Först inskickad

25 juni 2026

Först inskickad som uppfyllde QC-kriterierna

25 juni 2026

Första postat (Faktisk)

2 juli 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

2 juli 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

25 juni 2026

Senast verifierad

1 juni 2026

Mer information

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