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CompletedNCT06927934Updated Apr 15, 2025

Postmarketing Multicenter Study of Intra-Articular DIART ONE / EASYGO ONE for Knee Osteoarthritis

An observational study in Knee Osteoarthritis, Osteoarthritis of the Knee and Degenerative Joint Disease, sponsored by Yuria-Pharm. Completed at 1 site in Ukraine. Open to participants aged 21 Years and older. Per ClinicalTrials.gov, last updated 2025-04-15.

Sponsored by Yuria-Pharm · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
55
Ages
21 Years and older
Sex
All
01

Study summary

This study looked at how safe and effective a hyaluronic acid-based injection (called DIART ONE or EASYGO ONE) is for people with knee osteoarthritis. The injection helps replace the natural fluid in the knee joint to reduce pain and improve movement. Patients received one injection, and their symptoms were tracked over 6 months using phone calls and clinic visits. The goal was to see how much pain and joint function improved, and to check for any side effects.

Read the detailed description

This was a post-marketing, observational clinical study designed to evaluate the safety, tolerability, and effectiveness of a single intra-articular injection of a stabilized hyaluronic acid-based medical device, marketed under the names DIART ONE (in Ukraine) and EASYGO ONE (in Poland). The study focused on adults diagnosed with knee osteoarthritis, a common joint disease that causes pain, stiffness, and reduced mobility due to the breakdown of joint cartilage and decreased synovial fluid.

A total of 55 participants were enrolled across multiple centers. Each participant received one injection of the investigational product into the affected knee. The specific formulation (either 20 mg/mL - 2 mL or 30 mg/mL - 3 mL) was selected by the treating physician based on clinical needs and product availability.

The primary goal of the study was to assess the change in pain levels 3 months after injection, using the WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index) pain subscale, a validated questionnaire used to evaluate joint pain. Secondary outcomes included changes in pain at other time points (1, 2, 4, 5, and 6 months), as well as changes in joint stiffness and physical function.

Participants were monitored over a 6-month period through a mix of in-person and phone follow-ups. Adverse events, including any side effects related to the product or injection, were documented and analyzed.

02

Conditions studied

  • Knee Osteoarthritis
  • Osteoarthritis of the Knee
  • Degenerative Joint Disease

Keywords

  • Hyaluronic acid
  • Intra-articular injection
  • DIART ONE
  • EASYGO ONE
  • Synovial fluid replacement
  • Joint pain
  • Single-arm study
  • Osteoarthritis treatment
  • Knee joint mobility
  • Degenerative joint disease
  • Diaco Biofarmaceutici
  • Yuria-Pharm
03

In context

Osteoarthritis

4,398 studies on the registry are indexed under Osteoarthritis; 582 are open to participants now.

This study's enrollment of 55 is below the median of 100 across 791 observational studies indexed under Osteoarthritis.

Browse Osteoarthritis studies →

Lead sponsor

Yuria-Pharm is the lead sponsor of 7 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The study population consisted of adult men and women aged 21 years and older with radiographically confirmed knee osteoarthritis (Kellgren-Lawrence grade 2-4). Participants were eligible if they were prescribed a single intra-articular injection of stabilized hyaluronic acid (DIART ONE or EASYGO ONE) as part of routine clinical care for synovial fluid deficiency. All participants had a Body Mass Index (BMI) between 18.5 and 35 kg/m². Individuals with other joint diseases, recent joint surgery, infections, or contraindications to hyaluronic acid were excluded.

Inclusion criteria

  • Age ≥ 21 years.
  • Body Mass Index (BMI) ≥ 18.5 kg/m².
  • Body Mass Index (BMI) \< 35 kg/m².
  • Presence of trauma or degenerative diseases (e.g., osteoarthritis) confirmed by radiographic imaging (Kellgren-Lawrence score 2-4).
  • The subject is prescribed an injection of stabilized hyaluronic acid (DIART ONE 20 mg/mL - 2 mL or 30 mg/mL - 3 mL) for temporary replacement of synovial fluid in the knee joint.
  • Signed written informed consent to participate in the study.

Exclusion criteria

Exclusion Criteria:

  • Age \< 21 years.
  • Body Mass Index (BMI) \< 18.5 kg/m².
  • Body Mass Index (BMI) ≥ 35 kg/m².
  • Pregnancy or lactation.
  • No radiographic confirmation of osteoarthritis (Kellgren-Lawrence score 0-1).
  • Known hypersensitivity to hyaluronic acid, its metabolites, or excipients in the injectable implant.
  • Increased bleeding tendency.
  • Injury or infection at the injection site.
  • Confirmed infectious joint disease.
  • Systemic connective tissue diseases (e.g., active rheumatoid arthritis, ankylosing spondylitis).
  • Non-osteoarthritis arthritis.
  • Planned total knee joint replacement.
  • Gait disorders of neurological origin.
  • Intra-articular hyaluronic acid injection in the study knee within 3 months prior to enrollment.
  • Surgery or orthopedic intervention on the study knee in the last 3 months.
  • Cancer
  • Decompensated diabetes mellitus.
  • Hematological diseases.
  • Inability or unwillingness to comply with study procedures.
  • Language barriers that prevent understanding of the informed consent form.
  • Any other condition deemed by the investigator to preclude participation.
  • Participation in another clinical study.
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
55 participants (actual)
Patient registry
No
Biospecimen retention
Samples without dna
06

What researchers measure

Primary outcomes

  1. Change in the WOMAC Pain Subscale Score at 3 Months

    Mean change from baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain subscale score (5-point Likert-type scale, range 0-20) at 3 months after a single intra-articular injection of hyaluronic acid.

    Time frame: 3 months after injection (Day 90 ± 5 days)

Secondary outcomes

  1. Change in the Total WOMAC Score at 1, 2, 3, 4, 5, and 6 Months

    Mean change from baseline in the total WOMAC index score (Likert-type scale, total range 0-96: pain = 0-20, stiffness = 0-8, physical functioning = 0-68) at multiple time points following injection.

    Time frame: 1, 2, 3, 4, 5, and 6 months after injection

07

Study locations

1 site
  • Pharmaxi Clinical Research LLC
    Kyiv, 02192, Ukraine
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 15, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06927934
Lead sponsor
Yuria-Pharm
Collaborators
Pharmaxi Clinical Research LLC
Responsible party
Sponsor
First posted
Apr 15, 2025
Start date
Aug 14, 2021
Primary completion
Jun 6, 2022
Completion
Jun 27, 2022
Last update
Apr 15, 2025

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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