Evaluation of safety and efficacy of Hylan G-F 20 (Synvisc-One®) in patients with knee osteoarthritis in clinical practice
Bibliographic record
Abstract
Combined therapy of osteoarthritis (OA) includes intra-articular injections of hyaluronic acid. A prospective observational multicenter noncomparative study was conducted in compliance with routine clinical practice in patients with knee OA IIII stages in order to assess 1-year long-term safety and efficacy of Hylan G-F 20 (Synvisc-One, one injection of 6 mL). Patients came for observation at 3, 6, and 12 months after intra-articular injection of Hylan G-F 20. The primary objective of the study was evaluation of pain severity while walking and rest by using the WOMAC VA3.1 (Western Ontario and McMaster Universities Osteoarthritis Index) scale after 26 and 52 weeks compared to baseline. Quality of life was measured by EQ-5D (EuroQuality of Lifefive dimensions); patients general condition was measured by PTGA (Patient Global Assessment) and COGA (Clinical Observer Global Assessment). Results of the study were based on data of 121 patients (79.51% women, 21.49% men), mean age 62.97 12.47 years. Positive clinical response was observed in 12 months (52 weeks) after Hylan GF-20 administration: pain severity versus baseline was decreased by 48.92% (p 0.001) as per WOMAC A, stiffness in the joints versus baseline by 49.72% (p 0.001) as per WOMAC B, difficulties in the daily life versus baseline by 41.54% (p 0.001) as per WOMAC C. Seven adverse events were detected in five patients (4%), and one serious adverse event (cardiovascular abnormalities) was noticed during the entire study that was unrelated to the study drug. The extent of clinical response did not correlate with the stage of osteoarthritis. The quality of life was improved by 35.28% (p 0.001) according to the questionnaire EQ-5D. The general condition of the patients was improved by 37.50% (p 0.001) as per COGA and 42,86% (p 0.001) as per PTGA. No patients were discontinued the study due to adverse event or any other reasons. Intra-articular injections of Hylan G-F 20 6 mL were associated with acceptable safety and efficacy, and the therapeutic effect was observed up to 52 weeks.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".