Safety of Use and Efficacy of Pandora for Patients Suffering From Gonarthrosis (PANDORA2)
PANDORA2
Prospective, Multicenter, Randomized, Parallel Groups Study Comparing the Safety and the Efficacy of the Administration of One Intra-articular Injection of 4.8 ml (HO-1) or Three Intra-articular Injections of 2.2 ml (HS-3) of Pandora Gel to One Intra-articular Injection of 2.5 ml (SINOVIAL®ONE), in Symptomatic Gonarthrosis
1 other identifier
interventional
252
2 countries
35
Brief Summary
The knee osteoarthritis is a frequent degenerative condition that mainly affects subjects over 60, population often weakened by numerous comorbidities and concomitant treatments, justifying the development of new therapies. The viscosupplementation is a symptomatic treatment for knee osteoarthritis ; the objective of this intra-articular injection of hyaluronic acid is to reduce knee pain and improve mobility. In practice, there are two protocols to administer viscosupplementation : in a single injection or in three injections performed weekly. The present clinical investigation has the objective to evaluate the safety and efficacy of use of Pandora, a hyaluronic acid associated with tranexamic acid, in a single injection (HO-1) or in three injections performed weekly (HS-3), compared to a referred and commercialized medical device.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable knee-osteoarthritis
Started Oct 2023
Typical duration for not_applicable knee-osteoarthritis
35 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 28, 2023
CompletedFirst Posted
Study publicly available on registry
August 7, 2023
CompletedStudy Start
First participant enrolled
October 18, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 13, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
November 13, 2025
CompletedDecember 22, 2025
December 1, 2025
2.1 years
July 28, 2023
December 15, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
To evaluate the efficacy of the two medical devices containing Pandora gel, HO-1 and HS-3, on walking pain in the target knee, compared to the SINOVIAL® ONE.
Variation of the WOMAC A1 score "walking pain" of the target knee in repeated measures (weeks 4,12 and 26), between the first or single injection and the potential injection at week 26.
6 months
Secondary Outcomes (16)
To evaluate the efficacy of viscosupplementation by HO-1 and HS-3 on walking pain of the target knee between day 1 and week 12.
3 months
To evaluate the efficacy of viscosupplementation by HO-1 and HS-3 on the pain of the target knee at weeks 4, 12 and 26 and week 12 as well as week 52 for patients who didn't require an injection at week 26.
12 months
To evaluate the efficacy of viscosupplementation by HO-1 and HS-3 on the function of target knee at weeks 4, 12, 26 as well as week 52 for patients who didn't require an injection at week 26.
12 months
To evaluate the efficacy of viscosupplémentation by HO-1 and HS-3 on the analgesic drug consumption at weeks 4, 12, 26 as well as week 52 for patients who didn't require an injection at week 26.
12 months
To determine the number (and percentage) of patients "OMERACT-OARSI responsive" at weeks 4,12,26 as well as week 52 for patients who didn't require an injection at week 26.
12 months
- +11 more secondary outcomes
Study Arms (3)
Medical Device : HO-1
EXPERIMENTALSingle injection Hyaluronic acid associated with tranexamic acid 4.8 ml will be injected in one time Intra-articular single injection * Both groups will receive their first injection after a selection visit ; first injection will be planned between 7 days to 30 days after to confirm the enrollment. * The injection will be performed at Day 1.
Medical Device : HS-3
EXPERIMENTALThree injections Hyaluronic acid associated with tranexamic acid 2.2 ml will be injected in three times (one injection per week) Intra-articular single injection * Both groups will receive their first injection after a selection visit ; first injection will be planned between 7 days to 30 days after to confirm the enrollment. * The injections will be performed at Days 1, 8 and 15.
Medical Device : SINOVIAL® ONE
ACTIVE COMPARATORHyaluronic acid 2.5 ml will be injected in one time Intra-articular single injection * Both groups will receive their first injection after a selection visit ; first injection will be planned between 7 days to 30 days after to confirm the enrollment. * The injection will be performed at Day 1.
Interventions
The injection will be performed at Day 1.
The three injections will be performed at Days 1, 8 and 15.
The injection will be performed at Day 1.
Eligibility Criteria
You may qualify if:
- Patient aged between 35 and 85 years.
- Body mass index (BMI) \< 35 kg.m2.
- Medial or lateral femoro-tibial knee osteoarthritis, diagnosed according to the American College of Rheumatology criteria, radiological stage 2 and 3 according to the Kellgren-Lawrence criteria modified by Felson on an X-ray, of the knee in extension, less than 6 months old.
- Knee osteoarthritis responsible for walking pain in the target knee, assessed between 4 and 8 inclusive on an 11 points numerical scale (0 = none to 10 = extreme).
- Unilateral or bilateral knee osteoarthritis if the walking pain in the contralateral knee is \< 3 based on 11 points numerical scale (0-10).
- Ambulatory patient able to walk 50 meters without a cane, crutch or walker.
- Patient giving his informed consent.
- Patient agreeing to follow-up study visits.
- Patient affiliated to the health social security system or beneficiary of such plan.
- Patient requiring viscosupplementation according to the investigator.
You may not qualify if:
- Patient presenting knee osteoarthritis without impingement joint space narrowing of the femoro-tibial compartment (modified Kellgren stage 0-1) or with complete impingement joint space narrowing on the knee weight-bearing radiograph in extension (modified Kellgren stage 4).
- Patient with bilateral symptomatic gonarthrosis with walking pain of contralateral knee \> 3.
- Patient with stage 4 patello-femoral osteoarthritis associated with femoro-tibial osteoarthritis.
- Patient with a flare of osteoarthritis of the target or contralateral knee.
- Patients with a skin condition or a wound next to or near the injection site.
- Patients refusing to discontinue treatment with NSAIDs or cox-2 inhibitors during the follow-up period.
- Patient receiving treatment with level III analgesics (strong opioids).
- Patient with hypersensitivity to hyaluronic acid or tranexamic acid.
- Patient with a history of seizures.
- Patient with Fibromyalgia.
- Patient with an active neurological or vascular musculoskeletal disorder (such as rheumatoid arthritis, lupus, psoriatic arthritis, spondyloarthritis or any other autoimmune disease, Paget's disease, gout, coxopathy, tendinopathy of the lower limb, sciatic or crural radiculalgia) which, in the opinion of the investigator, would be likely to disrupt regular monitoring and/or interfere with the measurement of evaluated knee treatment efficacy.
- Patient with serious hemostasis disorders, venous or lymphatic stenosis of the lower limbs, history of thromboembolic disease - phlebitis or pulmonary embolism - or a high risk of thromboembolism.
- Patients with renal insufficiency.
- Patients with all evolving general condition as cardiac, digestive, endocrine, haematological or broncho-pulmonary which, in the opinion of the investigator, would be likely to disrupt regular monitoring and/or interfere with the measurement of evaluated knee treatment efficacy.
- Breastfeeding patient, pregnant or wishing to be during the 12 months of the study.
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (35)
Cabinet de Rhumatologie
Annecy, France
Centre de Chirurgie Orthopédique du Beaujolais
Arnas, France
Centre de Médecine du Sport du Beaujolais
Arnas, France
Cabinet de Rhumatologie
Bagnols-sur-Cèze, France
Cabinet de Rhumatologie La Savoureuse
Belfort, France
Hôpital Nord Franche Comté
Belfort, France
Cabinet de Rhumatologie de Palente
Besançon, France
Centre de Rhumatologie Nord Isère
Bourgoin, France
Cabinet de Rhumatologie
Castelnaudary, France
Polyclinique des Alpes du Sud
Gap, France
Cabinet de Rhumatologie
Gourdon, France
Centre Médical Dulac
La Ciotat, France
Cabinet Médical Tilsitt
Lyon, France
Centre Orthopédique Santy
Lyon, France
Clinique de la Sauvegarde
Lyon, France
Clinique Saint Charles
Lyon, France
Centre Médico-Social du Lac
Mantes-la-Jolie, France
Cabinet Médical Borely Mermoz
Marseille, France
Cabinet de Rhumatologie
Mâcon, France
Cabinet Médical
Montélimar, France
Groupe Médical Adhémar
Montélimar, France
Cabinet de Rhumatologie
Montpellier, France
Centre Médical Saint Roch
Montpellier, France
Cabinet Médical Pluridisciplinaire Wallach
Mulhouse, France
Cabinet de Rhumatologie
Nîmes, France
Clinique du Ter
Ploemeur, France
Cabinet Médical
Puyricard, France
Cabinet de Rhumatologie
Roanne, France
Cabinet Médical
Saint-Paul-lès-Dax, France
Groupe Médical Spécialisé - Le Premium
Strasbourg, France
Groupe Hospitalier de la Haute Saône - Hôpital de Vesoul
Vesoul, France
Cabinet de Rhumatologie
Villeurbanne, France
Cabinet de Rhumatologie
Viry-Châtillon, France
Pôle de santé des Sept Chemins
Vourles, France
IM2S
Monaco, Monaco
Related Publications (8)
Sellam J, Courties A, Eymard F, Ferrero S, Latourte A, Ornetti P, Bannwarth B, Baumann L, Berenbaum F, Chevalier X, Ea HK, Fabre MC, Forestier R, Grange L, Lellouche H, Maillet J, Mainard D, Perrot S, Rannou F, Rat AC, Roux CH, Senbel E, Richette P; French Society of Rheumatology. Recommendations of the French Society of Rheumatology on pharmacological treatment of knee osteoarthritis. Joint Bone Spine. 2020 Dec;87(6):548-555. doi: 10.1016/j.jbspin.2020.09.004. Epub 2020 Sep 12.
PMID: 32931933BACKGROUNDBalazs EA. Viscosupplementation for treatment of osteoarthritis: from initial discovery to current status and results. Surg Technol Int. 2004;12:278-89.
PMID: 15455338BACKGROUNDConcoff A, Sancheti P, Niazi F, Shaw P, Rosen J. The efficacy of multiple versus single hyaluronic acid injections: a systematic review and meta-analysis. BMC Musculoskelet Disord. 2017 Dec 21;18(1):542. doi: 10.1186/s12891-017-1897-2.
PMID: 29268731BACKGROUNDDiracoglu D, Tuncay TB, Sahbaz T, Aksoy C. Single versus multiple dose hyaluronic acid: Comparison of the results. J Back Musculoskelet Rehabil. 2016 Nov 21;29(4):881-886. doi: 10.3233/BMR-160714.
PMID: 27257981BACKGROUNDBhadra AK, Altman R, Dasa V, Myrick K, Rosen J, Vad V, Vitanzo P Jr, Bruno M, Kleiner H, Just C. Appropriate Use Criteria for Hyaluronic Acid in the Treatment of Knee Osteoarthritis in the United States. Cartilage. 2017 Jul;8(3):234-254. doi: 10.1177/1947603516662503. Epub 2016 Aug 10.
PMID: 28618868BACKGROUNDLi J, Liu R, Rai S, Ze R, Tang X, Hong P. Intra-articular vs. intravenous administration: a meta-analysis of tranexamic acid in primary total knee arthroplasty. J Orthop Surg Res. 2020 Dec 2;15(1):581. doi: 10.1186/s13018-020-02119-1.
PMID: 33267906BACKGROUNDNg W, Jerath A, Wasowicz M. Tranexamic acid: a clinical review. Anaesthesiol Intensive Ther. 2015;47(4):339-50. doi: 10.5603/AIT.a2015.0011. Epub 2015 Mar 23.
PMID: 25797505BACKGROUNDJules-Elysee KM, Tseng A, Sculco TP, Baaklini LR, McLawhorn AS, Pickard AJ, Qin W, Cross JR, Su EP, Fields KG, Mayman DJ. Comparison of Topical and Intravenous Tranexamic Acid for Total Knee Replacement: A Randomized Double-Blinded Controlled Study of Effects on Tranexamic Acid Levels and Thrombogenic and Inflammatory Marker Levels. J Bone Joint Surg Am. 2019 Dec 4;101(23):2120-2128. doi: 10.2106/JBJS.19.00258.
PMID: 31800425BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Patrick Sac-Epee
Labrha
- PRINCIPAL INVESTIGATOR
Jean-Charles Balblanc, Dr
Hôpital Nord Franche-Comté, HNFC
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Masking Details
- Single blind
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 28, 2023
First Posted
August 7, 2023
Study Start
October 18, 2023
Primary Completion
November 13, 2025
Study Completion
November 13, 2025
Last Updated
December 22, 2025
Record last verified: 2025-12
Data Sharing
- IPD Sharing
- Will not share