E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Diaphyseal and/or metaphysodiaphyseal fractures (femur, tibia, humerus) with status of non-union |
Fractures diaphysaires et/ou métaphyso-diaphysaires (fémur, tibia, humérus) non consolidées |
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E.1.1.1 | Medical condition in easily understood language |
Long bones (femur, tibia, humerus) fractures with non-union |
Fractures des os longs (fémur, tibia, humérus) non consolidées |
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E.1.1.2 | Therapeutic area | Diseases [C] - Musculoskeletal Diseases [C05] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | SOC |
E.1.2 | Classification code | 10028395 |
E.1.2 | Term | Musculoskeletal and connective tissue disorders |
E.1.2 | System Organ Class | 10028395 - Musculoskeletal and connective tissue disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10017085 |
E.1.2 | Term | Fracture malunion |
E.1.2 | System Organ Class | 10028395 - Musculoskeletal and connective tissue disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To determine if the combined treatment of hBM-MSC+Biomaterial(G2) is superior to Iliac Crest Autologous Graft(G1) to obtain bone consolidation at 12 months after surgery of diaphyseal and/or metaphysodiaphyseal fractures (femur, tibia, humerus) with status of non-union (more than 9 months after the acute fracture) |
Déterminer si le traitement combiné de hBM-MSC + Biomatériau (G2) est supérieur à la greffe autologue de crête iliaque (G1) pour obtenir une consolidation osseuse (clinique et radiologique) 12 mois après la chirurgie de fractures diaphysaires et / ou métaphyso-diaphysaires (fémur, tibia, humérus) ayant un statut de non-consolidation (après plus de 9 mois depuis la fracture aiguë) |
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E.2.2 | Secondary objectives of the trial |
* Compare % bone consolidation between G1 and G2 arms at 6 and 24 months after surgery (m. aft. surg.) * Compare, G1 and G2 arms, at 6, 12 and 24 m. aft. surg., the following: - Radiological consolidation with REBORNE-scale - Pain w/ and w/o weight bearing - Rate of re-intervention in the callus - Complication rate - Assess safety of autologous hBM-MSCs - Physical & mental health status * Identify associated factors to bone consolidation (time from the acute fracture, type of prior-surgery, severity, and country) and * Determine if G2b is non-inferior to G2a to obtain radiological consolidation at 12 months after surgery. * Compare radiological consolidation, w/ REBORNE-Scale, between G2a and G2b arms at basal, 24 and 96 w. aft. surg. * Compare, between G2a and G2b arms, at 6, 12 and 24 m. aft. surg., the following: - % bone consolidation - Pain w/ and w/o weight bearing - Rate of re-intervention in the callus - Complication rate - Physical & mental health status |
* Comparer le % de consolidation entre G1 et G2 à 6 et 24 mois après la chirurgie (m.ap.chir.) * Comparer entre G1 et G2 à 6, 12 et 24 m.ap.chir. : - consolidation radiologique (REBORNE) - douleur avec et sans mise en charge. - taux de ré-intervention . - taux de complication. - sécurité des hBM-MSC autologues. - statutphysique et mental * Identifier les facteurs associés à la consolidation osseuse (délai depuis la fracture aiguë, type de chirurgie antérieure, gravité et pays). *Déterminer si G2b n'est pas inférieur à G2a pour obtenir une consolidation radiologique à 12 m.ap.chir. * Comparer le % de consolidation entre les bras G2a et G2b à 6 et 24 mois après la chirurgie (m.ap.chir.) * Comparer entre G2a et G2b à 6, 12 et 24 m.ap.chir. : - consolidation radiologique (REBORNE). - douleur avec et sans mise en charge. - taux de ré-intervention . - taux de complication. - état physique et mental |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
To be eligible to enter the study candidates must satisfy all of the following criteria: 1. Age 18 and older, both sexes 2. Traumatic isolated closed or open Gustilo I and II, IIIA and IIIB humerus, tibial or femur diaphyseal or metaphysodiaphyseal fracture with a status of atrophic, oligotrophic or normotrophic non-union. A non-union is defined as a fracture not healed at least 9 months after the originating trauma, that meets the following criteria (Weber 1986): ‐ Insufficient bone bridging to stabilize the fracture ‐ Insufficient bone biological activity in the fracture ‐ Failure of previous treatments
3. Able to understand, accept and sign informed consent 4. Medical health coverage 5. Able to understand and accept the study constraints. In case of doubts, particularly in elderly patients, a specific capacity test (e.g., Mini-mental State Examination, MMSE (Appendix 8)) will be performed. |
1. Âge 18 et plus, les deux sexes 2. Fracture traumatique isolée fermée ou ouverte Gustilo I et II, IIIA et IIIB humérus, tibia tibiale ou fémorale diaphysaire ou métaphysodiaphysaire avec statut de non-consolidation atrophique, oligotrophique ou normotrophique. Une non-consolidation est définie comme une fracture non guérie au moins 9 mois après le traumatisme d'origine, qui répond aux critères suivants (Weber, 1986): - Un pontage osseux insuffisant pour stabiliser la fracture - Activité biologique osseuse insuffisante dans la fracture - L'échec des traitements précédents
3. Capable de comprendre, d'accepter et de signer le consentement éclairé 4. Couverture médicale 5. Capable de comprendre et d'accepter les contraintes de l'étude. En cas de doute, en particulier chez les patients âgés, un test de capacité spécifique (par exemple, mini-examen de l'état mental, MMSE (Annexe 8)) sera effectué. |
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E.4 | Principal exclusion criteria |
1. Hypertrophic non-unions 2. Segmental bone loss requiring specific therapy (bone transport, vascularized graft, large structural allograft, megaprosthesis, etc) 3. Unrecovered vascular or neural injury 4. Other fractures causing interference with weight bearing 5. Visceral injuries or diseases interfering with callus formation (severe cranioencephalic trauma, etc.) 6. Active infection of any location and aetiology 7. Surgical contraindication of any cause 8. Pregnancy, breast feeding women and women who are of childbearing age and not practicing adequate birth control. The following methods are considered adequate: ‐ Combined hormonal contraception ‐ Injected hormonal contraception ‐ Implanted hormonal contraception ‐ Progesterone-only hormonal contraception associated with inhibition of ovulation ‐ Placement of an intrauterine device (IUD) ‐ Placement of intrauterine hormone-realising system (IUS) -Sexual abstinence 9. Malignant tumor (past history or concurrent disease)(except carcinoma in situ or basalioma in remission) 10. History of bone harvesting on iliac crest contraindicating new iliac crest bone graft harvesting or bone marrow collection 11. Insulin dependent diabetes 12. Any evidence (confirmed by PCR) of active infection with HIV, Hepatitis B or Hepatitis C infection 13. Any evidence of Syphilis 14. Known allergies to products involved in the production process of MSC 15. Corticoid or immunosuppressive therapy more than one week in the three months prior to study inclusion 16. Autoimmune inflammatory disease 17. Current treatment by biphosphonates not stopped three months prior to study inclusion 18. Impossibility to meet at the appointments for the follow up 19. Participation in another therapeutic trial in the previous 3 months 20. Second non-union in case of bilateral or multiple non-unions (only one non-union per patient will be included in the trial) |
1. Non-consolidations hypertrophiques 2. Perte osseuse segmentaire nécessitant une thérapie spécifique (transport osseux, greffe vascularisée, grande allogreffe structurelle, mégaprothèse, etc.) 3. Blessure vasculaire ou vasculaire non récupérée 4. Autres fractures causant des interférences avec le poids 5. Lésions viscérales ou les maladies qui interfèrent avec la formation de cal (traumatisme cranioencephalique sévère, etc.) 6. Infection active 7. Contre-indication chirurgicale de toute cause 8. Grossesse, allaitement maternel et les femmes en âge de procréer et n’étant pas sous contraception adéquate. Les méthodes suivantes sont considérées comme adéquate: contraception hormonale combinée; Contraception hormonale injectée; Contraception hormonale implantée; Contraception hormonale à la progestérone seule associée à une inhibition de l'ovulation; Mise en place d'un dispositif intra-utérin (DIU); Mise en place du système hormonal intra-utérin (SIU); Abstinence sexuelle 9. Tumeur maligne (antécédents ou maladie concomitante) (à l'exception du carcinome in situ ou du basaliome en rémission) 10. Historique de prélèvement osseux sur la crête iliaque contre-indiquant une greffe osseuse à partir de la crête iliaque nouvelle ou le prélèvement de moelle osseuse 11. Diabétique insulinodépendant 12. Toute preuve (confirmée par PCR) d'une infection active par le VIH, une hépatite B ou une infection à l'hépatite C ou une syphilis 14. Allergies connues aux produits impliqués dans le processus de production du MSC 15. Traitement de type corticoïde ou immunosuppresseur plus d'une semaine au cours des trois mois précédant l'inclusion dans l'étude 16. Maladie inflammatoire auto-immune 17. Traitement actuel par les biphosphonates, non arrêté trois mois avant l'inclusion de l'étude 18. Impossibilité de respecter les rendez-vous pour le suivi 19. Participation à un autre essai thérapeutique au cours des trois mois précédents 20. Deuxième non-consolidation en cas de non-consolidation bilatérale ou multiple (une seule non-consolidation par patient sera admise dans l'étude) |
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E.5 End points |
E.5.1 | Primary end point(s) |
The percentage of patients with bone consolidation (Yes/No) in the G1 (comparator) and G2 (experimental) treatment arms at 12 months after the surgery. A superiority test will compare this endpoint in both treatment arms. Each endpoint will be estimated as the number of bone consolidations in each arm, over the total number of treated patients in each arm. For this first primary endpoint, bone consolidation will be considered achieved when all three of the following criteria are met: a) Radiographic bone bridging: New bone formation across the fracture site visible in 3/4 cortices, on at least 3/4 views (Front views: Internal and external cortical; Lateral views: Anterior and Posterior cortical). b) Clinical healing: Pain equal or less than 3 in a Numeric Rating Scale (NRS, 0 to 10) for pain during full weight-bearing and without weight bearing. c) No further surgical intervention in the callus site: mayor surgery will be considered either as nail replacement, plate replacement, or replacement of all components of the previous surgery. |
Le critère de jugement principal est le pourcentage de consolidation osseuse (Oui / Non) dans le bras de traitement G1 (comparateur: autogreffe de crête iliaque) et G2 (expérimental: hBM-MSC) à 12 mois après la chirurgie. Les deux bras de traitement seront comparés avec un test de supériorité (delta ciblé de 20%). C'est le critère d'évaluation principal et il sera estimé comme le nombre de consolidation osseuse dans chaque bras, par rapport au nombre total de patients traités dans chaque bras. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
EFFICACY ENDPOINTS: ** G1/G2 arms - Percentage of patients with bone consolidation (Yes/No) in the G1 and G2 treatment arms at 6 and 24 months after surgery. Estimated as the number of bone consolidations in each arm, over the total number of treated patients in each arm. For this endpoint, bone consolidation was defined as previously established for the primary endpoint. - Radiological punctuation score using the REBORNE-Scale in the G1 and G2 treatment arms of treatment at 6, 12 and 24 months after surgery calculated in xR images (and/or CT for ratify purpose). - Pain scale value in the G1 and G2 treatment arms at basal baseline, 6, 12 and 24 months after surgery, using the Numeric Rating Scale (NRS) for pain (from 0 to 10). - Rate of reoperation in the callus site in G1 and G2 arms of treatment arms at 6, 12 and 24 months after surgery. - Average percentage of the Short Form-36 Health Survey at baseline, 6, 12 and 24 months after surgery.
** G2b/G2a arms: - Radiological score in the G2a (High dose of hBM-MSC+Biomaterial) and G2b (Low dose of hBM-MSC+Biomaterial) treatment arms at 12 months after surgery. This endpoint will be calculated using the REBORNE-Scale, which can obtain a score ranging from 0 to 1. The score will be calculated in xR images (and/or CT for ratify ratification purposes) using a specific formula. - Radiological score using the REBORNE-Scale in the G2a and G2b treatment arms at 6 and 24 months after surgery calculated in XR images (and/or CT for ratify purpose). - Percentage of bone consolidation (Yes/No) in the G2a and G2b treatment arms at 6, 12 and 24 months after surgery. Estimated as the number of bone consolidations in each arm, over the total number of treated patients in each arm . For this endpoint, bone consolidation was defined as previously established for the primary endpoint. - Pain scale value in the G2a and G2b treatment arms at baseline, 6, 12 and 24 months after surgery, using Numeric Rating Scale (NRS) for pain (from 0 to 10). - Rate of reoperation in the callus site in the G2a and G2b treatment arms of treatment at 6, 12 and 24 months after surgery. - Average percentage of the Short Form-36 Health Survey at baseline, 6, 12 and 24 months after surgery.
SAFETY ENDPOINTS: ** G1/G2 arms: Safety endpoints will be estimated in the G1 and G2 treatment arms and includes: a) Early local complication rate, as percentage of patients with local complications within three months after surgery. b) Global complication rate, as percentage of patients with local or general complications regarding potential effects of the treatment at 6, 12 and 24 months after surgery. For early and global complications we will specifically investigate: - Adverse event related to the product application process (surgical or other, including the bone marrow harvesting process or the iliac crest graft) - Local heterotopic ossification - Local bone resorption - Local osteolysis - Local and general infection - Vascular complication (ischemia, phlebitis) - Neurological problems - Unexpected events (e.g. hypersensitivity, immunological, toxic or other) - Adverse events related to mandatory concomitant medication (e.g. anaesthetics)
** G2b/G2a arms: Safety endpoints (early complication rate and global complication rate) will be compared in the G2a and G2b of treatments arm as described above (for the G1-G2 arm comparison). |
CRITERES D’EFFICACITE - Score de consolidation radiologique - Score radiologique à l'aide de l'Échelle REBORNE - Pourcentage de consolidation. - Score de l'échelle de la douleur - Taux de ré-intervention au niveau du cal osseux formé à 6, 12 et 24 mois après la chirurgie. - Variation moyenne du score de qualité de vie SF-36 entre T0, 6, 12 et 24
CRITERES DE SECURITE - Taux de complication locale précoce dans les trois mois suivant la chirurgie. - Taux global de complication 6, 12 et 24 mois après la chirurgie.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
6 and 24 months after surgery, in some items, and 6, 12 and 24 months, in other. |
6 et 24 mois après la chirurgie, pour certaines variables, et 6, 12 et 24 mois, pour d'autres |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | Yes |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Autologous graft harvested from the iliac crest |
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E.8.2.4 | Number of treatment arms in the trial | 3 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 6 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 22 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 4 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |