ClinicalTrials.gg
Status unknownNCT05049915Updated Sep 20, 2021

Evaluation of the Clinical Effectiveness of Bioactive Glass (S53P4) in the Treatment of Tibia and Femur Non-unions

An interventional study of bioglass (S53P4) and RIA and TCP in Pseudoarthrosis of Bone, sponsored by Sebastian Findeisen. Status unknown at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-09-20.

Sponsored by Sebastian Findeisen · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Sep 2021), so the status shown — last known as Recruiting — may be out of date.

From the registry’s dates

  • Registered 3 years after the study started (first participant enrolled Jun 2018, registered Jun 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Abstract Background: Treatment of non-union remains challenging and often necessitates augmentation of the resulting defect with an autologous bone graft (ABG). ABG is limited in quantity and its harvesting incurs an additional surgical intervention leaving the risk for associated complications and morbidities. Therefore, artificial bone graft substitutes that might replace autologous bone are needed. S53P4-type bioactive glass (BaG) is a promising material which might be used as bone graft substitute due to its osteostimulative, conductive and antimicrobial properties. In this study, the investigators plan to examine the clinical effectiveness of BaG as a bone graft substitute in Masquelet therapy in comparison with present standard Masquelet therapy using an ABG with tricalciumphosphate to fill the bone defect.

Methods/design: This randomized controlled, clinical non-inferiority trial will be carried out at the Department of Orthopedics and Traumatology at Heidelberg University. Patients who suffer from tibial or femoral non-unions with a segmental bone defect of 2-5 cm and who are receiving Masquelet treatment will be included in the study. The resulting bone defect will either be filled with autologous bone and tricalciumphosphate (control group, N = 25) or BaG (S53P4) (study group, N = 25). Subsequent to operative therapy, all patients will receive the same standardized follow-up procedures. The primary endpoint of the study is union achieved 1year after surgery.

Discussion: The results from the current study will help evaluate the clinical effectiveness of this promising biomaterial in non-union therapy. In addition, this randomized trial will help to identify potential benefits and limitations regarding the use of BaG in Masquelet therapy. Data from the study will increase the knowledge about BaG as a bone graft substitute as well as identify patients possibly benefiting from Masquelet therapy using BaG and those who are more likely to fail, thereby improving the quality of non-union treatment.

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Conditions studied

  • Pseudoarthrosis of Bone

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03

In context

Pseudarthrosis

41 studies on the registry are indexed under Pseudarthrosis; 7 are open to participants now.

This study's planned enrollment of 50 is above the median of 22 across 25 interventional studies indexed under Pseudarthrosis.

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Lead sponsor

This is the only study on the registry with Sebastian Findeisen as lead sponsor.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • pseudarthrosis of the tibia or femur
  • bone defect \< 5 cc
  • surgical treatment with Masquelet technique

Exclusion criteria

Exclusion Criteria:

  • age under 18
  • disagreement
  • patients who require amputation of the affected limb
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
50 participants (estimated)

Study arms

  • Experimental
    Masquelet technique: bioactive glass

    Device: bioglass (S53P4)

  • Active comparator
    Masquelet technique: RIA + TCP

    Device: RIA and TCP

Interventions

  • Devicebioglass (S53P4)

    surgical procedure: Masquelet defect augmentation with bioglass

  • DeviceRIA and TCP

    surgical procedure: Masquelet defect augmentation with RIA and TCP

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What researchers measure

Primary outcomes

  1. Rate of participants with osseus consolidation evaluation via x-ray

    x-ray in 2 planes; union = cortical bridging of at least three out of four cortices

    Time frame: 1 year post-operative Masquelet step II

Secondary outcomes

  1. 12-item Short Form Survey (SF-12)

    Quality of life: Physical Score 23.99938(lowest/worst)-56.57706(highest/best), Mental Score 19.06444(lowest/worst)-60.75781 (highest/best)

    Time frame: 1 year post-operative Masquelet step II

  2. Perfusion

    Real-time microperfusion assessment using Contrast enhanced ultra-sound (CEUS), contrasting agent: SonoVue. Objective perfusion quantification (using VueBox). Evaluation of characteristic perfusion parameters such as: wash-in rate, wash-in perfusion index

    Time frame: 3 months post-operative Masquelet step II

  3. Rate of participants with osseus consolidation evaluation via CT

    union = cortical bridging of at least three out of four cortices

    Time frame: 1 year post-operative Masquelet step II

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Study locations

1 of 1 sites recruiting
  • University Hospital Heidelberg
    Heidelberg, Baden-Württemberg 69118, Germany
    Recruiting
08

References and documents

Publications

  • Einhorn TA. The cell and molecular biology of fracture healing. Clin Orthop Relat Res. 1998 Oct;(355 Suppl):S7-21. doi: 10.1097/00003086-199810001-00003. PubMed 9917622 ↗
  • Schmidmaier G, Moghaddam A. [Long Bone Nonunion]. Z Orthop Unfall. 2015 Dec;153(6):659-74; quiz 675-6. doi: 10.1055/s-0035-1558259. Epub 2015 Dec 15. German. PubMed 26670151 ↗
  • Hak DJ, Fitzpatrick D, Bishop JA, Marsh JL, Tilp S, Schnettler R, Simpson H, Alt V. Delayed union and nonunions: epidemiology, clinical issues, and financial aspects. Injury. 2014 Jun;45 Suppl 2:S3-7. doi: 10.1016/j.injury.2014.04.002. PubMed 24857025 ↗
  • Giannoudis PV, Einhorn TA, Marsh D. Fracture healing: the diamond concept. Injury. 2007 Sep;38 Suppl 4:S3-6. doi: 10.1016/s0020-1383(08)70003-2. PubMed 18224731 ↗
  • Romano CL, Logoluso N, Meani E, Romano D, De Vecchi E, Vassena C, Drago L. A comparative study of the use of bioactive glass S53P4 and antibiotic-loaded calcium-based bone substitutes in the treatment of chronic osteomyelitis: a retrospective comparative study. Bone Joint J. 2014 Jun;96-B(6):845-50. doi: 10.1302/0301-620X.96B6.33014. PubMed 24891588 ↗
  • Valimaki VV, Aro HT. Molecular basis for action of bioactive glasses as bone graft substitute. Scand J Surg. 2006;95(2):95-102. doi: 10.1177/145749690609500204. PubMed 16821652 ↗
  • Lindfors N, Geurts J, Drago L, Arts JJ, Juutilainen V, Hyvonen P, Suda AJ, Domenico A, Artiaco S, Alizadeh C, Brychcy A, Bialecki J, Romano CL. Antibacterial Bioactive Glass, S53P4, for Chronic Bone Infections - A Multinational Study. Adv Exp Med Biol. 2017;971:81-92. doi: 10.1007/5584_2016_156. Erratum In: Adv Exp Med Biol. 2017;971:115-116. doi: 10.1007/5584_2017_13. PubMed 28050878 ↗
  • Lindfors NC, Hyvonen P, Nyyssonen M, Kirjavainen M, Kankare J, Gullichsen E, Salo J. Bioactive glass S53P4 as bone graft substitute in treatment of osteomyelitis. Bone. 2010 Aug;47(2):212-8. doi: 10.1016/j.bone.2010.05.030. PubMed 20624692 ↗
  • van Gestel NA, Geurts J, Hulsen DJ, van Rietbergen B, Hofmann S, Arts JJ. Clinical Applications of S53P4 Bioactive Glass in Bone Healing and Osteomyelitic Treatment: A Literature Review. Biomed Res Int. 2015;2015:684826. doi: 10.1155/2015/684826. Epub 2015 Oct 4. PubMed 26504821 ↗
  • Kokubo T, Takadama H. How useful is SBF in predicting in vivo bone bioactivity? Biomaterials. 2006 May;27(15):2907-15. doi: 10.1016/j.biomaterials.2006.01.017. Epub 2006 Jan 31. PubMed 16448693 ↗
  • Stoor P, Apajalahti S, Kontio R. Regeneration of Cystic Bone Cavities and Bone Defects With Bioactive Glass S53P4 in the Upper and Lower Jaws. J Craniofac Surg. 2017 Jul;28(5):1197-1205. doi: 10.1097/SCS.0000000000003649. PubMed 28538076 ↗
  • Stoor P, Pulkkinen J, Grenman R. Bioactive glass S53P4 in the filling of cavities in the mastoid cell area in surgery for chronic otitis media. Ann Otol Rhinol Laryngol. 2010 Jun;119(6):377-82. doi: 10.1177/000348941011900603. PubMed 20583735 ↗
  • Kankare J, Lindfors NC. Reconstruction of Vertebral Bone Defects using an Expandable Replacement Device and Bioactive Glass S53P4 in the Treatment of Vertebral Osteomyelitis: Three Patients and Three Pathogens. Scand J Surg. 2016 Dec;105(4):248-253. doi: 10.1177/1457496915626834. Epub 2016 Jun 23. PubMed 26929284 ↗
  • Fischer C, Frank M, Kunz P, Tanner M, Weber MA, Moghaddam A, Schmidmaier G, Hug A. Dynamic contrast-enhanced ultrasound (CEUS) after open and minimally invasive locked plating of proximal humerus fractures. Injury. 2016 Aug;47(8):1725-31. doi: 10.1016/j.injury.2016.05.005. Epub 2016 May 14. PubMed 27242329 ↗
  • Fischer C, Preuss EM, Tanner M, Bruckner T, Krix M, Amarteifio E, Miska M, Moghaddam-Alvandi A, Schmidmaier G, Weber MA. Dynamic Contrast-Enhanced Sonography and Dynamic Contrast-Enhanced Magnetic Resonance Imaging for Preoperative Diagnosis of Infected Nonunions. J Ultrasound Med. 2016 May;35(5):933-42. doi: 10.7863/ultra.15.06107. Epub 2016 Apr 1. PubMed 27036169 ↗
  • Fischer C, Nissen M, Schmidmaier G, Bruckner T, Kauczor HU, Weber MA. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) for the prediction of non-union consolidation. Injury. 2017 Feb;48(2):357-363. doi: 10.1016/j.injury.2017.01.021. Epub 2017 Jan 9. PubMed 28088373 ↗
  • Haubruck P, Kammerer A, Korff S, Apitz P, Xiao K, Buchler A, Biglari B, Zimmermann G, Daniel V, Schmidmaier G, Moghaddam A. The treatment of nonunions with application of BMP-7 increases the expression pattern for angiogenic and inflammable cytokines: a matched pair analysis. J Inflamm Res. 2016 Sep 22;9:155-165. doi: 10.2147/JIR.S110621. eCollection 2016. PubMed 27703392 ↗
  • Moghaddam A, Breier L, Haubruck P, Bender D, Biglari B, Wentzensen A, Zimmermann G. Non-unions treated with bone morphogenic protein 7: introducing the quantitative measurement of human serum cytokine levels as promising tool in evaluation of adjunct non-union therapy. J Inflamm (Lond). 2016 Jan 22;13:3. doi: 10.1186/s12950-016-0111-x. eCollection 2016. PubMed 26807043 ↗
  • Tanner MC, Heller R, Westhauser F, Miska M, Ferbert T, Fischer C, Gantz S, Schmidmaier G, Haubruck P. Evaluation of the clinical effectiveness of bioactive glass (S53P4) in the treatment of non-unions of the tibia and femur: study protocol of a randomized controlled non-inferiority trial. Trials. 2018 May 30;19(1):299. doi: 10.1186/s13063-018-2681-9. PubMed 29843766 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — anonymized/pseudonymized, data that underlies results in a publication

Supporting information: Study protocol, Statistical analysis plan, Clinical study report

Time frame: after conclusion and evaluation of the study

Access criteria: public

Data sharing details ↗ · pubmed.ncbi.nlm.nih.gov

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 20, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05049915
Lead sponsor
Sebastian Findeisen
Collaborators
Bonalive Biomaterials Ltd
Responsible party
Sebastian Findeisen (Intern, University Hospital Heidelberg) — Sponsor-investigator
First posted
Sep 20, 2021
Start date
Jun 1, 2018
Primary completion
Dec 31, 2022 (estimated)
Completion
Dec 31, 2022 (estimated)
Last update
Sep 20, 2021

Study contacts

Sebastian Findeisen, Dr. med.
Contact
sebastian.findeisen@med.uni-heidelberg.de
+4962215634330
Patrick Haubruck, Dr. med.
Contact
patrick.haubruck@med.uni-heidelberg.de
Gerhard Schmidmaier, Prof. Dr.
study director · HTRG

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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