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A phase IIa, unicenter, prospective, randomized, parallel, two-arms, single-dose, open-label with blinded assessor pilot clinical trial to assess ex vivo expanded adult autologous mesenchymal stromal cells fixed in allogeneic bone tissue (XCEL-MT-OSTEO-ALPHA) in non hypertrphic pseudoarthrosis of long bones

A phase IIa, unicenter, prospective, randomized, parallel, two-arms, single-dose, open-label with blinded assessor pilot clinical trial to assess ex vivo expanded adult autologous mesenchymal stromal cells fixed in allogeneic bone tissue (XCEL-MT-OSTEO-ALPHA) in non hypertrphic pseudoarthrosis of long bones

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2013-005025-23-ES
Enrollment
20
Registered
2014-01-09
Start date
2014-03-11
Completion date
Unknown
Last updated
2019-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

pseudarthrosis MedDRA version: 16.1 Level: PT Classification code 10048617 Term: Pseudarthrosis System Organ Class: 10028395 - Musculoskeletal and connective tissue disorders

Interventions

Product Name: XCEL-MT-OSTEO-ALPHA Product Code: XCEL-MT-OSTEO-ALPHA Pharmaceutical Form: Living tissue equivalent INN or Proposed INN: NA

Sponsors

Banc de Sang i Teixits (BST)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. 18 to 85 years of age (male and female) 2. Atrophic or hypothrophic metaphyseal?diaphyseal pseudarthrosis of long bones, confirmed radiographically. 3. Informed Consent Form signed 4. The patient is able to understand the nature of the study Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 20 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Suspicious of pseudarthrosis focus infection diagnosed by clinical inspection and blood analysis. 2. Positive serology for HIV (Anti-HIV I/II-Ac), Hepatitis B (HBsAg, HBcAc), Hepatitis C (Anti-HCV-Ac) or Syphilis Lúes (TP-Ac). 3. Significant abnormal laboratory tests that contraindicates patient?s participation in the study. 4. Pregnant woman or without proper anticonceptive measures according to the investigator, or breath feeding 5. Smoker of more than 15 cigarettes a day 6. Congenital disorders of bones (hypophosphatemia), bone metabolic disorders associated to primary or secondary hypoparathyroidism. 7. Badly managed diabetes mellitus. 8. Patients diagnosed with peripheral arterial disorders 9. Previous therapeutic radiation (5 previus years) of the affected bone. 10. Neoplasia within the previous 5 years, or without remission 11. The patient is legally dependent 12. Participation in another clinical trial or treated with an investigational medicinal product the previous 30 days 13. Other pathologic conditions or circumstances that difficult participation in the study according to medical criteria 14. The patient does not accept to be followed-up for a period that could exceed the clinical trial length

Design outcomes

Primary

MeasureTime frame
Main Objective: -To assess the efficacy of XCEL-MT-OSTEO-ALPHA in the treatment of non-hypertrophic pseudarthrosis of long bones through quantifying of the Hounsfield units by TC at month 12 postreatment.; Secondary Objective: -To assess the feasibility and safety of XCEL-MT-OSTEO-ALPHA in the treatment of non-hypertrophic pseudarthrosis of long bones -To assess the efficacy of XCEL-MT-OSTEO-ALPHA in the treatment of non-hypertrophic pseudarthrosis of long bones through: a)Characteristics of the callus by TC at month 6 postreatment b)Characteristics of the callus by standard x-ray c)Quality of life by EUROQOL-5D test ;Primary end point(s): -Efficacy assessment by TC: quantifying of the Hounsfield units in both treatment arms;Timepoint(s) of evaluation of this end point: At month 12

Secondary

MeasureTime frame
Timepoint(s) of evaluation of this end point: -1: At each study visit -2: RX at month 1, 2, 3, 4, 5, 6, 9 and 12 -3: EUROQOL: at month 1, 3, 6, 9 and 12 ; Secondary end point(s): - Safety assessment through physical examination, vital signs, laboratory parameters and adverse events. - Efficacy assessment by imaging procedures (TC and x-ray) with pseudarthrosis consolidation assessment in both treatment arms - Clinical assessment through quality of life EUROQOL-5D test,

Countries

Spain

Contacts

Public ContactRuth Coll Bonet, Directora Médica

Banc de Sang i Teixits (BST)

rucoll@bst.cat+349355735006707

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026