Mesenchymal Stem Cells in Osteonecrosis of the Femoral Head

Phase 1

Completed

• Conditions: Avascular Necrosis of Femur Head
• Interventions: Biological: XCEL-MT-OSTEO-ALPHA; Procedure: Standard treatment

• Registration Number: NCT01605383
• Lead Sponsor: Banc de Sang i Teixits

Brief Summary

The present study evaluates the effect of XCEL-MT-OSTEO-ALPHA in osteonecrosis of the femoral head in comparison to the standard treatment of isolated core decompression.

XCEL-MT-OSTEO-ALPHA is a tissue engineering product composed by "ex-vivo" expanded autologous mesenchymal stem cells fixed in allogenic bone tissue.

The working hypothesis proposes that the tissue engineering is a valid and useful technique to achieve bone regeneration, avoiding the progression to collapse of the femoral head.

Detailed Description

Prospective, open-label with blinded assessor, randomized, parallel, single-dose phase I-II clinical trial in which 24 patients affected with osteonecrosis of the femoral head ARCO grade I or II will enter the trial with the primary objective of assessing the feasibility and safety of "ex-vivo" expanded autologous mesenchymal stem cells fixed in allogenic bone tissue in osteonecrosis of the femoral head. Secondary objectives are to assess the efficacy of the implantation by imaging (magnetic resonance imaging) and clinical questionnaires (pain by visual analogue scale, quality of life by SF-36 and WOMAC Index).

Patients will be randomized to one of the two treatment arms (core decompression and the tissue engineering product composed by "ex-vivo" expanded autologous mesenchymal stem cells fixed in allogenic bone tissue or the standard treatment of isolated core decompression). Thereafter, patients will be followed for 12 months.

Study Timeline

• Study First Submitted: 2012-05-22
• Study First Submitted QC: 2012-05-23
• Study First Posted: 2012-05-24
• Study Start: 2015-05-05
• Primary Completion: 2018-04-11
• Study Completion: 2019-06-27
• Status Verified: 2020-01
• Last Update Submitted: 2020-01-15
• Last Update Posted: 2020-01-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 23

Inclusion Criteria

• 18 to 50 years of age (male and female)
• Osteonecrosis of the hip ARCO grade I or II
• Abscence of systemic or local infection
• Laboratory tests with no relevant abnormal findings that contraindicate the surgery.
• Informed Consent Form signed
• The patient is able to understand the nature of the study

Exclusion Criteria

• Osteonecrosis of the hip secondary to femoral neck fracture
• Patients with no closed cartilage
• Surgical implants in the femoral head
• Septic arthritis
• Patients with severe renal insufficiency
• Patients expecting or with liver transplantation
• Positive serology for HIV-1 or HIV-2, Hepatitis B (HBsAg), Hepatitis C (Anti-HCV-Ab) or Syphilis.
• Pregnant woman or intended to become pregnant, or breath feeding
• Neoplasia within the previous 5 years, or without remission
• Immunosuppressive states
• The patient is legally dependent
• Participation in another clinical trial or treated with an investigational medicinal product the previous 30 days
• Cardiac pacemaker, allergy to contrast or any other condition that contraindicates the MRI with contrast agents
• Other pathologic conditions or circumstances that difficult participation in the study according to medical criteria
• The patient does not accept to be followed-up for a period thar could exceed the clinical trial length

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
XCEL-MT-OSTEO-ALPHA	XCEL-MT-OSTEO-ALPHA	"ex-vivo" expanded autologous mesenchymal stem cells fixed in allogenic bone tissue (under Xcelia-GMP conditions)for osteonecrosis of the femoral head
Standard Treatment	Standard treatment	Isolated core decompression

Primary Outcome Measures

Name	Time	Method
Safety of XCEL-MT-OSTEO-ALPHA in osteonecrosis of the femoral head	12 months	Safety will be assessed by collecting adverse events throughout the experimental phase, which includes a follow-up of 12 months
Feasibility of XCEL-MT-OSTEO-ALPHA in osteonecrosis of the femoral head	12 months	Feasibility will be measured by assessing the percentage of patients to which bone marrow puncture is made are thereafter treated and by checking the cascade of procedures to confirm the global process is viable.

Secondary Outcome Measures

Name	Time	Method
Dynamic changes of signal intensity	6 and 12 months	Dynamic changes of signal intensity after Gd enhancement in the necrotic areas of the femoral head
Bone regeneration by measuring the necrotic angle using the modified Kerboul method	6 and 12 months	The necrotic angle will be measured using imaging procedures (magnetic resonance imaging MRI).
Clinical outcomes (SF-36)	3, 6 and 12 months	This clinical outcome will measure the quality of life by the self-reported quality of life questionnaire SF-36
Clinical outcome (WOMAC)	3, 6 and 12 months	To assess the extent by which a person's functional level is restricted by the WOMAC index
Clinical outcomes (pain) by Visual Analogue Scale (VAS)	7 days and at 3, 6 and 12 months	Pain measurement by VAS

Trial Locations

Locations (1)

Hospital Universitari Vall d'Hebron; 🇪🇸 Barcelona, Spain