NCT05741983

AMIC vs. MFx in the Ankle

A Prospective, Double Blind, Single-centre, Randomised Controlled Trial Comparing Arthroscopic Autologous Matrix Induced Chondrogenesis (AMIC®) to Microfracture Alone in the Treatment of Osteochondral and Chondral Lesion in the Ankle (AMARTA)

• Status: Withdrawn
• Phase: N/A
• Study type: Interventional
• Enrollment: 0 (actual)
• Sponsor: Geistlich Pharma AG · Industry
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

This clinical investigation is a prospective, double blind, single-centre, randomised controlled trial comparing arthroscopic autologous matrix induced chondrogenesis (AMIC®) to microfracture alone in the treatment of osteochondral and chondral lesion in the ankle to evaluate effectiveness, performance and safety of AMIC® procedure versus microfracture (MFx).

Detailed description

This clinical investigation compares arthroscopic autologous matrix induced chondrogenesis (AMIC®) to microfracture alone in the treatment of osteochondral and chondral lesion in the ankle to evaluate effectiveness, performance and safety of AMIC® procedure versus microfracture (MFx). It is a prospective, double blind, single-centre, randomised controlled trial. The objective of this clinical investigation is to evaluate performance, effectiveness, and safety of AMIC® procedure versus Microfracture (MFx). The effectiveness of the treatment is measured by the difference in the walking/standing- part score taken from the Manchester Oxford Foot Questionnaire (MOX-FQ) from baseline to 12 months. The secondary endpoints concern clinical safety and performance. Patients will be randomized into two groups: Microfracture alone (MFx) or Bone Marrow Stimulation (Microfracture) with Chondro-Gide® (AMIC®). The investigational device will be assessed within its intended use.

Conditions

• Osteochondral Lesion of Talus
• Chondral Defect
• Microfracture

Interventions

Type	Name	Description
PROCEDURE	Microfracture (MFx)	The ankle arthroscopy will be a standard procedure. The lesion will be identified, measured and prepared with curettage and soft tissue shaver. Preparation includes debridement of the unstable cartilage and in case of a chondral defect associated with a bone defect, the subchondral cyst is debrided. After debridement, the defect is classified and the lesion size is measured again.The microfracture will be performed with a microfracture awl. In cases of a chondral defect associated with a bone defect (osteochondral defect) the bone lesion must be treated concomitantly. Portal closure will be with steri-strips. All patients will follow the standard postoperative rehabilitation protocol including post op non-weight bearing and range of motion exercises for 6 weeks.
DEVICE	Chondro-Gide®	After the microfracture is performed and before the concomitant treatment of a bony lesion (if present), the defect size will be templated, and the membrane cut into its correct size. The joint is then drained and the membrane will be applied over the defect and stabilised with Fibrin glue. In cases of a osteochondral defect the bone lesion must be treated concomitantly. Once the bone defect has been treated, the Chondro-Gide® membrane is used to cover the site, and to support new cartilage tissue formation at the joint interface. Fluid will be reintroduced, and the stability of the membrane will be confirmed arthroscopically.

Timeline

• Start date: 2023-04-28
• Primary completion: 2024-02-06
• Completion: 2024-02-06
• First posted: 2023-02-23
• Last updated: 2024-03-18

Locations

1 site across 1 country: United Kingdom