Bridge-Enhanced ACL Repair-Safety Study (BEAR Trial)

NCT ID: NCT02292004

Last Updated: 2025-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-01-31

Study Completion Date

2026-12-31

Brief Summary

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This study will assess the safety and early efficacy of a newly developed device, bridge-enhanced scaffold (MIACH™,) used to repair a torn anterior cruciate ligament (ACL.) Ten participants will undergo surgery with the new device (Experimental Group) and 10 will undergo a standard ACL reconstruction surgery (Control Group.)

Detailed Description

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This is a first-in-human trial for evaluation of the safety (Primary Objective) and short-term efficacy (Secondary Objective) of the MIACH™ ACL scaffold and will be carried out in form of an observational study of 20 patients: 10 experimental and 10 control.

Conditions

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Anterior Cruciate Ligament Injury Anterior Cruciate Ligament Tear

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DEVICE_FEASIBILITY

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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ACL repair with MIACH scaffold

Patients will undergo ACL repair surgery using the newly developed MIACH scaffold

Group Type EXPERIMENTAL

ACL Repair with MIACH Scaffold

Intervention Type DEVICE

Surgical insertion of the MIACH scaffold to promote ACL healing/repair

Standard ACL reconstruction

Patients will undergo a standard ACL reconstruction surgery

Group Type ACTIVE_COMPARATOR

Standard ACL Reconstruction

Intervention Type PROCEDURE

Standard surgical reconstruction of the ACL with autograft hamstring tendon

Interventions

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ACL Repair with MIACH Scaffold

Surgical insertion of the MIACH scaffold to promote ACL healing/repair

Intervention Type DEVICE

Standard ACL Reconstruction

Standard surgical reconstruction of the ACL with autograft hamstring tendon

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Complete ACL tear, confirmed by MRI
* Time from injury to screening must be less than or equal to 90 days
* ACL tissue present on pre-operative MRI

Exclusion Criteria

* Prior surgery on affected knee
* History of prior infection in affected knee
* Regular use of tobacco or nicotine in any form
* Use of corticosteroid within last 6 months
* Ever underwent chemotherapy treatment
* History of sickle cell disease
* History of anaphylaxis
* Any condition that could affect healing (Diabetes, inflammatory arthritis, etc)
* Diagnosis of posterolateral corner injury (LCL complete tear, Biceps femoris tendon avulsion, tear of the arcuate ligament, tear of the popliteus ligament)
* Diagnosis of Grade III medial collateral ligament injury
* Diagnosis of complete patellar dislocation


* ACL deemed normal on arthroscopic inspection
* Time from injury to surgery is greater than 90 days (for Comparator group) and greater than 30 days (for Experimental group)
* Experimental Group: Less than 50 percent of ACL remaining
* Displaced bucket handle meniscal injury requiring repair
* Diagnosis of full-thickness chondral injury on either condyle
* Grade III medial collateral ligament injury
Minimum Eligible Age

18 Years

Maximum Eligible Age

35 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Miach Orthopaedics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lyle Micheli, MD

Role: PRINCIPAL_INVESTIGATOR

Boston Children's Hospital

Locations

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Boston Children's Hospital

Boston, Massachusetts, United States

Site Status

Countries

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United States

References

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Hall TL, Thompson RW. Interhemispheric transfer as a function of light intensity discrimination difficulty. J Comp Physiol Psychol. 1971 Oct;77(1):166-70. doi: 10.1037/h0031569. No abstract available.

Reference Type BACKGROUND
PMID: 5120682 (View on PubMed)

Barnett SC, Murray MM, Flannery SW; BEAR Trial Team; Menghini D, Fleming BC, Kiapour AM, Proffen B, Sant N, Portilla G, Sanborn R, Freiberger C, Henderson R, Ecklund K, Yen YM, Kramer D, Micheli L. ACL Size, but Not Signal Intensity, Is Influenced by Sex, Body Size, and Knee Anatomy. Orthop J Sports Med. 2021 Dec 17;9(12):23259671211063836. doi: 10.1177/23259671211063836. eCollection 2021 Dec.

Reference Type DERIVED
PMID: 34988237 (View on PubMed)

Kiapour AM, Ecklund K, Murray MM; BEAR Trial Team; Flutie B, Freiberger C, Henderson R, Kramer D, Micheli L, Thurber L, Yen YM, Fleming BC. Changes in Cross-sectional Area and Signal Intensity of Healing Anterior Cruciate Ligaments and Grafts in the First 2 Years After Surgery. Am J Sports Med. 2019 Jul;47(8):1831-1843. doi: 10.1177/0363546519850572. Epub 2019 Jun 5.

Reference Type DERIVED
PMID: 31166701 (View on PubMed)

Other Identifiers

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IRB-P00012985

Identifier Type: -

Identifier Source: org_study_id