Hospital-Based Cluster Trial: Magnetically Controlled Growing Rods Using Distraction Intervals

NCT ID: NCT04058561

Last Updated: 2024-10-24

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

210 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-11-01

Study Completion Date

2027-12-31

Brief Summary

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A hospital-based cluster stratified randomization control study will be conducted to investigate spinal growth in Early Onset Scoliosis patients between 5 and 9 years of age. Patients must have a major coronal curve measuring over 50 degrees and be undergoing Magnetically Controlled Growing Rod treatment. We will be studying 6-week lengthening intervals compared to 16-week lengthening intervals on spinal growth within 3 years.

Detailed Description

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The Magnetically Controlled Growing Rod (MCGR) system consists of growing rods similarly implanted as with traditional approaches, but with subsequent noninvasive distractions. The implanted growing rods are magnetically controlled and adjusted outside the body using an external remote controller (ERC) following initial surgical insertion. No incision or anesthesia are used for rod lengthening procedures and they are performed by the surgeon in an outpatient or office setting. The purpose of this study is to determine the effect of a 6-week lengthening interval compared to a 16-week lengthening interval on spinal growth in Early Onset Scoliosis patients between 5 and 9 years of age with a major coronal curve over 50 degrees undergoing MCGR treatment within 3 years.

Conditions

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Early-Onset Scoliosis Deformity of Spine

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Sites will be randomized into two arms of lengthening intervals: 6 weeks (+/- 2 weeks) or 16 weeks (+/- 2 weeks).
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
Radiographs will be uploaded by each site to the coordinating team and will not have access to the information on exposure arms.

Study Groups

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6 weeks

6-week lengthening interval

Group Type EXPERIMENTAL

MAGEC® Spinal Bracing And Distraction System

Intervention Type DEVICE

The magnetically controlled growth rod (MCGR) system is a remotely distractible, magnetically controlled growing rod. The remote capabilities allow for less invasive and less time-consuming outpatient distraction visits, which solves many of the problems facing current growing rod technologies. The MCGR system allows for more frequent lengthenings, and the implanted growing rods can be lengthened more often, which allows MCGR to better approximate normal spine growth compared to Traditional Growing Rods.

16 weeks

16-week lengthening interval

Group Type ACTIVE_COMPARATOR

MAGEC® Spinal Bracing And Distraction System

Intervention Type DEVICE

The magnetically controlled growth rod (MCGR) system is a remotely distractible, magnetically controlled growing rod. The remote capabilities allow for less invasive and less time-consuming outpatient distraction visits, which solves many of the problems facing current growing rod technologies. The MCGR system allows for more frequent lengthenings, and the implanted growing rods can be lengthened more often, which allows MCGR to better approximate normal spine growth compared to Traditional Growing Rods.

Interventions

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MAGEC® Spinal Bracing And Distraction System

The magnetically controlled growth rod (MCGR) system is a remotely distractible, magnetically controlled growing rod. The remote capabilities allow for less invasive and less time-consuming outpatient distraction visits, which solves many of the problems facing current growing rod technologies. The MCGR system allows for more frequent lengthenings, and the implanted growing rods can be lengthened more often, which allows MCGR to better approximate normal spine growth compared to Traditional Growing Rods.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* All patients with diagnosis of Early Onset Scoliosis (scoliosis before age 10)
* Between 5 and 9 years of age (5.0 to 9.9 years)
* Major curve greater than 50 degrees at time of index surgery
* Dual-rod Magnetically Controlled Growing Rod implantation only
* Spine or rib-based constructs
* Pre-operative and intra-operative halo gravity traction is allowed

Exclusion Criteria

* Patients with previous spine surgery, including other growth friendly techniques
* Patients who cannot abide by the study requirements due to geographical or other similar constraints
Minimum Eligible Age

5 Years

Maximum Eligible Age

9 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Columbia University

OTHER

Sponsor Role collaborator

Pediatric Spine Foundation

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Michael Vitale, MD

Role: PRINCIPAL_INVESTIGATOR

Columbia University

Kenneth MC Cheung, MD, FRCS

Role: PRINCIPAL_INVESTIGATOR

The University of Hong Kong, Department of Orthopaedics and Traumatology

Locations

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Children's Hospital Los Angeles

Los Angeles, California, United States

Site Status

Rady Children's Hospital - San Diego

San Diego, California, United States

Site Status

Children's Hospital Colorado

Aurora, Colorado, United States

Site Status

Alfred I. DuPont Hospital for Children

Wilmington, Delaware, United States

Site Status

Children's National Health System

Washington D.C., District of Columbia, United States

Site Status

University of Florida

Gainesville, Florida, United States

Site Status

Children's Physican Group Orthopaedics/Children's Healthcare of Atlanta

Atlanta, Georgia, United States

Site Status

Johns Hopkins University

Baltimore, Maryland, United States

Site Status

C.S. Mott Children's Hospital, University of Michigan

Ann Arbor, Michigan, United States

Site Status

Washington University School of Medicine, St. Louis Children's Hospital

St Louis, Missouri, United States

Site Status

Columbia University Medical Center

New York, New York, United States

Site Status

Rainbow Babies and Children's Hospital

Cleveland, Ohio, United States

Site Status

The Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, United States

Site Status

Shriners Hospitals for Children - Philadelphia

Philadelphia, Pennsylvania, United States

Site Status

Medical University of South Carolina

Charleston, South Carolina, United States

Site Status

Campbell Clinic/Le Bonheur Children's Hospital

Memphis, Tennessee, United States

Site Status

Texas Scottish Rite Hospital

Dallas, Texas, United States

Site Status

IWK Health Centre

Halifax, Nova Scotia, Canada

Site Status

Turku University Hospital, Department of Pediatric Orthopaedic Surgery

Turku, , Finland

Site Status

The University of Hong Kong, Department of Orthopaedics and Traumatology

Hong Kong, , Hong Kong

Site Status

Countries

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United States Canada Finland Hong Kong

References

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Corona J, Miller DJ, Downs J, Akbarnia BA, Betz RR, Blakemore LC, Campbell RM Jr, Flynn JM, Johnston CE, McCarthy RE, Roye DP Jr, Skaggs DL, Smith JT, Snyder BD, Sponseller PD, Sturm PF, Thompson GH, Yazici M, Vitale MG. Evaluating the extent of clinical uncertainty among treatment options for patients with early-onset scoliosis. J Bone Joint Surg Am. 2013 May 15;95(10):e67. doi: 10.2106/JBJS.K.00805.

Reference Type BACKGROUND
PMID: 23677368 (View on PubMed)

Flynn JM, Matsumoto H, Torres F, Ramirez N, Vitale MG. Psychological dysfunction in children who require repetitive surgery for early onset scoliosis. J Pediatr Orthop. 2012 Sep;32(6):594-9. doi: 10.1097/BPO.0b013e31826028ea.

Reference Type BACKGROUND
PMID: 22892621 (View on PubMed)

JAMES JI. Idiopathic scoliosis; the prognosis, diagnosis, and operative indications related to curve patterns and the age at onset. J Bone Joint Surg Br. 1954 Feb;36-B(1):36-49. doi: 10.1302/0301-620X.36B1.36. No abstract available.

Reference Type BACKGROUND
PMID: 13130619 (View on PubMed)

Pehrsson K, Larsson S, Oden A, Nachemson A. Long-term follow-up of patients with untreated scoliosis. A study of mortality, causes of death, and symptoms. Spine (Phila Pa 1976). 1992 Sep;17(9):1091-6. doi: 10.1097/00007632-199209000-00014.

Reference Type BACKGROUND
PMID: 1411763 (View on PubMed)

Smith JT. The use of growth-sparing instrumentation in pediatric spinal deformity. Orthop Clin North Am. 2007 Oct;38(4):547-52, vii. doi: 10.1016/j.ocl.2007.03.009.

Reference Type BACKGROUND
PMID: 17945134 (View on PubMed)

Cheung KM, Cheung JP, Samartzis D, Mak KC, Wong YW, Cheung WY, Akbarnia BA, Luk KD. Magnetically controlled growing rods for severe spinal curvature in young children: a prospective case series. Lancet. 2012 May 26;379(9830):1967-74. doi: 10.1016/S0140-6736(12)60112-3. Epub 2012 Apr 19.

Reference Type BACKGROUND
PMID: 22520264 (View on PubMed)

Goldberg CJ, Gillic I, Connaughton O, Moore DP, Fogarty EE, Canny GJ, Dowling FE. Respiratory function and cosmesis at maturity in infantile-onset scoliosis. Spine (Phila Pa 1976). 2003 Oct 15;28(20):2397-406. doi: 10.1097/01.BRS.0000085367.24266.CA.

Reference Type BACKGROUND
PMID: 14560091 (View on PubMed)

Thompson GH, Akbarnia BA, Campbell RM Jr. Growing rod techniques in early-onset scoliosis. J Pediatr Orthop. 2007 Apr-May;27(3):354-61. doi: 10.1097/BPO.0b013e3180333eea.

Reference Type BACKGROUND
PMID: 17414025 (View on PubMed)

Bess S, Akbarnia BA, Thompson GH, Sponseller PD, Shah SA, El Sebaie H, Boachie-Adjei O, Karlin LI, Canale S, Poe-Kochert C, Skaggs DL. Complications of growing-rod treatment for early-onset scoliosis: analysis of one hundred and forty patients. J Bone Joint Surg Am. 2010 Nov 3;92(15):2533-43. doi: 10.2106/JBJS.I.01471. Epub 2010 Oct 1.

Reference Type BACKGROUND
PMID: 20889912 (View on PubMed)

Caldas JC, Pais-Ribeiro JL, Carneiro SR. General anesthesia, surgery and hospitalization in children and their effects upon cognitive, academic, emotional and sociobehavioral development - a review. Paediatr Anaesth. 2004 Nov;14(11):910-5. doi: 10.1111/j.1460-9592.2004.01350.x.

Reference Type BACKGROUND
PMID: 15500489 (View on PubMed)

Kain ZN, Mayes LC, O'Connor TZ, Cicchetti DV. Preoperative anxiety in children. Predictors and outcomes. Arch Pediatr Adolesc Med. 1996 Dec;150(12):1238-45. doi: 10.1001/archpedi.1996.02170370016002.

Reference Type BACKGROUND
PMID: 8953995 (View on PubMed)

Akbarnia BA, Breakwell LM, Marks DS, McCarthy RE, Thompson AG, Canale SK, Kostial PN, Tambe A, Asher MA; Growing Spine Study Group. Dual growing rod technique followed for three to eleven years until final fusion: the effect of frequency of lengthening. Spine (Phila Pa 1976). 2008 Apr 20;33(9):984-90. doi: 10.1097/BRS.0b013e31816c8b4e.

Reference Type BACKGROUND
PMID: 18427320 (View on PubMed)

Feinberg N, Matsumoto H, Hung CW, St Hilaire T, Pawelek J, Sawyer JR, Akbarnia BA, Skaggs DL, Roye BD, Roye DP Jr, Vitale MG. Expert Consensus and Equipoise: Planning a Randomized Controlled Trial of Magnetically Controlled Growing Rods. Spine Deform. 2018 May-Jun;6(3):303-307. doi: 10.1016/j.jspd.2017.11.002.

Reference Type BACKGROUND
PMID: 29735141 (View on PubMed)

Other Identifiers

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PSSG0038

Identifier Type: -

Identifier Source: org_study_id

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