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

Early-Onset Scoliosis Deformity of Spine Clinical Trial

— MCGR  

Official title:

Hospital-Based Cluster Stratified Randomization Control Trial: Determination of Best Magnetically Controlled Growing Rods Implementation Strategy Using Distraction Intervals

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04058561
• Other study ID #: PSSG0038
• Status: Recruiting
• Phase: N/A
• Start date: November 1, 2019
• Est. completion date: December 31, 2026

Study information

• Verified date: April 2024
• Source: Pediatric Spine Foundation
• Contact: Regina Woon
• Phone: 6266395919
• Email: rwoon[@]childrensspinefoundation.org
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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.

Description:

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.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 210
• Est. completion date: December 31, 2026
• Est. primary completion date: December 31, 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 5 Years to 9 Years

Eligibility

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

Related Conditions & MeSH terms

• Congenital Abnormalities
• Early-Onset Scoliosis Deformity of Spine
• Scoliosis

Intervention

Device:
• 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.

Locations

Country	Name	City	State
Canada	IWK Health Centre	Halifax	Nova Scotia
Finland	Turku University Hospital, Department of Pediatric Orthopaedic Surgery	Turku
Hong Kong	The University of Hong Kong, Department of Orthopaedics and Traumatology	Hong Kong
United States	C.S. Mott Children's Hospital, University of Michigan	Ann Arbor	Michigan
United States	Children's Physican Group Orthopaedics/Children's Healthcare of Atlanta	Atlanta	Georgia
United States	Children's Hospital Colorado	Aurora	Colorado
United States	Johns Hopkins University	Baltimore	Maryland
United States	Medical University of South Carolina	Charleston	South Carolina
United States	Rainbow Babies and Children's Hospital	Cleveland	Ohio
United States	Texas Scottish Rite Hospital	Dallas	Texas
United States	University of Florida	Gainesville	Florida
United States	Children's Hospital Los Angeles	Los Angeles	California
United States	Campbell Clinic/Le Bonheur Children's Hospital	Memphis	Tennessee
United States	Columbia University Medical Center	New York	New York
United States	Shriners Hospitals for Children - Philadelphia	Philadelphia	Pennsylvania
United States	The Children's Hospital of Philadelphia	Philadelphia	Pennsylvania
United States	Washington University School of Medicine, St. Louis Children's Hospital	Saint Louis	Missouri
United States	Rady Children's Hospital - San Diego	San Diego	California
United States	Children's National Health System	Washington	District of Columbia
United States	Alfred I. DuPont Hospital for Children	Wilmington	Delaware

Sponsors (2)

Lead Sponsor	Collaborator
Pediatric Spine Foundation	Columbia University

Countries where clinical trial is conducted

United States,  Canada,  Finland,  Hong Kong, 

References & Publications (13)

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

* Note: There are 13 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Spinal growth	T1-S1 growth	3 years
Secondary	Complications	Wound related, implant related, intraoperative complications, pseudoarthrosis, neurologic injury/impairment, pulmonary, pain, non-surgical, other	3 years
Secondary	Curve correction	Change in magnitude of coronal spinal curvature from pre-op to post-op at 3 years	3 years
Secondary	Health related quality of life: questionnaire	Early onset scoliosis 24 item questionnaire; This is a patient reported outcome measure for quality of life, parental/financial burden, and satisfaction (4 main domains). There are 11 sub-domains: General health, pain/discomfort, pulmonary function, transfer, physical function, daily living, fatigue/energy level, emotion, parental impact, financial impact, and satisfaction. Within satisfaction, there is child and parent satisfaction. The raw score for each item is from 1-5. This can be turned into scale scores of 0-100. The higher values represent a better outcome. Average sub-domain scores as well as domain scores can be calculated.	3 years
Secondary	Burden of care	Early onset scoliosis 24 item questionnaire;This is a patient reported outcome measure for quality of life, parental/financial burden, and satisfaction (4 main domains). There are 11 sub-domains: General health, pain/discomfort, pulmonary function, transfer, physical function, daily living, fatigue/energy level, emotion, parental impact, financial impact, and satisfaction. Within satisfaction, there is child and parent satisfaction. The raw score for each item is from 1-5. This can be turned into scale scores of 0-100. The higher values represent a better outcome. Average sub-domain scores as well as domain scores can be calculated.	3 years