NCT02968264

Brief Summary

The aim is to conduct a prospective multi-centre international inception cohort study with an enrollment goal of 3,000 TOF patients and 2 year follow-up post-repair. The proposed sample size and methodology will result in statistically powerful results to allow for evidence-based change to current TOF surgical practices.

Trial Health

98
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,108

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jun 2015

Longer than P75 for all trials

Geographic Reach
12 countries

20 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 8, 2015

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

January 4, 2016

Completed
11 months until next milestone

First Posted

Study publicly available on registry

November 18, 2016

Completed
5.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 15, 2022

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2022

Completed
Last Updated

December 21, 2022

Status Verified

December 1, 2022

Enrollment Period

6.8 years

First QC Date

January 4, 2016

Last Update Submit

December 20, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • RV physiology and morphology

    To determine the association between baseline morphology, surgical repair technique (various surgical strategies for VSD closure and managing the RVOT), and RV physiology and morphology at 2 years obtained from echocardiogram studies.

    2 years post-repair

Secondary Outcomes (7)

  • Number of patients undergoing various palliation procedures and surgical repair strategies

    2 years

  • Cardiovascular mortality rate

    30 days and 2 years after repair

  • Rate of palliation failure

    2 years

  • Effect of palliation procedures on cardiac morphology

    2 years

  • Post-operative restrictive physiology

    2 years

  • +2 more secondary outcomes

Study Arms (1)

TOF participants

Tetralogy of fallot patients at any age

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

TOF patients of any age undergoing their first cardiac intervention. Please refer to the eligibility criteria for more details.

You may qualify if:

  • TOF with RVOT stenosis. TOF is defined as anterio-cephalad deviation of the ventricular outlet septum with no more than 50% aortic override and a single outflow VSD.
  • TOF with pulmonary atresia and confluent pulmonary arteries.
  • Admitted with intent to treat (i.e. patient planned to undergo a primary or staged repair).
  • Patients with coronary artery anomalies, right aortic arch, and 22q11 deletion may be included

You may not qualify if:

  • TOF with absent pulmonary valve
  • Other major cardiac anomalies such as AVSD, multiple VSDs, right atrial isomerism, and MAPCAs. In this instance, the definition of MAPCAs does not include dilated bronchial collateral arteries.
  • Unbalanced ventricles precluding biventricular repair
  • Major genetic abnormalities/syndromes e.g. trisomy 13,18, and 21
  • Major extra cardiac anomalies e.g. diaphragmatic hernia, omphalocele, absent sternum, cerebral palsy
  • Infective endocarditis as an indication for intra-cardiac repair
  • Stroke in the last 30 days prior to palliation or intra-cardiac repair
  • Known diagnosis of HIV or hepatitis B
  • Any previous cardiac procedures
  • Patient's circumstance that precludes completion of follow-up telephone call and/or obtaining information from the 2-year cardiology follow-up

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (20)

Nemours Children's Hospital

Orlando, Florida, 32827, United States

Location

Morgan Stanley Children's Hospital

New York, New York, 10032, United States

Location

Royal Children's Hospital

Parkville, Victoria, 3052, Australia

Location

Hospital for Sick Children

Toronto, Ontario, M5G 1X8, Canada

Location

West China Hospital

Chengdu, Sichuan, 610041, China

Location

Beijing Fuwai Hospital

Beijing, 100037, China

Location

Guangzhou Women and Children's Medical Center

Guangdong, 510623, China

Location

Guangdong Cardiovascular Institute

Guangdong, China

Location

Shanghai Children's Medical Centre

Shanghai, China

Location

Shanghai Xinhua Hospital

Shanghai, China

Location

Fortis Escorts Heart Institute

New Delhi, National Capital Territory of Delhi, 110025, India

Location

Kokilaben Dhirubhai Ambani Hospital & Medical Research Institutev

Mumbai, 400 053, India

Location

National Cardiovascular Center Harapan Kita

Jakarta, Indonesia

Location

Okayama University Hospital

Okayama, Japan

Location

Manmohan Cardiothoracic Vascular and Transplant Center

Kathmandu, 977, Nepal

Location

Academician E.N. Meshalkin Research

Novosibirsk, Russia

Location

King Abdulaziz University Hospital

Jeddah, Mecca Region, 21589, Saudi Arabia

Location

King Faisal Specialist Hospital and Research Centre - Jeddah

Jeddah, 21499, Saudi Arabia

Location

Asan Medical Center

Seoul, 05505, South Korea

Location

Children's Cardiac Center - Ukraine

Kyiv, Ukraine

Location

Related Publications (5)

  • Sarris GE, Comas JV, Tobota Z, Maruszewski B. Results of reparative surgery for tetralogy of Fallot: data from the European Association for Cardio-Thoracic Surgery Congenital Database. Eur J Cardiothorac Surg. 2012 Nov;42(5):766-74; discussion 774. doi: 10.1093/ejcts/ezs478.

    PMID: 23087090BACKGROUND
  • Al Habib HF, Jacobs JP, Mavroudis C, Tchervenkov CI, O'Brien SM, Mohammadi S, Jacobs ML. Contemporary patterns of management of tetralogy of Fallot: data from the Society of Thoracic Surgeons Database. Ann Thorac Surg. 2010 Sep;90(3):813-9; discussion 819-20. doi: 10.1016/j.athoracsur.2010.03.110.

    PMID: 20732501BACKGROUND
  • Gatzoulis MA, Balaji S, Webber SA, Siu SC, Hokanson JS, Poile C, Rosenthal M, Nakazawa M, Moller JH, Gillette PC, Webb GD, Redington AN. Risk factors for arrhythmia and sudden cardiac death late after repair of tetralogy of Fallot: a multicentre study. Lancet. 2000 Sep 16;356(9234):975-81. doi: 10.1016/S0140-6736(00)02714-8.

    PMID: 11041398BACKGROUND
  • d'Udekem Y, Galati JC, Rolley GJ, Konstantinov IE, Weintraub RG, Grigg L, Ramsay JM, Wheaton GR, Hope S, Cheung MH, Brizard CP. Low risk of pulmonary valve implantation after a policy of transatrial repair of tetralogy of Fallot delayed beyond the neonatal period: the Melbourne experience over 25 years. J Am Coll Cardiol. 2014 Feb 18;63(6):563-8. doi: 10.1016/j.jacc.2013.10.011. Epub 2013 Oct 30.

    PMID: 24513776BACKGROUND
  • Pondorfer P YT, Cheung M, Ashburn D, Manlhiot C, McCrindle B, Mertens L, Grosse-Wortmann L, Redington A, Van Arsdell G. Abstract 18833: Annulus Preservation Strategy Improves Late Outcomes in Tetralogy of Fallot: An Anatomical Equivalency Study. Circulation. 2014;130:A18833.

    BACKGROUND

MeSH Terms

Conditions

Tetralogy of FallotHeart Defects, Congenital

Condition Hierarchy (Ancestors)

Cardiovascular AbnormalitiesCardiovascular DiseasesHeart DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

  • Glen Van Arsdell, MD

    University of California, Los Angeles

    PRINCIPAL INVESTIGATOR
  • Richard Whitlock, MD, PhD

    Population Health Research Institute

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 4, 2016

First Posted

November 18, 2016

Study Start

June 8, 2015

Primary Completion

March 15, 2022

Study Completion

July 1, 2022

Last Updated

December 21, 2022

Record last verified: 2022-12

Data Sharing

IPD Sharing
Will not share

Locations