Study Stopped
Lack of patient interest
Study of Resting and Exercising Body Functioning in Freeman-Sheldon Syndrome and Related Conditions
FSS-EDICT I
Freeman-Sheldon Syndrome Evaluation and Diagnosis in Clinical Settings (FSS-EDICT) I: a Case-Control, Cross-Sectional Study of Baseline and Stress Physiology Parameters
2 other identifiers
observational
N/A
1 country
1
Brief Summary
The hypotheses of the present study of Freeman-Sheldon syndrome (FSS) and related conditions are: (1) that exercise capacity is lower in FSS patients versus normal controls, and the lower exercise capacity is due to changes in the muscles' normal structure and an inability of sufficient quantity of the energy molecule to bind to muscle; (2) this muscle problem reduces amount of air that can get in the lung and amount of oxygen carried in the blood, which then has the effect of increasing heart and respiration rates, blood pressure, and deep body temperature, and produces muscle rigidity; (3) the events noted above, when they occur during cardiac stress testing, are related to a problem similar to malignant hyperthermia (MH) reported in some muscle disorders without use of drugs known to cause MH. MH (a life-threatening metabolic reaction that classically is triggered when susceptible persons receive certain drugs used in anaesthesia.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
Started Mar 2014
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 26, 2011
CompletedFirst Posted
Study publicly available on registry
March 2, 2011
CompletedStudy Start
First participant enrolled
March 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2022
CompletedJune 6, 2022
June 1, 2022
8.3 years
February 26, 2011
June 1, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Heart rate
Increased heart rate, measured electrocardiographically, is used as an index of cardiovascular strain imposed by needs during exercise and exaggerated by Freeman-Sheldon and related conditions.
Evaluated at rest and while exercising, during two study visits (lasting an average of 1-3 hours)
Oxygen Consumption
Oxygen consumption, measured by ventilation of expired oxygen, is used as a measure of physiological strain imposed by metabolic needs during exercise and exaggerated by Freeman-Sheldon and related conditions.
Evaluated at rest and while exercising, during two study visits (lasting an average of 1-3 hours)
Secondary Outcomes (12)
Non-Invasive Arterial Blood Pressure
Evaluated at rest and while exercising, during two study visits (lasting an average of 1-3 hours)
Spirometry (Forced Expiratory Volume/Forced Vital Capacity)
Evaluated before and after exercise, during two study visits (lasting an average of 1-3 hours)
Saturation of Peripheral Oxygen
Evaluated at rest and while exercising, during two study visits (lasting an average of 1-3 hours)
Respiratory Rate
Evaluated at rest and while exercising, during two study visits (lasting an average of 1-3 hours)
Heart Rhythm
Evaluated at rest and while exercising, during two study visits (lasting an average of 1-3 hours)
- +7 more secondary outcomes
Other Outcomes (2)
Body Composition
Evaluated before exercise, during two study visits (lasting an average of 1-3 hours)
Hand Grip Strength
Evaluated during the first of two study visits
Study Arms (2)
Syndrome Group
Individuals with Freeman-Sheldon, Sheldon-Hall, distal arthrogryposis type 1, or distal arthrogryposis type 3
Control Group
Healthy individuals
Interventions
Completed during the clinical examination and exercise test by the researchers, lactate, glucose, and free and total adenosine triphosphate blood levels are determined at rest and during exercise.
During exercise, heart and lung function are monitored for changes caused by exercise, which increases the body's need for oxygen and puts extra demands on the heart. In this study, testing is done using a cycle ergometer and conducted according to the standardised exponential exercise protocol (STEEP).
Evaluated before clinical examination, it is a checklist of medical problems.
Completed during the clinical examination by the researchers, it is a structured approach to evaluation of muscles, joints, arms, thighs, and legs.
Completed during the clinical examination by the researchers, it is a structured approach to a full physical examination (minus breasts, genitalia, or rectum).
Completed during the clinical examination by researchers, it is a structured approach to evaluation of a person's walking.
Completed during the clinical examination by the researchers, it is a general evaluation of mental health status.
Eligibility Criteria
Patients world-wide are welcome, so-long as they have a qualifying diagnosis. Healthy controls are welcome world-wide, as well.
You may qualify if:
- Freeman-Sheldon syndrome,
- Sheldon-Hall syndrome,
- Distal arthrogryposis type 1, or
- Distal arthrogryposis type 3
- Deceased patients with enough clinical information available to satisfy study requirements
You may not qualify if:
- Individuals not confirmed to have a condition under study
- Deceased patients without enough clinical information available to satisfy study requirements
- Patients with other anomalies, not having one of the above syndromes
- Patients or parents of minor children not willing to give consent
- Mature female patients who are pregnant or breast-feeding will be reassessed for consideration for enrolment.
- Mature female patients who are currently experiencing menses will be reassessed for consideration for enrolment.
- Patients with active, acute comorbid illness will be reassessed for consideration for enrolment.
- Subjects must be healthy and free of active disease.
- Subject or parent of minor child must be willing to give consent.
- Subjects must fall within the age-bracket to be matched with a Syndrome Group patient already screened and enroled in the study
- Subjects must be non-tobacco users and non-drinkers.
- Subjects exceptional for their age in body weight, stature, or habitus according to commonly accepted guidelines
- Subjects with active psychiatric illness, as manifested by abnormal mental status examination
- Subjects with active physical illness, especially respiratory or cardiac problem, as manifested by abnormal findings on physical examination
- Subjects with significant diagnosis of a constitutional disease or genetic disorder
- +7 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Freeman-Sheldon Research Group, Inc. Headquarters
Buckhannon, West Virginia, 26201, United States
Related Publications (9)
Vanek J, Janda J, Amblerova V, Losan F. Freeman-Sheldon syndrome: a disorder of congenital myopathic origin? J Med Genet. 1986 Jun;23(3):231-6. doi: 10.1136/jmg.23.3.231.
PMID: 3723551BACKGROUNDToydemir RM, Rutherford A, Whitby FG, Jorde LB, Carey JC, Bamshad MJ. Mutations in embryonic myosin heavy chain (MYH3) cause Freeman-Sheldon syndrome and Sheldon-Hall syndrome. Nat Genet. 2006 May;38(5):561-5. doi: 10.1038/ng1775. Epub 2006 Apr 16.
PMID: 16642020BACKGROUNDStevenson DA, Carey JC, Palumbos J, Rutherford A, Dolcourt J, Bamshad MJ. Clinical characteristics and natural history of Freeman-Sheldon syndrome. Pediatrics. 2006 Mar;117(3):754-62. doi: 10.1542/peds.2005-1219.
PMID: 16510655BACKGROUNDPortillo AL, Chamberlain RL, McCormick RJ, Poling MI. Histopathological and Operative Findings in a Severe Case of Freeman-Sheldon Syndrome: Implications for Nosology and Therapy. (Unpubl.) 2010.
BACKGROUNDLitman RS, Rosenberg H. Malignant hyperthermia: update on susceptibility testing. JAMA. 2005 Jun 15;293(23):2918-24. doi: 10.1001/jama.293.23.2918.
PMID: 15956637BACKGROUNDMcCormick RJ. A Proposal for a Thesis: Heat Tolerance in Exercising Lean and Obese Middle-Aged Men. DEd diss., the Pennsylvania State University, 1973.
BACKGROUNDMyhill S, Booth NE, McLaren-Howard J. Chronic fatigue syndrome and mitochondrial dysfunction. Int J Clin Exp Med. 2009;2(1):1-16. Epub 2009 Jan 15.
PMID: 19436827BACKGROUNDNorthridge DB, Grant S, Ford I, Christie J, McLenachan J, Connelly D, McMurray J, Ray S, Henderson E, Dargie HJ. Novel exercise protocol suitable for use on a treadmill or a bicycle ergometer. Br Heart J. 1990 Nov;64(5):313-6. doi: 10.1136/hrt.64.5.313.
PMID: 2245110BACKGROUNDFranklin B, Fern A, Fowler A, Spring T, Dejong A. Exercise physiologist's role in clinical practice. Br J Sports Med. 2009 Feb;43(2):93-8. doi: 10.1136/bjsm.2008.055202. Epub 2008 Dec 2.
PMID: 19050005BACKGROUND
Biospecimen
Blood samples will be taken but no retention is expected.
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 26, 2011
First Posted
March 2, 2011
Study Start
March 1, 2014
Primary Completion
June 1, 2022
Study Completion
June 1, 2022
Last Updated
June 6, 2022
Record last verified: 2022-06
Data Sharing
- IPD Sharing
- Will not share
We do not intend to share any individual participant data.