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Natural History of Spinal Muscular Atrophy Type 1 in Taiwan

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: June 9, 2015
Last Update Posted: June 22, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Taipei Medical University WanFang Hospital
Taipei Veterans General Hospital, Taiwan
Mackay Memorial Hospital
Chang Gung Memorial Hospital
China Medical University Hospital
Chung Shan Medical University
Changhua Christian Hospital
Taichung Veterans General Hospital
Chi Mei Medical Hospital
Cathay General Hospital
Shin Kong Wu Ho-Su Memorial Hospital
Kaohsiung Veterans General Hospital.
National Cheng-Kung University Hospital
Buddhist Tzu Chi General Hospital
Kaohsiung Medical University
Taipei Medical University Shuang Ho Hospital
National Taiwan University Hospital
Taipei Medical University Hospital
Information provided by (Responsible Party):
Kaohsiung Medical University Chung-Ho Memorial Hospital

Spinal muscular atrophy (SMA) is an autosomal recessive disorder characterized by degeneration of motor neurons in the spinal cord and caused by mutations of the survival motor neuron 1 (SMN1) gene.

The investigators will conduct a systematic review of the contents and activities collected via a comprehensive case report form. Patients who fulfilled diagnostic criteria for SMA type 1 will be reviewed retrospectively.

Natural History of Type 1 Spinal Muscular Atrophy (SMA)

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Retrospective
Official Title: Natural History of Spinal Muscular Atrophy Type 1 in Taiwan

Resource links provided by NLM:

Further study details as provided by Kaohsiung Medical University Chung-Ho Memorial Hospital:

Primary Outcome Measures:
  • Age of death [ Time Frame: up to 36 years ]
    participants will be followed till the age of death

Secondary Outcome Measures:
  • Age of permanent ventilation [ Time Frame: up to 36 years ]
    participants will be followed till ventilation used 24 hours/day

Other Outcome Measures:
  • Clinical outcome with the following measures-1 [ Time Frame: up to 36 years ]
    Age of onset

  • Clinical outcome with the following measures-2 [ Time Frame: up to 36 years ]
    Copy numbers of SMN2 gene

  • Clinical outcome with the following measures-3 [ Time Frame: up to 36 years ]
    Methods of Nutritional Supportive

  • Clinical outcome with the following measures-4 [ Time Frame: up to 36 years ]
    Methods of Respiratory Supportive

Enrollment: 111
Study Start Date: June 2015
Study Completion Date: December 2015
Primary Completion Date: December 2015 (Final data collection date for primary outcome measure)
type 1 spinal muscular atrophy
The age of onset of patients with type 1 SMA is below 6 months of age.

Detailed Description:
The primary objective of this study is to investigate the natural history of patients with spinal muscular atrophy (SMA) type 1 in Taiwan. This study will provide further insights into the clinical course and pathogenesis of SMA. Several analyses will be conducted regarding overall survival, respiratory support, feeding and nutritional support. The following outcome variables will be examined: correlation between SMA genotype and phenotype, survival, age of onset, and age of confirmed diagnosis, proportion of patients using non-invasive and invasive respiratory support, time to first use of respiratory support, proportion of patients on permanent ventilation, and time to permanent ventilation, number and average duration of hospitalizations, proportion of patients with gastrostomy, number of non-serious and serious respiratory infections, trend of growth parameter (e.g., body weight).

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Ages Eligible for Study:   up to 36 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Spinal muscular atrophy Type 1

Inclusion Criteria:

  • Jan. 1979~ 30 Jun. 2014 diagnosed with Spinal Muscular Atrophy (SMA)Type 1
  • Onset of paralytic floppy infant less than 6 months of age
  • Generalized hypotonia and symmetric weakness, which weakness is more severe in proximal than distal part of extremities
  • Weakness in the legs is greater than in the arms
  • Tendon reflexes are absent
  • Neurogenic changes in electromyogram and/or muscle pathology
  • SMN1 gene deletion or mutation

Exclusion Criteria:

  • Non-5q SMA (no deletion or mutation of SMN1 gene)
  • SMA type 2, type 3 or type 4 (onset of SMA after 6 months of age)
  Contacts and Locations
No Contacts or Locations Provided
  More Information

Responsible Party: Kaohsiung Medical University Chung-Ho Memorial Hospital
ClinicalTrials.gov Identifier: NCT02466529     History of Changes
Other Study ID Numbers: SMA-NHR10311
First Submitted: June 2, 2015
First Posted: June 9, 2015
Last Update Posted: June 22, 2017
Last Verified: February 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Keywords provided by Kaohsiung Medical University Chung-Ho Memorial Hospital:
type 1 spinal muscular atrophy (SMA)

Additional relevant MeSH terms:
Muscular Atrophy
Muscular Atrophy, Spinal
Pathological Conditions, Anatomical
Neuromuscular Manifestations
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Spinal Cord Diseases
Central Nervous System Diseases
Motor Neuron Disease
Neurodegenerative Diseases
Neuromuscular Diseases