Clinical Survey Study to Assess Physical Function and the Incidence of Hypoglycemia in Participants With Glycogen Storage Disease Type III
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ClinicalTrials.gov Identifier: NCT05196165 |
Recruitment Status :
Terminated
(Sponsor decision not related to safety concerns)
First Posted : January 19, 2022
Last Update Posted : March 8, 2023
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Condition or disease | Intervention/treatment |
---|---|
Glycogen Storage Disease Type III | Other: No Intervention |
Study Type : | Observational |
Actual Enrollment : | 14 participants |
Observational Model: | Case-Only |
Time Perspective: | Prospective |
Official Title: | Clinical Survey Study to Assess Physical Function and the Incidence of Hypoglycemia in Patients 1 Year of Age and Over With GSD III |
Actual Study Start Date : | May 20, 2022 |
Actual Primary Completion Date : | March 2, 2023 |
Actual Study Completion Date : | March 2, 2023 |

- Other: No Intervention
No investigational product (IP) will be administered in this study
- Number of Hypoglycemic Events During the 26-week Observation Period [ Time Frame: Week 26 ]
- Infant Toddler Quality of Life Questionnaire 47-item Short Form (ITQOL-SF47) Scores [ Time Frame: Up to Week 26 ]
- Patient-reported Outcomes Measurement Information System (PROMIS) Questionnaires Scores of the Following Domain: Fatigue [ Time Frame: Up to Week 26 ]
- Patient-reported Outcomes Measurement Information System (PROMIS) Questionnaires Scores of the Following Domain: Physical Function in Adults [ Time Frame: Up to Week 26 ]
- Patient-reported Outcomes Measurement Information System (PROMIS) Questionnaires Scores of the Following Domain: Physical Activity in 5-17 Year Olds [ Time Frame: Up to Week 26 ]
- Short Form 10 (SF10) Domain Scores [ Time Frame: Up to Week 26 ]
- Short Form 10 (SF10) Component Scores for Children [ Time Frame: Up to Week 26 ]
- Short Form 36 (SF-36) Component Scores for Adults [ Time Frame: Up to Week 26 ]
- Short Form 36 (SF-36) Domain Scores [ Time Frame: Up to Week 26 ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 1 Year and older (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Key Inclusion Criteria:
- Diagnosis of GSD III, confirmed by amylo-alpha-1,6-glucosidase 4-alpha-glucanotransferase (AGL) sequencing or glycogen debranching enzyme (GDE) enzymatic testing
Key Exclusion Criteria:
- Participant is unwilling to remain blinded to continuous glucose monitor (CGM) data for the first 13 weeks of the study, or the Investigator determines that blinding would compromise subject safety
- Presence or history of any condition that, in the view of the Investigator, would interfere with participation or pose undue risk
- Use of any IP or investigational medical device within 30 days or 5.5 half-lives, whichever is longer, prior to screening, or during the study
Note: Other criteria may apply per protocol

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05196165
United States, Pennsylvania | |
Children's Hospital of Philadelphia | |
Philadelphia, Pennsylvania, United States, 19104 | |
United States, Texas | |
Baylor College of Medicine | |
Houston, Texas, United States, 77030 | |
University of Texas | |
Houston, Texas, United States, 77030 | |
Netherlands | |
University of Groningen Beatrix Children's Hospital | |
Groningen, Netherlands, 9700RB |
Study Director: | Medical Director | Ultragenyx Pharmaceutical Inc |
Responsible Party: | Ultragenyx Pharmaceutical Inc |
ClinicalTrials.gov Identifier: | NCT05196165 |
Other Study ID Numbers: |
UX053-CL002 |
First Posted: | January 19, 2022 Key Record Dates |
Last Update Posted: | March 8, 2023 |
Last Verified: | March 2023 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Glycogen Storage Disease Glycogen Storage Disease Type III Hypoglycemia Disease Glucose Metabolism Disorders |
Metabolic Diseases Pathologic Processes Carbohydrate Metabolism, Inborn Errors Metabolism, Inborn Errors Genetic Diseases, Inborn |