Cystic Fibrosis Clinical Trial
Official title:
Nutritional Impact of Orkambi Treatment in 2 to 5 Year Old Children Homozygous for F508del Mutations
NCT number | NCT03795363 |
Other study ID # | 18-015669 |
Secondary ID | |
Status | Completed |
Phase | |
First received | |
Last updated | |
Start date | April 10, 2019 |
Est. completion date | June 16, 2021 |
Verified date | December 2021 |
Source | Children's Hospital of Philadelphia |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
The purpose of this observational research study is to determine the effects of clinically prescribed Orkambi treatment on 2 to 5 year old children homozygous for the F508del Mutations in the Cystic fibrosis transmembrane conductance regulator (CFTR) gene on sleeping energy expenditure, growth status and gut health and function.
Status | Completed |
Enrollment | 28 |
Est. completion date | June 16, 2021 |
Est. primary completion date | June 16, 2021 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 2 Years to 5 Years |
Eligibility | Inclusion Criteria: - Cystic fibrosis and homozygous for F508del mutations, approved for treatment - Age: 2.0 to 5.9 years - In usual state of good health - A clinical decision has been made for subject to begin Orkambi treatment - Family committed to the 6 to 8 month study protocol with visits to the Children's Hospital of Philadelphia (CHOP) that will last 2-3 days for the baseline visit (Visit 1) prior to Orkambi and the 24 week visit (Visit 3) after clinically prescribed Orkambi treatment has begun, and will last up to 2 days for the 12 week visit (Visit 2) after Orkambi treatment has begun. Exclusion Criteria: - On parenteral nutrition - Use of any medications that inhibit or induce cytochrome P450 (CYP) 3A - Liver function tests elevated above 3x the reference range for age and sex - Lung disease considered severe based on clinical impression by home CF center. - Other illness affecting growth or nutritional status - Other contraindications described for Orkambi therapy |
Country | Name | City | State |
---|---|---|---|
United States | Children's Hospital of Philadelphia | Philadelphia | Pennsylvania |
Lead Sponsor | Collaborator |
---|---|
Children's Hospital of Philadelphia | Vertex Pharmaceuticals Incorporated |
United States,
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Borowitz D, Lin R, Baker SS. Comparison of monoclonal and polyclonal ELISAs for fecal elastase in patients with cystic fibrosis and pancreatic insufficiency. J Pediatr Gastroenterol Nutr. 2007 Feb;44(2):219-23. — View Citation
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Flume PA, Liou TG, Borowitz DS, Li H, Yen K, Ordoñez CL, Geller DE; VX 08-770-104 Study Group. Ivacaftor in subjects with cystic fibrosis who are homozygous for the F508del-CFTR mutation. Chest. 2012 Sep;142(3):718-724. doi: 10.1378/chest.11-2672. — View Citation
Milla CE, Ratjen F, Marigowda G, Liu F, Waltz D, Rosenfeld M; VX13-809-011 Part B Investigator Group *. Lumacaftor/Ivacaftor in Patients Aged 6-11 Years with Cystic Fibrosis and Homozygous for F508del-CFTR. Am J Respir Crit Care Med. 2017 Apr 1;195(7):912-920. doi: 10.1164/rccm.201608-1754OC. — View Citation
O'Connor MG, Seegmiller A. The effects of ivacaftor on CF fatty acid metabolism: An analysis from the GOAL study. J Cyst Fibros. 2017 Jan;16(1):132-138. doi: 10.1016/j.jcf.2016.07.006. Epub 2016 Jul 26. — View Citation
Schofield WN. Predicting basal metabolic rate, new standards and review of previous work. Hum Nutr Clin Nutr. 1985;39 Suppl 1:5-41. — View Citation
Stallings VA, Sainath N, Oberle M, Bertolaso C, Schall JI. Energy Balance and Mechanisms of Weight Gain with Ivacaftor Treatment of Cystic Fibrosis Gating Mutations. J Pediatr. 2018 Oct;201:229-237.e4. doi: 10.1016/j.jpeds.2018.05.018. Epub 2018 Jul 18. — View Citation
Van Goor F, Hadida S, Grootenhuis PD, Burton B, Cao D, Neuberger T, Turnbull A, Singh A, Joubran J, Hazlewood A, Zhou J, McCartney J, Arumugam V, Decker C, Yang J, Young C, Olson ER, Wine JJ, Frizzell RA, Ashlock M, Negulescu P. Rescue of CF airway epithelial cell function in vitro by a CFTR potentiator, VX-770. Proc Natl Acad Sci U S A. 2009 Nov 3;106(44):18825-30. doi: 10.1073/pnas.0904709106. Epub 2009 Oct 21. — View Citation
Wainwright CE, Elborn JS, Ramsey BW. Lumacaftor-Ivacaftor in Patients with Cystic Fibrosis Homozygous for Phe508del CFTR. N Engl J Med. 2015 Oct 29;373(18):1783-4. doi: 10.1056/NEJMc1510466. — View Citation
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* Note: There are 13 references in all — Click here to view all references
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Dietary Intake | Three day weighed food record will be obtained and to determine changes in dietary caloric intake and micro and macronutrient intake over the course of 24 weeks on orkambi treatment. | 24 Weeks | |
Other | Serum fat soluble vitamin levels | Investigators will examine the changes in serum fat soluble vitamin A, E, D and K concentration levels after 24 weeks of orkambi treatment. | 24 Weeks | |
Other | Changes in bile acid concentration levels | Investigators will examine changes in the concentration levels of 14 bile acid species in subjects over the course of 24 weeks on orkambi treatment. | 24 Weeks | |
Other | Changes in concentration levels of serum calprotectin | Investigators will examine changes in the concentration levels of serum calprotectin in subjects over the course of 24 weeks on orkambi treatment. | 24 Weeks | |
Other | Muscle-Fat Stores | Investigators will measure body composition to determine muscle and fat store changes over the course of 24 weeks on orkambi treatment compared to baseline. | 24 Weeks | |
Other | Growth status changes | Investigators will observe the changes in growth status over time. Growth status will be measured by determining the changes in three different measurements- length (cm), weight (kg) and head circumference (cm). Each value will be used to calculate BMI (kg/cm^2), which will be used in accordance with age to determine the growth velocity percentile of the subjects over the course of 24 weeks on orkambi treatment. The growth velocity percentile will be indicative of changes in growth status over time. | 24 Weeks | |
Primary | Sleeping or Resting Energy Expenditure | Investigators will examine the effects of 24 weeks of orkambi treatment on subject's SEE (sleeping energy expenditure) or REE (resting energy expenditure). Using indirect calorimetry, SEE/REE will be assessed using a computerized metabolic cart Vmax ENCORE at each protocol visit while the child is asleep or resting quietly. SEE/REE will be assessed in the morning if possible and careful note of previous feeding of the child, including the time of day, amount of food, and feeding interval prior to test. It will depend on the age of the subject, and if the subject still takes daily naps and is able to rest quietly without moving, if they will perform sleeping energy expenditure or resting energy expenditure. This will be one outcome measure for each subject, and it will depend on if the subject can nap (SEE) or rest quietly without moving (REE). | 24 Weeks | |
Primary | Anthropometric Assessment | Investigators will examine the effects of 24 weeks of orkambi treatment on subject's body mass index (BMI). Investigators will compare the results to BMI Z scores over 24 weeks compared to baseline. | 24 Weeks | |
Secondary | Fecal Elastase I/Pancreatic Function | Investigators will examine the effects of 24 weeks of orkambi treatment on subject's pancreatic function. Pancreatic function will be assessed at two visits by obtaining spot stool samples with fecal elastase 1. The concentration of fecal elastase I is indicative of pancreatic function. | 24 Weeks | |
Secondary | Fecal Calprotectin/Gut Inflammation | Investigators will examine the effects of 24 weeks of orkambi treatment on subject's fecal calprotectin concentration. Spot stool samples will be obtained to determine fecal calprotectin concentration, which is a marker for gut inflammation. | 24 Weeks | |
Secondary | Plasma Total Fatty Acids | Investigators will examine the effects of 24 weeks of orkambi treatment on subject's dietary fat absorption. A total plasma fatty acid panel will be assessed to measure the change in status of 22 fatty acids. | 24 Weeks |
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