Clinical trial NCT01113216: Genetic Modifiers of Cystic Fibrosis Related Diabetes
Official title: Genetic Modifiers of Cystic Fibrosis Related Diabetes
Study type: OBSERVATIONAL
Overall status: ENROLLING_BY_INVITATION
Conditions: Cystic Fibrosis Related Diabetes
Keywords: CF
CFRD
Diabetes
Genetic Modifiers
Lead sponsor: Johns Hopkins University
Sponsor class: OTHER
Collaborators: name: Cystic Fibrosis Foundation
name: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
name: University of Minnesota
name: Northwestern University
First posted: 2010-04-29
Enrollment: 1500
Sex: ALL
Minimum age (years): 3
Maximum age (years): 99
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: FAMILY_BASED
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Individuals affected with Cystic Fibrosis and family members

Brief summary: This research is being done to find the genes and other factors that are responsible for differences among persons with cystic fibrosis. We are particularly interested in the factors that relate to the development of Cystic Fibrosis Related Diabetes (CFRD).

Detailed description: The study is recruiting people with cystic fibrosis (CF). The medical record is being extracted, and a blood sample is taken for DNA. The DNA samples are tested for variation both at the cystic fibrosis transmembrane conductance regulator (CFTR) gene (the CF gene) and over the entire rest of the genome. Using large numbers of people with CF, and knowing who does and does not have CFRD, we identify genetic variations that associate with CFRD. Knowing these variations allows us to better understand the causes of CFRD, and with enough information, better to predict CFRD and identify people at particularly high or low risk of CFRD. People participating in this study also have the option to participate in related studies of other metabolic traits in CF such as over- and underweight.

Eligibility criteria: Inclusion Criteria:

* Any person with Cystic Fibrosis and his/her parents.

Exclusion Criteria:

* None

Primary outcomes:
measure: Identification of Genes or other factors that influence the development of CFRD
timeFrame: 5 years
Secondary outcomes:
Other outcomes:
Locations:
city: Chicago
country: United States
facility: Children's Memorial Hospital
state: Illinois
city: Baltimore
country: United States
facility: Johns Hopkins Medicine
state: Maryland
city: Minneapolis
country: United States
facility: University of Minnesota
state: Minnesota
Study officials:
affiliation: Johns Hopkins University
name: Scott M Blackman, MD, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Aksit MA, Pace RG, Vecchio-Pagan B, Ling H, Rommens JM, Boelle PY, Guillot L, Raraigh KS, Pugh E, Zhang P, Strug LJ, Drumm ML, Knowles MR, Cutting GR, Corvol H, Blackman SM. Genetic Modifiers of Cystic Fibrosis-Related Diabetes Have Extensive Overlap With Type 2 Diabetes and Related Traits. J Clin Endocrinol Metab. 2020 May 1;105(5):1401-15. doi: 10.1210/clinem/dgz102.
citation: Aksit MA, Ling H, Pace RG, Raraigh KS, Onchiri F, Faino AV, Pagel K, Pugh E, Stilp AM, Sun Q, Blue EE, Wright FA, Zhou YH, Bamshad MJ, Gibson RL, Knowles MR, Cutting GR, Blackman SM; CF Genome Project. Pleiotropic modifiers of age-related diabetes and neonatal intestinal obstruction in cystic fibrosis. Am J Hum Genet. 2022 Oct 6;109(10):1894-1908. doi: 10.1016/j.ajhg.2022.09.004.
citation: Blackman SM, Hsu S, Vanscoy LL, Collaco JM, Ritter SE, Naughton K, Cutting GR. Genetic modifiers play a substantial role in diabetes complicating cystic fibrosis. J Clin Endocrinol Metab. 2009 Apr;94(4):1302-9. doi: 10.1210/jc.2008-2186. Epub 2009 Jan 6.
citation: Blackman SM, Hsu S, Ritter SE, Naughton KM, Wright FA, Drumm ML, Knowles MR, Cutting GR. A susceptibility gene for type 2 diabetes confers substantial risk for diabetes complicating cystic fibrosis. Diabetologia. 2009 Sep;52(9):1858-65. doi: 10.1007/s00125-009-1436-2. Epub 2009 Jul 8.
citation: Blackman SM, Commander CW, Watson C, Arcara KM, Strug LJ, Stonebraker JR, Wright FA, Rommens JM, Sun L, Pace RG, Norris SA, Durie PR, Drumm ML, Knowles MR, Cutting GR. Genetic modifiers of cystic fibrosis-related diabetes. Diabetes. 2013 Oct;62(10):3627-35. doi: 10.2337/db13-0510. Epub 2013 May 13.