Study Stopped
Inactive
Comparison of the Methylation Pattern of DNA in Buccal Swabs From Different Time Points
1 other identifier
observational
20
1 country
1
Brief Summary
A buccal swab will be taken using a cotton stick by rubbing it against the buccal mucosa. Samples will be taken from the same participant at different timepoints. DNA will be extracted from the buccal cells on the swabs using a commercial extraction kit and will be quantified by a nano-drop spectrophotometer. We will determine global and gene-specific methylation and hydroxymethylation alterations by UPLC/MS/MS. Hydrolyzed DNA into individual nucleosides will be analyzed for the quantitative measurement of 5-methylCytosine and 5-hydroxymethylCytosine on Triple Quadrupole UPLC/MS/MS platform. Secondly, specific methylation in the CpG islands of tumor suppressor and promoter genes, and genes involved in the oxidative stress pathways will be assessed by PCR-pyrosequencing.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Dec 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
October 31, 2014
CompletedFirst Posted
Study publicly available on registry
November 21, 2014
CompletedStudy Start
First participant enrolled
December 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2024
CompletedJuly 16, 2024
July 1, 2024
9.6 years
October 31, 2014
July 12, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
%Methylation (%)
5 weeks
Secondary Outcomes (1)
%Hydroxymethylation (%)
5 weeks
Study Arms (1)
Volunteers
30 volunteers, half men and half women Buccal swab
Interventions
Eligibility Criteria
Students and research staff
You may qualify if:
- Caucasian
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Universitaire Ziekenhuizen KU Leuvenlead
- KU Leuvencollaborator
Study Sites (1)
BIOMAT
Leuven, 3000, Belgium
Biospecimen
Buccal cells
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 31, 2014
First Posted
November 21, 2014
Study Start
December 1, 2014
Primary Completion
July 1, 2024
Study Completion
July 1, 2024
Last Updated
July 16, 2024
Record last verified: 2024-07