Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
732 participants
OBSERVATIONAL
1992-12-01
2010-12-01
Brief Summary
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The identification of specific oral bacteria and their functional relationship to pancreatic cancer will advance scientific knowledge on the etiology of pancreatic cancer. This could provide a new microbially-based research paradigm, possibly leading to new drug targets for this disease. Second, the oral bacteria may serve as a readily accessible, non-invasive biomarker for subsequent pancreatic cancer risk, which help to identify people at high risk of this disease. Finally, the identified oral bacteria may lead to microbial prophylactic preventions, with antibiotic therapy aimed at eradicating the specific species associated with increased cancer risk or, alternatively, combined with probiotics to introduce species that are associated with a decreased cancer risk. Thus, the study outcomes will lead to actionable means for pancreatic cancer prevention.
Detailed Description
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Conditions
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Study Design
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CASE_CONTROL
PROSPECTIVE
Study Groups
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Cases
subjects with histology-confirmed incident pancreatic cancer, with no prior history of cancer (except non-melanoma skin cancer), a valid consent, and pre-diagnostic oral wash samples.
16S rRNA gene sequencing assay
extraction of genomic DNA from oral samples using the Mobio DNA Isolation Kit. 16S rRNA amplicons covering variable regions V3 to V4 will be generated using primers (347F-5'GGAGGCAGCAGTRRGGAAT'-3' and 803R 5'-CTACCRGGGTATCTAATCC-3')66 incorporating adapters and a sample barcode sequence at PI's lab. Amplicons will be sequenced with the Roche 454 FLX Titanium sequencing system at the NYU genome technology center, following the manufacturer's specifications.
Control
selected by incidence density sampling63 among cohort members who had no cancer prior to selection, provided a valid consent and an oral wash. Controls were frequency matched to cases by cohort, age at cohort entry (5 year), sex, race, and calendar year of cohort entry.
16S rRNA gene sequencing assay
extraction of genomic DNA from oral samples using the Mobio DNA Isolation Kit. 16S rRNA amplicons covering variable regions V3 to V4 will be generated using primers (347F-5'GGAGGCAGCAGTRRGGAAT'-3' and 803R 5'-CTACCRGGGTATCTAATCC-3')66 incorporating adapters and a sample barcode sequence at PI's lab. Amplicons will be sequenced with the Roche 454 FLX Titanium sequencing system at the NYU genome technology center, following the manufacturer's specifications.
Interventions
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16S rRNA gene sequencing assay
extraction of genomic DNA from oral samples using the Mobio DNA Isolation Kit. 16S rRNA amplicons covering variable regions V3 to V4 will be generated using primers (347F-5'GGAGGCAGCAGTRRGGAAT'-3' and 803R 5'-CTACCRGGGTATCTAATCC-3')66 incorporating adapters and a sample barcode sequence at PI's lab. Amplicons will be sequenced with the Roche 454 FLX Titanium sequencing system at the NYU genome technology center, following the manufacturer's specifications.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
55 Years
74 Years
ALL
Yes
Sponsors
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NYU Langone Health
OTHER
Responsible Party
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Principal Investigators
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Jiyoung Ahn, MD
Role: PRINCIPAL_INVESTIGATOR
NYU Langone Health
Locations
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New York University School of Medicine
New York, New York, United States
Countries
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Other Identifiers
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12-00721
Identifier Type: -
Identifier Source: org_study_id