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A Multi-Centered Trial Evaluating the Role of Vitamin D Metabolism in Non-Small Cell Lung Cancer
EBUS
2 other identifiers
observational
41
1 country
2
Brief Summary
Vitamin D exerts antiproliferative and differentiating effects in cancers, including non-small cell lung cancer (NSCLC). The active form of Vitamin D is 1,25, dihydroxycholecalciferol (calcitriol) which rapidly induces expression of cytochrome P450 24R-hydroxylase (CYP24A1). CYP24A1 initiates inactivation of calcitriol as a result of successive hydroxylation/oxidation reactions. This study seeks to prospectively determine the relationship between Vitamin D gene expression and median survival as a primary outcome, and between the Vitamin D receptor (VDR)/CYP24A1 gene expression and cancer stage, smoking status, serum 1,25 (OH)2D3 levels as well as CYP24A1 genotype.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started May 2011
Typical duration for all trials
2 active sites
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
Study Start
First participant enrolled
May 1, 2011
CompletedFirst Submitted
Initial submission to the registry
July 22, 2011
CompletedFirst Posted
Study publicly available on registry
August 4, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2013
CompletedMarch 31, 2014
March 1, 2014
2.1 years
July 22, 2011
March 28, 2014
Conditions
Outcome Measures
Primary Outcomes (1)
Time to lung cancer related death
Time to lung cancer related death
18 months
Study Arms (1)
Observational Group
NSCLC subject undergoing bronchoscopy
Eligibility Criteria
Patients with early-stage non-small cell lung cancer undergoing a broncoscopy at the University of Michigan Health Center or at the Ann Arbor Veteran's Administration Hospital
You may qualify if:
- Scheduled for diagnostic bronchoscopy for suspected advanced stage lung cancer by CT/PET scanning.
- Tumor or lymph node accessible by transbronchial needle aspiration.
- Age 18-80.
- All patients must be informed of the investigational nature of this study and must give written informed consent in accordance with institutional and federal guidelines.
You may not qualify if:
- Unstable cardiovascular disease or other systemic disease
- Mental incompetence/active psychiatric illness
- Medical contraindication for bronchoscopy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
United States Department of Veteran's Affairs Medical Center
Ann Arbor, Michigan, 48105, United States
University of Michigan Cancer Center
Ann Arbor, Michigan, 48109, United States
Biospecimen
Bronchial brush samples Bronchoscopy samples for RNA extraction and RT-PCR expression Blood samples * 7 mL for measurement of Serum total Vit-D levels and 1,25 (OH)2 D3 levels; * 5 ml collected in EDTA tube for CYP24A1 genotype analysis (common metabolizing agent for calcitriol) and CYP24 polymorphisms analysis
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Nithya Ramnath, MD
University of Michigan Medical Center and Veteran's Administration Health Center
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 22, 2011
First Posted
August 4, 2011
Study Start
May 1, 2011
Primary Completion
June 1, 2013
Study Completion
December 1, 2013
Last Updated
March 31, 2014
Record last verified: 2014-03