Calcitriol in Preventing Lung Cancer in Smokers and Former Smokers at High Risk of Lung Cancer

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Basic Trial Information

PhaseTypeStatusAgeSponsorProtocol IDs
Phase IBiomarker/Laboratory analysis, PreventionActive40 to 79NCI, OtherCDR0000596506
P30CA016056, RPCI-I-90206, I 90205, NCT00690924

Trial Description


RATIONALE: Calcitriol may prevent lung cancer in patients with metaplasia or dysplasia of the lungs.

PURPOSE: This clinical trial is studying the side effects and best dose of calcitriol in preventing lung cancer in current smokers and former smokers at high risk of lung cancer.

Further Study Information



  • To establish the safety of calcitriol in patients at high risk of lung cancer.
  • To determine the dose-limiting toxicities of calcitriol in these patients.

OUTLINE: Patients receive oral calcitriol on day 1. Courses repeat every 2 weeks for 3 months in absence of unacceptable toxicity.

Patients undergo blood collection periodically for pharmacokinetic and molecular analysis.

After completion of study therapy, patients are followed periodically.

Eligibility Criteria


  • Pathologically confirmed squamous metaplasia or squamous dysplasia of the lungs by autofluorescence bronchoscopy within the past 5 years
  • Must be a current or former smoker
  • No evidence of concurrent disease with lung cancer or head and neck cancer
  • History of treated lung cancer or head and neck cancer treated with curative intent allowed, provided that there has been no evidence of disease for > 1 year


  • ECOG performance status 0-1
  • Total granulocyte count > 1,500 x 10^9cells/L
  • Platelet count > 100,000 x 10^9cells/L
  • Calculated Creatinine clearance > 60 mL/min (using the Cockcroft-Gault formula)
  • Calcium concentration 50-300 mg/24 hours
  • Total bilirubin 0.2-1.3 mg%
  • ALT/AST ≤ 2.5 times upper limit of normal (ULN)
  • Alkaline phosphatase ≤ 2.5 times ULN
  • Albumin ≥ 2.5 g/dL
  • Ionized serum calcium normal (1.19-1.29 mmol/L)
  • Corrected serum calcium ≤ 10.2 mg/dL
  • Willing to attend all scheduled study visits, complete all study questionnaires, and allow biological specimen collection, including a bronchoscopy
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception during and for at least 1 month after completion of study therapy
  • No life-threatening medical conditions that would preclude bronchoscopy, including but not limited to, any of the following:
  • Acute cardiac failure
  • Uncontrolled hypertension
  • Uncontrolled diabetes mellitus
  • Unstable coronary artery disease
  • No severe metabolic disorders that would preclude calcitriol administration
  • No history of any other malignancy within 3 years except for nonmelanoma skin cancer or cervical carcinoma in situ
  • No history or evidence of kidney stones
  • No patients who are susceptible to calcium-related dysrhythmias
  • No known hypersensitivity to calcitriol
  • No known allergies to tree nuts (i.e., almonds)


  • At least 2 months since prior and no concurrent calcium supplements
  • Concurrent multivitamin supplement allowed provided the amount of vitamin D in the supplement is not in excess of the recommended daily dose
  • No concurrent thiazides, phenobarbital, or digitalis
  • No concurrent digoxin
  • No concurrent bile acid binding drugs (i.e., cholestyramine, colestipol)
  • No concurrent danazol or aluminum-based antacids
  • No concurrent ketoconazole or other azole antifungals

Trial Contact Information

Trial Lead Organizations/Sponsors

Roswell Park Cancer Institute

  • National Cancer Institute
Alex A. Adjei, Principal Investigator

Trial Sites


New York

Roswell Park Cancer Institute

Ph: 877-275-7724

Link to the current record.
NLM Identifier NCT00690924 processed this data on January 06, 2015

Note: Information about this trial is from the database. The versions designated for health professionals and patients contain the same text. Minor changes may be made to the record to standardize the names of study sponsors, sites, and contacts. only lists sites that are recruiting patients for active trials, whereas lists all sites for all trials. Questions and comments regarding the presented information should be directed to