Early Detection of Esophageal Cancer

This study is ongoing, but not recruiting participants.
Sponsor:
Information provided by:
National Institutes of Health Clinical Center (CC)
ClinicalTrials.gov Identifier:
NCT00341523
First received: June 19, 2006
Last updated: December 11, 2014
Last verified: December 2014
  Purpose

Esophageal cancer is a common malignancy with a very poor prognosis. The principal reason for its poor prognosis is that most tumors are asymptomatic and go undetected until they have spread beyond the esophageal wall and are unresectable. Significant reduction in esophageal cancer mortality will require successful strategies to diagnose and treat more cases at earlier, more curable stages of disease. A successful early detection program will require an accurate, patient-acceptable screening test, confirmatory tests that can localize precursor and early invasive lesions, and one or more curative therapies that are acceptable to asymptomatic patients. This project includes five studies designed to evaluate techniques that may be useful in such an early detection program:

  1. The Cytology Sampling Study will estimate and compare the sensitivity of several cytologic samplers for identifying biopsy-proven dysplasia and cancer of the esophagus.
  2. The Mucosal Staining Study will evaluate whether mucosal straining can improve endoscopic localization of esophageal dysplasia and cancer.
  3. The Endoscopic Staging Study will evaluate how accurately endoscopic techniques can stage dysplasia and early invasive cancer of the esophagus.
  4. The Endoscopic Therapy Pilot Study will evaluate the feasibility, safety, acceptability and preliminary efficacy of endoscopic therapies for removing or ablating focal high-grade dysplasias and early invasive cancers of the esphagus.
  5. The Chemoregression Study will evaluate the ability of oral chemopreventive agents to reduce progression or cause regression of low-grade squamous dysplasia of the esophagus.

This project will be carried out in Linxian, China, a county with extraordinary rates of esophageal cancer and a correspondingly high prevalence of the asymptomatic precursor and early invasive lesions that are needed for these studies. The project will be a collaborative effort of investigators from NCI, the Cancer Institute of the Chinese Academy of Medical Sciences, and several U.S. universities.


Condition
Esophageal Neoplasms
Stomach Neoplasms
Endoscopy, Gastrointestinal
Digestive System Endoscopic Surgical Procedures
Cytology

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: Early Detection of Esophageal Cancer

Resource links provided by NLM:


Further study details as provided by National Institutes of Health Clinical Center (CC):

Primary Outcome Measures:
  • Esophageal squamous dysplasia [ Time Frame: Single time point, when samples are collected ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Esophageal squamous cell carcinoma (ESCC) [ Time Frame: Clinical diagnosis of ESCC ] [ Designated as safety issue: No ]
  • Death from any cause [ Time Frame: Death ] [ Designated as safety issue: No ]

Estimated Enrollment: 8000
Study Start Date: May 1994
Detailed Description:

Esophageal cancer is a common malignancy with a very poor prognosis. The principal reason for its poor prognosis is that most tumors are asymptomatic and go undetected until they have spread beyond the esophageal wall and are unresectable. Significant reduction in esophageal cancer mortality will require successful strategies to diagnose and treat more cases at earlier, more curable stages of disease. A successful early detection program will require an accurate, patient-acceptable screening test, confirmatory tests that can localize precursor and early invasive lesions, and one or more curative therapies that are acceptable to asymptomatic patients. This project includes six studies designed to evaluate techniques that may be useful in such an early detection program:

  1. The Cytology Sampling Study will estimate and compare the sensitivity of several cytologic samplers for identifying biopsy-proven dysplasia and cancer of the esophagus.
  2. The Mucosal Staining Study will evaluate whether mucosal staining can improve endoscopic localization of esophageal dysplasia and cancer.
  3. The Endoscopic Staging Study will evaluate how accurately endoscopic techniques can stage dysplasia and early invasive cancer of the esophagus.
  4. The Endoscopic Therapy Pilot Study will evaluate the feasibility, safety, acceptability and preliminary efficacy of endoscopic therapies for removing or ablating focal high-grade dysplasias and early invasive cancers of the esophagus.
  5. The Chemoregression Study will evaluate the ability of oral chemopreventive agents to reduce progression or cause regression of low-grade squamous dysplasia of the esophagus.
  6. The Human Papillomavirus Tissue Study will evaluate the hypothesis that HPV is involved in the pathogenesis of esophageal squamous cell carcinoma and/or gastric cardia adenocarcinoma.

This project will be carried out in Linxian, China, a county with extraordinary rates of esophageal cancer and a correspondingly high prevalence of the asymptomatic precursor and early invasive lesions that are needed for these studies. The project will be a collaborative effort of investigators from NCI, and the Cancer Institute of the Chinese Academy of Medical Sciences.

  Eligibility

Ages Eligible for Study:   21 Years to 80 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria
  • INCLUSION CRITERIA:

Resident of Linxian, Henan Province, People's Republic of China.

40-69 years of age at the time of EGD screening.

Visible esophageal lesions with mild or moderate squamous dysplasia found at the t(-6) EGD screening exam.

Confirmation of a visible index lesion at the t(0)EGD baseline exam.

Willing to abstain from chronic NSAID use (defined as greater than 3 times per week for more than 2 weeks), with the exception of low-dose aspirin (less than or equal to 100 mg per day), for the duration of the study.

If a subject is female and of child-bearing potential (premenopausal or less than 2 years postmenopausal and not surgically sterile), she must be willing to use adequate contraception (abstinence, IUD, birth control pills, or spermicidal gel with diaphragm or condom) for the duration of the study.

Appropriate laboratory values within 2 weeks of the baseline evaluation for:

hemoglobin greater than 11.0 g/dl;

WBC greater than 3000/mm(3);

platelet count greater than 100,000;

creatinine less than or equal to 1.5 times the upper limit of normal;

AST less than or equal to 1.5 times the upper limit of normal;

Alkaline phosphatase less than or equal to 1.5 the upper limit of normal;

Pregnancy test negative serum or urine (women of childbearing potential only).

Only those patients with mild or moderate dysplasia based on the t(-6) histology and endoscopically visible lesions at the t(0) evaluation will be eligible for participation and inclusion in the study.

To be eligible at t(0), subjects must have a confirmed, endoscopically visible lesion.

EXCLUSION CRITERIA:

Diagnosed cancer at any site, except non-melanoma skin cancer.

Current symptoms suggestive of an upper gastrointestinal tract malignancy, including dysphagia, odynophagia, hematemesis, or weight loss of greater than 10% body weight within the past 6 months.

Contraindications to the EGD exams, including hypersensitivity to lidocaine or iodine, uncontrolled congestive heart failure, unstable angina, bleeding disorder or severe pulmonary disease.

Contraindications to use of the intervention agents, including hypersensitivity to selenomethionine, COX-2 inhibitors, NSAIDs, salicylates, or sulfonamides.

Treated for peptic ulcer disease within the past month prior to the baseline evaluation.

Acute or chronic kidney disease, liver disease, or asthma.

Pregnant or nursing an infant.

Other serious health condition that might preclude study completion (at the discretion of the investigators).

Currently using fluconazole or lithium.

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00341523

Locations
China
Cancer Institute, Chinese Academy of Medical Sciences
Beijing, China
Sponsors and Collaborators
Investigators
Principal Investigator: Sanford M Dawsey, M.D. National Cancer Institute (NCI)
  More Information

Publications:
ClinicalTrials.gov Identifier: NCT00341523     History of Changes
Obsolete Identifiers: NCT00005885
Other Study ID Numbers: 999995026, OH95-C-N026
Study First Received: June 19, 2006
Last Updated: December 11, 2014
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
Cytology
Endoscopy
Esophageal Cancer
Early Detection
Treatment

Additional relevant MeSH terms:
Esophageal Neoplasms
Neoplasms
Stomach Neoplasms
Digestive System Diseases
Digestive System Neoplasms
Esophageal Diseases
Gastrointestinal Diseases
Gastrointestinal Neoplasms
Head and Neck Neoplasms
Neoplasms by Site
Stomach Diseases

ClinicalTrials.gov processed this record on April 23, 2015