Feasibility Study for Prospective Diet and Lifestyle Cohorts in Delhi, Kerala, and Kolkota, India

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00341536
Recruitment Status : Completed
First Posted : June 21, 2006
Last Update Posted : April 5, 2018
Information provided by:
National Institutes of Health Clinical Center (CC)

Brief Summary:

This pilot study will examine the potential for health, diet and lifestyle research in Delhi, Kerala, and Kolkota, India. It will: 1) evaluate the adequacy of the existing infrastructure for a large-scale epidemiologic investigation and follow-up; 2) obtain a characterization of the Indian diet; 3) determine study end-points; 4) evaluate the feasibility of collecting and analyzing biologic samples within India; and 5) evaluate the ability of centers to recruit subjects and collect data.

Indian men and women between 35 and 70 years of age who have resided in the study area (Delhi, Kerala, or Kolkota) for at least 1 year may be eligible for this study. Participants will undergo the following tests and procedures:

Part A: Diet and Lifestyle (2 visits)

  • Questionnaires on medical history and treatment practices, including questions on reproductive history
  • Brief medical examination
  • Body measurements, including height, weight, forearm circumference, thighs, hips, stomach, skin thickness of the back and triceps (back of the arms)
  • Blood draw for research, including studies of gene changes that affect the way the body uses nutrients
  • Collection of toenail clippings for research tests
  • Interview about: 1) dietary habits and understanding of the relationship of diet to health; 2) lifestyle, work, and family health; and 3) moving history (how often subject has moved in the past 5 years, addresses of past homes, and plans for future moves)

Part B: Understanding Diet (6 visits)

  • Interview at each visit about food and drink consumed the day before the interview
  • 2 blood draws
  • 24-hour urine collection
  • Physical activity monitor. The subject wears a small device placed on the belt or waist of the pants for a specified time to measure the amount of movement performed.

Part C: Medical Follow-up Patterns (1 visit)

-Answer questions about medical history, treatment practices, and dietary habits

Condition or disease
Chronic Diseases

Detailed Description:


Cancer research in developing countries has not received adequate attention in spite of having great potential to improve our understanding of genes and environmental exposures such as diet in the etiology of cancer. Specifically, an Indian dietary cohort would substantially expand the intake range and variety of different foods and lifestyles that have not been adequately explored, e.g., spices, type of oils, lentils, vegetarianism (tied to religion rather than healthy life-style ), and types of physical activities. Indians also have distinct cancer incidence patterns. Establishing a cohort will allow us to study multiple cancer outcomes as well as other disease end-points (e.g., cardiovascular disease and diabetes), and it will avoid potential bias resulting from differential recall of past diet by subjects, a critical concern in case-control studies that assess nutritional intake. As measurement of various biological markers will be an integral component of this study, it will be important to collect biological specimens prior to illness and treatment. This is particularly important in India as cases may present with late stage disease.

Because a study of this magnitude and complexity has not been carried out in India, I have proposed a pilot study to determine the feasibility of conducting a large cohort study in India. The pilot study consists of three parts: 1) evaluation of logistical issues; 2) characterization of the diet; and 3) evaluation of issues related to follow-up and end-point ascertainment. In Part A of this pilot study there will be 4,000 subjects. This part of the study will be evaluated for logistical issues, including questionnaire administration, collection, storage, and analysis. Response rates for questionnaires, collection of biospecimens and the centers ability to carry out the proposed research will be evaluated as well. Part B of the pilot study consists of a characterization of Indian diet to determine within- and between-person variability in intake in a subset of 1,400 subjects; an evaluation to determine whether Indians can estimate food quantities accurately; assess the degree of measurement error in selected nutrients; and ascertain whether using multiple forms of intake instruments in combination with biomarkers may categorize intake with less error. In Part C of the pilot study, issues related to follow-up and end-point ascertainment in 1200 subjects will be evaluated. In addition, an evaluation of the likelihood of cancers and other chronic diseases remaining completely undiagnosed owning to lack of access to health care; assess movement pattern and traceability of Indian populations; as well as an evaluation of the cancer registry coverage and determine whether supplementary activities are required.

Study Type : Observational
Actual Enrollment : 4044 participants
Official Title: A Feasibility Study for Prospective Cohort in India
Study Start Date : June 17, 2004
Study Completion Date : November 20, 2013

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U.S. FDA Resources

Information from the National Library of Medicine

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, Learn About Clinical Studies.

Ages Eligible for Study:   35 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Once a subject is identified, their eligibility for study participation will be determined based on the following:

Age between 35-70 years.

Use or would consider using certain medical centers/hospitals in the catchment area.

Resided in study area a minimum period of one year.

Must speak Hindi, Punjabi or English.

Female subjects cannot be pregnant.


Children will be excluded from the study.

We will exclude persons with any physical ailments preventing them from study participation, and with recent chronic or other serious diseases or conditions that have made them alter their diet. This is likely to include cancer as well as cardiovascular disease or diabetes and also some infectious conditions.

Participants will be terminated from the study if they move outside of the study area.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00341536

Initiative for Cardiovascular Health Research in the Developing Countries
New Delhi, India
Sponsors and Collaborators
National Cancer Institute (NCI)
Principal Investigator: Rashmi Sinha, Ph.D. National Cancer Institute (NCI)

Publications: Identifier: NCT00341536     History of Changes
Other Study ID Numbers: 999904219
First Posted: June 21, 2006    Key Record Dates
Last Update Posted: April 5, 2018
Last Verified: November 20, 2013

Keywords provided by National Institutes of Health Clinical Center (CC):
Chronic Disease

Additional relevant MeSH terms:
Chronic Disease
Disease Attributes
Pathologic Processes