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Analysis of Tissues From Patients in Trial of Myo-Inositol to Prevent Lung Cancer

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: NCT00342836
Recruitment Status : Completed
First Posted : June 21, 2006
Last Update Posted : March 23, 2007
Information provided by:
National Institutes of Health Clinical Center (CC)

Brief Summary:

This study will examine tissue specimens from patients participating in a trial of high-dose myo-inositol to prevent lung cancer. The trial, conducted at the British Columbia Cancer Agency-Vancouver Cancer Center (BCCA-VCC), includes people who have pre-cancerous changes in the air passages of their lungs.

The BCCA-VCC trial was designed to determine side effects of taking large amounts of the food supplement myo-inositol for longer than a month and if the supplement can help smokers stop smoking.

The current study will look at the levels of a substance called Akt in tissue samples obtained from air passages of subjects in the BCCA-VCC trial. Akt is activated by tobacco components and can be found in lung tumor specimens and pre-cancerous lesions. Myo-inositol may affect Akt levels and help prevent progression of pre-cancerous lesions to cancer.

People participating in the BCCA-VCC phase 1 myo-inositol trial are eligible for this study. Tissue samples obtained from air passages of these patients during their participation in that study will be sent to the National Cancer Institute for analysis of Akt levels.

Condition or disease Intervention/treatment Phase
AKT Procedure: Akt levels Phase 1

Detailed Description:
Human transbronchial biopsy specimens collected under protocol study numbers CDR0000302633; BCCA-U98-0411; BCCA-C02-0298 will be immunohistochemically stained for activated Akt using phospho-specific antibodies. These samples are part of a phase I chemoprevention trial of myo-inositol being conducted in Vancouver, BC by the British Columbia Cancer Agency in collaboration with the National Cancer Institute (NCI). The transbronchial specimens will be sent to the NCI for analysis of activated AKT. The study aims to determine whether myo-inositol, a putative inhibitor of the upstream kinase phosphatidylinositol 3-kinase, can alter activated Akt levels in smokers with bronchial dysplasia.

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Study Type : Interventional  (Clinical Trial)
Enrollment : 20 participants
Primary Purpose: Treatment
Official Title: Immunohistochemical Analysis of Human Transbronchial Biopsy Specimens Collected in a Phase I Chemoprevention Trial of Myo-Inositol in Heavy Smokers Conducted Outside the Intramural NCI Program
Study Start Date : April 2005

Resource links provided by the National Library of Medicine

Drug Information available for: Inositol

Information from the National Library of Medicine

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Ages Eligible for Study:   40 Years to 74 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Any patients entered into phase 1 myo-inositol trial are eligible for inclusion, provided that they have consented to tissue analysis in the original consent form.


None anticipated at this time.

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): NCT00342836

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British Columbia Cancer Agency (BCCA)
Vancouver, Canada
Sponsors and Collaborators
National Cancer Institute (NCI)

Layout table for additonal information Identifier: NCT00342836     History of Changes
Obsolete Identifiers: NCT00899730
Other Study ID Numbers: 999905146
First Posted: June 21, 2006    Key Record Dates
Last Update Posted: March 23, 2007
Last Verified: February 2006
Keywords provided by National Institutes of Health Clinical Center (CC):
Bronchial Specimens
Additional relevant MeSH terms:
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Vitamin B Complex
Growth Substances
Physiological Effects of Drugs