Northwestern University
This phase II trial determines the effect of metformin extended release on the risk for developing lung cancer in overweight/obese patients that are at high-risk for developing lung cancer. Metformin is widely used to treat type II diabetes and has a long history of safety and minimal side effects. At similar dosage, the drug may have potential anti-cancer activity. Metformin use has been associated with improved survival in patients with non-small cell lung carcinoma, a specific type of lung cancer, and it has also been shown to enhance immune mobilization against tumors. This trial aims to see whether metformin extended release as a preventative treatment may lower the chance of developing lung cancer, and whether it may help patients' immune system learn ("reprogram") to lower a certain type of immune cell (called regulatory T cells) that are linked to tumor development.
Lung Carcinoma
Biopsy
Biospecimen Collection
Bronchoscopy
Extended Release Metformin Hydrochloride
Questionnaire Administration
PHASE2
PRIMARY OBJECTIVE: I. To evaluate the effect of metformin treatment on the expression of programmed cell death protein 1 (PD-1) on airway regulatory T cells (Tregs) in overweight and obese individuals at high risk for lung cancer. SECONDARY OBJECTIVES: I. Estimated PD-1 expression of pulmonary Tregs change in Cohort B during the wait period (26 weeks with no treatment). II. To examine the impact of metformin on circulating immune cell subsets of blood. III. To evaluate the effect of metformin treatment on the expression of PD-1 on airway regulatory T cells (Tregs) in overweight and obese current smokers at high risk for lung cancer EXPLORATORY OBJECTIVES: I. To examine the impact of metformin on cancer-related transcriptome features of airway lesions. II. To examine the impact of metformin on immune profile of pulmonary parenchyma represented by bronchoalveolar lavage (BAL). III To examine the impact of metformin on histologic progression of abnormal airway lesions. IV. To examine the impact of metformin on serum adipokines and inflammatory cytokines. OUTLINE: Participants are randomized to 1 of 2 cohorts. COHORT A: Former Smokers - Participants receive metformin extended release (ER) orally (PO) once daily (QD) for 26 weeks in the absence of unacceptable toxicity. Participants undergo bronchoscopy biopsy and blood sample collection at screening, and week 13. COHORT B: Former Smokers - Participants receive no intervention for 26 weeks, then cross-over to cohort A. Participants undergo bronchoscopy biopsy and blood sample collection at screening, at week 26, and at 13 weeks after cross-over to Cohort A. COHORT C: Current Smokers - Participants receive metformin extended release (ER) orally (PO) once daily (QD) for 26 weeks in the absence of unacceptable toxicity. Participants undergo bronchoscopy biopsy and blood sample collection at screening, and week 13. After completion of study treatment, participants are followed up at weeks 30-32 (Cohorts A and C) and weeks 56-58 (Cohort B).
Study Type : | INTERVENTIONAL |
Estimated Enrollment : | 75 participants |
Masking : | NONE |
Primary Purpose : | PREVENTION |
Official Title : | Metformin for Chemoprevention of Lung Cancer in High-Risk Overweight or Obese Individuals |
Actual Study Start Date : | 2022-09-09 |
Estimated Primary Completion Date : | 2026-12-31 |
Estimated Study Completion Date : | 2027-06-30 |
Information not available for Arms and Intervention/treatment
Ages Eligible for Study: | 30 Years |
Sexes Eligible for Study: | ALL |
Accepts Healthy Volunteers: | 1 |
Want to participate in this study, select a site at your convenience, send yourself email to get contact details and prescreening steps.
RECRUITING
Rocky Mountain Regional VA Medical Center
Aurora, Colorado, United States, 80045
RECRUITING
Roswell Park Cancer Institute
Buffalo, New York, United States, 14263
RECRUITING
BC Cancer Research Centre
Vancouver, British Columbia, Canada, V5Z 1L3
NOT YET RECRUITING
University of British Columbia Hospital
Vancouver, British Columbia, Canada, V6t 2B5