- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05445791
Metformin Plus Tyrosine Kinase Inhibitors for Treatment of Patients With Non-small Cell Lung Cancer With EGFR Mutations (METLUNG)
Effect of Metformin Plus Tyrosine Kinase Inhibitors Compared With Tyrosine Kinase Inhibitors Alone for Patients With Advanced Non-small Cell Lung Cancer and EGFR Mutations: Phase 3 Randomized Clinical Trial
Lung cancer represents the most frequent neoplastic disease worldwide, with an annual incidence of over 2 million cases, which represents 11.6% of all cancer diagnoses. Further, it constitutes the main cause of cancer-related deaths. Among the lung cancer types, non-small cell lung cancer represents 80-85% of cases, and the majority of patients are diagnosed with locally advanced or metastatic disease, and 5-year survival rates remain discouraging in most world regions, ranging from 8-18%.
Advances in molecular biology have led to the discovery of several molecular targets and development of targeted therapy for patients with specific molecular subtypes of NSCLC. One of the most widely studied is the epidermic growth factor receptor (EGFR), which has been long recognized as a key modulator for specific tumor cell functions, and thus it has been used in drug development strategies.
Mutations in the EGFR gene are reported in 15% of all NSCLC cases, though incidence varies widely and in Mexico up to 34% of patients present with tumors with EGFR mutations. Treatment of patients with tumors with these characteristics is based on specific tyrosine kinase inhibitors (TKIs), achieving higher objective response rates and improved progression-free survival (PFS) compared with chemotherapy-based schemes. Nonetheless, despite the initial response, most patients treated with TKIs will eventually develop resistance mechanisms and present progressive disease. Consequently, the development of novel strategies to overcome TKI resistance and improve PFS of patients with NSCLC with epidermic growth factor receptor mutations (EGFRm) is priority.
Up to 30% of patients with NSCLC present with somatic mutations in the liver kinase B1 (LKB1) gene, which acts as a tumor suppressor through inhibition of mammilian target of rapamycin (mTOR). In a study which included 24 patients with LKB1 expression who received treatment with metformin + TKIs, overall survival was improved significantly, and therefore it is important to evaluate LKB1 expression in addition to mutations which could be related with treatment response in patients given metformin plus antineoplastic agents. LKB1 can activate AMP-activated protein kinase (AMPK) signaling through specific phosphorylations at aminoacid residues. AMPK can regulate cell cycle, cell proliferation and cell survival in NSCLC. Recently, the loss of expression of LKB1 has been associated with a reduced activation in AMPK using in vivo models, and increase in tumor necrosis after treatment with bevacizumab. The expression of AMPK has also been evaluated in NSCLC, a study which included 99 samples concluded that increased AMPK expression was associated with worse overall survival. Nonetheless, the association between AMPK expression and metformin treatment has not been ascertained.
Metformin is a biguanide used as treatment for type 2 diabetes. Additionally, several studies have identified a reduced incidence and mortality from diverse neoplasms in patients treated with metformin. In vitro studies have shown that metformin is cytotoxic in lung adenocarcinoma cells, producing a cell cycle arrest at G0 and G1, and it inhibits resistance to TKIs induced by Epithelial-Mesenchymal transition (EMT). Retrospective trials have also provided evidence as to the benefit of metformin in patients undergoing treatment for NSCLC. Several prospective trials have evaluated the concurrent use of metformin plus TKIs for patients with lung adenocarcinoma, though results have been controversial.
This randomized, phase 3 study will evaluate the PFS in patients with NSCLC with EGFR mutations undergoing treatment with TKIs plus placebo vs. TKIs plus metformin.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Estimated)
Phase
- Phase 3
Contacts and Locations
Study Locations
-
-
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Mexico City, Mexico, 14080
- Recruiting
- Instituto Nacional de Cancerologia
-
Contact:
- Oscar Arrieta, MD MSc
- Phone Number: 71100 015556280400
- Email: ogarrieta@gmail.com
-
Contact:
- Diana Flores
- Phone Number: 71101 015556280400
- Email: clinicacancerpulmonincan@gmail.com
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Patients with a histologically confirmed diagnosis of non-small cell lung cancer (stage IIIB-IV) according to the American Joint Committee on Cancer (AJCC) eight edition.
- Measurable disease by RECIST 1.1.
- 18 years of age or older.
- Functional status 0-2 as assessed by Eastern Cooperative Oncology Group (ECOG) scale.
- Life expectancy of minimum12 weeks.
- Patients with non-small cell lung cancer and a documented EGFR sensitizing mutation.
- Patients without previous EGFR-TKI treatment. Previous use of chemotherapy is allowed with a washout period of at least 6 months.
- Patients with asymptomatic brain metastases, or if symptoms are present treatment with radiotherapy (whole brain radiotherapy, stereotactic radiosurgery) or surgery must be administered.
- Neutrophil count ≥1.5 x 103/mm3, and platelet count >100 x (103/mm3).
- Serum bilirubin ≤1.5 the superior upper limit.
- Aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) ≤ 2 superior upper limit (or ≤ 5 times the superior upper limit in patients with liver metastases).
- Serum creatinine ≤ 1.5 superior upper limit, or creatinine clearance ≥ 60ml/min.
- Full ability to complete all study procedures and follow up.
- Women with child-bearing potential must have a negative pregnancy test within 72 hours of treatment start.
- Patients with reproductive potential must use effective contraception.
- Signed informed consent for participation in the study.
- Availability of tumor tissue (pre-treatment biopsy) to determine LKB1 and AMPK status.
Exclusion Criteria:
- Any unstable systemic disease (including active infection, grade 4 hypertension, unstable angina, congestive heart disease, hepatic diseases, renal diseases).
- Patients previously treated with an EGFR-TKI.
- Patients diagnosed with any other neoplastic disease in the previous 5 years (except in situ cervical carcinoma or basocellular skin cancer, treated accordingly).
- Patients unable to receive oral medication, who require IV nourishment, or who underwent surgical procedures with affect nutrient absorption, or with an active peptic ulcer.
- Pregnant or lactating women.
- Patients diagnosed with type 2 diabetes or a glycated hemoglobin ≥ 6.5%.
- Patients being currently treated with metformin.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo
Patients randomized to this study arm will be treated with tyrosine kinase inhibitors (Gefitinib 250 mg/day; afatinib 30-40 mg/day; erlotinib 150 mg/day) plus placebo 500 mg twice daily until disease progression.
|
Placebo 500 mg twice daily until disease progression
|
Experimental: Metformin
Patients randomized to this study arm will be treated with tyrosine kinase inhibitors (Gefitinib 250 mg/day; afatinib 30-40 mg/day; erlotinib 150 mg/day) plus metformin 500 mg twice daily until disease progression.
|
Metformin 500 mg twice daily until disease progression.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Progression-free survival
Time Frame: 48 months
|
Time from treatment start until documented disease progression (according to RECIST criteria) or death by any cause.
|
48 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Overall survival
Time Frame: 48 months
|
Time from treatment start until death by any cause.
|
48 months
|
Overall Response Rate
Time Frame: 3 months
|
The sum of complete and partial response as assessed by RECIST criteria version 1.1
|
3 months
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- (020/023/ICI) (CEI/1421/19)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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