At a glance
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Randomized Phase II Trial of Concurrent Chemoradiotherapy +/- Metformin HCL in Locally Advanced NSCLC
In Brief
A Phase 2 clinical trial evaluating Radiation Therapy, Carboplatin, and 2 other interventions for Adenosquamous Lung Carcinoma and 8 related conditions. Completed, enrolled 170 participants across 224 sites in 3 countries.
Detailed Summary
This randomized phase II trial studies how well chemotherapy and radiation therapy given with or without metformin hydrochloride works in treating patients with stage III non-small cell lung cancer. Drugs used in chemotherapy, such as carboplatin and paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Radiation therapy uses high-energy x-rays to kill tumor cells and shrink tumors. Metformin hydrochloride may shrink tumors and keep them from coming back. It is not yet known whether chemotherapy and radiation therapy is more effective when given with or without metformin hydrochloride in treating stage III non-small cell lung cancer.
Study Details
Timeline
Interventions
Radiation therapy (RT) is given in 2 Gy fractions once daily 5 days per week to a total of 30 fractions and 60 Gy. Photons required; 3-dimensional conformal radiation therapy (3D-CRT) or intensity-modulated radiation therapy (IMRT) permitted. Starts within 14 days of randomization (Chemoradiation arm) or 14 days after metformin starts (Chemoradiation + Metformin arm).
2 AUC (area under the curve) via IV weekly on days 1, 8, 15, 22, 29, and 36 from start of radiation therapy. Two 21 day cycles of 6 AUC via IV starting 28-42 days after the end of radiation therapy.
Metformin is taken orally. Dose escalation begins 2 weeks prior to the initiation of chemoradiation. 500 mg twice daily days 1-7 of metformin. 500 mg three times daily days 8-14 of metformin. Three times a day with the following dosage: 500mg in the morning, 1000mg at noon, and 500mg in the evening concurrent with chemoradiation and through consolidation chemotherapy (days 15-126 of metformin),
50 mg/m2 via IV weekly on days 1, 8, 15, 22, 29, and 36 from start of radiation therapy. Two 21 day cycles of 200 mg/m2 via IV 28-42 days after the end of radiation therapy.