Advancing Lung Cancer Screening One Text at a Time

This study tests whether text message reminders can motivate people who are due for their annual lung cancer screening (low-dose CT scan) to actually schedule and complete it. Participants receive personalized text prompts over 3 months. **You may be eligible if...** - You are between 50 and 80 years old - You have a smoking history of at least 20 pack-years (e.g., 1 pack/day for 20 years) - You currently smoke or quit within the past 15 years - You have not completed your annual lung cancer screening yet this year - You speak English or Spanish - You have a cellphone with unlimited texting **You may NOT be eligible if...** - You are already up to date on your annual lung cancer screening Talk to your doctor to see if this trial is right for you.