Mobile CT lung cancer screening expands access for underserved populations in Brazil
Mobile low-dose computed tomography (LDCT) screening can reach high-risk and socially vulnerable populations in resource-limited settings, according to initial results from the Third Brazilian Early Lung Cancer Trial (BRELT3) presented at the International Association for the Study of Lung Cancer (IASLC) 2026 World Conference on Lung Cancer (WCLC).
The Third Brazilian Early Lung Cancer Trial (BRELT3) demonstrated the feasibility of mobile low-dose computed tomography (LDCT) lung cancer screening in resource-limited settings and reaching socially vulnerable populations in Brazil. Conducted from 2023 to 2025 across four cities in the Northeast, the prospective, single-arm observational study focused on individuals aged 50 to 80 who were current or former smokers.
With the help of media campaigns and active outreach by trained community health workers, the program recruited 2,018 eligible participants, of whom 19 lung cancers were diagnosed (0.94%). Community health workers played a crucial role in connecting rural and socially vulnerable individuals, recruiting 44.3% of the screened population.
The study found that mobile LDCT screening is feasible and can improve access to screening for high-risk and underserved groups, contributing to reducing lung cancer mortality.
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