Introduction Coronavirus disease 2019 (COVID-19) has disrupted the global health care system since March 2020. Lung cancer (LC) patients (pts) represent a vulnerable population highly affected by the pandemic. This multicenter Italian study aimed to evaluate whether the COVID-19 outbreak impacted on access to cancer diagnosis and treatment for LC pts compared to pre-pandemic time. Methods Consecutive newly diagnosed LC pts referred to 25 Italian Oncology Departments between March and December 2020 were included. Access rate and temporal intervals between date of symptoms onset and diagnostic and therapeutic services were compared to the same period in 2019. Differences between the two years were analyzed using chi-square test for categorical variables and Mann-Whitney U test for continuous variables. Results A slight reduction (-6.9%) in newly diagnosed LC cases was observed in 2020 compared with 2019 (1523 vs 1637, p=0.09). Newly LC pts in 2020 were more likely to be diagnosed with stage IV disease (p<0.01) and to be current smokers (p<0.01). The drop in terms of new diagnoses was greater in the lockdown period (percentage drop -12% vs -3.2%) compared to the other months included. More LC pts referred to low/medium volume hospital in 2020 compared to 2019 (p=0.01). No differences emerged in terms of interval between symptoms onset and radiological diagnosis (p=0.94), symptoms onset and cytohistological diagnosis (p=0.92), symptoms onset and treatment start (p=0.40), treatment start and first radiological revaluation (p=0.36). Conclusions Our study pointed out a reduction of new diagnoses with a shift towards higher stage at diagnosis for LC pts in 2020. Despite this, the measures adopted by Italian Oncology Departments ensured the maintenance of the diagnostic-therapeutic pathways of LC pts.

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