Intensified Follow-up of Lung Cancer Using Weekly Questionnaires Via the Internet

Inclusion Criteria:

1. Patients with lung cancer (NSCLC and SCLC), who have received 1st line induction treatment\* for lung cancer and have no sign of progressive disease at first evaluation CT scan.
2. Patients diagnosed with stage III treated with palliative intention, and stage IV, regardless of treatment intention.
3. Diagnosis proven by cytology or histology
4. Age ≥ 18 years
5. Performance status (PS) ≤ 2 within 15 days before enrolment
6. First evaluation CT scan performed within four weeks from enrolment
7. Patient with acess to internet, Mobile phone and E-boks (Danish digital secure mail system)
8. Patient has given his/her written informed consent before any specific procedure from protocol

   * Induction treatment includes:

     * Standard doublet chemotherapy
     * Immunotherapy
     * Targeted therapy
     * Palliative radiotherapy
     * Local treatment of oligometastatic disease, including surgery and stereotactic radiotherapy
     * Any combination of the above-mentioned treatment modalities Patients are eligible regardless of whether they at the time of inclusion continue maintenance treatment or not

Exclusion Criteria:

1. Progressive disease at first evaluation scan
2. Persons deprived of liberty or under guardianship or curators
3. Dementia, mental alteration or psychiatric disease that can compromise informed consent from the patient and / or adherence to the protocol and the monitoring of the trial
4. Pregnant or breastfeeding women
5. Patient participating in another interventional study during the surveillance period. This is only relevant for studies that might interfere with the intervention. Participation in protocols related only to treatment will not preclude participation in the present study. Cases of doubt will be settled by the protocol committee.