I mean, which physiological or immunological parameters/markers that I need to study to know the effect of using immunotherapy in the patients with lung cancer?
Tabarak Jalil up to my knowledge CT imaging post op or treatment is best approach to assess tumor regression. As for circulating biomarkers, I think it would be patient specific (pre treatment cancer biomarkers) and depending on targets of immunotherapy. Consult reviews of circulating biomarkers for lung cancer such as (doi: 10.1016/j.ctarc.2021.100410), and studies monitoring type of immunotherapy you are considering (Mabs, autologous immune cell transfer, vaccine, chimeric receptors..etc). Good luck