Phthalocyanine dye IRDye 700DX (IR700), which is light-activated at a wavelength of 690 nm, was conjugated with Cetuximab, thus obtaining the experimental drug ASP-1929, which became a key component for PIT in selectively targeting the membrane of tumor cells that overexpress EGFR, and killing these cells. The gene discussed is EGFR; the disease is neoplasm.