The Role of TRP Channels in CIPN

Part I: Evaluating the increase in dermal blood flow upon topical application of cinnamaldehyde and capsaicin on the fingers in healthy, male volunteers. In addition, the inter-period and inter-hand reproducibility of the increase in dermal blood flow will be assessed. Part II: Evaluating the increase in dermal blood flow upon topical application of cinnamaldehyde and capsaicin on the fingers in patients suffering from chemotherapy-induced peripheral neuropathy compared to matched healthy volunteers. Part III: Evaluating the increase in dermal blood flow upon topical application of cinnamaldehyde and capsaicin on the fingers in patients who are treated with paclitaxel or oxaliplatin.