Determine the Effect of AZD3161,injected Intradermally, on Quantitative Sensory Testing Variables in Normal and Ultraviolet-C (UVC) Exposed Skin in Healthy Volunteers

Exclusion Criteria

• - Presence of skin disorders, tattoos or other skin conditions that may interfere with the QST measurements, as judged by the Investigator
• - Recent exposure to significant amount of UV light, as judged by the Investigator.
• - Use of any prescribed or non-prescribed analgesics (including paracetamol/acetaminophen or drugs affecting blood flow (including nasal anticongestants), prior to the first administration of investigational product that may interfere with the study objectives.
• - History of severe allergy/hypersensitivity, or ongoing allergy/hypersensitivity as judged by the Investigator, or history of hypersensitivity to drugs with a similar chemical structure or class to AZD3161.
• - Plasma donation within 1 month of screening or any blood donation/blood loss >500 mL during the 3 months prior to screening