Clarity Science LLC has published a study of the Kailo patch in Anesthesia & Pain Research ISSN 2639-846X.

Using Nanotechnology to Improve Pain and Function with a Novel, Drug-Free, passive Pain-Relief Patch: An Interim Analysis,” represents preliminary outcomes from PREVENT (Pain Relief: Experience and Validity: Evaluating NanoTechnology), an IRB-approved, minimal risk, observational study. 

Study can be found here