Validating the Efficacy of a Mobile Digital Therapeutic for Insomnia (WELT-I): Randomized Controlled Decentralized Clinical Trial

Kyung Mee Park   ^{1, 2} , MD, PhD ;   Suonaa Lee   ² , MD ;   Yujin Lee   ^{3, 4} , MD, PhD ;   Daa Un Moon   ^{5, 6} , MD ;   Eun Lee   ^{2, 7} , MD, PhD

¹ Department of Hospital Medicine, Yongin Severance Hospital, Yongin, Republic of Korea

² Department of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

³ Department of Pharmacy, College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Republic of Korea

⁴ WELT Corp, Seoul, Republic of Korea

⁵ Department of Psychiatry and Neurosciences, Charité Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany

⁶ Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland

⁷ Institute for Innovation in Digital Healthcare, Yonsei University, Seoul, Republic of Korea