A Long-term Safety and Efficacy Study Evaluating CM512 in Atopic Dermatitis.

Inclusion Criteria: * Have the ability to understand the study and voluntarily sign a written informed consent form (ICF). * Subjects who have completed the week 18 evaluation in the parent study CM512-101102 or the End of Study(EOS) visit in the parent study CM512-100001. Exclusion Criteria: * Not enough washing-out period for previous therapy. * Any other condition assessed by the investigator that makes participants unsuitable for participation in this study.