The Study of CM310 in Patients With Atopic Dermatitis

An Open, Multicenter,Open-label Extension Study to Evaluate the Safety and Efficacy of CM310 in Patients With Atopic Dermatitis

This is an open, multicenter, extension study evaluating the safety and efficacy of CM310 for long-term treatment in patients with atopic dermatitis The primary objective is to assess the long-term safety of CM310 administered in patients with atopic dermatitis (AD).

The secondary objective of the study is to assess the immunogenicity of CM310 in patients with AD, in the context of re-treatment, and to monitor efficacy parameters associated with long-term treatment.

Inclusion Criteria:

1. Participation in a prior clinical trial of CM310 for AD(CM310AD001 and CM310AD002) and met one of the following:

   1. Participation in CM310AD001:received study treatment and adequately completed the assessments and completed the EOS(D85±7) visit.
   2. Participation in CM310AD002 and met one of the following：i: Received study treatment and adequately completed the assessments and completed the EOS(V12) visit. ii:Treatment termination due to other reasons other than poor compliance or AE related to CM310 , completed the EOS visit .

2. Provide signed informed consent

Exclusion Criteria:

1. Patients who, during their participation in a previous CM310 clinical trial, developed a SAE/AE deemed related to dupilumab*, which in the opinion of the investigator or of the medical monitor could not suitable to continue the treatment with CM310.
2. Not enough washing-out period for previous therapy.
3. Pregnancy.
4. Other