Phase II Study of Hemay005 in Patients With Active Ankylosing Spondylitis
Condition: Active Ankylosing Spondylitis
MeSH terms: Spondylitis; Spondylarthritis; Spondylitis, Ankylosing
Study type: Interventional
Phase: Phase 2

Summary: 
      This study is a multicenter, randomized, double-blind, placebo-controlled phase II clinical
      study. The study was divided into three stages, including screening period(4-week), treatment
      period(16-week) and observation period. All subjects need to enter a 28 day (4-week)
      observation period after stopping hemay005 treatment.

      Main purpose:

      The efficacy of hemay005 tablet in the treatment of active ankylosing spondylitis (as) was
      evaluated by placebo parallel control.

      Secondary purpose:

        -  To evaluate the safety of oral hemay005 tablets in patients with active as.

        -  To evaluate the population pharmacokinetics of hemay005 tablets in patients with active
           as.
    

Detailed description: 
      This study is a multicenter, randomized, double-blind, placebo-controlled phase II clinical
      study. The study was divided into three stages, including screening period, treatment period
      and observation period. All subjects need to enter a 28 day (4-week) observation period after
      stopping hemay005 treatment.

      Screening period: all subjects shall have a screening period of no more than 28 days (4
      weeks) before the baseline visit (day 1 of randomization).

      Treatment period: after screening and meeting the inclusion requirements of the study, as
      subjects were randomly divided into hemay005 60 mg twice daily (bid) dose group (group A), 75
      mg bid dose group (group B) and placebo control group (Group C) according to the ratio of
      1:1:1. A total of 90 subjects were included in the three groups. They were titrated in the
      first 6 days. From the 7th day, the subjects received fixed dose administration twice a day
      for 112 consecutive days (16 weeks). Considering the difference in the proportion of men and
      women with as, and the slow onset and mild condition of women, randomization will minimize
      the imbalance between treatment groups according to gender stratification.

      Observation period: Subjects in the study (including those who withdrew from the treatment
      early for any reason) shall be observed for 4 weeks after the end of the last administration.

      Main purpose:

      The efficacy of hemay005 tablet in the treatment of active ankylosing spondylitis (as) was
      evaluated by placebo parallel control.

      Secondary purpose:

        -  To evaluate the safety of oral hemay005 tablets in patients with active as.

        -  To evaluate the population pharmacokinetics of hemay005 tablets in patients with active
           as.
    

Intervention name(s): Hemay005
Intervention type(s): Drug
Intervention description(s): Hemay005 60 mg treatment group (group A): hemay005 tablets 60 mg bid were used during the treatment period; Hemay005 75 mg treatment group (group B): hemay005 75 mg bid was used during the treatment period; Placebo group (Group C): placebo (hemay005 tablet simulant) bid was used during the treatment period;
Other intervention name(s): placebo
Intervention MeSH terms: Hemay005
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: Triple (Participant, Care Provider, Investigator)
Primary purpose: Treatment