A Study to Evaluate 608 in Patients With Non- Radiographic Axial Spondyloarthritis (Nr-axSpA)

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorSunshine Guojian Pharmaceutical (Shanghai) Co., Ltd.

About this trial

This study will evaluate the effect and safety of 608 in patients with nr-axSpA.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Female and male patients at least 18 years of age at the time of screening.

Diagnosis of axial spondyloarthritis according to Ankylosing Spondylo Arthritis International Society (ASAS) axial spondyloarthritis criteria

Objective signs of inflammation (magnetic resonance imaging (MRI) or abnormal C-reactive protein)

Total back pain as measured by NRS ≥ 4 at baseline

Disqualifiers

Patients with other uncontrolled active inflammatory diseases.

Clinical laboratory tests and other tests that reveal abnormalities with clinical significance

Patients who have active Hepatitis B, Hepatitis C or HIV infections as determined by positive results at Screening.

History of cancer.

Trial design

Design model

Parallel

Treatments tested in this trial

  • 608

    Drug

    608 subcutaneous (SC) injection.

  • 608

    Drug

    608 subcutaneous (SC) injection.

  • Placebo

    Drug

    Placebo subcutaneous (SC) injection.

Treatment groups

180 Participants
are divided into 3 treatment groups
Group A: 608 Dose AExperimental treatment 1 intervention
Group B: 608 Dose BExperimental treatment 1 intervention
Group C: PlaceboPlacebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

The Percentage of Participants Who Achieved an Assessment of Spondylo Arthritis International Society (ASAS) 40 Response

Assessment of Spondylo Arthritis International Society criteria (ASAS) consist of 6 domains (4 main and 2 additional assessment domains): 1. Patient's global assessment measured on a NRS; 2. Patient's assessment of back pain, measured on a NRS; 3. Function represented by Bath Ankylosing Spondylitis Functional Index (BASFI) average of 10 questions as measured by NRS; 4. Inflammation represented by mean duration and severity of morning stiffness, on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) as measured by NRS; 5. Spinal mobility represented by the Bath Ankylosing Spondylitis Metrology Index (BASMI) lateral spinal flexion assessment; 6. C-reactive protein (acute phase reactant). ASAS40 response is defined as an improvement of ≥40% and ≥2 units on a scale of 10 in at least three of the four ASAS main domains and no worsening at all in the remaining domain. A higher score on the NRS signifies higher severity.

Time frame
From Baseline to Week 16

Secondary outcomes

1

The Percentage of Participants Who Achieved an Assessment of Spondylo Arthritis International Society (ASAS) 20 Response

Assessment of Spondylo Arthritis International Society criteria (ASAS) consist of 6 domains (4 main and 2 additional assessment domains): 1. Patient's global assessment measured on a NRS; 2. Patient's assessment of back pain, measured on a NRS; 3. Function represented by Bath Ankylosing Spondylitis Functional Index (BASFI) average of 10 questions as measured by NRS; 4. Inflammation represented by mean duration and severity of morning stiffness, on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) as measured by NRS; 5. Spinal mobility represented by the Bath Ankylosing Spondylitis Metrology Index (BASMI) lateral spinal flexion assessment; 6. C-reactive protein (acute phase reactant). ASAS 20 response is defined as an improvement of ≥20% and ≥1 unit on a scale of 10 in at least three of the four main domains and no worsening of ≥20% and ≥1 unit on a scale of 10 in the remaining domain. A higher score on the NRS signifies higher severity.

Time frame
From Baseline to the Week 16
2

608 Concentration in Serum

The concentration of 608 in Serum.

Time frame
From Baseline to Week 24

Other outcomes

Sponsors and contacts

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