Ankylosing Spondylitis
Conditions
Keywords
ankylosing spondylitis, AS, secukinumab, GP2017, adalimumab biosimilar, mSASSS, ASAS20, ASAS40, adult, r-axSpA, AIN457, radiographic, SURPASS
Brief summary
The purpose of this study is to demonstrate the impact of secukinumab on the progression of structural damage in the spine, as measured by the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) in patients with Ankylosing Spondylitis (AS).
Detailed description
This was a Phase IIIb, multi-center, randomized, partially-blinded, active-controlled, parallel-group design in subjects with AS. The study consisted of a screening period (up to 10 weeks before randomization), a treatment period (104 weeks), and two follow-up visits (Weeks 112 and 120). Subjects in both secukinumab dose groups received study treatment at baseline, Weeks 1, 2, 3 and 4 followed by treatment every 4 weeks through Week 100. Subjects in the GP2017 group received study treatment at baseline and every two weeks through Week 102. Subjects could self-administer all secukinumab / placebo and GP2017 doses at the study site or at home. Study treatment (secukinumab vs. GP2017) was provided in an open-label fashion. Subjects in the secukinumab groups were blinded to the dose (150 mg vs. 300 mg). Subjects who received rescue treatment with prohibited medications were allowed to remain in the study but had to discontinue study treatment. Subjects were treated for 104 weeks with two follow-up visits (Weeks 112 and 120). A total of 859 subjects were randomized to treatment at 171 sites in 30 countries in Europe, North America, South America, and Asia. .
Interventions
BIOLOGICALPlacebo
Matching placebo to AIN457 150 mg dose administered with AIN457 via pre-filled syringes
BIOLOGICALGP2017 (adalimumab biosimilar)
40 mg in pre-filled syringes was administered subcutaneously
BIOLOGICALAIN457 150 mg
150 mg in pre-filled syringes was administered subcutaneously
Sponsors
Novartis Pharmaceuticals
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Masking description
The Participant, Care Provider, Investigator and Sponsor are blinded to Secukinumab dose
Intervention model description
Study was partially blinded. Subjects, investigators, site personnel, persons performing the assessments, monitors and the Sponsor remained blinded to the dose group of secukinumab (150 mg versus 300 mg)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Male or non-pregnant, non-nursing female patients at least 18 years of age * Diagnosis of moderate to severe Ankylosing Spondylitis with radiologic evidence (centrally read X-ray) fulfilling the Modified New York criteria for AS despite previous or current NSAID/ nonbiologic DMARD therapy * Active AS assessed by total BASDAI ≥ 4 on a scale of 0-10 * Spinal pain as measured by BASDAI question #2 ≥ 4 (0-10) * Total back pain as measured by visual analog scale (VAS) ≥ 40 mm (0-100 mm) * hsCRP ≥ 5 mg/L OR presence of at least 1 syndesmophyte on centrally read spinal X-ray
Exclusion criteria
* Patients with total ankylosis of the spine * Pregnant or nursing (lactating) women * Evidence of ongoing infectious or malignant process * Previous exposure to any biologic immunomodulating agent, including those targeting IL-17, IL-17 receptor or TNFα * Subjects taking high potency opioid analgesics * Previous treatment with any cell-depleting therapies including but not limited to anti-CD20, investigational agents Other protocol-defined inclusion/
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of Participants With no Radiographic Progression at Week 104 (Multiple Imputation) (Full Analysis Set) | Baseline and at Week 104 | Radiographic progression was based on scores from the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS). The mSASSS is the sum of scores assessing the vertebral corners of the lumbar and cervical spine as 0 (normal), 1 (erosion, sclerosis, or squaring), 2 (syndesmophyte), or 3 (bridging syndesmophyte) with a total range from 0-72. No radiographic progression was defined as the change from baseline in mSASSS score \<= 0.5. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of Participants Without New Syndesmophytes by mSASSS Between Baseline and Week 104 (Multiple Imputation) (Syndesmophyte Subset) | Baseline and at Week 104 | Syndesmophytes are bony growths that develop on corner of the vertebrae of the spine which are indicators of AS. A participant was considered to have a syndesmophyte if at least one reader assessed vertebral corner as \>= 2 at on the mSASSS scale at baseline. Only participants with a syndesmophyte at baseline were evaluated at Week 104 for new syndesmophytes. A new syndesmophyte was a syndesmophyte present at Week 104 which was not present at baseline. Absence of new syndesmophyte was defined as having individual vertebral score \< 2 on the mSASSS scale for all interpretable locations that had no syndesmophyte at baseline. Missing responses for subjects without new syndesmophyte at Week 104 were imputed by multiple imputation (MCMC). |
| Change From Baseline in MRI Berlin Sacroiliac (SI) Joint Edema Score (Observed Data) (MRI Subset) | Baseline and at Week 104 | Magnetic Resonance Images (MRI) of the Sacroiliac Joint (SIJ) were assessed for the presence and severity of SIJ bone marrow edema according to the Berlin Active Inflammatory Lesions Scoring with a minimum score of 0 and a maximum score of 24. Higher scores indicate more inflammation. |
| Change From Baseline in Berlin Modification of ASspiMRI-a Edema Score (MRI Subset) | Baseline and at Week 104 | Magnetic Resonance Images (MRI) of the spine were assessed for the presence and severity of bone marrow edema in the spinal vertebrae according to the Berlin modification of the ASspiMRI-a edema score with a score range of 0 to 69. Higher scores indicate more inflammation. |
| Change From Baseline in mSASSS at Week 104 (Multiple Imputation) (Full Analysis Set) | Baseline and at Week 104 | Radiographic changes in the spine were based on the change in score of the modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS) from baseline to Week 104. The mSASSS is the sum of scores assessing the vertebral corners of the lumbar and cervical spine as 0 (normal), 1 (erosion, sclerosis, or squaring), 2 (syndesmophyte), or 3 (bridging syndesmophyte) with a total range from 0-72. |
| Percentage of Responders for Assessment of SpondyloArthritis International Society 40 (ASAS 40) | Week 104 | Assessment of SpondyloArthritis International Society criteria (ASAS) consist of 4 domains measured on visual analog scales (VAS): 1. Patient's global assessment; 2. Patient's assessment of back pain; 3. Function represented by Bath Ankylosing Spondylitis Functional Index (BASFI) average of 10 questions; 4. Inflammation represented by mean duration and severity of morning stiffness, on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). 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 VAS signifies higher severity. |
| Percentage of Responders for Assessment of SpondyloArthritis International Society With a Partial Remission Response (Full Analysis Set) | Week 104 | The Assessment of SpondyloArthritis International Society (ASAS) partial remission response criteria consisted of the following assessment domains measured on visual analogue scales (VAS): 1. Patient's global assessment; 2. Patient's assessment of back pain; 3. Function represented by BASFI average of 10 questions regarding ability to perform specific tasks; 4. Inflammation represented by mean duration and severity of morning stiffness, on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). The ASAS partial remission criteria was defined as a value not above 2 units in each of the four domains on a scale of 10. |
| Percentage of Participants With Assessment of SpondyloArthritis International Society for Inactive Disease Response (Observed Data) (Full Analysis Set) | Week 104 | The Ankylosing Spondylitis Disease Activity Score (ASDAS) is a composite index to assess disease activity in AS. Parameters used for the ASDAS include spinal pain (BASDAI question 2), the patient's global assessment of disease activity, peripheral pain/swelling (BASDAI question 3), duration of morning stiffness (BASDAI question 6) and C-reactive protein (CRP) in mg/L (Sieper 2009, Lukas 2009). Disease activity states are inactive disease, moderate disease activity, high disease activity, and very high disease activity. The 3 values selected to separate these states were \< 1.3 between inactive disease and moderate disease activity, \< 2.1 between moderate disease activity and high disease activity, and \> 3.5 between high disease activity and very high disease activity. Selected cutoffs for improvement scores were a change ≥ 1.1 unit for minimal clinically important improvement and a change ≥ 2.0 units for major improvement (Machado 2011). |
| Percentage of Responders for Assessment of SpondyloArthritis International Society 20 (ASAS20) | Week 104 | Assessment of SpondyloArthritis International Society criteria (ASAS) consist of 4 domains measured on visual analog scales (VAS): 1. Patient's global assessment; 2. Patient's assessment of back pain; 3. Function represented by Bath Ankylosing Spondylitis Functional Index (BASFI) average of 10 questions; 4. Inflammation represented by mean duration and severity of morning stiffness, on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). 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 VAS signifies higher severity. |
Countries
Argentina, Australia, Belgium, Canada, Chile, Colombia, Czechia, Denmark, Finland, France, Germany, Greece, Israel, Japan, Mexico, Netherlands, Peru, Philippines, Poland, Portugal, Romania, Russia, Slovakia, South Korea, Spain, Taiwan, Turkey (Türkiye), United Kingdom, United States
Participant flow
Pre-assignment details
A total of 859 subjects were randomized to treatment at 171 sites in 30 countries in Europe, North America, South America, and Asia
Participants by arm
| Arm | Count |
|---|---|
| AIN457 150 mg/Placebo AIN457 150 mg and a matching placebo was administered subcutaneously via pre-filled syringes at Baseline, Weeks 1, 2, 3 and 4, followed by dosing every 4 weeks until Week 104 | 287 |
| AIN457 300 mg AIN457 300 mg (2 x 150 mg) was administered subcutaneously via pre-filled syringes at Baseline, Weeks 1, 2, 3 and 4, followed by dosing every 4 weeks until Week 104 | 286 |
| GP2017 40mg GP2017 (adalimumab biosimilar) 40 mg was administered subcutaneously via pre-filled syringes at Baseline followed by dosing every 2 weeks until Week 104 | 286 |
| Total | 859 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 | FG002 |
|---|---|---|---|---|
| Overall Study | Adverse Event | 9 | 12 | 8 |
| Overall Study | Death | 1 | 1 | 3 |
| Overall Study | Lost to Follow-up | 2 | 4 | 3 |
| Overall Study | New Therapy For Study Indication | 1 | 2 | 2 |
| Overall Study | Physician Decision | 4 | 12 | 10 |
| Overall Study | Pregnancy | 1 | 1 | 0 |
| Overall Study | Progressive Disease | 1 | 0 | 0 |
| Overall Study | Protocol Deviation | 1 | 1 | 3 |
| Overall Study | Subject/Guardian Decision | 13 | 16 | 14 |
Baseline characteristics
| Characteristic | AIN457 150 mg/Placebo | AIN457 300 mg | GP2017 40mg | Total |
|---|---|---|---|---|
| Age, Continuous | 42.1 years STANDARD_DEVIATION 11.99 | 42.2 years STANDARD_DEVIATION 12.47 | 41.9 years STANDARD_DEVIATION 12.68 | 42.1 years STANDARD_DEVIATION 12.37 |
| Modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) scores | 17.602 score on a scale STANDARD_DEVIATION 21.3286 | 16.527 score on a scale STANDARD_DEVIATION 20.8153 | 15.695 score on a scale STANDARD_DEVIATION 19.4955 | 16.609 score on a scale STANDARD_DEVIATION 20.5506 |
| Race/Ethnicity, Customized American Indian or Alaska Native | 19 Participants | 15 Participants | 7 Participants | 41 Participants |
| Race/Ethnicity, Customized Asian | 40 Participants | 39 Participants | 50 Participants | 129 Participants |
| Race/Ethnicity, Customized Black or African American | 1 Participants | 2 Participants | 0 Participants | 3 Participants |
| Race/Ethnicity, Customized Multiple | 1 Participants | 3 Participants | 1 Participants | 5 Participants |
| Race/Ethnicity, Customized Other | 1 Participants | 0 Participants | 0 Participants | 1 Participants |
| Race/Ethnicity, Customized White | 225 Participants | 227 Participants | 228 Participants | 680 Participants |
| Sex: Female, Male Female | 57 Participants | 63 Participants | 65 Participants | 185 Participants |
| Sex: Female, Male Male | 230 Participants | 223 Participants | 221 Participants | 674 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk |
|---|---|---|---|
| deaths Total, all-cause mortality | 1 / 286 | 1 / 285 | 3 / 285 |
| other Total, other adverse events | 106 / 286 | 107 / 285 | 99 / 285 |
| serious Total, serious adverse events | 40 / 286 | 29 / 285 | 32 / 285 |
Outcome results
Primary
Percentage of Participants With no Radiographic Progression at Week 104 (Multiple Imputation) (Full Analysis Set)
Radiographic progression was based on scores from the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS). The mSASSS is the sum of scores assessing the vertebral corners of the lumbar and cervical spine as 0 (normal), 1 (erosion, sclerosis, or squaring), 2 (syndesmophyte), or 3 (bridging syndesmophyte) with a total range from 0-72. No radiographic progression was defined as the change from baseline in mSASSS score \<= 0.5.
Time frame: Baseline and at Week 104
Population: Full analysis set
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| AIN457 150 mg/Placebo | Percentage of Participants With no Radiographic Progression at Week 104 (Multiple Imputation) (Full Analysis Set) | 66.1 Percentage of participants |
| AIN457 300 mg | Percentage of Participants With no Radiographic Progression at Week 104 (Multiple Imputation) (Full Analysis Set) | 66.9 Percentage of participants |
| GP2017 40mg | Percentage of Participants With no Radiographic Progression at Week 104 (Multiple Imputation) (Full Analysis Set) | 65.6 Percentage of participants |
p-value: 0.716495% CI: [-6.63, 9.64]Regression, Logistic
p-value: 0.692595% CI: [-6.61, 9.95]Regression, Logistic
Secondary
Change From Baseline in Berlin Modification of ASspiMRI-a Edema Score (MRI Subset)
Magnetic Resonance Images (MRI) of the spine were assessed for the presence and severity of bone marrow edema in the spinal vertebrae according to the Berlin modification of the ASspiMRI-a edema score with a score range of 0 to 69. Higher scores indicate more inflammation.
Time frame: Baseline and at Week 104
Population: MRI subset only included participants who had an MRI performed at selected centers
| Arm | Measure | Value (LEAST_SQUARES_MEAN) | Dispersion |
|---|---|---|---|
| AIN457 150 mg/Placebo | Change From Baseline in Berlin Modification of ASspiMRI-a Edema Score (MRI Subset) | -1.224 Berlin mod. of ASspiMRI-a edema scores | Standard Error 0.2306 |
| AIN457 300 mg | Change From Baseline in Berlin Modification of ASspiMRI-a Edema Score (MRI Subset) | -1.683 Berlin mod. of ASspiMRI-a edema scores | Standard Error 0.2373 |
| GP2017 40mg | Change From Baseline in Berlin Modification of ASspiMRI-a Edema Score (MRI Subset) | -2.101 Berlin mod. of ASspiMRI-a edema scores | Standard Error 0.2378 |
Comparison: Week 104 - 150 mg95% CI: [0.22, 1.53]
Comparison: Week 104 - 300 mg95% CI: [-0.24, 1.08]
Secondary
Change From Baseline in MRI Berlin Sacroiliac (SI) Joint Edema Score (Observed Data) (MRI Subset)
Magnetic Resonance Images (MRI) of the Sacroiliac Joint (SIJ) were assessed for the presence and severity of SIJ bone marrow edema according to the Berlin Active Inflammatory Lesions Scoring with a minimum score of 0 and a maximum score of 24. Higher scores indicate more inflammation.
Time frame: Baseline and at Week 104
Population: MRI subset only included participants who had an MRI performed at selected centers
| Arm | Measure | Value (LEAST_SQUARES_MEAN) | Dispersion |
|---|---|---|---|
| AIN457 150 mg/Placebo | Change From Baseline in MRI Berlin Sacroiliac (SI) Joint Edema Score (Observed Data) (MRI Subset) | -1.527 scores on a scale | Standard Error 0.1057 |
| AIN457 300 mg | Change From Baseline in MRI Berlin Sacroiliac (SI) Joint Edema Score (Observed Data) (MRI Subset) | -1.378 scores on a scale | Standard Error 0.1097 |
| GP2017 40mg | Change From Baseline in MRI Berlin Sacroiliac (SI) Joint Edema Score (Observed Data) (MRI Subset) | -1.710 scores on a scale | Standard Error 0.1087 |
Comparison: Week 104 - 150 mg95% CI: [-0.12, 0.48]
Comparison: Week 104 - 300 mg95% CI: [0.03, 0.64]
Secondary
Change From Baseline in mSASSS at Week 104 (Multiple Imputation) (Full Analysis Set)
Radiographic changes in the spine were based on the change in score of the modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS) from baseline to Week 104. The mSASSS is the sum of scores assessing the vertebral corners of the lumbar and cervical spine as 0 (normal), 1 (erosion, sclerosis, or squaring), 2 (syndesmophyte), or 3 (bridging syndesmophyte) with a total range from 0-72.
Time frame: Baseline and at Week 104
Population: Full analysis set
| Arm | Measure | Value (LEAST_SQUARES_MEAN) | Dispersion |
|---|---|---|---|
| AIN457 150 mg/Placebo | Change From Baseline in mSASSS at Week 104 (Multiple Imputation) (Full Analysis Set) | 0.54 mSASSS scores | Standard Error 0.175 |
| AIN457 300 mg | Change From Baseline in mSASSS at Week 104 (Multiple Imputation) (Full Analysis Set) | 0.55 mSASSS scores | Standard Error 0.18 |
| GP2017 40mg | Change From Baseline in mSASSS at Week 104 (Multiple Imputation) (Full Analysis Set) | 0.72 mSASSS scores | Standard Error 0.177 |
95% CI: [-0.646, 0.293]
95% CI: [-0.639, 0.315]
Secondary
Percentage of Participants With Assessment of SpondyloArthritis International Society for Inactive Disease Response (Observed Data) (Full Analysis Set)
The Ankylosing Spondylitis Disease Activity Score (ASDAS) is a composite index to assess disease activity in AS. Parameters used for the ASDAS include spinal pain (BASDAI question 2), the patient's global assessment of disease activity, peripheral pain/swelling (BASDAI question 3), duration of morning stiffness (BASDAI question 6) and C-reactive protein (CRP) in mg/L (Sieper 2009, Lukas 2009). Disease activity states are inactive disease, moderate disease activity, high disease activity, and very high disease activity. The 3 values selected to separate these states were \< 1.3 between inactive disease and moderate disease activity, \< 2.1 between moderate disease activity and high disease activity, and \> 3.5 between high disease activity and very high disease activity. Selected cutoffs for improvement scores were a change ≥ 1.1 unit for minimal clinically important improvement and a change ≥ 2.0 units for major improvement (Machado 2011).
Time frame: Week 104
Population: Full analysis set for the population to be analyzed in this secondary outcome: AIN457 150 mg and AIN457 300 mg arms.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| AIN457 150 mg/Placebo | Percentage of Participants With Assessment of SpondyloArthritis International Society for Inactive Disease Response (Observed Data) (Full Analysis Set) | 31.1 Percentage of participants |
| AIN457 300 mg | Percentage of Participants With Assessment of SpondyloArthritis International Society for Inactive Disease Response (Observed Data) (Full Analysis Set) | 31.7 Percentage of participants |
95% CI: [-7.08, 7.74]
Secondary
Percentage of Participants Without New Syndesmophytes by mSASSS Between Baseline and Week 104 (Multiple Imputation) (Syndesmophyte Subset)
Syndesmophytes are bony growths that develop on corner of the vertebrae of the spine which are indicators of AS. A participant was considered to have a syndesmophyte if at least one reader assessed vertebral corner as \>= 2 at on the mSASSS scale at baseline. Only participants with a syndesmophyte at baseline were evaluated at Week 104 for new syndesmophytes. A new syndesmophyte was a syndesmophyte present at Week 104 which was not present at baseline. Absence of new syndesmophyte was defined as having individual vertebral score \< 2 on the mSASSS scale for all interpretable locations that had no syndesmophyte at baseline. Missing responses for subjects without new syndesmophyte at Week 104 were imputed by multiple imputation (MCMC).
Time frame: Baseline and at Week 104
Population: Syndesmophyte subset only included participants who had a syndesmophyte at baseline as measured on the mSASSS scale.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| AIN457 150 mg/Placebo | Percentage of Participants Without New Syndesmophytes by mSASSS Between Baseline and Week 104 (Multiple Imputation) (Syndesmophyte Subset) | 56.9 Percentage of participants |
| AIN457 300 mg | Percentage of Participants Without New Syndesmophytes by mSASSS Between Baseline and Week 104 (Multiple Imputation) (Syndesmophyte Subset) | 53.8 Percentage of participants |
| GP2017 40mg | Percentage of Participants Without New Syndesmophytes by mSASSS Between Baseline and Week 104 (Multiple Imputation) (Syndesmophyte Subset) | 53.3 Percentage of participants |
95% CI: [-5.62, 14.27]
95% CI: [-9.13, 11.31]
Secondary
Percentage of Responders for Assessment of SpondyloArthritis International Society 20 (ASAS20)
Assessment of SpondyloArthritis International Society criteria (ASAS) consist of 4 domains measured on visual analog scales (VAS): 1. Patient's global assessment; 2. Patient's assessment of back pain; 3. Function represented by Bath Ankylosing Spondylitis Functional Index (BASFI) average of 10 questions; 4. Inflammation represented by mean duration and severity of morning stiffness, on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). 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 VAS signifies higher severity.
Time frame: Week 104
Population: Full analysis set for the population to be analyzed in this secondary outcome: AIN457 150 mg and AIN457 300 mg arms.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| AIN457 150 mg/Placebo | Percentage of Responders for Assessment of SpondyloArthritis International Society 20 (ASAS20) | 83.1 Percentage of participants |
| AIN457 300 mg | Percentage of Responders for Assessment of SpondyloArthritis International Society 20 (ASAS20) | 82.9 Percentage of participants |
95% CI: [-5.1, 8.18]
Secondary
Percentage of Responders for Assessment of SpondyloArthritis International Society 40 (ASAS 40)
Assessment of SpondyloArthritis International Society criteria (ASAS) consist of 4 domains measured on visual analog scales (VAS): 1. Patient's global assessment; 2. Patient's assessment of back pain; 3. Function represented by Bath Ankylosing Spondylitis Functional Index (BASFI) average of 10 questions; 4. Inflammation represented by mean duration and severity of morning stiffness, on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). 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 VAS signifies higher severity.
Time frame: Week 104
Population: Full analysis set for the population to be analyzed in this secondary outcome: AIN457 150 mg and AIN457 300 mg arms.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| AIN457 150 mg/Placebo | Percentage of Responders for Assessment of SpondyloArthritis International Society 40 (ASAS 40) | 69.9 Percentage of participants |
| AIN457 300 mg | Percentage of Responders for Assessment of SpondyloArthritis International Society 40 (ASAS 40) | 73.5 Percentage of participants |
95% CI: [-10.18, 5.51]
Secondary
Percentage of Responders for Assessment of SpondyloArthritis International Society With a Partial Remission Response (Full Analysis Set)
The Assessment of SpondyloArthritis International Society (ASAS) partial remission response criteria consisted of the following assessment domains measured on visual analogue scales (VAS): 1. Patient's global assessment; 2. Patient's assessment of back pain; 3. Function represented by BASFI average of 10 questions regarding ability to perform specific tasks; 4. Inflammation represented by mean duration and severity of morning stiffness, on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). The ASAS partial remission criteria was defined as a value not above 2 units in each of the four domains on a scale of 10.
Time frame: Week 104
Population: Full analysis set for the population to be analyzed in this secondary outcome: AIN457 150 mg and AIN457 300 mg arms.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| AIN457 150 mg/Placebo | Percentage of Responders for Assessment of SpondyloArthritis International Society With a Partial Remission Response (Full Analysis Set) | 31.5 Percentage participants |
| AIN457 300 mg | Percentage of Responders for Assessment of SpondyloArthritis International Society With a Partial Remission Response (Full Analysis Set) | 30.2 Percentage participants |
95% CI: [-5.34, 9.69]Marginal difference