The purpose of the 12-week core study was to demonstrate that canakinumab given upon acute gout flares relieves the signs and symptoms and prevents recurrence of gout flares in patients with frequent flares of gout for whom non-steroidal anti-inflammatory drugs (NSAIDs) and/ or colchicine are contraindicated, not tolerated, or ineffective. The efficacy of canakinumab was compared to the corticosteroid triamcinolone acetonide. The purpose of the first 12-week extension study was to collect additional safety, tolerability and efficacy data in patients who have completed the core study CACZ885H2356. The purpose of the second 48 week open-label extension study was to collect additional long-term safety and tolerability data in patients who have completed the first extension study CACZ885H2356E1.
Masking: Core: Double Blind (Subject, Investigator) Extension 1: Double Blind (Subject, Investigator) Extension 2: Open-label, terminated
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
230
Canakinumab 150 mg was supplied in 6 mL glass vials each containing nominally 150 mg canakinumab (plus 20% overfill).
Triamcinolone acetonide 40 mg was supplied as a suspension.
Placebo to canakinumab was supplied in 6 mL glass vials containing placebo powder as a lyophilized cake.
Placebo triamcinolone acetonide was supplied as a lipid emulsion similar in appearance to triamcinolone acetonide.
Novartis Investigative Site
Darlinghurst, New South Wales, Australia
Novartis Investigative Site
Fitzroy, Victoria, Australia
Novartis Investigative Site
Heidelberg, Victoria, Australia
Novartis Investigative Site
Daw Park SA, Australia
Novartis Investigative site
Gozée, Belgium
Novartis Investigative Site
Time to First New Flare
Kaplan-Meier estimates of time to first new flare and confidence intervals were determined. For patients with event, time to event = (date of event - date of first dose of study drug + 1). Patients met definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Patients did not meet criterion of having new gout flare if: · Increasing/renewed gout pain in an affected joint before flare has resolved completely.
Time frame: 12 weeks
Self-assessed Pain Intensity in the Joint Most Affected at Baseline Measured on a Visual Analog Scale (0-100mm VAS)
Patients scored their pain intensity in the joint most affected at baseline on a 0-100 mm VAS, ranging from no pain (0) to unbearable pain (100), at 72 hours post-dose. Scores on the 100 mm linear scale were measured to the nearest millimeter from the left. The ANCOVA analysis included treatment group, Baseline VAS score, and body mass index (BMI) at Baseline as covariates.
Time frame: 72 hours post-dose (randomization)
Number of Participants With Adverse Events (AE), Death and Serious Adverse Events (24 Weeks Overall)
This was the primary endpoint of both extension studies. Adverse event is defined as any unfavorable and unintended diagnosis, symptom, sign(including an abnormal laboratory finding),syndrome or disease which either occurs during the study, having been absent at baseline, or,if present at baseline, appears to worsen. Serious adverse event is defined as any untoward medical occurrence that results in death, is life threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, or is a congenital anomaly/birth defect.
Time frame: 24 weeks overall
Number of Participants With Adverse Events (AE), Death and Serious Adverse Events (72 Weeks Overall)
This was the primary endpoint of both extension studies. Adverse event is defined as any unfavorable and unintended diagnosis, symptom, sign(including an abnormal laboratory finding),syndrome or disease which either occurs during the study, having been absent at baseline, or,if present at baseline, appears to worsen. Serious adverse event is defined as any untoward medical occurrence that results in death, is life threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, or is a congenital anomaly/birth defect.
Time frame: 72 weeks overall
Time to at Least a 50% Reduction in Self-assessed Pain Intensity in the Joint Most Affected at Baseline Measured on a Visual Analog Scale (0-100mm VAS)
The Kaplan-Meier estimates of the time to at least a 50% reduction in self-assessed pain intensity in the joint most affected at baseline was determined along with the 95% confidence interval. Patients scored their pain intensity on a 0-100 mm VAS, ranging from no pain (0) to unbearable pain (100). Scores on the 100 mm linear scale were measured to the nearest millimeter from the left. Pain was scored at Baseline; at 6 and 12 hours post-dose; and at 1, 2, 3, 4, 5, 6, and 7 days post-dose.
Time frame: From baseline to 7 days post dose (randomization)
Time to Complete Resolution of Pain
Patients scored their pain intensity on a 5-point Likert scale (none, mild, moderate, severe, extreme). Complete Resolution of Pain is defined as no pain (None) on the Likert Scale. Pain was scored at Baseline; at 6 and 12 hours post-dose; and at 1, 2, 3, 4, 5, 6, and 7 days post-dose. The Kaplan-Meier estimates of time to complete resolution of self-assessed pain intensity in the joint most affected and their confidence intervals were determined.
Time frame: 7 days post-dose (randomization)
Percentage of Participants With Complete Resolution of Pain
Patients scored their pain intensity on a 5-point Likert scale (none, mild, moderate, severe, extreme). Pain was scored at Baseline; at 6 and 12 hours post-dose; and at 1, 2, 3, 4, 5, 6, and 7 days post-dose. Complete Resolution of Pain is defined as no pain (None) on the Likert Scale. The Kaplan-Meier estimates of cumulative event rate = percentage of participants with event up to the end of the time interval.
Time frame: 7 days post-dose (randomization)
Percentage of Participants With at Least 1 New Gout Flare During the 12 Weeks
Patients met definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Patients did not meet criterion of having new gout flare if: · Increasing/renewed gout pain in an affected joint before the flare has resolved completely.
Time frame: 12 weeks
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Mount Pearl, Newfoundland and Labrador, Canada
Novartis Investigative site
St. John's, Newfoundland and Labrador, Canada
Novartis Investigative site
Hamilton, Ontario, Canada
Novartis Investigative site
Barranquilla, Colombia
Novartis Investigative site
Bogotá, Colombia
...and 37 more locations
Mean Number of New Gout Flares Per Patient
Patients met definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Patients did not meet criterion of having new gout flare if: · Increasing/renewed gout pain in an affected joint before the flare has resolved completely.
Time frame: 12 weeks
SF36 Physical Function Score at Week 12
The SF-36 measures the impact of disease on overall quality of life (QoL). This 36-item survey has 8 subscales that can be aggregated into physical- and mental-component summary scores. Scores are standardized with the use of norm-based methods based on an assessment of the general U.S. population free of chronic conditions. Scores range from 1-100 with a mean=50 and a standard deviation=10. A higher score indicates less impact on QoL. A negative change score indicates improvement. An ANCOVA model was used with treatment group and baseline SF-36 physical function subscore as covariates.
Time frame: Week 12
Time to First New Flare
Kaplan-Meier (KM) estimates of time to first new flare and confidence intervals were determined. Patients met definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Patients did not meet criterion of having new gout flare if: · Increasing/renewed gout pain in an affected joint before the flare has resolved completely.
Time frame: 24 weeks
Mean Number of New Gout Flares Per Patient During the 24 Weeks of the Study
Patients met definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Patients did not meet criterion of having new gout flare if: · Increasing/renewed gout pain in an affected joint before the flare has resolved completely.
Time frame: 24 weeks
Time to First Intake of Rescue Medication After the Last Post Baseline Flare.
The Kaplan-Meier estimates of medians and 95% confidence intervals were used to calculate the endpoint.
Time frame: 72 hours post-dose for the last post-baseline flare (during 24 weeks overall)
Patient's Assessment of Gout Pain Intensity in the Most Affected Joint on a Visual Analog Scale (VAS) in Extension
Patients scored their pain intensity in the joint most affected at baseline on a 0-100 mm VAS, ranging from no pain (0) to unbearable pain (100). Scores on the 100 mm linear scale were measured to the nearest millimeter from the left. The ANCOVA analysis included treatment group, Baseline VAS score, and body mass index (BMI) at Baseline as covariates.
Time frame: 72 hours post-dose for the last post-baseline flare (during 24 weeks overall)
Percentage of Participants With Maximum Severity of Last Post-baseline Flare (5-point Likert Scale)
Maximum severity is the maximum Likert score recorded after the start of the flare. Participant scored their current pain intensity in the most affected joint of the gout flare on a 5-point Likert Scale (none, mild, moderate, severe, extreme). It participant had a new flare, they also scored the maximum amount of acute gout pain in the most affected joint since the onset of a new flare on 5 point Likert scale (none, mild, moderate, severe, extreme).
Time frame: Last post-baseline flare (during 24 weeks overall)
Amount of Rescue Medication Taken
Patients who had difficulty in tolerating their pain were allowed to take rescue medication after the 6-hour post-dose pain assessments as follows: * Acetaminophen (paracetamol) 500 mg and/ or codeine 30 mg as required. A maximum of 1 g/dose or 3 g/day of acetaminophen and 30 mg/ dose or 180 mg/day of codeine was allowed. * If they had insufficient pain relief, patients were allowed to take a maximum of 30 mg of oral prednisolon as required per day for 2 days followed by up to 20 mg of prednisolone as required subsequent days within 7 days of a gout flare.
Time frame: 7 days last post-baseline flare (during 24 weeks)
Percentage of Participants Who Took Rescue Medication
Patients who had difficulty in tolerating their pain were allowed to take rescue medication after the 6-hour post-dose pain assessments. Permitted rescue medications included acetaminophen 500 mg and/ or codeine 30 mg as needed. If they had insufficient pain relief, patients were allowed to take a maximum of 30 mg of oral prednisolone as needed per day for 2 days followed by up to 20 mg of prednisolone as needed per day for 3 subsequent days within 7 days after randomization or after re-dose/injection administration.
Time frame: during 12 weeks core, 24 weeks overall
High-sensitivity C-reactive Protein (hsCRP) and Serum Amyloid A Protein (SAA) Levels for Core and 24 Weeks Overall
High sensitivity C-reactive protein (hsCRP) and serum amyloid A (SAA) were determined in blood serum in order to identify the presence of inflammation, to determine its severity, and to monitor the response to treatment. Analytes were measured by a central laboratory. The analysis included treatment group, log-transformed protein level at baseline, and body mass index (BMI) at baseline as covariates.
Time frame: 72 hours post-dose (randomization), 72 hours post-dose for the last post-baseline flare (during 24 weeks overall)
Physician's Global Assessment of Response to Treatment
The study physician made a global assessment of the patient's response to treatment using a 5-point Likert scale: Very good, good, fair, poor, very poor. The percentage of patients in each category is reported. The physician completed the assessment without viewing any of the patient's assessments (pain intensity \[Visual Analog Scale and Likert scale\] and patient's global assessment of response to treatment).
Time frame: 72 hours post-dose (randomization), 72 hours post-dose for the last post-baseline flare (during 24 weeks overall)
Patient's Global Assessment of Response to Treatment
Patients made a global assessment of response to treatment using a 5-point Likert scale: Excellent, good, acceptable, slight, poor. Percentage of participants in each category for both core and extension periods were measured.
Time frame: 72 hours post-dose (randomization), 72 hours post-dose for the last post-baseline flare (during 24 weeks overall)
Physician's Assessment of Tenderness, Swelling, and Erythema of the Most Affected Joint
The study physician assessed the most affected joint for: Tenderness on a 0-3 point scale: No pain, patient states that "there is pain", patient states "there is pain and winces", and patient states "there is pain, winces, and withdraws" on palpation or passive movement of the affected study joint; Swelling on a 0-3 point scale: No swelling, palpable, visible, and bulging beyond the joint margins; and Erythema: Present or absent. The percentage of patients in each category is reported.
Time frame: 72 hours post-dose (randomization), 72 hours post-dose for the last post-baseline flare (during 24 weeks overall)
Physician's Assessment of Range of Motion of the Most Affected Joint
The study physician assessed the range of motion of the most affected joint for range of motion on a 5-point Likert scale: Normal, mildly restricted, moderately restricted, severely restricted, immobilized. The percentage of patients in each category is reported.
Time frame: 72 hours post-dose (randomization), 72 hours post-dose for the last post-baseline flare (24 weeks overall)
Patient's Assessment of Gout Pain Intensity in the Most Affected Joint (Likert Scale)
Participant scored their current pain intensity in the most affected joint of the gout flare on a 5-point Likert Scale (none, mild, moderate, severe, extreme). It participant had a new flare, they also scored the maximum amount of acute gout pain in the most affected joint since the onset of a new flare on 5 point Likert scale (none, mild, moderate, severe, extreme).
Time frame: 7 days post dose (randomization), 24 weeks post-dose
Time to First New Flare: Survival Analysis by Treatment (72 Weeks Overall)
Kaplan-Meier estimates of time to first new flare and confidence intervals were determined. For patients with event, time to event = (date of event - date of first dose of study drug + 1). Patients met definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Patients did not meet criterion of having new gout flare if: · Increasing/renewed gout pain in an affected joint before flare has resolved completely.
Time frame: 72 weeks overall
Flare Rate Per Year
Flare rate was calculated as the number of new flares over the period of observation in years. Flare rate was calculated using only those new flares before switching to canakinumab. Patients met definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Patients did not meet criterion of having new gout flare if: · Increasing/renewed gout pain in an affected joint before the flare has resolved completely.
Time frame: 72 weeks overall
High-sensitivity C-reactive Protein (hsCRP) Levels for Patients Re-treated With or Switched to Canakinumab
High sensitivity C-reactive protein (hsCRP) levels were determined in blood serum in order to identify the presence of inflammation, to determine its severity, and to monitor the response to treatment. Analytes were measured by a central laboratory. The treatment effect reported for canakinumab arm was for last post-baseline flare after re-treated with canakinumab and for patient which switched to Canakinumab arm was for first post-baseline flare after receiving the first dose of canakinumab.
Time frame: 24 hours, 72 hours, 7 days, 4 weeks, 8 weeks and 12 weeks post-dose for the last post-baseline flare for patients re-treated with canakinumab or first post-baseline flare treated with canakinumab for patients switched treatment (during 72 weeks overall)
Serum Amyloid A Protein (SAA) Levels for Patients Re-treated With or Switched to Canakinumab
Serum Amyloid A Protein (SAA) levels were determined in blood serum in order to identify the presence of inflammation, to determine its severity, and to monitor the response to treatment. Analytes were measured by a central laboratory. The treatment effect reported for canakinumab arm was for last post-baseline flare after re-treated with canakinumab and for patient which switched to Canakinumab arm was for first post-baseline flare after receiving the first dose of canakinumab.
Time frame: 24 hours, 72 hours, 7 days, 4 weeks, 8 weeks and 12 weeks post-dose for the last post-baseline flare for patients re-treated with canakinumab or first post-baseline flare treated with canakinumab for patients switched treatment (during 72 weeks overall)
Physician's Global Assessment of Response to Treatment for Patients Re-treated or Switched to Canakinumab
The study physician made a global assessment of the patient's response to treatment using a 5-point Likert scale: Very good, good, fair, poor, very poor. The percentage of patients in each category is reported. The physician completed the assessment without viewing any of the patient's assessments (pain intensity \[Visual Analog Scale and Likert scale\] and patient's global assessment of response to treatment). The treatment effect reported for canakinumab arm was for last post-baseline flare after re-treated with canakinumab and for patient which switched to Canakinumab arm was for first post-baseline flare after receiving the first dose of canakinumab.
Time frame: 72 hours post-dose , 7 days post-dose for the last post-baseline flare for patients re-treated with canakinumab or first post-baseline flare treated with canakinumab for patients switched treatment (during 72 weeks overall)
Patient's Assessment of Gout Pain Intensity in the Currently Most-affected Joint (Likert Scale)
Participant scored their current pain intensity in the most affected joint of the gout flare on a 5-point Likert Scale (none, mild, moderate, severe, extreme). It participant had a new flare, they also scored the maximum amount of acute gout pain in the most affected joint since the onset of a new flare on 5 point Likert scale (none, mild, moderate, severe, extreme). The treatment effect reported for canakinumab arm was for last post-baseline flare after re-treated with canakinumab and for patient which switched to Canakinumab arm was for first post-baseline flare after receiving the first dose of canakinumab.
Time frame: 72 hours post-dose , 7 days post dose for the last post-baseline flare for patients re-treated with canakinumab or the first post-baseline flare treated with canakinumab for patients who switched treatment (during 72 weeks overall)
Patient's Global Assessment of Response to Treatment for Patients Re-treated or Switched to Canakinumab
Patients made a global assessment of response to treatment using a 5-point Likert scale: Excellent, good, acceptable, slight, poor. Percentage of participants in each category for both core and extension periods were measured. The treatment effect reported for canakinumab arm was for last post-baseline flare after re-treated with canakinumab and for patient which switched to Canakinumab arm was for first post-baseline flare after receiving the first dose of canakinumab.
Time frame: 72 hours post-dose , 7 days post dose for the last post-baseline flare for patients re-treated with canakinumab or the first post-baseline flare treated with canakinumab for patients who switched treatment (during 72 weeks overall)
Physician's Assessment of Joint Tenderness for Patients Re-treated or Switched to Canakinumab
The study physician assessed the most affected joint for: Tenderness on a 0-3 point scale: No pain, patient states that "there is pain", patient states "there is pain and winces", and patient states "there is pain, winces, and withdraws" on palpation or passive movement of the affected study joint; The percentage of patients in each category is reported. The treatment effect reported for canakinumab arm was for last post-baseline flare after re-treated with canakinumab and for patient which switched to Canakinumab arm was for first post-baseline flare after receiving the first dose of canakinumab.
Time frame: 72 hours post-dose , 7 days post dose last post-baseline flare for patients re-treated with canakinumab or the first post-baseline flare treated with canakinumab for patients who switched treatment (during 72 weeks overall)
Physician's Assessment of Joint Swelling for Patients Re-treated or Switched to Canakinumab
The study physician assessed the most affected joint for: Swelling on a 0-3 point scale: No swelling, palpable, visible, and bulging beyond the joint margins; The percentage of patients in each category is reported. The treatment effect reported for canakinumab arm was for last post-baseline flare after re-treated with canakinumab and for patient which switched to Canakinumab arm was for first post-baseline flare after receiving the first dose of canakinumab.
Time frame: 72 hours post-dose , 7 days post dose last post-baseline flare for patients re-treated with canakinumab or the first post-baseline flare treated with canakinumab for patients who switched treatment (during 72 weeks overall)
Physician's Assessment of Erythema for Patients Re-treated or Switched to Canakinumab
The study physician assessed the most affected joint for Erythema: Present or absent. The percentage of patients in each category is reported. The treatment effect reported for canakinumab arm was for last post-baseline flare after re-treated with canakinumab and for patient which switched to Canakinumab arm was for first post-baseline flare after receiving the first dose of canakinumab.
Time frame: 72 hours post-dose , 7 days post dose for the last post-baseline flare for patients re-treated with canakinumab or the first post-baseline flare treated with canakinumab for patients who switched treatment (during 72 weeks overall)