Trial Outcomes & Findings for Study to Assess the Safety, Pharmacokinetics, and Efficacy of KPL-404 in Participants With Rheumatoid Arthritis With Inadequate Response or Intolerance to at Least One Biologic Disease-modifying Anti-rheumatic Drug or a Janus Kinase Inhibitor (NCT NCT05198310)

NCT ID: NCT05198310

Last Updated: 2025-07-22

Results Overview

Adverse event (AE): any untoward medical occurrence, which does not necessarily have a causal relationship with this treatment. Serious AE (SAE): AE that: results in death; is immediately life-threatening; requires in-patient hospitalization/prolongation of existing hospitalization; results in persistent or significant disability/incapacity; results in a congenital abnormality/birth defect; is an important medical event. TEAEs: AEs not present before exposure to study drug or any event already present that worsens in either intensity or frequency after exposure to study drug during treatment period. AE severity: mild (Grade \[Gr\] 1); moderate (Gr 2); severe (Gr 3); potentially life threatening (Gr 4); death (Gr 5). AEs of special interest: thrombosis, serious infection, serious and non-serious bacterial infections, eye disorders, and anaphylaxis/hypersensitivity reactions.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

145 participants

Primary outcome timeframe

From first dose of study drug to 24 weeks

Results posted on

2025-07-22

Participant Flow

Participant milestones

Participant milestones
Measure
Cohort 1 KPL-404 2 mg/kg Every 2 Weeks (q2wk)
KPL-404 2 mg/kg subcutaneous (SC) q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
Placebo SC q2wk for 12 weeks (Per protocol, placebo arms for Cohorts 1 and 2 were combined for analysis.)
Cohort 3 KPL-404 5 mg/kg Qwk
KPL-404 5 mg/kg SC once weekly (qwk) for 12 weeks
Cohort 3 KPL-404 5 mg/kg q2wk
KPL-404 5 mg/kg SC q2wk with alternating weekly administrations of KPL-404 or placebo SC for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC every 4 weeks (q4wk) for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Overall Study
STARTED
6
6
4
27
25
26
31
20
Overall Study
COMPLETED
6
5
4
25
25
24
30
17
Overall Study
NOT COMPLETED
0
1
0
2
0
2
1
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Cohort 1 KPL-404 2 mg/kg Every 2 Weeks (q2wk)
KPL-404 2 mg/kg subcutaneous (SC) q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
Placebo SC q2wk for 12 weeks (Per protocol, placebo arms for Cohorts 1 and 2 were combined for analysis.)
Cohort 3 KPL-404 5 mg/kg Qwk
KPL-404 5 mg/kg SC once weekly (qwk) for 12 weeks
Cohort 3 KPL-404 5 mg/kg q2wk
KPL-404 5 mg/kg SC q2wk with alternating weekly administrations of KPL-404 or placebo SC for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC every 4 weeks (q4wk) for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Overall Study
Lost to Follow-up
0
1
0
0
0
0
0
0
Overall Study
Withdrawal by Subject
0
0
0
2
0
2
1
3

Baseline Characteristics

Study to Assess the Safety, Pharmacokinetics, and Efficacy of KPL-404 in Participants With Rheumatoid Arthritis With Inadequate Response or Intolerance to at Least One Biologic Disease-modifying Anti-rheumatic Drug or a Janus Kinase Inhibitor

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=6 Participants
KPL-404 2 mg/kg SC q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=4 Participants
Placebo SC q2wk for 12 weeks
Cohort 3 KPL-404 5 mg/kg Qwk
n=27 Participants
KPL-404 5 mg/kg SC qwk for 12 weeks
Cohort 3 KPL-404 5 mg/kg q2wk
n=25 Participants
KPL-404 5 mg/kg SC q2wk with alternating weekly administrations of KPL-404 or placebo SC for 12 weeks
Cohort 3 Placebo
n=26 Participants
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=31 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=20 Participants
Placebo SC q4wk for 12 weeks
Total
n=145 Participants
Total of all reporting groups
Age, Continuous
56.8 years
STANDARD_DEVIATION 15.59 • n=99 Participants
56.3 years
STANDARD_DEVIATION 13.29 • n=107 Participants
59.8 years
STANDARD_DEVIATION 13.05 • n=206 Participants
58.5 years
STANDARD_DEVIATION 9.68 • n=7 Participants
60.0 years
STANDARD_DEVIATION 10.10 • n=31 Participants
57.6 years
STANDARD_DEVIATION 9.90 • n=30 Participants
58.8 years
STANDARD_DEVIATION 9.45 • n=3 Participants
58.3 years
STANDARD_DEVIATION 11.81 • n=6 Participants
58.5 years
STANDARD_DEVIATION 10.34 • n=114 Participants
Sex: Female, Male
Female
5 Participants
n=99 Participants
5 Participants
n=107 Participants
4 Participants
n=206 Participants
22 Participants
n=7 Participants
20 Participants
n=31 Participants
24 Participants
n=30 Participants
25 Participants
n=3 Participants
15 Participants
n=6 Participants
120 Participants
n=114 Participants
Sex: Female, Male
Male
1 Participants
n=99 Participants
1 Participants
n=107 Participants
0 Participants
n=206 Participants
5 Participants
n=7 Participants
5 Participants
n=31 Participants
2 Participants
n=30 Participants
6 Participants
n=3 Participants
5 Participants
n=6 Participants
25 Participants
n=114 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
4 Participants
n=107 Participants
2 Participants
n=206 Participants
2 Participants
n=7 Participants
3 Participants
n=31 Participants
6 Participants
n=30 Participants
5 Participants
n=3 Participants
1 Participants
n=6 Participants
24 Participants
n=114 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
n=99 Participants
2 Participants
n=107 Participants
2 Participants
n=206 Participants
25 Participants
n=7 Participants
22 Participants
n=31 Participants
20 Participants
n=30 Participants
26 Participants
n=3 Participants
19 Participants
n=6 Participants
121 Participants
n=114 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
0 Participants
n=6 Participants
0 Participants
n=114 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
0 Participants
n=6 Participants
0 Participants
n=114 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
1 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
2 Participants
n=3 Participants
2 Participants
n=6 Participants
5 Participants
n=114 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
0 Participants
n=6 Participants
0 Participants
n=114 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
1 Participants
n=7 Participants
2 Participants
n=31 Participants
2 Participants
n=30 Participants
3 Participants
n=3 Participants
1 Participants
n=6 Participants
10 Participants
n=114 Participants
Race (NIH/OMB)
White
5 Participants
n=99 Participants
6 Participants
n=107 Participants
4 Participants
n=206 Participants
25 Participants
n=7 Participants
23 Participants
n=31 Participants
24 Participants
n=30 Participants
26 Participants
n=3 Participants
17 Participants
n=6 Participants
130 Participants
n=114 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
0 Participants
n=6 Participants
0 Participants
n=114 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
0 Participants
n=6 Participants
0 Participants
n=114 Participants

PRIMARY outcome

Timeframe: From first dose of study drug to 24 weeks

Population: Safety Population: All randomized participants who received at least one dose of study drug.

Adverse event (AE): any untoward medical occurrence, which does not necessarily have a causal relationship with this treatment. Serious AE (SAE): AE that: results in death; is immediately life-threatening; requires in-patient hospitalization/prolongation of existing hospitalization; results in persistent or significant disability/incapacity; results in a congenital abnormality/birth defect; is an important medical event. TEAEs: AEs not present before exposure to study drug or any event already present that worsens in either intensity or frequency after exposure to study drug during treatment period. AE severity: mild (Grade \[Gr\] 1); moderate (Gr 2); severe (Gr 3); potentially life threatening (Gr 4); death (Gr 5). AEs of special interest: thrombosis, serious infection, serious and non-serious bacterial infections, eye disorders, and anaphylaxis/hypersensitivity reactions.

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=6 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=4 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
TEAEs by maximum severity
2 Participants
2 Participants
3 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Maximum Severity = Mild
1 Participants
1 Participants
1 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Maximum Severity = Moderate
1 Participants
1 Participants
2 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Maximum Severity = Severe
0 Participants
0 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Maximum Severity = Fatal
0 Participants
0 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Serious TEAEs
0 Participants
0 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Drug-related SAEs
0 Participants
0 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
TEAEs leading to death
0 Participants
0 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
TEAEs leading to dose interruption
1 Participants
1 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Maximum Severity = Potentially life threatening
0 Participants
0 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
TEAEs leading to treatment discontinuation
0 Participants
0 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
TEAEs of special interest
0 Participants
0 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Injection site reactions
0 Participants
1 Participants
0 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
TEAEs
2 Participants
2 Participants
3 Participants
Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Drug-related TEAEs
1 Participants
1 Participants
1 Participants

PRIMARY outcome

Timeframe: Days 1 (Dose 1) and 57 (Dose 4)

Population: Participants treated with KPL-404, with an evaluable PK sample at given time point.

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=5 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohorts 1 and 2: Maximum Serum Concentration (Cmax)
Day 1
7.57 µg/mL
Standard Deviation 7.52
28.0 µg/mL
Standard Deviation 13.5
Cohorts 1 and 2: Maximum Serum Concentration (Cmax)
Day 57
17.8 µg/mL
Standard Deviation 13.9
68.3 µg/mL
Standard Deviation 25.1

PRIMARY outcome

Timeframe: Days 1 (Dose 1) and 57 (Dose 4)

Population: Participants treated with KPL-404, with an evaluable PK sample at given time point.

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=5 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohorts 1 and 2: Area Under the Serum Concentration-time Curve From Time of Administration to the End of the Dosing Interval, (AUCtau)
Day 1
59.0 µg·day/mL
Standard Deviation 51.1
303 µg·day/mL
Standard Deviation 148
Cohorts 1 and 2: Area Under the Serum Concentration-time Curve From Time of Administration to the End of the Dosing Interval, (AUCtau)
Day 57
162 µg·day/mL
Standard Deviation 114
810 µg·day/mL
Standard Deviation 290

PRIMARY outcome

Timeframe: Baseline, Week 12

Population: Modified Intent-to-Treat (mITT) population: All randomized participants who received at least one dose of study drug and who had at least one post-baseline assessment for the primary efficacy endpoint.

DAS28 is a measure based on assessment of 28 joints for tenderness and swelling (tender and swollen joint counts). DAS28-CRP is derived using differential weighting given to 4 components: tender joint count (range: 0-28), swollen joint count (range: 0-28), patient global assessment (recorded on a visual analog scale \[VAS\] scale of 0-100 mm), and CRP (milligram per liter). DAS28-CRP score ranges from 0 to 9.4. The lower the DAS28-CRP score is, the better the participant has response (remission = score \< 2.6, low disease activity = score \< 3.2). A negative value in change from BL indicates an improvement.

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=27 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=25 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=26 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=31 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=20 Participants
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 and 4: Change From Baseline in Disease Activity Score of 28 Joints Using C-reactive Protein (DAS28-CRP) at Week 12
-2.17 score on a scale
Standard Error 0.216
-1.96 score on a scale
Standard Error 0.220
-1.61 score on a scale
Standard Error 0.218
-1.87 score on a scale
Standard Error 0.331
-1.30 score on a scale
Standard Error 0.338

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: mITT Population: All randomized participants who received at least one dose of study drug and who had at least one post-baseline assessment for the primary efficacy endpoint.

DAS28 is a measure based on assessment of 28 joints for tenderness and swelling (tender and swollen joint counts). DAS28-CRP is derived using differential weighting given to 4 components: tender joint count (range: 0-28), swollen joint count (range: 0-28), patient global assessment (recorded on a visual analog scale \[VAS\] scale of 0-100 mm), and CRP (milligram per liter). DAS28-CRP score ranges from 0 to 9.4. The lower the DAS28-CRP score is, the better the participant has response (remission = score \< 2.6, low disease activity = score \< 3.2). A negative value in change from BL indicates an improvement.

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=6 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=4 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohorts 1 and 2: Change From Baseline in DAS28-CRP at Week 12
-3.16 score on a scale
Standard Deviation 1.130
-3.44 score on a scale
Standard Deviation 1.450
-1.09 score on a scale
Standard Deviation 1.373

SECONDARY outcome

Timeframe: From first dose of study drug to 24 weeks

Population: Safety Population: All randomized participants who received at least one dose of study drug.

Adverse event (AE): any untoward medical occurrence, which does not necessarily have a causal relationship with this treatment. Serious AE (SAE): AE that: results in death; is immediately life-threatening; requires in-patient hospitalization/prolongation of existing hospitalization; results in persistent or significant disability/incapacity; results in a congenital abnormality/birth defect; is an important medical event. TEAEs: AEs not present before exposure to study drug or any event already present that worsens in either intensity or frequency after exposure to study drug during treatment period. AE severity: mild (Grade \[Gr\] 1); moderate (Gr 2); severe (Gr 3); potentially life threatening (Gr 4); death (Gr 5). AEs of special interest: thrombosis, serious infection, serious and non-serious bacterial infections, eye disorders, and anaphylaxis/hypersensitivity reactions.

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=27 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=25 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=26 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=31 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=20 Participants
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohorts 3 and 4: Number of Participants With TEAEs
TEAEs by maximum severity
12 Participants
6 Participants
8 Participants
9 Participants
8 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Maximum Severity = Potentially life threatening
0 Participants
0 Participants
0 Participants
0 Participants
0 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Injection site reactions
1 Participants
1 Participants
0 Participants
2 Participants
0 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
TEAEs
12 Participants
6 Participants
8 Participants
9 Participants
8 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Drug-related TEAEs
2 Participants
2 Participants
2 Participants
3 Participants
1 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Maximum Severity = Mild
8 Participants
3 Participants
4 Participants
4 Participants
5 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Maximum Severity = Moderate
4 Participants
3 Participants
4 Participants
5 Participants
3 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Maximum Severity = Severe
0 Participants
0 Participants
0 Participants
0 Participants
0 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Maximum Severity = Fatal
0 Participants
0 Participants
0 Participants
0 Participants
0 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Serious TEAEs
1 Participants
0 Participants
0 Participants
0 Participants
0 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
Drug-related SAEs
0 Participants
0 Participants
0 Participants
0 Participants
0 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
TEAEs leading to death
0 Participants
0 Participants
0 Participants
0 Participants
0 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
TEAEs leading to dose interruption
1 Participants
0 Participants
1 Participants
0 Participants
0 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
TEAEs leading to treatment discontinuation
0 Participants
0 Participants
0 Participants
1 Participants
1 Participants
Cohorts 3 and 4: Number of Participants With TEAEs
TEAEs of special interest
1 Participants
1 Participants
0 Participants
1 Participants
2 Participants

SECONDARY outcome

Timeframe: Days 1 (Dose 1) and 57 (Dose 4 or 8)

Population: Participants treated with KPL-404, with an evaluable PK sample at given time point.

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=27 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=25 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=30 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 and 4: Cmax
Day 1
27.1 µg/mL
Standard Deviation 11.0
29.4 µg/mL
Standard Deviation 10.3
48.5 µg/mL
Standard Deviation 18.2
Cohort 3 and 4: Cmax
Day 57
145 µg/mL
Standard Deviation 41.0
70.9 µg/mL
Standard Deviation 21.5
45.6 µg/mL
Standard Deviation 21.4

SECONDARY outcome

Timeframe: Days 1 (Dose 1) and 57 (Dose 4 or 8)

Population: Participants treated with KPL-404, with an evaluable PK sample at given time point.

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=27 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=25 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=30 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
Placebo SC q4wk for 12 weeks
Cohort 3 and 4: AUCtau
Day 1
139 µg·day/mL
Standard Deviation 63.4
310 µg·day/mL
Standard Deviation 105
873 µg·day/mL
Standard Deviation 363
Cohort 3 and 4: AUCtau
Day 57
975 µg·day/mL
Standard Deviation 291
849 µg·day/mL
Standard Deviation 267
843 µg·day/mL
Standard Deviation 466

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: mITT population: All randomized participants who received at least one dose of study drug and who had at least one post-baseline assessment for the primary efficacy endpoint.

An ACR20 response is defined as at least a 20% improvement in both tender joint count (TJC) and swollen joint count (SJC), and at least a 20% improvement in three of the following five criteria: patient global assessment (PGA), physician global assessment (PhGA), functional ability measure \[Health Assessment Questionnaire (HAQ)\], patient's assessment of pain (visual analog scale; VAS) and C-reactive protein (CRP).

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=6 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=4 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=27 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=25 Participants
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
n=26 Participants
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=31 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=20 Participants
Placebo SC q4wk for 12 weeks
Percentage of Participants Achieving American College of Rheumatology 20% (ACR20) Response at Week 12
100 percentage of participants
83.3 percentage of participants
25.0 percentage of participants
74.1 percentage of participants
60.0 percentage of participants
50.0 percentage of participants
80.6 percentage of participants
40.0 percentage of participants

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: mITT population: All randomized participants who received at least one dose of study drug and who had at least one post-baseline assessment for the primary efficacy endpoint.

An ACR50 response is defined as at least a 50% improvement in both tender joint count (TJC) and swollen joint count (SJC), and at least a 50% improvement in three of the following five criteria: patient global assessment (PGA), physician global assessment (PhGA), functional ability measure \[Health Assessment Questionnaire (HAQ)\], patient's assessment of pain (visual analog scale; VAS) and C-reactive protein (CRP).

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=6 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=4 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=27 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=25 Participants
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
n=26 Participants
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=31 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=20 Participants
Placebo SC q4wk for 12 weeks
Percentage of Participants Achieving American College of Rheumatology 50% (ACR50) Response at Week 12
66.7 percentage of participants
16.7 percentage of participants
0 percentage of participants
33.3 percentage of participants
36.0 percentage of participants
23.1 percentage of participants
32.3 percentage of participants
30.0 percentage of participants

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: mITT population: All randomized participants who received at least one dose of study drug and who had at least one post-baseline assessment for the primary efficacy endpoint.

An ACR70 response is defined as at least a 70% improvement in both tender joint count (TJC) and swollen joint count (SJC), and at least a 70% improvement in three of the following five criteria: patient global assessment (PGA), physician global assessment (PhGA), functional ability measure \[Health Assessment Questionnaire (HAQ)\], patient's assessment of pain (visual analog scale; VAS) and C-reactive protein (CRP).

Outcome measures

Outcome measures
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=6 Participants
KPL-404 2 mg/kg SC every 2 q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 Participants
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=4 Participants
Placebo SC q2wk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=27 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=25 Participants
Placebo SC q4wk for 12 weeks
Cohort 3 Placebo
n=26 Participants
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=31 Participants
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=20 Participants
Placebo SC q4wk for 12 weeks
Percentage of Participants Achieving American College of Rheumatology 70% (ACR70) Response at Week 12
33.3 percentage of participants
16.7 percentage of participants
0 percentage of participants
7.4 percentage of participants
20.0 percentage of participants
3.8 percentage of participants
9.7 percentage of participants
25.0 percentage of participants

Adverse Events

Cohort 1 KPL-404 2 mg/kg q2wk

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Cohort 2 KPL-404 5 mg/kg q2wk

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Cohort 1/2 Placebo

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Cohort 3 KPL-404 5 mg/kg Qwk

Serious events: 1 serious events
Other events: 10 other events
Deaths: 0 deaths

Cohort 3 KPL-404 5 mg/kg q2wk

Serious events: 0 serious events
Other events: 8 other events
Deaths: 0 deaths

Cohort 3 Placebo

Serious events: 1 serious events
Other events: 8 other events
Deaths: 0 deaths

Cohort 4 KPL-404 400 mg q4wk

Serious events: 0 serious events
Other events: 10 other events
Deaths: 0 deaths

Cohort 4 Placebo

Serious events: 0 serious events
Other events: 11 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=6 participants at risk
KPL-404 2 mg/kg SC q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 participants at risk
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=4 participants at risk
Placebo SC q2wk for 12 weeks
Cohort 3 KPL-404 5 mg/kg Qwk
n=27 participants at risk
KPL-404 5 mg/kg SC qwk for 12 weeks
Cohort 3 KPL-404 5 mg/kg q2wk
n=25 participants at risk
KPL-404 5 mg/kg SC q2wk with alternating weekly administrations of KPL-404 or placebo SC for 12 weeks
Cohort 3 Placebo
n=26 participants at risk
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=31 participants at risk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=20 participants at risk
Placebo SC q4wk for 12 weeks
Ear and labyrinth disorders
Sudden hearing loss
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
3.7%
1/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Metabolism and nutrition disorders
Hyponatraemia
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
3.8%
1/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks

Other adverse events

Other adverse events
Measure
Cohort 1 KPL-404 2 mg/kg q2wk
n=6 participants at risk
KPL-404 2 mg/kg SC q2wk for 12 weeks
Cohort 2 KPL-404 5 mg/kg q2wk
n=6 participants at risk
KPL-404 5 mg/kg SC q2wk for 12 weeks
Cohort 1/2 Placebo
n=4 participants at risk
Placebo SC q2wk for 12 weeks
Cohort 3 KPL-404 5 mg/kg Qwk
n=27 participants at risk
KPL-404 5 mg/kg SC qwk for 12 weeks
Cohort 3 KPL-404 5 mg/kg q2wk
n=25 participants at risk
KPL-404 5 mg/kg SC q2wk with alternating weekly administrations of KPL-404 or placebo SC for 12 weeks
Cohort 3 Placebo
n=26 participants at risk
Placebo SC qwk for 12 weeks
Cohort 4 KPL-404 400 mg q4wk
n=31 participants at risk
KPL-404 SC q4wk for 12 weeks: 600 mg loading dose at baseline followed by 400 mg at Weeks 4 and 8
Cohort 4 Placebo
n=20 participants at risk
Placebo SC q4wk for 12 weeks
Investigations
Fibrin D dimer increased
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
3.8%
1/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Vascular disorders
Hypertension
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
7.4%
2/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
3.8%
1/26 • Up to 28 weeks
3.2%
1/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Nervous system disorders
Headache
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
25.0%
1/4 • Up to 28 weeks
3.7%
1/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
7.7%
2/26 • Up to 28 weeks
3.2%
1/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
General disorders
Fatigue
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
25.0%
1/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
General disorders
Injection site erythema
0.00%
0/6 • Up to 28 weeks
16.7%
1/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
General disorders
Injection site pain
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
8.0%
2/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
3.2%
1/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Gastrointestinal disorders
Diarrhoea
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
7.4%
2/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
3.2%
1/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Reproductive system and breast disorders
Prostatitis
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
16.7%
1/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Respiratory, thoracic and mediastinal disorders
Dyspnoea
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Respiratory, thoracic and mediastinal disorders
Interstitial lung disease
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
25.0%
1/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Musculoskeletal and connective tissue disorders
Arthralgia
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
25.0%
1/4 • Up to 28 weeks
3.7%
1/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Musculoskeletal and connective tissue disorders
Arthritis
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Musculoskeletal and connective tissue disorders
Pain in extremity
16.7%
1/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Infections and infestations
COVID-19
16.7%
1/6 • Up to 28 weeks
16.7%
1/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
3.7%
1/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
3.8%
1/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Infections and infestations
Campylobacter infection
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Infections and infestations
Gastroenteritis
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
4.0%
1/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Infections and infestations
Nasopharyngitis
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
8.0%
2/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
6.5%
2/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Infections and infestations
Sinusitis
0.00%
0/6 • Up to 28 weeks
16.7%
1/6 • Up to 28 weeks
50.0%
2/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Infections and infestations
Urinary tract infection
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
4.0%
1/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
6.5%
2/31 • Up to 28 weeks
10.0%
2/20 • Up to 28 weeks
Metabolism and nutrition disorders
Hypercholesterolaemia
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
3.7%
1/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
3.2%
1/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Metabolism and nutrition disorders
Hyperuricaemia
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Injury, poisoning and procedural complications
Animal scratch
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
25.0%
1/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Nervous system disorders
Sinus headache
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
25.0%
1/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Infections and infestations
Bronchitis
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
3.7%
1/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Infections and infestations
Rhinitis
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks
Infections and infestations
Upper respiratory infection
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
25.0%
1/4 • Up to 28 weeks
14.8%
4/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
7.7%
2/26 • Up to 28 weeks
6.5%
2/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Gastrointestinal disorders
Abdominal discomfort
0.00%
0/6 • Up to 28 weeks
16.7%
1/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
0.00%
0/25 • Up to 28 weeks
0.00%
0/26 • Up to 28 weeks
0.00%
0/31 • Up to 28 weeks
0.00%
0/20 • Up to 28 weeks
Musculoskeletal and connective tissue disorders
Rheumatoid arthritis
0.00%
0/6 • Up to 28 weeks
0.00%
0/6 • Up to 28 weeks
0.00%
0/4 • Up to 28 weeks
0.00%
0/27 • Up to 28 weeks
8.0%
2/25 • Up to 28 weeks
3.8%
1/26 • Up to 28 weeks
6.5%
2/31 • Up to 28 weeks
5.0%
1/20 • Up to 28 weeks

Additional Information

Clinical Operations Study Director

Kiniksa Pharmaceuticals, Ltd.

Phone: 1-781-431-9100

Results disclosure agreements

  • Principal investigator is a sponsor employee Investigator shall not publish before a first multi-center publication by Sponsor. Before submission, Sponsor has 60 days to review any manuscript and 30 days to review any poster, abstract or any other materials. If Sponsor requests in writing, Investigator shall withhold disclosure for an additional 90 days.
  • Publication restrictions are in place

Restriction type: OTHER