Phase 2/3 Study of KPL-387 in Recurrent Pericarditis
A Phase 2/3 Efficacy and Safety Study of KPL-387 Treatment in Participants With Recurrent Pericarditis
2 other identifiers
interventional
165
10 countries
52
Brief Summary
This study is being done to demonstrate whether KPL-387 is an effective and safe treatment for recurrent pericarditis.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jul 2025
Typical duration for phase_2
52 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 29, 2025
CompletedFirst Posted
Study publicly available on registry
June 8, 2025
CompletedStudy Start
First participant enrolled
July 25, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2029
May 4, 2026
October 1, 2025
2.4 years
May 29, 2025
May 1, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Phase 2: Time to Treatment Response by Week 24
From Randomization up to Week 24
Phase 3: Time to Pericarditis Recurrence
From first administration of study drug in the RW Period
Long-Term Extension: Annualized rate of Pericarditis Recurrence
Up to 24 Months
Secondary Outcomes (30)
Phase 2: Time to CRP Normalization (CRP ≤ 0.5 mg/dL) by Week 24
From Randomization up to Week 24
Phase 2: Time to Pain Response by Week 24
From Randomization up to Week 24
Phase 2: Percentage of Days With No or Minimal Pain (Numerical Rating Scale (NRS) ≤ 2) While on KPL-387 Treatment Over Time by Week 24
From Randomization up to Week 24
Phase 2: Proportion of Participants With Normalization of CRP (CRP ≤ 0.5 mg/dL) Over Time by Week 24
From Randomization up to Week 24
Phase 2: Time to resolution of pericarditis manifestations (i.e. echocardiogram [ECHO] abnormalities, electrocardiogram [ECG] abnormalities, and pericardial rub), when present at Baseline, by Week 16.
From Randomization up to Week 16
- +25 more secondary outcomes
Study Arms (7)
Phase 2 KPL-387 100mg SC q2wk
EXPERIMENTALIn Phase 2 Treatment Period KPL-387 will be administered by subcutaneous (SC) injection every 2 weeks (q2wk) through Week 22.
Phase 2 KPL-387 100mg SC q4wk
EXPERIMENTALIn Phase 2 Treatment Period, KPL-387 or placebo (alternating every 2 weeks) will be administered by SC injection q2wk through Week 22 to provide active drug administration every 4 weeks (q4wk) while maintaining treatment concealment.
Phase 2 KPL-387 300mg SC q2wk
EXPERIMENTALIn Phase 2 Treatment Period KPL-387 will be administered by SC injection q2wk through Week 22.
Phase 2 KPL-387 300mg SC q4wk
EXPERIMENTALIn Phase 2 Treatment Period, KPL-387 or placebo (alternating every 2 weeks) will be administered by SC injection q2wk through Week 22 to provide active drug administration q4wk while maintaining treatment concealment.
Phase 3 KPL-387 SC
EXPERIMENTALRun-In (RI) Period: participants receive single-blind KPL-387 Randomized Withdrawal (RW) Period: eligible participants are randomized (1:1 KPL-387 or placebo) to receive double-blinded KPL-387.
Phase 3 Placebo SC
PLACEBO COMPARATORRW Period: eligible participants are randomized (1:1 KPL-387 or placebo) to receive double-blinded placebo.
Long-Term Extension
EXPERIMENTALParticipants from Phase 2 and Phase 3 who continue into the Long-Term Extension will receive KPL-387.
Interventions
administered by subcutaneous injection
administered by subcutaneous injection
Eligibility Criteria
You may qualify if:
- Phase 2 and 3: Has a diagnosis of recurrent pericarditis
- Phase 2 and 3: Has signs and symptoms of recurrent pericarditis despite treatment with standard therapies
- Phase 2 and 3: Weighs at least 40 kg
- Phase 2: Taking NSAIDS and/or colchicine (in any combination)
- Phase 3: Taking NSAIDs and/or colchicine and/or glucocorticoids (in any combination)
You may not qualify if:
- Phase 2 and 3: Has a diagnosis of pericarditis that is secondary to specific prohibited etiologies.
- Phase 2 and 3: Has received an investigational drug during the 4 weeks before screening or is planning to receive an investigational drug at any time during the study.
- Phase 2 and 3: Has a history of active or untreated, latent tuberculosis (TB) prior to screening.
- Phase 2 and 3: Has a history of immunodeficiency.
- Phase 2 and 3: Has a history of immunosuppression, including positive human immunodeficiency virus (HIV) test results.
- Phase 2 and 3: Has chest x-ray at Screening or within 12 weeks before first study drug administration, with evidence of malignancy, abnormality consistent with prior or active TB infection or active infection.
- Phase 2 and 3: Has a history of malignancy of any organ system within the past 5 years before Screening (other than a successfully treated non metastatic cutaneous squamous cell carcinoma or basal cell carcinoma and/or localized carcinoma in situ of the cervix).
- Phase 2 and 3: Has a known or suspected current active infection or a history of chronic or recurrent infectious disease (\> 3 episodes in prior 12 months), including but not limited to, genitourinary infection, chest infection, sinusitis, or skin/soft tissue infection.
- Phase 2 and 3: Has had a serious infection, has been admitted to the hospital for an infection, or has been treated for a documented infection requiring antibiotics for a documented infection within 2 weeks prior to first study drug administration.
- Phase 2 and 3: Has had an organ transplant (except corneal transplant performed more than 3 months prior to first study drug administration).
- Phase 2 and 3: In the Investigator's opinion, has any other medical condition that could adversely affect the subject's participation or interfere with study evaluations.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (52)
Investigational Site 018
Gilbert, Arizona, 85297, United States
Investigational Site 030
Los Angeles, California, 90048, United States
Investigational Site 008
San Francisco, California, 94158, United States
Investigational Site 044
Santa Monica, California, 90404, United States
Investigational Site 016
Westminster, Colorado, 80023, United States
Investigational Site 001
Columbus, Georgia, 31904, United States
Investigational Site 004
Chicago, Illinois, 60611, United States
Investigational Site 014
Indianapolis, Indiana, 46184, United States
Investigational Site 002
Overland Park, Kansas, 66221, United States
Investigational Site 043
Baltimore, Maryland, 21287, United States
Investigational Site 012
Rochester, Minnesota, 55905, United States
Investigational Site 050
Kansas City, Missouri, 64111, United States
Investigational Site 046
Kansas City, Missouri, 66160, United States
Investigational Site 015
New York, New York, 10016, United States
Investigational Site 022
New York, New York, 10032, United States
Investigational Site 009
Cincinnati, Ohio, 45219, United States
Investigational Site 003
Cleveland, Ohio, 44195, United States
Investigational Site 005
Austin, Texas, 78705, United States
Investigational Site 013
Houston, Texas, 77030, United States
Investigational Site 042
Burlington, Vermont, 05401, United States
Investigational Site 006
Charlottesville, Virginia, 22903, United States
Investigational Site 023
Norfolk, Virginia, 23507, United States
Investigational Site 045
Richmond, Virginia, 23284, United States
Investigational Site 027
Ottawa, Ontario, K1N 6N5, Canada
Investigational Site 028
Montpellier, 34090, France
Investigational Site 021
Paris, 75013, France
Investigational Site 036
Pessac, 33600, France
Investigational Site 019
Poitiers, 86000, France
Investigational Site 037
Toulouse, 31400, France
Investigational Site 038
Toulouse, 31400, France
Investigational Site 052
Dresden, 01069, Germany
Investigational Site 034
Athens, 115 28, Greece
Investigational Site 039
Nea Ionia, 142 33, Greece
Investigational Site 032
Voula, 166 73, Greece
Investigational Site 029
Genoa, 16132, Italy
Investigational Site 040
Genoa, 16147, Italy
Investigational Site 007
Milan, 20157, Italy
Investigational Site 051
Padua, 35143, Italy
Investigational Site 033
Udine, 33100, Italy
Investigational Site 041
Varese, 21100, Italy
Investigational Site 051
Warsaw, 02-097, Poland
Investigational Site 031
Warsaw, 02-507, Poland
Investigational Site 025
Belgrade, 11000, Serbia
Investigational Site 026
Belgrade, 11040, Serbia
Investigational Site 048
Barcelona, 08017, Spain
Investigational Site 010
Barcelona, 8035, Spain
Investigational Site 024
Madrid, 28850, Spain
Investigational Site 011
Murcia, 30120, Spain
Investigational Site 020
London, EC1A 7BE, United Kingdom
Investigational Site 047
London, NW3 2QG, United Kingdom
Investigational Site 035
London, SE1 7EH, United Kingdom
Investigational Site 017
Southampton, SO17 1BJ, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 29, 2025
First Posted
June 8, 2025
Study Start
July 25, 2025
Primary Completion (Estimated)
December 31, 2027
Study Completion (Estimated)
December 31, 2029
Last Updated
May 4, 2026
Record last verified: 2025-10
Data Sharing
- IPD Sharing
- Will not share