Not yet recruiting

Brief Summary

This study is being done to demonstrate whether KPL-387 is an effective and safe treatment for recurrent pericarditis.

Detailed Description

This clinical trial is comprised of 3 separate study parts: Phase 2, Phase 3, and Long-Term Extension. The primary objective of Phase 2 is to evaluate how well different dose regimens of KPL-387 control the pain and inflammation of pericarditis in a group of participants experiencing an acute episode of recurrent pericarditis. This part of the study will confirm the KPL-387 dose regimen to be further tested in Phase 3 and the Long-Term Extension. The primary objective of Phase 3 is to confirm the efficacy of KPL-387 for the treatment of recurrent pericarditis and reduction in risk of recurrence in an additional group of participants experiencing an acute episode of recurrent pericarditis. Participants who complete Phase 2 or Phase 3 may be eligible to participate in the Long-Term Extension. The primary objective of the Long-Term Extension is to assess the long-term efficacy of KPL-387 while maintaining long-term disease control. All of the study parts also have other objectives to learn about the safety, tolerability, concentration of KPL-387 in blood, and effects of KPL-387 on blood test markers of immune activity in recurrent pericarditis.

Brief Summary

To assess potential link between unrecognized myocardial inflammation (myocarditis) and premature ventricular contractions (PVCs) associated with and without reduced Left ventricular ejection fraction (LVEF) through comprehensive diagnostic work up.

Detailed Description

Hypothesized that occult inflammation is clinically under-recognized in patients with symptomatic PVCs with and without Left ventricular (LV) dysfunction and can be a potential link between the 2 conditions. Aimed to evaluate the incidence of underlying inflammation using the Positron emission tomography (PET) scan in patients presenting with symptomatic PVCs enrolled retrospectively in the MAVERIC registry.

Brief Summary

The goal is to assess for myocardial edema on cardiac MRI during SLE flare to assess for myocardial inflammation.

Detailed Description

The over-arching goal of this work is to further the understanding of myocardial damage in systemic lupus erythematosus (SLE) using state of the art CV imaging to investigate a novel potential mechanism of CV injury in SLE, subclinical myocardial inflammation.

Aim 1: Investigate an alternative pathway for CV morbidity in SLE by measuring myocardial edema at time of moderate to severe flare and compare values to post-flare studies and historical healthy controls.

Hypothesis 1: Myocardial edema, measured quantitatively with T2 CMR mapping during moderate to severe SLE flare will be significantly increased compared to 1) historical controls and 2) in SLE patients after resolution of flare.

Aim 2: Perform exploratory analyses investigating relationships between myocardial edema on CMR and markers of SLE disease activity and CV risk factors.

Hypothesis 2: Markers of disease activity including inflammatory makers (ESR and high sensitivity c-reactive protein), complement and autoantibody levels will predict the presence of T2 CMR detected myocardial edema during flare.

Brief Summary

A retrospective, observational study consisting of patients who presents with typical/atypical chest pain and have an ensuing negative ischemic evaluation

Detailed Description

Multicenter, retrospective, observational study consisting of patients who presents with typical/atypical chest pain to the emergency department and have an ensuing negative ischemic evaluation. Planned to review the subsequent diagnostic process in these patients, including patients with CMRI (Cardiac Magnetic Resonance Imaging), PET (Positron Emission Tomography) imaging for evaluation of myocarditis with the goal of quantifying the number of patients who go on to have a proven diagnosis of myocarditis that can explain their presenting symptoms.

Inclusion Criteria:

• Participants with a diagnosis of myocarditis between December 18, 2020, and October 31, 2026, will be identified or who have a relevant combination of laboratory and clinical findings meeting the CDC case definition for probable or confirmed myocarditis will be included in the study.
• Participants will be required to have at least 30 days of medical history to assess SPIKEVAX exposure.

Study Population

The source population for this study will include participants with a diagnosis of myocarditis or a relevant combination of laboratory and clinical findings meeting the Centers for Disease Control and Prevention (CDC) case definition for probable or confirmed myocarditis occurring during the study window for case ascertainment.