Prevention of Acute Kidney Injury in Patients With NSTEMI (AKI)
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ClinicalTrials.gov Identifier: NCT04912141 |
Recruitment Status :
Recruiting
First Posted : June 3, 2021
Last Update Posted : June 3, 2021
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Non-ST Elevation Myocardial Infarction (NSTEMI) | Drug: conestat alfa or placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 220 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Randomized, double-blind, placebo-controlled, multicenter, phase 2, dose-finding. |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Prevention |
Official Title: | Conestat Alfa (a Recombinant Human C1 Esterase Inhibitor) for the Prevention of Acute Kidney Injury After Non-ST Elevation Myocardial Infarction: a Randomized, Double-blind, Placebo-controlled, Multicenter, Phase 2, Dose-finding Study |
Actual Study Start Date : | April 21, 2021 |
Estimated Primary Completion Date : | December 2022 |
Estimated Study Completion Date : | December 2023 |

Arm | Intervention/treatment |
---|---|
Placebo Comparator: Conestat alfa 50 U/kg - Placebo
50 U/kg conestat alfa pre-angiography and placebo 3 hours after the first dose
|
Drug: conestat alfa or placebo
Conestat alfa will be dosed by body weight at 50 U/kg (maximum 4200 U) or 100 U/kg (maximum 8400 U). Placebo will consist of normal saline (NaCl 0.9%). The interventions will be given to the patients by IV-line. Other Name: Ruconest |
Active Comparator: Conestat alfa 50 U/kg - Conestat alfa 50 U/kg
50 U/kg conestat alfa pre-angiography and 3 hours after the first dose
|
Drug: conestat alfa or placebo
Conestat alfa will be dosed by body weight at 50 U/kg (maximum 4200 U) or 100 U/kg (maximum 8400 U). Placebo will consist of normal saline (NaCl 0.9%). The interventions will be given to the patients by IV-line. Other Name: Ruconest |
Active Comparator: Conestat alfa 100 U/kg - Conestat alfa 50 U/kg
100 U/kg conestat alfa pre-angiography and 50 U/kg conestat alfa 3 hours after the first dose
|
Drug: conestat alfa or placebo
Conestat alfa will be dosed by body weight at 50 U/kg (maximum 4200 U) or 100 U/kg (maximum 8400 U). Placebo will consist of normal saline (NaCl 0.9%). The interventions will be given to the patients by IV-line. Other Name: Ruconest |
Placebo Comparator: Placebo - Placebo
Placebo pre-angiography and 3 hours after the first dose
|
Drug: conestat alfa or placebo
Conestat alfa will be dosed by body weight at 50 U/kg (maximum 4200 U) or 100 U/kg (maximum 8400 U). Placebo will consist of normal saline (NaCl 0.9%). The interventions will be given to the patients by IV-line. Other Name: Ruconest |
- Urinary NGAL [ Time Frame: 24 hours after PCI ]Evaluation of the peak change of urinary NGAL, an established biomarker of AKI, within 24 hours after PCI
- Urinary NGAL [ Time Frame: within 24 hours after angiography ]The peak change of urinary NGAL within 24 hours after angiography for the total group including PCI and non-PCI patients
- Serum creatinine [ Time Frame: within 72 hours after angiography ]The incidence of acute kidney injury (AKI) as defined by a serum creatinine change of ≥26.5 µmol/L or a serum creatinine change of ≥1.5 times baseline within 72 hours after angiography.
- Serum cystatin C [ Time Frame: 24 hours after angiography ]The incidence of a serum cystatin C change of ≥10% 24 hours after angiography.
- Troponin T [ Time Frame: within 72 hours after angiography ]The change of troponin T within 72 hours (area under the curve, AUC0-72) after angiography
- Troponin T [ Time Frame: measured once at 72 hours after angiography ]The peak change of troponin
- Creatine kinase [ Time Frame: measured once at 72 hours after angiography ]The peak change of creatine kinase
- N-terminal pro-brain natriuretic peptide [ Time Frame: at 72 hours after angiography ]N-terminal pro-brain natriuretic peptide (NT-proBNP) measured once at 72 hours after angiography

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Ages Eligible for Study: | 18 Years to 85 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Informed Consent as documented by a signature and date of the patient
- Age 18-85 years
- Acute NSTEMI as anticipated to be type 1 (expert opinion by the cardiologist before coronary angiography) and scheduled for urgent coronary angiography
- Documented kidney disease existing for ≥3 months OR Two estimated glomerular filtration rate (eGFR) measurements of <60ml/min/1.73m2 as calculated by the CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) study equation and at least 6 hours apart OR eGFR of <50 mL/min//1.73m2 as calculated by using the CKD-EPI study equation at presentation
- At least one of the following risk factors for AKI: diabetes mellitus, age >60 years, established cardiovascular disease, heart failure with reduced ejection fraction, anemia
Exclusion Criteria:
- Contraindications to the class of drugs under study (C1 esterase inhibitors), e.g. known hypersensitivity or allergy to class of drugs or the IMP
- History or suspicion of allergy to rabbits
- Women who are pregnant or breast feeding
- ST elevation myocardial infarction or unstable angina
- Cardiogenic shock requiring mechanical support
- Non-cardiac comorbidity with expected survival <6 months
- Acute urinary tract infection (e.g. cystitis, pyelonephritis).
- Liver cirrhosis (any Child-Pugh score)
- Dialysis or eGFR <20 and >59mL/min/1.73 m2 at baseline (d0)
- Incapacity or inability to provide informed consent
- Participation in another study with investigational drug within 30 days preceding, and during the present study
- Previous enrolment into the current study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04912141
Contact: Jurgen Schaale, MD | +31715247400 | j.schaale@pharming.com |
Switzerland | |
University Hospital Basel | Recruiting |
Basel, Switzerland, 4031 | |
Contact: Michael Osthoff, MD | |
Inselspital Bern | Recruiting |
Bern, Switzerland, 3010 | |
Contact: Lorenz Raber, MD | |
University Hospital Geneva | Recruiting |
Geneva, Switzerland, 1205 | |
Contact: Juan Fernando Iglesias, MD | |
Fondazione Istituto Cardiocentro Ticino | Recruiting |
Lugano, Switzerland, 6900 | |
Contact: Marco Moccetti, MD |
Study Director: | Anurag Relan, MD | Pharming Technologies BV |
Responsible Party: | Pharming Technologies B.V. |
ClinicalTrials.gov Identifier: | NCT04912141 |
Other Study ID Numbers: |
C1 5201 |
First Posted: | June 3, 2021 Key Record Dates |
Last Update Posted: | June 3, 2021 |
Last Verified: | May 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Acute Kidney Injury Renal Insufficiency Kidney Diseases Myocardial Infarction Non-ST Elevated Myocardial Infarction Infarction Ischemia Pathologic Processes Necrosis Myocardial Ischemia |
Heart Diseases Cardiovascular Diseases Vascular Diseases Urologic Diseases Complement C1 Inhibitor Protein Complement Inactivating Agents Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs |