Prevention of Severe SARS-CoV-2 Infection in Hospitalized Patients With COVID-19
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ClinicalTrials.gov Identifier: NCT04530136 |
Recruitment Status :
Completed
First Posted : August 28, 2020
Last Update Posted : June 3, 2022
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Condition or disease | Intervention/treatment | Phase |
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Confirmed Coronavirus Disease | Drug: Ruconest | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 38 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Single (Investigator) |
Primary Purpose: | Treatment |
Official Title: | Recombinant Human C1 Esterase Inhibitor (Ruconest®) in the Prevention of Severe SARS-CoV-2 Infection in Hospitalized Patients With COVID-19: a Randomized, Parallel-group, Open-label, Multi-center Pilot Trial in the United States (PROTECT-COVID-19-US) |
Actual Study Start Date : | November 30, 2020 |
Actual Primary Completion Date : | September 7, 2021 |
Actual Study Completion Date : | December 1, 2021 |

Arm | Intervention/treatment |
---|---|
Experimental: Ruconest
Patients receive (150 U/ml) of Ruconest at a 50 U/kg dose (max dose of 4200 U) as a slow intravenous injection via a peripheral every 12 hours; for 4 days. A total of 8 doses will be administered.
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Drug: Ruconest
Patients will be randomized to Ruconest or Standard of Care
Other Name: SOC |
Standard of Care
SOC
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Drug: Ruconest
Patients will be randomized to Ruconest or Standard of Care
Other Name: SOC |
- Disease Severity on the 7-Point WHO Ordinal Scale [ Time Frame: Assessed on each day after enrollment (worst status) with the use of the WHO Ordinal Scale and the score on day 7 will be analyzed stratified by its baseline value ]The primary endpoint will be the disease severity on the 7-point WHO Ordinal Scale on day 7. This endpoint has been suggested by WHO for clinical trials in patients with COVID-19
- Clinical improvement [ Time Frame: Daily until day 14 ]at least 2 points Ordinal Scale for Clinical Improvement, clinical severity will be assessed.
- Invasive or non-invasive ventilation [ Time Frame: Daily until day 14. ]Admission to ICU with invasive or non-invasive ventilation or death will be assessed.
- Acute Lung Injury [ Time Frame: Daily until day 14. ]Patients with ALI within 14 days after enrollment, PaO2/FiO2 will be determined daily. This is only relevant for patients with arterial blood gas sampling performed in the ICU or rarely in the medical unit.

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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:
- Age 18-85 years,
- Admitted to the hospital because of confirmed positive SARS-CoV-2 (COVID-19 infection).
- Evidence of pulmonary involvement on CT scan or X-Ray of the chest,
- Symptom onset within the previous 10 days AND at least one additional risk factor for progression to mechanical ventilation: 1) arterial hypertension, 2) >50 years, 3) obesity (BMI>30.0 kg/m2), 4) history of cardiovascular disease, 5) chronic pulmonary disease, 7) chronic renal disease, 6) C-reactive protein of >35mg/L, 7) oxygen saturation at rest in ambient air of <94%
Exclusion Criteria:
- Contraindications to the class of drugs under study (C1 esterase inhibitor);
- History or suspicion of allergy to rabbits;
- Women who are of childbearing potential and not using methods of contraception during the entire study period;
- Pregnant or breastfeeding females or has a positive serum β-human chorionic gonadotropin (hCG) pregnancy test at screening;
- Chronic liver disease (any Child-Pugh score B or C);
- Currently admitted to an ICU or expected admission within the next 24 hours; and
- Currently receiving invasive or non-invasive ventilation

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): NCT04530136
United States, New Jersey | |
The Valley Hospital | |
Ridgewood, New Jersey, United States, 07450 |
Principal Investigator: | Jonathan Bernstein, MD | University of Cincinnati |
Responsible Party: | Pharming Technologies B.V. |
ClinicalTrials.gov Identifier: | NCT04530136 |
Other Study ID Numbers: |
C1 6201 |
First Posted: | August 28, 2020 Key Record Dates |
Last Update Posted: | June 3, 2022 |
Last Verified: | June 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
COVID-19 Complement C1 Inhibitor Protein Infections Pneumonia, Viral Pneumonia Respiratory Tract Infections Virus Diseases Coronavirus Infections Coronaviridae Infections |
Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases Complement Inactivating Agents Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs |