Study to Evaluate the Safety and Efficacy of High Dose Intravenous Immune Globulin (IVIG) Plus Standard Medical Treatment (SMT) Versus SMT Alone in Participants in Intensive Care Unit (ICU) With Coronavirus Disease (COVID-19)
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ClinicalTrials.gov Identifier: NCT04480424 |
Recruitment Status :
Completed
First Posted : July 21, 2020
Last Update Posted : November 11, 2021
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Condition or disease | Intervention/treatment | Phase |
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COVID-19 | Biological: GAMUNEX-C Drug: Standard Medical Treatment | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 100 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Multicenter, Randomized, Open-label Parallel Group Pilot Study to Evaluate Safety and Efficacy of High Dose Intravenous Immune Globulin (IVIG) Plus Standard Medical Treatment (SMT) Versus SMT Alone in Subjects With COVID-19 Requiring Admission to the Intensive Care Unit |
Actual Study Start Date : | September 17, 2020 |
Actual Primary Completion Date : | August 19, 2021 |
Actual Study Completion Date : | October 25, 2021 |

Arm | Intervention/treatment |
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Experimental: GAMUNEX-C + Standard Medical Treatment
Participants will receive the first intravenous (IV) infusion of GAMUNEX-C on Day 1 up to a total net dose of 2 grams per kilogram (g/kg), based on participant's body weight (maximum dose = 160 g for participants over 80 kg), administered in divided doses as infusions of 500 milligrams per kilogram (mg/kg), based upon participant's body weight, over 4 days or 400 mg/kg, based upon participant's body weight, over 5 days. Participants will also receive all standard of care interventions while hospitalized, from Day 1 to Day 29.
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Biological: GAMUNEX-C
Intravenous Immune Globulin (Human), 10% Caprylate/Chromatography Purified
Other Name: IGIV-C Drug: Standard Medical Treatment SMT |
Active Comparator: Standard Medical Treatment
Participants will receive all standard of care interventions required throughout the participant's hospitalization, from Day 1 to Day 29.
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Drug: Standard Medical Treatment
SMT |
- All-Cause Mortality Rate Through Day 29 [ Time Frame: Up to Day 29 ]
- Time to Actual ICU Discharge [ Time Frame: Day 1 through Day 29 ]
- Duration of Mechanical Ventilation [ Time Frame: Day 1 through Day 29 ]
- Time to Actual Hospital Discharge [ Time Frame: Day 1 through Day 29 ]
- Duration of Any Oxygen Use [ Time Frame: Day 1 through Day 29 ]
- Mean Change from Baseline in Ordinal Scale [ Time Frame: Day 1 through Day 29 ]
- Absolute Value Change from Baseline in Ordinal Scale [ Time Frame: Day 1 through Day 29 ]
- Percentage of Participants in Each Severity Category of the 7-Point Ordinal Scale [ Time Frame: Day 15, Day 29 ]
- Overall Number of Participants who Develop Acute Respiratory Distress Syndrome (ARDS) [ Time Frame: Up to Day 29 ]
- Number of Participants who Develop ARDS Distributed by Severity [ Time Frame: Up to Day 29 ]
- Change from Baseline in Sequential Organ Failure Assessment (SOFA) Score [ Time Frame: Days 5, 15, and 29 ]
- Change from Baseline in National Early Warning Score (NEWS) [ Time Frame: Day 1 through Day 29 ]
- Time to Clinical Response as Assessed by: NEWS ≤ 2 Maintained for 24 hours [ Time Frame: Day 1 through Day 29 ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Hospitalized male or female subjects of ≥ 18 years of age at time of Screening who are being treated in the ICU for COVID-19 for not longer than 48 hours or for whom a decision has been made that COVID-19 disease severity warrants ICU admission.
- Has laboratory-confirmed novel coronavirus {SARS-CoV-2} infection as determined by qualitative polymerase chain reaction (PCR) (reverse transcriptase [RT]-PCR), or other United States Food and Drug Administration (FDA)-approved diagnostic assay for COVID-19 in any specimen during the current hospital admission prior to randomization.
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Illness (symptoms of COVID-19 of any duration requiring ICU level care), and the following:
- Radiographic infiltrates by imaging (chest X-Ray, computerized tomography (CT) scan, etc.), and
- Requiring mechanical ventilation and/or supplemental oxygen.
- Any one of the following related to COVID-19: i. Ferritin > 400 nanogram per milliliter (ng/mL), ii. Lactate dehydrogenase (LDH) > 300 units per liter (U/L), iii. D-Dimers > reference range, or iv. C-reactive protein (CRP) > 40 milligram per liter (mg/L).
- Subject provides informed consent prior to initiation of any study procedures.
Exclusion Criteria:
- Clinical evidence of any significant acute or chronic disease or pathophysiologic manifestations (eg, complications of COVID-19 standard medical treatments) that, in the opinion of the investigator, may place the subject at undue medical risk.
- The subject has had a known (documented) serious anaphylactic reaction to blood, any blood-derived or plasma product or a past history of any hypersensitivity reactions to commercial immunoglobulin.
- A medical condition in which the infusion of additional fluid is contraindicated.
- Shock that is unresponsive to fluid challenge and/or multiple vasopressors and accompanied by multiorgan failure considered by the Principal Investigator not able to be reversed.
- Subjects with known (documented) thrombotic complications to polyclonal IVIG therapy in the past.
- Subjects with current or prior myocardial infarction, stroke, deep vein thrombosis, or thromboembolic event (within the past 12 months) or who have a history of thromboembolic events of unknown etiology.
- Subjects with limitations of therapeutic effort.
- Female subjects who are pregnant or of child-bearing potential with a positive test for pregnancy blood or urine human chorionic gonadotropin (HCG)-based assay at Screening/Baseline.
- Subjects participating in another interventional clinical trial with investigational medical product or device.
- Known history of prothrombin gene mutation 20210, homozygous Factor V Leiden mutations, antithrombin III deficiency, protein C deficiency, protein S deficiency or antiphospholipid syndrome.
- Presence of malignancy (either new diagnosis of malignancy or known residual disease) within the past 12 months.
- Creatinine at Screening is ≥ 4 mg/dL (or subject is dependent on dialysis/renal replacement therapy).
- Known Immunoglobulin A (IgA) deficiency with anti-IgA serum antibodies.
- Uncontrolled hypertension at the time of Screening (systolic blood pressure > 200 mm Hg) or refractory severe hypotension with sustained systolic blood pressure < 90 mm Hg unresponsive to vasopressors.

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): NCT04480424

Principal Investigator: | Simon Mahler, MD | Wake Forest Baptist Medical Center |
Responsible Party: | Grifols Therapeutics LLC |
ClinicalTrials.gov Identifier: | NCT04480424 |
Other Study ID Numbers: |
GC2007 |
First Posted: | July 21, 2020 Key Record Dates |
Last Update Posted: | November 11, 2021 |
Last Verified: | November 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Coronavirus Disease Severe acute respiratory syndrome coronavirus 2 SARS-CoV-2 Coronavirus Infections Coronaviridae Infections Virus Diseases |
Immunoglobulins Antibodies Gamma-globulins Immunoglobulins, Intravenous Immunologic Factors Physiological Effects of Drugs |
COVID-19 Respiratory Tract Infections Infections Pneumonia, Viral Pneumonia Virus Diseases Coronavirus Infections Coronaviridae Infections |
Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases Immunoglobulins, Intravenous Immunologic Factors Physiological Effects of Drugs |