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Coronavirus Disease 2019 (COVID-19)Phase 2NCT04409509

Treatment With CSL312 in Adults With Coronavirus Disease 2019 (COVID-19)

A Phase 2 study testing Garadacimab, Factor XIIa Antagonist Monoclonal Antibody in people with Coronavirus Disease 2019 (COVID-19), run by CSL Behring at 14 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a prospective, phase 2, multicenter, randomized, double blind, placebo controlled, parallel group study to assess the safety and efficacy of CSL312 administered intravenously, in combination with standard of care (SOC) treatment, in patients with Coronavirus disease 2019 (COVID 19) Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Coronavirus Disease 2019 (COVID-19)
What is being tested?
Garadacimab, Factor XIIa Antagonist Monoclonal Antibody
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
124 participants
Where
14 sitesUnited States
Study dates
1 Jul 2020to 12 Jan 2021
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥ 18 years
  • Positive for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection as determined using a molecular diagnostic test (reverse transcription polymerase chain reaction [RT-PCR] or equivalent) approved by regulatory authorities (including Food and Drug Administration or Brazilian Health Regulatory Agency) or allowed under an emergency use authorization within 14 days before Screening. If a false negative result is suspected, the SARS-CoV-2 test may be repeated within the Screening Period.
  • Chest CT scan or X ray results confirming interstitial pneumonia
  • Severe COVID 19 disease as evidenced by ≥ 1 of the following criteria at Screening including within 24 hours before Screening:
  • Respiratory frequency > 30 breaths per minute
  • SpO2 ≤ 93% on room air
Show all 9Show fewer
  • Ratio of partial pressure of arterial oxygen to fraction of inspired oxygen (PaO2/FiO2) < 300
  • Ratio of Arterial oxygen saturation to fraction of inspired oxygen (SaO2/FiO2 ratio) < 218 (if PaO2/FiO2 ratio is not available)
  • Radiographic lung infiltrates > 50%

Who cannot join

  • Currently enrolled, planning to enroll, or participated, within the last 30 days, in a clinical study requiring administration of an IP, including expanded access or compassionate use with the only exception being administration of convalescent plasma. Administration of IP is permitted only if an emergency use authorization has been granted (eg, remdesivir). Additionally, off label use of approved drugs (eg, anti IL 6/anti IL 6R) is also permitted.
  • Pregnant or breastfeeding (female subjects)
  • Intubated and require mechanical ventilation (including ECMO) at the time of randomization
  • In the opinion of the investigator, the subject is expected to be intubated in the first 24 hours after IMP administration
  • Has a Do-Not-Intubate (DNI) or Do-Not-Resuscitate (DNR) order
  • In the opinion of the investigator, not expected to survive for > 48 hours after admission
Show all 19Show fewer
  • Presence of any of the following comorbid conditions prior to randomization and prior to SARS CoV 2 infection:
  • Severe heart failure (New York Heart Association Class IV)
  • End stage renal disease (Stage ≥ 4) or need for renal replacement therapy
  • Biopsy confirmed cirrhosis, portal hypertension, or hepatic encephalopathy
  • Malignancy (Stage IV)
  • Chronic lung disease requiring the use of oxygen at home
  • Active tuberculosis disease
  • Active bleeding or a current clinically significant coagulopathy (eg, international normalized ratio [INR] > 1.5) or clinically significant risk for bleeding (eg, recent intracranial hemorrhage or bleeding peptic ulcer within the last 4 weeks)
  • History of venous thrombosis, myocardial infarction or cerebrovascular event within 3 months, or a prothrombotic disorder (eg, antithrombin III, protein C or protein S deficiency)
  • Known or suspected Grade 3 or 4 infusion-related reaction or hypersensitivity (per Common Terminology Criteria for Adverse Events [CTCAE]) to monoclonal antibody therapy, or hypersensitivity to the IMP or any excipients of the IMP
  • Currently receiving a therapy not permitted during the study.
  • Female subject of childbearing potential or fertile male subject either not using or not willing to use an acceptable method of contraception to avoid pregnancy during the study and for 90 days after receipt of the last dose of IMP
  • Any clinical or laboratory abnormality or other underlying conditions (eg, psychological disorders, substance abuse) that would render the subject unsuitable for participation in the study, in the opinion of the investigator

Trial locations and contacts

14 sites in 1 country.

14 sites in 1 country

United States14 sites
  • Inova Alexandria Hospital

    Alexandria, Virginia, 22304

  • PharmaTex Research

    Amarillo, Texas, 79109

  • Nova Clinical Research, LLC

    Bradenton, Florida, 34209

  • Sisters of Charity Hospital/ St. Joseph's Campus

    Buffalo, New York, 14225

  • Lahey Hospital and Medical Center

    Burlington, Massachusetts, 01805

  • Carolina Institute for Clinical Research

    Fayetteville, North Carolina, 28304

  • UT Health Science Center, McGovern Medical School

    Houston, Texas, 77030

  • University of Mississippi Medical Center

    Jackson, Mississippi, 39216

  • MercyOne North Iowa Medical Center

    Mason City, Iowa, 50401

  • Monument Health Clinical Research

    Rapid City, South Dakota, 57701

  • Theia Clinical Research, LLC

    St. Petersburg, Florida, 33707

  • Holy Name Hospital

    Teaneck, New Jersey, 07666

  • Inspira Health Center Vineland

    Vineland, New Jersey, 08360

  • Northeast Iowa Medical Education Foundation

    Waterloo, Iowa, 50702

Other trials in United States

About this study

Official title: A Phase 2, Multicenter, Double Blind, Randomized, Placebo-Controlled Study to Evaluate CSL312 in Coronavirus Disease 2019 (COVID 19)

This is a prospective, phase 2, multicenter, randomized, double blind, placebo controlled, parallel group study to assess the safety and efficacy of CSL312 administered intravenously, in combination with standard of care (SOC) treatment, in patients with Coronavirus disease 2019 (COVID 19)

Being tested
Garadacimab, Factor XIIa Antagonist Monoclonal Antibody, Placebo
Keywords
Prevention of respiratory failure
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Garadacimab, Factor XIIa Antagonist Monoclonal AntibodyBiological

    Garadacimab, Factor XIIa Antagonist Monoclonal Antibody administered intravenously

  • PlaceboDrug

    CSL312 diluent administered intravenously

Study groups in NCT04409509
Study groupRoleWhat they receive
CSL312ExperimentalGaradacimab, Factor XIIa Antagonist Monoclonal Antibody administered intravenously
Receives: Biological: Garadacimab, Factor XIIa Antagonist Monoclonal Antibody
PlaceboPlacebo comparatorCSL312 diluent administered intravenously
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Percent of Participants With Tracheal Intubation or Death Prior to Tracheal Intubation

    Measured: From randomization to Day 28

Secondary outcomes (24)
  1. Percent of Participants With Death From All Causes

    Measured: From randomization to Day 28

  2. Percent of Participants With Tracheal Intubation

    Measured: From randomization to Day 28

  3. Number of Participants With ≥ 2-Point Improvement Compared to Baseline on National Institute of Allergy and Infectious Diseases (NIAID) Ordinal Scale

    The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 8) Death; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 6) Hospitalized, on non-invasive ventilation or high flow oxygen devices; 5) Hospitalized, requiring supplemental oxygen; 4) Hospitalized, not requiring supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 3) Hospitalized, not requiring supplemental oxygen - no longer requires ongoing medical care; 2) Not hospitalized, limitation on activities and/or requiring home oxygen; 1) Not hospitalized, no limitations on activities.

    Measured: From randomization to Day 28

  4. Percent of Participants With ≥ 2-Point Improvement Compared to Baseline on NIAID

    The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 8) Death; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 6) Hospitalized, on non-invasive ventilation or high flow oxygen devices; 5) Hospitalized, requiring supplemental oxygen; 4) Hospitalized, not requiring supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 3) Hospitalized, not requiring supplemental oxygen - no longer requires ongoing medical care; 2) Not hospitalized, limitation on activities and/or requiring home oxygen; 1) Not hospitalized, no limitations on activities.

    Measured: From randomization to Day 28

  5. Number of Participants Within Each of the Categories of the NIAID at End of Study

    The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 8) Death; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 6) Hospitalized, on non-invasive ventilation or high flow oxygen devices; 5) Hospitalized, requiring supplemental oxygen; 4) Hospitalized, not requiring supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 3) Hospitalized, not requiring supplemental oxygen - no longer requires ongoing medical care; 2) Not hospitalized, limitation on activities and/or requiring home oxygen; 1) Not hospitalized, no limitations on activities.

    Measured: Day 28

  6. Percent of Participants Within Each of the Categories of the NIAID at End of Study

    The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 8) Death; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 6) Hospitalized, on non-invasive ventilation or high flow oxygen devices; 5) Hospitalized, requiring supplemental oxygen; 4) Hospitalized, not requiring supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 3) Hospitalized, not requiring supplemental oxygen - no longer requires ongoing medical care; 2) Not hospitalized, limitation on activities and/or requiring home oxygen; 1) Not hospitalized, no limitations on activities.

    Measured: Day 28

  7. Percent of Participants Requiring Continuous Positive Airway Pressure (CPAP) or Bilevel Positive Airway Pressure (BiPAP)

    Measured: From randomization to Day 28

  8. Percent of Participants Requiring Extracorporeal Membrane Oxygenation (ECMO)

    None of the enrolled subjects required the use of ECMO during their participation in this study. Therefore, no data to report for this outcome measure.

    Measured: From randomization to Day 28

  9. Percent of Participants Requiring High-Flow Nasal Cannula (HFNC)

    Measured: From randomization to Day 28

  10. Maximum Change From Baseline in Sequential Organ Failure Assessment (SOFA) Score

    The score is based on six different scores, one each for the respiratory, cardiovascular, hepatic, coagulation, renal and neurological systems. Each system is scored from 0 (normal function) to 4 (most abnormal) with a total score ranging from 0 to 24. A high total SOFA score have been shown to be related to a worse outcome.

    Measured: From randomization to Day 28

  11. Change From Baseline in SOFA Total Score

    The score is based on six different scores, one each for the respiratory, cardiovascular, hepatic, coagulation, renal and neurological systems. Each system is scored from 0 (normal function) to 4 (most abnormal) with a total score ranging from 0 to 24. A high total SOFA score have been shown to be related to a worse outcome.

    Measured: From randomization to Day 28

  12. Change From Baseline in the Individual Components of SOFA Score

    The score is based on six different scores, one each for the respiratory, cardiovascular, hepatic, coagulation, renal and neurological systems. Each system is scored from 0 (normal function) to 4 (most abnormal) with a total score ranging from 0 to 24. A high total SOFA score have been shown to be related to a worse outcome.

    Measured: From randomization to Day 28

  13. Length of Hospital Stay

    Measured: From randomization to Day 28 (+/- 2 days)

  14. Number of Participants Experiencing Adverse Events (AEs)

    Measured: Up to 28 days after CSL312 or placebo administration

  15. Percent of Participants Experiencing AEs

    Measured: Up to 28 days after CSL312 or placebo administration

  16. Number of Participants Experiencing Serious Adverse Events (SAEs)

    Measured: Up to 28 days after CSL312 or placebo administration

  17. Percent of Participants Experiencing SAEs

    Measured: Up to 28 days after CSL312 or placebo administration

  18. Number of Participants With Adverse Events of Special Interest (AESIs)

    Measured: Up to 28 days after CSL312 or placebo administration

  19. Percent of Participants With AESIs

    Measured: Up to 28 days after CSL312 or placebo administration

  20. Number of Participants With Anti-CSL312 Antibodies

    Measured: Up to 28 days after CSL312 or placebo administration

  21. Maximum Plasma Concentration (Cmax) of CSL312

    Measured: Up to 28 days after CSL312 administration

  22. Time to Maximum Plasma Concentration (Tmax) of CSL312

    Measured: Up to 28 days after CSL312 administration

  23. Area Under the Plasma Concentration-Time Curve From Time Zero to the Time of the Last Measurable Concentration (AUC0-Last) of CSL312

    Measured: Up to 28 days after CSL312 administration

  24. Terminal Half-life (T1/2) of CSL312

    Measured: Up to 28 days after CSL312 administration

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Jun 2020
  2. Study start1 Jul 2020
  3. Primary completion12 Jan 2021
  4. Study completion12 Jan 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
124 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04409509
Sponsor's protocol ID
CSL312_COVID-19
Status last verified
Jan 2022
First submitted
28 May 2020
Last updated
24 Jan 2022
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: CSL will consider requests to share Individual Patient Data (IPD) from systematic review groups or bona-fide researchers. For information on the process and requirements for submitting a voluntary data sharing request for IPD, please contact CSL at clinicaltrials@cslbehring.com. Applicable country specific privacy and other laws and regulations will be considered and may prevent sharing of IPD. If the request is approved and the researcher has executed an appropriate data sharing agreement, IPD that has been appropriately anonymized will be available.

Publications

  • Papi A, Stapleton RD, Shore PM, Bica MA, Chen Y, Larbig M, Welte T. Efficacy and Safety of Garadacimab in Combination with Standard of Care Treatment in Patients with Severe COVID-19. Lung. 2023 Apr;201(2):159-170. doi: 10.1007/s00408-023-00615-9. Epub 2023 Mar 31.

    PubMed 37000214

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Garadacimab, Factor XIIa Antagonist Monoclonal Antibody in people with Coronavirus Disease 2019 (COVID-19), run by CSL Behring at 14 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Jan 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 14 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 24 Jan 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Percent of Participants With Tracheal Intubation or Death Prior to Tracheal Intubation (time frame: From randomization to Day 28). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04409509, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jan 2022.

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