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Completed

NCT Number: NCT04345614

A Study of Auxora in Patients With Severe COVID-19 Pneumonia

Part 1 of this trial enrolled 30 patients to receive Auxora (formerly CM4620) in a 2:1 randomized, open label trial of patients with severe and critical COVID-19 pneumonia. Part 2 of this study randomized 284 patients and was a randomized, double blind, placebo-controlled (RCT) study that evaluated the efficacy, safety, and the pharmacokinetic profile of Auxora in patients with severe COVID-19 pneumonia. The number of patients with an imputed PaO2/FiO2 >200 randomized into the study was capped at 26. Another 258 patients with a PaO2/FiO2 ≤200 were enrolled. Patients with an estimated PaO2/FiO2 of 75-200 were stratified to ensure balanced randomization between the Auxora and placebo arms. Subgroup analyses were performed to explore how time to recovery is influenced by baseline variables and to evaluate the treatment effect at different levels of each of these variables. The dose of Auxora was 2.0 mg/kg (1.25 mL/kg) administered at 0 hour, and then 1.6 mg/kg (1 mL/kg) at 24 hours and 1.6 mg/kg (1 mL/kg) at 48 hours from the SFISD. The dose of placebo was 1.25 mL/kg administered at 0 hour and then 1 mL/kg at 24 hours and 1 mL/kg at 48 hours from the SFISD. Remdesivir, corticosteroids and convalescent plasma were allowed. The infusion of Auxora / Placebo started within 12 hours from the time the patient or LAR provided informed consent. Efficacy analyses will be presented by treatment group (Auxora vs Placebo) based on the Efficacy Analysis Set of the imputed PaO2/FiO2 ≤200 subgroup, except where it is specified otherwise. The statistical analysis approach was designed to assess the significance of the primary and first secondary endpoint using the Benjamini and Hochberg method to control the overall trial level alpha level.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Long Beach Memorial, Long Beach, California, United States

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Part 1:

Inclusion criteria

  • 1. The diagnosis of COVID-19 established standard RT-PCR assay;
  • At least 1 of the following symptoms:

Fever, cough, sore throat, malaise, headache, muscle pain, dyspnea at rest or with exertion, confusion, or respiratory distress;

  • At least 1 of the following clinical signs:

Respiratory rate ≥30, heart rate ≥125, SpO2 <93% on room air or requires >2L oxygen by nasal cannula to maintain SpO2 ≥93%, or PaO2/FiO2 <300, estimated from pulse oximetry or determined by arterial blood gas;

  • The presence of a respiratory infiltrate or abnormality consistent with pneumonia that is documented by either a CXR or CT scan of the lungs;
  • The patient is ≥18 years of age;
  • A female patient of childbearing potential must not attempt to become pregnant for 39 months, and if sexually active with a male partner, is willing to practice acceptable methods of birth control for 39 months after the last dose of CM4620-IE;
  • A male patient who is sexually active with a female partner of childbearing potential is willing to practice acceptable methods of birth control for 39 months after the last dose of CM4620-IE. A male patient must not donate sperm for 39 months;
  • The patient is willing and able to, or has a legal authorized representative (LAR) who is willing and able to, provide informed consent to participate, and to cooperate with all aspects of the protocol.

Exclusion criteria

  • Expected survival or time to withdrawal of life-sustaining treatments expected to be <7 days.
  • Do Not Intubate order;
  • Home mechanical ventilation (noninvasive ventilation or via tracheotomy) except for continuous positive airway pressure or bi-level positive airway pressure (CPAP/BIPAP) used solely for sleep-disordered breathing;
  • PaO2/FiO2 ≤75 at the time of Screening. The PaO2/FiO2 may be estimated from pulse oximetry (Appendix 1) or determined by arterial blood gas;
  • Noninvasive positive pressure ventilation;
  • Invasive mechanical ventilation via endotracheal intubation or tracheostomy;
  • ECMO;
  • Shock defined by the use of vasopressors;
  • Multiple organ dysfunction or failure;
  • Positive Influenza A or B testing if tested as local standard of care;
  • The patient has a history any of the following: Organ or hematologic transplant;HIV; Active hepatitis B, or hepatitis C infection;
  • Current treatment with:Chemotherapy; Immunosuppressive medications or immunotherapy at the time of consent; Hemodialysis or Peritoneal Dialysis
  • Have a history of venous thromboembolism (VTE) (deep vein thrombosis [DVT] or pulmonary embolism [PE]) within 12 weeks prior to screening or have a history of recurrent (> 1) VTE;
  • The patient is known to be pregnant or is nursing;
  • Currently participating in another study of an investigational drug or therapeutic medical device at the time of consent;
  • Allergy to eggs or any of the excipients in study drug.

Part 2:

Inclusion criteria

  • Has laboratory-confirmed SARS-CoV-2 infection as determined by polymerase chain reaction (PCR) or other commercial or public health assay in any specimen, as documented by either of the following:
  • PCR positive in sample collected < 72 hours prior to randomization;
  • PCR positive in sample collected ≥ 72 hours prior to randomization, with inability to obtain a repeat sample (e.g. due to lack of testing supplies, or limited testing capacity, or results taking >24 hours, etc.) or progressive disease suggestive of ongoing SARS-CoV-2 infection;
  • At least 1 of the following symptoms: Fever, cough, sore throat, malaise, headache, muscle pain, dyspnea at rest or with exertion, confusion, or respiratory distress;
  • At least 1 of the following signs at Screening or noted in the 24 hours before Screening:
  • PaO2/FiO2 ≤200 when receiving supplemental oxygen. The PaO2/FiO2 may be estimated from pulse oximetry (Appendix 1) or determined by arterial blood gas;
  • If SpO2 ≥97%, must be receiving 10L or more of supplemental oxygen;
  • The presence of a respiratory infiltrate or abnormality consistent with pneumonia that is documented by either a chest X-ray or computerized tomography scan of the lungs;
  • The patient is ≥ 18 years of age;
  • A female patient of childbearing potential must not attempt to become pregnant for 39 months, and if sexually active with a male partner, is willing to practice acceptable methods of birth control for 39 months after the last dose of CM4620-IE;
  • A male patient who is sexually active with a female partner of childbearing potential is willing to practice acceptable methods of birth control for 39 months after the last dose of CM4620-IE. A male patient must not donate sperm for 39 months;
  • The patient is willing and able to, or has a legal authorized representative (LAR) who is willing and able to, provide informed consent to participate, and to cooperate with all aspects of the protocol.

Exclusion criteria

  • Expected survival or time to withdrawal of life-sustaining treatments expected to be <7 days.
  • Do Not Intubate order;
  • Home mechanical ventilation (noninvasive ventilation or via tracheotomy) except for continuous positive airway pressure or bi-level positive airway pressure (CPAP/BIPAP) used solely for sleep-disordered breathing;
  • PaO2/FiO2 ≤75 at the time of Screening. The PaO2/FiO2 may be estimated from pulse oximetry (Appendix 1) or determined by arterial blood gas;
  • Noninvasive positive pressure ventilation;
  • Invasive mechanical ventilation via endotracheal intubation or tracheostomy;
  • Extracorporeal membrane oxygenation (ECMO);
  • Shock defined by the use of vasopressors;
  • Multiple organ dysfunction or failure;
  • Positive Influenza A or B testing if tested as local standard of care;
  • The patient has a history of any of the following: Organ or hematologic transplant; HIV; Active hepatitis B, or hepatitis C infection;
  • Current treatment with:Chemotherapy;Immunosuppressive medications or immunotherapy at the time of consent; c. Hemodialysis or Peritoneal Dialysis;
  • Have a history of venous thromboembolism (VTE) (deep vein thrombosis [DVT] or pulmonary embolism [PE]) within 12 weeks prior to screening or have a history of recurrent (> 1) VTE;
  • The patient is known to be pregnant or is nursing;
  • Currently participating in another study of an investigational drug or therapeutic medical device at the time of consent;
  • Allergy to eggs or any of the excipients in study drug.

Treatment and study plan

Auxora (Part 1)

Drug

Auxora will be given at 2.0 mg/kg (1.25 mL/kg) on Day 1 and then 1.6 mg/kg (1.0 mL/kg) on Days 2 and 3. All doses of Auxora will be administered intravenously (IV) over 4 hours.

Other names: CM4620-Injectable Emulsion (IE)

Standard of Care (Part 1)

Drug

Patients received standard of care

Other names: Placebo-Injectable Emulsion

Auxora (Part 2)

Drug

Auxora will be given at 2.0 mg/kg (1.25 mL/kg) on Day 1 and then 1.6 mg/kg (1.0 mL/kg) on Days 2 and 3. All doses of Auxora will be administered intravenously (IV) over 4 hours.

Other names: CM4620-Injectable Emulsion (IE)

Placebo (Part 2)

Drug

Placebo will be given at 2.0 mg/kg (1.25 mL/kg) on Day 1 and then 1.6 mg/kg (1.0 mL/kg) on Days 2 and 3. All doses of Placebo will be administered intravenously (IV) over 4 hours.

Other names: Placebo-Injectable Emulsion

Primary outcomes

  1. Number of Days From the Start of the First Infusion of Study Drug (SFISD) to Recovery

    Time frame: From start of first infusion of study drug to day 60

    Defined as the number of days hospitalized but not requiring supplemental oxygen or ongoing medical care, or; discharged and requiring supplemental oxygen, or; discharged, not requiring supplemental oxygen.

Secondary outcomes

  1. Number of Participants Who Have Died at Day 30 (Mortality)

    Time frame: Day 30

  2. Number of Participants Who Have Died at Day 60 (Mortality)

    Time frame: Day 60

  3. Number of Participants Requiring Invasive Mechanical Ventilation or Dying (Part 1)

    Time frame: From start of first infusion of study drug and up to Day 28

  4. Proportion of Patients Requiring Invasive Mechanical Ventilation or Dying (Part 2)

    Time frame: from start of first infusion of study drug and up to day day 60

  5. Proportion of Patients Requiring Invasive Mechanical Ventilation (Part 2)

    Time frame: from start of first infusion of study drug and up to day Day 60

  6. Improvement in 8-point Ordinal Scale (Part 1)

    Time frame: from start of first infusion of study drug and up to day 28

    The ordinal scale is an assessment of the clinical status in a given day. The scale is as follows: 1. Death 2. Hospitalized, requiring invasive mechanical ventilation or ECMO 3. Hospitalized, requiring non-invasive ventilation or high flow supplemental oxygen 4. Hospitalized, requiring low flow supplemental oxygen 5. Hospitalized, not requiring supplemental oxygen, but requiring ongoing medical care 6. Hospitalized, not requiring supplemental oxygen or ongoing medical care 7. discharged, requiring supplemental oxygen 8. Discharged, not requiring supplemental oxygen

  7. Differences in Outcomes as Measured by an 8-point Ordinal Scale (Part 2)

    Time frame: from start of first infusion of study drug hrough Day 60

    The ordinal scale is an assessment of the clinical status in a given day. The scale is as follows: 1. Death 2. Hospitalized, requiring invasive mechanical ventilation or ECMO 3. Hospitalized, requiring non-invasive ventilation or high flow supplemental oxygen 4. Hospitalized, requiring low flow supplemental oxygen 5. Hospitalized, not requiring supplemental oxygen, but requiring ongoing medical care 6. Hospitalized, not requiring supplemental oxygen or ongoing medical care 7. discharged, requiring supplemental oxygen 8. Discharged, not requiring supplemental oxygen

  8. Change in PaO2/FiO2 (Part 1)

    Time frame: From start of first infusion of study drug through Day 28

    Measures of PaO2/FiO2 ratio

  9. Number of Days in the Hospital(Part 1)

    Time frame: From start of first infusion of study drug through Discharge up to 28 days

    Time to discharge alive from hospital

  10. Number of Days in the Hospital (Part 2)

    Time frame: from admission into the hospital until discharge from the hospital up to 60 days

  11. Number of Days in the Intensive Care Unit (ICU) (Part 2)

    Time frame: from admission into ICU until discharge from ICU up to 60 days

  12. Days Alive and Free of Mechanical Ventilation (Part 1)

    Time frame: From randomization through Day 28

  13. Number of Participants Considered Recovered (Part 1)

    Time frame: From start of first infusion of study drug through Day 28

    Recovery is defined as a 6, 7, or 8 on the 8 point ordinal scale

  14. CM4620-IE Plasma Concentration (Part 2)

    Time frame: From start of first infusion of study drug through 72 hours

    Concentration measured using a validated assay

  15. Percentage of Patients With Treatment Emergent Adverse Events (TEAE) and Serious Adverse Events (SAE)

    Time frame: From start of first infusion of study drugand through day 60

Sponsors and collaborators

Lead sponsor

CalciMedica, Inc.

Industry

Registry information

Official study title

Part 1: A Randomized Controlled Open-Label Study of CM4620 Injectable Emulsion (CM4620-IE) in Patients With Severe COVID-19 Pneumonia Part 2: A Randomized Double Blind, Placebo-Controlled Study of Auxora for the Treatment of Severe COVID-19 Pneumonia (CARDEA)

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Apr 14, 2020
Registry last updated
Mar 30, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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