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Safety and Anti-coronavirus Response of Suppression of Host Nucleotide Synthesis in Patients With COVID-19 (CRISIS)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT04425252
Recruitment Status : Completed
First Posted : June 11, 2020
Results First Posted : February 16, 2022
Last Update Posted : February 17, 2022
Information provided by (Responsible Party):
Clear Creek Bio, Inc.

Brief Summary:
This will be a phase 1a randomized, open label, multi-center study with approximately 24 subjects. All subjects will receive standard of care (SOC) per institutional guidelines for treatment of hospitalized patients with COVID-19 infection. In addition to SOC, the brequinar group will receive 5 daily doses of brequinar 100 mg.

Condition or disease Intervention/treatment Phase
COVID-19 Drug: Brequinar Other: Standard of Care Phase 1 Phase 2

Detailed Description:
This will be a phase 1a randomized, open label, multi-center study with approximately 24 subjects. All subjects will receive standard of care (SOC) per institutional guidelines for SARS-CoV-2 infection. Subjects will be randomly assigned in a 1:2 ratio to SOC alone or SOC plus brequinar. The SOC plus brequinar group will receive 5 daily doses of brequinar 100 mg on Days 1 - 5 in addition to SOC. Physical examinations, vital signs, laboratory assessments, SARS-CoV-2 testing, and other observations will be conducted by experienced personnel throughout the study based on the Schedule of Events. Blood chemistry tests include blood urea nitrogen (BUN), creatinine, alkaline phosphatase (ALP), alanine amino transferase (ALT), aspartate amino transferase (AST), bilirubin, total protein, albumin, glucose, serum electrolytes (sodium, potassium, chloride, carbon dioxide/bicarbonate, and calcium), lactate dehydrogenase (LDH). Plasma will be collected for inflammatory markers such as D-dimer, ferritin, c-reactive protein (CRP), and erythrocyte sedimentation rate (ESR). Pro-inflammatory markers will be measured. Serum is to be collected for research purposes. Hematology tests include hemoglobin, hematocrit, complete blood count with full differential, and platelet count. Nasopharyngeal swabs for viral load will be collected Days 1, 3, 5, 7, and 15. Survival will be assessed through Day 29.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 25 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: Randomized 1:2 to standard of care (SOC) alone or SOC + brequinar
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: The CRISIS Study: A Randomized Open-label Study Assessing the Safety and Anti-coronavirus Response of Suppression of Host Nucleotide Synthesis in Hospitalized Adults With Coronavirus-19 (COVID-19)
Actual Study Start Date : August 19, 2020
Actual Primary Completion Date : December 29, 2020
Actual Study Completion Date : January 12, 2021

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Standard of Care
Subjects are hospitalized for COVID-19 and will receive all supportive/interventional care per institutional guidelines.
Other: Standard of Care
Standard of Care per institutional guidelines for COVID-19 patients

Experimental: Brequinar
Subjects will receive standard of care plus brequinar 100 mg daily (Study Days 1-5).
Drug: Brequinar
DHODH inhibitor, 100 mg daily x 5 days
Other Name: Standard of Care + Brequinar

Primary Outcome Measures :
  1. Safety/Tolerability Assessed by Rates of Grade 3 or 4 Post Randomization Adverse Events [ Time Frame: Through Day 15. ]
    Safety/tolerability as assessed by number of participants with Grade 3 or 4 post randomization adverse events.

  2. Safety/Tolerability as Assessed by Rates of Serious Adverse Events (SAEs). [ Time Frame: Through Day 15 ]
    Safety/tolerability as assessed by number of participants with Serious Adverse Events (SAEs).

  3. Safety/Tolerability Measured by Mortality at Day 29 [ Time Frame: Through Day 29 ]
    Safety/tolerability as measured by mortality at Day 29

Secondary Outcome Measures :
  1. Hospitalization Status [ Time Frame: Days 3, 5, 7, and 15 ]
    All participants were hospitalized at time of study entry. This outcome measures participant hospitalization status at Days 3, 5, 7, and 15 in terms of: hospitalized in intensive care unit (ICU), hospitalized as part of initial admission, re-hospitalized (had been discharged from initial hospitalization and was re-admitted to the hospital) or was dead at the time of the assessment.

  2. Duration of Hospitalization [ Time Frame: Through Day 15 ]
    Duration in number of days from admission to discharge; days counted as an integer only.

  3. NEWS2 Score [ Time Frame: Baseline, Days 3, 5, 7, and 15. ]
    Measure Description: National Early Warning Score (NEWS) 2. Composite score of respiratory rate, oxygen saturation, systolic blood pressure, pulse, consciousness, and temperature. The NEWS2 provides a score of illness severity based on respiratory rate, SpO2, whether the patient is breathing room air or on oxygen, systolic blood pressure, heart rate, consciousness, and body temperature. The scale ranges from 20 (worst/sickest) to 0 (all measurements in a normal range). The NEWS2 was assessed at baseline, Days 3, 5, 7, and 15.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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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:

  1. Willing and able to provide informed consent for the trial, written, electronic, verbal or other method deemed acceptable by the institution and IRB.
  2. 18 years of age or older.
  3. If discharged from the hospital prior to Study Day 15 or if follow up is needed for study drug-related adverse event, willing to go to an outpatient facility if feasible or be in contact with the study team (phone call or other digital media) for remaining study assessments.
  4. Laboratory-confirmed SARS-CoV-2 infection as determined by real time polymerase chain reaction (RT-PCR) or other Food and Drug Administration (FDA)-cleared commercial or public health assay.
  5. Hospitalized (in patient with expected duration ≥ 24 hours)
  6. The effects of brequinar on the developing human fetus are unknown. For this reason, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men and women treated or enrolled on this protocol must also agree to use adequate contraception for the duration of study participation and for 90 days after completion of brequinar administration.
  7. Male subjects must agree to refrain from sperm donation from initial study drug administration until 90 days after the last dose of brequinar.
  8. ≤ 10 days since first COVID-19 symptom as determined by treating clinician.
  9. Able to swallow capsules.
  10. At least one COVID-19 symptom including but not limited to fever, cough, sore throat, malaise, headache, muscle pain, gastrointestinal symptoms, shortness of breath, dyspnea, dysgeusia, or other symptom commonly associated with COVID-19.

Exclusion Criteria:

  1. Any physical examination findings and/or history of any illness that, in the opinion of the study investigator, might confound the results of the study or pose an additional risk to the patient.
  2. Active malignancy other than squamous cell carcinoma; anticancer treatment such as chemotherapy or radiation therapy within the past month.
  3. Nursing women or women of childbearing potential (WOCBP) with a positive pregnancy test.
  4. Treatment with another DHODH inhibitor (e.g., leflunomide or teriflunomide), tacrolimus, sirolimus.
  5. Platelets ≤150,000 cell/mm3.
  6. Hemoglobin < 10 gm/dL
  7. Absolute neutrophil count < 1500 cells/mm3
  8. Renal dysfunction, i.e., creatinine clearance < 30 mL/min
  9. AST and/or ALT > 1.5 ULN, or total bilirubin > ULN
  10. History of bleeding disorders or recent surgery in the six weeks preceding enrollment
  11. Concomitant use of agents known to cause bone marrow suppression leading to thrombocytopenia
  12. History of gastrointestinal ulcer, or history of gastrointestinal bleeding.
  13. History of hepatitis B and/or C infection, active liver disease and/or cirrhosis.
  14. Heart failure, current uncontrolled cardiovascular disease, including unstable angina, uncontrolled arrhythmias, major adverse cardiac event within 6 months (e.g. stroke, myocardial infarction, hospitalization due to heart failure, or revascularization procedure).
  15. Life expectancy of < 5 days in the judgment of the treating clinician.
  16. Evidence of critical illness defined by at least one of the following:

    a. Respiratory failure requiring at least one of the following: i. Endotracheal intubation and mechanical ventilation, noninvasive positive pressure ventilation, ECMO, or clinical diagnosis of respiratory failure (i.e., clinical need for one of the preceding therapies, but preceding therapies may not be able to be administered in setting of resource limitation) ii. Shock (defined by systolic blood pressure < 90 mm Hg, or diastolic blood pressure < 60 mm Hg or requiring vasopressors) b. Multi-organ dysfunction/failure.

Information from the National Library of Medicine

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 identifier (NCT number): NCT04425252

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United States, Connecticut
Hartford Hospital
Hartford, Connecticut, United States, 06102
United States, Florida
Baptist Medical Center
Jacksonville, Florida, United States, 32207
University of South Florida/Tampa General
Tampa, Florida, United States, 33606
United States, New Mexico
University of New Mexico
Albuquerque, New Mexico, United States, 87106
United States, Pennsylvania
Temple University
Philadelphia, Pennsylvania, United States, 19140
Sponsors and Collaborators
Clear Creek Bio, Inc.
  Study Documents (Full-Text)

Documents provided by Clear Creek Bio, Inc.:
Study Protocol  [PDF] September 10, 2020
Statistical Analysis Plan  [PDF] December 17, 2020

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Responsible Party: Clear Creek Bio, Inc. Identifier: NCT04425252    
Other Study ID Numbers: CCB-CRISIS-01
First Posted: June 11, 2020    Key Record Dates
Results First Posted: February 16, 2022
Last Update Posted: February 17, 2022
Last Verified: February 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Clear Creek Bio, Inc.:
DHODH inhibition
Additional relevant MeSH terms:
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Coronavirus Infections
Respiratory Tract Infections
Pneumonia, Viral
Virus Diseases
Coronaviridae Infections
Nidovirales Infections
RNA Virus Infections
Lung Diseases
Respiratory Tract Diseases
Antineoplastic Agents
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Immunosuppressive Agents
Immunologic Factors
Physiological Effects of Drugs