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Study of Efficacy and Safety of DV890 in Patients With COVID-19 Pneumonia

Phase 2, Randomized, Controlled, Open Label Multi-center Study to Assess Efficacy and Safety of DFV890 for the Treatment of SARS-CoV-2 Infected Patients With COVID-19 Pneumonia and Impaired Respiratory Function

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04382053
Enrollment
143
Registered
2020-05-11
Start date
2020-05-27
Completion date
2020-12-24
Last updated
2022-07-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19 Pneumonia, Impaired Respiratory Function

Keywords

COVID-19 pneumonia, SARS-CoV-2, APACHE II, DFV890, inflammasome

Brief summary

This clinical study was designed to assess the efficacy and safety of DFV890 for the treatment of severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2) infected patients with coronavirus disease 2019 (COVID-19) pneumonia and impaired respiratory function.

Detailed description

This was a Phase II, randomized, controlled, open label multi-center study to assess the efficacy and safety of DFV890 for the treatment of SARS-CoV-2 infected patients with COVID-19 pneumonia and impaired respiratory function. The study consisted of four distinct study periods: Screening / Baseline visit (Day -1 to 1): lasted up to a maximum of 24 hours and comprised a screening / baseline assessment. This visit was used to confirm that the study inclusion and exclusion criteria were met and served as baseline assessment prior to randomization. Treatment period (Day 1-15): Participants were randomized as soon as possible, but within a maximum of 24 hours after screening in a 1:1 ratio receiving either DFV890 in addition to standard of care (SoC) or SoC alone. Participants in the investigational treatment arm received DFV890 administered for a total of 14 days in addition to SoC. Participants in the control arm received SoC alone. Study assessments were conducted every 2 days for hospitalized participants. The End of Treatment (EOT) visit took place on Day 15. If participants were discharged from the hospital prior to Day 15, assessments on the day of discharge were performed according to the schedule listed under Day 15; participants continued to take the investigational treatment at home to complete the 14-day treatment period and the participants returned to the site for the Day 15/EOT assessment. If a hospital visit was not possible at Day 15, then home nursing services were used to support the last visit. Follow-up (Day 16-29): After completion of the treatment period, participants were observed until Day 29 or discharged from hospital, whichever was sooner. Study assessments were conducted every 2 days for hospitalized participants. If participants were discharged from hospital prior to Day 29, a study visit conducted by telephone was performed on Day 29. 30-day safety follow-up assessment (Day 45): A follow-up visit for safety was conducted by telephone.

Interventions

DRUGDFV890

DFV890 25 mg tablets orally/nasogastrically administered 50 mg b.i.d for 14 days in addition to SoC.

DRUGStandard of Care (SoC)

SoC included a variety of supportive therapies that ranged from the administration of supplementary oxygen to full intensive care support, alongside the use of antiviral treatment, convalescent plasma, corticosteroids, antibiotics or other agents.

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Male and female patients aged 18-80 years inclusive at screening. * Clinically diagnosed with the SARS-CoV-2 virus by polymerase chain reaction (PCR) or by other approved diagnostic methodology within 7 days prior to randomization. * Hospitalized with COVID-19-induced pneumonia evidenced by chest X-ray, computed tomography scan (CT scan) or magnetic resonance scan (MR scan), taken within 5 days prior to randomization (within 24 hours in patients in the Netherlands). * Impaired respiratory function, defined as peripheral oxygen saturation (SpO2) ≤93% on room air or partial pressure of oxygen (PaO2) / fraction of inspired oxygen (FiO2) \<300 millimeter of mercury (mmHg) at screening. For cities located at altitudes greater than 2500 m above sea level, these will be substituted with SpO2 \<90% and PaO2/FiO2 \<250 mmHg. * APACHE II score of ≥10 at screening. * C-reactive protein (CRP) ≥20 mg/L and/or ferritin level ≥600 μg/L at screening. * Body mass index of ≥18 to \<40kg/m2 at screening.

Exclusion criteria

* Suspected active or chronic bacterial (including Mycobacterium tuberculosis), fungal, viral, or other infection (besides SARS-CoV-2). * In the opinion of the investigator, progression to death is imminent and inevitable within the next 24 hours, irrespective of the provision of treatment. * Intubated prior to randomization. * Previous treatment with anti-rejection and immunomodulatory drugs within the past 2 weeks, or within the past 30 days or 5 half-lives (whichever is the longer) for immunomodulatory therapeutic antibodies or prohibited drugs, with the exception of hydroxychloroquine, chloroquine or corticosteroids: For COVID-19 infection, ongoing corticosteroid treatment is permitted at doses as per local SoC.For non-COVID-19 disorders, ongoing corticosteroid treatment is permitted at doses up to and including prednisolone 10 mg daily or equivalent. In patients in the Netherlands only, the use of hydroxychloroquine and/or chloroquine in the past 2 weeks are exclusionary. * Serum alanine transaminase (ALT) or aspartate transaminase (AST) \>5 times upper limit of normal detected within 24 hours at screening or at baseline (according to local laboratory reference ranges) or other evidence if severe hepatic impairment (Child-Pugh Class C). * Absolute peripheral blood neutrophil count of ≤1000/mm3. * Estimated GFR (eGFR) ≤30 mL/min/1.73m2 (based on CKD-EPI formula). * Patients currently being treated with drugs known to be strong or moderate inducers of isoenzyme CYP2C9 and/or strong inhibitors of CYP2C9 and/or strong inducers of cytochrome P450, family 3, subfamily A (CYP3A) and the treatment cannot be discontinued or switched to a different medication prior to starting study treatment. * Patients with innate or acquired immunodeficiencies. * Patients who have undergone solid organ or stem cell transplantation.

Design outcomes

Primary

MeasureTime frameDescription
APACHE II Severity of Disease Score on Day 15 or on the Day of Discharge (Whichever is Earlier)up to Day 15The APACHE II (Acute Physiology And Chronic Health Evaluation II) is a severity-of-disease classification system. An integer score from 0 to 71 is computed based on several measurements; higher scores correspond to more severe disease and a higher risk of death. In practice, it is rare for any participant to accumulate more than 55 points. APACHE II score was measured on Day 15 or on the day of discharge (whichever was earlier). Participants who died on Day 15 or earlier were assigned the highest observed APACHE II score of any of the participants at any time during the trial (worst case imputation for deaths). Missing data values of the parameters required for the derivation of the APACHE II score were replaced by the last available assessment.

Secondary

MeasureTime frameDescription
Serum C-reactive Protein (CRP) LevelsDays 2, 4, 6, 8, 10, 12, 14 and 15C-reactive protein (CRP) is a blood test marker for inflammation in the body. It was analyzed on a log-scale fitting a repeated measures mixed model including treatment group, study day, the three stratification factors and log transformed baseline CRP as a covariate. Values reported were back-transformed to original scale.
Clinical Status Over TimeBaseline, days 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27 and 29Clinical status was measured with World Health Organization (WHO) 9-point ordinal scale. The scoring is - Uninfected patients have a score 0. - Ambulatory patients can have a score 1 (no limitation of activities) or 2 (limitation of activities). - Hospitalized patients with mild disease can have score 3 (no oxygen therapy) or 4 (oxygen by mask or nasal prongs). - Hospitalized patients with severe disease can have score 5 (non-invasive ventilation or high-flow oxygen), 6 (intubation and mechanical ventilation) or 7 (ventilation + additional organ support - pressors, renal replacement therapy, extracorporeal membrane oxygenation). - Patients who die have a score 8. Missing data values were handled as follows: For participants who died prior to Day 29, the score for death was imputed for all following visits up to and including day 29. For all the other participants, last observation carried forward was applied up to and including Day 29.
Number of Participants Not Requiring Mechanical Ventilation for SurvivalUntil Day 15 (Assessments on Days 2, 4, 6, 8, 10, 12, 14 and 15) and until Day 29 (Assessments on Days 17, 19, 21, 23, 25, 27 and 29)Number of participants not requiring mechanical ventilation for survival until Day 15 and Day 29: defined by WHO 9-point ordinal scale score of \< 6 points at all time points assessments. The scoring is - Uninfected patients have a score 0. - Ambulatory patients can have a score 1 (no limitation of activities) or 2 (limitation of activities). - Hospitalized patients with mild disease can have score 3 (no oxygen therapy) or 4 (oxygen by mask or nasal prongs). - Hospitalized patients with severe disease can have score 5 (non-invasive ventilation or high-flow oxygen), 6 (intubation and mechanical ventilation) or 7 (ventilation + additional organ support). - Patients who die have a score 8. Missing data values were handled as follows: For participants who died prior to Day 29, the score for death was imputed for all following visits up to and including day 29. For all the other participants, last observation carried forward was applied up to and including Day 29.
Number of Participants With at Least One-point Improvement From Baseline in Clinical StatusBaseline, Day 15 and Day 29Number of participants with at least one-point improvement from baseline in clinical status, which was measured with WHO 9-point ordinal scale. The scoring is - Uninfected patients have a score 0. - Ambulatory patients can have a score 1 (no limitation of activities) or 2 (limitation of activities). - Hospitalized patients with mild disease can have score 3 (no oxygen therapy) or 4 (oxygen by mask or nasal prongs). - Hospitalized patients with severe disease can have score 5 (non-invasive ventilation or high-flow oxygen), 6 (intubation and mechanical ventilation) or 7 (ventilation + additional organ support). - Patients who die have a score 8. Missing data values were handled as follows: For participants who died prior to Day 29, the score for death was imputed for all following visits up to and including day 29. For all the other participants, last observation carried forward was applied up to and including Day 29.

Countries

Argentina, Brazil, Denmark, Germany, Hungary, India, Mexico, Netherlands, Peru, Russia, South Africa, Spain

Participant flow

Recruitment details

Participants were recruited from 30 sites in 12 countries.

Pre-assignment details

Participants underwent a Screening period of up to 24 hours which included screening and baseline assessments.

Participants by arm

ArmCount
DFV890 + SoC
DFV890 50 mg was administered orally or nasogastrically twice per day (b.i.d) approximately 12 hours apart (morning and evening) for 14 days in addition to SoC.
71
Standard of Care (SoC)
SoC was used as an active comparator arm.
72
Total143

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath68
Overall StudyLost to Follow-up02
Overall StudyProtocol Deviation12
Overall StudyWithdrawal by Subject21

Baseline characteristics

CharacteristicStandard of Care (SoC)TotalDFV890 + SoC
Age, Continuous61.5 Years
STANDARD_DEVIATION 10.38
60.8 Years
STANDARD_DEVIATION 11.91
60.0 Years
STANDARD_DEVIATION 13.31
Race (NIH/OMB)
American Indian or Alaska Native
5 Participants11 Participants6 Participants
Race (NIH/OMB)
Asian
7 Participants14 Participants7 Participants
Race (NIH/OMB)
Black or African American
3 Participants6 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
57 Participants112 Participants55 Participants
Sex: Female, Male
Female
24 Participants46 Participants22 Participants
Sex: Female, Male
Male
48 Participants97 Participants49 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
8 / 708 / 7216 / 142
other
Total, other adverse events
12 / 706 / 7218 / 142
serious
Total, serious adverse events
16 / 7011 / 7227 / 142

Outcome results

Primary

APACHE II Severity of Disease Score on Day 15 or on the Day of Discharge (Whichever is Earlier)

The APACHE II (Acute Physiology And Chronic Health Evaluation II) is a severity-of-disease classification system. An integer score from 0 to 71 is computed based on several measurements; higher scores correspond to more severe disease and a higher risk of death. In practice, it is rare for any participant to accumulate more than 55 points. APACHE II score was measured on Day 15 or on the day of discharge (whichever was earlier). Participants who died on Day 15 or earlier were assigned the highest observed APACHE II score of any of the participants at any time during the trial (worst case imputation for deaths). Missing data values of the parameters required for the derivation of the APACHE II score were replaced by the last available assessment.

Time frame: up to Day 15

Population: Safety analysis set: All randomized participants, who attended at least one post-baseline visit.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
DFV890 + SoCAPACHE II Severity of Disease Score on Day 15 or on the Day of Discharge (Whichever is Earlier)8.7 Score on a scaleStandard Error 1.06
Standard of Care (SoC)APACHE II Severity of Disease Score on Day 15 or on the Day of Discharge (Whichever is Earlier)8.6 Score on a scaleStandard Error 1.05
p-value: 0.46790% CI: [-2, 2.3]ANCOVA
Secondary

Clinical Status Over Time

Clinical status was measured with World Health Organization (WHO) 9-point ordinal scale. The scoring is - Uninfected patients have a score 0. - Ambulatory patients can have a score 1 (no limitation of activities) or 2 (limitation of activities). - Hospitalized patients with mild disease can have score 3 (no oxygen therapy) or 4 (oxygen by mask or nasal prongs). - Hospitalized patients with severe disease can have score 5 (non-invasive ventilation or high-flow oxygen), 6 (intubation and mechanical ventilation) or 7 (ventilation + additional organ support - pressors, renal replacement therapy, extracorporeal membrane oxygenation). - Patients who die have a score 8. Missing data values were handled as follows: For participants who died prior to Day 29, the score for death was imputed for all following visits up to and including day 29. For all the other participants, last observation carried forward was applied up to and including Day 29.

Time frame: Baseline, days 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27 and 29

Population: Safety analysis set: All randomized participants, who attended at least one post-baseline visit.

ArmMeasureGroupValue (MEAN)Dispersion
DFV890 + SoCClinical Status Over TimeDay 291.9 Score on a scaleStandard Deviation 2.34
DFV890 + SoCClinical Status Over TimeDay 63.9 Score on a scaleStandard Deviation 1.11
DFV890 + SoCClinical Status Over TimeDay 143.3 Score on a scaleStandard Deviation 1.75
DFV890 + SoCClinical Status Over TimeDay 24.3 Score on a scaleStandard Deviation 0.58
DFV890 + SoCClinical Status Over TimeDay 44.3 Score on a scaleStandard Deviation 0.83
DFV890 + SoCClinical Status Over TimeDay 83.8 Score on a scaleStandard Deviation 1.31
DFV890 + SoCClinical Status Over TimeDay 103.6 Score on a scaleStandard Deviation 1.48
DFV890 + SoCClinical Status Over TimeDay 123.4 Score on a scaleStandard Deviation 1.66
DFV890 + SoCClinical Status Over TimeDay 152.8 Score on a scaleStandard Deviation 2.02
DFV890 + SoCClinical Status Over TimeDay 172.7 Score on a scaleStandard Deviation 2.01
DFV890 + SoCClinical Status Over TimeDay 192.6 Score on a scaleStandard Deviation 2.01
DFV890 + SoCClinical Status Over TimeDay 212.6 Score on a scaleStandard Deviation 2.01
DFV890 + SoCClinical Status Over TimeDay 232.6 Score on a scaleStandard Deviation 2.03
DFV890 + SoCClinical Status Over TimeDay 252.6 Score on a scaleStandard Deviation 2.07
DFV890 + SoCClinical Status Over TimeDy 272.6 Score on a scaleStandard Deviation 2.1
DFV890 + SoCClinical Status Over TimeBaseline4.3 Score on a scaleStandard Deviation 0.49
Standard of Care (SoC)Clinical Status Over TimeDay 192.5 Score on a scaleStandard Deviation 2.27
Standard of Care (SoC)Clinical Status Over TimeDay 143.1 Score on a scaleStandard Deviation 2.03
Standard of Care (SoC)Clinical Status Over TimeDay 64.2 Score on a scaleStandard Deviation 1.13
Standard of Care (SoC)Clinical Status Over TimeDay 123.3 Score on a scaleStandard Deviation 1.98
Standard of Care (SoC)Clinical Status Over TimeDy 272.4 Score on a scaleStandard Deviation 2.31
Standard of Care (SoC)Clinical Status Over TimeDay 212.5 Score on a scaleStandard Deviation 2.33
Standard of Care (SoC)Clinical Status Over TimeDay 291.9 Score on a scaleStandard Deviation 2.57
Standard of Care (SoC)Clinical Status Over TimeBaseline4.3 Score on a scaleStandard Deviation 0.44
Standard of Care (SoC)Clinical Status Over TimeDay 152.6 Score on a scaleStandard Deviation 2.24
Standard of Care (SoC)Clinical Status Over TimeDay 24.3 Score on a scaleStandard Deviation 0.8
Standard of Care (SoC)Clinical Status Over TimeDay 252.4 Score on a scaleStandard Deviation 2.31
Standard of Care (SoC)Clinical Status Over TimeDay 44.3 Score on a scaleStandard Deviation 0.95
Standard of Care (SoC)Clinical Status Over TimeDay 172.5 Score on a scaleStandard Deviation 2.22
Standard of Care (SoC)Clinical Status Over TimeDay 83.8 Score on a scaleStandard Deviation 1.5
Standard of Care (SoC)Clinical Status Over TimeDay 232.4 Score on a scaleStandard Deviation 2.31
Standard of Care (SoC)Clinical Status Over TimeDay 103.6 Score on a scaleStandard Deviation 1.88
Secondary

Number of Participants Not Requiring Mechanical Ventilation for Survival

Number of participants not requiring mechanical ventilation for survival until Day 15 and Day 29: defined by WHO 9-point ordinal scale score of \< 6 points at all time points assessments. The scoring is - Uninfected patients have a score 0. - Ambulatory patients can have a score 1 (no limitation of activities) or 2 (limitation of activities). - Hospitalized patients with mild disease can have score 3 (no oxygen therapy) or 4 (oxygen by mask or nasal prongs). - Hospitalized patients with severe disease can have score 5 (non-invasive ventilation or high-flow oxygen), 6 (intubation and mechanical ventilation) or 7 (ventilation + additional organ support). - Patients who die have a score 8. Missing data values were handled as follows: For participants who died prior to Day 29, the score for death was imputed for all following visits up to and including day 29. For all the other participants, last observation carried forward was applied up to and including Day 29.

Time frame: Until Day 15 (Assessments on Days 2, 4, 6, 8, 10, 12, 14 and 15) and until Day 29 (Assessments on Days 17, 19, 21, 23, 25, 27 and 29)

Population: Safety analysis set: All randomized participants, who attended at least one post-baseline visit.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
DFV890 + SoCNumber of Participants Not Requiring Mechanical Ventilation for SurvivalUntil Day 1560 Participants
DFV890 + SoCNumber of Participants Not Requiring Mechanical Ventilation for SurvivalUntil Day 2960 Participants
Standard of Care (SoC)Number of Participants Not Requiring Mechanical Ventilation for SurvivalUntil Day 1559 Participants
Standard of Care (SoC)Number of Participants Not Requiring Mechanical Ventilation for SurvivalUntil Day 2958 Participants
Secondary

Number of Participants With at Least One-point Improvement From Baseline in Clinical Status

Number of participants with at least one-point improvement from baseline in clinical status, which was measured with WHO 9-point ordinal scale. The scoring is - Uninfected patients have a score 0. - Ambulatory patients can have a score 1 (no limitation of activities) or 2 (limitation of activities). - Hospitalized patients with mild disease can have score 3 (no oxygen therapy) or 4 (oxygen by mask or nasal prongs). - Hospitalized patients with severe disease can have score 5 (non-invasive ventilation or high-flow oxygen), 6 (intubation and mechanical ventilation) or 7 (ventilation + additional organ support). - Patients who die have a score 8. Missing data values were handled as follows: For participants who died prior to Day 29, the score for death was imputed for all following visits up to and including day 29. For all the other participants, last observation carried forward was applied up to and including Day 29.

Time frame: Baseline, Day 15 and Day 29

Population: Safety analysis set: All randomized participants, who attended at least one post-baseline visit.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
DFV890 + SoCNumber of Participants With at Least One-point Improvement From Baseline in Clinical StatusDay 1559 Participants
DFV890 + SoCNumber of Participants With at Least One-point Improvement From Baseline in Clinical StatusDay 2961 Participants
Standard of Care (SoC)Number of Participants With at Least One-point Improvement From Baseline in Clinical StatusDay 1553 Participants
Standard of Care (SoC)Number of Participants With at Least One-point Improvement From Baseline in Clinical StatusDay 2960 Participants
Secondary

Serum C-reactive Protein (CRP) Levels

C-reactive protein (CRP) is a blood test marker for inflammation in the body. It was analyzed on a log-scale fitting a repeated measures mixed model including treatment group, study day, the three stratification factors and log transformed baseline CRP as a covariate. Values reported were back-transformed to original scale.

Time frame: Days 2, 4, 6, 8, 10, 12, 14 and 15

Population: PD analysis set: All randomized participants with no protocol deviations with relevant impact on PD data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
DFV890 + SoCSerum C-reactive Protein (CRP) LevelsDay 107.0 Milligram / LiterStandard Error 1.27
DFV890 + SoCSerum C-reactive Protein (CRP) LevelsDay 148.1 Milligram / LiterStandard Error 1.31
DFV890 + SoCSerum C-reactive Protein (CRP) LevelsDay 15 / end of study6.9 Milligram / LiterStandard Error 1.27
DFV890 + SoCSerum C-reactive Protein (CRP) LevelsDay 231.4 Milligram / LiterStandard Error 1.14
DFV890 + SoCSerum C-reactive Protein (CRP) LevelsDay 422.2 Milligram / LiterStandard Error 1.19
DFV890 + SoCSerum C-reactive Protein (CRP) LevelsDay 611.5 Milligram / LiterStandard Error 1.2
DFV890 + SoCSerum C-reactive Protein (CRP) LevelsDay 87.7 Milligram / LiterStandard Error 1.25
DFV890 + SoCSerum C-reactive Protein (CRP) LevelsDay 127.5 Milligram / LiterStandard Error 1.3
Standard of Care (SoC)Serum C-reactive Protein (CRP) LevelsDay 127.1 Milligram / LiterStandard Error 1.31
Standard of Care (SoC)Serum C-reactive Protein (CRP) LevelsDay 108.0 Milligram / LiterStandard Error 1.27
Standard of Care (SoC)Serum C-reactive Protein (CRP) LevelsDay 426.5 Milligram / LiterStandard Error 1.18
Standard of Care (SoC)Serum C-reactive Protein (CRP) LevelsDay 146.3 Milligram / LiterStandard Error 1.31
Standard of Care (SoC)Serum C-reactive Protein (CRP) LevelsDay 810.9 Milligram / LiterStandard Error 1.24
Standard of Care (SoC)Serum C-reactive Protein (CRP) LevelsDay 15 / end of study8.2 Milligram / LiterStandard Error 1.26
Standard of Care (SoC)Serum C-reactive Protein (CRP) LevelsDay 615.1 Milligram / LiterStandard Error 1.19
Standard of Care (SoC)Serum C-reactive Protein (CRP) LevelsDay 246.6 Milligram / LiterStandard Error 1.13
p-value: 0.237Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Feb 13, 2026