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Intravenous L-Citrulline Influence on the Need for Invasive Mechanical Ventilation for Acute Hypoxemic Respiratory Failure in Patients With COVID-19

Prospective, Randomized, Double-Blind, Placebo-Controlled Phase II Trial of Intravenous L-Citrulline (Turnobi) to Delay and Potentially Prevent the Need for Invasive Mechanical Ventilation for Acute Hypoxemic Respiratory Failure in Patients With COVID-19 (SARS-CoV-2) Illness

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04570384
Enrollment
65
Registered
2020-09-30
Start date
2020-10-15
Completion date
2021-09-30
Last updated
2023-02-22

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

Conditions

Acute Hypoxemic Respiratory Failure

Brief summary

Prospective, Randomized, Double-Blind, Placebo-Controlled Phase II Trial of Intravenous L-Citrulline (Turnobi) to Delay and Potentially Prevent the Need for Invasive Mechanical Ventilation for Acute Hypoxemic Respiratory Failure in Patients with COVID-19 (SARS-CoV2) Illness. To evaluate safety and efficacy of a bolus loading dose and continuous intravenous infusion of L-Citrulline compared to placebo in patients hospitalized with COVID-19 infection (SARS-CoV-2).

Detailed description

Intravenous L-citrulline (Turnobi) administration will safely restore the homeostasis of nitric oxide synthase by increasing both plasma citrulline and arginine levels. Investigators also reason that restoration of citrulline/arginine balance through citrulline administration will safely re-establish homeostasis of NOS, lower oxidative stress, and reduce inflammation, thereby delaying and potentially preventing the need for invasive mechanical ventilation in participants hospitalized with COVID-19 infection (SARS-CoV-2). The body lives in a delicate balance of homeostasis. The urea/NO cycle plays a critical role in maintaining redox homeostasis and as such, also plays a role in regulating inflammation. The biochemical relationships are complex and depend on inter-organ transfer, membrane transport, and intracellular compartmentation. However, data above demonstrate that citrulline, arginine, and NO are critical in maintaining this homeostasis through their regulation of NOS. Inflammation, especially from infection, results in decreased activity of CPS1 and increased activity of arginase, which decreases levels of both citrulline and arginine. These decreased levels result in dysregulated and uncoupled NOS, which drives both overexuberant NO production and formation of ROS. Both the NO production and ROS further exacerbate the inflammatory cascade, resulting in other organ dysfunctions, including acute lung injury. Both inflammation and oxidative stress have been shown to be driving forces for the development of ALI and regulated NOS function is vital to reducing both. Both plasma citrulline and arginine are deficient in sepsis and levels are inversely associated with development of ALI. Furthermore, citrulline replacement safely increases plasma levels of both citrulline and arginine in healthy volunteers, BMT patients, adults with sepsis, children with sickle cell disease, and children after congenital heart surgery. It seems highly likely that citrulline therapy in the setting of COVID-19 (SARS-CoV2) induced acute hypoxemic respiratory illness will safely increase citrulline and arginine levels and help re-establish NOS homeostasis, resulting in NO production in compartments that are more homeostatically appropriate so as to reduce pulmonary vascular resistance and enhance coupling of NOS to minimize superoxide production thus reducing free radical mediated ALI.

Interventions

DRUGL-Citrulline

L-Citrulline (Turnobi) for Injection. Patients will receive an initial bolus of 20 mg/kg (maximum 1500 mg), followed by study infusion of 9 mg/kg per hour (maximum 700mg) for up to 10 days.

DRUGPlacebo

Patients randomized to placebo will receive equal volume bolus and study infusion of 5% dextrose water for a maximum of 10 days.

Sponsors

Asklepion Pharmaceuticals, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Double Blind Clinical Trial

Intervention model description

Placebo controlled and Active Drug

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Age 18-65 years. 2. Clinical evidence of COVID-19 (SARS-CoV2) infection, defined as a positive COVID-19 laboratory test plus evidence of an acute hypoxemic respiratory illness requiring oxygen. 3. Admitted and transferred to floor without intubation.

Exclusion criteria

1. No consent/inability to obtain consent 2. Patient, surrogate, or physician not committed to full support 3. Malignant or other irreversible condition and estimated 28-day mortality ≥ 50% 4. Moribund patient not expected to survive 48 hours (as defined by primary medical team) from start of study infusion 5. End-stage Liver Disease as defined by Child-Pugh Score \> 9 6. Currently enrolled in, or participated in another study of an investigational compound within the last 30 days 7. Pregnant female, or female who is breast feeding 8. Allergy to L-citrulline or arginine or any citrulline- or arginine-containing product 9. Patient not otherwise suitable for the study in the opinion of any of the investigators 10. Requirement for intubation and invasive mechanical ventilation before study enrollment

Design outcomes

Primary

MeasureTime frameDescription
Time to Non-invasive/Invasive Mechanical VentilationFrom the start of infusion to Day 60 Follow-upTime in hours from the initiation of the treatment until mechanical ventilation is required, whether non-invasive (e.g., high flow nasal cannula, bilevel positive airway pressure, oxygen therapy) or invasive (i.e., requiring intubation).
Time to Non-invasive Mechanical VentilationFrom the start of infusion to Day 60 Follow-upTime in hours from the initiation of the treatment until non-invasive mechanical ventilation is required (e.g., high flow nasal cannula, bilevel positive airway pressure, oxygen therapy) .
Time to Invasive Mechanical VentilationFrom the start of infusion to Day 60 Follow-upTime in hours from the initiation of the treatment until intubation for invasive mechanical ventilation is required.
Systolic Blood PressureDay 1Systolic blood pressure measured in mmHg
Diastolic Blood PressureDay 1Diastolic blood pressure measured in mmHg
Mean Arterial PressureDay 1Mean arterial pressure measured in mmHg

Secondary

MeasureTime frameDescription
Duration of HospitalisationFrom admission to hospital until discharge or deathLength of hospital stay (days)
Blood Levels of ArgininePlasma levels of arginine at 0, 2 and 12 hours, and 2, 4, 6, 8, 10 days after initiation of treatmentPlasma levels of arginine
Overall Duration of Mechanical VentilationFrom the start of infusion to Day 60 Follow-upTotal time on any mechanical ventilation, invasive mechanical ventilation, non-invasive mechanical ventilation and nasal cannula
Number of Patients Requiring IntubationFrom the start of infusion to Day 60 Follow-upPercentage of patients requiring any mechanical ventilation, invasive mechanical ventilation and non-invasive mechanical ventilation.
Blood Levels of CitrullinePlasma levels of citrulline at 0, 2 and 12 hours, and 2, 4, 6, 8, 10 days after initiation of treatmentPlasma levels of citrulline
Evaluate the Effect of Intravenous L-Citrulline Compared to Placebo as Measured by the Total Length of All Mechanical VentilationDay 1 through Day 60 Follow UpTotal length of time of any mechanical ventilation
Evaluate the Effect of IV L-Citrulline to Placebo for Hospital All Cause MortalityDay 1 through day 12To evaluate the effect of intravenous L-Citrulline compared to placebo on Hospital all-cause mortality
Percentage of Patients Admitted to Intensive CareDay 1 through Day 12 (DC)
Duration of Intensive Care Unit (ICU) StayFrom admission to ICU until discharge or deathLength of ICU stay (days)

Countries

United States

Participant flow

Participants by arm

ArmCount
IV L-Citrulline (Turnobi) Arm
Patients randomized to citrulline will receive an initial intravenous bolus of 20 mg/kg (to a maximum of 1500 mg) L-citrulline over 10 minutes. The study solution will be prepared as a 5% isotonic solution (50 mg/mL) in 5% dextrose water. Immediately after the initial bolus, a continuous intravenous infusion of L-citrulline at 9 mg/kg (max 700 mg) per hour will be administered through a dedicated intravenous line or port of a multi-lumen catheter. L-Citrulline: L-Citrulline (Turnobi) for Injection. Patients will receive an initial bolus of 20 mg/kg (maximum 1500 mg), followed by study infusion of 9 mg/kg per hour (maximum 700mg) for up to 10 days.
33
Placebo Arm
Patients randomized to placebo arm will receive an infusion of 5% dextrose water matched for volume and color to the citrulline infusion. The placebo infusion will consist of an initial iv bolus (up to 30 mL) over 10 minutes followed by a continuous infusion of 5% dextrose water (about 15 mL/hr). The initial bolus and subsequent infusion will be administered through a dedicated intravenous line or port of a multi-lumen catheter. Placebo: Patients randomized to placebo will receive equal volume bolus and study infusion of 5% dextrose water for a maximum of 10 days.
32
Total65

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event21
Overall StudyDeath25
Overall StudyLost to Follow-up10
Overall StudyOther10
Overall StudyProtocol Violation01
Overall StudySponsor Decision10
Overall StudyWithdrawal by Subject42

Baseline characteristics

CharacteristicIV L-Citrulline (Turnobi) ArmPlacebo ArmTotal
Age, Continuous50.30 years
STANDARD_DEVIATION 11.04
51.13 years
STANDARD_DEVIATION 10.34
50.71 years
STANDARD_DEVIATION 10.63
Age, Customized
18-49 years
13 Participants12 Participants25 Participants
Age, Customized
50-65 years
20 Participants20 Participants40 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants2 Participants5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
29 Participants26 Participants55 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants4 Participants5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
18 Participants17 Participants35 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
2 Participants3 Participants5 Participants
Race (NIH/OMB)
White
12 Participants12 Participants24 Participants
Sex: Female, Male
Female
16 Participants9 Participants25 Participants
Sex: Female, Male
Male
17 Participants23 Participants40 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
2 / 335 / 32
other
Total, other adverse events
11 / 3311 / 32
serious
Total, serious adverse events
6 / 3310 / 32

Outcome results

Primary

Diastolic Blood Pressure

Diastolic blood pressure measured in mmHg

Time frame: Day 1

Population: Patients in the safety population with measurement(s) of diastolic blood pressure

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmDiastolic Blood Pressure73.58 Millimeters of mercuryStandard Deviation 10.06
Placebo ArmDiastolic Blood Pressure79.74 Millimeters of mercuryStandard Deviation 13.13
Primary

Mean Arterial Pressure

Mean arterial pressure measured in mmHg

Time frame: Day 1

Population: Patients in the safety population with measurement(s) of mean arterial blood pressure

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmMean Arterial Pressure87.58 Millimeters of mercuryStandard Deviation 10.03
Placebo ArmMean Arterial Pressure94.30 Millimeters of mercuryStandard Deviation 13.49
Primary

Systolic Blood Pressure

Systolic blood pressure measured in mmHg

Time frame: Day 1

Population: Patients in the safety population with measurement(s) of systolic blood pressure

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmSystolic Blood Pressure118.63 Millimeters of mercuryStandard Deviation 14.69
Placebo ArmSystolic Blood Pressure130.19 Millimeters of mercuryStandard Deviation 15.71
Primary

Time to Invasive Mechanical Ventilation

Time in hours from the initiation of the treatment until intubation for invasive mechanical ventilation is required.

Time frame: From the start of infusion to Day 60 Follow-up

Population: Patients in the Intent-to-treat population requiring intubation for invasive mechanical ventilation.

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmTime to Invasive Mechanical Ventilation290.01 HoursStandard Deviation 254.31
Placebo ArmTime to Invasive Mechanical Ventilation148.07 HoursStandard Deviation 108.08
p-value: 0.28595% CI: [0.13, 1.83]Log Rank
p-value: 0.47195% CI: [0.15, 2.41]Regression, Logistic
Primary

Time to Non-invasive/Invasive Mechanical Ventilation

Time in hours from the initiation of the treatment until mechanical ventilation is required, whether non-invasive (e.g., high flow nasal cannula, bilevel positive airway pressure, oxygen therapy) or invasive (i.e., requiring intubation).

Time frame: From the start of infusion to Day 60 Follow-up

Population: Patients in the Intent-to-treat population that required invasive or non-invasive ventilation.

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmTime to Non-invasive/Invasive Mechanical Ventilation96.65 HoursStandard Deviation 143.73
Placebo ArmTime to Non-invasive/Invasive Mechanical Ventilation70.49 HoursStandard Deviation 62.44
p-value: 0.78295% CI: [0.45, 2.86]Log Rank
p-value: 0.66895% CI: [0.46, 3.4]Regression, Logistic
Primary

Time to Non-invasive Mechanical Ventilation

Time in hours from the initiation of the treatment until non-invasive mechanical ventilation is required (e.g., high flow nasal cannula, bilevel positive airway pressure, oxygen therapy) .

Time frame: From the start of infusion to Day 60 Follow-up

Population: Patients in the Intent-to-treat population requiring non-invasive mechanical ventilation.

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmTime to Non-invasive Mechanical Ventilation66.17 HoursStandard Deviation 105.4
Placebo ArmTime to Non-invasive Mechanical Ventilation105.70 HoursStandard Deviation 108.9
p-value: 0.3695% CI: [0.59, 4.22]Log Rank
Secondary

Blood Levels of Arginine

Plasma levels of arginine

Time frame: Plasma levels of arginine at 0, 2 and 12 hours, and 2, 4, 6, 8, 10 days after initiation of treatment

Population: Patients with at least 1 measurement of plasma arginine

ArmMeasureGroupValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmBlood Levels of ArginineHour 12128.11 µmol/LStandard Deviation 41.3
IV L-Citrulline (Turnobi) ArmBlood Levels of ArginineDay 8167.64 µmol/LStandard Deviation 82.5
IV L-Citrulline (Turnobi) ArmBlood Levels of ArginineDay 10160.02 µmol/LStandard Deviation 83.39
IV L-Citrulline (Turnobi) ArmBlood Levels of ArginineDay 4152.00 µmol/LStandard Deviation 66.7
IV L-Citrulline (Turnobi) ArmBlood Levels of ArginineDay 6169.33 µmol/LStandard Deviation 113.62
IV L-Citrulline (Turnobi) ArmBlood Levels of ArginineDay 2142.02 µmol/LStandard Deviation 54.51
IV L-Citrulline (Turnobi) ArmBlood Levels of ArginineHour 067.6 µmol/LStandard Deviation 28.27
IV L-Citrulline (Turnobi) ArmBlood Levels of ArginineHour 292.57 µmol/LStandard Deviation 30.84
Placebo ArmBlood Levels of ArginineHour 067.88 µmol/LStandard Deviation 29.51
Placebo ArmBlood Levels of ArginineDay 670.78 µmol/LStandard Deviation 19.46
Placebo ArmBlood Levels of ArginineHour 1275.7 µmol/LStandard Deviation 24.54
Placebo ArmBlood Levels of ArginineDay 881.79 µmol/LStandard Deviation 32.28
Placebo ArmBlood Levels of ArginineDay 282.19 µmol/LStandard Deviation 26.33
Placebo ArmBlood Levels of ArginineDay 1083.9 µmol/LStandard Deviation 37.36
Placebo ArmBlood Levels of ArginineHour 271.51 µmol/LStandard Deviation 29.15
Placebo ArmBlood Levels of ArginineDay 479.66 µmol/LStandard Deviation 22.84
Secondary

Blood Levels of Citrulline

Plasma levels of citrulline

Time frame: Plasma levels of citrulline at 0, 2 and 12 hours, and 2, 4, 6, 8, 10 days after initiation of treatment

Population: All patients with at least 1 plasma citrulline measurement

ArmMeasureGroupValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmBlood Levels of CitrullineHour 024.64 µmol/LStandard Deviation 25.91
IV L-Citrulline (Turnobi) ArmBlood Levels of CitrullineHour 21094.41 µmol/LStandard Deviation 2463.97
IV L-Citrulline (Turnobi) ArmBlood Levels of CitrullineHour 12997.61 µmol/LStandard Deviation 2133.07
IV L-Citrulline (Turnobi) ArmBlood Levels of CitrullineDay 2278.2 µmol/LStandard Deviation 353.32
IV L-Citrulline (Turnobi) ArmBlood Levels of CitrullineDay 4626.33 µmol/LStandard Deviation 1562.95
IV L-Citrulline (Turnobi) ArmBlood Levels of CitrullineDay 6185.14 µmol/LStandard Deviation 68.63
IV L-Citrulline (Turnobi) ArmBlood Levels of CitrullineDay 8192.72 µmol/LStandard Deviation 127.72
IV L-Citrulline (Turnobi) ArmBlood Levels of CitrullineDay 10206.26 µmol/LStandard Deviation 135.94
Placebo ArmBlood Levels of CitrullineDay 1024.56 µmol/LStandard Deviation 11.46
Placebo ArmBlood Levels of CitrullineHour 018.08 µmol/LStandard Deviation 13.7
Placebo ArmBlood Levels of CitrullineDay 420.53 µmol/LStandard Deviation 15.84
Placebo ArmBlood Levels of CitrullineHour 218.39 µmol/LStandard Deviation 14.08
Placebo ArmBlood Levels of CitrullineDay 824.84 µmol/LStandard Deviation 9.64
Placebo ArmBlood Levels of CitrullineHour 1221.84 µmol/LStandard Deviation 16.14
Placebo ArmBlood Levels of CitrullineDay 620.96 µmol/LStandard Deviation 10.16
Placebo ArmBlood Levels of CitrullineDay 224.68 µmol/LStandard Deviation 27.57
Secondary

Duration of Hospitalisation

Length of hospital stay (days)

Time frame: From admission to hospital until discharge or death

Population: Intent-to-treat

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmDuration of Hospitalisation10.61 DaysStandard Deviation 12.74
Placebo ArmDuration of Hospitalisation11.88 DaysStandard Deviation 14.29
p-value: 0.83495% CI: [0.52, 2.25]Negative binomial analysis
Secondary

Duration of Intensive Care Unit (ICU) Stay

Length of ICU stay (days)

Time frame: From admission to ICU until discharge or death

Population: Intent-to-treat

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmDuration of Intensive Care Unit (ICU) Stay14.83 DaysStandard Deviation 12.29
Placebo ArmDuration of Intensive Care Unit (ICU) Stay17.31 DaysStandard Deviation 18.87
p-value: 0.70695% CI: [0.43, 3.44]Zero-inflated negative binomial analyses
p-value: 0.78895% CI: [0.49, 2.56]Zero-inflated negative binomial analyses
Secondary

Evaluate the Effect of Intravenous L-Citrulline Compared to Placebo as Measured by the Total Length of All Mechanical Ventilation

Total length of time of any mechanical ventilation

Time frame: Day 1 through Day 60 Follow Up

Population: Patients in the Intent-to-treat population requiring mechanical ventilation

ArmMeasureValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmEvaluate the Effect of Intravenous L-Citrulline Compared to Placebo as Measured by the Total Length of All Mechanical Ventilation270.91 HoursStandard Deviation 304.03
Placebo ArmEvaluate the Effect of Intravenous L-Citrulline Compared to Placebo as Measured by the Total Length of All Mechanical Ventilation451.87 HoursStandard Deviation 503.68
p-value: 0.66895% CI: [0.3, 2.2]Zero-inflated negative binomial analyses
p-value: 0.43795% CI: [0.23, 1.9]Zero-inflated negative binomial analyses
Secondary

Evaluate the Effect of IV L-Citrulline to Placebo for Hospital All Cause Mortality

To evaluate the effect of intravenous L-Citrulline compared to placebo on Hospital all-cause mortality

Time frame: Day 1 through day 12

Population: Intent-to-treat

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IV L-Citrulline (Turnobi) ArmEvaluate the Effect of IV L-Citrulline to Placebo for Hospital All Cause Mortality2 Participants
Placebo ArmEvaluate the Effect of IV L-Citrulline to Placebo for Hospital All Cause Mortality5 Participants
p-value: 0.23295% CI: [0.06, 1.97]Regression, Logistic
Secondary

Number of Patients Requiring Intubation

Percentage of patients requiring any mechanical ventilation, invasive mechanical ventilation and non-invasive mechanical ventilation.

Time frame: From the start of infusion to Day 60 Follow-up

Population: Intent-to-treat

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
IV L-Citrulline (Turnobi) ArmNumber of Patients Requiring IntubationNon-invasive/invasive mechanical ventilation14 Participants
IV L-Citrulline (Turnobi) ArmNumber of Patients Requiring IntubationNon-invasive mechanical ventilation12 Participants
IV L-Citrulline (Turnobi) ArmNumber of Patients Requiring IntubationInvasive mechanical ventilation4 Participants
Placebo ArmNumber of Patients Requiring IntubationNon-invasive/invasive mechanical ventilation12 Participants
Placebo ArmNumber of Patients Requiring IntubationNon-invasive mechanical ventilation10 Participants
Placebo ArmNumber of Patients Requiring IntubationInvasive mechanical ventilation6 Participants
Secondary

Overall Duration of Mechanical Ventilation

Total time on any mechanical ventilation, invasive mechanical ventilation, non-invasive mechanical ventilation and nasal cannula

Time frame: From the start of infusion to Day 60 Follow-up

Population: Intent-to-treat

ArmMeasureGroupValue (MEAN)Dispersion
IV L-Citrulline (Turnobi) ArmOverall Duration of Mechanical VentilationTotal time on mechanical ventilation239.31 HoursStandard Deviation 243.08
IV L-Citrulline (Turnobi) ArmOverall Duration of Mechanical VentilationTotal time of non-invasive mechanical ventilation224.64 HoursStandard Deviation 254.22
IV L-Citrulline (Turnobi) ArmOverall Duration of Mechanical VentilationTotal time of invasive mechanical ventilation274.27 HoursStandard Deviation 158.86
IV L-Citrulline (Turnobi) ArmOverall Duration of Mechanical VentilationTotal time on Nasal Cannula239.31 HoursStandard Deviation 243.08
Placebo ArmOverall Duration of Mechanical VentilationTotal time on Nasal Cannula222.08 HoursStandard Deviation 370.9
Placebo ArmOverall Duration of Mechanical VentilationTotal time on mechanical ventilation222.08 HoursStandard Deviation 370.9
Placebo ArmOverall Duration of Mechanical VentilationTotal time of invasive mechanical ventilation538.28 HoursStandard Deviation 469.21
Placebo ArmOverall Duration of Mechanical VentilationTotal time of non-invasive mechanical ventilation219.27 HoursStandard Deviation 309.4
Secondary

Percentage of Patients Admitted to Intensive Care

Time frame: Day 1 through Day 12 (DC)

Population: Intent-to-treat

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IV L-Citrulline (Turnobi) ArmPercentage of Patients Admitted to Intensive Care12 Participants
Placebo ArmPercentage of Patients Admitted to Intensive Care13 Participants
p-value: 0.72995% CI: [0.31, 2.28]Regression, Logistic

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026