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Safety and Pharmacokinetics of Ifetroban in Hepatorenal Syndrome Patients

A Multi-Center, Double-Blind, Randomized, Controlled Study to Determine the Safety and Pharmacokinetics of Ifetroban Injection in Hepatorenal Syndrome

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01436500
Enrollment
55
Registered
2011-09-19
Start date
2011-10-31
Completion date
2015-07-31
Last updated
2017-03-01

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

Conditions

Hepatorenal Syndrome

Keywords

Hepatorenal Syndrome, HRS, ifetroban

Brief summary

A study of ifetroban in the treatment of hepatorenal syndrome (HRS) in hospitalized adult patients to assess the safety and pharmacokinetics of 3 days of intravenous ifetroban.

Interventions

DRUGIfetroban Injection

Ifetroban sodium injectable, diluted in sterile water with 5% dextrose

DRUGPlacebo

Sterile water with 5% Dextrose

Sponsors

Cumberland Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

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

Inclusion criteria

1. Chronic liver disease, defined as cirrhosis with ascites based on clinical findings (biopsy not necessary). 2. Subjects with either Type 1 or Type 2 HRS defined in a and b below: a. Type 1: i. At least a doubling of the serum creatinine to a minimum of 220 µmol/L (2.5 mg/dL) at enrollment, occurring over a period of less than 14 days, OR ii. A 50% or greater reduction in the estimated glomerular filtration rate (GFR - calculated by the method of Cockcroft-Gault) to below 20 mL/min at enrollment occurring over a period of less than 14 days. iii. A projected doubling of serum creatinine to a minimum of 2.5 mg/dL, expected to occur in less than 14 days based on the rate of change observed. b. Type 2: defined as at least a 33% reduction in creatinine clearance occurring over a period of greater than 2 weeks, with a serum creatinine (SCr) \> 133µmol/L (1.5 mg/dL). 3. Oliguria occurring within 48 hours prior to the first administration CTM. Oliguria is defined as an average urine output of \< 35 mL/hr (measured for a minimum of 4 hours) under either of the following circumstances: a. When measured central venous pressure (CVP) \> 12 mmHg, OR b. following a fluid challenge consisting of either: i. at minimum 20 mL/kg isotonic fluid (e.g. any combination of 5% albumin, normal saline, blood or blood products) given over no more than 6 hours ii. at minimum 1 g/kg of hypertonic fluid (e.g. 25% albumin) given over no more than 24 hours iii. an equivalent combination of 3.b.i and 3.b.ii

Exclusion criteria

1. History of allergy or hypersensitivity to ifetroban 2. Pregnant or nursing 3. Less than 18 years of age 4. Serum creatinine at the time of enrollment greater than or equal to 5.0 mg/dL 5. Platelet count at screening less than 30 x 10\^3 platelets/µL 6. Anticipated of planned need for dialysis within 5 days of first CTM dose. 7. Active gastrointestinal hemorrhage (where active is defined as evidence of bleeding within 48 hours of the first dose of CTM) 8. Evidence of current (within past 30 days) obstructive (post-renal) or intrinsic renal disease \[including but not limited to: acute tubular necrosis (ATN), glomerular diseases/glomerulonephritis, acute interstitial nephritis (AIN), known urinary obstruction, proteinuria \> 500 mg/day, microhematuria (\> 50 RBCs/high power field), abnormal renal ultrasound, fractional excretion of sodium (FeNa) \> 2.0%, any urinary casts other than hyaline. 9. Current or recent (within the preceding 5 days) treatment with nephrotoxic drugs including but not limited to: NSAIDs (prior 48 hours), angiotensin converting enzyme (ACE) inhibitors, angiotensin receptor blockers (ARB), calcineurin inhibitors (cyclosporine, tacrolimus), aminoglycosides, amphotericin B, antiretrovirals and antivirals (adefovir, cidofovir, tenofovir, acyclovir, indinavir), cisplatin, methotrexate, cyclosporine, amphotericin B contrast agents, foscarnet, zoledronate, etc. 10. Presence of shock defined as hypotension, with a mean arterial pressure less than 50 mmHG. 11. New York Heart Association class 3 or 4 heart failure. 12. Presence of hepatocellular carcinoma not transplantable by Milan criteria 13. Cardiopulmonary arrest without full recovery of mental status 14. Moribund and death expected within five days 15. Bacterial or fungal infections which have been unresponsive to at least 24 hours of appropriate antimicrobial therapy 16. Burns \> 30% body surface area 17. Exposed to investigational drugs within 30 days before 1st CTM administration. 18. Inability to understand the requirements of the study. (Subjects must be willing to provide written informed consent or consent of legally recognized representative, as evidenced by signature on an informed consent document approved by an Institutional Review Board \[IRB\], and agree to abide by the study restrictions. If the subject is incapacitated, informed consent will be sought from a legally recognized representative). 19. Refusal to provide written authorization for use and disclosure of protected health information. 20. Be otherwise unsuitable for the study, in the opinion of the Investigator.

Design outcomes

Primary

MeasureTime frameDescription
Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronide3 daysPlasma concentrations of ifetroban and its major active metabolite were measured at Baseline and Study Hours 1, 2, 4, 8, 12, 24, 48, 49, 50, 52, 56, 60, and 72 to determine the Pharmacokinetic parameters.
Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of Treatment3 daysPlasma concentrations of ifetroban and its primary active metabolite were measured at Baseline and Study Hours 1, 2, 4, 8, 12, 24, 48, 49, 50, 52, 56, 60, and 72 to determine the Pharmacokinetic parameters.
Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of Treatment3 daysPlasma concentrations of ifetroban and it's major active metabolite were measured at Baseline and Study Hours 1, 2, 4, 8, 12, 24, 48, 49, 50, 52, 56, 60, and 72 to determine the Pharmacokinetic parameters.

Secondary

MeasureTime frameDescription
Safety: Day 28 Mortality28 days
Change in 24-hour Urine VolumeBaseline to Hour 96The volume of urine collected in a 24-hour post-treatment period minus the volume collected in a 24-hour pre-treatment period.
Percentage of Patients Achieving a Treatment-period Serum Creatinine Reduction Below 1.5 mg/dLDay 0 through Day 5
The Percentage of Patients Achieving a Reduction of Creatinine Clearance to Below Baseline on Two Consecutive Daily MeasurementsDay 0 to Day 5

Countries

India, United States

Participant flow

Participants by arm

ArmCount
Ifetroban Injection
5, 15, 50, or 150 mg Ifetroban Injection administered IV over 60 minutes once daily x 3 days
42
Placebo
5% Dextrose in Water administered IV over 60 minutes once daily x 3 days
13
Total55

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyAdverse Event02201
Overall StudyDeath10000
Overall Studydiscontinued study drug10000
Overall Studyinitiation of dialysis00001
Overall Studyliver transplant10000
Overall StudyOther01010
Overall StudyPhysician Decision00100
Overall StudyWithdrawal by Subject00202

Baseline characteristics

CharacteristicPlaceboTotalIfetroban Injection
Age, Continuous56 years
STANDARD_DEVIATION 6.4
57 years
STANDARD_DEVIATION 9
57 years
STANDARD_DEVIATION 9.7
Ethnicity (NIH/OMB)
Hispanic or Latino
6 Participants14 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants41 Participants34 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
1 Participants4 Participants3 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 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
12 Participants49 Participants37 Participants
Sex: Female, Male
Female
5 Participants22 Participants17 Participants
Sex: Female, Male
Male
8 Participants33 Participants25 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
7 / 422 / 13
other
Total, other adverse events
25 / 425 / 13
serious
Total, serious adverse events
21 / 428 / 13

Outcome results

Primary

Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronide

Plasma concentrations of ifetroban and its major active metabolite were measured at Baseline and Study Hours 1, 2, 4, 8, 12, 24, 48, 49, 50, 52, 56, 60, and 72 to determine the Pharmacokinetic parameters.

Time frame: 3 days

Population: Patients from which a full series of plasma samples were obtained from baseline through Hour 72 were included in the calculations of the PK parameters. Where the number of participants analyzed in an arm is lower than the number exposed for that arm, the patients with missing data did not contribute to the calculation of the PK parameters.

ArmMeasureGroupValue (MEAN)Dispersion
5 mg Ifetroban, Type 1Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban36.0 hours
5 mg Ifetroban, Type 1Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban acylglucuronide17.1 hoursStandard Deviation 17.5
5 mg Ifetroban, Type 2Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban11.9 hoursStandard Deviation 18.4
5 mg Ifetroban, Type 2Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban acylglucuronide14.7 hoursStandard Deviation 19.9
15 mg Ifetroban, Type 1Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban15.7 hoursStandard Deviation 16.7
15 mg Ifetroban, Type 1Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban acylglucuronide22.1 hoursStandard Deviation 9.5
15 mg Ifetroban, Type 2Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban10.5 hoursStandard Deviation 8.6
15 mg Ifetroban, Type 2Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban acylglucuronide18.6 hoursStandard Deviation 10.9
50 mg Ifetroban, Type 1Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban18.1 hoursStandard Deviation 14.8
50 mg Ifetroban, Type 1Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban acylglucuronide26.4 hoursStandard Deviation 22
50 mg Ifetroban, Type 2Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban13.5 hoursStandard Deviation 8.2
50 mg Ifetroban, Type 2Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban acylglucuronide15.2 hoursStandard Deviation 9.5
150 mg Ifetroban, Type 2Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban17.4 hoursStandard Deviation 11.7
150 mg Ifetroban, Type 2Half-life (T-1/2) of Ifetroban and Ifetroban Acylglucuronidehalf-life ifetroban acylglucuronide12.6 hoursStandard Deviation 12.4
Primary

Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of Treatment

Plasma concentrations of ifetroban and it's major active metabolite were measured at Baseline and Study Hours 1, 2, 4, 8, 12, 24, 48, 49, 50, 52, 56, 60, and 72 to determine the Pharmacokinetic parameters.

Time frame: 3 days

Population: Patients from which a full series of plasma samples were obtained from baseline through Hour 72 were included in the calculations of the PK parameters. Where the number of participants analyzed in an arm is lower than the number exposed for that arm, the patients with missing data did not contribute to the calculation of the PK parameters.

ArmMeasureGroupValue (MEAN)Dispersion
5 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban1.8 ng/mLStandard Deviation 4.1
5 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban Acylglucuronide384 ng/mLStandard Deviation 103
5 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban Acylglucuronide78.4 ng/mLStandard Deviation 56.7
5 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban483 ng/mLStandard Deviation 445
5 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban Acylglucuronide41.4 ng/mLStandard Deviation 33.1
5 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban3.4 ng/mLStandard Deviation 4
5 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban Acylglucuronide448 ng/mLStandard Deviation 101
5 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban251 ng/mLStandard Deviation 107
15 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban14.1 ng/mLStandard Deviation 22.6
15 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban Acylglucuronide241.9 ng/mLStandard Deviation 89
15 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban581 ng/mLStandard Deviation 114
15 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban Acylglucuronide912 ng/mLStandard Deviation 194
15 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban785 ng/mLStandard Deviation 225
15 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban23.5 ng/mLStandard Deviation 33.7
15 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban Acylglucuronide200.2 ng/mLStandard Deviation 114.3
15 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban Acylglucuronide1214 ng/mLStandard Deviation 255
50 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban1666 ng/mLStandard Deviation 1478
50 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban Acylglucuronide4737 ng/mLStandard Deviation 543
50 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban Acylglucuronide778.0 ng/mLStandard Deviation 583.2
50 mg Ifetroban, Type 1Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban43.3 ng/mLStandard Deviation 36.2
50 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban2599 ng/mLStandard Deviation 838
50 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban Acylglucuronide4666 ng/mLStandard Deviation 1748
50 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban Acylglucuronide632.9 ng/mLStandard Deviation 302.9
50 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban51.1 ng/mLStandard Deviation 44.5
150 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban Acylglucuronide10447 ng/mLStandard Deviation 2113
150 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban150.0 ng/mLStandard Deviation 115.5
150 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMaximum Concentration Ifetroban6790 ng/mLStandard Deviation 2777
150 mg Ifetroban, Type 2Pharmacokinetic Parameters (Concentration) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentMinimum Concentration Ifetroban Acylglucuronide1755.0 ng/mLStandard Deviation 792.4
Primary

Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of Treatment

Plasma concentrations of ifetroban and its primary active metabolite were measured at Baseline and Study Hours 1, 2, 4, 8, 12, 24, 48, 49, 50, 52, 56, 60, and 72 to determine the Pharmacokinetic parameters.

Time frame: 3 days

Population: Patients from which a full series of plasma samples were obtained from baseline through Hour 72 were included in the calculations of the PK parameters. Where the number of participants analyzed in an arm is lower than the number exposed for that arm, the patients with missing data did not contribute to the calculation of the PK parameters.

ArmMeasureGroupValue (MEAN)Dispersion
5 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban area under the curve (AUC) to 24 hours964 ng*hr/mLStandard Deviation 683
5 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban AUC to infinity2476 ng*hr/mL
5 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to 24 hours to4371 ng*hr/mLStandard Deviation 2050
5 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to infinity8440 ng*hr/mLStandard Deviation 8730
5 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to infinity6128 ng*hr/mLStandard Deviation 3721
5 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to 24 hours to4145 ng*hr/mLStandard Deviation 781
5 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban area under the curve (AUC) to 24 hours779 ng*hr/mLStandard Deviation 326
5 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban AUC to infinity906 ng*hr/mLStandard Deviation 481
15 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to 24 hours to12192 ng*hr/mLStandard Deviation 2102
15 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban AUC to infinity2959 ng*hr/mLStandard Deviation 1941
15 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban area under the curve (AUC) to 24 hours2025 ng*hr/mLStandard Deviation 639
15 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to infinity21962 ng*hr/mLStandard Deviation 7404
15 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban area under the curve (AUC) to 24 hours2463 ng*hr/mLStandard Deviation 1497
15 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban AUC to infinity3259 ng*hr/mLStandard Deviation 2866
15 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to 24 hours to12038 ng*hr/mLStandard Deviation 2734
15 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to infinity29857 ng*hr/mLStandard Deviation 27688
50 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban area under the curve (AUC) to 24 hours5151 ng*hr/mLStandard Deviation 3579
50 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to infinity86457 ng*hr/mLStandard Deviation 44928
50 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban AUC to infinity6505 ng*hr/mLStandard Deviation 4032
50 mg Ifetroban, Type 1Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to 24 hours to46455 ng*hr/mLStandard Deviation 2906
50 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban AUC to infinity8204 ng*hr/mLStandard Deviation 3461
50 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban area under the curve (AUC) to 24 hours6634 ng*hr/mLStandard Deviation 2166
50 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to 24 hours to42051 ng*hr/mLStandard Deviation 18567
50 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to infinity61673 ng*hr/mLStandard Deviation 25672
150 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to 24 hours to109915 ng*hr/mLStandard Deviation 32895
150 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban area under the curve (AUC) to 24 hours18612 ng*hr/mLStandard Deviation 8408
150 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban AUC to infinity24657 ng*hr/mLStandard Deviation 13425
150 mg Ifetroban, Type 2Pharmacokinetic Parameters (Exposure) of Ifetroban and Ifetroban Acylglucuronide After Three Days of TreatmentIfetroban acylglucuronide AUC to infinity144951 ng*hr/mLStandard Deviation 61311
Secondary

Change in 24-hour Urine Volume

The volume of urine collected in a 24-hour post-treatment period minus the volume collected in a 24-hour pre-treatment period.

Time frame: Baseline to Hour 96

Population: Data were missing for the post-treatment urine volume measurements in 9 of 42 ifetroban patients and 3 of 13 placebo patients so they were excluded from the analysis.

ArmMeasureValue (MEAN)Dispersion
5 mg Ifetroban, Type 1Change in 24-hour Urine Volume267.3 mLStandard Deviation 613.3
5 mg Ifetroban, Type 2Change in 24-hour Urine Volume-118.5 mLStandard Deviation 452.2
Secondary

Percentage of Patients Achieving a Treatment-period Serum Creatinine Reduction Below 1.5 mg/dL

Time frame: Day 0 through Day 5

ArmMeasureValue (NUMBER)
5 mg Ifetroban, Type 1Percentage of Patients Achieving a Treatment-period Serum Creatinine Reduction Below 1.5 mg/dL21 percentage of participants
5 mg Ifetroban, Type 2Percentage of Patients Achieving a Treatment-period Serum Creatinine Reduction Below 1.5 mg/dL15 percentage of participants
Secondary

Safety: Day 28 Mortality

Time frame: 28 days

ArmMeasureValue (NUMBER)
5 mg Ifetroban, Type 1Safety: Day 28 Mortality17 percentage of participants
5 mg Ifetroban, Type 2Safety: Day 28 Mortality15 percentage of participants
Secondary

The Percentage of Patients Achieving a Reduction of Creatinine Clearance to Below Baseline on Two Consecutive Daily Measurements

Time frame: Day 0 to Day 5

ArmMeasureValue (NUMBER)
5 mg Ifetroban, Type 1The Percentage of Patients Achieving a Reduction of Creatinine Clearance to Below Baseline on Two Consecutive Daily Measurements62 percentage of participants
5 mg Ifetroban, Type 2The Percentage of Patients Achieving a Reduction of Creatinine Clearance to Below Baseline on Two Consecutive Daily Measurements77 percentage of participants

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