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Feasibility of 5% Albumin Compared With Balanced Crystalloid, as Intravenous Fluid Resuscitation in Adult Patients With Sepsis, Presenting as an Emergency to Hospital

Feasibility of 5% Albumin Compared With Balanced Crystalloid, as Intravenous Fluid Resuscitation in Adult Patients With Sepsis, Presenting as an Emergency to Hospital: ABC Sepsis Trial

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04540094
Acronym
ABC Sepsis
Enrollment
300
Registered
2020-09-07
Start date
2021-06-01
Completion date
2023-04-30
Last updated
2024-10-04

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

Conditions

Sepsis

Keywords

Sepsis, Emergency Care, Albumin, Crystalloid, Fluid, Resuscitation

Brief summary

The aim of this research study is to compare two different fluids (Human Albumin Solution (HAS) and Balanced Crystalloid that are given via a drip to patients with severe infection (sepsis). The investigators plan to see which fluid is better, and to see if they have a role in improving a patient's recovery time, reducing complications and the length of time they stay in hospital. This study plans to find out if there is evidence that one fluid is better overall to determine the need for a subsequent definitive trial.

Detailed description

This trial will be an open label two-arm, multicentre, pragmatic, parallel group randomised trial of adult patients with community acquired sepsis recruited from the Emergency Department and Medical and Surgical Assessment Units across \ 10 UK NHS Hospitals. The treatment phase will be the first 6 hours following randomisation. 30-day and 90-day follow up will be conducted using routine data only. The exception to this will be the first 50 patients enrolled in the study, Health Related Quality of Life (HRQoL) will be measured using the EQ-5D-5L at baseline, 7 days and at 180 days. At baseline, the participant or their relative will be asked to recall the quality of life 4 weeks prior to the index hospital admission. Questionnaires will be administered by direct patient completion or, postal or email survey with telephone follow up for non-responders after two mailings two weeks apart.

Interventions

DRUGHuman albumin

Any preparation of 5% Human Albumin Solution which has marketing authorisation in the UK to be used for this indication and is stocked by local hospital pharmacies at the participating sites, may be prescribed in this study

Any preparation of intravenous balanced crystalloid which has marketing authorisation in the UK to be used for this indication and is stocked by local hospital pharmacies at the participating sites, may be prescribed in this study.

Sponsors

University of Edinburgh
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Open label two-arm, multicentre, pragmatic, parallel group randomised trial

Eligibility

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

Inclusion criteria

Adult patients (18 years or older) who present to UK NHS hospitals with community acquired sepsis meeting all of the 4 criteria: 1. Clinically suspected or proven infection resulting in principal reason for acute illness; 2. NEWS score ≥5 (or NEWS2 if adopted in recruitment site); 3. Hospital presentation within last 12hrs; and 4. Clinician decision has been made that immediate (within 1 hour) intravenous fluid resuscitation is needed.

Exclusion criteria

1. \>1 litre of intravenous crystalloid fluid or any intravenous HAS administered prior to eligibility assessment; 2. Requirement for immediate surgery (within one hour of eligibility assessment); 3. Chronic renal replacement therapy; 4. Known allergy/adverse reaction to HAS; 5. Balanced crystalloid or HAS not available; 6. Known adverse reaction to blood products; 7. Palliation/end of life care (explicit decision by patient/family/carers in conjunction with clinical team that any active treatment beyond symptomatic relief is not appropriate); 8. Religious beliefs precluding HAS administration; 9. Previous recruitment in the trial; 10. Known recent severe traumatic brain injury (within 3 months); 11. Patients with permanent incapacity; 12. Known recruitment in another CTIMP studies within the last 30 days where co-enrolment has not been agreed.

Design outcomes

Primary

MeasureTime frameDescription
Recruitment RateApprox 1 yearWe measured the recruitment rate to assess deliverability. We aimed to recruit 300 participants in approximately 1 year in a 1:1 ratio into each treatment arm.
30-day Mortality30 daysAssessment of how many participants in each arm died after 30 days to determine the effect size between the treatment groups.

Secondary

MeasureTime frameDescription
Number of Patients Who Receive Any Other Fluid Apart From Intervention or Control in First 6 Hrs After Recruitment6 hoursFeasibility Outcome- number of patients who receive any other fluid apart from intervention or control in first 6 hrs after recruitment
Time to Start of In-hospital Intravenous FluidsFrom time of Randomisation until fluid first being administered measured up to 6 hours.Feasibility Outcome- Time to start of in-hospital intravenous fluids
In-hospital MortalityFrom time of Randomisation until time of hospital discharge or death, whichever is first measured up to 90 daysSecondary Clinical Outcome
90-day Mortality90 daysSecondary Clinical Outcome
Volume of Randomised Fluid Delivered in Each Arm in the First 6hrs6 hoursSecondary Clinical Outcome- Volume of randomised fluid delivered in each arm in the first 6hrs
Length of Hospital Stay90 daysSecondary Clinical Outcome
Proportion of Patients Admitted to Critical Care (HDU/ICU)90 daysSecondary Clinical Outcome- Proportion of patients admitted to critical care (HDU/ICU)
Length of Stay in Critical Care (HDU/ICU)90 daysSecondary Clinical Outcome- Length of stay in critical care (HDU/ICU)
Number of Participants Needing Intravenous VasopressorsFrom time of Randomisation until time of hospital discharge, measured up to 90 days.Secondary Clinical Outcome-number of participants needing intravenous vasopressors
Data Completeness of Primary Outcome180 daysFeasibility Outcome assessing the number of participants who provided data for clinical primary outcome (30 day mortality)
Number of Participants Needing Invasive VentilationFrom time of Randomisation until time of hospital discharge, measured up to 90 days.Secondary Clinical Outcome- Number of participants needing invasive ventilation
Number of Patients Readmitted in First 90 Days After Discharge90 daysSecondary Clinical Outcome- Number of patients readmitted in first 90 days after discharge
Number of Patients Developing Acute Kidney Injury (AKI)7 daysAKI Defined using National Institute for Health and Care Excellence (NICE) criteria: A diagnosis of AKI may be made if there is one of the following: A rise in serum creatinine of 26 micromol/L or greater within 48 hours. A 50% or greater rise in serum creatinine known or presumed to have occurred within the past 7 days. A fall in urine output to less than 0.5 mL/kg/hour for more than 6 hours.
Number of Patients Developing Pulmonary Oedema7 daysSafety Radiology diagnosis or requirement for rescue management (new diuretic use)
Number of Patients Developing Allergy or Anaphylaxis7 daysRequirement for rescue management (antihistamines, adrenaline, intravenous fluids, steroid)
Health Related Quality of Life (EQ-5D-5L Questionnaire)baselineHealth Economic Outcomes are measured using the the 5-level EQ-5D version (EQ-5D-5L). The EQ-5D-5L descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. A high score indicates a worse outcome. The patient is asked to indicate their health state by ticking the box next to the most appropriate statement in each of the five dimensions. The digits for the five dimensions can be combined into a 5-digit number (profile) that describes the patient's health state. The EQ-5D profile can be converted to a single number between 0-1 called the EQ-5D value. These EQ-5D values to lie on between 0-1 to indicate health where 0 represents the minimum score (dead) and 1 is full health. Values less than 0 are possible for health states considered worse than dead.
Secondary Care Costs30 daysCosts will be estimated by assigning national standard unit costs to inpatient stays (critical care and general ward level), readmissions and additional high costs activities observed in the study. Baseline (pre-admission) HQoL will be estimated using age/sex matched population reference data.
Volume of Randomised Fluid Delivered in Each Arm in the First 24hrs24 hoursSecondary Clinical Outcome-Volume of randomised fluid delivered in each arm in the first 24hrs
Number of Participants Needing Renal ReplacementFrom time of Randomisation until time of hospital discharge, measured up to 90 days.Secondary Clinical Outcome- Number of participants needing renal replacement
Withdrawal From StudyApprox 1 yearFeasibility Outcomes assessing the number of participants who withdraw from study intervention and/or data collection

Countries

United Kingdom

Participant flow

Participants by arm

ArmCount
5% Human Albumin Solution
Participants allocated to the treatment arm will receive intravenous 5% Human Albumin Solution (HAS) administered as the sole intravenous fluid during the initial 6-hour resuscitation period. The clinician can deliver up to 10ml/kg in the first 3 hours using 250ml boluses of HAS based on clinical judgement, using clinical assessment supplemented by technology if that is their usual practice. This will be followed by repeat clinical assessment after each bolus (including vital signs; lactate testing). After 3 hours further HAS boluses up to 6 hours post-randomisation will be at clinical discretion and will be documented in the CRF. Patients in the albumin arm should not receive balanced crystalloid as a resuscitation fluid in the first 6 hours. Human albumin: Any preparation of 5% Human Albumin Solution which has marketing authorisation in the UK to be used for this indication and is stocked by local hospital pharmacies at the participating sites, may be prescribed in this study
150
Intravenous Balanced Crystalloid
Participant allocated to the usual care arm will receive intravenous balanced crystalloid administered as the sole intravenous fluid during the initial 6 hour resuscitation period. The clinician can deliver up to 30ml/kg in the first 3 hours using 250ml boluses of balanced crystalloid based on clinical judgement, using clinical assessment supplemented by technology if that is their usual practice. This will be followed by repeat clinical assessment after each bolus (including vital signs; lactate testing). Thereafter, further crystalloid boluses up to 6 hours will be at the discretion of the clinical team and will be documented in the CRF. Patients in the balanced crystalloid arm should not receive albumin as a resuscitation fluid in the first 6 hours. Balanced crystalloid solution: Any preparation of intravenous balanced crystalloid which has marketing authorisation in the UK to be used for this indication and is stocked by local hospital pharmacies at the participating sites, may be prescribed in this study.
150
Total300

Baseline characteristics

CharacteristicIntravenous Balanced CrystalloidTotal5% Human Albumin Solution
Age, Continuous68 years
STANDARD_DEVIATION 18
69 years
STANDARD_DEVIATION 16
70 years
STANDARD_DEVIATION 15
Lactate3 mmol/l
STANDARD_DEVIATION 2
3 mmol/l
STANDARD_DEVIATION 3
3 mmol/l
STANDARD_DEVIATION 3
National Early Warning Score (NEWS) Score8.3 units on a scale
STANDARD_DEVIATION 2.7
8.1 units on a scale
STANDARD_DEVIATION 2.5
8 units on a scale
STANDARD_DEVIATION 2.4
Race and Ethnicity Not Collected0 Participants
Sex: Female, Male
Female
70 Participants149 Participants79 Participants
Sex: Female, Male
Male
80 Participants151 Participants71 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
43 / 15032 / 150
other
Total, other adverse events
25 / 15020 / 150
serious
Total, serious adverse events
5 / 1502 / 150

Outcome results

Primary

30-day Mortality

Assessment of how many participants in each arm died after 30 days to determine the effect size between the treatment groups.

Time frame: 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin Solution30-day Mortality31 Participants
Intravenous Balanced Crystalloid30-day Mortality22 Participants
Primary

Recruitment Rate

We measured the recruitment rate to assess deliverability. We aimed to recruit 300 participants in approximately 1 year in a 1:1 ratio into each treatment arm.

Time frame: Approx 1 year

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionRecruitment Rate150 Participants
Intravenous Balanced CrystalloidRecruitment Rate150 Participants
Secondary

90-day Mortality

Secondary Clinical Outcome

Time frame: 90 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin Solution90-day Mortality43 Participants
Intravenous Balanced Crystalloid90-day Mortality32 Participants
Secondary

Data Completeness of Primary Outcome

Feasibility Outcome assessing the number of participants who provided data for clinical primary outcome (30 day mortality)

Time frame: 180 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionData Completeness of Primary Outcome147 Participants
Intravenous Balanced CrystalloidData Completeness of Primary Outcome149 Participants
Secondary

Health Related Quality of Life (EQ-5D-5L Questionnaire)

Health Economic Outcomes are measured using the the 5-level EQ-5D version (EQ-5D-5L). The EQ-5D-5L descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. A high score indicates a worse outcome. The patient is asked to indicate their health state by ticking the box next to the most appropriate statement in each of the five dimensions. The digits for the five dimensions can be combined into a 5-digit number (profile) that describes the patient's health state. The EQ-5D profile can be converted to a single number between 0-1 called the EQ-5D value. These EQ-5D values to lie on between 0-1 to indicate health where 0 represents the minimum score (dead) and 1 is full health. Values less than 0 are possible for health states considered worse than dead.

Time frame: 180 Days

Population: Health Related Quality of life questionnaires were applicable only to the first 50 participants who entered the study. As this is a self-reported questionnaire, participants may not be well enough to complete this at any given time-point.

ArmMeasureValue (MEDIAN)
5% Human Albumin SolutionHealth Related Quality of Life (EQ-5D-5L Questionnaire)0.4 units on a scale
Intravenous Balanced CrystalloidHealth Related Quality of Life (EQ-5D-5L Questionnaire)0.5 units on a scale
Secondary

Health Related Quality of Life (EQ-5D-5L Questionnaire)

Health Economic Outcomes are measured using the the 5-level EQ-5D version (EQ-5D-5L). The EQ-5D-5L descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. A high score indicates a worse outcome. The patient is asked to indicate their health state by ticking the box next to the most appropriate statement in each of the five dimensions. The digits for the five dimensions can be combined into a 5-digit number (profile) that describes the patient's health state. The EQ-5D profile can be converted to a single number between 0-1 called the EQ-5D value. These EQ-5D values to lie on between 0-1 to indicate health where 0 represents the minimum score (dead) and 1 is full health. Values less than 0 are possible for health states considered worse than dead.

Time frame: baseline

Population: Health Related Quality of life questionnaires were applicable only to the first 50 participants who entered the study. As this is a self-reported questionnaire, participants may not be well enough to complete this at any given time-point.

ArmMeasureValue (MEDIAN)
5% Human Albumin SolutionHealth Related Quality of Life (EQ-5D-5L Questionnaire)0.8 score on a scale
Intravenous Balanced CrystalloidHealth Related Quality of Life (EQ-5D-5L Questionnaire)0.5 score on a scale
Secondary

Health Related Quality of Life (EQ-5D-5L Questionnaire)

Health Economic Outcomes are measured using the the 5-level EQ-5D version (EQ-5D-5L). The EQ-5D-5L descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. A high score indicates a worse outcome. The patient is asked to indicate their health state by ticking the box next to the most appropriate statement in each of the five dimensions. The digits for the five dimensions can be combined into a 5-digit number (profile) that describes the patient's health state. The EQ-5D profile can be converted to a single number between 0-1 called the EQ-5D value. These EQ-5D values to lie on between 0-1 to indicate health where 0 represents the minimum score (dead) and 1 is full health. Values less than 0 are possible for health states considered worse than dead.

Time frame: 7 Days

Population: Health Related Quality of life questionnaires were applicable only to the first 50 participants who entered the study. As this is a self-reported questionnaire, participants may not be well enough to complete this at any given time-point.

ArmMeasureValue (MEDIAN)
5% Human Albumin SolutionHealth Related Quality of Life (EQ-5D-5L Questionnaire)0.4 score on a scale
Intravenous Balanced CrystalloidHealth Related Quality of Life (EQ-5D-5L Questionnaire)0.5 score on a scale
Secondary

In-hospital Mortality

Secondary Clinical Outcome

Time frame: From time of Randomisation until time of hospital discharge or death, whichever is first measured up to 90 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionIn-hospital Mortality29 Participants
Intravenous Balanced CrystalloidIn-hospital Mortality23 Participants
Secondary

Length of Hospital Stay

Secondary Clinical Outcome

Time frame: 90 days

ArmMeasureValue (MEAN)Dispersion
5% Human Albumin SolutionLength of Hospital Stay12.7 daysStandard Deviation 15.9
Intravenous Balanced CrystalloidLength of Hospital Stay13.9 daysStandard Deviation 19.3
Secondary

Length of Stay in Critical Care (HDU/ICU)

Secondary Clinical Outcome- Length of stay in critical care (HDU/ICU)

Time frame: 90 days

ArmMeasureValue (MEAN)Dispersion
5% Human Albumin SolutionLength of Stay in Critical Care (HDU/ICU)1.3 daysStandard Deviation 5.9
Intravenous Balanced CrystalloidLength of Stay in Critical Care (HDU/ICU)1.5 daysStandard Deviation 5.4
Secondary

Number of Participants Needing Intravenous Vasopressors

Secondary Clinical Outcome-number of participants needing intravenous vasopressors

Time frame: From time of Randomisation until time of hospital discharge, measured up to 90 days.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionNumber of Participants Needing Intravenous Vasopressors18 Participants
Intravenous Balanced CrystalloidNumber of Participants Needing Intravenous Vasopressors12 Participants
Secondary

Number of Participants Needing Invasive Ventilation

Secondary Clinical Outcome- Number of participants needing invasive ventilation

Time frame: From time of Randomisation until time of hospital discharge, measured up to 90 days.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionNumber of Participants Needing Invasive Ventilation7 Participants
Intravenous Balanced CrystalloidNumber of Participants Needing Invasive Ventilation4 Participants
Secondary

Number of Participants Needing Renal Replacement

Secondary Clinical Outcome- Number of participants needing renal replacement

Time frame: From time of Randomisation until time of hospital discharge, measured up to 90 days.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionNumber of Participants Needing Renal Replacement1 Participants
Intravenous Balanced CrystalloidNumber of Participants Needing Renal Replacement2 Participants
Secondary

Number of Patients Developing Acute Kidney Injury (AKI)

AKI Defined using National Institute for Health and Care Excellence (NICE) criteria: A diagnosis of AKI may be made if there is one of the following: A rise in serum creatinine of 26 micromol/L or greater within 48 hours. A 50% or greater rise in serum creatinine known or presumed to have occurred within the past 7 days. A fall in urine output to less than 0.5 mL/kg/hour for more than 6 hours.

Time frame: 7 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionNumber of Patients Developing Acute Kidney Injury (AKI)36 Participants
Intravenous Balanced CrystalloidNumber of Patients Developing Acute Kidney Injury (AKI)30 Participants
Secondary

Number of Patients Developing Allergy or Anaphylaxis

Requirement for rescue management (antihistamines, adrenaline, intravenous fluids, steroid)

Time frame: 7 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionNumber of Patients Developing Allergy or Anaphylaxis0 Participants
Intravenous Balanced CrystalloidNumber of Patients Developing Allergy or Anaphylaxis1 Participants
Secondary

Number of Patients Developing Pulmonary Oedema

Safety Radiology diagnosis or requirement for rescue management (new diuretic use)

Time frame: 7 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionNumber of Patients Developing Pulmonary Oedema22 Participants
Intravenous Balanced CrystalloidNumber of Patients Developing Pulmonary Oedema11 Participants
Secondary

Number of Patients Readmitted in First 90 Days After Discharge

Secondary Clinical Outcome- Number of patients readmitted in first 90 days after discharge

Time frame: 90 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionNumber of Patients Readmitted in First 90 Days After Discharge20 Participants
Intravenous Balanced CrystalloidNumber of Patients Readmitted in First 90 Days After Discharge21 Participants
Secondary

Number of Patients Who Receive Any Other Fluid Apart From Intervention or Control in First 6 Hrs After Recruitment

Feasibility Outcome- number of patients who receive any other fluid apart from intervention or control in first 6 hrs after recruitment

Time frame: 6 hours

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionNumber of Patients Who Receive Any Other Fluid Apart From Intervention or Control in First 6 Hrs After Recruitment33 Participants
Intravenous Balanced CrystalloidNumber of Patients Who Receive Any Other Fluid Apart From Intervention or Control in First 6 Hrs After Recruitment1 Participants
Secondary

Proportion of Patients Admitted to Critical Care (HDU/ICU)

Secondary Clinical Outcome- Proportion of patients admitted to critical care (HDU/ICU)

Time frame: 90 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionProportion of Patients Admitted to Critical Care (HDU/ICU)6 Participants
Intravenous Balanced CrystalloidProportion of Patients Admitted to Critical Care (HDU/ICU)3 Participants
Secondary

Secondary Care Costs

Costs will be estimated by assigning national standard unit costs to inpatient stays (critical care and general ward level), readmissions and additional high costs activities observed in the study. Baseline (pre-admission) HQoL will be estimated using age/sex matched population reference data.

Time frame: 30 days

Secondary

Time to Start of In-hospital Intravenous Fluids

Feasibility Outcome- Time to start of in-hospital intravenous fluids

Time frame: From time of Randomisation until fluid first being administered measured up to 6 hours.

ArmMeasureValue (MEDIAN)
5% Human Albumin SolutionTime to Start of In-hospital Intravenous Fluids41 minutes
Intravenous Balanced CrystalloidTime to Start of In-hospital Intravenous Fluids36 minutes
Secondary

Volume of Randomised Fluid Delivered in Each Arm in the First 24hrs

Secondary Clinical Outcome-Volume of randomised fluid delivered in each arm in the first 24hrs

Time frame: 24 hours

ArmMeasureValue (MEAN)Dispersion
5% Human Albumin SolutionVolume of Randomised Fluid Delivered in Each Arm in the First 24hrs1012 mlStandard Deviation 703
Intravenous Balanced CrystalloidVolume of Randomised Fluid Delivered in Each Arm in the First 24hrs2209 mlStandard Deviation 1461
Secondary

Volume of Randomised Fluid Delivered in Each Arm in the First 6hrs

Secondary Clinical Outcome- Volume of randomised fluid delivered in each arm in the first 6hrs

Time frame: 6 hours

ArmMeasureValue (MEDIAN)
5% Human Albumin SolutionVolume of Randomised Fluid Delivered in Each Arm in the First 6hrs750 ml
Intravenous Balanced CrystalloidVolume of Randomised Fluid Delivered in Each Arm in the First 6hrs1250 ml
Secondary

Withdrawal From Study

Feasibility Outcomes assessing the number of participants who withdraw from study intervention and/or data collection

Time frame: Approx 1 year

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5% Human Albumin SolutionWithdrawal From Study3 Participants
Intravenous Balanced CrystalloidWithdrawal From Study1 Participants

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