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Severe SepsisPERFuSENCT03641534

Monitoring of Perfusion in Sepsis and Malaria

An observational study of Severe Sepsis and Malaria, run by University of Oxford at 1 site in Bangladesh.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Sepsis and severe malaria together contribute to an estimated 13 million deaths annually, a great burden of which is in low-income countries. Optimal fluid management is critical yet remains one of the most challenging clinical care elements as volume overload precipitates pulmonary edema and volume restriction may… Read more about this study

Who is it for?
Ages 12 years and older
Conditions the study is for
Severe Sepsis, Malaria
What is being tested?
Lung Ultrasound examination, Compression ultrasonography (CUS) and Echocardiography
How many people
103 participants
Where
1 siteBangladesh
Study dates
4 Jun 2018to 26 Sep 2019
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 12 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Male or female subjects, aged ≥12 years hospitalized with malaria or sepsis.

Who may be able to join

  • Sepsis criteria:
  • The sepsis criteria include the severe sepsis and septic shock categories according to 2012 Surviving Sepsis Campaign guidelines. Due to a possible delay in obtaining all the enrolment sequential organ failure assessment (SOFA) score variables necessary to fulfil the criteria for the latest 2016 sepsis definition, the 2012 Surviving Sepsis Campaign criteria and the quick SOFA tool will be used for inclusion. However, after study completion, when all admission SOFA scores will be available, all patients will be re-scored according to the Sepsis 3 definition.
  • Documented or suspected infection
  • Systolic blood pressure ≤ 100 mmHg, or receiving vasopressor (epinephrine, norepinephrine, dopamine)
  • PLUS one or more of the following:
  • Respiratory rate ≥22 breaths per minute or under oxygen therapy or mechanical ventilation B. Altered mental status (Glasgow Coma Scale ≤ 14)
Show all 22Show fewer
  • Fully informed written consent obtained, including written informed consent from a relative or parent/guardian in case of reduced consciousness and/or age < 16 years.
  • Age ≥12 years
  • Negative peripheral blood slide for any stages of malaria parasites and a negative rapid diagnostic test (RDT) for falciparum and vivax malaria.
  • Within 24 hours of hospital or ICU admission
  • Note: Positive blood or urine cultures not required as eligibility criteria due to limited microbiology laboratory availability.
  • Severe malaria criteria Using modified World Health Organization criteria for severe falciparum malaria, as defined previously.
  • Any P. falciparum or P. vivax parasitaemia in adults, detected by asexual stages on a peripheral blood- slide or a positive RDT in combination with one or more:
  • GCS <11 ii. Hematocrit < 20% with parasite count >100,000/mm3 iii. Jaundice with parasite count >100,000/mm3 iv. Serum creatinine >3 mg/dL (or anuria) v. Hypoglycemia with venous glucose <40 mg/dL vi. Systolic blood pressure <80 mmHg with cool extremities vii. Peripheral asexual stage parasitemia >10 % viii. Peripheral venous lactate >4 mmol/L ix. Peripheral venous bicarbonate <15 mmol/L x. Respiratory distress/pulmonary edema: radiologically confirmed, or oxygen saturation <92% on room air with a respiratory rate >30/min, often with chest indrawing and crepitations on auscultation xi. Spontaneous bleeding xii. Generalized convulsions (≥2 in 24 hours)
  • Fully informed written consent obtained, including written informed consent from relative or parent/guardian in case of reduced consciousness and/or age < 16 years.
  • Age ≥12 years
  • Within 24 hours of antimalarial treatment
  • Uncomplicated malaria criteria (control group)
  • P. falciparum slide positive (asexual stages) on peripheral blood slide or positive RDT in combination with none of the above severity criteria.
  • Within 24 hours of start of antimalarial treatment
  • Fully informed written consent obtained, including written informed consent from relative or parent/guardian in case of reduced consciousness and/or age < 16 years.
  • Age ≥12 years

Who cannot join

  • The participant may not enter the study if ANY of the following apply:
  • Patients admitted with known malignancy or liver disease
  • Recent surgery (as part of current admission)
  • Trauma (resulting in current admission)
  • Antimalarial treatment ≥24 hours prior to screening

Trial locations and contacts

1 site in 1 country.

Bangladesh1 site
  • Chittagong Medical College Hospital

    Chittagong

Other trials in Bangladesh

About this study

Official title: Perfusion and Lung Congestion Evaluation Related to Fluids and Vasopressors in Sepsis and Malaria. (PERFuSE): an Observational Study

Sepsis and severe malaria together contribute to an estimated 13 million deaths annually, a great burden of which is in low-income countries. Optimal fluid management is critical yet remains one of the most challenging clinical care elements as volume overload precipitates pulmonary edema and volume restriction may exacerbate acute kidney injury. These complications of sepsis and severe malaria significantly increase mortality, particularly in resource-limited settings lacking mechanical ventilation and renal replacement therapy. Point-of-care ultrasound and passive leg raise testing are two easily implementable, safe and non-invasive clinical bedside fluid assessment tools that could be applied towards developing a fluid management algorithm in low resource settings. Similarly, simple tissue perfusion measures can facilitate understanding of precise indications or contraindication to fluid and vasopressor therapy.

However, the performance of these tools has yet to be confirmed in these settings. Accurate assessment of pulmonary tolerance and fluid responsive patients could aid to tailor vasopressor and fluid therapy to the patient condition and disease phase, thus preventing or detecting iatrogenic pulmonary edema and other pulmonary complications. As there is currently limited evidence supporting fluid management recommendations for severe malaria and sepsis in low-resource settings, the potential application of these management tools could optimize supportive therapy and improve outcomes in these populations.

Read more

The main activity proposed is a prospective, observational study of patients with sepsis and severe malaria to describe the relationship between fluid therapy and vasopressor therapy against measures of tissue perfusion and pulmonary congestion in adult patients with severe malaria or severe sepsis. In addition, the study will assess the performance of simple bedside clinical tools assessing fluid responsiveness, pulmonary congestion and peripheral tissue perfusion.

The data from this observational study will facilitate the preparation of a follow-up study to test a clinical algorithm to guide individualized fluid and vasopressor administration.

Read the detailed description

This will be a single center, prospective, longitudinal, observational study of patients with sepsis or severe malaria. It is planned that this initial observational study will inform a follow-up intervention study, based on the observational study findings (Lung Ultrasound and Passive Leg Raising- guided Vasopressors and Fluid Management in Patients with Sepsis and Severe Malaria). The follow-up study will propose testing of a clinical algorithm to individualize titration of vasopressors, diuretics and fluids based on the simple tools evaluated during the observational study.

The expected duration of study patient participation is 30 days. Patients will be assessed every 6 hours until fever clearance, parasite clearance (in malaria patients) and GCS normalization (score of 15) on two consecutive assessments. Thereafter, patients will be assessed daily until discharge or death with one follow-up visit at 14 days and a follow-up call at day 30. The prospective, observational recruitment phase of the study is expected to last 15 months.

Funder: Wellcome Trust of Great Britain, Grant reference number: 220211/A/20/Z

Being tested
Lung Ultrasound examination, Compression ultrasonography (CUS), Echocardiography, Inferior Vena Cava ultrasound, Passive leg raising test (PLR)
Keywords
Perfusion, Lung congestion
Medical subject headings
Sepsis, Malaria

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Lung Ultrasound examinationProcedure or surgery

    Use of lung ultrasound to detect pulmonary complications

  • Compression ultrasonography (CUS)Procedure or surgery

    CUS is a highly sensitive and specific modality used to recognize lower extremity deep venous thrombosis (DVT)

  • EchocardiographyProcedure or surgery

    Echocardiogram can be (i) identify imminent life-threatening causes of hemodynamic failure, (ii) recognize coexisting diagnoses that complicate management, (iii) follow the evolution of the disease process, and (iv) monitor response to treatment

  • Inferior Vena Cava ultrasoundProcedure or surgery

    Measurement of the inferior vena cava diameter

  • Passive leg raising test (PLR)Procedure or surgery

    Baseline assessment (including pulse rate, systolic and diastolic blood pressure, velocity time integral (VTI) and stroke volume (SV) echocardiographic measurements) will be performed in the resting semi-recumbent position, defined as a position with the trunk elevated 30° to 45° relative to the lower limbs.

  • Orthogonal polarization spectral imaging (OPS)Procedure or surgery

    Measurement of capillary flow in the rectal microcirculation

  • Urine collection (Foley catheter)Procedure or surgery

    For urinalysis, biochemistry, urine microscopy, pH, and culture.

  • Venous blood samplingsProcedure or surgery

    for: parasitological and microbiological diagnostics, complete blood count, biochemistry, red cell deformability analyzed by laser assisted rotational cell analyser (LORCA), markers of oxidative stress (peripheral intravenous catheter)

  • ElectrocardiogramProcedure or surgery

    all patients will have an ECG performed on enrolment as a non-invasive investigation

  • GlycoCheckProcedure or surgery

    GlycoCheck is a clinical sublingual handheld, bedside microscope that detects erythrocytes within the small sublingual blood vessels measuring 5 to 25 micrometers in diameter. The sublingual vasculature is a validated site for measuring thickness of the endothelial glycocalyx.

Study groups in NCT03641534
Study groupRoleWhat they receive
SepsisNot described
Receives: Procedure: Lung Ultrasound examination; Procedure: Compression ultrasonography (CUS); Procedure: Echocardiography; Procedure: Inferior Vena Cava ultrasound; Procedure: Passive leg raising test (PLR); Procedure: Orthogonal polarization spectral imaging (OPS); Procedure: Urine collection (Foley catheter); Procedure: Venous blood samplings; Procedure: Electrocardiogram; Procedure: GlycoCheck
Severe malariaNot described
Receives: Procedure: Lung Ultrasound examination; Procedure: Compression ultrasonography (CUS); Procedure: Echocardiography; Procedure: Inferior Vena Cava ultrasound; Procedure: Passive leg raising test (PLR); Procedure: Orthogonal polarization spectral imaging (OPS); Procedure: Urine collection (Foley catheter); Procedure: Venous blood samplings; Procedure: Electrocardiogram; Procedure: GlycoCheck
Uncomplicated malariaNot described
Receives: Procedure: Lung Ultrasound examination; Procedure: Compression ultrasonography (CUS); Procedure: Echocardiography; Procedure: Inferior Vena Cava ultrasound; Procedure: Passive leg raising test (PLR); Procedure: Orthogonal polarization spectral imaging (OPS); Procedure: Urine collection (Foley catheter); Procedure: Venous blood samplings; Procedure: Electrocardiogram; Procedure: GlycoCheck

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Fluid balance volume at 24 hours

    Fluid balance volume in milliliters calculated daily as inputs minus outputs.

    Measured: On the first 24 hours from enrollment

  2. Plasma lactate levels

    Plasma venous lactate levels expressed in mmol/L

    Measured: 72 hours

  3. Vasopressor therapy

    Expressed as dichotomous variable, use of any vasopressor during the first 72 hours.

    Measured: 72 hours

  4. Global ultrasound aeration score

    The score ( range 0-36) is calculated over 12 lung zones where each zone is scored 0 to 3.

    Measured: 72 hours

  5. Fluid balance volume at 48 hours

    Fluid balance volume in milliliters calculated daily as inputs minus outputs.

    Measured: On the first 48 hours from enrollment

  6. Fluid balance volume at 72 hours

    Fluid balance volume in milliliters calculated daily as inputs minus outputs.

    Measured: On the first 72 hours from enrollment

Secondary outcomes (17)
  1. Plasma creatinine levels

    Measured in millimoles per liter.

    Measured: 48 hours

  2. Positive chest X-ray for pulmonary edema (dichotomous variable)

    Other measures evaluating pulmonary congestion

    Measured: 72 hours

  3. The ratio between pulse oxymetry hemoglobin saturation and the fraction of inspired oxygen (SpO2/FiO2 ratio).

    Other measures evaluating pulmonary congestion

    Measured: 72 hours

  4. Proportion of fluid responsive patients

    Fluid responsiveness is defined as a positive pulse pressure passive leg raise test (change in pulse pressure >10% after leg raise manouver) or cardiac output-guided passive leg raise test (change in cardiac output >10% after leg raise manouver). The passive leg raise test is performed both a standard maneuver (bed tilting) and a modified maneuver (manual leg raise).

    Measured: 72 hours

  5. Prolonged capillary refill time (dichotomous variable, defined as ≥3 seconds)

    Other measures evaluating tissue perfusion

    Measured: 72 hours

  6. Skin mottling score (0-5)

    Other measures evaluating tissue perfusion

    Measured: 72 hours

  7. Cardiac index (in liters per minute per square meter of body surface area)

    Other measures evaluating tissue perfusion

    Measured: 72 hours

  8. Core-periphery temperature gradient(°C)

    Other measures evaluating tissue perfusion

    Measured: 72 hours

  9. Proportion of patients at enrolment and during admission with a low cardiac index and hypoperfusion state.

    Measured: 72 hours

  10. Proportion of patients with microvasculature obstruction or abnormalities

    Microvasculature obstruction and abnormalities are detected with orthogonal polarization spectral imaging (OPS); red cell deformability is studied by laser assisted rotational cell analyser (LORCA).

    Measured: 24 hours

  11. Proportion of patients that develop pulmonary edema and acute respiratory distress syndrome (ARDS).

    Pulmonary edema is defined as the presence of 2 or more positive lung zones per hemithorax on the lung ultrasound. Acute respiratory distress syndrome is defined according to the Berlin Definition criteria.

    Measured: 72 hours

  12. Case fatality in first 30 days.

    Measured: 30 days

  13. Acute kidney injury (AKI)

    Proportion of AKI as per Kidney Diseases Improving Global Outcomes definition: serum creatinine increase by ≥ 3 mg/dl within 48 hours, or serum creatinine increase by ≥ 1.5 times baseline, or urine volume <0.5 mg/kg/h for 6 hours. Outcome of AKI defined as renal recovery (time in days until creatinine returns to baseline).

    Measured: At admission, up to day 14, and renal recovery by 30 days

  14. Proportion of patients that develop lower extremity deep venous thrombosis.

    Deep venous thrombosis is defined as a positive compressive ultrasonography on femoral or popliteal veins of lower limbs.

    Measured: 72 hours

  15. Microbiological etiology of sepsis.

    Results of blood culture and organism identified in case of positive result

    Measured: 72 hours

  16. Number of patients with ARDS according to the Kigali Modification of the Berlin Definition of ARDS

    Measured: 72 hours

  17. Diagnostic performance measures (sensitivity, specificity, positive predictive value, negative predictive value) of the digital microscope with expert microscopy as the gold standard

    Measured: 7 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Aug 2018
  2. Study start4 Jun 2018
  3. Primary completion29 Aug 2019
  4. Study completion26 Sep 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
103 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03641534
Sponsor's protocol ID
MAL18001
Acronym
PERFuSE
Status last verified
Sep 2020
First submitted
29 May 2018
Last updated
21 Jun 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Severe Sepsis and Malaria, run by University of Oxford at 1 site in Bangladesh.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 22 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Bangladesh. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Fluid balance volume at 24 hours (time frame: On the first 24 hours from enrollment). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Jun 2021.

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