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Hamoadsorpion in Patients With Septic Shock: Efficacy and Safety Evaluation (HAdSS)

Hamoadsorpion in Patients With Septic Shock: Efficacy and Safety Evaluation. A Pilot Multicenter Randomized Controlled Trial

The study will include patients aged 18 to 80 years with a verified diagnosis of septic shock according to SEPSIS 3 criteria, diagnosed within 12 hours, and a SOFA score of 9 or more.

The minimum waiting time after diagnosis of septic shock and initiation of basic therapy before inclusion of the patient in the study therapy is 4 hours.

In addition to Standard of Care (SOC), blood purification, including hemoadsorption, will be used.

The choice of procedure will be based on the EAA (Endotoxin Activity Assay) result:

  • for an EAA level of 0.6-0.9, selective lipopolysaccharide (LPS) adsorption with duration from 2 to 10 hours;
  • for an EAA level less than 0.6, inflammatory mediator adsorption with duration from 6 to 12 hours.

The choice of a specific adsorbers within the LPS and inflammatory mediator sorption group will be based on randomization.

The use of LPS adsorption is planned based on randomization: Toramyxin R-20 or Efferon LPS. The use of inflammatory mediator adsorption is planned based on randomization: Jafron (HA 330) or CytoSorb.

Every patient will receive 2 adsorption procedures. The second procedure will be initiated no later than 24 hours after the initiation of the first procedure.

LPS adsorption will be performed in 38 patients (Efferon LPS in 19 patients and Toramyxin in 19 patients), two procedures per patient.

Inflammatory mediator adsorption will be performed in 38 patients (Jafron HA 330 in 19 patients and CytoSorb in 19 patients), two procedures per patient.

Sample size calculations were performed separately for each treatment cohort. For the endotoxemia cohort (EAA level of 0.6-0.9), this randomized trial is designed to compare Efferron LPS and Toraymyxin with respect to change in SOFA score at 72 hours.

At present, no universally accepted minimal clinically important difference (MCID) has been established for the SOFA score in patients with septic shock. Therefore, the assumed treatment effect was derived from published evidence and expert clinical judgment.

In the EUPHAS trial, polymyxin B hemoperfusion was associated with a mean reduction in SOFA score of approximately 3.4 points at 72 hours, whereas minimal change was observed in the control group. Similarly, the LASSO study demonstrated substantial improvement in organ dysfunction following endotoxin adsorption therapy.

For the inflammatory mediator adsorption cohort (EAA level less than 0.6), this randomized trial is designed to compare CytoSorb and Jafron HA 330 with respect to change in SOFA score at 72 hours.

In the retrospective study Mehta et al., CytoSorb hemoperfusion was associated with a mean reduction in SOFA score of approximately 2.0 points after treatment in survival group. Similarly, the case series Onuk et al. demonstrated substantial improvement in organ dysfunction following inflammatory adsorption therapy with Jafron HA 330 with a mean reduction in SOFA score of approximately 3.5 points at 72 hours.

A between-group difference of 2.5 SOFA points was considered clinically meaningful for both Endotoxin hemoadsorption and inflammatory mediators hemoadsorption because it represents a substantial proportion of the treatment effect observed in previous hemoperfusion studies and corresponds to a clinically relevant difference in the degree of organ dysfunction improvement.

The sample size for both groups (LPS and inflammatory mediator adsorption) was calculated based on the following assumption: the primary endpoint was the change in SOFA score at 72 hours (ΔSOFA); the expected between-group difference - 2.5 points on the SOFA score; standard deviation of ΔSOFA - 2.5 points; equal allocation ratio (1:1); two-sided significance level (α) of 0.05; statistical power of 80%.

Sample size estimation was performed in R using the power.t.test() function. The calculation yielded a required sample size of 16.7 patients per group. Therefore, a minimum of 17 patients per group (34 patients in total) is required to achieve the planned statistical power.

To account for an anticipated 10% dropout rate, the final sample size will be 19 patients per group (38 patients in total for LPS+ 38 patients in total for Inflammatory mediators adsorption. 76 patients in total).

Studienübersicht

Detaillierte Beschreibung

Study Inclusion Algorithm

  1. Diagnosis of septic shock.
  2. SOFA score calculation.
  3. Definition of inclusion/exclusion criteria.
  4. Obtaining informed consent.
  5. Determining EAA. Selecting the procedure modality (LPS adsorption/inflammatory mediator adsorption).
  6. Database registration. Obtaining randomization data.
  7. Selecting a specific device based on randomization.
  8. Initial data collection.
  9. Initiating the first procedure.

When a patient is enrolled in the study and is ready to begin the hemoadsorption procedure, the following parameters are assessed:

  1. Dose of norepinephrine (mcg/kg/min).
  2. Dose of alternative vasopressors: epinephrine (mcg/kg/min), dopamine (mcg/kg/min), phenylephrine (mcg/kg/min), dobutamine (mcg/kg/min), terlipressin (mcg/kg/min). VIS will be calculated.
  3. Mean arterial pressure (MAP) based on invasive hemodynamic monitoring.
  4. Fractional oxygen content (%).
  5. Diuresis rate over 12 hours (ml/kg/hour).

Blood sampling:

  1. Arterial blood acid-base balance:

    • Arterial blood lactate level (mmol/L).
    • PaO2- Partial pressure of oxygen in arterial blood (mmHg).
  2. Blood chemistry panel:

    • Total bilirubin level (μmol/L).
    • Direct bilirubin level (μmol/L).
    • Indirect bilirubin level (μmol/L).
    • Procalcitonin level (ng/ml).
    • C-reactive protein (CRP) level (mg/L).
    • Creatinine level (μmol/L).
    • Ferritin level (μg/L).
  3. Complete blood count White blood cell count

    • Absolute neutrophil count (cells/µL).
    • Absolute lymphocyte count (cells/µL).
    • Absolute platelet count (10.9 /L).
  4. Blood collection for immunological testing (IL 6, IL 10, TNF).

Upon patient enrollment in the study, a description of the CRRT procedure parameters, dialysis membrane type, anticoagulation type, antibacterial agents, and suspected infectious agents is provided in the electronic patient record.

Data collection will occur at 24, 48, 72, and 120 hours from the start of the first hemoadsorption procedure.

Studientyp

Interventionell

Einschreibung (Geschätzt)

76

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

      • Moscow, Russland
        • Petrovsky National Research Centre of Surgery
        • Kontakt:
      • Moscow, Russland
        • Bakulev Scientific Center of Cardiovascular Surgery
        • Kontakt:
          • Mikhail Yarustovskiy, MD, PHD
          • Telefonnummer: +79104194682
          • E-Mail: mbyar@yandex.ru
      • Moscow, Russland
        • City clinical hospital named after S. S. Yudin, Moscow City Health
        • Kontakt:
      • Moscow, Russland
        • City Clinical Hospital No 52, Moscow, Russia
        • Kontakt:
      • Moscow, Russland
        • Moscow Multi-disciplinary Clinical Center "Kommunarka"
      • Moscow, Russland
        • Sklifosovsky Institute of Emergency Care
        • Kontakt:
      • Rostov-on-Don, Russland
        • National Medical Research Centre for Oncology Rostov-on-Don
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • Septic shock according to SEPSIS-3 criteria
  • Age: 18-80 years
  • SOFA ≥9 points
  • Diagnosis of septic shock established <12 hours ago
  • Invasive hemodynamic monitoring
  • Norepinephrine dose >0.2 mcg/kg/min

Exclusion Criteria:

  • Absolute neutrophil count less than 500 cells/μL
  • Pregnancy
  • End-stage heart failure (NYHA stage IV)
  • Pulmonary embolism with obstructive shock
  • Ongoing bleeding
  • Atonic coma
  • More than 30 points on the MELD scale, class C on the Child-Pugh scale
  • HIV infection
  • Burns over 10% of the body surface area
  • Patients with oncohematological diseases
  • Patients with a recognized palliative status or the definition of "metastatic cancer"
  • RRT using membranes with a high cutoff point and increased adsorption capacity within 72 hours from the initiation of the first hemoadsorption procedure
  • Use of plasma exchange within 72 hours from the initiation of the first hemoadsorption procedure

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Doppelt

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Inflammatory mediatiors adsorption with CytoSorb
Inflammatory mediatiors adsorption with EAA <0,6 with CytoSorb
Blood purification with Jafron HA 330
Aktiver Komparator: Inflammatory mediatiors adsorption with Jafron HA 330
Inflammatory mediatiors adsorption with EAA <0,6 with Jafron HA 330
Blood purification with Jafron HA 330
Experimental: Endotoxin haemoadsorption with Toramyxin PMX 20R
Endotoxin haemoadsorption with EAA [0.6-0.9] with Toramyxin PMX 20R
Blood purification with Toramyxin PMX 20R
Aktiver Komparator: Endotoxin haemoadsorption with Efferon LPS
Endotoxin haemoadsorption with EAA [0.6-0.9] with Efferon LPS
Blood purification with Efferon LPS

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
SOFA score
Zeitfenster: Assessed at 72 hours after hemoadsorption initiation
MODS dynamics majored by SOFA (sequential organ failure assessment) score
Assessed at 72 hours after hemoadsorption initiation

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
VIS dynamics
Zeitfenster: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation

Vasoactive Inotropic Score (VIS) dynamics

VIS = dopamine dose (mcg∕kg∕ min ) + dobutamine dose (mcg∕kg∕ min ) + 100 × epinephrine dose (mcg∕kg∕ min ) + 10 × milrinone dose (mcg∕kg∕ min ) + 10,000 × vasopressin dose (units∕kg∕ min )

+ 100 × norepinephrine dose (mcg∕kg∕ min )

Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
NE dose dynamics
Zeitfenster: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Norepinephrine dose dynamics (mcg/kg/min)
Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
MAP/VIS dynamics
Zeitfenster: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation

Mean arterial pressure (MAP) to Vasoactive Inotropic Score (VIS) dynamics

VIS = dopamine dose (mcg∕kg∕ min ) + dobutamine dose (mcg∕kg∕ min ) + 100 × epinephrine dose (mcg∕kg∕ min ) + 10 × milrinone dose (mcg∕kg∕ min ) + 10,000 × vasopressin dose (units∕kg∕ min ) + 100 × norepinephrine dose (mcg∕kg∕ min )

Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
P/f ratio dynamics
Zeitfenster: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Arterial oxygen partial pressure (PaO2)/fraction of inspired oxygen (FiO2) ratio (Horowitz index) dynamics
Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Lactate level dynamics
Zeitfenster: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Lactate level dynamics (mmol/l)
Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Total bilirubin level dynamics
Zeitfenster: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Total bilirubin level dynamics (mcmol/l)
Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Indirect bilirubin level dynamics
Zeitfenster: Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Indirect bilirubin level dynamics (mcmol/l)
Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Direct bilirubin level dynamics
Zeitfenster: Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Direct bilirubin level dynamics (mcmol/l)
Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Ferritin level dynamics
Zeitfenster: Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Ferritin level dynamics (mcg/l)
Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
PCT level dynamics
Zeitfenster: Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
Procalcitonin (PCT) level dynamics (ng/ml)
Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
CRP level dynamics
Zeitfenster: Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
C- reactive protein (CRP) level dynamics (mg/l)
Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
NLR dynamics
Zeitfenster: Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
NLR (neutrophil-to-lymphocyte ratio) dynamics
Time Frame: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
PLR dynamics
Zeitfenster: Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
PLR (Platelet-to-lymphocyte ratio) dynamics
Assessed at 4 time points: before hemoadsorption initiation (baseline); 24 hours, 48 hours and 72 hours after hemoadsorption initiation
TNF level dynamics
Zeitfenster: Assessed at 3 time points: before hemoadsorption initiation (baseline); 48 hours and 72 hours after hemoadsorption initiation
TNF (Tumor necrosis factor-alpha) level dynamics (pg/ml)
Assessed at 3 time points: before hemoadsorption initiation (baseline); 48 hours and 72 hours after hemoadsorption initiation
IL 6 level dynamics
Zeitfenster: Assessed at 3 time points: before hemoadsorption initiation (baseline); 48 hours and 72 hours after hemoadsorption initiation
IL 6 (Interleukin 6) level dynamics (pg/ml)
Assessed at 3 time points: before hemoadsorption initiation (baseline); 48 hours and 72 hours after hemoadsorption initiation
IL 10 level dynamics
Zeitfenster: Time Frame: Assessed at 3 time points: before hemoadsorption initiation (baseline); 48 hours and 72 hours after hemoadsorption initiation
IL 10 (Interleukin 10) level dynamics (pg/ml)
Time Frame: Assessed at 3 time points: before hemoadsorption initiation (baseline); 48 hours and 72 hours after hemoadsorption initiation
28 - days mortality
Zeitfenster: Will be calculated for 28 days after hemoadsorption initiation
28 - days mortality
Will be calculated for 28 days after hemoadsorption initiation
90 - days mortality
Zeitfenster: Will be calculated for 90 days after hemoadsorption initiation
90 - days mortality
Will be calculated for 90 days after hemoadsorption initiation
SOFA dynamics
Zeitfenster: Assessed at 4 time points: before hemoadsorption initiatioin (baseline); at 24, 48 and 120 hours after hemoadsorption initiation
MODS dynamics majored by SOFA (sequential organ failure assessment) score
Assessed at 4 time points: before hemoadsorption initiatioin (baseline); at 24, 48 and 120 hours after hemoadsorption initiation
SOFA 2 dynamics
Zeitfenster: Assessed at 5 time points: before hemoadsorption initiatioin (baseline); at 24, 48, 72 and 120 hours after hemoadsorption initiation
MODS dynamics majored by SOFA 2 (sequential organ failure assessment) score
Assessed at 5 time points: before hemoadsorption initiatioin (baseline); at 24, 48, 72 and 120 hours after hemoadsorption initiation

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Ventilator-free days
Zeitfenster: Will be calculated for 28 days after hemoadsorption initiation
Ventilator-free days
Will be calculated for 28 days after hemoadsorption initiation
Vasopressor-free days
Zeitfenster: Will be calculated for 28 days after hemoadsorption initiation
Vasopressor-free days
Will be calculated for 28 days after hemoadsorption initiation
Dialysis-free days
Zeitfenster: Will be calculated for 28 days after hemoadsorption initiation
Dialysis-free days
Will be calculated for 28 days after hemoadsorption initiation
Hospital length of stay
Zeitfenster: Will be calculated for 28 days after hemoadsorption initiation
Hospital length of stay
Will be calculated for 28 days after hemoadsorption initiation
ICU length of stay
Zeitfenster: Will be calculated for 28 days after hemoadsorption initiation
Intensive care unit (ICU) length of stay
Will be calculated for 28 days after hemoadsorption initiation
AEs
Zeitfenster: Serious AEs will be reported up to Day 28
The safety will be assessed by analysing the number of adverse events (AEs) where causal relationship with the intervention cannot be excluded, up until Day 28.
Serious AEs will be reported up to Day 28

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Allgemeine Veröffentlichungen

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

20. Juni 2026

Primärer Abschluss (Geschätzt)

20. Juni 2027

Studienabschluss (Geschätzt)

20. Dezember 2027

Studienanmeldedaten

Zuerst eingereicht

16. Juni 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

16. Juni 2026

Zuerst gepostet (Tatsächlich)

22. Juni 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

22. Juni 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

16. Juni 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

JA

Beschreibung des IPD-Plans

De-identified individual participant data (IPD) that underlie the results reported in the primary publication (including baseline characteristics, blood purification parameters, hemodynamics and SOFA score dynamics, clinical outcomes) will be made publicly available to ensure absolute transparency and academic reproducibility.

IPD-Sharing-Zeitrahmen

Data will become available immediately following the official publication of the primary trial results, approximately at 12/2027.

IPD-Sharing-Zugriffskriterien

The dataset will be openly accessible to any researcher, clinician, or analyst interested in replicating the study findings, conducting systematic reviews, or performing secondary meta-analyses. The data will be hosted publicly, and no formal research proposal review or data use agreements are required for access.

Art der unterstützenden IPD-Freigabeinformationen

  • STUDIENPROTOKOLL
  • SAFT
  • CSR

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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