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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).

Přehled studie

Detailní popis

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.

Typ studie

Intervenční

Zápis (Odhadovaný)

76

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní místa

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

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý
  • Starší dospělý

Přijímá zdravé dobrovolníky

Ne

Popis

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

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Dvojnásobek

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Inflammatory mediatiors adsorption with CytoSorb
Inflammatory mediatiors adsorption with EAA <0,6 with CytoSorb
Blood purification with Jafron HA 330
Aktivní komparátor: Inflammatory mediatiors adsorption with Jafron HA 330
Inflammatory mediatiors adsorption with EAA <0,6 with Jafron HA 330
Blood purification with Jafron HA 330
Experimentální: Endotoxin haemoadsorption with Toramyxin PMX 20R
Endotoxin haemoadsorption with EAA [0.6-0.9] with Toramyxin PMX 20R
Blood purification with Toramyxin PMX 20R
Aktivní komparátor: Endotoxin haemoadsorption with Efferon LPS
Endotoxin haemoadsorption with EAA [0.6-0.9] with Efferon LPS
Blood purification with Efferon LPS

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
SOFA score
Časové okno: Assessed at 72 hours after hemoadsorption initiation
MODS dynamics majored by SOFA (sequential organ failure assessment) score
Assessed at 72 hours after hemoadsorption initiation

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
VIS dynamics
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: Will be calculated for 28 days after hemoadsorption initiation
28 - days mortality
Will be calculated for 28 days after hemoadsorption initiation
90 - days mortality
Časové okno: Will be calculated for 90 days after hemoadsorption initiation
90 - days mortality
Will be calculated for 90 days after hemoadsorption initiation
SOFA dynamics
Časové okno: 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
Časové okno: 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

Další výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Ventilator-free days
Časové okno: Will be calculated for 28 days after hemoadsorption initiation
Ventilator-free days
Will be calculated for 28 days after hemoadsorption initiation
Vasopressor-free days
Časové okno: Will be calculated for 28 days after hemoadsorption initiation
Vasopressor-free days
Will be calculated for 28 days after hemoadsorption initiation
Dialysis-free days
Časové okno: 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
Časové okno: 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
Časové okno: 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
Časové okno: 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

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Obecné publikace

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

20. června 2026

Primární dokončení (Odhadovaný)

20. června 2027

Dokončení studie (Odhadovaný)

20. prosince 2027

Termíny zápisu do studia

První předloženo

16. června 2026

První předloženo, které splnilo kritéria kontroly kvality

16. června 2026

První zveřejněno (Aktuální)

22. června 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

22. června 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

16. června 2026

Naposledy ověřeno

1. června 2026

Více informací

Termíny související s touto studií

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

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.

Časový rámec sdílení IPD

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

Kritéria přístupu pro sdílení IPD

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.

Typ podpůrných informací pro sdílení IPD

  • PROTOKOL STUDY
  • MÍZA
  • CSR

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

Klinické studie na Septický šok

Klinické studie na CytoSorb

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