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CompletedNCT00490477Updated Jun 8, 2010Results posted

The Effects of Polymyxin-B Protects on Sepsis Induced Kidney Dysfunction: a Randomized Clinical Trial

A Phase 3 interventional study of Polymyxin -B fiber hemoperfusion system in Gram-Negative Bacterial Infections and Sepsis, sponsored by University of Turin, Italy. Completed at 1 site in Italy. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2010-06-08.

Sponsored by University of Turin, Italy · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
16
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Aim of the study is to verify whether Polymyxin-B hemoperfusion protects from renal dysfunction in patients with severe sepsis from gram negative infection.

Read the detailed description

Acute renal failure (ARF) is a frequent complication in sepsis, in nearly to 50% of the cases, and the mortality rate is higher, compare to patients with ARF alone (70% vs 45%). Clinical and experimental studies demonstrated the key role of apoptosis, or programmed cell death, in the induction of tubular and glomerular injury in the course of sepsis. Indeed, it has been shown that inflammatory cytokines and lipopolysaccharide (LPS) cause renal tubular cell apoptosis via Fas- and caspase-mediated pathways. In addition, LPS is able to alter the normal expression pattern of sodium, urea and glucose renal transporters and to modulate tubular polarity by changing the expression of tight junction proteins with consequent back-leakage of tubular fluid in the interstitial spaces and enhancement of the inflammatory process. Therefore a novel extracorporeal therapy to remove circulating LPS, using the Polymyxin-B fiber (PMX-B) cartridge was developed. The PMX-B cartridge is an extracorporeal hemoperfusion device and consists of a polystyrene-based, fibrous adsorbent on which the polymyxin B antibiotic is covalently immobilized as a ligand to adsorb endotoxin.

Aim of this study is to verify whether the removal of LPS, using the PMX-B hemoperfusion system, protects from acute renal failure, reduces the need for Renal Replacement Therapy (RRT) and consequently improves the outcome in severe sepsis from gram negative infection.

02

Conditions studied

  • Gram-Negative Bacterial Infections
  • Sepsis

Keywords

  • acute renal failure
  • lipopolysaccharide
  • tubular apoptosis
  • Polymyxin-B fiber
  • Severe sepsis from gram negative infection
03

In context

Sepsis

1,899 studies on the registry are indexed under Sepsis; 462 are open to participants now.

This study's enrollment of 16 is below the median of 105 across 896 interventional studies indexed under Sepsis.

Browse Sepsis studies →

Lead sponsor

University of Turin, Italy is the lead sponsor of 206 studies on the registry; 34 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Endotoxemia associated to severe sepsis

Exclusion criteria

Exclusion Criteria:

  • Age \< 18 years old
  • Organ transplantation
  • Hemorrhagic shock
  • Thrombophilia
  • Chronic renal failure
  • Cardiogenic shock
  • APACHE II score > 30
  • Lack of consent
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Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
16 participants (actual)

Study arms

  • No intervention
    CONVENTIONAL
  • Active comparator
    POLYMYXIN-B

    an extracorporeal LPS removal

    Device: Polymyxin -B fiber hemoperfusion system

Interventions

  • DevicePolymyxin -B fiber hemoperfusion system

    two hours treatment for two days

    Also known as: PMX-B

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What researchers measure

Primary outcomes

  1. Number of Participants Not Requiring Renal Replacement Therapy (RRT)

    Time frame: 28 days from the admission

Secondary outcomes

  1. The Reduction of the Number of Apoptotic Cells, Stimulated With Plasma Derives From Septic Patients With Gram Negative Infection, Treated With PMX-B Hemoperfusion, on Immortalized Tubular and Glomerular Cell Cultures.

    Time frame: 72 hours after randomization

07

Results

Posted Jun 4, 2010

Participant flow

Participant flow — Overall Study
MilestoneConventional Treatment (CONV)Polymyxin-B Hemoperfusion Treatment (PMX-B)
Started88
Completed88
Not completed00

Outcome measures

PrimaryNumber of Participants Not Requiring Renal Replacement Therapy (RRT)
Time frame:
28 days from the admission
Reported as:
Number · participants
Number of Participants Not Requiring Renal Replacement Therapy (RRT)
participantsConventional Treatment (CONV)Polymyxin-B Hemoperfusion Treatment (PMX-B)
Number of Participants Not Requiring Renal Replacement Therapy (RRT)31
SecondaryThe Reduction of the Number of Apoptotic Cells, Stimulated With Plasma Derives From Septic Patients With Gram Negative Infection, Treated With PMX-B Hemoperfusion, on Immortalized Tubular and Glomerular Cell Cultures.
Time frame:
72 hours after randomization
Reported as:
Number · cells

Results for this outcome have not been posted.

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Conventional Treatment (CONV)—0/8 (0%)0/8 (0%)
Polymyxin-B Hemoperfusion Treatment (PMX-B)—0/8 (0%)0/8 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Conventional Treatment (CONV)Polymyxin-B Hemoperfusion Treatment (PMX-B)Total
<=18 years000
Between 18 and 65 years6410
>=65 years246
Age Continuous
Age Continuous(years)Conventional Treatment (CONV)Polymyxin-B Hemoperfusion Treatment (PMX-B)Total
Mean59 ± 1361 ± 1060 ± 11
Sex: Female, Male
Sex: Female, Male(Participants)Conventional Treatment (CONV)Polymyxin-B Hemoperfusion Treatment (PMX-B)Total
Female224
Male6612
Region of Enrollment
Region of Enrollment(participants)Conventional Treatment (CONV)Polymyxin-B Hemoperfusion Treatment (PMX-B)Total
Italy8816
08

Study locations

1 site
  • University of Turin, Department of anesthesia and Intensive Care Medicine
    Turin, 10126, Italy
09

References and documents

Publications

  • Cantaluppi V, Assenzio B, Pasero D, Romanazzi GM, Pacitti A, Lanfranco G, Puntorieri V, Martin EL, Mascia L, Monti G, Casella G, Segoloni GP, Camussi G, Ranieri VM. Polymyxin-B hemoperfusion inactivates circulating proapoptotic factors. Intensive Care Med. 2008 Sep;34(9):1638-45. doi: 10.1007/s00134-008-1124-6. Epub 2008 May 8. PubMed 18463848 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 8, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00490477
Lead sponsor
University of Turin, Italy
First posted
Jun 22, 2007
Start date
May 2006
Primary completion
Jul 2007
Completion
Dec 2007
Results posted
Jun 4, 2010
Last update
Jun 8, 2010

Study contacts

marco ranieri, MD
study director · University of Turin, Department of Anesthesia and Intensive Care Medicine
marco ranieri, MD
principal investigator · University of Turin, Department of Anesthesia and Intensive Care Medicine

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2007. You cannot join it, but the record below documents what was studied.

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