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CompletedNCT02295514SEPP1BUpdated May 12, 2016

Correlation Between PTP1B Expression and Organ Failure During Sepsis

An interventional study of PTP1B dosage in Sepsis, sponsored by University Hospital, Rouen. Completed at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-05-12.

Sponsored by University Hospital, Rouen · Not applicable and Interventional

Phase
Not applicable
Study type
Interventional
Enrollment
54
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

Despite major advances in the treatment and understanding of the pathophysiological mechanisms, mortality of severe sepsis remains high, ranging from 25 to 50%. With a prevalence > 20% in intensive care units, it is now in a population increasingly aging with many co-morbidities, a real public health problem. Thus, changes in treatment to physiological axes could change the prognosis of these patients. Protein Tyrosine Phosphatase 1B (PTP1B) is involved in the negative regulation of many cellular pathways such as the response to insulin, leptin and certain growth factors and endothelial nitric oxide production. PTP1B appears to be particularly involved in the control of endothelial function and insulin secretion. Under these conditions, encouraging results have been obtained in a model of insulin resistance (obesity, diabetes) and as part of pro-angiogenic therapy by inhibition of PTP1B on models of heart failure. Recent advances have broadened the pathophysiological implications of PTP1B conferring a potential role in the regulation of inflammatory processes. In an experimental model of septic shock (Inserm 1096), the investigators demonstrated a significant improvement in survival and cardiovascular function in genetically deficient mice PTP1B (PTP1B - / -). Finally, PTP1B is involved in the downregulation of the signaling pathway of insulin via a feedback phenomenon. Septic shock induces many changes in carbohydrate metabolism. These changes result in hyperglycemia associated with insulin resistance, an independent risk factor of morbidity and mortality. Taken together, these data suggest that the expression of PTP1B could be useful in septic patients by modulating insulin resistance and thus the prognosis of these patients. This justifies the investigator clinical research project on the relationship between the expression of PTP1B levels, glycemic status and prognosis evaluated by the SOFA score in patients with septic shock with multiple organ failure.

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Conditions studied

  • Sepsis

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Keywords

  • Sepsis
  • Septic shock
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In context

Sepsis

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

This study's enrollment of 54 is below the median of 105 across 896 interventional studies indexed under Sepsis.

Browse Sepsis studies →

Lead sponsor

University Hospital, Rouen is the lead sponsor of 410 studies on the registry; 104 are open to participants now.

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

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Who can participate

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

Inclusion criteria

  • Patients in ICU for septic shock
  • Person belonging to a social security system
  • Informed patient who signed consent
  • Contraceptive method in women of reproductive age

Exclusion criteria

Exclusion Criteria:

  • Pregnancy
  • Patient not able to take a decision because of an administrative or legal decision
  • Patient participating to an other interventional study
  • BMI > 30 kg/m2
  • Diabetes with specific treatment
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Study design

Phase
Not applicable
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
54 participants (actual)

Study arms

  • Experimental
    PTP1B dosage

    PTP1B dosage during sepsis

    Biological: PTP1B dosage

Interventions

  • BiologicalPTP1B dosage

    PTP1B sampled and dosed during sepsis

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What researchers measure

Primary outcomes

  1. Change from baseline in PTP1B level expression

    Change from baseline in PTP1B level expression by biological analysis

    Time frame: Day 5

  2. Number of patients with organ failure

    Number of patients with organ failure

    Time frame: Day 5

Secondary outcomes

  1. Dose of insulin administered during the sepsis

    cumulative dose of insulin administered in the first 5 days of hospitalization

    Time frame: Day 5

  2. Insulin resistance evaluation

    Evaluation of insulin resistance by biological analysis

    Time frame: Day 1

  3. Blood glucose Analysis

    Analysis of the variability in Blood glucose

    Time frame: Day 5

  4. Number of death participants at ICU discharge

    ICU mortality at day 28

    Time frame: ICU discharge, day 28

  5. Number of death participants at at the end of the study

    Mortality at day 28

    Time frame: Day 28

  6. Number of death participants at at hospital discharge

    Mortality at hospital discharge, average of 10 days after surgical intervention

    Time frame: 10 days (average)

  7. Duration of mechanical ventilation

    Duration of mechanical ventilation from admission to discharge

    Time frame: Day 28

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Study locations

1 site
  • Rouen University Hospital
    Rouen, France
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References and documents

Publications

  • Elchebly M, Payette P, Michaliszyn E, Cromlish W, Collins S, Loy AL, Normandin D, Cheng A, Himms-Hagen J, Chan CC, Ramachandran C, Gresser MJ, Tremblay ML, Kennedy BP. Increased insulin sensitivity and obesity resistance in mice lacking the protein tyrosine phosphatase-1B gene. Science. 1999 Mar 5;283(5407):1544-8. doi: 10.1126/science.283.5407.1544. PubMed 10066179 ↗
  • Coquerel D, Neviere R, Delile E, Mulder P, Marechal X, Montaigne D, Renet S, Remy-Jouet I, Gomez E, Henry JP, do Rego JC, Richard V, Tamion F. Gene deletion of protein tyrosine phosphatase 1B protects against sepsis-induced cardiovascular dysfunction and mortality. Arterioscler Thromb Vasc Biol. 2014 May;34(5):1032-44. doi: 10.1161/ATVBAHA.114.303450. Epub 2014 Feb 27. PubMed 24578383 ↗
  • Traves PG, Pardo V, Pimentel-Santillana M, Gonzalez-Rodriguez A, Mojena M, Rico D, Montenegro Y, Cales C, Martin-Sanz P, Valverde AM, Bosca L. Pivotal role of protein tyrosine phosphatase 1B (PTP1B) in the macrophage response to pro-inflammatory and anti-inflammatory challenge. Cell Death Dis. 2014 Mar 13;5(3):e1125. doi: 10.1038/cddis.2014.90. PubMed 24625984 ↗
  • Zabolotny JM, Kim YB, Welsh LA, Kershaw EE, Neel BG, Kahn BB. Protein-tyrosine phosphatase 1B expression is induced by inflammation in vivo. J Biol Chem. 2008 May 23;283(21):14230-41. doi: 10.1074/jbc.M800061200. Epub 2008 Feb 14. PubMed 18281274 ↗
  • Ali MI, Ketsawatsomkron P, Belin de Chantemele EJ, Mintz JD, Muta K, Salet C, Black SM, Tremblay ML, Fulton DJ, Marrero MB, Stepp DW. Deletion of protein tyrosine phosphatase 1b improves peripheral insulin resistance and vascular function in obese, leptin-resistant mice via reduced oxidant tone. Circ Res. 2009 Nov 6;105(10):1013-22. doi: 10.1161/CIRCRESAHA.109.206318. Epub 2009 Sep 24. PubMed 19797171 ↗
  • Feldhammer M, Uetani N, Miranda-Saavedra D, Tremblay ML. PTP1B: a simple enzyme for a complex world. Crit Rev Biochem Mol Biol. 2013 Sep-Oct;48(5):430-45. doi: 10.3109/10409238.2013.819830. Epub 2013 Jul 23. PubMed 23879520 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 12, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02295514
Lead sponsor
University Hospital, Rouen
Collaborators
Institut National de la Santé Et de la Recherche Médicale, France
Responsible party
Sponsor
First posted
Nov 20, 2014
Start date
Jan 2015
Primary completion
May 2016
Completion
May 2016
Last update
May 12, 2016

Study contacts

steven grangé, MD
principal investigator · Rouen Universitary Hospital

Oversight

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

Not currently enrolling

This study is completed, as verified in May 2016. You cannot join it, but the record below documents what was studied.

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