NETs Formation in Patients With Recurrent Pyogenic Infections (NETS)

NCT ID: NCT01112592

Last Updated: 2013-02-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2010-05-31

Study Completion Date

2013-12-31

Brief Summary

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We aim to study if pathological NETs formation could be the underlying pathology among patients with recurrent infections and a normal screening of the immune system.

Detailed Description

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Our laboratory at Meir Medical Center, Kfar Saba, is the country's main center for neutrophil function, and serves about 80% of Israel's population. Patients are referred subsequent to recurrent, persistent, or unusual infections and after completing preliminary screening of the immune system and ruling out a humoral, cellular or complement immune deficiency. Initial workup includes chemotaxis, superoxide production (SOP), and bactericidal activity (BA). Based on test findings, further evaluation for a qualitative phagocytic disorder is conducted. Overall, impairment of phagocytic activity is found in about 33% (impaired chemotaxis in 16%, SOP in 6%, and BA in 24%). In the other 67%, no impairment of the immune function is found that can explain their tendency for recurrent pyogenic infections.

In 2004 a novel function of the neutrophil was identified: formation of neutrophil extracellular traps (NETs). Apparently, neutrophils are able to extrude part of their cellular contents in the form of DNA, histones and proteases, to form extra cellular NETS that trap and kill bacterial pathogens without the need for phagocytosis. We aim to study if pathological NETs formation could be the underlying pathology among these patients with recurrent infections and a normal screening of the immune system.

Conditions

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Pyogenic Infections

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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Inclusion Criteria

* Patients with recurrent, persistent, or unusual infections
* Referred for Neutrophil Functions

Exclusion Criteria

* None
Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Max Planck Institute for Infection Biology

OTHER

Sponsor Role collaborator

Meir Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Baruch Wolach, MD

Role: PRINCIPAL_INVESTIGATOR

Meir Medical Center

Locations

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Meir Medical Center

Kfar Saba, , Israel

Site Status RECRUITING

Countries

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Israel

Central Contacts

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Ronit Gavrieli, MSc

Role: CONTACT

972-9-7472399

Facility Contacts

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Ronit Gavrieli, MSc

Role: primary

972-9-7472399

Other Identifiers

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MMC-10156-09CTIL

Identifier Type: -

Identifier Source: org_study_id

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