Specific IgG Antibody in Patients With Primary Antibody Deficiencies Treated With Subcutaneous Immunoglobulin

April 15, 2008 updated by: Federal University of São Paulo

Serum IgG Antibody to Streptococcus Pneumoniae, Haemophilus Influenzae Type b and Tetanus Toxoid in Patients With Primary Antibody Deficiencies Treated With Subcutaneous Immunoglobulin Infusions

Objective: Measure serum IgG antibody to Streptococcus pneumoniae serotypes 1, 3, 5, 6B, 9V e 14, Haemophilus influenzae type b and tetanus toxoid in patients with primary antibody deficiencies who were treated with subcutaneous immunoglobulin infusions.

Study Overview

Status

Completed

Intervention / Treatment

Detailed Description

Therapy with polyvalent immunoglobulin (Ig) has been established as the standard therapy for antibody deficiencies for several decades now. Although subcutaneous infusions were originally proposed as an alternative to intramuscular injections, more recently, this method has been proven as a safe and convenient method for providing immunoglobulin levels in adults and children. Subcutaneous administration of immunoglobulins has some clinical advantages over intravenous immunoglobulin infusions (IVIG) , including a more benign side effect profile, better sustained levels of IgG in the blood and reduced cost. An additional benefit is an improvement in the quality of life, which is in part secondary to the feasibility of the patients to administer it themselves at home. The most common infections in primary antibody deficiency patients involves encapsulated bacteria, mainly Streptococcus pneumoniae and Haemophilus influenzae type b. The aim of this study is to verify if patients with antibody deficiency receiving subcutaneous immunoglobulin (SCIG) infusions keep protective antibody levels to Streptococcus pneumoniae, Haemophilus influenzae type b (Hib) and tetanus toxoid.

Study Type

Interventional

Enrollment (Actual)

5

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • São Paulo, Brazil, Cep 04025-002
        • Division of Allergy, Clinical Immunology and Rheumatology, Department of Pediatrics, Federal University of São Paulo

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

7 months to 73 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • a diagnosis of a primary immunodeficiency disease with hypo-or agammaglobulinemia
  • diagnosis performed according to the WHO definitions
  • already been treated with Intravenous immunoglobulin or subcutaneous immunoglobulin for at least 6 months prior to enrollment into this study
  • documented IgG trough levels (at least two values), type of used IgG preparation, dosage and dosage interval over a period of 6 months prior to enrollment into this study

Exclusion Criteria:

  • history of hypersensitivity to the study medication or to drugs with similar chemical structures
  • hypersensitivity to IgA
  • subjects currently requiring <400 or > 600 mg/kg/b.w. immunoglobulin per month
  • subjects whose dosage intervals for IV Ig are < 3 weeks
  • know pregnancy or positive pregnancy test
  • nursing mothers
  • childbearing potential, if an acceptable birth control is not practiced
  • history of chronic or persisting renal insufficiency (serum creatinine above upper limit of normal)
  • history of chronic or persisting hepatic insufficiency (ALT> 2 times the upper limit of normal)
  • risk of developing acute renal failure (Diabetes mellitus, volume depletion, sepsis, paraproteinemia)
  • any symptomatic heart disease requiring treatment (NYHA class II or above)
  • history of seizure disorder
  • history or risk for occlusive vascular disease
  • indication of active hepatitis A, B, or C at screening (HAV-PCR, HBV-PCR, or HCV-PCR positive)
  • detection of HIV-1 PCR positive
  • likelihood of requiring treatment during the study period with drugs not permitted by the study protocol
  • progressive fatal disease/life expectancy of less than 12 months
  • history of drug or alcohol abuse
  • pathological mental condition rendering the subject unable to understand, scope and possible consequences of the study and/or evidence of an uncooperative attitude
  • treatment with nephrotoxic drugs during the last 3 weeks
  • treatment with any other investigational drug in the last 3 months before study entry or likelihood of treatment with another investigational grug during the study period
  • evidence of uncooperative attitude
  • vaccination against hepatitis B within 3 months before enrollment into the study
  • former participation in this trial

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Specific IgG levels were measured using ELISA. Adequate response was arbitrarily defined as equal to or higher than 1.3 mg/L to pneumococci (Sorensen RU et al 1998), 1.0 mg/L to Hib (Takano AO 1997) and 0.1 IU/mL to tetanus toxoid (Kayhtyh et al 1983).
Time Frame: Samples from patients blood was collected every 4 weeks on 7 different occasions immediately before infusions.All patients were treated with subcutaneous immunoglobulin for 43 weeks.
Samples from patients blood was collected every 4 weeks on 7 different occasions immediately before infusions.All patients were treated with subcutaneous immunoglobulin for 43 weeks.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Collaborators

Investigators

  • Study Director: Beatriz T Costa Carvalho, md PhD, Federal University of São Paulo
  • Study Chair: Charles K Naspitz, md MSc, Federal University of São Paulo
  • Principal Investigator: Albertina RB Pizzamiglio, md MSc, Federal University of São Paulo
  • Study Director: Aparecida T Nagao-Dias, Federal University Of Ceara

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2002

Primary Completion (Actual)

November 1, 2002

Study Completion (Actual)

November 1, 2002

Study Registration Dates

First Submitted

April 14, 2008

First Submitted That Met QC Criteria

April 15, 2008

First Posted (Estimate)

April 18, 2008

Study Record Updates

Last Update Posted (Estimate)

April 18, 2008

Last Update Submitted That Met QC Criteria

April 15, 2008

Last Verified

April 1, 2008

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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