Immunodeficiency in Cartilage-hair Hypoplasia: Sub-project on Safety of Vaccination Against Chickenpox

NCT ID: NCT02383797

Last Updated: 2019-10-22

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

Clinical Phase

PHASE4

Total Enrollment

5 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-02-28

Study Completion Date

2020-02-29

Brief Summary

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The investigatoris will carefully select cartilage-hair hypoplasia patients unexposed to varicella (VZV) and immunize patients in a controlled manner with VZV vaccine. Patients will be selected on the basis of disease severity and the degree of immunodeficiency (including CD4+ T-cell counts). Any potential complication of VZV immunization, such as rash, will be discussed with the patients/caregivers beforehand and acyclovir will be used to treat any VZV related symptoms, consistent with the current practices. The investigators will verify the development of immune response to vaccination by testing for VZV antibodies and cell-mediated immunity.

Detailed Description

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Conditions

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Cartilage-hair Hypoplasia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Cartilage-hair hypoplasia (CHH)

Selected CHH patients will be vaccinated against varicella with Varilrix, one dose of 0,5 ml subcutaneously. If no response is documented to the first dose, the second dose of 0,5 ml can be administered.

Group Type EXPERIMENTAL

Varilrix

Intervention Type BIOLOGICAL

Vaccination against varicella in selected cartilage-hair hypoplasia patients

Interventions

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Varilrix

Vaccination against varicella in selected cartilage-hair hypoplasia patients

Intervention Type BIOLOGICAL

Other Intervention Names

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ATC J07BK01

Eligibility Criteria

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Inclusion Criteria

* genetically confirmed cartilage-hair hypoplasia diagnosis
* age \>12 months
* no history of chickenpox
* informed concent of the patient/caregiver.

Exclusion Criteria

* positive serum IgG for varicella zoster virus
* low CD4+ cell counts (\<15% or \<200 cells/mm3)
* clinical or laboratory signs of severe immunodeficiency
* ongoing intravenous or subcutaneous immunoglobulin treatment
Minimum Eligible Age

12 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Helsinki University Central Hospital

OTHER

Sponsor Role lead

Responsible Party

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Paula Klemetti

MD, PhD, Consultant in pediatric gastroenterology and immunology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Outi Mäkitie, PhD

Role: STUDY_DIRECTOR

Helsinki University Central Hospital and University of Helsinki, Folkhälsan Research Centre, Helsinki Finland

References

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Vakkilainen S, Kleino I, Honkanen J, Salo H, Kainulainen L, Grasbeck M, Kekalainen E, Makitie O, Klemetti P. The Safety and Efficacy of Live Viral Vaccines in Patients With Cartilage-Hair Hypoplasia. Front Immunol. 2020 Aug 11;11:2020. doi: 10.3389/fimmu.2020.02020. eCollection 2020.

Reference Type DERIVED
PMID: 32849667 (View on PubMed)

Other Identifiers

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TYH2013336

Identifier Type: -

Identifier Source: org_study_id

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