Trial | NCT01031966  Report issue

Title

A Pilot Study to Evaluate ZADAXIN's® (Thymalfasin) Ability to Enhance Immune Response to the H1N1sw Influenza Vaccine
A Pilot, Randomized, Open-label Study in Patients on Chronic Dialysis With End Stage Renal Disease (Esrd), to Evaluate the Enhancing Effect of Two Doses of Thymosin Alpha 1 on the Immunogenicity of h1n1sw Monovalent Vaccine

  • Phase

    Phase 2

  • Study Type

    Interventional

  • Status

    Completed No Results Posted

  • Study Participants

    120
The purpose of this explorative trial is to collect preliminary data on efficacy and safety of thymosin alpha 1 given at different doses as an adjuvant to egg-derived H1N1sw monovalent influenza vaccine in hemodialysis patients. The final aim is that of gathering information needed for planning a following confirmatory study on the efficacy and safety of Thymosin alpha 1 in the same indication.
The emergence and spread of the novel influenza A (H1N1) virus has been of great concern globally.

Uremic patients are especially vulnerable to infections and it is generally recommended to vaccinate patients with chronic renal insufficiency yearly against influenza. In patients on haemodialysis (HD) the vaccination response has been considered suboptimal.

Decreased antibody response to T-cell dependent antigens may be one factor that accounts for insufficient efficacy of certain vaccination programs (eg, influenza). Diminished antibody responses have also been reported in patients with end-stage renal disease. The evidence for impairment of cell-mediated immunity in hemodialysis patients has been attributed to incompetence in T-cell-mediated immune responses.

Since Zadaxin can enhance T-cell-dependent specific antibody production, the addition of Zadaxin (Thymosin alpha 1)to vaccination programs for immunocompromised individuals should be effective.
Study Started
Nov 30
2009
Primary Completion
May 31
2010
Study Completion
Jul 31
2010
Last Update
Mar 29
2012
Estimate

Biological MF59 adjuvanted H1N1 influenza monovalent vaccine

One/two single administration

  • Other names: Focetria™

Drug Thymosin alpha 1

1.6 mg, 3.2 mg seven days before vaccination (study day -7) and at the same day of vaccination (study day 0)

  • Other names: Zadaxin

Drug Thymosin alpha 1

1.6 mg, 6.4 mg seven days before vaccination (study day -7) and at the same day of vaccination (study day 0)

  • Other names: Zadaxin

H1N1sw monovalent vaccine Active Comparator

Thymosin alpha 1 3.2mg Experimental

Thymosin alpha 1 6.4 mg Experimental

Criteria 

Inclusion Criteria:

Signed written informed consent.
Age > 18 .
Chronic dialysis for ESRD .
Life expectancy of at least 6 months.

Exclusion Criteria:

They have any serious disease
They are hypersensitive to eggs, chicken protein, chicken feathers, influenza viral protein, neomycin or polymyxin or any other component of the vaccine.
They have a history of neurological symptoms or signs, or anaphylactic shock following administration of any vaccine.
Within the past 3 days, they have experienced fever (i.e., axillary temperature _ 38°C).
They have any condition which, in the opinion of the investigator, might interfere with the evaluation of the study objective.
No Results Posted