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Clinical Trial Summary

Filarial nematodes modulate the host immune response to promote regulatory and T helper type 2 immune responses, which were shown to influence concomitant infections. Indeed, several studies showed that increased susceptibility and worsened disease course of HIV, tuberculosis (TB) and malaria in filarial endemic regions. Moreover, the investigators demonstrated that M. perstans infections polarize and suppress immune responses with likely consequences for concomitant infections and vaccine-induced protection. In addition, the investigators observed altered frequencies of natural killer and regulatory T and B cells in filarial and M. tuberculosis co-infected individuals and that M. perstans influences CD4+ T cell function and immune responses upon purified protein derivative antigen stimulation. Nevertheless, the consequences of manifestation of TB disease and influence on TB vaccination remains unknown. Thus, the trial aim to address two main questions with high clinical relevance: 1) Does filarial infection influence disease severity and recovery in tuberculosis patients? 2) Does filarial infection influence Bacille Calmette-Guérin (BCG)-induced protection against disease progression in vaccinated children?

Clinical Trial Description


Study Design

Related Conditions & MeSH terms

NCT number NCT04547738
Study type Observational
Source University Hospital, Bonn
Contact Samuel Wanji, Prof. Dr.
Phone +237 77 72 43 84
Status Recruiting
Start date December 1, 2020
Completion date October 1, 2023

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