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University of Groningen Improving antimicrobial therapy for Buruli ulcer Omansen, Till Frederik

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University of Groningen

Improving antimicrobial therapy for Buruli ulcer

Omansen, Till Frederik

IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite from it. Please check the document version below.

Document Version

Publisher's PDF, also known as Version of record

Publication date: 2019

Link to publication in University of Groningen/UMCG research database

Citation for published version (APA):

Omansen, T. F. (2019). Improving antimicrobial therapy for Buruli ulcer: Pre-clinical studies towards highly efficient, short-course therapy. University of Groningen.

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Improving antimicrobial therapy for Buruli ulcer

Pre-clinical studies towards highly efficient, short-course therapy

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This thesis was written within the PhD program at the Graduate School of Medical Sciences (GSMS), University Medical Center Groningen, the Netherlands.

Research described in this thesis was performed at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne Australia, the Center for Tuberculosis Research at the Johns Hopkins School of Medicine, Baltimore, USA and the Department of Neglected Tropical Diseases at the World Health Organization, Geneva, Switzerland. Financial supported was provided by the University of Groningen Junior Scientific Master-class (MD/PhD JSM grant), the Royal Netherlands Academy of Arts and Sciences (KNAW Ter Meulen grant), the Jan Kornelis de Cock Foundation, the Herpes Foundation Groningen and the Buruli ulcer Groningen Foundation. Their support is herewith gratefully acknowledged. Copyright © Till F. Omansen, 2019

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form of by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission from the author or from the copyright-owning journals of previously published chapters.

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Improving antimicrobial therapy

for Buruli ulcer

Pre-clinical studies towards highly efficient, short-course therapy

PhD thesis

to obtain the degree of PhD at the University of Groningen

on the authority of the Rector Magnificus prof. E. Sterken

and in accordance with the decision by the College of Deans. This thesis will be defended in public on

Monday 1 April 2019 at 14.30 hours

by

Till Frederik Omansen

born on 6 April 1989 in Bückeburg, Germany

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Supervisors

Prof. T.S. van der Werf Prof. Y. Stienstra Prof. E.L. Nuermberger

Assessment Committee

Prof. M.P. Grobusch

Prof. B. de Jong Prof. J.M. van Dijl

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Paranymphs

Christian Philipp Rausch Michael Edward Urbanowski

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Cover:

Artistic impression of an interview of a health psychologist with a villager in Benin. In this study we assessed the psychosocial stigma and needs of Buruli ulcer affected communi-ties. Consent for taking the original photograph was obtained.

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To my mother Gabriele Omansen

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COnTenTs

Chapter 1 Introduction and outline of the thesis 11 Chapter 2 Global epidemiology of Buruli ulcer from 2010 – 2017:

an analysis of the 2014 WHO programmatic targets

21 Chapter 3 Treatment for Buruli ulcer: the long and winding road to

antimicrobials-first

39 Chapter 4 Antimicrobial treatment of Mycobacterium ulcerans infection 47 Chapter 5 In-vivo imaging of bioluminescent Mycobacterium ulcerans:

a tool to refine the murine Buruli ulcer tail model

67 Chapter 6 In-vitro activity of avermectins against Mycobacterium ulcerans 87 Chapter 7 Pharmacokinetics of oral, high, repeated-dose avermectins in mice;

no in-vivo efficacy against M. ulcerans

97 Chapter 8 High-dose rifamycins enable shorter oral treatment in a murine

model of Mycobacterium ulcerans disease

109 Chapter 9 Oxazolidinones can replace clarithromycin in combination with

rifampin in a mouse model of Buruli ulcer

123

Chapter 10 Summary 137

Chapter 11 Discussion and Future Perspectives: The future of Buruli ulcer treatment

143

Nederlandse samenvatting 153

Acknowledgements 157

List of publications 161

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Improving antimicrobial therapy for Buruli ulcer Omansen, Till Frederik.. IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite