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Samuel G. Schumacher

@sgschumacher.bsky.social

Epidemiologist passionate about making good use of technology, statistics, methodology & evidence-informed decision making to advance global health. Scientist @WHO Global TB Programme

754 Followers  |  71 Following  |  75 Posts  |  Joined: 12.11.2024  |  2.4165

Latest posts by sgschumacher.bsky.social on Bluesky

Thanks for sharing this Peter, look forward to reading this

10.10.2025 18:26 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Draft document available here: buff.ly/20RW4db

๐Ÿ“ Submit feedback here: buff.ly/bHa1CKk

01.07.2025 08:44 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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๐Ÿ“ฃ WHO invites feedback on the draft Guidance on Evidence Generation for TB Preventive Treatment (GEG-TPT) โ€” open for public comment until 1 August 2025.

Help shape future @WHO guidelines on #TB prevention.

WHO Newsflash here:
buff.ly/zaIVweX

01.07.2025 08:44 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

WHO launches Public call for individual participant data on on BPaL, BPaLM, BPaLC and BDLC for the treatment of drug-resistant tuberculosis
buff.ly/r1SqM8m

23.06.2025 15:51 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Xpert MTB/RIFยฎ cycle threshold as a marker of TB disease severity; Implications for TB treatment stratification Introduction Recent trials have demonstrated that shortened four-month treatment durations are effective for the majority of people with tuberculosis (TB). However, there is a population of TB patient...

NEW PRE-PRINT (currently going through peer review)

In this secondary analysis of the RIFASHORT trial we classified TB disease severity at baseline and show that for the majority of people 4-months of rifampicin-based treatment, without the use of a quinolone, was non-inferior to the 6-month SOC.

13.06.2025 08:19 โ€” ๐Ÿ‘ 9    ๐Ÿ” 7    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 2

Funding acknowledgement:
This work is made possible through catalytic support from the Gates Foundationโ€”thank you for championing better, faster TB diagnostics. #Tuberculosis #Diagnostics #GlobalHealth #EvidenceGeneration #WHO #TBScience #Policy #Research

09.06.2025 10:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Kyung Hyun Oh ยท Jean Iragena ยท Soudeh Ehsani

09.06.2025 10:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Steering-group members:
Patricia Hall-Eidson ยท Alexei Korobitsyn ยท Carl-Michael Nathansonยท Nazir Ismail ยท Matteo Zignol ยท Irena Prat ยท Dr Kerri Viney ยท Dennis von Berlepsch ยท Cecily Millerยท Avinash Kanchar ยท Saskia Den Boon ยท Vineet Bhatia ยท Martin van den Boom ยท Ernesto Montero

09.06.2025 10:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Observers
Grania Brigden ยท Puneet Dewan ยท Smiljka de Lussigny ยท Adam Penn-Nicholson ยท Jacob Creswell ยท Anisa Ghadrshenas

09.06.2025 10:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Gavin Churchyard ยท Yanlin Zhao ยท Sabira Tahseen ยท Chishala Chabala ยท Alex Kay ยท Nora Engel ยท Augusto Geyer ยท Valeria Alcon ยท Yemisi Takwoingi ยท Shaheed Vally Omar ยท Siva Kumar Shanmugam ยท Daniela Cirillo ยท Christopher Coulter ยท Thomas Shinnick ยท Monde Muyoyeta ยท Mikashmi Kohli

09.06.2025 10:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Contributors ๐Ÿ™Œ
Claudia Denkinger ยท Grant Theron ยท Madhukar Pai ยท Mark Nicol ยท Rachel Louise Byrne ยท Nandita Venkatesan ยท Tejaswini DV ยท Jon Deeks ยท Achilles Katamba ยท Alice Zwerling ยท Hojoon Sohn ยท Holger Schรผnemann ยท Emily L MacLean ยท Anis Karuniawati

09.06.2025 10:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Timeline ๐Ÿ—“๏ธ Draft v0 with the Scientific GEG Development Group this month โ†’ iterative inputs mid-2025 โ†’ open review โ†’ publication by year-end. Stay tuned!

09.06.2025 10:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Why it matters๐Ÿ‘‡
โ€ข Bridges discovery โ†’ policy โ†’ impact
โ€ข Covers diagnostic accuracy, patient outcomes, costs, equity & feasibility
โ€ข Speeds scale-up of cutting-edge tools for people affected by TB.

09.06.2025 10:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

๐ŸŒ WHO kicks off work on the Guidance on Evidence Generation (GEG) for new #TB diagnostics! A clear playbook to help innovators & researchers produce the robust data WHO needs for rapid policy decisions. ๐Ÿš€ #GlobalHealth #EndTB

09.06.2025 10:47 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
WHO consultation on addressing asymptomatic TB in the TB response Many people with tuberculosis (TB) do not feel unwell and do not present to health services with symptoms. People with such asymptomatic forms of TB (aTB) may only be identified during screening with ...

Thanks Kyle! Glad it's still useful. Have you had a look at this as well?

www.who.int/news/item/28...

30.05.2025 20:52 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

If you are at a loose end next Tuesday, come hear me and @danieljgrint.bsky.social talk about endpoints in TB trials

Hybrid event, in London and online

Most of the same ideas available in written form here
www.thelancet.com/journals/lan...

#IDSky #TBSky @sgschumacher.bsky.social

20.05.2025 15:40 โ€” ๐Ÿ‘ 8    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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BEAT Tuberculosis: a randomized controlled trial of a 6-month strategy for rifampicin-resistant tuberculosis Background Safer, more effective treatment regimens for rifampicin-resistant tuberculosis are needed. We evaluated a novel six-month RR-TB treatment strategy. Methods We conducted a phase III,โ€ฆ

JUST PUBLISHED: Results from the BEAT Tuberculosis trial of the 6-month BDLLxC regimen, which supported recently released updated #TB treatment guidelines buff.ly/FX9WdNR
buff.ly/8w1xt4l

08.05.2025 10:36 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The potential impact of reductions in international donor funding on tuberculosis in low- and middle-income countries Background Tuberculosis services in many settings rely heavily on international donor funding. In 2025, the United States Agency for International Development (USAID) was dismantled, and other countri...

#Tuberculosis prevention and care relies heavily on international donor funding in many settings. In our latest preprint, we examine the potential impact of reductions in international donor funding for #TB - by the US and by other major donor countries. 1/8

www.medrxiv.org/content/10.1...

27.04.2025 06:16 โ€” ๐Ÿ‘ 45    ๐Ÿ” 24    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 3
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Cost analysis of the TB-PRACTECAL clinical trial on novel tuberculosis treatment regimens Clinical trials are considered to be the largest contributor to pharmaceutical development costs. However, public disclosure of the costs of individual clinical trials is rare. Meฬdecins Sans Frontieฬ€...

Just out! journals.plos.org/globalpublic... Clinical trial costs transparency as a tool to facilitate equitable access. A call to action! Please spread the word @msf.ca @madhupai.bsky.social @johngreensbluesky.bsky.social @catherineberry.bsky.social @sgschumacher.bsky.social @cdmitpih.bsky.social

24.04.2025 13:15 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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Diagnostic accuracy of swab-based molecular tests for tuberculosis usingโ€ฆ | Seda Y. The R2D2 TB Network Consortium has just released a preprint on the first-ever study evaluating the diagnostic accuracy of novel near-point-of-care MTB assays using tongue and sputum swabs for tubercul...

www.linkedin.com/posts/activi...

23.04.2025 15:39 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Global Drug Facility Announces Another Big Price Drop: 25% Reduction inโ€ฆ | Samuel G. Schumacher GOOD NEWS: 25% price reduction for pretomanid - price of a BPaLM treatment course is now $310. The vast majority of DR-TB patients should be able to benefit from this shorter, more effective regimen n...

GOOD NEWS: 25% price reduction for pretomanid - price of a BPaLM treatment course is now $310. The vast majority of DR-TB patients can benefit from this shorter, more effective regimen now. And it is cost-saving to health systems. Countries should transition away from other options rapidly.

17.04.2025 06:42 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

ยท establishes two new classes of TB diagnostic technologies for the initial detection of TB and resistance to rifampicin, and

ยท outlines current WHO TB diagnostic class determination and product assessment definitions and pathways

16.04.2025 15:29 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

ยท presents new recommendations on concurrent testing of respiratory and non-respiratory samples among people of all ages living with HIV and children without HIV or with unknown HIV status
...

16.04.2025 15:29 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

WHO launches an update on the consolidated guidelines to diagnose tuberculosis. This consolidated document:
ยท combines the WHO policy guidance on diagnosis of TB infection, disease and drug resistance into a single reference document
...

16.04.2025 15:29 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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WHO launches an update on the consolidated guidelines to diagnose #tuberculosis
createsend.com/t/d-CCE83795...

16.04.2025 15:29 โ€” ๐Ÿ‘ 12    ๐Ÿ” 8    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

These consolidated guidelines bring together all WHO guidelines related to treatment, combining previously separate documents on the treatment of drug-susceptible TB, drug-resistant TB and TB care & support.

15.04.2025 09:55 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

These new recommendations are based on recent clinical trials, including the BEAT-Tuberculosis Trial (South Africa, NCT04062201), and endTB Clinical Trial (NCT02754765), which provided evidence supporting the WHO review.

15.04.2025 09:55 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
WHO announces landmark changes in treatment of drug-resistant tuberculosis

JUST RELEASED: updated WHO TB treatment guidelines, including a recommendation for one new 6m and 3 new 9m regimens for DR-TB:
createsend.com/t/d-0CC16B59...

15.04.2025 09:55 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Did you miss @tb-lshtm.bsky.social & @ucltb.bsky.social Symposium? Or would you like to watch again? Good news: the full recording is now available! tinyurl.com/bdh8fymx
@sedonasweeney.bsky.social @kchorton.bsky.social @reinhouben.bsky.social

09.04.2025 09:43 โ€” ๐Ÿ‘ 3    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Guidance for best practices for clinical trials This guidance updates and adapts the previous work of the World Health Organization (WHO) on research capacity for the context of well-designed and well-implemented clinical trials as framed inโ€ฆ

The recently published WHO Guidance for best practices for clinical trials and the WHO Global Clinical Trials Forum are key to move this forward.
www.who.int/publications...

08.04.2025 12:59 โ€” ๐Ÿ‘ 0    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

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