Blood Study of Immune Cells in Sarcoidosis and Tuberculosis
Compares immune cells in blood samples from people with sarcoidosis and tuberculosis.
Plain-language title generated from the registry record
Registry title: MoMa Signature During Granulomatosis
Key facts
- Where
- Paris, FranceSee the site
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with sarcoidosis or tuberculosis. Everyone gives a blood sample so researchers can study certain immune cells.
- Age
- Over 18 years
- Sex
- Men and women
- Disease stage
- A diagnosis of sarcoidosis or of tuberculosis.
Main reasons for not taking part
- HIV infection
- Pregnant or breastfeeding women
- People under legal protection, guardianship or curatorship
- No signed consent
- Other causes of granuloma, unless later found to be sarcoidosis or tuberculosis
Read by machine on 12 November 2026.
Where in France
- Hôpital BichatParis, FranceContact: Karim SACRE, MD, PhDTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- Assistance Publique - Hôpitaux de Paris
- Trial code
- NCT05916638
- Record updated
- 3 March 2026
- Original description
Sarcoidosis is a systemic inflammatory disease characterized by unspecific granuloma formation. Our hypothesis is that granuloma formation and maintenance mainly relies on the overactivation of monocytes (Mo) and macrophages (Ma). To this end, the study aims (i) to define MoMa systemic signature in sarcoidosis, (ii) to characterize this signature in situ on tissue samples, and (iii) to identify causative factors that participate to the MoMa chronic overactivation. Thus, a cohort of sarcoidosis patients will be compared with tuberculosis patients. The MoMa systemic signature will be defined on whole blood (TruCulture model) and then in situ through different methods (multi-parameter spectral flow cytometry, RNA-seq, Luminex, imaging mass cytometry). The epigenome of monocytes will be studied thanks to CUT\&Tag. The MoMa systemic signature will be defined ex vivo at different time points during the course of the disease with phenotypic, transcriptomic, cytokine and functional approaches. The previously identified signature will be studied in situ and completed by the characterization of granuloma architecture and microenvironmental interactions, which could be modulated by epigenetic modifications. Hence, the epigenome of monocytes will be analyzed in two groups (sarcoidosis and tuberculosis). These results would allow to better understand sarcoidosis physiopathology and, in fine, may raise new therapeutic strategies. Finally, the study could challenge the dogma on innate immunity/auto-inflammation versus adaptive immunity/auto-immunity/memory.Read full original descriptionShow less
Role of Monocytes (Mo) and Macrophages (Ma) in Sarcoidosis and in Tuberculosis
Sarcoidosis is a systemic inflammatory disease characterized by unspecific granuloma formation. Our hypothesis is that granuloma formation and maintenance mainly relies on the overactivation of monocytes (Mo) and macrophages (Ma). To this end, the study aims (i) to define MoMa systemic signature in sarcoidosis, (ii) to characterize this signature in situ on tissue samples, and (iii) to identify causative factors that participate to the MoMa chronic overactivation. Thus, a cohort of sarcoidosis patients will be compared with tuberculosis patients. The MoMa systemic signature will be defined on whole blood (TruCulture model) and then in situ through different methods (multi-parameter spectral flow cytometry, RNA-seq, Luminex, imaging mass cytometry). The epigenome of monocytes will be studied thanks to CUT\&Tag. The MoMa systemic signature will be defined ex vivo at different time points during the course of the disease with phenotypic, transcriptomic, cytokine and functional approaches. The previously identified signature will be studied in situ and completed by the characterization of granuloma architecture and microenvironmental interactions, which could be modulated by epigenetic modifications. Hence, the epigenome of monocytes will be analyzed in two groups (sarcoidosis and tuberculosis). These results would allow to better understand sarcoidosis physiopathology and, in fine, may raise new therapeutic strategies. Finally, the study could challenge the dogma on innate immunity/auto-inflammation versus adaptive immunity/auto-immunity/memory.
Inclusion: Male and female > 18 years old; Diagnosis of sarcoidosis and of tuberculosis; Affiliated to medical insurance.
Exclusion: HIV infection; Absence of signed consent" Secondary exclusion criteria Other causes of granulomatosis ultimately identified as sarcoidosis or tuberculosis; pregnant or breastfeeding woman; Patient under legal protection, guardianship or curators.