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Study identifier: NCT06544018 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Circadian Rhythm Deregulation in Patients With CAPS

Condition: Cryopyrin Associated Periodic Syndrome · Familial Cold Urticaria · Muckle-Wells Syndrome  ·  Sponsor: Hospices Civils de Lyon

PhaseNA
Planned participants30
Who can joinAll sexes, 6 Years to no upper limit
Healthy volunteersYes

About this study

Circadian rhythms are characterized by the physiology's adaptation to the alternation of day and night, enabling to adapt to the environment. These rhythms are generated by a molecular clock within each cell. At the molecular level, the circadian clock is based on a complex system of cell-autonomous transcription loops. These exert positive and negative feedback on themselves, generating cyclic transcriptional activity. * In the main loop, the BMAL1 transcription factor links with CLOCK or NPAS2 ( (Neuronal PAS Domain Protein 2) to activate transcription of per1,2 and 3 and cryptochrome (cry1 and cry2), which in turn repress BMAL1/CLOCK1 transcriptional activity.. The BMAL1/CLOCK complex also activates transcription of numerous target genes (per and cry, Rev-erb, etc.).. * other secondary loops refine the function of the first. Recent studies suggest that many aspects of innate immunity are controlled by circadian rhythm through inhibition of NLRP3 inflammasome activation. Nevertheless, the regulation of the NLRP3 inflammasome by the circadian clock has yet to be elucidated. Inflammasomes are molecular platforms that control caspase-1 activation and consequently the maturation of precursors of (interleukine) IL-1β, pro-IL-18, a pro-inflammatory cytokine. Since its discovery, its functions have been widely characterized as part of the innate immune response as a sensor of pathogens and danger signals (extracellular ATP (Adenosine triphosphate), atmospheric pollutants). NLRP3…

This description comes directly from the study's public registry record.

Talk to the study team

Alexandre Alexandre, PR  ·  04 27 85 61 26  ·  Alexandre.belot@chu-lyon.fr

Samira Plassart  ·  04 27 85 54 42  ·  Samira.plassart@chu-lyon.fr

Always discuss trial participation with your own doctor first.

Locations (6)

Hôpital Femme-Mère-Enfant (HCL)Bron, FranceRecruiting
Hôpital Claude Huriez (CHU de Lille)Lille, FranceNot Yet Recruiting
Hôpital de la Croix-Rousse (HCL)Lyon, FranceNot Yet Recruiting
Hôpital Edouard Herriot (HCL)Lyon, FranceNot Yet Recruiting
Hôpital Tenon (AP-HP)Paris, FranceNot Yet Recruiting
Hôpital Kremlin-Bicêtre (AP-HP)Paris, FranceNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT06544018