Disease & disorder
complement component C1r/C1s deficiency
MONDO:0009005
Lack of production of either functional C1r or C1s protein, due to a genetic defect. Approximately 60% of patients with a C1r/C1s deficiency will develop a severe systemic lupus erythematosus at an early age. Patients also present with frequent sinopulmonary infections often with Streptococcus pneumoniae.
Research intelligence
Directly mapped studies only · unique clinical trialsCurrent registry observations. Phase counts may overlap. Study start dates are not registry registration dates. Investigational interventions are not approved-treatment recommendations.
Medications under investigation
Verified disease and drug mappings that co-occur within the same study; not evidence of effectiveness.
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MONDO disease family
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Recruiting studies by city
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Trial status
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Trial phase
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Study start year
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Investigated drug interventions
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Background context
complement component C1r/C1s deficiency
Background only. Canonical identity remains MONDO; clinical-trial relationships come from ClinicalTrials.gov.Drugs being studied
Disease identity and terminology: MONDO. Trial relationships: ClinicalTrials.gov.