Observational studyPediatric rheumatology online journal2025
Chronic non-bacterial osteomyelitis in children- five-year standardized follow-up of a prospective observational cohort in the pre-biological era.
Observational study in Pediatric rheumatology online journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed.
- "Updates in chronic nonbacterial osteomyelitis: emerging insights across the age spectrum".Current opinion in rheumatology · 2026Review
- Chronic nonbacterial osteomyelitis and inflammatory bowel disease in children: A French national cohort.Journal of pediatric gastroenterology and nutrition · 2026Article
- How Organ Manifestations Beyond the Bone May Guide Risk Stratification and Treatment Decisions in Chronic Nonbacterial Osteomyelitis.Paediatric drugs · 2026Review
- [Chronic nonbacterial osteomyelitis/osteitis of childhood and adolescence].Zeitschrift fur Rheumatologie · 2026Review
- Chronic nonbacterial osteomyelitis: a typical case and review.Frontiers in pediatrics · 2026Review
- Diagnostic and therapeutic insights from a cohort of chronic recurrent multifocal osteomyelitis (CRMO) patients.BMC rheumatology · 2025Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis prospective, long-term observational study, initiated in 2002, aimed to characterize clinical and laboratory data, whole body MRI detected lesions, and treatment responses in 37 juvenile patients with chronic non-bacterial osteomyelitis at a time when biological DMARDs were not yet standard therapy.
methodsPatients were assessed at baseline and at 1 (without MRI), 3, 6, 12, 18, 24, 36, 48, 60 months. All patients received naproxen as first-line therapy. Clinical management allowed for escalation to sulfasalazine, pamidronate, and glucocorticoids as needed. Treatment response was evaluated using the pedCNO disease activity score (30/50/70/90% improvement). Further composite numeric disease activity (DA) scores- the CARRA CDAS and a new MRI DAS - were applied.
resultsThe mean age at disease onset was 10.8 years, with a diagnostic delay of 5.8 months. Naproxen was the initial treatment in all patients. Second-line therapy was initiated in 10 patients due to inadequate improvement in physician global assessment of disease activity, patient-reported overall wellbeing or MRI lesions. Escalated therapies included sulfasalazine (n = 10), bisphosphonates (n = 1), methotrexate (n = 1), and short- (< 4 wks) or long-term oral glucocorticoids (n = 5 and n = 3, respectively). The mean number of clinical lesions decreased from 2.1 to 0.4 at 12 months and reached 0.15 at 60 months. MRI-detected lesions declined from 5.0 to 2.25 at 12 months and to 1.1 at 60 months.
conclusionMost children experienced favourable long-term outcomes. Clinical improvement occurred more rapidly than radiologic resolution. Patients with insufficient response to NSAIDs should be considered for a treat-to-target approach, including the use of conventional and biologic DMARDs.
trial registrationA trial registration EUDRA CT was not available at the time the study was started. Informed consent was given by all parents.
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