Treatment for Elevated Inflammatory Markers
The treatment of elevated inflammatory markers should be directed at the underlying cause of inflammation rather than treating the markers themselves, with therapy tailored to the specific disease process identified. 1
Identifying the Underlying Cause
Elevated inflammatory markers such as C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), or other acute phase reactants are not diseases themselves but indicators of underlying inflammatory processes. Before initiating treatment, it's essential to:
- Determine if elevation is due to:
- Autoimmune/rheumatologic disease
- Infection
- Cardiovascular disease
- Malignancy
- Other inflammatory conditions
Treatment Approaches Based on Underlying Condition
Rheumatologic/Autoimmune Diseases
For conditions like psoriatic arthritis, treatment follows a stepwise approach 1:
First-line options:
- NSAIDs for symptomatic relief
- Methotrexate as first-line disease-modifying therapy
Second-line options (if inadequate response):
- TNF inhibitors (etanercept, adalimumab, infliximab)
- IL-17 inhibitors (secukinumab, ixekizumab)
- IL-12/23 inhibitors (ustekinumab)
- JAK inhibitors (tofacitinib)
Treatment targets:
- Normalization of inflammatory markers
- Resolution of clinical symptoms
Autoinflammatory Diseases
For IL-1 mediated autoinflammatory diseases 1:
Treatment options:
- IL-1 blocking therapies (anakinra, canakinumab, rilonacept)
- Dose and frequency adjusted to control disease activity
Treatment targets:
- Complete remission (absence of clinical symptoms and normal inflammatory markers)
- CRP levels <5-10 mg/L indicating adequate control
COVID-19 Related Inflammation
For inflammatory phase of COVID-19 1:
Treatment options:
- Dexamethasone 6 mg daily for 10 days (for patients requiring oxygen)
- Anti-IL-6 therapies (tocilizumab, sarilumab) for severe cases with CRP ≥75 mg/L
- Anti-IL-1 (anakinra) for patients with high inflammatory state
Treatment targets:
- Reduction in inflammatory markers
- Improvement in clinical status
Giant Cell Arteritis and Polymyalgia Rheumatica
For GCA and PMR 1:
Treatment options:
- Glucocorticoids as initial therapy
- Steroid-sparing agents (methotrexate, tocilizumab)
Treatment targets:
- Maintenance of remission with minimal effective dose
- Monitoring of inflammatory markers for disease activity assessment
Ulcerative Colitis
For UC monitoring and management 1:
Monitoring strategy:
- Combined biomarker and symptom assessment
- Fecal calprotectin <150 mg/g or normal fecal lactoferrin to rule out active inflammation
Treatment decisions:
- Endoscopic assessment if elevated biomarkers with mild symptoms
- Treatment adjustment for elevated biomarkers with moderate-severe symptoms
Native Vertebral Osteomyelitis
For management of inflammatory markers in NVO 1:
Monitoring approach:
- Monitor ESR and CRP after approximately 4 weeks of antimicrobial therapy
- ESR >50 mm/hour and CRP >2.75 mg/dL after 4 weeks may indicate higher risk of treatment failure
Treatment considerations:
- Persistent elevation alone does not necessarily indicate treatment failure
- Clinical assessment should guide treatment decisions
Cardiovascular Risk Assessment
For patients with elevated inflammatory markers and cardiovascular risk 1:
Assessment approach:
- hs-CRP as preferred inflammatory marker
- Cutpoints: low risk (<1.0 mg/L), average risk (1.0-3.0 mg/L), high risk (>3.0 mg/L)
Treatment considerations:
- Statins for patients with elevated hs-CRP and intermediate cardiovascular risk
- Lifestyle modifications (weight loss, exercise, smoking cessation)
Common Pitfalls to Avoid
Treating the marker, not the disease
- Elevated inflammatory markers are indicators, not the primary target of therapy
Ignoring non-specific elevations
- Minor elevations may not require treatment if clinically insignificant
Over-reliance on markers alone
- Clinical assessment remains essential; markers should complement, not replace clinical judgment
Failure to repeat testing
- Single elevated values may be misleading; consider repeat testing 2-4 weeks apart
Missing the underlying cause
- Extensive workup may be needed to identify the source of inflammation
Remember that normalization of inflammatory markers should be part of a treat-to-target approach aimed at achieving clinical remission, preventing organ damage, and improving quality of life.