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ZYNYZ: baseline renal PK versus immune-mediated nephritis
Product / population
Adult IV ZYNYZ for labeled oncology indications. Baseline pharmacokinetics and immune-mediated nephritis management are different questions.
DailyMed / product prescribing information · Adult IV ZYNYZ for labeled oncology indications. Baseline pharmacokinetics and immune-mediated nephritis management are different questions.
Pharmacokinetic observation only. A drug-exposure observation is not itself a dose recommendation.
Before using this finding
eGFR >=26 mL/min/1.73 m2 studied; dialysis not established.
Dialysis evidence: No dialysis regimen established in selected content
Selected named sections summarized; not a complete monograph or independent clinician approval.
Section 12.3 and Table 1, nephritis with renal dysfunction
Section 12.3 and Table 1, nephritis with renal dysfunction
Situation
Source-specific guidance
Baseline renal PK
Studied eGFR >=26 mL/min/1.73 m2; not a dialysis protocol.
Nephritis: grade 2 or 3 creatinine increase
Withhold; apply the full resumption criteria.
Nephritis: grade 4 creatinine increase
Permanently discontinue.
Read the retained text before reformatting
Baseline eGFR at least 26 mL/min/1.73 m2 did not meaningfully affect exposure. This does not waive nephritis precautions. For nephritis with renal dysfunction, withhold for grade 2 or 3 creatinine increases and permanently discontinue for grade 4. Resume only after improvement to grade 0-1 and steroid taper. Permanently discontinue if resolution is not achieved within 12 weeks of starting steroids or prednisone-equivalent dosing cannot fall below 10 mg/day within 12 weeks. No dialysis regimen is established by the selected PK analysis.
RDM71-retifanlimab-zynyz-label-1 · Source locator: Section 12.3 and Table 1, nephritis with renal dysfunction
This reference does not select a regimen. Complete the indication, measured/estimated renal function and trend, dialysis setting, source rationale, monitoring and reassessment plan in your institution's approved documentation system. Confirm the complete current source before adopting its regimen.
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