JAK Inhibitor (Selective JAK1 Inhibitor)
Pregnancy: D
Upadacitinib
Brand names: Rinvoq
Adult dose
Dose: 15 mg once daily (RA/PsA/AS/JIA); 30 mg once daily (atopic eczema)
Route: oral
Frequency: once daily
Max: 30 mg/day (atopic eczema); 15 mg/day (RA/PsA)
Extended-release tablet — swallow whole; multiple licensed indications; most selective JAK1 inhibitor available
Paediatric dose
Route:
Licensed ≥12 years for JIA (polyarticular/enthesitis-related); 15 mg once daily
Dose adjustments
Renal
Avoid if eGFR <15 ml/min
Hepatic
Avoid in severe hepatic impairment
Clinical pearls
- SELECT-COMPARE: superior to adalimumab for remission rates at week 26 in RA on MTX
- High herpes zoster rate — shingles vaccination recommended before initiation
- Broadest licensed indication among JAKi: RA, PsA, AS, atopic eczema, JIA, Crohn's disease, UC
Contraindications
- Pregnancy
- Active TB
- Active severe infections
- ANC <1 × 10⁹/L
Side effects
- Herpes zoster (shingles)
- URTI
- Nausea
- Dyslipidaemia
- DVT/PE
- Acne
- Malignancy risk
Interactions
- Strong CYP3A4 inhibitors (increase exposure)
- Live vaccines (CI)
- Immunosuppressants
Monitoring
- FBC
- LFTs
- Lipids
- Signs of infection
- Malignancy screening
Reference: BNFc; BNF 86; NICE TA665; SELECT-COMPARE trial. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- SMART Risk Score for Recurrent CVD · Cardiovascular Risk
- PCSK9 Inhibitor Eligibility Assessment · Lipid Management
- Immune-Related Adverse Events (irAE) -- GI Toxicity Colitis Grading · Oncology-Related GI
- irAE Hepatitis Grading (CTCAE) · Immunotherapy
- DIPSS — Dynamic International Prognostic Scoring System for Myelofibrosis · Cancer Prognosis
- BALL Score for Relapsed/Refractory CLL · Leukaemia
Pathways
- Cutaneous Lupus Erythematosus · BAD; EULAR
- Osteoporosis / Fragility Fracture · NOGG 2021; NICE NG147; NG224
- Arteritic AION (Giant Cell Arteritis) · RCOphth; BSR
- Osteoarthritis Hip / Knee Management · NICE NG226 (2022)
- Lupus Nephritis · EULAR/ERA-EDTA 2019; KDIGO 2024
- Rheumatoid Arthritis Management · NICE CG79 2018 / EULAR 2022