Daprodustat
Daprodustat is an oral HIF prolyl-hydroxylase inhibitor approved by the FDA in 2023 for anaemia of chronic kidney disease in dialysis patients, and earlier in Japan. Like other HIF-PHIs it raises endogenous erythropoietin, making it a doping concern. WADA prohibits HIF activating agents at all times.
01 Overview
Daprodustat (Duvroq/Jesduvroq) stabilises HIF-alpha by inhibiting prolyl hydroxylases, increasing endogenous EPO and improving iron metabolism. The ASCEND trial programme supported non-inferiority to conventional ESAs for haemoglobin control in dialysis patients, leading to US approval in 2023 restricted to those on dialysis for at least four months.\n\nBecause it is an oral agent that boosts the body's own erythropoiesis, it is attractive for endurance doping and is explicitly covered by WADA's HIF activating agents category. Labelling carries a boxed warning about thrombosis and other cardiovascular risks common to the ESA class.
02 Mechanism
Inhibits HIF prolyl-4-hydroxylase enzymes, stabilising HIF-alpha, which upregulates erythropoietin and iron-handling genes to stimulate red blood cell production.
03 Dosing
| Tier | Dose | Route | Notes |
|---|---|---|---|
| Dialysis anaemia (medical) | 1–24 mg/day | Oral | Once daily, titrated to haemoglobin; dialysis patients |
04 Effects
| Effect | Magnitude | Evidence | |
|---|---|---|---|
| Raised endogenous erythropoietinIncreases the body's own EPO to correct or maintain haemoglobin orally. | Hb maintained/raised | Clinical | |
| Oral administrationBeing an oral tablet rather than an injectable makes it more convenient than conventional ESAs (and easier to misuse discreetly). | Tablet vs injection | Clinical |
05 Side effects
| Effect | Severity | Frequency | Evidence | Countermeasures |
|---|---|---|---|---|
| Thrombosis and cardiovascular eventsCarries a boxed warning for thromboembolic events, including vascular access thrombosis and MI, common to the class. | Severe | Boxed warning | Clinical | |
| HypertensionBlood pressure elevation reported in trials. | Moderate | Common | Clinical |