Avatrombopag
Brand names: Doptelet
Avatrombopag is an oral thrombopoietin receptor agonist used to raise the platelet count in chronic immune thrombocytopenia and in thrombocytopenia of chronic liver disease before a planned procedure.
Adult dose
Paediatric dose
Dose adjustments
Not stated - no renal-impairment dosing statement appears in any fetched section of this label (2.1-2.3, 3, 4, 5.1, 6, 7.1, 8.1, 8.4, 8.5). Absence here is not a statement that no adjustment is needed; source it separately if required.
No hepatic-function-based dose adjustment appears in any fetched section. Note that in the chronic liver disease indication the dose is selected by the PLATELET COUNT (60 mg if less than 40 x 10^9/L; 40 mg if 40 to less than 50 x 10^9/L), not by hepatic function or Child-Pugh class. The label's only related restrictions are 'DOPTELET should not be administered to patients with chronic liver disease in an attempt to normalize platelet counts' (2.2) and the section 5.1 thrombosis warning, whose closing sentence ('DOPTELET should not be administered to patients with chronic liver disease or immune...') is truncated at the source-fetch limit - read section 5.1 in full before use.
Dose auto-extracted from US FDA prescribing information (openFDA / DailyMed) — cross-check; US labelling may differ from UK — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.
Contraindications
- None. Section 4 verbatim: 'None.' - the fetched US label states no contraindications for DOPTELET. NOTE: the current page lists 'Hypersensitivity to avatrombopag' as a contraindication; that is not stated in this bundle and should be sourced from the UK SPC.
- Not a contraindication but the label's central warning (section 5.1): 'DOPTELET is a thrombopoietin (TPO) receptor agonist and TPO receptor agonists have been associated with thrombotic and thromboembolic complications in patients with chronic liver disease or immune thrombocytopenia... Consider the potential increased thrombotic risk when administering DOPTELET to patients with known risk factors for thromboembolism, including genetic prothrombotic conditions (e.g., Factor V Leiden, Prothrombin 20210A, Antithrombin deficiency or Protein C or S deficiency) and acquired risk factors (e.g., antiphospholipid syndrome).'
- Not a contraindication but a use restriction (section 2.2): 'DOPTELET should not be administered to patients with chronic liver disease in an attempt to normalize platelet counts.' Section 2.3 applies the same principle to ITP: 'Do not use DOPTELET to normalize platelet counts.'
Side effects
- Adults with chronic liver disease - most common adverse reactions (>= 3%), section 6: pyrexia, abdominal pain, nausea, headache, fatigue and peripheral oedema
- Adults with chronic immune thrombocytopenia - most common adverse reactions (>= 10%), section 6: headache, fatigue, contusion, epistaxis, upper respiratory tract infection, arthralgia, gingival bleeding, petechiae and nasopharyngitis
- Paediatric patients with persistent or chronic immune thrombocytopenia - most common adverse reactions (>= 10%), section 6: viral infection, nasopharyngitis, cough, pyrexia and oropharyngeal pain
- Thrombotic/thromboembolic complications (section 5.1): 'In patients with chronic liver disease, thromboembolic events (portal vein thrombosis) occurred in 0.4% (1/274) of patients receiving DOPTELET. In adult patients with chronic immune thrombocytopenia, thromboembolic events (arterial or venous) occurred in 7% (9/128) of patients receiving DOPTELET.'
Monitoring
- Chronic liver disease (2.2): 'Obtain a platelet count prior to administration of DOPTELET therapy and on the day of a procedure to ensure an adequate increase in platelet count.'
- Chronic ITP (2.3): 'After initiating therapy with DOPTELET, assess platelet counts weekly until a stable platelet count greater than or equal to 50x10 9 /L has been achieved, and then obtain platelet counts monthly thereafter. Obtain platelet counts weekly for at least 4 weeks following discontinuation of DOPTELET.'
- Increase platelet monitoring to twice weekly if the platelet count exceeds 400 x 10^9/L, and stop the drug until the count falls below 150 x 10^9/L before restarting one dose level lower (Table 2)
- If the formulation is switched between tablets and SPRINKLE granules: 'monitor platelet counts weekly until stable platelet counts are obtained and adjust dosing as needed before resuming monthly monitoring' (2.1)
- Thrombosis (5.1): 'Monitor platelet counts. Monitor for signs and symptoms of thromboembolic events and institute treatment promptly.'
- Monitor platelet counts and adjust the dose when a moderate or strong dual CYP2C9/CYP3A4 inhibitor is started during treatment (7.1)
Clinical monograph
How it works
It binds and activates the thrombopoietin receptor on megakaryocyte precursors, stimulating platelet production.
Prescribing in practice
- Because it raises platelet counts, there is a risk of thrombosis, so avoid driving the count above the target range and assess thrombotic risk.
- It is taken with food, which enhances absorption.
- When used for a procedure in liver disease it is given as a short defined course rather than continuous therapy.
Monitoring
Monitor the platelet count to guide dosing and to avoid excessive counts that increase thrombotic risk.
Counselling the patient
- Take the medicine with food.
- Attend blood tests so your platelet count can be checked and the dose adjusted.
- Report symptoms that could suggest a clot, such as leg swelling, chest pain or breathlessness.
Evidence & guidelines
NICE recommends avatrombopag for thrombocytopenia in chronic immune thrombocytopenia and to reduce bleeding risk around procedures in chronic liver disease.
Reference: NICE TA639 (Avatrombopag for ITP, 2020); NICE TA609 (Avatrombopag for chronic liver disease thrombocytopenia, 2020); BSH ITP Guidelines (2019 updated); Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).
Related
Curated clinical cross-links plus same-class fallbacks.
- Major Haemorrhage / Massive Transfusion · BCSH; RCOA; RCEM; RCS — BCSH Guidelines
- Anaemia Investigation · BSH / NICE
- Splenomegaly Workup · BSH; BMJ Best Practice
- Deep Vein Thrombosis Diagnosis and Treatment · NICE CG144 / NICE NG158
- Sickle Cell Crisis · BSH 2021 / BCSH
- Neutropenic Sepsis · NICE CG151 2012 / ESMO