End-of-life anticoagulation · a service for North Wales
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Haematology · Oncology · Palliative Care / service proposal

Anticoagulation at the end of life with cancer: from referral to a shared service

An evidence-based approach for North Wales, built on NICE guidance and the European SERENITY programme.

PresenterDr Abdul Mannan FRCPath FCPS
Consultant Haematologist
Length10 minutes · 19 slides
Evidenceverified 11 October 2026
01 · How it works today

One route: a referral to haematology

Today's route
QuestionOncology or warda patient on anticoagulation is deteriorating
ReferralHaematologyphone advice or a clinic visit, one patient at a time
DischargeGP and district nursesthe prescription carries on
DefaultUntil death?no planned review or end date
What is missing
1
No shared decision

The patient and family are not part of the decision.

2
No named owner

Nobody holds the review once the patient leaves hospital.

3
No trigger, end date or audit

Continuation is never revisited or measured.

North Wales. There is no structured end-of-life anticoagulation service. A referral answers one question for one patient; it does not change the pathway.
Elsewhere in Wales. A regional, multi-institution CAT service followed 214 patients to death: 50% stayed on LMWH until death, 7% had clinically relevant non-major bleeding, and no VTE symptoms were recorded (Noble 2022).

Local context: service lead, Haematology (North Wales).

02 · The scale of the problem

Most patients carry on until death

Wales · SERENITY
77%

of people on antithrombotics when poor-prognosis cancer was diagnosed continued until death. n = 25,783; median survival 145 days; 32% on treatment at diagnosis.

Aldridge 2025, Br J Haematol

Denmark · SERENITY
37.5%

on antithrombotics at terminal illness declaration (median survival 57 days). Most continued until death: 58.8% of DOAC and 61.6% of VKA users.

Søgaard 2025, J Thromb Haemost · n = 86,732

Netherlands · SERENITY
8 days

median time from stopping to death in GP records. Only 22.1% of users discontinued at all; the commonest reason was recognising the terminal phase.

Abbel 2026, Ann Fam Med · n = 2,860

Netherlands · VKA
>80%

of VKA users with a life-limiting disease continued until the last month of life (median 14 days from stopping to death). Bleeding and thrombosis rates were similar on and off treatment.

Kempers 2026, Thromb Haemost · n = 18,145 · SERENITY

All four are SERENITY studies. The Welsh cohort used the national SAIL databank, so it describes our own population.
03 · Why it happens

A culture of continuation, and no owner

Who am I to say that I'm not going to take it

Title of the SERENITY patient interview study: 60 patients, 13 relatives, 4 countries (Baddeley 2025, Thromb Res). Patients were reluctant to stop alone; many deferred to a clinician whose role they valued highly.

Clinicians (80 interviewed, 4 countries)

Blurred roles and responsibilities, a "culture of continuation", and passivity about review.

We're in a silo medicine, where every specialist is in his corner.

FR12, geriatrician · Baddeley 2026, Res Pract Thromb Haemost · SERENITY

"Prescribing inertia"

Deference to the original prescriber, unclear ownership, and fear that patients will see stopping as giving up.

Jagosh 2025, PLoS Med · realist synthesis of 91 papers · SERENITY

UK clinicians (n = 186)

want national guidance
83%
routinely ask a colleague
56%
worry about medicolegal risk
53%

Shevlin 2025, Clin Med (Lond)

Europe (flash-mob survey, n = 208)

20% had never deprescribed antithrombotics in end-of-life care.

Martens 2025, Thromb Res · SERENITY WP1

04 · Benefit vs harm over a short horizon

In the time that is left, bleeds outnumber clots

0%10%20%30%
RHESO palliative units · bleeding
9.8%
RHESO · symptomatic DVT
0.5%
Dutch GP users · bleeding
28.5%
Dutch GP non-users · bleeding
22.0%
Dutch GP users · VTE
3.1%
Dutch GP non-users · VTE
3.0%
HIDDen (5 UK hospices, n = 343). 34% had a silent femoral DVT on admission; only 4 new DVTs in 21 days; DVT was not associated with survival.
RHESO (n = 1,199). 23 of the bleeds were fatal. Cumulative incidence at 3 months, with death as a competing risk.
Denmark (n = 86,732). At 1 year, users vs non-users: major bleeding 5.5% vs 4.0%; VTE 2.9% vs 3.8% (Søgaard 2025, SERENITY).

Tardy 2017 · Abbel 2026 (SERENITY; median follow-up ~6 weeks) · White 2019 · Søgaard 2025 · bars drawn to one 0–30% scale

05 · What stopping does, and who bleeds

Stopping did not raise thrombosis; it reduced bleeding

Discontinuing after home palliative care began · Ontario, n = 98,089

Chin-Yee 2022, CMAJ · adjusted HR (thrombosis, bleeding) and adjusted OR (home death) vs continuing

Independent predictors of clinically relevant bleeding · RHESO

Tardy 2017, J Thromb Haemost · Fine–Gray multivariable HR; previous bleeding = within 4 weeks

Observational data only. No randomised trial of stopping vs continuing has reported yet.
06 · The other side of the scale

This is not a case for stopping everyone

Recurrence
14.6

recurrent VTE per 100 person-years in the first 3 months after stopping CAT anticoagulation. Measured over months, not weeks.

van Hylckama Vlieg 2023, EClinicalMedicine

Acceptability

Palliative patients found LMWH acceptable, and many said it gave reassurance.

Noble 2005, Palliat Med · Noble 2006, BMJ

Indication

A recent symptomatic clot, a mechanical valve or a recent stent are different decisions from primary prevention.

Gurumurthy 2026, Res Pract Thromb Haemost

The aim is a decision, not a direction. Continue, time-limit with an end date, or deprescribe, drug by drug and with the patient.
07 · What NICE says, by trajectory

NICE covers the edges; the middle is ours

PhaseProphylaxisTreatment of established cancer VTE
Months"Consider pharmacological VTE prophylaxis for people who are having palliative care" NG89 1.7.1 · "Review VTE prophylaxis daily" 1.7.4"Offer … anticoagulation treatment for 3 to 6 months" NG158 1.3.15 · consider a DOAC 1.3.17 · tumour site, interactions, bleeding risk 1.3.16
WeeksDaily review with person, family and MDT NG89 1.7.4"Assess and discuss the benefits and risks of continuing, stopping or changing" NG158 1.4.1
Last days"Do not offer VTE prophylaxis to people in the last days of life" NG89 1.7.2"stop any previously prescribed medicines that are not providing symptomatic benefit or that may cause harm" NG31 1.5.1
The gap. No NICE recommendation addresses stopping established cancer-VTE treatment in the weeks before death.
The category error. NG89 1.7.2 is about prophylaxis. It does not decide treatment-dose anticoagulation, AF or a valve.

NICE NG89 (updated 2019), NG158 (updated 2023), NG31 (2015) · quoted verbatim, checked on nice.org.uk 11 Oct 2026

08 · A framework for each decision

Gurumurthy 2026: one path, drug by drug

StartPatient with limited life expectancy on an antithrombotic
1 · RestateRestate the indication and prognosis · estimate time-to-benefit against time-to-harm · discuss goals and preferences with the patient and family
2 · ScreenScreen for absolute contraindications
3aScreen modifiable risk factors and assess bleeding risk
3bContinue or modify: tailored to a short horizon, symptom control and the patient’s preference
StopAntithrombotics discontinued
4 · AgentChoose the agent by route (swallowing, PEG, food), renal and hepatic function
5 · DocumentDocument monitoring and reversal plan with reference to the patient’s wishes · hand over at every transition

Redrawn from Gurumurthy et al. Res Pract Thromb Haemost 2026;10:103459, Figure 1, "Framework for decision making on antithrombotic therapy at the end-of-life" · CC BY 4.0 · interpret by indication: expected benefit differs between AF and VTE

09 · If anticoagulation continues

Continuing is a plan too: agent, route, reversal

1 · RestateRestate the indication and estimate prognosis: weigh expected time-to-benefit against immediate time-to-harm
2 · GoalsClarify goals of care with the patient and family, including place of care
3 · ContraindicationsNone present: active bleeding or severe coagulopathy; severe hepato-renal failure. CNS disease or severe thrombocytopenia also raise bleeding risk
4 · Modifiable riskAddress modifiable bleeding risk factors
5 · AgentChoose the anticoagulant for the indication, a short horizon and the route
6 · ReassessReassess continuously, especially when care transfers between teams; revisit patient and family goals
↺ loop back to step 1 at every change in condition or care setting
SituationPractical point
WarfarinAvoid where possible: interactions, monitoring burden, a labile INR as intake falls
Poor appetiteTherapeutic rivaroxaban is better absorbed with food; apixaban can be given regardless of meals
Feeding tubeApixaban and rivaroxaban can be crushed into a tube ending in the stomach; dabigatran must not be opened or crushed
Falling eGFRDOAC and LMWH exposure rises; review dose, or whether to continue
Nausea, pill burdenSome prefer once-daily LMWH, which bypasses the gut
ReversalAgree in advance whether a bleed would prompt hospital transfer

Redrawn from Gurumurthy et al. 2026, Figure 2, "Suggested approach when a decision is made to continue anticoagulation at the end-of-life" · CC BY 4.0 · table from the same review, §8

10 · SERENITY · Horizon Europe grant 101057292

Europe is building the tool; the trial has started

PHASE 1 · UNDERSTAND PHASE 2 · DESIGN PHASE 3 · TEST WP1 Reviewrealist + flash mob WP2 CohortsDK · NL · Wales WP3 Interviewspatients, clinicians WP4 Delphi188 experts, 8 countries WP5 Toolshared decision app WP6 CoClarity trialcluster RCT · recruiting WP7 Disseminationguidelines, policy first UK inclusions, 2026 9 publications to date, including the Welsh cohort
Delphi consensus

Palliative care, oncology and general practice should be involved in deprescribing decisions, prompted by a clinical trigger or an estimated 3-month prognosis. Eleven outcomes were chosen for the trial.

Mahé 2026, Thromb Res · 24-member steering group

CoClarity

Tests the SERENITY shared decision support tool against usual care. Running in the Netherlands, Spain, Poland and the UK; first patients included.

serenity-research.eu, news 21 Apr 2026 and research pages, read 11 Oct 2026

11 · SERENITY Delphi · 188 experts, 8 countries

The consensus is a blueprint for the service

QuestionConsensus (Mahé 2026, Table 1)
WhenAt a triggering circumstance, or at a 3-month life expectancy. A 6-month time point is not recommended outside other triggers.
TriggersHigh bleeding risk · low platelets · low haemoglobin · high fall risk · patient preference · transition to palliative care · oral or subcutaneous route difficulty · anticancer drugs stopped · low thrombotic risk
Who decidesPrimary responsibility: oncologist, palliative care specialist and GP. Other relevant physicians, including haematology and cardiology, are contacted to take part.
Who is toldThe patient, family, nurse and the original prescriber.
ReassessAfter an intercurrent event, at a patient or carer request, and at follow-up visits. Not routinely every 4 weeks.
Before the MDTCollect the information systematically, for example in a checklist.
The North Wales decision aid is built as that checklist: the triggers, bleeding risk, feasibility and preferences, gathered before the MDT discussion.
12 · The proposed service

A shared service around the patient and family

"I think it has to be a joint decision." SP08, oncologist · Baddeley 2026

Patient and family

Owner: Oncology

Holds the prescription decision for patients under oncology care, as SERENITY's Delphi recommends.

Palliative care · family meetings

Prognosis, goals and the conversation; NG31 shared decision-making and a named lead.

Haematology · pharmacy · nursing

Complex cases, stewardship screen, interactions and renal dosing, and follow-through in the community.

13 · The pathway

From trigger to a written end date

1 · TRIGGER
Identify

Delphi triggers: ~3-month prognosis, transition to palliative care, bleeding risk, low platelets or Hb, route difficulty, anticancer drugs stopped, patient preference.

→
2 · SCREEN
Stewardship

Checklist before the MDT (Delphi): every antithrombotic, purpose, event date, dose, renal, interactions.

→
3 · MDT
Weekly review

Oncology, palliative care, haematology, nursing, pharmacy apply the decision aid.

→
4 · TALK
Family meeting

Goals, preferences, reversal intent, what would happen after a bleed or a clot.

→
5 · PLAN
Discharge

Decision, end or review date, owner and safety-net in the letter to GP, DN and hospice.

→
6 · REVIEW
Re-trigger

Intercurrent event, patient or carer request, follow-up visit (Delphi); prophylaxis daily (NG89 1.7.4).

Continue with review

Clear near-term benefit; route, monitoring, reversal plan and review trigger written down.

Time-limited · set an end date

Benefit uncertain or a reversible risk; end date plus explicit restart or stop criteria.

Deprescribe

No benefit in time, harm outweighs it, or the person declines; symptoms to watch for and who to call.

Synthesis of SERENITY Delphi (Mahé 2026), Gurumurthy 2026 framework, NICE NG31 1.3 and NG158 1.4.2 safety-net model · teaching pathway, not a validated protocol

14 · Family meetings and discharge planning

What the conversation and the letter must carry

Family meetingAnchor
Level of involvement wanted; honesty about the planNG31 1.3.1
Informed or involved? Patients range from deferring entirely to deciding alone; relatives may speak as one unit with the patientBaddeley 2025
Advance statement, ADRT or health and welfare LPA; goals and wishesNG31 1.3.2
Named lead, with out-of-hours contactsNG31 1.3.3
Why the drug was started; benefit expected, and when; bleeding and burdenGurumurthy 2026
Would a bleed or a clot prompt hospital transfer?Gurumurthy 2026
Discharge letterAnchor
Indication, prognosis band, bleed-risk amplifiersGurumurthy 2026 §8.4
Decision: continue, end date, or stoppedPathway
Route feasibility, e.g. tube-compatible agentGurumurthy 2026 §8.4
If stopped: symptoms to watch for, thrombosis contact, out-of-hoursNG158 1.4.2 model
Plan shared with patient, family and the whole teamNG31 1.3.6
In one hospice-discharge cohort, 54.5% had no documented reason for continuing anticoagulation (Kowalewska 2017, as reported in Gurumurthy 2026).
15 · Anticoagulation stewardship

Stewardship works when someone reviews every prescription

Montreal ASP
84%

of recommendations from a physician–pharmacist stewardship team were accepted; 64% of 553 reviews generated one, mostly dose and interaction changes.

Koolian 2022, Res Pract Thromb Haemost

What stewardship covers here

Indication and event date · dose for renal function · interactions with anticancer drugs NG158 1.3.16 · stop non-essential antiplatelets and NSAIDs · route feasibility · documentation.

Audit standards
Palliative prophylaxis reviewed dailyNG89 1.7.4
Prophylaxis stopped when dying recognisedNG89 1.7.2
Medicine review once dying recognisedNG31 1.5.1
Purpose and event date documentedlocal
Pharmacy is a local choice: the SERENITY Delphi did not list pharmacists among those to be informed, but stewardship evidence supports pharmacist review (Koolian 2022; call to action, Burnett 2022). Outcome effects still need evaluation, so the service starts with an audit.
16 · The decision aid

One screen for the MDT: NICE, bleeding risk, the plan

Weeks to ~3 monthsVTE treatment · 7 months2 bleeding flagsPlatelets 62 · EHA grade 2
SUGGESTED DIRECTION
Discuss deprescribing

Treatment beyond 3–6 months with a shortening prognosis and two bleeding flags. NG158 1.4.1: assess and discuss continuing, stopping or changing.

✓ NICE recommendations quoted for this patient · ✓ EHA platelet guidance · ✓ RHESO risk factors with hazard ratios · ✓ MDT trigger check · ✓ copy-ready summary for the notes

Inputs

Trajectory phase, purpose of each drug, time since VTE, platelet count, bleeding flags, swallowing and injections, what matters most.

Outputs

A suggested direction with reasons, the verbatim NICE text that applies, and a documentation checklist for the family meeting and discharge letter.

Teaching and pathway-development aid. Not a validated score; decisions rest with the treating team.
Open the decision aid →
17 · What I am asking for

Start small, measure, then grow

Months 0–3

Set up

Named leads in each discipline; agree triggers; one-page proforma; decision aid in the MDT.

Months 0–6

Baseline audit

On antithrombotics at SPC referral; documented purpose; continued to death; NICE standards.

Months 3–9

Pilot

Weekly virtual MDT slot; pharmacist stewardship screen; family-meeting template; discharge fields.

Months 9–12

Evaluate · align

Re-audit; patient and family feedback; adopt the SERENITY tool when published; explore CoClarity links.

Let's make continuing anticoagulation a decision, not a default.

References · PMIDs verified against PubMed · NICE checked on nice.org.uk, 11 Oct 2026

Abbel D, et al. Ann Fam Med 2026;24(2):104-110. PMID 41876113 · SERENITY

Aldridge SJ, et al. Br J Haematol 2025;207(5):2080-2090. PMID 40890090 · SERENITY

Baddeley E, et al. Res Pract Thromb Haemost 2026;10(3):103427. PMID 42017173 · SERENITY

Baddeley E, et al. Thromb Res 2025;253:109399. PMID 40651261 · SERENITY

Burnett AE, et al. A call to action for anticoagulation stewardship. Res Pract Thromb Haemost 2022;6(5):e12757. PMID 35865732

Chin-Yee N, et al. CMAJ 2022;194(35):E1198-E1208. PMID 36096505

Falanga A, et al. EHA guidelines on antithrombotic treatments in thrombocytopenic patients with cancer. HemaSphere 2022 (Zotero BMVUKAPQ)

Goedegebuur J, et al. Thromb Res 2023;228:54-60. PMID 37276718 · SERENITY protocol

Gurumurthy G, et al. Res Pract Thromb Haemost 2026;10(3):103459. PMID 42027311

Jagosh J, et al. PLoS Med 2025;22(8):e1004663. PMID 40853973 · SERENITY

Kempers EK, et al. Thromb Haemost 2026;126(7):714-728. PMID 39855271 · SERENITY

Koolian M, et al. Res Pract Thromb Haemost 2022;6(6):e12758. PMID 36186105

Mahé I, et al. Thromb Res 2026;258:109573. PMID 41548313 · SERENITY Delphi

Martens ESL, et al. Thromb Res 2025;245:109205. PMID 39667100 · SERENITY flash mob

NICE NG31 (2015); NG89 (2018, updated 2019); NG158 (2020, updated 2023)

Noble S, Banerjee S, Pease NJ. BMJ Support Palliat Care 2022;12(e6):e834-e837. PMID 31239260

Noble SI, Finlay IG. Palliat Med 2005;19(3):197-201. PMID 15920933

Noble SI, et al. BMJ 2006;332(7541):577-80. PMID 16459340

SERENITY consortium. serenity-research.eu (research, publications, news), read 11 Oct 2026

Shevlin T, et al. Clin Med (Lond) 2025;25(5):100505. PMID 40854421

Søgaard M, et al. J Thromb Haemost 2025;23(1):190-200. PMID 39393778 · SERENITY

Tardy B, et al. J Thromb Haemost 2017;15(3):420-428. PMID 28035750 · RHESO

van Hylckama Vlieg MAM, et al. EClinicalMedicine 2023;64:102194. PMID 37731937

White C, et al. Lancet Haematol 2019;6(2):e79-e88. PMID 30709436 · HIDDen

All evidence on antithrombotic continuation at the end of life is observational. Kowalewska 2017 (family and discharge slide) is quoted from Gurumurthy 2026 and was not re-verified. The pathway and decision aid are teaching syntheses awaiting local governance.