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Reconsidering ATT in patients with advanced cancer using the CoClarity webtool

Reconsidering Antithrombotic Therapy in patients with advanced cancer using the CoClarity shared decision support tool – The CoClarity Trial - Reconsidering Antithrombotic Therapy in patients with advanced cancer using the CoClarity shared decision support tool – The CoClarity Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON57960
Enrollment
112
Registered
2025-02-21
Start date
2025-11-14
Completion date
Unknown
Last updated
2026-03-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bleeding and thrombosis symptoms bleedings and symptoms of a bloodcloth in the vessels

Interventions

We're evaluating a complex intervention, which includes a comprehensive training program for health care professionals, ensuring continuity of care and the implementation of the CoClarity SDST. We wil

Sponsors

Leids Universitair Medisch Centrum
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Criterion A: 18 years or older  Use of at least one ATT type, (i.e. Vitamin K antagonists (B01AA), direct oral anticoagulants (B01AE/B01AF), heparins (B01AC), thrombocyte aggregation inhibitors (B01AC)) Have a malignant tumor which cannot or will not be cured A life expectancy of < 1 year identified by using the surprise question: “would I be surprised if this person died within the next 12 months Willing and able to provide informed consent    Criterion B: Meet at least one of the specific ATT reconsideration trigger criteria. Decline in performance as observed by a physicianAdmission to a hospice or palliative care unit First visit palliative care team  Stop anticancer treatment  Initiation of palliative chemotherapyA bleeding event, with no clear indication to either continue or discontinue ATT An advance care planning (ACP) conversation

Exclusion criteria

Exclusion criteria: A potentially included patient who meets any of the following criteria will be excluded from participation in this study:A life expectancy of less than 2 weeks, according to the physician Does not speak the language of the trial country or have other communication issues Inability to use a digital tool, such as patients who have severely impaired vision or patients who have no access to internet connection.  Participation in clinical trial testing a new ATT, e.g. FXI.  If it is abundantly clear that a patient must continue with the treatment, e.g. ATT indication for a mitral valve. 

Design outcomes

Primary

MeasureTime frame
To test the effectiveness of implementation of the CoClarity SDST on bleeding events and symptoms related to TE events.in patients with cancer in the last phase of their lives. The primary outcome will be a composite of a) the occurrence of any new bleeding and b) the occurrence of symptoms attributable to a new TE events. We consider the endpoint to be met if either of these two outcomes occur.

Secondary

MeasureTime frame
To test the effectiveness and efficacy of implementation of the CoClarity SDST on: All visible or symptomatic bleeding events Symptoms related to potential TE events Bleeding severity TE symptoms related severity Fatigue ATT use Overall health related QoL Functioning  Frailty Patient involvement in SDM Decisional conflict  Survival To study cost-effectiveness of implementing the CoClarity SDST To study impact of implementation of the CoClarity SDST on: Continuation, discontinuation, dose reduction or ATT type switch, including timing of the decision and effectuation into prescribing and actual administration of medication 

Countries

Netherlands, Poland, Spain, United Kingdom

Contacts

Public ContactSP Mooijaart

Leids Universitair Medisch Centrum

coclarity@lumc.nl0715266640

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Mar 20, 2026