- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus NCT07659106
Decision Aid for Anticoagulation Duration After Unprovoked Venous Thromboembolism (DECIDE-VTE)
Enabling and Engaging Patients to Decide Indefinite Versus Short-Term Anticoagulation for Venous Thromboembolism (DECIDE-VTE)
Venous thromboembolism (VTE), including deep vein thrombosis and pulmonary embolism, is a common condition that is typically treated with blood thinners (anticoagulants). After completing at least 3 months of treatment for a first unprovoked or weakly provoked VTE, patients and clinicians must decide whether to stop anticoagulation or continue treatment for a longer period. Continuing anticoagulation reduces the risk of another blood clot but increases the risk of bleeding. Because both options involve important benefits and risks, this decision should reflect the patient's values and preferences.
The DECIDE-VTE study will evaluate whether a patient decision aid can improve decision-making for patients facing this choice. The decision aid provides evidence-based information about the risks and benefits of continuing versus stopping anticoagulation and includes a values clarification exercise to help patients identify what matters most to them.
This multicentre batched stepped-wedge cluster randomized trial will be conducted in 12 thrombosis clinics across Canada. Clinics will transition from usual care to implementation of the patient decision aid according to a randomized schedule. The primary outcome is decisional conflict immediately following the anticoagulation decision visit, measured using the Decisional Conflict Scale. Secondary outcomes include patient knowledge, treatment decisions, decisional regret, concordance with the chosen treatment strategy, recurrent venous thromboembolism, major bleeding, all-cause mortality, and implementation outcomes.
Tutkimuksen yleiskatsaus
Tila
Interventio / Hoito
Yksityiskohtainen kuvaus
Venous thromboembolism (VTE), including deep vein thrombosis and pulmonary embolism, is commonly treated with anticoagulation. After completing initial anticoagulation for a first unprovoked or weakly provoked VTE, patients and clinicians must decide whether to discontinue anticoagulation or continue treatment long term. This is a preference-sensitive decision because continued anticoagulation reduces the risk of recurrent VTE but increases the risk of bleeding.
The DECIDE-VTE Patient Decision Aid was developed to support shared decision-making about anticoagulation duration. The tool provides structured information about treatment options, recurrence and bleeding risks, and includes a values-clarification exercise to help patients consider which outcomes and treatment burdens matter most to them.
This study is a pragmatic, multicentre, batched stepped-wedge cluster randomized trial. Participating thrombosis clinics begin in the usual care phase and transition to implementation of the DECIDE-VTE Patient Decision Aid according to a randomized schedule. Randomization occurs at the clinic level to reduce contamination between study conditions and to reflect real-world implementation of the decision aid into routine thrombosis clinic care.
The study will assess whether integrating the DECIDE-VTE Patient Decision Aid into clinical care improves decision quality compared with usual care, and will also evaluate implementation-related measures relevant to future use of the tool in practice.
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Opiskeluyhteys
- Nimi: Harika Dasari
- Puhelinnumero: 5144319353
- Sähköposti: harika.dasari@rimuhc.ca
Opiskelupaikat
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Alberta
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Calgary, Alberta, Kanada, T2N 1N4
- University Of Calgary
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Ottaa yhteyttä:
- Jill Baxter
- Puhelinnumero: 403-944-5246
- Sähköposti: jbaxter@ucalgary.ca
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Päätutkija:
- Leslie Skieth, MD FRCPC
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British Columbia
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Vancouver, British Columbia, Kanada, V5Z 1N1
- Vancouver General Hospital
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Ottaa yhteyttä:
- Edward Wong
- Puhelinnumero: 22966 604-875-4111
- Sähköposti: edward.wong@bccancer.bc.ca
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Päätutkija:
- Rick Ikesaka, MD MSc. FRCPC DRCPSC
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Ontario
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Ottawa, Ontario, Kanada, K1H 8L6
- Ottawa Hospital - General Campus
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Ottaa yhteyttä:
- Amanda Pecarskie
- Puhelinnumero: 78804 6137378899
- Sähköposti: apecarskie@ohri.ca
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Päätutkija:
- Deborah Siegal, MD MSc FRCPC
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Quebec
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Montreal, Quebec, Kanada, H3T 1E2
- Sir Mortimer B. Davis Jewish General Hospital
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Ottaa yhteyttä:
- Elena Shulikovsky
- Puhelinnumero: 23703 514-340-8222
- Sähköposti: eshulikovsky@jgh.mcgill.ca
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Montreal, Quebec, Kanada, H4A 3J1
- Research Institute of McGill University Health Centre
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Ottaa yhteyttä:
- Sidra Ahmed
- Puhelinnumero: 514-934-1934
- Sähköposti: Sidra.Ahmed@rimuhc.ca
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
- Vanhempi Aikuinen
Hyväksyy terveitä vapaaehtoisia
Kuvaus
Inclusion Criteria:
- Age 18 years or older
- First episode of objectively confirmed unprovoked or weakly provoked venous thromboembolism (VTE)
- Objectively confirmed proximal deep vein thrombosis and/or segmental or greater pulmonary embolism
- Completed at least 3 months of therapeutic anticoagulation and currently receiving anticoagulation
- Enrollment within 12 months of diagnosis of the index/qualifying VTE event
- Able to provide written informed consent
- Able to participate in shared decision-making in English or French
Exclusion Criteria:
- Recurrent unprovoked or weakly provoked VTE I(i.e. multiple unprovoked/weakly provoked VTE)
- Index/qualifying VTE is a strongly provoked VTE (e.g., associated with major surgery, major trauma, plaster cast immobilization, or prolonged bed rest)
- Index/qualifying VTE associated with a persistent strong provoking risk factor (e.g., active cancer or ongoing immobility)
- Women at very low recurrence risk (HERDOO2 score 0-1)
- High bleeding risk such that anticoagulation should be discontinued
- Requirement for long-term anticoagulation for another indication (e.g., atrial fibrillation)
- Prior dedicated long-term anticoagulation Decision Visit regarding anticoagulation duration
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Tukevaa hoitoa
- Jako: Satunnaistettu
- Inventiomalli: Crossover-tehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Ei väliintuloa: Usual Care
Participants receive standard thrombosis clinic care and clinician-patient discussions regarding continuation versus discontinuation of anticoagulation following a first unprovoked or weakly provoked venous thromboembolism.
No structured patient decision aid is used.
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Kokeellinen: DECIDE-VTE Patient Decision Aid
Participants receive the DECIDE-VTE Patient Decision Aid in addition to usual thrombosis clinic care.
The decision aid provides evidence-based information regarding the risks and benefits of continuing versus discontinuing anticoagulation after a first unprovoked or weakly provoked venous thromboembolism and includes a structured values clarification exercise to support shared decision-making.
Participants and clinicians make the final treatment decision together during the Decision Visit.
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The DECIDE-VTE Patient Decision Aid is a bilingual (English/French) evidence-based decision support tool designed for adults with a first unprovoked or weakly provoked venous thromboembolism who are deciding whether to continue or discontinue anticoagulation after completing at least 3 months of therapy.
The decision aid presents balanced information regarding the risks and benefits of extended anticoagulation, including risks of recurrent venous thromboembolism and major bleeding, and incorporates a structured values clarification exercise to support shared decision-making between patients and clinicians during the anticoagulation Decision Visit.
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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Decisional Conflict Scale (DCS) Total Score
Aikaikkuna: Decision Visit (Day 0)
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Decisional conflict measured using the validated 16-item Decisional Conflict Scale (DCS).
Total scores range from 0 to 100, with higher scores indicating greater decisional conflict.
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Decision Visit (Day 0)
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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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VTE Knowledge Assessment Score
Aikaikkuna: Decision Visit (Day 0)
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Patient knowledge regarding recurrent venous thromboembolism and bleeding risks assessed using a 6-item true/false questionnaire.
Scores range from 0 to 6, with higher scores indicating greater knowledge.
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Decision Visit (Day 0)
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Treatment Decision
Aikaikkuna: Decision Visit (Day 0)
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Patient decision regarding continuation versus discontinuation of anticoagulation therapy.
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Decision Visit (Day 0)
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Decisional Regret Scale (DRS) Score
Aikaikkuna: 3-Month Follow-Up Visit (Day 90 ± 14 days)
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Decisional regret measured using the validated 5-item Decisional Regret Scale (DRS).
Scores range from 0 to 100, with higher scores indicating greater regret regarding the treatment decision.
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3-Month Follow-Up Visit (Day 90 ± 14 days)
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Concordance With Treatment Decision
Aikaikkuna: 3-Month Follow-Up Visit (Day 90 ± 14 days) and 12-Month Follow-Up Visit (Day 365 ± 60 days)
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Agreement between the treatment decision made at the Decision Visit (Day 0) and participant-reported anticoagulant use status at follow-up.
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3-Month Follow-Up Visit (Day 90 ± 14 days) and 12-Month Follow-Up Visit (Day 365 ± 60 days)
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Recurrent Venous Thromboembolism
Aikaikkuna: 12-Month Follow-Up Visit (Day 365 ± 60 days)
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Adjudicated objectively confirmed recurrent venous thromboembolism assessed using the INVENT VERDICT adjudication process.
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12-Month Follow-Up Visit (Day 365 ± 60 days)
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Major Bleeding
Aikaikkuna: 12-Month Follow-Up Visit (Day 365 ± 60 days)
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Adjudicated objectively confirmed major bleeding defined according to International Society on Thrombosis and Haemostasis criteria.
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12-Month Follow-Up Visit (Day 365 ± 60 days)
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All-Cause Mortality
Aikaikkuna: 12-Month Follow-Up Visit (Day 365 ± 60 days)
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Death from any cause identified through medical record review and, where necessary, provincial vital statistics records.
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12-Month Follow-Up Visit (Day 365 ± 60 days)
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Muut tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Patient Decision Aid Use Time
Aikaikkuna: Decision Visit (Day 0)
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Time in minutes spent interacting with the DECIDE-VTE Patient Decision Aid.
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Decision Visit (Day 0)
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Physician Visit Duration
Aikaikkuna: Decision Visit (Day 0)
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Time in minutes from the participant entering the clinic room with the physician until completion of the clinical encounter.
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Decision Visit (Day 0)
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Yhteistyökumppanit ja tutkijat
Tutkijat
- Päätutkija: Marc Rodger, MD MSc FRCPC, McGill University
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Arvioitu)
Ensisijainen valmistuminen (Arvioitu)
Opintojen valmistuminen (Arvioitu)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Avainsanat
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
- DECIDE-VTE-SWRCT
- 202509PJT-552796-CID-CFAC-5562 (Muu tunniste: Canadian Institute of Health Research)
Yksittäisten osallistujien tietojen suunnitelma (IPD)
Aiotko jakaa yksittäisten osallistujien tietoja (IPD)?
IPD-jaon aikakehys
IPD-jaon käyttöoikeuskriteerit
IPD-jakamista tukeva tietotyyppi
- STUDY_PROTOCOL
- MAHLA
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