Apixaban Versus Enoxaparin for Postpartum Venous Thromboembolism Prophylaxis
20 de julho de 2026 atualizado por: Ron Beloosesky MD
Apixaban Versus Enoxaparin for Thromboprophylaxis After Delivery
The purpose of this study is to compare the use of oral apixaban to subcutaneous enoxaparin for venous thromboembolism (VTE) prophylaxis in postpartum women at high risk for VTE.
The primary goal is to evaluate medication adherence rates and patient satisfaction with the treatment.
Visão geral do estudo
Status
Ainda não está recrutando
Condições
Intervenção / Tratamento
Descrição detalhada
Venous thromboembolism (VTE) is a leading cause of pregnancy-related morbidity and mortality.
Current guidelines recommend pharmacologic thromboprophylaxis with low-molecular-weight heparin (LMWH), such as enoxaparin, for postpartum women with increased risk factors.
However, common patient complaints related to enoxaparin include injection site reaction, pain, bruising, bleeding, nausea, vomiting, and cost.
Oral anticoagulation therapy, such as apixaban (an oral factor Xa inhibitor), could obviate many of these negative effects.This single-center, prospective, open-blinded randomized controlled trial aims to investigate the use of apixaban versus enoxaparin for VTE prophylaxis in the postpartum period.
Eligible postpartum women (after vaginal or cesarean delivery) with high risk for VTE will be randomized in a 1:1 ratio.
Tipo de estudo
Intervencional
Inscrição (Estimado)
150
Estágio
- Não aplicável
Contactos e Locais
Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.
Contato de estudo
- Nome: Nira Gridish
- Número de telefone: +972503027855
- E-mail: n_gridish@rambam.health.gov.il
Critérios de participação
Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Não
Descrição
Inclusion Criteria:
- Age ≥ 18 years.
- After Vaginal or C/S delivery.
- Need prophylactic treatment in a preventive dose.
- Presence of one or more high risk factors: Active infection, IBD, Heart disease, Type 1 diabetes with nephropathy, IV drug user, Surgical operation in Postpartum period, Emergency cesarean section.
OR presence of 2 low risk factors: Age > 35, post-partum hemorrhage > 1000 ml, Cesarean section, Hysterectomy, BMI > 30, Multiparity- Third birth or more, Active Smoking, Obstetric complications in current pregnancy (including preeclampsia, preterm birth before 37 weeks, active infection including chorioamnionitis, prolonged labor over 24 hours), Twin birth, Immobility, Large varicose veins, Stillbirth
Exclusion Criteria:
- Breast feeding.
- Predispose to hypercoagulability
- Familial history of VTE.
- Antiphospholipid syndrome (APS).
- Prior VTE.
- Anticoagulant treatment before or during pregnancy.
- BMI > 40
- History of severe renal or hepatic disease.
- Use of selective serotonin reuptake inhibitors or serotonin-norepinephrine reuptake inhibitors.
- Known diagnosis of bleeding dyscrasia (eg, von Willebrand disease).
- Spinal/epidural hematoma or spinal puncture.
- Active pathological bleeding or high risk of bleeding.
- Hemoglobin > 9 mg/dl before the delivery.
Plano de estudo
Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Prevenção
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
Experimental: Apixaban
Apixaban.
2.5 mg administered orally twice a day
|
Apixaban.
2.5 mg administered orally twice a day
Outros nomes:
|
|
Comparador Ativo: Enoxaparin
Enoxaparin. 40 mg (or 60 mg for weight > 91 kg) administered subcutaneously once a day
|
Enoxaparin 40 mg (or 60 mg for weight > 91 kg) administered subcutaneously once a day
Outros nomes:
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
General Treatment Convenience Assessed by a Study-Specific Patient Satisfaction Questionnaire
Prazo: up to 6 weeks postpartum
|
Patient-reported treatment convenience assessed using a study-specific questionnaire.
The primary measurement is an 11-point general convenience Visual Analog Scale (VAS) where patients rate the overall convenience of their assigned post-partum anticoagulant treatment (oral vs. subcutaneous) from 0 ("Not convenient at all") to 10 ("Very convenient").
Higher scores indicate a higher level of treatment convenience.
The outcome also incorporates a categorical question evaluating whether the treatment was easy to take/receive (categorized as: Agree, Neutral, Disagree).
|
up to 6 weeks postpartum
|
|
Medication Adherence Rate Assessed by Patient Self-Report
Prazo: Up to 6 weeks postpartum
|
Adherence to the prescribed thromboprophylaxis regimen, assessed via patient self-report within the study questionnaire.
Adherence is evaluated through targeted categorical questions regarding compliance: (1) whether the patient faced difficulties remembering to take the medication, and (2) whether any dose was missed during the hospitalization period.
Responses are categorized as "Agree," "Neutral," or "Disagree."
The outcome will be reported as the percentage of patients who demonstrated adherence (i.e., no missed doses and no memory difficulties) versus non-adherent patients
|
Up to 6 weeks postpartum
|
|
Treatment-Related Pain Intensity Assessed by a Visual Analog Scale (VAS)
Prazo: Up to 6 weeks postpartum
|
Intensity of pain specifically associated with the administration of the assigned anticoagulant therapy.
This is evaluated using an 11-point Visual Analog Scale (VAS) embedded in the questionnaire.
Patients who report experiencing treatment-related pain rate its intensity on a scale ranging from 0 ("No pain at all") to 10 ("Unbearable pain").
Lower scores indicate lower pain levels and better treatment tolerance.
|
Up to 6 weeks postpartum
|
|
Patient Treatment Preference and Recommendation Assessed by Self-Report
Prazo: Up to 6 weeks postpartum
|
Patient preference for future short-term preventative treatment options based on their experience during the clinical trial.
Patients select their preferred route of administration from three options: Oral tablets, Subcutaneous injections, or No preference.
Additionally, the assessment includes a categorical question on whether the patient would recommend their assigned treatment to another person (Categorized as: Agree, Disagree, Do not know).
Results will be presented as the proportion (%) of patients in each preference and recommendation category.
|
Up to 6 weeks postpartum
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Incidence of Venous Thromboembolism (VTE)
Prazo: up to 6 weeks postpartum
|
Occurrence of VTE event
|
up to 6 weeks postpartum
|
|
Incidence of major bleeding and bleeding events
Prazo: up to 6 weeks postpartum
|
Major bleeding and bleeding events defined according to the International Society on Thrombosis and Hemostasis (ISTH) criteria.
|
up to 6 weeks postpartum
|
|
Decrease in hemoglobin values
Prazo: From baseline (admission to labor and delivery unit) up to the day of postpartum discharge (typically 2 to 5 days)
|
Comparison of the decrease in hemoglobin levels between the apixaban and enoxaparin study groups.
The baseline value is defined as the hemoglobin level measured via complete blood count (CBC) upon the patient's admission to the labor and delivery unit.
The final value is the hemoglobin level measured on the day of her clinical discharge from the postpartum ward.
The decrease will be calculated for each participant by subtracting the discharge value from the baseline value.
|
From baseline (admission to labor and delivery unit) up to the day of postpartum discharge (typically 2 to 5 days)
|
|
Incidence of adverse events
Prazo: up to 6 weeks postpartum
|
Patient-reported side effects assessed via a participant questionnaire.
|
up to 6 weeks postpartum
|
|
ACTS Burden Score
Prazo: Up to 6 weeks postpartum
|
Treatment burden associated with assigned anticoagulant therapy, assessed using the ACTS Burden subscale.
The subscale contains 5 items with a total score ranging from 5 to 25. Lower scores indicate lower perceived treatment burden and greater treatment satisfaction.
|
Up to 6 weeks postpartum
|
|
ACTS Benefit Score
Prazo: Up to 6 weeks postpartum
|
Perceived benefit of assigned anticoagulant therapy, assessed using the Anti-Clot Treatment Scale (ACTS) Benefit subscale.
The ACTS Benefit subscale consists of 3 items evaluating patient perception of treatment effectiveness and reassurance.
Total scores range from 3 to 15.
Higher scores indicate greater perceived treatment benefit.
|
Up to 6 weeks postpartum
|
|
Treatment Convenience Score
Prazo: Up to 6 weeks postpartum
|
Participant-reported convenience of assigned anticoagulant therapy, assessed using a Visual Analog Scale (VAS).
Scores range from 0 to 10, where 0 represents "not convenient at all" and 10 represents "extremely convenient."
Higher scores indicate greater treatment convenience.
|
Up to 6 weeks postpartum
|
Colaboradores e Investigadores
É aqui que você encontrará pessoas e organizações envolvidas com este estudo.
Patrocinador
Datas de registro do estudo
Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.
Datas Principais do Estudo
Início do estudo (Estimado)
1 de julho de 2026
Conclusão Primária (Estimado)
1 de abril de 2027
Conclusão do estudo (Estimado)
1 de abril de 2027
Datas de inscrição no estudo
Enviado pela primeira vez
22 de março de 2026
Enviado pela primeira vez que atendeu aos critérios de CQ
20 de julho de 2026
Primeira postagem (Real)
21 de julho de 2026
Atualizações de registro de estudo
Última Atualização Postada (Real)
21 de julho de 2026
Última atualização enviada que atendeu aos critérios de controle de qualidade
20 de julho de 2026
Última verificação
1 de julho de 2026
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- 0495-24RMB
Informações sobre medicamentos e dispositivos, documentos de estudo
Estuda um medicamento regulamentado pela FDA dos EUA
Não
Estuda um produto de dispositivo regulamentado pela FDA dos EUA
Não
produto fabricado e exportado dos EUA
Não
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .