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Status unknownNCT04999176VALERIAUpdated Aug 10, 2021

Venous Thromboembolism Prophylaxis After Gynecological Pelvic Cancer Surgery With Rivaroxaban vs Enoxaparin

A Phase 3 interventional study of Rivaroxaban and Enoxaparin in Cancer, Rivaroxaban and Venous Thromboembolism, sponsored by André Luiz Malavasi Longo de Oliveira. Status unknown at 1 site in Brazil. Open to female participants aged 18 Years to 89 Years. Per ClinicalTrials.gov, last updated 2021-08-10.

Sponsored by André Luiz Malavasi Longo de Oliveira · Phase 3, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Aug 2021), so the status shown — last known as Recruiting — may be out of date.

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled Oct 2020, registered Aug 2021).
Phase
Phase 3
Study type
Interventional
Enrollment
440
Allocation
Randomized
Ages
18 Years to 89 Years
Sex
Female
01

Study summary

The Valeria trial will provide high-quality evidence regarding the efficacy and safety of oral rivaroxaban in thromboprophylaxis after gynecological pelvic cancer surgery in comparison with standard parenteral enoxaparin.

Read the detailed description

Cancer-associated thrombosis is the second leading cause of mortality in cancer patients, mainly due to the most common complication, venous thromboembolism (VTE). New oral antithrombotic strategies for VTE prevention after gynecological cancer surgery might be non-inferior to parenteral low-molecular-weight heparin (LMWH) in efficacy and safety with increased adherence, comfort, and reduced costs.

This is a multicenter, open-label, prospective, randomized, active-controlled study, and non-inferiority trial. Four hundred and forty patients submitted to major gynecological cancer surgery will be randomized in a 1:1 ratio to receive either oral rivaroxaban 10 mg once daily or subcutaneous enoxaparin 40mg once daily for 30 days post-operative. The primary efficacy outcome is a combination of symptomatic VTE and VTE-related death or VTE detected by mandatory Doppler ultrasound on day 30±4 post-operative. The primary safety outcome is the incidence of major and clinically relevant non-major bleeding according to the International Society on Thrombosis and Hemostasis criteria.

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Conditions studied

  • Cancer
  • Rivaroxaban
  • Venous Thromboembolism
  • Thromboprophylaxis

Keywords

  • Direct oral anticoagulants
  • Gynecologic cancer
  • Low-molecular weight heparin
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In context

Thromboembolism

818 studies on the registry are indexed under Thromboembolism; 98 are open to participants now.

This study's planned enrollment of 440 is above the median of 196 across 436 interventional studies indexed under Thromboembolism.

Browse Thromboembolism studies →

Lead sponsor

This is the only study on the registry with André Luiz Malavasi Longo de Oliveira as lead sponsor.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 89 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Female patients 18 years of age or older
  • Have undergone major gynecological cancer surgery (staging surgery, debulking surgery, -
  • Total or radical hysterectomy, unilateral or bilateral salpingo-oophorectomy, omentectomy, lymph node removal, open or laparoscopic access)
  • Have signed informed consent
  • Have received thromboprophylaxis with low-molecular-weight heparin, fondaparinux, or unfractionated heparin during the index hospitalization

Exclusion criteria

Exclusion Criteria:

  • Age \< 18 years
  • Refusal of informed consent
  • Physician decision that involvement in the trial was not in the patient's best interest
  • Patients with a medical indication for anticoagulation therapy at the time of inclusion (for example, diagnosis of venous thromboembolism, atrial fibrillation, mechanical valve prosthesis)
  • Patients with contraindications to anticoagulation (active bleeding, liver failure, blood dyscrasia, or prohibitive hemorrhagic risk in the investigator's assessment)
  • Active cancer (excluding non-melanoma skin cancer) defined as cancer not in remission or radiotherapy requiring active chemotherapy or adjunctive therapies such as immunotherapy
  • Use of strong inhibitors of cytochrome P450 (CYP) 3A4 and/or glycoprotein P (P-gp) (eg, protease inhibitors, ketoconazole, Itraconazole) and/or use of P-gp and strong inducers of CYP3A4 (how but not limiting rifampicin/rifampicin, rifabutin, rifapentine, phenytoin, phenobarbital, carbamazepine or St. John's wort)
  • Creatinine clearance \<30 ml / min
  • Pregnancy or breastfeeding
  • Known HIV infection
  • Presence of one of the following uncontrolled or unstable cardiovascular diseases: stroke, ECG confirmed acute ischemia or myocardial infarction, and/or clinically significant dysrhythmia
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Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
440 participants (estimated)

Study arms

  • Experimental
    Rivaroxaban

    Oral Rivaroxaban (10 mg once daily) for 30 days post-operative

    Drug: Rivaroxaban

  • Active comparator
    Enoxaparin

    Subcutaneous Enoxaparin (40 mg once daily) for 30 days post-operative

    Drug: Enoxaparin

Interventions

  • DrugRivaroxaban

    Patients will be submitted to an initial screening evaluation during hospitalization. At discharge, they will be randomized and enrolled to be treated with oral rivaroxaban (10 mg once daily, for 30 days), once randomized to this group. A mandatory lower limb Doppler ultrasound will be carried out on day 30±4 as part of the primary efficacy endpoint. A final follow-up phone call visit will be performed on day 60 postoperative.

    Also known as: Xarelto

  • DrugEnoxaparin

    Patients will be submitted to an initial screening evaluation during hospitalization. At discharge, they will be randomized and enrolled to be treated with subcutaneous enoxaparin (40 mg once daily, for 30 days), once randomized to this group. A mandatory lower limb Doppler ultrasound will be carried out on day 30±4 as part of the primary efficacy endpoint. A final follow-up phone call visit will be performed on day 60 postoperative.

    Also known as: Clexane

06

What researchers measure

Primary outcomes

  1. Venous thromboembolism and VTE related-death

    A composite of symptomatic objectively confirmed VTE (deep venous thrombosis, pulmonary embolism, and asymptomatic ultrasonography-confirmed, deep venous thrombosis or venous thromboembolism-related death at 30 days post-operative.

    Time frame: At day 30 +/- post hospital discharge

Secondary outcomes

  1. Clinically relevant bleeding

    A combination of major bleeding plus clinically relevant non-major bleeding at 30 days post-operative.

    Time frame: At day 30 +/- post hospital discharge

Other outcomes

  1. A composite of myocardial infarction, stroke, arrhythmias, heart failure, venous thromboembolism (VTE), and all-cause death

    A composite of myocardial infarction, stroke, arrhythmias, heart failure, venous thromboembolism (VTE), and all-cause death.

    Time frame: At day 30 +/- post hospital discharge

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Study locations

1 of 1 sites recruiting
  • Science Valley Research Institute
    Santo André, São Paulo 09030370, Brazil
    Recruiting
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References and documents

Publications

  • Ohashi Y, Ikeda M, Kunitoh H, Sasako M, Okusaka T, Mukai H, Fujiwara K, Nakamura M, Kimura T, Ibusuki K, Sakon M. Venous thromboembolism in patients with cancer: design and rationale of a multicentre, prospective registry (Cancer-VTE Registry). BMJ Open. 2018 May 30;8(5):e018910. doi: 10.1136/bmjopen-2017-018910. PubMed 29848769 ↗
  • Comerota AJ, Ramacciotti E. A Comprehensive Overview of Direct Oral Anticoagulants for the Management of Venous Thromboembolism. Am J Med Sci. 2016 Jul;352(1):92-106. doi: 10.1016/j.amjms.2016.03.018. Epub 2016 Apr 6. PubMed 27432042 ↗
  • Guntupalli SR, Brennecke A, Behbakht K, Tayebnejad A, Breed CA, Babayan LM, Cheng G, Ramzan AA, Wheeler LJ, Corr BR, Lefkowits C, Sheeder J, Matsuo K, Flink D. Safety and Efficacy of Apixaban vs Enoxaparin for Preventing Postoperative Venous Thromboembolism in Women Undergoing Surgery for Gynecologic Malignant Neoplasm: A Randomized Clinical Trial. JAMA Netw Open. 2020 Jun 1;3(6):e207410. doi: 10.1001/jamanetworkopen.2020.7410. PubMed 32589230 ↗
  • Key NS, Khorana AA, Kuderer NM, Bohlke K, Lee AYY, Arcelus JI, Wong SL, Balaban EP, Flowers CR, Francis CW, Gates LE, Kakkar AK, Levine MN, Liebman HA, Tempero MA, Lyman GH, Falanga A. Venous Thromboembolism Prophylaxis and Treatment in Patients With Cancer: ASCO Clinical Practice Guideline Update. J Clin Oncol. 2020 Feb 10;38(5):496-520. doi: 10.1200/JCO.19.01461. Epub 2019 Aug 5. PubMed 31381464 ↗
  • Chan NC, Weitz JI. Rivaroxaban for prevention and treatment of venous thromboembolism. Future Cardiol. 2019 Mar;15(2):63-77. doi: 10.2217/fca-2018-0076. Epub 2019 Feb 19. PubMed 30779598 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 10, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04999176
Lead sponsor
André Luiz Malavasi Longo de Oliveira
Collaborators
Science Valley Research Institute
Responsible party
André Luiz Malavasi Longo de Oliveira (Clinical Director - São Paulo State Public Women's Health Reference Center, Science Valley Research Institute) — Sponsor-investigator
First posted
Aug 10, 2021
Start date
Oct 22, 2020
Primary completion
Jul 15, 2024 (estimated)
Completion
Jul 15, 2024 (estimated)
Last update
Aug 10, 2021

Study contacts

André Luiz Oliveira, MD
Contact
drandreluiz@yahoo.com.br
+5508005917817
Leandro Agati, PhD
Contact
agati@svriglobal.com
+551144688183
Eduardo Ramacciotti, MD, PhD
study chair · Science Valley Research Institute

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Aug 2021. You cannot join it, but the record below documents what was studied.

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