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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 3INTERVENTIONAL

Randomized Controlled Multicenter Study Comparing Steroid Therapy Plus Anticoagulants to Steroid Therapy Alone in Deep Venous Thrombosis of Behçet's Syndrome

Randomized Controlled Multicenter Study Comparing Steroid Therapy Plus Anticoagulants to Steroid Therapy Alone in Deep Venous Thrombosis of Behçet's Syndrome (NCT06780462) is a Phase 3 interventional studying Behcet Syndrome, sponsored by Assistance Publique - Hôpitaux de Paris. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

In patients with Behçet's syndrome (BS), deep venous thrombosis (DVT) is thought to result from inflammation of the vessel wall rather than hyper coagulability. Post Thrombotic Syndrome (PTS) is frequent especially with recurrent episodes of deep vein thrombosis and may result in leg ulcers that are very difficult to treat. Vascular involvement is a major cause of morbidity and mortality among BS patients. However, one of the most controversial issues regarding the management of BS is whether DVT should be treated with anticoagulants. Moreover, use of anticoagulants exposes patients to serious bleeding, especially in those who presents simultaneous arterial aneurysms. However, many physicians are still using anticoagulants. This is the first prospective, randomized study assessing benefits of corticosteroids associated with anticoagulant compared to that of corticosteroids alone in DVT in BS patients. It will validate or not the use of anticoagulants in those situations. It will allow a direct comparison of the safety profile of those two schemes of treatment.

What Stage of Research Is This?

Phase 3 trials confirm efficacy and safety in large patient groups (often 300–3,000+) and form the evidence base for an FDA approval submission. For Behcet Syndrome, Phase 3 studies typically randomize participants between the investigational treatment and either a placebo or current standard of care. A successful Phase 3 result is the threshold most treatments need to clear before regulatory approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 134 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Behcet Syndrome subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: 1. Age ≥ 18 years old 2. Diagnosis of BS according to the international criteria 3. First or recurrent deep venous thrombosis diagnosed on imaging (venous ultrasonography , and/or Angio CT scan and/or angio MRI) 4. Written inform consent 5. Women of childbearing potential (WOCBP) are required to have a negative pregnancy test before treatment and must agree to maintain during treatment highly effective contraception (ie, abstinence, combined estrogen- and progestogen- containing hormonal contraception, ovulation inhibitors (Oral, Intravaginal, Transdermal); Progestogen-only hormonal contraception associated with inhibition of ovulation (Oral, Injectable, Implantable); Intrauterine device (IUD); Intrauterine hormone-releasing system (IUS); Bilateral tubal occlusion; Vasectomised partner). 6. Affiliation to a social security system. Patients affiliated to universal medical coverage (CMU) are eligible for the study Who Should NOT Join This Trial: 1. Clinical condition, other than venous thrombosis, requiring anticoagulation (e.g. atrial fibrillation…) 2. Active bleeding or high risk for bleeding contraindicating treatment with anticoagulants 3. Isolated superficial thrombosis without concomitant deep venous thrombosis. 4. Pregnancy or lactation 5. Have been taking an oral daily dose of a glucocorticoid of more than 20 mg prednisone equivalent for more than 6 weeks continuously prior to the inclusion visit or taking more than 4000 mg methylprednisolone 4 weeks prior to the inclusion visit 6. Have been taking anti-coagulation therapy for more than 4 weeks prior to inclusion 7. Severe chronic renal (creatinine clearance \<30ml/min/1,73m2) or liver insufficiency associated with coagulopathy 8. Platelet count \< 50 x 103/mm3 9. Change in the treatment with systemic biologic therapy or immunosuppressant therapy dose 1 month prior to inclusion visit. ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: 1. Age ≥ 18 years old 2. Diagnosis of BS according to the international criteria 3. First or recurrent deep venous thrombosis diagnosed on imaging (venous ultrasonography , and/or Angio CT scan and/or angio MRI) 4. Written inform consent 5. Women of childbearing potential (WOCBP) are required to have a negative pregnancy test before treatment and must agree to maintain during treatment highly effective contraception (ie, abstinence, combined estrogen- and progestogen- containing hormonal contraception, ovulation inhibitors (Oral, Intravaginal, Transdermal); Progestogen-only hormonal contraception associated with inhibition of ovulation (Oral, Injectable, Implantable); Intrauterine device (IUD); Intrauterine hormone-releasing system (IUS); Bilateral tubal occlusion; Vasectomised partner). 6. Affiliation to a social security system. Patients affiliated to universal medical coverage (CMU) are eligible for the study Exclusion Criteria: 1. Clinical condition, other than venous thrombosis, requiring anticoagulation (e.g. atrial fibrillation…) 2. Active bleeding or high risk for bleeding contraindicating treatment with anticoagulants 3. Isolated superficial thrombosis without concomitant deep venous thrombosis. 4. Pregnancy or lactation 5. Have been taking an oral daily dose of a glucocorticoid of more than 20 mg prednisone equivalent for more than 6 weeks continuously prior to the inclusion visit or taking more than 4000 mg methylprednisolone 4 weeks prior to the inclusion visit 6. Have been taking anti-coagulation therapy for more than 4 weeks prior to inclusion 7. Severe chronic renal (creatinine clearance \<30ml/min/1,73m2) or liver insufficiency associated with coagulopathy 8. Platelet count \< 50 x 103/mm3 9. Change in the treatment with systemic biologic therapy or immunosuppressant therapy dose 1 month prior to inclusion visit. 10. Contraindication to investigational medicinal products (Corticosteroids and direct oral anticoagulant (Rivaroxaban)) 11. Participation to another interventional clinical trial or being in the exclusion period at the end of a previous study

Treatments Being Tested

DRUG

Corticosteroids + Rivaroxaban

Corticosteroids according to the schedule of reduction of prednisone (or equivalent prednisone dose only if prednisone is out of stock in the market) and Rivaroxaban

DRUG

Corticosteroids alone

Corticosteroids according to the schedule of reduction of prednisone (or equivalent prednisone dose only if prednisone is out of stock in the market)

Locations (17)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

CHU BORDEAUX Hôpital Saint-André
Bordeaux, France
Ambroise Paré hospital AP-HP
Boulogne-Billancourt, France
CHU Caen
Caen, France
Hopital Henri Mondor AP-HP
Créteil, France
Chu de Grenoble
Grenoble, France
Hôpital Bicêtre
Le Kremlin-Bicêtre, France
Hcl, Hopital de La Croix Rousse
Lyon, France
Centre Hospitalier de Melun
Melun, France
CHRU DE Nancy Hôpitaux de Brabois
Nancy, France
Hôpital Hôtel-Dieu
Nantes, France
Hopital Européen Georges Pompidou AP-HP
Paris, France
Hôpital Lariboisière AP-HP
Paris, France
Hôpital Saint Antoine AP-HP
Paris, France
Hôpital Tenon AP-HP
Paris, France
La Pitié Salpetriere hospital
Paris, France
CHU Bordeaux- GHU SUD hôpital Haut-Lévêque
Pessac, France
CHU DE ROUEN, Hôpital CHARLES NICOLLE
Rouen, France

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06780462), the sponsor (Assistance Publique - Hôpitaux de Paris), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06780462 clinical trial studying?

In patients with Behçet's syndrome (BS), deep venous thrombosis (DVT) is thought to result from inflammation of the vessel wall rather than hyper coagulability. Post Thrombotic Syndrome (PTS) is frequent especially with recurrent episodes of deep vein thrombosis and may result in leg ulcers that are very difficult to treat. Vascular involvement is a major cause of morbidity and mortality among BS patients. However, one of the most controversial issues regarding the management of BS is whether DVT should be treated with anticoagulants. Moreover, use of anticoagulants exposes patients to seriou… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06780462?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06780462?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06780462. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06780462. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.