A Study of Direct Oral Anticoagulants in Patients with Painful Venous Malformations with Localized Intravascular Coagulation

• Status: NOT_YET_RECRUITING
• Trial end date: 2031-12-31

Summary

There are two parts of the study. In Part 1, the invesitgaotrs want to investigate whether treatment with apixaban improves pain and quality of life in patients with painful venous malformations The participants are randomized to different treatment orders of the two treatment periods with apixaban and placebo. Arm 1 starts apixaban followed by placebo and arm 2 starts with placebo followed by apixaban. Between the treatment sequences there will be a washout period of minimum one week.

The participants will register pain and use og pain medication in a diary every day for one week before start of treatment and before evaluation of effect. Also, a quality of life form will be filled out before each consultation.

In Part 2, the investigators will investigate long-term effect and safety of apixaban and reduce dose after 3 months to find the minimal effective dose.

Part 2 includes participants from Part 1 study who experienced effect of treatment or who agree to continue apixaban treatment. Study start of Part 2 is at the end of Part 1. All participants receive the same dose of apixaban as in part 1 (5 mg twice daily), and after 3 months (visit 2) the dose is reduced to 2.5 mg twice daily.

• Phase: PHASE2

Details

• Lead Sponsor: Oslo University Hospital
• Treatments: apixaban