Hemophilia A
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Non-severe hemophilia A patients (FVIII 0.01-0.40 IU/mL) - In need of a minor surgical intervention - Age minimally 12 and maximally 70 years at study inclusion date - Need for perioperative FVIII concentrates for a maximum of 48 hours - Having admissible results of a desmopressin test (see paragraph 3.1) - Absolute increase in FVIII 1 hour after desmopressin administration = 0.2 IU/mL after a previous (test) dose - Male gender - (Parental) informed consent
Exclusion criteria
Exclusion criteria: - Patients with other congenital or acquired hemostatic abnormalities - Clinically relevant FVIII inhibiting antibodies (>0.5 BU) preoperatively, unless successfully treated with immunotolerance therapy - Needed treatment duration with FVIII concentrates longer than 48 hours - Contraindications for desmopressin, e.g. cardiovascular disease (see appendix IV) - Use of co-medication that has an interaction with desmopressin (see appendix IV) - Intolerance to previous desmopressin administrations
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Efficacy of treatment, measured as the deviation of the measured FVIII from the predicted FVIII range preoperatively. The amount of FVIII concentrate in IU per kilogram | — |
Secondary
| Measure | Time frame |
|---|---|
| a) Number and nature of bleeding during the first 14 days after the minor intervention (appendix VI) a) Other adverse events during the first 14 days after the minor intervention b) Treatment costs in both treatment arms c) The proportion of patients with FVIII plasma levels within set target levels after the minor intervention d) Experienced quality of care in participating patients e) Discrepancies between one-stage and chromogenic FVIII-measurements before and after desmopressin administration f) Inhibitor development 4-6 weeks after the minor intervention | — |
Contacts
Erasmus MC - room Na-823