Study Protocol: Impact of Metamizole (Optalgin®) on Anti-Xa Concentrations in Oncology Patients Receiving DOACs

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorRambam Health Care Campus

About this trial

Evaluation of the Effect of metamizole (Optalgin®) on Anti-Xa Levels in Oncology Patients Receiving Direct Oral Anticoagulants (DOACs)

Eligibility criteria

Qualifiers

Adult oncology patients (≥18 years old).

Receiving apixaban or rivaroxaban for anticoagulation.

New/current metamizole users taking at least 1g TID for pain management.

Platelets ≥100×10⁹/L

Disqualifiers

History of allergic reaction to metamizole or DOACs.

Individuals with significant gastrointestinal disorders that may affect absorption, including (but not limited to) diagnosed bowel obstruction, persistent diarrhea, or the presence of a nasogastric tube (NGT/zonda)

Trial design

Treatments tested in this trial

  • metamizole
  • metamizole

Treatment groups

30 Participants
are divided into 2 treatment groups

Sponsors and collaborators