Clinical Trial

Heparin Pregnancy Loss Evaluation

Study Description

AntiPhospholipid Syndrome Low-molecular-weight Heparin Pregnancy Loss Evaluation: The Pilot Study

The APPLE pilot trial is a feasibility study that is a multicentre, open-label, randomized controlled trial. Pregnant women with antiphospholipid syndrome (APS) and a history of late (a?Y10 weeks gestation) or recurrent early (2 <10 weeks) pregnancy loss will be recruited. Eligible and consenting subjects will be assigned to one of two study arms: open-label low-molecular-weight heparin (LMWH) prophylaxis until 37 weeks gestation AND low-dose aspirin (ASA) daily until delivery, or open-label low-dose aspirin daily from randomization until delivery.


Locations Selected Location


Pharmaceutical medication involved Pharmaceutical medication involved
Recruiting patients only Recruiting patients only

Drug - Aspirin 81 mg

Aspirin 81 mg po daily in tablet form.

Drug - Low-molecular-weight heparin

The LMWH regime will be at the discretion of the treating physician, with a suggested regime as follows: tinzaparin 4,500 IU sc daily until 20 weeks gestation, and then 4,500 IU sc twice daily until 37 weeks gestation.

Additional Information

Official Study Title

A Pilot Study Assessing the Feasibility of a Randomized Controlled Trial Evaluating Aspirin Versus Low-molecular-weight Heparin (LMWH) and Aspirin in Women With Antiphospholipid Syndrome and Pregnancy Loss

Clinical Trial ID


ParticipAid ID