Fertility after ectopic pregnancy: the DEMETER randomized trial

Area of Science:

• Reproductive Medicine
• Gynecologic Surgery
• Clinical Trials

Background:

• Limited randomized trials compare treatments for ectopic pregnancy (EP).
• Previous reviews found insufficient data on fertility outcomes.
• Existing studies suggest varied fertility based on EP treatment modality.

Purpose of the Study:

• To compare the impact of different ectopic pregnancy treatments on subsequent spontaneous fertility.
• To evaluate if methotrexate, conservative surgery, or radical surgery affects the rate of intrauterine pregnancy (IUP).

Main Methods:

• A multicenter randomized controlled trial involving women with ultrasound-confirmed EP.
• Two arms: Arm 1 (less active EP) compared methotrexate vs. conservative surgery with methotrexate.
• Arm 2 (active EP) compared conservative vs. radical surgery.

Main Results:

• In Arm 1, no significant difference in 2-year IUP rates between methotrexate and conservative surgery (67% vs. 71%).
• In Arm 2, no significant difference in 2-year IUP rates between conservative and radical surgery (70% vs. 64%).
• Hazard ratios indicated no significant fertility difference in either arm.

Conclusions:

• Ectopic pregnancy treatment strategies do not significantly affect subsequent fertility.
• Results support reconsidering EP management to balance initial recovery with fertility preservation.
• Findings are generalizable due to the multicenter randomized trial design.