The Effect of Low Dose Aspirin in Increasing the Chance of Pregnancy

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-05-31

Study Completion Date

2015-02-28

Brief Summary

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It has been reported that low-dose aspirin and Heparin would lead to an increased Pregnancy rate in patients undergoing IVF-ET. Low-dose aspirin may improve uterine and ovarian perfusion and that aspirin might enhance endometrial receptivity and ovarian responsiveness as well, which could result in better implantation and pregnancy rates after IVF or ICSI treatment. This study assesses potential effects of low-dose aspirin (100 mg daily) on pregnancy rate following frozen embryo transfer.

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Detailed Description

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In the present randomized double-blind prospective study, the patients will be randomly assigned to the study and control groups. With the onset of endometrial preparation and estrogen treatment, the study group will receive 100 mg of oral aspirin and the control group will be given placebo. When endometrial thickness will be found between 8-14 mm, therapy with progesterone (100 mg IM daily) will be started and embryo transfer will be performed 48 to 72 hours later. Doppler ultrasonography also is done to calculate Resistive Index (RI) and Pulsatility Index (PI), the day after progesterone administration.

βHCG will be assessed 14 days after ET. If a pregnancy will be achieved, the patients in study and control groups will be instructed to continue the aspirin or placebo through 5 weeks and if the pregnancy test result will be negative, the treatment with aspirin or placebo will be stopped. The patients will be followed until 20 weeks of gestation and the results of treatment cycle will be compared in two groups.

Conditions

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Infertility

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Asprin

With the onset of endometrial preparation and estrogen treatment, the study group will receive 100 mg of oral aspirin.

Group Type EXPERIMENTAL

Asprin

Intervention Type DRUG

100 mg

placebo

With the onset of endometrial preparation and estrogen treatment, the control group will receive placebo

Group Type PLACEBO_COMPARATOR

placebo

Intervention Type DRUG

100mg

Interventions

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Asprin

100 mg

Intervention Type DRUG

placebo

100mg

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Patients with "long or antagonist" protocol
* Women who did not achieve a pregnancy following a fresh embryo transfer or women whom their embryos had not been transferred due to OHSS
* The women who had frozen embryos available for another transfer no contraindications for aspirin