Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews · Gynaecology and Fertility

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 2 · 100%Moderate 0 · 0%High 0 · 0%

Clomiphene citrate or letrozole with or without gonadotropins (with or without midcycle antagonist) vs gonadotropins (with GnRH agonists or midcycle antagonist)

Cancellation rate per woman · for controlled ovarian stimulation

Clomiphene citrate or letrozole with or without gonadotropins (with… may leads to higher cancellation rate per woman compared with gonadotropins (with GnRH agonists or midcycle antagonist) (low certainty).

1 finding from 1 review

Oral medications including clomiphene citrate or aromatase inhibitors with gonadotropins for controlled ovarian… 2017 · Cochrane Headline outcomes only
RR 1.87 [1.43, 2.45]
9 studies · 1784 participants
Low

Clomiphene citrate or letrozole with or without gonadotropins (with or without midcycle antagonist) vs gonadotropins (with GnRH agonists or midcycle antagonist)

Cancellation rate per woman · Women undergoing controlled ovarian stimulation in IVF and ICSI cycles (poor responders)

Clomiphene citrate or letrozole with or without gonadotropins (with… may leads to higher cancellation rate per woman compared with gonadotropins (with GnRH agonist or midcycle antagonist) (low certainty).

1 finding from 1 review

Oral medications including clomiphene citrate or aromatase inhibitors with gonadotropins for controlled ovarian… 2017 · Cochrane Headline outcomes only
RR 1.46 [1.18, 1.81]
10 studies · 1601 participants
Low