Cochrane · systematic review · CD012396

Luteal phase support for women trying to conceive by intrauterine insemination or sexual intercourse

Salang, L, Teixeira, DM, Solà, I, et al. · Cochrane Database of Systematic Reviews · 2022 · Cochrane Library

Gynaecology and FertilityAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
49
current version
GRADE rated
35
No studies
14
Included studies
NR
No studies 14 · 28.6%Ungraded 0 · 0%Very low 19 · 38.8%Low 16 · 32.7%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Progesterone compared to no treatment or placebo (route of progesterone administration) for women trying to conceive by intrauterine insemination

Population: women trying to conceive by intrauterine insemination
7 questions
OutcomeEffectEvidenceStatus / GRADE
Outcomes*
Progesterone vs no treatment or placebo (route of progesterone administration)
no estimate extractedNRNo studies
Live birth/ongoing pregnancy rate
Progesterone vs no treatment or placebo (route of progesterone administration)
RR 1.1 [0.81, 1.48]7 studies · 1792 participantsLow
Downgraded: risk of bias, imprecision
Miscarriage per clinical pregnancy
Progesterone vs no treatment or placebo (route of progesterone administration)
RR 0.7 [0.4, 1.25]5 studies · 261 participantsLow
Downgraded: risk of bias, imprecision
Clinical pregnancy per woman
Progesterone vs no treatment or placebo (route of progesterone administration)
RR 1.35 [1.14, 1.61]13 studies · 2794 participantsLow
Downgraded: risk of bias, imprecision
Clinical pregnancy per woman ‐ oral route
Progesterone vs no treatment or placebo (route of progesterone administration)
RR 0.67 [0.4, 1.13]1 study · 99 participantsVery low
Downgraded: risk of bias, imprecision
Multiple pregnancy per woman
Progesterone vs no treatment or placebo (route of progesterone administration)
RR 0.84 [0.3, 2.34]3 studies · 956 participantsLow
Downgraded: risk of bias, imprecision
Adverse events, OHSS, preterm delivery, congenital anomaly
Progesterone vs no treatment or placebo (route of progesterone administration)
no estimate extractedNRNo studies

Progesterone compared to placebo/no treatment for gonadotropin stimulation for women trying to conceive by intrauterine insemination

Population: women with gonadotropin stimulation
5 questions
OutcomeEffectEvidenceStatus / GRADE
Live birth rate/ongoing pregnancy rate
Progesterone vs placebo/no treatment
RR 1.24 [0.8, 1.92]4 studies · 1054 participantsLow
Downgraded: risk of bias, imprecision
Miscarriage rate per clinical pregnancy
Progesterone vs placebo/no treatment
RR 0.68 [0.24, 1.91]2 studies · 102 participantsLow
Downgraded: risk of bias, imprecision
Clinical pregnancy rate
Progesterone vs placebo/no treatment
RR 1.38 [1.1, 1.74]7 studies · 1437 participantsLow
Downgraded: risk of bias, imprecision
Multiple pregnancy rate
Progesterone vs placebo/no treatment
RR 0.72 [0.17, 3.15]1 study · 214 participantsLow
Downgraded: risk of bias, imprecision
Adverse events, OHSS, preterm delivery, congenital anomaly
Progesterone vs placebo/no treatment
no estimate extractedNRNo studies

Progesterone compared to placebo/no treatment for gonadotropin plus oral (clomiphene citrate/letrozole) stimulation for women trying to conceive by intrauterine insemination

Population: women with gonadotropin plus oral (clomiphene citrate or letrozole) stimulation
6 questions
OutcomeEffectEvidenceStatus / GRADE
Live birth rate
Progesterone vs placebo/no treatment
no estimate extractedNRNo studies
Ongoing pregnancy rate
Progesterone vs placebo/no treatment
RR 0.73 [0.37, 1.42]1 study · 253 participantsLow
Downgraded: risk of bias, imprecision
Miscarriage rate per clinical pregnancy
Progesterone vs placebo/no treatment
RR 0.67 [0.3, 1.5]2 studies · 123 participantsLow
Downgraded: risk of bias, imprecision
Clinical pregnancy rate
Progesterone vs placebo/no treatment
RR 1.4 [1.03, 1.9]4 studies · 733 participantsLow
Downgraded: risk of bias, imprecision
Multiple pregnancy rate
Progesterone vs placebo/no treatment
RR 1.44 [0.24, 8.49]1 study · 290 participantsLow
Downgraded: risk of bias, imprecision
Adverse events, OHSS, preterm delivery, congenital anomaly
Progesterone vs placebo/no treatment
no estimate extractedNRNo studies

Progesterone compared to placebo/no treatment for oral (clomiphene citrate or letrozole) stimulation for women trying to conceive by intrauterine insemination

Population: women with oral (clomiphene citrate or letrozole) stimulation
5 questions
OutcomeEffectEvidenceStatus / GRADE
Live birth rate/ongoing pregnancy
Progesterone vs placebo/no treatment
RR 0.97 [0.58, 1.64]2 studies · 485 participantsLow
Downgraded: risk of bias, imprecision
Miscarriage rate per clinical pregnancy
Progesterone vs placebo/no treatment
RR 0.53 [0.25, 1.14]2 studies · 119 participantsLow
Downgraded: risk of bias, imprecision
Clinical pregnancy
Progesterone vs placebo/no treatment
RR 1.44 [1.04, 1.98]6 studies · 1073 participantsLow
Downgraded: risk of bias, imprecision
Multiple pregnancy
Progesterone vs placebo/no treatment
RR 0.58 [0.1, 3.55]2 studies · 586 participantsLow
Downgraded: risk of bias, imprecision
Adverse events, OHSS, preterm delivery, congenital anomaly
Progesterone vs placebo/no treatment
no estimate extractedNRNo studies

300 mg vaginal progesterone compared to 600 mg vaginal progesterone for women trying to conceive by intrauterine insemination

Population: women trying to conceive by intrauterine insemination
2 questions
OutcomeEffectEvidenceStatus / GRADE
Ongoing pregnancy rate
300 mg vaginal progesterone vs 600 mg vaginal progesterone
RR 1.58 [0.81, 3.09]1 study · 200 participantsVery low
Downgraded: risk of bias, imprecision
Multiple pregnancy rate
300 mg vaginal progesterone vs 600 mg vaginal progesterone
RR 0.5 [0.05, 5.43]1 study · 200 participantsVery low
Downgraded: risk of bias, imprecision

Intramuscular (IM) progesterone compared to vaginal progesterone for women trying to conceive by intrauterine insemination

Population: women trying to conceive by intrauterine insemination
7 questions
OutcomeEffectEvidenceStatus / GRADE
Live birth rate
Intramuscular (IM) progesterone vs vaginal progesterone
no estimate extractedNRNo studies
Ongoing pregnancy rate
Intramuscular (IM) progesterone vs vaginal progesterone
RR 0.59 [0.34, 1.02]1 study · 225 participantsVery low
Downgraded: risk of bias, imprecision
Miscarriage rate
Intramuscular (IM) progesterone vs vaginal progesterone
RR 0.75 [0.43, 1.32]1 study · 81 participantsVery low
Downgraded: risk of bias, imprecision
Clinical pregnancy rate
Intramuscular (IM) progesterone vs vaginal progesterone
RR 0.78 [0.55, 1.11]1 study · 225 participantsVery low
Downgraded: risk of bias, imprecision
Multiple pregnancy rate
Intramuscular (IM) progesterone vs vaginal progesterone
no estimate extractedNRNo studies
Adverse events Â
Intramuscular (IM) progesterone vs vaginal progesterone
RR 9.25 [2.21, 38.78]1 study · 225 participantsVery low
Downgraded: risk of bias, imprecision
OHSS, preterm delivery, congenital anomaly
Intramuscular (IM) progesterone vs vaginal progesterone
no estimate extractedNRNo studies

Oral progesterone compared to vaginal progesterone for women trying to conceive by intrauterine insemination

Population: women trying to conceive by intrauterine insemination
6 questions
OutcomeEffectEvidenceStatus / GRADE
Live birth rate
Oral progesterone vs vaginal progesterone
no estimate extractedNRNo studies
Ongoing pregnancy rate
Oral progesterone vs vaginal progesterone
RR 1.25 [0.7, 2.22]1 study · 150 participantsVery low
Downgraded: risk of bias, imprecision
Miscarriage rate per clinical pregnancy
Oral progesterone vs vaginal progesterone
RR 0.58 [0.11, 3.09]1 study · 41 participantsVery low
Downgraded: risk of bias, imprecision
Clinical pregnancy rate
Oral progesterone vs vaginal progesterone
RR 1.16 [0.69, 1.96]1 study · 150 participantsVery low
Downgraded: risk of bias, imprecision
Multiple pregnancy rate
Oral progesterone vs vaginal progesterone
no estimate extractedNRNo studies
Adverse events, OHSS, preterm delivery, congenital anomaly
Oral progesterone vs vaginal progesterone
no estimate extractedNRNo studies

Aqueous subcutaneous (Sc) progesterone compared to vaginal progesterone gel for women trying to conceive by intrauterine insemination

Population: women trying to conceive by intrauterine insemination
2 questions
OutcomeEffectEvidenceStatus / GRADE
Ongoing pregnancy rate
Aqueous subcutaneous (Sc) progesterone vs vaginal progesterone gel
RR 1.05 [0.54, 2.05]1 study · 246 participantsVery low
Downgraded: risk of bias
Clinical pregnancy rate
Aqueous subcutaneous (Sc) progesterone vs vaginal progesterone gel
RR 1.12 [0.59, 2.11]1 study · 246 participantsVery low
Downgraded: risk of bias

Subcutaneous (Sc) gonadotropin‐releasing hormone (GnRH) agonist compared to placebo/no treatment for women trying to conceive by intrauterine insemination

Population: women trying to conceive by intrauterine insemination
6 questions
OutcomeEffectEvidenceStatus / GRADE
Live birth
Subcutaneous (Sc) gonadotropin‐releasing hormone (GnRH) agonist vs placebo/no treatment
no estimate extractedNRNo studies
Ongoing pregnancy rate
Subcutaneous (Sc) gonadotropin‐releasing hormone (GnRH) agonist vs placebo/no treatment
RR 1.1 [0.7, 1.74]1 study · 291 participantsVery low
Downgraded: risk of bias, imprecision
Miscarriage rate
Subcutaneous (Sc) gonadotropin‐releasing hormone (GnRH) agonist vs placebo/no treatment
RR 0.73 [0.26, 2.1]2 studies · 79 participantsVery low
Downgraded: risk of bias, imprecision
Clinical pregnancy rate
Subcutaneous (Sc) gonadotropin‐releasing hormone (GnRH) agonist vs placebo/no treatment
RR 1 [0.68, 1.47]2 studies · 340 participantsVery low
Downgraded: risk of bias, imprecision
Multiple pregnancy rate
Subcutaneous (Sc) gonadotropin‐releasing hormone (GnRH) agonist vs placebo/no treatment
RR 0.28 [0.11, 0.7]2 studies · 126 participantsVery low
Downgraded: risk of bias, imprecision
Adverse events, OHSS, preterm delivery, congenital anomaly
Subcutaneous (Sc) gonadotropin‐releasing hormone (GnRH) agonist vs placebo/no treatment
no estimate extractedNRNo studies

Vaginal progesterone compared to gonadotropin‐releasing hormone (GnRH) agonist for women trying to conceive by intrauterine insemination

Population: women trying to conceive by intrauterine insemination
1 question
OutcomeEffectEvidenceStatus / GRADE
Clinical pregnancy rate
Vaginal progesterone vs gonadotropin‐releasing hormone (GnRH) agonist
RR 1 [0.51, 1.95]1 study · 242 participantsVery low
Downgraded: risk of bias, imprecision

Human chorionic gonadotropin (hCG) injection compared to no treatment for women trying to conceive by intrauterine insemination

Population: women trying to conceive by intrauterine insemination
2 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical pregnancy rate
Human chorionic gonadotropin (hCG) injection vs no treatment
RR 0.93 [0.4, 2.13]1 study · 130 participantsVery low
Downgraded: risk of bias, imprecision
Multiple pregnancy rate
Human chorionic gonadotropin (hCG) injection vs no treatment
RR 1.03 [0.22, 4.92]1 study · 130 participantsVery low
Downgraded: risk of bias, imprecision