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Infertility clinical trials

The registry lists 2,085 studies for Infertility across more than 10 countries. 357 are recruiting or about to start. 1,671 of them are mainly about Infertility (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its 6 narrower conditions too, such as Infertility, Female: 2,820 studies, 520 open.

ClinicalTrials.gov finds 3,158 studies for Infertility. How that becomes 2,084 here

This page counts the studies the registry files under Infertility, and those it files under no condition that list Infertilitythemselves. Each study its search finds is placed by how the registry filed it and by the conditions it lists. ClinicalTrials.gov counts as of Nov 8, 2026. How condition pages count

  1. 3,158Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −720Filed under a narrower condition, counted on its own pageInfertility, Female 415 · Infertility, Male 226 · Oligospermia 30 · Azoospermia 16 · Asthenozoospermia 12 · Azoospermia, Nonobstructive 2
  3. −35List Infertility as a condition, but the registry did not file them under itMost often written as “Unexplained Infertility” (6), “Infertility Unexplained” (6), and “Female Infertility Due to Diminished Ovarian Reserve” (4). The registry filed them under other conditions only, most often Endometriosis (7) and Polycystic Ovary Syndrome (5).
  4. −319Match it another way72 name it in the title, 13 in a keyword, and 234 by a synonym or other text the search reads.
  5. 2,084The count on this page94 of them list Infertility in their own words; the registry filed them under no condition.

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Status

Completed
1,063
Status unknown
384
Recruiting
235
Terminated
137
Not yet recruiting
103
Withdrawn
71

Phase

Phase 4
263
Phase 3
204
Phase 2
162
Phase 1
66
Early Phase 1
17

Where

United States
395
Egypt
218
Spain
139
China
139
France
111
Turkey
89

Who runs them

Cairo University (52) · Ferring Pharmaceuticals (39) · Merck KGaA, Darmstadt, Germany (37) · Universitair Ziekenhuis Brussel (32) · Reproductive Medicine Associates of New Jersey (28) · Assiut University (24) · Assistance Publique - Hôpitaux de Paris (22) · The University of Hong Kong (21)

What is being tested here

Drugs under test in Infertility studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Progesterone5438
Chorionic Gonadotropin4740
Triptorelin4625
Follitropin alfa3930
Estradiol2222
Dehydroepiandrosterone2713
Carnitine203
Utrogestan212
Semaglutide212
Ketorolac202

Drug classes tested here Progestins 7 open · NSAIDs 4 open · GLP-1 receptor agonists 3 open · Aromatase inhibitors 2 open · Estrogens 2 open

Coming up

21phase 3 studies under way
105studies finish main data collection within a year5 of them phase 3

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest, phase 3 first

Who these studies take

Of the 235 Infertility studies recruiting now, 43 (18%) set no upper age limit and 186 (79%) stop at 75 or younger. 27 (11%) take children under 18. 162 (69%) are for women only and 24 (10%) for men only; 78 (33%) take healthy volunteers.

Recruiting studies that take each age, of 235
AgeWomenMen
1019 (8%)18 (8%)
18160 (68%)63 (27%)
30203 (86%)70 (30%)
40172 (73%)69 (29%)
5059 (25%)49 (21%)
6540 (17%)36 (15%)
7538 (16%)33 (14%)
8537 (16%)33 (14%)

Across all 2,085 studies, recruiting or not: 86% stop at 75 or younger and 85% at 65; 10% take children; 82% are for women only and 5% for men only; 33% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Infertility studies take

Of 80 phase 4 interventional studies under Infertility, half reached primary completion within 33 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 113 mo11–38 · 27 studies——
Phase 223 mo14–42 · 30 studies——
Phase 324 mo16–47 · 59 studies19 mo13–24 · 25 studies—
Phase 433 mo19–82 · 80 studies—34 mo19–82 · 73 studies
Interventional, no phase24 mo10–43 · 416 studies27 mo14–34 · 31 studies24 mo10–46 · 385 studies
Observational39 mo16–100 · 242 studies—39 mo15–100 · 209 studies

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 11, 2026.

Started recruiting4

Results posted1

Stopped2

Newly registered6

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Studies

Recruiting first, then most recently updated. Showing 50 of 2,085. Browse all 2,085 → or search them.