Azoospermia clinical trials

The registry lists 59 studies for Azoospermia across more than 10 countries. 17 are recruiting or about to start. 37 of them are mainly about Azoospermia (how this is decided). Per ClinicalTrials.gov, last updated 2026-07-01. Counting its narrower condition Azoospermia, Nonobstructive too: 74 studies, 20 open.

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Status

Completed: 24
Recruiting: 13
Status unknown: 12
Not yet recruiting: 4
Withdrawn: 3
Terminated: 3

Phase

Phase 2: 7
Phase 1: 4
Phase 3: 2
Early Phase 1: 1
Phase 4: 1

Where

Egypt: 12
United States: 8
Israel: 5
China: 5
France: 4
Spain: 3

Who runs them

Assiut University (5) · Cairo University (4) · Turku University Hospital (2) · Igenomix (2) · Sheba Medical Center (2) · Hadassah Medical Organization (2) · Man Clinic for Andrology, Male Infertility and Sexual Dysfunction (2) · Istituto Clinico Humanitas (2)

What is being tested here

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

Drug	Open	Phase 3	All
Platelet rich plasma	1	0	1
Stem Cell	0	0	2
Clomiphene	0	1	2
Isotretinoin	0	0	1
Mesenchymal Stem Cell	0	0	1

Coming up

0phase 3 studies under way

4studies finish main data collection within a year

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

All 4

Dec 2026Laterality Success Determination of Microscopic Testicular Sperm Extraction in Non Obstructive Azoopsermia Patients · Assiut University
Dec 2026Platelet Rich Plasma Testis Treatment for Infertile Men · Stanford University
Apr 2027Fertility Enhancement Through Regenerative Treatment in Ovaries and Testes · Jumeirah American Clinic
Nov 2027IntelliWell: An AI-Assisted Imaging Platform for Detection and Location of Ultra-Rare Testicular Sperm in Surgical Specimens · Brigham and Women's Hospital

Who these studies take

Of the 13 Azoospermia studies recruiting now, 4 (31%) set no upper age limit and 6 (46%) stop at 75 or younger. 1 (8%) take children under 18. 0 (0%) are for women only and 11 (85%) for men only; 2 (15%) take healthy volunteers.

Recruiting studies that take each age, of 13
Age	Women	Men
10	0 (0%)	0 (0%)
18	1 (8%)	9 (69%)
30	2 (15%)	13 (100%)
40	2 (15%)	13 (100%)
50	2 (15%)	11 (85%)
65	1 (8%)	7 (54%)
75	1 (8%)	7 (54%)
85	1 (8%)	6 (46%)

Across all 59 studies, recruiting or not: 64% stop at 75 or younger and 63% at 65; 15% take children; 0% are for women only and 86% for men only; 24% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

Studies

Recruiting first, then most recently updated. Showing 50 of 59. Browse all 59 → or search them.