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Acquired Immunodeficiency Syndrome clinical trials

The registry lists 3,035 studies for Acquired Immunodeficiency Syndrome across more than 10 countries. 306 are recruiting or about to start. 1,528 of them are mainly about Acquired Immunodeficiency Syndrome (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-12.

ClinicalTrials.gov finds 10,212 studies for Acquired Immunodeficiency Syndrome. How that becomes 3,033 here

This page counts the studies the registry files under Acquired Immunodeficiency Syndrome, and those it files under no condition that list Acquired Immunodeficiency Syndromethemselves. 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. 10,212Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −73List Acquired Immunodeficiency Syndrome as a condition, but the registry did not file them under itMost often written as “AIDS Dementia Complex” (8), “AIDS-related Diffuse Large Cell Lymphoma” (8), and “AIDS-related Small Noncleaved Cell Lymphoma” (8). The registry filed 16 of them under no condition at all, and the others under other conditions only, most often HIV Infections (33) and AIDS Dementia Complex (10).
  3. −7,106Match it another way186 name it in the title, 202 in a keyword, and 6,718 by a synonym or other text the search reads.
  4. 3,033The count on this page

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Status

Completed
2,240
Status unknown
205
Recruiting
198
Terminated
132
Not yet recruiting
86
Active, not recruiting
82

Phase

Phase 1
507
Phase 2
418
Phase 3
269
Phase 4
211
Early Phase 1
18

Where

United States
1,670
South Africa
166
Canada
123
Puerto Rico
121
Uganda
120
France
109

Who runs them

National Institute of Allergy and Infectious Diseases (NIAID) (311) · ViiV Healthcare (150) · University of California, San Francisco (77) · Columbia University (49) · Johns Hopkins University (41) · University of North Carolina, Chapel Hill (39) · Massachusetts General Hospital (38) · Emory University (38)

Coming up

19phase 3 studies under way
108studies finish main data collection within a year4 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 198 Acquired Immunodeficiency Syndrome studies recruiting now, 118 (60%) set no upper age limit and 67 (34%) stop at 75 or younger. 43 (22%) take children under 18. 23 (12%) are for women only and 12 (6%) for men only; 68 (34%) take healthy volunteers.

Recruiting studies that take each age, of 198
AgeWomenMen
1018 (9%)15 (8%)
18159 (80%)156 (79%)
30164 (83%)150 (76%)
40164 (83%)152 (77%)
50165 (83%)159 (80%)
65146 (74%)141 (71%)
75128 (65%)123 (62%)
85122 (62%)117 (59%)

Across all 3,035 studies, recruiting or not: 36% stop at 75 or younger and 32% at 65; 26% take children; 8% are for women only and 7% for men only; 28% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Acquired Immunodeficiency Syndrome studies take

Of 139 phase 1 interventional studies under Acquired Immunodeficiency Syndrome, half reached primary completion within 14 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 114 mo4–28 · 139 studies5 mo2–18 · 76 studies23 mo15–39 · 63 studies
Phase 1/242 mo24–… · 29 studies——
Phase 236 mo18–71 · 86 studies23 mo14–71 · 29 studies47 mo22–65 · 57 studies
Phase 326 mo19–34 · 65 studies22 mo17–27 · 34 studies34 mo20–51 · 31 studies
Phase 431 mo22–47 · 70 studies—32 mo23–49 · 64 studies
Interventional, no phase29 mo17–45 · 648 studies—30 mo17–45 · 642 studies
Observational44 mo19–79 · 177 studies—46 mo22–83 · 165 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 14, 2026.

Started recruiting7

Show 2 more

Results posted7

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Stopped4

Newly registered8

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Studies

Recruiting first, then most recently updated. Showing 50 of 3,035. Browse all 3,035 → or search them.