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Communicable Diseases clinical trials

The registry lists 626 studies for Communicable Diseases across more than 10 countries. 128 are recruiting or about to start. 299 of them are mainly about Communicable Diseases (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-09. Counting its 23 narrower conditions too, such as HIV Infections: 12,556 studies, 1,223 open.

ClinicalTrials.gov finds 29,046 studies for Communicable Diseases. How that becomes 626 here

This page counts the studies the registry files under Communicable Diseases, and those it files under no condition that list Communicable Diseasesthemselves. 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. 29,046Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −11,714Filed under a narrower condition, counted on its own pageHIV Infections 4,664 · Acquired Immunodeficiency Syndrome 1,886 · Hepatitis C 1,527 · Hepatitis B 847 · Hepatitis B, Chronic 684 · Hepatitis C, Chronic 572 · 17 more
  3. −125List Communicable Diseases as a condition, but the registry did not file them under itMost often written as “Skin Diseases, Infectious” (24), “Pneumococcal Infectious Disease” (12), and “Bone Diseases, Infectious” (8). The registry filed 33 of them under no condition at all, and the others under other conditions only, most often Skin Diseases, Infectious (27) and COVID-19 (12).
  4. −16,581Match it another way125 name it in the title, 37 in a keyword, and 16,419 by a synonym or other text the search reads.
  5. 626The count on this page

Get an email when these change. Save the Communicable Diseases studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.

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Example · made-up studies

Breast cancer · Recruiting: 2 came in, 3 changed

What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

Came in · now Recruiting

Drug B with hormone therapy in advanced breast cancer

Changed

· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

Exercise during chemotherapy

Now Active, not recruiting

One email a week for all your saved searches. Stop any time.

Status

Completed
342
Recruiting
92
Status unknown
85
Active, not recruiting
34
Not yet recruiting
28
Terminated
22

Phase

Phase 2
62
Phase 3
55
Phase 1
44
Phase 4
30
Early Phase 1
5

Where

United States
161
France
42
Canada
34
China
30
Spain
23
United Kingdom
22

Who runs them

National Center for Research Resources (NCRR) (25) · National Institute of Allergy and Infectious Diseases (NIAID) (15) · Assistance Publique - Hôpitaux de Paris (10) · BLIS Technologies Limited (7) · Emory University (7) · Johns Hopkins University (7) · University of Alabama at Birmingham (4) · Karolinska Institutet (4)

What is being tested here

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

DrugOpenPhase 3All
Hepatitis B Virus Antisense Oligonucleotide AHB-137202
Azithromycin114
BWC0977103
Tafenoquine102
Favipiravir112
Chlorhexidine112
2-Propanol112
Bepirovirsen101
Naproxen111
Dexamethasone111

Drug classes tested here Beta-lactamase inhibitors 1 open · Reverse transcriptase inhibitors 3

Coming up

8phase 3 studies under way
44studies finish main data collection within a year1 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 92 Communicable Diseases studies recruiting now, 49 (53%) set no upper age limit and 32 (35%) stop at 75 or younger. 36 (39%) take children under 18. 6 (7%) are for women only and 1 (1%) for men only; 40 (43%) take healthy volunteers.

Recruiting studies that take each age, of 92
AgeWomenMen
1028 (30%)28 (30%)
1872 (78%)67 (73%)
3074 (80%)69 (75%)
4075 (82%)71 (77%)
5071 (77%)70 (76%)
6568 (74%)67 (73%)
7561 (66%)60 (65%)
8557 (62%)56 (61%)

Across all 626 studies, recruiting or not: 41% stop at 75 or younger and 35% at 65; 37% take children; 9% are for women only and 1% for men only; 49% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Communicable Diseases studies take

Of 25 phase 1 interventional studies under Communicable Diseases, half reached primary completion within 13 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 113 mo5–18 · 25 studies——
Phase 218 mo12–38 · 22 studies——
Phase 340 mo21–54 · 16 studies——
Phase 438 mo17–65 · 13 studies——
Interventional, no phase21 mo6–36 · 144 studies—21 mo6–36 · 128 studies
Observational37 mo17–94 · 142 studies—37 mo18–77 · 128 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 13, 2026.

Newly registered1

Studies

Recruiting first, then most recently updated. Showing 50 of 626. Browse all 626 → or search them.