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Tonsillitis clinical trials

The registry lists 103 studies for Tonsillitis across more than 10 countries. 12 are recruiting or about to start. 83 of them are mainly about Tonsillitis (how this is decided). Per ClinicalTrials.gov, last updated 2026-10-29.

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Status

Completed
54
Status unknown
20
Recruiting
10
Terminated
9
Active, not recruiting
6
Not yet recruiting
2

Phase

Phase 4
21
Phase 3
13
Phase 2
10
Phase 1
2
Early Phase 1
1

Where

United States
32
Pakistan
6
Finland
6
Canada
5
Sweden
4
Israel
4

Who runs them

Pfizer (4) · Sanofi (3) · Bayer (3) · Oulu University Hospital (3) · Nationwide Children's Hospital (2) · Advancis Pharmaceutical Corporation (2) · Turku University Hospital (2) · Selcuk University (2)

What is being tested here

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

DrugOpenPhase 3All
Hydromorphone103
Fentanyl103
Methadone102
Gabapentin101
Dexmedetomidine005
Acetaminophen004
Azithromycin024
Dexamethasone002
Aspirin012
Probiotic002

Drug classes tested here Opioids 1 open · NSAIDs 5

Coming up

1phase 3 study under way
6studies 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 6

Who these studies take

Of the 10 Tonsillitis studies recruiting now, 3 (30%) set no upper age limit and 6 (60%) stop at 75 or younger. 8 (80%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 3 (30%) take healthy volunteers.

Recruiting studies that take each age, of 10
AgeWomenMen
106 (60%)6 (60%)
185 (50%)5 (50%)
304 (40%)4 (40%)
404 (40%)4 (40%)
504 (40%)4 (40%)
654 (40%)4 (40%)
754 (40%)4 (40%)
854 (40%)4 (40%)

Across all 103 studies, recruiting or not: 72% stop at 75 or younger and 70% at 65; 80% take children; 0% are for women only and 0% for men only; 17% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Tonsillitis studies take

Of 29 interventional studies with no phase under Tonsillitis, half reached primary completion within 20 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase20 mo10–49 · 29 studies—20 mo10–49 · 29 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

Studies

Recruiting first, then most recently updated. Showing 50 of 103. Browse all 103 → or search them.