Condition
Peritonsillar Abscess clinical trials and research
As of November 12, 2026, Find a Trial lists 4 Peritonsillar Abscess clinical trials that are recruiting, at sites in 3 countries (most in Denmark (2), United States (1), Slovenia (1)). 1 was first registered in the last 30 days. By phase: Phase 4 (2). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 1New in 30 days
- 3Countries
Newest Peritonsillar Abscess clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| One-time IV penicillin added to standard penicillin for adults with acute tonsillitis, tonsillitis with peritonsillar phlegmon, or peritonsillar abscess | Phase 4 | Aarhus, Central Jutland | Recruiting | Oct 26, 2026 |
| Transoral ultrasound versus standard clinical exam to diagnose peritonsillar abscess | — | Copenhagen and 2 other locations | Recruiting | May 11, 2026 |
| Trimethoprim-sulfamethoxazole versus clindamycin for children with invasive MRSA infections | Phase 4 | Indianapolis, Indiana | Recruiting | May 21, 2025 |
| Understanding complicated infections in ear, nose, and throat | — | Ljubljana, Ljubljana | Recruiting | Sep 5, 2023 |
All recruiting trials (4)
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One-time IV penicillin added to standard penicillin for adults with acute tonsillitis, tonsillitis with peritonsillar phlegmon, or peritonsillar abscess
A single dose of intravenous benzylpenicillin is given alongside standard oral penicillin to adults with acute tonsillitis, peritonsillar phlegmon, or peritonsillar abscess to see if symptoms improve.
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Transoral ultrasound versus standard clinical exam to diagnose peritonsillar abscess
This trial will test whether adding transoral ultrasound helps doctors tell which adults with suspected peritonsillar abscess need drainage.
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Trimethoprim-sulfamethoxazole versus clindamycin for children with invasive MRSA infections
This will see if trimethoprim-sulfamethoxazole works as well as clindamycin to treat invasive MRSA infections in children aged 60 days to 18 years.
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Understanding complicated infections in ear, nose, and throat
This study looks at how doctors treat complicated ear, nose, and throat infections to see if they can improve recovery times and outcomes for patients in Slovenia.
Related topics
Quick answers
How many Peritonsillar Abscess clinical trials are recruiting right now?
4, as of November 12, 2026. 1 of them was first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 3 countries. The most sites are in Denmark (2 trials), United States (1 trial), Slovenia (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 4: 2. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.