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Pharyngitis

Subtypes of Pharyngitis

Tonsillitis 2 Sore throat 1

5 published articles · Updated continuously

Clinical Trial Landscape

Clinical Trials for pharyngitis

6 trials tracked for pharyngitis: 4 in phase 3 or 4 and 2 with published results. The most-cited published study has 32 citations.

6Trials tracked
4Phase 3 & 4
0Recruiting
2With published results
Phase distribution
Phase 3 4 Other / NA 2
  1. Phase 3 A Study of Flurbiprofen 8.75 mg Lozenge in Patients With Pharyngitis Completed · 32 cited
  2. Phase 3 A Study of Flurbiprofen 8.75 mg Lozenge in Patient With Pharyngitis Completed · 27 cited
  3. Phase 3 Double-blind Trial to Investigate Efficacy and Tolerance of Ambroxol Lozenges 20 mg in Sore Throat Completed
  4. Phase 3 Testing The Effectiveness Of Celecoxib In Patients With Painful Sore Throat Completed
  5. N/A Effect of Intra-cuff Lidocaine and Tetracaine on Tracheal Tube-induced Emergence Phenomena Completed
  6. N/A Using Electronically Derived Automated Reports of Appropriate Antibiotic Use to Inform Stewardship Interventions Completed

Showing the 6 most-cited and recently-updated of 6 trials. Browse the full registry →

Trial data sourced from ClinicalTrials.gov. Counts describe the research landscape and are not a treatment recommendation. Informational only — not medical advice.

What the trials found For clinicians

Pharyngitis: what the trials found

Clinical trials have evaluated various interventions for the management of sore throat pain and difficulty swallowing in pharyngitis. Placebo groups demonstrated statistically significant improvements in both Time Weighted Sum of Pain Intensity Differences (SPID) over 24 hours [1, 2] and in Difficulty Swallowing Scale (DSS) scores during both the initial 2 hours [1, 2] and 24-hour periods 1.

Specific pharmacological interventions showed varying results. Ambroxol as a lozenge demonstrated a significant reduction in the Sum of Pain Intensity Difference (SPIDnorm) over the first 3 hours post-dose 3, though changes in absolute pain intensity scores on a 6-point scale were not statistically significant 3. Celecoxib demonstrated a significant reduction in SPID2 at 2 hours post-dose 4 and significant improvements in Pain Intensity Difference (PID) between 7 and 24 hours post-dose 4, while PID values within the first 6 hours did not reach statistical significance 4.

Recent results — preliminary, needs further review

  • A large quasi-experimental study was conducted to evaluate interventions for pharyngitis, though specific outcome data were not provided in the trial summary 5.

For the clinician treating this condition

  • Placebo administration was associated with significant reductions in both sore throat pain intensity and difficulty swallowing over 24 hours [1, 2].
  • Ambroxol lozenges significantly reduced normalized pain intensity differences within the first 3 hours of use 3.
  • Celecoxib showed significant efficacy in reducing pain intensity specifically at the 2-hour mark and during the 7-to-24-hour window post-dose 4.

AI synthesis of 4 cited trials, updated Jun 29, 2026. Informational only — not medical advice; trial data sourced from ClinicalTrials.gov. How we use AI.

HCP Mode — summaries include clinical detail, trial data, and statistical outcomes.
Patient Mode — summaries use plain language, avoiding clinical jargon.

Questions about pharyngitis

Can parechovirus A cause pharyngitis and tonsillitis in hospitalized children?

Yes, parechovirus A can cause pharyngitis and tonsillitis in hospitalized children, especially when detected alone without other viruses.

Full answer →