Amoxicillin-clavulanate,
does it really help with Reduced short-term treatment failure in rigorously diagnosed acute otitis media among infants and toddlers?
research showsThe grade is B. The Finnish trial analyzed all 319 randomized children and found treatment failure in 18.6% versus 44.9%, HR 0.38 (95% CI 0.25 to 0.59), P<0.001. An independent U.S. trial of 291 children reproduced lower clinical failure at days 10 to 12, 16% versus 51%, giving B with 73 points.
ads claimThe effect size comes from children meeting stringent acute symptoms and tympanic-membrane criteria. It should not be transferred to uncertain diagnoses, other ages, or nonspecific ear pain.
Useful facts when choosing a product
- Tähtinen used amoxicillin 40 mg/kg/day plus clavulanate 5.7 mg/kg/day for seven days.
- Hoberman used amoxicillin 90 mg/kg/day plus clavulanate 6.4 mg/kg/day for ten days.
- Both trials required middle-ear effusion and tympanic-membrane bulging under stringent diagnostic criteria.
What the research actually shows
Tähtinen randomized 319 children aged 6 to 35 months, 161 versus 158, and analyzed all as assigned; failure was 18.6% versus 44.9%, difference -26.3 percentage points (95% CI -36.5 to -16.1), HR 0.38 (0.25 to 0.59). Hoberman randomized and analyzed 291 children aged 6 to 23 months; failure at days 10 to 12 was 16% versus 51%, difference -35 percentage points (95% CI -45 to -25). The first used European pediatric infectious-disease and Finnish nonprofit foundation and hospital support, the second NIAID funding, and author lists did not overlap. Adverse-event rates were diarrhea 47.8% versus 26.6% and eczema 8.7% versus 3.2% in Tähtinen, and diarrhea 25% versus 15% and diaper-area dermatitis 51% versus 35% in Hoberman.
Why this is classified as B (73)
Two independent publicly funded blinded trials substantially reduced clinical treatment failure, but the evidence is confined to short acute treatment, giving B with 73 points.
Counterpoint. Diarrhea was common and antibiotic resistance makes diagnostic certainty important.
Rejudgment record. Cross-check applied — Two independent publicly funded blinded trials substantially reduced short-term clinical failure in rigorously diagnosed young children
| Endpoint | P | Patient-reported treatment goal - the symptom is the goal |
| Replication | R2 | Independently replicated across trials |
| Independence | I2 | Decisive evidence is publicly or non-profit funded |
| Effect size | E+ | Meets the clinically important threshold |
The scoring table and the verdict agree (B).
Sub-claim grades by effect
This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.
| Effect (sub-claim) | Grade | Basis |
|---|---|---|
| Reduced short-term treatment failure in rigorously diagnosed infant acute otitis media | B | Two independent trials reproduced large absolute differences. |
Cross-check — Codex and Claude
Evidence Table
| Study | Design | Sample | Funding | Endpoint | Result | Weight |
|---|---|---|---|---|---|---|
| Study 1 | Double-blind placebo-controlled randomized trial | 319 | European Society for Paediatric Infectious Diseases fellowship and Finnish nonprofit foundation and hospital research funds | Time to first treatment failure | Failure 18.6% versus 44.9%; HR 0.38 (95% CI 0.25 to 0.59), P<0.001 | Pivotal all-randomized evidence |
| Study 2 | Double-blind placebo-controlled randomized trial | 291 | U.S. National Institute of Allergy and Infectious Diseases | Clinical failure at days 4 to 5 and 10 to 12 | Clinical failure at days 10 to 12 was 16% versus 51%, P<0.001 | Independent replication evidence |
Receipt — 2 References
All 2 cited sources were verified for existence at the original page (as of 2026-08-01).
Reviewed and approved: Chamgap Editorial Team · Approval date: 2026-08-01 · Corrections: none
Cite this verdict
[Chamgap] Amoxicillin-clavulanate x treatment failure in infant acute otitis media — Evidence Grade B·73. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/immunity/amoxicillin-clavulanate-infant-acute-otitis-media-treatment-failure/ · CC BY 4.0CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.
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Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.