Trial reportAtencion primaria2019
Efficacy of high doses of penicillin versus amoxicillin in the treatment of uncomplicated community acquired pneumonia in adults. A non-inferiority controlled clinical trial.
Trial report in Atencion primaria, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.
- Pooled it
- Identifying the Best Initial Oral Antibiotics for Adults with Community-Acquired Pneumonia: A Network Meta-Analysis.Journal of general internal medicine · 2024Pooled it
- Analysis of ESAC-Net/EARS-Net Data from 29 EEA Countries for Spatiotemporal Associations Between Antimicrobial Use and Resistance-Implications for Antimicrobial Stewardship?Antibiotics (Basel, Switzerland) · 2025Article
- Reply to Sumiyoshi, "Concerns about the interpretation of treatment effects".Antimicrobial agents and chemotherapy · 2024Article
- Toxin-like Peptides from the Bacterial Cultures Derived from Gut Microbiome Infected by SARS-CoV-2-New Data for a Possible Role in the Long COVID Pattern.Biomedicines · 2022Article
- Intravenous Amoxicillin Plus Intravenous Gentamicin for Children with Severe Pneumonia in Bangladesh: An Open-Label, Randomized, Non-Inferiority Controlled Trial.Life (Basel, Switzerland) · 2021Article
- Penicillin disrupts mitochondrial function and induces autophagy in colorectal cancer cell lines.Oncology letters · 2021Article
- Reduning injection combined with western medicine for pneumonia: A protocol for systematic review and meta-analysis.Medicine · 2020Article
- Phenoxymethylpenicillin Versus Amoxicillin for Infections in Ambulatory Care: A Systematic Review.Antibiotics (Basel, Switzerland) · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionCommunity-acquired pneumonia (CAP) is treated with penicillin in some northern European countries.
objectivesTo evaluate whether high-dose penicillin V is as effective as high-dose amoxicillin for the treatment of non-severe CAP.
designMulticentre, parallel, double-blind, controlled, randomized clinical trial.
setting31 primary care centers in Spain.
participantsPatients from 18 to 75 years of age with no significant associated comorbidity and with symptoms of lower respiratory tract infection and radiological confirmation of CAP were randomized to receive either penicillin V 1.6 million units, or amoxicillin 1000mg three times per day for 10 days. MAIN MEASUREMENTS: The main outcome was clinical cure at 14 days, and the primary hypothesis was that penicillin V would be non-inferior to amoxicillin with regard to this outcome, with a margin of 15% for the difference in proportions. EudraCT register 2012-003511-63.
resultsA total of 43 subjects (amoxicillin: 28; penicillin: 15) were randomized. Clinical cure was observed in 10 (90.9%) patients assigned to penicillin and in 25 (100%) patients assigned to amoxicillin with a difference of -9.1% (95% CI, -41.3% to 6.4%; p=.951) for non-inferiority. In the intention-to-treat analysis, amoxicillin was found to be 28.6% superior to penicillin (95% CI, 7.3-58.1%; p=.009 for superiority). The number of adverse events was similar in both groups.
conclusionsThere was a trend favoring high-dose amoxicillin versus high-dose penicillin in adults with uncomplicated CAP. The main limitation of this trial was the low statistical power due to the low number of patients included.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.