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Record W4409737850 · doi:10.1016/j.vaccine.2025.127176

Testing an experimental vaccine during a public health emergency: Lessons from a Peruvian case

2025· article· en· W4409737850 on OpenAlexaff
Claudio F. Lanata, Theresa J. Ochoa, Norman W. Baylor, Kathryn M. Edwards, Ruth Faden, Shabir A. Madhi, Hanna Nohynek, Charles Weijer

Bibliographic record

VenueVaccine · 2025
Typearticle
Languageen
FieldSocial Sciences
TopicVaccine Coverage and Hesitancy
Canadian institutionsWestern University
Fundersnot available
KeywordsPublic healthMedicineVirologyEnvironmental healthMedical emergencyNursing

Abstract

fetched live from OpenAlex

The Peruvian Government searched for a vaccine as a response to COVID-19. A clinical trial evaluating an inactivated SARS-CoV-2 vaccine was approved. A national news program revealed that Peru's president had received the vaccine outside the clinical trial, generating a national protest. The Peruvian National Academy of Medicine created a commission to identify improper procedures and provide guidance on how to prevent a similar case in the future. Commission members reviewed all publicly available documents and information sources and generated a final report. There were 6 ethical principles violations: 1) 3200 vaccine doses were used to vaccinate individuals outside the clinical trial; 2) prominent individuals were vaccinated outside of the clinical trial; 3) study conduct was monitored by a contract research organization with a conflict of interest; 4) an additional study was conducted with the vaccine without an approved protocol; 5) the placebo-controlled trial was continued when an approved vaccine was available; and 6) results of the clinical trial were not released. There were 5 regulatory procedures ignored: 1) no clinical trial supervision by a high-quality clinical monitoring agency outside Peru; 2) a university acting as a sponsor of a vaccine produced by a foreign company; 3) expedited reviews and approvals; 4) lack of adequate supervision by local regulatory bodies and the study contract research organization (CRO); and 5) no input from the Data Safety Monitoring Board. The COVID-19 health emergency created an environment where existing regulatory and ethical principles were circumvented under political pressure. Regulatory bodies and agencies should inform countries of the dangers of conducting clinical trials during a public health emergency and proper ethical and regulatory procedures should be followed. • Testing an experimental SARS-CoV-2 vaccine, as a response to the COVID-19 in Peru, included vaccinating individuals not participating in the vaccine trial. • The Peruvian Academy of Medicine created a commission to identify what was not done properly and recommend how to prevent a similar case in the future. • Six ethical principles were violated, and 5 regulatory procedures were not done properly. • Testing an experimental vaccine during a sanitary emergency, under high political pressure, creates and environment where existing regulatory procedures and ethical principles can be circumvented.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.020
metaresearch head score (Gemma)0.052
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Qualitative · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.020
Threshold uncertainty score0.108

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0200.052
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0100.007
Scholarly communication0.0050.005
Open science0.0030.006
Research integrity0.0160.010
Insufficient payload (model declined to judge)0.0070.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.072
GPT teacher head0.377
Teacher spread0.304 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designQualitative
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2025
Admission routes1
Has abstractyes

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