Evidence map›Paper›PMID 40500760›Full record

SynthesisJournal of translational medicine2025

Who should be included in first-in-human trials? A systematic review of reasons.

Lieke van Kempen, Martine C de Vries, Eelco J P de Koning, Nienke de Graeff

Abstract readSystematic Review
In one paragraph

Synthesis in Journal of translational medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Lieke van KempenDepartment of Medical Ethics and Health Law, Leiden University Medical Center, Leiden, The Netherlands. l.van_kempen@lumc.nl.ORCID 0009-0005-8158-7126
Martine C de VriesDepartment of Medical Ethics and Health Law, Leiden University Medical Center, Leiden, The Netherlands.
Eelco J P de KoningDepartment of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands.
Nienke de GraeffDepartment of Medical Ethics and Health Law, Leiden University Medical Center, Leiden, The Netherlands.

Funding

The Novo Nordisk Foundation Center for Stem Cell Medicine, reNEW NNF21CC0073729
6 · The paper itself

Abstract

backgroundFirst-in-human trials mark a significant turning point in translational research, with novel therapies being tested in humans for the first time. Who should be included in FIH trials is a topic of ongoing debate amongst researchers, clinicians, ethicists, and sponsors. Yet, no comprehensive overview of the literature on this topic has been constructed before.

methodsA systematic review of reasons was conducted, following the methodology outlined by Stretch and Sofaer for conducting systematic reviews of argument-based literature. Six online databases were consulted across various disciplines, including medicine (PubMed and Embase), philosophy (The Philosopher's Index and PhilPapers), and multidisciplinary studies (Web of Science and Academic Search Premier). Additionally, relevant books and book chapters were identified through the library of Leiden University. After data extraction and analysis, 80 publications were included.

results181 reasons were identified amongst six potential participant categories: healthy volunteers, patients (general), patients with less advanced-stage diseases, patients with more advanced-stage diseases, vulnerable populations, and diverse participant groups. These reasons relate to six themes: non-maleficence, beneficence, scientific value, efficiency, respect for persons, and justice. This review highlights multiple challenges in the existing literature, including ambiguous or poorly defined reasons and unspecified use of moral theory, framework, or method, the use of beneficence as an important theme for including participants in FIH trials, and the complexity of identifying and defining vulnerable populations.

conclusionsThis review provides the first comprehensive overview of the reasons for and against including potential participant groups in FIH trials. The results highlight considerations that are relevant to reflect upon when determining and justifying participant selection for FIH trials. Additionally, this review offers guidance for further normative inquiry.

Indexed as

Clinical Trials as TopicPatient SelectionHumansBench-to-bedsideClinical trialsEthicsFirst-in-humanParticipant selectionSystematic review of reasonsTranslational medicine

Identifiers

PMID40500760
PMCPMC12160108

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.