Evidence map›Paper›PMID 33231107›Full record

ArticleClinical trials (London, England)2021

Details of risk-benefit communication in informed consent documents for phase I/II trials.

Hannes Kahrass, Sabine Bossert, Christopher Schürmann, Daniel Strech

Abstract read
In one paragraph

Article in Clinical trials (London, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Early-Phase Clinical Trials of Bio-Artificial Organ Technology: A Systematic Review of Ethical Issues.Transplant international : official journal of the European Society for Organ Transplantation · 2022
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. [Transparency in clinical research: What contribution does the new EU Regulation 536/2014 make?]Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2023
    Review
  9. Article
  10. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Hannes KahrassInstitute for History, Ethics and Philosophy of Medicine, Hannover Medical School, Hannover, Germany.ORCID 0000-0003-0694-0354
Sabine BossertInstitute for History, Ethics and Philosophy of Medicine, Hannover Medical School, Hannover, Germany.
Christopher SchürmannInstitute for History, Ethics and Philosophy of Medicine, Hannover Medical School, Hannover, Germany.
Daniel StrechInstitute for History, Ethics and Philosophy of Medicine, Hannover Medical School, Hannover, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInformed consent documents for clinical studies should disclose all reasonably foreseeable risks and benefits. Little guidance exists on how to navigate the complexities of risk-benefit communication, especially in early clinical research. Practice-oriented development of such guidance should be informed by evidence on what and how details of risks and benefits are currently communicated.

methodWe surveyed the responsible parties of phase I/II trials registered in ClinicalTrials.gov that started 2007 or later and completed between 2012 and 2016 to sample informed consent documents from a broad spectrum of early phase clinical trials. Based on an assessment matrix, we qualitatively and quantitatively assessed the informed consent documents for details of risk-benefit communication.

resultsThe risk-benefit communication in the 172 informed consent documents differed substantially in several regards. The outcome, extent, and likelihood of health risks, for example, were described in 83%, 32%, and 63% of the informed consent documents. Only 45% of informed consent documents specified the outcome of mentioned health benefits, and the extent and likelihood of health benefits were never specified. From those informed consent documents reporting risk likelihoods, only 57% added frequency numbers to words such as "common" or "rare," and even in these cases, we found strong variations for presented frequency ranges. Substantial heterogeneity also exists for how informed consent documents communicate other risk and benefit types and related safeguards.

conclusionOur study points to several shortcomings and heterogeneities in how informed consent documents communicate risks and benefits to potential research participants. Health risks, for example, should be specified with frequency numbers, and health benefits should be specified at least by mentioning their outcomes. Further demand for research and policy development is needed to harmonize risk-benefit communication and to clarify ways to specify the likelihood of health benefits.

Indexed as

Consent FormsInformed ConsentRisk AssessmentClinical Trials, Phase I as TopicClinical Trials, Phase II as TopicCommunicationHumansSurveys and QuestionnairesInformed consentinformed consent documentphase I/II trialsrisk–benefit assessmentrisk–benefit communication

Identifiers

PMID33231107
PMCPMC7876653

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.