Trial reportProstate cancer and prostatic diseases2020
Exposure to direct-to-consumer advertising is associated with overestimation of benefits regarding ultrahypofractionated radiation therapy for prostate cancer.
Trial report in Prostate cancer and prostatic diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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
1 citing paper in PubMed, 4 citations in OpenAlex.
- Patient Understanding of Oncology Clinical Trial Endpoints in Direct-to-Consumer Television Advertising.The oncologist · 2023Trial
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWhile direct-to-consumer (DTC) medical advertising can provide useful information, it also risks oversimplification and being misleading. For an abbreviated prostate cancer treatment regimen called "ultrahypofractionation" (UHF), advertising has been used for CyberKnife (CK), a common delivery system for stereotactic body radiation therapy. We hypothesized that those viewing an advertisement for CK versus factual information would have inaccurate impressions of effectiveness and safety.
methods400 men aged 40-80 were randomly assigned to one of four arms: a de-identified CK advertisement, the same advertisement with disclaimers, scientific information obtained from review of contemporary peer-reviewed literature, and a control. Subjects answered questions regarding risks/benefits of CK and likelihood of pursuing CK versus other treatments. Regression analysis was performed to determine factors associated with CK preference.
results400 men were included. Compared to controls, those who viewed any of the three interventions were more likely to pursue CK over other treatments (p < 0.01), with a greater increase in the advertisement groups. Respondents who viewed scientific information were less likely to agree CK is superior regarding impotence and urinary dysfunction. Disclaimers decreased positive impressions of CK's side effects, but not effectiveness. Both advertisement and advertisement with disclaimer respondents were more likely to consider CK superior.
conclusionsDTC medical advertisements can be misleading and impact laypersons' impressions. In this case, viewing an advertisement created inaccurate impressions regarding effectiveness and safety of UHF for prostate cancer.
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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.