The end of a long and shameful debacle: Prof Michael Frass’ infamous cancer study will be retracted

The End of a Long and Shameful Debacle

Prof Michael Frass' infamous cancer study will be retracted.

Background

In November 2020, Frass et al published a study that prompted confusion and concern. The study's conclusions were:

The study suggests that homeopathy positively influences not only QoL but also survival.

Criticism and Concerns

On 7 October 2020, concerns about this research were raised in a blog post with 13 questions about the trial. Many more in-depth critiques have been published by colleagues, including:

Author's summary: Frass' cancer study retracted due to concerns.

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Edzard Ernst Edzard Ernst — 2025-10-29

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