‘Colossal Maybes’: Chloroquine and hydroxychloroquine ‘largely failed’ to improve coronavirus patient survival rates in early, small studies

im
Credit: Photo: Xu Congjun/Utuku/Ropi/Zuma Press

The malaria drugs touted by President Trump as potentially “the biggest game changers in the history of medicine” have received a decidedly more sober assessment of their coronavirus-fighting potential from researchers in China, France and Brazil.

Both chloroquine and its close relative hydroxychloroquine offered signs that they may ease some of the hallmark symptoms of coronavirus infection in patients who were hospitalized with COVID-19. But the drugs largely failed to deliver improvements on other key measures when evaluated in rigorous research studies.

In research done in France, hydroxychloroquine reduced neither deaths nor admissions to intensive care units among patients who received it. In a study conducted in China and another in Brazil, the two drugs failed to help patients clear the coronavirus faster.

“My own impression so far is that these medications are a colossal ‘Maybe,’” said Dr. Michael H. Pillinger, a professor of medicine at New York University and chief of rheumatology at the Veterans Affairs’ New York Harbor Healthcare System.

But researchers in the United States cautioned that the small number of patients in the studies, their hurried execution and the difficulty of assessing any drug during a medical crisis made all of the findings far from definitive. And it doesn’t help that the drugs have become political footballs, they added.

Read the original post

{{ reviewsTotal }}{{ options.labels.singularReviewCountLabel }}
{{ reviewsTotal }}{{ options.labels.pluralReviewCountLabel }}
{{ options.labels.newReviewButton }}
{{ userData.canReview.message }}

Related Articles

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Does glyphosate—the world's most heavily-used herbicide—pose serious harm to humans? Is it carcinogenic? Those issues are of both legal and ...

Most Popular

Picture1
The Orange Bowl without oranges: Can CRISPR save Florida citrus?
global warming
‘Implausible’: Top climate scientists reject worst-case scenario—soaring temperatures and fast-rising sea levels
vax-misinformation-main
Facts & Fallacies Podcast: Limit free speech to blunt social media misinfo?
Screenshot 2026-05-22 at 11.31
‘Realistic and durable’: EPA proposes loosening restrictions on some PFAS ‘forever chemicals.’
ChatGPT-Image-May-1-2026-11_42_59-AM-2
Viewpoint: NAD is the wellness grifters latest evidence-lite longevity fad. At least the mice are impressed.
Screenshot-2026-04-22-at-12.21.32-PM
Viewpoint: Why the retracted Monsanto glyphosate study doesn’t change the science—the world’s most popular herbicide is safe 
ChatGPT Image May 26, 2026, 12_06_53 PM
Fake Ebola cure promoters already cashing in as disinformation videos flood social media
ChatGPT Image May 24, 2026, 03_16_36 PM
Here come the biohackers' Enhanced Games—The Olympics for athletes doping up on steroids, hormones and peptides. What’s wrong with that?
Screenshot-2026-05-21-at-12.15.17-PM
UK gene-editing milestone: Livestock barley that increases ruminant value and reduces methane emissions is first-approved CRISPR crop
Picture1
The FDA couldn’t find a vaccine safety crisis, so it buried its own research
glp menu logo outlined

Get news on human & agricultural genetics and biotechnology delivered to your inbox.