Full CoverageUnreliable data: how doubt snowballed over Covid-19 drug research that swept the world
By Melissa Davey
Top news
Controversy over data in hydroxychloroquine COVID-19 study grows
By Chris Dall
Retracted studies may have damaged public trust in science, top researchers fear
By Melissa Davey
India expands use of controversial drug for coronavirus despite safety concerns
By Priyanka Pulla
'Truly sorry': Scientists pull panned Lancet study of Trump-touted drug
By Michael Erman & Kate Kelland
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A Randomized Trial of Hydroxychloroquine as Postexposure Prophylaxis for Covid-19
By Katherine Huppler Hullsiek
Lancet, New England Journal retract Covid-19 studies, including one that raised safety concerns about malaria drugs
By Andrew Joseph
Malaria Drug Promoted by Trump Did Not Prevent Covid Infections, Study Finds (Published 2020)
By Denise Grady
No Evidence Hydroxychloroquine Is Helpful In Preventing COVID-19, Study Finds : Shots - Health News
By Joe Palca
The Lancet retracts large study on hydroxychloroquine
By Erika Edwards
Two coronavirus studies retracted after questions emerge about data
By Jamie Gumbrecht & Maggie Fox
Malaria drug fails to prevent COVID-19 in a rigorous study
By Marilynn Marchione
Surgisphere: governments and WHO changed Covid-19 policy based on suspect data from tiny US company
By Sarah Boseley, Stephanie Kirchgaessner & Melissa Davey
Coronavirus: Malaria drug hydroxychloroquine 'does not save lives'
By James Gallagher
Covid-19: Lancet retracts paper that halted hydroxychloroquine trials
By Sarah Boseley & Melissa Davey
Study: Hydroxychloroquine had no benefit for hospitalized Covid-19 patients, possibly closing door to use of drug
By Matthew Herper
Two Huge Covid-19 Studies Are Retracted After Scientists Sound Alarms (Published 2020)
By Roni Rabin & Ellen Gabler