“Massive breakthrough,” begins a graphic recently posted on Facebook. “Cancer disappears in all patients completely ‘first time in history’ after drug trial.”
It includes an image of cancer cells.
The graphic has been viewed over 130,600 times so far. It was flagged as potentially false by the Meta fact-checking programme’s algorithm.
But it doesn’t say when or where the drug trial took place. Did cancer disappear completely after a drug trial? And was this the first time in history it happened? We checked.
Study of 12 rectal cancer patients treated with dostarlimab
The study looked at the drug dostarlimab as a treatment for patients with rectal cancer. Dostarlimab had previously been used to treat cancer of the uterus – endometrial cancer – and tumours. It helps the immune system identify and attack cancerous cells.
“At the time of this report, no patients had received chemoradiotherapy or undergone surgery, and no cases of progression or recurrence had been reported during follow-up,” the report says. The follow-up time ranged from six to 25 months.
But the report does not call dostarlimab a cure, saying: “Longer follow-up is needed to assess the duration of response.”
Medical experts told the New York Times, a US newspaper, that they considered the 100% success rate “unheard of”. We could not find evidence that another cancer-related clinical trial achieved the same result.
For publishers: what to do if your post is rated false
A fact-checker has rated your Facebook or Instagram post as “false”, “altered”, “partly false” or “missing context”. This could have serious consequences. What do you do?
Click on our guide for the steps you should follow.Publishers guide
Africa Check teams up with Facebook
Africa Check is a partner in Facebook’s third-party fact-checking programme to help stop the spread of false information on social media.
The content we rate as “false” will be downgraded on Facebook and Instagram. This means fewer people will see it.
You can also help identify false information on Facebook. This guide explains how.