The National Cancer Center in Goyang, South Korea says the promotion of Fenbendazole as a cancer treatment is a scandal.

Here's the study:

"How cancer patients get fake cancer information: From TV to YouTube, a qualitative study focusing on fenbendazole scandal"

https://www.frontiersin.org/articles/10.3389/fonc.2022.942045/full

"It started with the claim of American cancer patient, Joe Tippens, but rather became sensational in South Korea. It caused
national confusion and led to fenbendazole being sold out at pharmacies across the country in South Korea. Contrary to what
the people know, however, Joe Tippens was a participant in the Kitruda clinical trial at the MD Anderson Cancer Center, and
his improvement was likely to be the effect of immuno-cancer drugs. So, at the beginning of the issue, health authorities
and experts in South Korea warned about side effects through press releases on September 23, 2019, but cancer patients
ignored them. Instead, people were interested in a celebrity, a famous comedian in Korea, taking fenbendazole. The false
information continued to spread until the celebrity declared that “it is ineffective.” (The celebrity announced his intention
to take fenbendazole on Social Networking Service (SNS) on September 24, 2019, while suffering from lung cancer. In September
2020, he mentioned that he would not take fenbendazole or recommend it. He eventually died in December 2021)."

Indeed, I have pointed out before that Joe had already taken Keytruda, so it is impossible to prove that Fenben was the cause of his recovery, as Joe claims. But it is also too much of a stretch to suggest that his recovery was likely due to the Keytruda treatment. 

Here's a story on Keytruda out of Belgium:
Half of Belgian patients who received expensive cancer treatments such as Keytruda and Opdivo died within a year of starting this treatment.

One in ten patients died in the month following the administration of the drug!

That's not a scandal?