Here are the reasons why so many layoffs are happening, this is just a small set of pieces of info that may help you figure out why this business model is not sustainable:
USA Today - The House of False Hope
https://www.usatoday.com/story/news/2017/04/27/cancer-treatment-hype-gives-false-hope-many-patients/100972794/
Reuters - Special Report: Behind a cancer-treatment firm's rosy survival claims
https://www.reuters.com/article/us-usa-cancer-ctca/special-report-behind-a-cancer-treatment-firms-rosy-survival-claims-idUSBRE9250L820130306
CTCA Glassdoor Employee Feedback – IT’S A SCAM
https://www.glassdoor.com/Reviews/Employee-Review-Cancer-Treatment-Centers-of-America-RVW4313130.htm
Forbes - Making a Profit from Offering Ineffective Therapies to Cancer Patients
https://www.forbes.com/sites/stevensalzberg/2012/12/31/making-a-profit-from-offering-ineffective-therapies-to-cancer-patients/#775874c4a2b4