Could immuno-oncology treatments get a boost from a 64-year-old antipsychotic?

Could immuno-oncology treatments get a boost from a 64-year-old antipsychotic?

Source: 
Fierce Biotech
snippet: 

Prochlorperazine (PCZ) was first approved by the FDA back in 1956 to treat psychosis, and, even though it’s been overtaken by newer antipsychotics, it’s still prescribed today to relieve nausea and vomiting. Now, Australian researchers are suggesting a new use for the drug: to improve the effectiveness of checkpoint inhibitors and other antibodies in cancer.