It's a novel approach, so there is more risk and more reward. I'd guess that it has a 5% chance of making it to market. Most likely, it's ineffective or unsafe

It's a novel approach, so there is more risk and more reward. I'd guess that it has a 5% chance of making it to market. Most likely, it's ineffective or unsafe (autoimmunity or a more mundane side effect), but it's also possible that that it's effective for many cancers or has very low side effects.