Why Is It Ethical To Reports Information About Clinical Studies?

Is it ethical to report information to a person suffering from a devastating disease, about clinical studies that show promise, but the information has not been fully tested and has not completed the required trials? This question is controversial because some people might think that it isn’t ethical, because you can’t get someone’s hopes up and then crush them when the treatment ends up not working. Others might say that they should be given information about clinical studies, because if it has worked more than once, then it may just work every time. There is no reason to put the clinical study through years of testing when it is proven to work. To put the clinical study through an immense amount of testing is just wasting time and money.
If it’s been tested a few times and it has been proven effective then it wouldn’t be necessary for anymore trials. If it has just been introduced and has worked sometimes and other times didn’t do much then it should go through more trails until it will effectively work. When a new treatment is introduced it would be wrong to let a patient know about it, because there is always a chance that it may not work leaving the patient devastated.
If a person is in the last stage of a disease and really doesn’t have a chance of surviving then giving them information on a new treatment could be both ethical and unethical. It would be ethical, because the patient would have hope that they could possibly live longer and it wouldn’t hurt them to try, because they know they are going to die. It would be unethical if the treatment ends up not working leading to the grief of the patient who though they might live longer and then finding out that the treatment didn’t work and their no chance of their survival, which will lead to depressed patients and