I am surprised they did not mention bone marrow transplants. There are some studies on nih.gov [1] showing results for Remission of Psychosis in Treatment-Resistant Schizophrenia following Bone Marrow Transplantation<p>As an interesting side note, it works both ways. A bone marrow transplant from a person with Schizophrenia to a person that previously did not will result in both having it.<p>[1] - <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5613125/" rel="nofollow">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5613125/</a>
It's understandable, as talk therapy is basically useless against untreated Schizophrenia. Unlike other mental illnesses, a tether to reality has to be created first - and that can only be done chemically/biologically through medication.<p>Psychotherapy requires a relationship; relationships are built on trust. The psychologist simply cannot complete against the will of the patient's reality (their untreated persona/thoughts). Not even their loved ones can, and doctors are complete strangers (and when it comes to those whose symptoms include paranoia, doctors are in fact the enemy). It's a fool's errand until an effective medication regimen is underway.