Patient Testimonials

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What a remission! In 2012, I was unexpectedly diagnosed with vocal cord cancer. The growth could be removed by laser surgery, but it came back again and again in the following years. In total I had 10 such surgeries within 5 years. In the summer of 2017, the tumor in the larynx started to grow strongly and I slowly began to suffocate. In conventional medicine, extremely hard radiation therapy accompanied by 2-3 rounds of chemotherapy where recommended. Since severe life-long consequential damage is to be expected after this treatment, I was alternatively suggested to remove the larynx (throat). This would have caused the complete loss of my voice. For me personally, neither was an option! In the meantime, I did my research about additional treatment options and I knew that I wanted to go in this direction. My medical and integrative Doctor, as some of my friends recommended Dr. Ralf Kleef. Right at my first visit I had the strong feeling that I was in the right place. Dr. Kleef started his treatment with an individualized combination of fever therapy, hyperthermia and checkpoint inhibitors. After just a few weeks this impressive process began where my immune system started to fight the tumor in my larynx. At first the tumor enlarged a little bit, but then slowly shrank. It was a painful process, but it worked perfectly. The tumor disappeared. I still have my larynx today and can speak practically normal. I am very grateful to Dr. Kleef and his team! I am healthy!
Michael Silva Kutalek
Diana-1600x1600
Stepping into Dr. Kleef’s office was like entering a spa. After being labeled as a number for months I finally was treated like a human being.
Diana Wright, ND
woman
Overcoming cancer is never easy, but it doesn't have to be the worst time of your life. If you choose to receive care from Dr. Kleef and his staff, you are choosing a path of healing and holistic care. I not only healed my body, I also made new friends and learned more about myself and my own health than I ever expected to. This clinic is nothing short of incredible.
Anna Carlini
woman
Overcoming cancer is never easy, but it doesn't have to be the worst time of your life. If you choose to receive care from Dr. Kleef and his staff, you are choosing a path of healing and holistic care. I not only healed my body, I also made new friends and learned more about myself and my own health than I ever expected to. This clinic is nothing short of incredible.
Anna Carlini
Terry Mah copy
Being diagnosed with Stage IV Pancreatic Cancer does not offer a positive prognosis. Finding Dr. Kleef and combining his treatments with our own methodologies of BodyTalk and mind work, means that I am here rounding the corner of 5 years of surviving a terminal diagnosis. My praise for Dr. Kleef as a world-renowned oncologist is so high! He helped save my life and that is all there is to it. There is no other treatment facility I would trust more…. Dr. Kleef is simply the best there is.
Terri Mah
After my breast cancer recurred and my only conventional options were to have chemotherapy and radiation, I was referred to Dr. Kleef by my integrative oncologist. I spent four weeks in Vienna in early 2018 has a variety of treatments including hyperthermia and immunotherapy. The clinic was beautiful and the staff treated me very well. The treatments were tiring but nothing like what full-dose chemo and radiation would have been as far as side effects. I am now almost four years out and thanks to Dr. Kleef's care and my continued work with my oncologist in the States, I remain in remission from my stage III breast cancer. Dr. Kleef's clinic has kept in touch with me and has been responsive to any questions I had after I got home and over the past four years. Although stage IV cancer is a much more serious diagnosis, I believe that Dr. Kleef has been able to help many people with advanced cancer live a longer and healthier life and I would definitely recommend him to others seeking integrative cancer treatment.
Elena Gallenberger
man
As a physiologist, I was able to research and compare cancer treatments from clinics all over the world. In my opinion, this is the best choice for treatment there is. They have some amazing cures to their credit including a stage 4 pancreatic. They have all the standard treatments found in all good cancer clinics but their most effective treatments are only available here. Dr. Kleef (a great guy) is a titan among oncologists and has a very professional, friendly staff. They are very cautious during treatment to ensure patient safety. It’s not cheap, so be sure to get an estimate of your costs beforehand. Nice people who will do everything they can to cure you.
Jeffrey Hall
man
After getting my scan results in early May 2021 that my tumors had all increased in size I knew in my own heart that I was finished with Chemotherapy (4 different types of chemo) and that I needed a plan B. That led me to Dr Kleef and after a good Skype consultation I traveled to the Clinic in early June 2021 for 5 weeks of treatment. The early results that the treatment is working and I am on the road to recovery, it will be difficult journey back to full health but to know that I’m on the right path is half the battle.
Leon Brennan
man2
Dr. Kleef is one of a kind. After my wife was diagnosed with stage IV breast cancer, we tried many treatments, both conventional and integrative around the world. Some worked for a little bit, but things always progressed and worse than before. We did a lot of research and Dr. Kleef was recommended by several long term stage IV survivors we had gotten in touch with and some of the best integrative oncologists in the US. The results have been astonishing. Within three months tumor markers and all blood work were totally in normal range and the tumors are disappearing completely. My wife still has her hair and feels great, even though the treatment is intense at the time. The treatment is far less toxic, much more individualized and creative than anything else out there that we have come across and is an actual chance at a cure or long-term remission for advanced cancers. The treatment is designed to garner the immune system to defeat the cancer, and if it works, it has dramatic results. We met people in his office who had been told they had 3 months to live from their conventional oncologists that were coming back for maintenance treatments years and years later. We go back occasionally for maintenance as well but things are looking very good. The care there is first class and the staff is unbelievable, including the other doctors at the clinic. They are extremely careful and detail oriented. We have been at this for years now and no facility can compare to this. We are beyond grateful for him, his staff and his clinic.
David Ashville