Alexander Valdman
Clinical trials sponsored by Alexander Valdman, explained in plain language.
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Can precision protons spare rectal cancer patients from harsh side effects?
Disease control Recruiting nowThis trial is testing whether proton beam radiation, a more precise form of radiation, causes fewer stomach and bowel side effects than standard photon radiation when given before surgery for high-risk rectal cancer. About 254 patients will be randomly assigned to receive either …
Phase: NA • Sponsor: Alexander Valdman • Aim: Disease control
Last updated Aug 12, 2026 00:00 UTC
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A new radiation combo may spare the rectum in early cancer
Disease control Recruiting nowThis trial tests whether a combination of contact X-ray brachytherapy and short-course radiotherapy can preserve the rectum in people with early-stage rectal cancer. Participants receive this experimental radiation regimen, with some also getting chemotherapy. The goal is to see …
Phase: NA • Sponsor: Alexander Valdman • Aim: Disease control
Last updated Aug 12, 2026 00:00 UTC