Final answer:
A physician can find clinical trials for a cancer patient through the database developed by the National Library of Medicine, namely ClinicalTrials.gov, which lists various clinical studies worldwide.
Step-by-step explanation:
If a physician has a patient with a cancer that is not responding to treatment and wants to locate any existing clinical trial, the physician can utilize a database developed by the National Library of Medicine. This resource is known as ClinicalTrials.gov, and it contains a comprehensive registry of publicly and privately supported clinical studies conducted around the world.
The National Library of Medicine, a part of the National Institutes of Health, is responsible for creating and maintaining this valuable database for researchers, healthcare providers, and patients alike. Physicians seeking to find the latest clinical trials can use this database to search for trials by type of cancer, location of studies, and other criteria.
Researchers and healthcare professionals can also find detailed scientific information and research at the
National Cancer Institute, another indispensable resource focusing on the biology of cancer and ongoing research in the field.