Today marks Clinical Trials Day, an internationally recognized date to honor the collaborative efforts of those who conduct clinical trials and those who participate in them and how their work contributes to public health and medicine.
The clinical trials community at UW–Madison is supported by the UW Clinical Research Office, a partnership between the University of Wisconsin School of Medicine and Public Health and UW Health.
Clinical trials are research studies in which experts exam new treatments, drugs, medical devices or interventions to determine what has the most benefit and least harm to yield the best patient outcomes, according to Dr. Nasia Safdar, associate dean for clinical trials.
“Any major advancement in medicine is the result of a clinical trial,” she said. “Medical conditions need treatments, and you can’t find out which treatment works best without a clinical trial.”
To determine which therapies are effective, researchers create clinical trials to test them in a group of human volunteers. Researchers use rigorous, methodologically sound techniques to track and analyze data and yield accurate results, Safdar said.
“Clinical trial participation should be viewed as part of an overall health care plan, rather than a ‘last resort’ treatment option,” she said.
There are four phases of clinical trials, according to Safdar.
- Phase 1: Safety: First, a small group of healthy volunteers help determine safety through things like blood tests and questionnaires.
- Phase 2: Efficacy: The next step is to evaluate the benefit and effectiveness in a small group of volunteers.
- Phase 3: Next is a full scale, large volunteer group – typically thousands of participants – in a randomized clinical trial to understand the performance of the investigational product and learn more about any side effects that may occur.
- Phase 4: Finally, after the Food and Drug Administration (FDA) has approved the drug, device, treatment or intervention, individuals receiving it in the “real world” setting will be monitored to ensure it performs as expected. Many participants in phase 4 of a clinical trial were not in the earlier phases.
There are more than 300 clinical trials ongoing at UW Health and the UW School of Medicine and Public Health for everything from cancer to aging to cardiovascular diseases to COVID-19, according to Betsy Nugent, chief clinical research officer, UW Health.
“The pandemic brought clinical trials into the spotlight as health leaders across the world quickly ramped up efforts to identify safe and effective vaccines to save lives,” Nugent said.
The safety measures involved in COVID-19 vaccine trials met the same rigorous standards as all clinical trials, but due to tremendous collaborative effort by clinical trial professionals, data were collected more rapidly than usual, she said.
