“We write to assure you that Congress understands that a more risk-tolerant development process is likely appropriate in the case of a COVID-19 vaccine,” Foster and Shalala wrote in the letter.
“In the case of accelerated human trials, justifiable risks may be taken by parallel testing of multiple dose levels, advancing more rapidly from phase to phase and potentially by challenge trials that involve deliberately infecting volunteers who have received candidate vaccines or placebos to confirm the efficacy of those vaccines and are at very low risk of serious disease from the infection.”
Dr. Rajeev Fernando, infectious disease specialist and rapid responder at three New York hospitals, supports HCS if it can speed up the process of finding a vaccine. “I really support these kinds of trials right now,” he told The Epoch Times. “As a matter of fact, if I had an option, I’d be more than happy to be a part of these trials.”
“The virtue of a human challenge trial is that it cuts to the chase, so to speak, with 100 percent of those in the study exposed,” Kirk Allison, a faculty member in Health Humanities at Saint Scholastica College and Adjunct Professor of Theology at the University of Saint Thomas teaching bioethics-related courses, told The Epoch Times in an email.
According to Allison, the number of participants needed in a challenge study in both the vaccination and placebo group are “lower to obtain a statistically significant result.” This is an advantage since “an adverse result following exposure would become apparent with far fewer individuals exposed to the vaccine than in a traditional phase 3 efficacy study.”
Nesheiwat questions the need for challenge studies as the vaccine trials are already moving at “an extraordinarily fast pace” to get a vaccine out in 18 months. Traditionally, it takes about “10-15 years to get a vaccine on the market and it costs millions of dollars” as the vaccines have to go through three different trial phases.
In the standard trial phases, Fernando says that in phase one, “probably less than 100 people” are clinically assessed for adverse effects and to confirm the safety of the candidate vaccine before moving on to the second phase involving several hundred test subjects. “The last one, that’s the real one, which you have to watch these people very closely,” Fernando said. Thousands of people are monitored over a long period to study the efficacy of the vaccine.
Opponents Say Too Much Is Unknown About COVID-19
Human challenge studies have been conducted for a long time since they were first experimented on in 1796 when Edward Jenner inoculated a young, healthy boy with the pus of a smallpox sore, only after he was first given the supposed “vaccine” that consisted of pus from a cowpox sore on cuts of the boy’s arm. The boy did not fall ill to the disease.HCS has evolved since then to help scientists learn about certain diseases and their treatments. They are particularly used to test vaccines for a disease that has therapeutic treatments or can be cured.
It is deeply concerning for opponents of the CCP virus challenge studies when there is still much that is unknown about the virus as physicians continue to learn new things about it. In addition, there currently is no treatment or a cure for the disease if a consenting volunteer develops a serious illness.
Allison says to address the adverse effects that may arise from the vaccine study in a standard trial or an HCS, participants in the studies should be “covered for any expenses and costs proceeding from participation (including for any adverse medical outcomes).”