It is not unusual for clinical trials in the final stage to face a problem, as they are designed to increase the number of participants to thousands or tens of thousands to get rid of side effects that may be rare, according to what she told the scientific journal Sciencealert, while commenting on the moratorium of the American pharmaceutical company Eli Lilly the third phase of A trial of treating corona with antibodies produced in the laboratory for patients in the hospital.
The trials of the Corona virus vaccine were subjected to three unexpected shocks in the final stages, and despite the whole world waiting for good news or new hope about the date of producing a vaccine or a safe treatment to block the virus attacks, the opposite happened.
Two medical trials in the last phase of vaccines and treatment of the Corona virus were stopped within 24 hours due to possible safety concerns, which are the latest setbacks for scientists in their long struggle against the epidemic.
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