Well, that was an interesting listen. If you only listen to the first 20 mins, it is worth it.
Long post .. but I think we all might find it interesting - about the vaccines.
Dr Soumya Swaminathan is one of the vaccine experts answering vaccine questions, as people from around the world call in with questions. She said that the side effect that the UK participant suffered in the Oxford vaccine trials is a severe side effect, so the trial was halted. Normal procedure because safety is of the highest priority in any clinical trial.
The data safety monitoring board will look into the details, there will be discussions, and then a decision will be made on how to proceed.
It is a good lesson for everyone that there are ups and downs, and we have to be prepared for that.
We do not need to be overly discouraged, these things happen, we have to wait for the determination by the safety monitoring board. We hope that things will be able to move on, but it depends.
Dr Soumya Swaminathan - in answering a question about the 35 good vaccine candidates, which one could be ready by October.
Clinical trials take time, you cannot rush them, you have to collect enough data on enough numbers of people to satisfy the regulatory agencies. This requires 30,000 - 60,000 people being tested. The participants as well as the doctors do not know who has received the placebo and who has received the vaccine.
They have to be followed up for a minimum of 6 months. A few trials did start in July so it is possible some interim results may come through by the end of the year.
However, follow up for safety needs to continue for longer. The regulatory agencies would need some time to examine those results, and then take an opinion on whether the vaccine is ready for licensing.
It could be the end of the year, the beginning of next year, before we start seeing some results. There is no way of predicting which ones are going to be effective. The proof actually lies in doing the trials.
The data from Phase One and Phase Two has been quite promising for most of the candidates.
Dr Michael Ryan added that the vaccinators do not know who receives the vaccine, and the resulting data is sent to the regulatory authority, and then analysed again.
The reason for this is to make sure that the process is done in the most direct, scientific and honest way possible. And that takes time.
It is not a race against companies and countries. It is a race to support public health in the safest way possible, let's not bet on any horses until we get to the end of this race.
Dr Bruce Aylward added that the reality is it takes longer to recruit people than is thought, build their confidence, have them exposed to the virus ... it takes longer to reach the clinical end points. The timelines inevitably run long. If you look at the current trials, we are not hitting the best possible timelines.
We are really looking at late this year, early next year to have the preliminary results on these products ... at the earliest.
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