Clinical Trials for New Medicines Flashcards

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What is a clinical trial for a new medicine?

A clinical trial is a test of a new medicine on human volunteers or patients to see how it works.

Why are clinical trials needed after tests on cells, tissues and animals?

Because humans can react differently, so the medicine must be checked for safety and usefulness in people.

What three main things are clinical trials designed to find out about a new medicine?

They find out if the medicine is safe, how well it works, and what the best dose is.

Who is usually given a new medicine in the first small clinical trials, and why?

A small number of healthy volunteers are used first to check basic safety and side effects.

After tests on healthy volunteers, who is given the new medicine next in clinical trials, and why?

Next, a small group of patients with the illness take it to see if it treats the disease and to refine the dose.

Why are later clinical trials carried out on large groups of patients?

Large groups give more reliable results and help to spot rare side effects and differences between people.

What is a control group in a clinical trial?

It is a group of patients who do not get the new medicine but get the usual treatment, for comparison.

Why is it important to compare patients who get the new medicine with a control group?

So doctors can tell if any changes in health are really caused by the new medicine.

Why must people give informed consent before taking part in a clinical trial?

They must understand what will happen and the possible risks, and then agree freely to take part.

What happens to the results of clinical trials before a new medicine is licensed for general use?

The results are checked by other scientists and regulators to make sure the medicine is safe and effective.