Randomised, crossover bioequivalence clinical trial of escitalopram 10 mg capsules versus escitalopram 10 mg film-coated tablets, after a single oral dose administration to healthy volunteers under fasting conditions.
This study is a research project looking at two different ways the antidepressant medicine escitalopram is given: in a 10 mg capsule and a 10 mg film-coated tablet. We want to see if these two forms of the medicine work the same way in the body. Healthy adult volunteers will take a single dose of each type of medicine on separate occasions after not eating for a while (fasting). This helps us understand if the body absorbs and uses the medicine equally well from both the capsule and the tablet. The main goal is to make sure that future patients who need escitalopram receive a consistent and effective dose, no matter which form of the medicine they take. This kind of study is common for new versions of existing medicines.
At a glance
What is this study about?
This study is like a comparison test for a very common antidepressant medicine called escitalopram. Imagine you need to take a vitamin, and it comes in both a capsule and a tablet. This study is trying to find out if taking the escitalopram in a 10 mg capsule gives your body the same amount of medicine, in the same way, as taking it in a 10 mg film-coated tablet.
Researchers do these kinds of studies, called 'bioequivalence' studies, to make sure that different versions of the same medicine work equally well. It's really important because it means that whether you're given a capsule or a tablet, your body should absorb the escitalopram in the same way, getting the right amount of medicine to help you. It's a key step in medicines development to ensure consistency and quality for patients.
Healthy volunteers are chosen for this type of research because their bodies are generally healthy and react in a predictable way. This makes it easier to clearly see how the medicine is absorbed and processed, without other health conditions making it complicated. The findings help doctors and pharmacists be confident that any approved version of escitalopram will be effective for people who need it.
Key takeaways
- This study compares two forms of the antidepressant escitalopram: a capsule and a tablet.
- The goal is to check if they deliver the same amount of medicine to your body.
- Healthy adults aged 18 and over, both men and women, can take part.
- You'll take a single dose of each medicine on separate days, usually after fasting.
- Small blood samples will be taken to measure the medicine's levels.
- Your participation helps ensure consistent medicine quality for patients.
Who may be eligible?
To join this study, you need to be a healthy adult who is at least 18 years old. There is no upper age limit, meaning older adults can also take part.
Both men and women are welcome to participate. It's important that you are generally in good health, as this study is designed to understand how the medicine works in a healthy person's body.
Because this summary is brief, there will be more detailed criteria about your health that the study team will explain to you. They will ask questions about your medical history and lifestyle to make sure the study is a safe and good fit for you.
Could this study suit you?
Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.
- Are you 18 years old or older?
- Are you generally in good health?
- Are you comfortable having blood samples taken?
- Are you able to follow fasting instructions?
- Are you available for a few study visits?
What does participation involve?
If you decide to take part, you would receive a single dose of the escitalopram capsule on one day and then, after a short break, a single dose of the escitalopram tablet on another day. Both times, you would be asked not to eat for a set period before taking the medicine. For a few hours after taking each dose, you would stay at the study clinic where nurses would take small blood samples at different times. These samples help the researchers measure how much of the medicine is in your body.
The study involves what's called a 'crossover' design, meaning you get both treatments (the capsule and the tablet) at different times. This allows researchers to compare them directly within the same person. You would have check-ups to make sure you're feeling well throughout. The total time you'd be involved in the study, including all visits and follow-ups, would be explained fully by the study team, but typically these kinds of single-dose studies are completed over a few days or weeks.
Potential risks and benefits
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Common questions
What is escitalopram?
Escitalopram is a medicine commonly used to treat depression and anxiety disorders. It belongs to a group of medicines called antidepressants.
Why do healthy people take part in studies like this?
Healthy volunteers help researchers understand how a medicine works in the body without other health conditions getting in the way. This gives clearer results.
What does 'fasting' mean in this study?
Fasting means you won't be allowed to eat or drink anything (except water) for a certain number of hours before taking the medicine. This is to make sure food doesn't affect how the medicine is absorbed.
Will I know if I'm getting the capsule or the tablet first?
Yes, the study is 'randomised,' which means the order you receive the capsule and tablet will be decided by chance, like flipping a coin. The study team will inform you of the schedule.
What happens to the blood samples?
The blood samples are carefully tested in a lab to measure how much escitalopram is present in your body over time. This helps compare how the capsule and tablet work.
How to find out more
Always speak to your GP or specialist before deciding to take part in a study.
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