Is your mom, dad, or someone you know increasingly forgetful? Forgetting small things like where your keys are or someone's name can be an early sign of Alzheimer's disease. Although there is still no cure for this serious disease, a new drug that can slow the progression of the disease has been fully approved by the US FDA (Food and Drug Administration). This is really a great hope for patients around the world. So let's talk a little more about this new drug, Leqembi.
What is this new medicine called Leqembi?
The first thing to understand is that this is not a cure for Alzheimer's disease. But it does help. It can slow down the progression of the disease. Research has shown that it can slow the progression of the disease by about 27% over a period of 18 months.
Now you might be thinking, 'Will it really make a difference?' Yes, it definitely will. Just think, someone taking this medication will be able to live 5 months longer without symptoms getting worse than someone not taking the medication, and will be able to do their own work, be happy with their family, go see a grandchild graduate... How valuable is that extra time to do things like this? That time is the biggest benefit of this medication.
But it's important to remember this: Leqembi is only recommended for people in the early stages of Alzheimer's disease , meaning those who are showing mild cognitive impairment. It won't work for someone with more advanced disease.
How does this medicine work?
To understand this, let's take a small example. In the brains of Alzheimer's patients, an unwanted protein called amyloid plaques is deposited. It's like dirt getting stuck in a water pipe and gradually getting stuck in the pipe. Due to the deposition of these proteins, communication between brain cells is disrupted, and the cells gradually start to die. This is why memory is lost and behavior changes.
This drug, called Leqembi, targets and removes amyloid plaques that have built up in the brain. It belongs to a class of drugs called monoclonal antibodies. This drug is usually given to the patient twice a month through an IV infusion.
Let's look at some important facts about this medicine in a table.
| A brief summary of Leqembi (lecanemab) | |
|---|---|
| Type of medicine | A monoclonal antibody type drug. |
| Who is it suitable for? | Only for people in the early stages of Alzheimer's disease, with mild cognitive impairment. |
| Main advantage | The spread of the disease is slowed by about 27% within 18 months. |
| How to give | It is given through a vein (IV infusion) twice a month. |
| The most important limit | This does not cure the disease. It is of no use to those who are already in a severe stage of the disease. |
Is there a risk in using this?
Yes. Like all medications, this one has some risks and side effects. In fact, the FDA has issued a "black box warning" for this drug, which is the highest level of safety warning . The reason for that is a condition called ARIA.
What is ARIA?
ARIA is short for Amyloid-Related Imaging Abnormalities. Simply put, this medication can cause some people to develop brain swelling or tiny bleeding (microbleeds) . While these are usually not serious, they can sometimes be life-threatening.
- APOE4 gene: People with two copies of the APOE4 gene mutation are at higher risk of developing this ARIA condition than others.
- Blood Thinners: Another very important thing is that doctors strongly warn against using this medication for someone who is taking blood thinners. Because if you do, there is a high chance that a small bleed will turn into a large, life-threatening bleed (macro-bleed). Sometimes this can lead to seizures, hospitalization, or even death.
Therefore, before starting this medication, it is essential to clearly discuss all of these risks with your doctor, conduct the necessary tests, and confirm whether this is right for you.
So what should I do?
If you, the reader of this article, have even the slightest suspicion that you or someone close to you has the early signs of Alzheimer's disease, the best thing to do is to see a doctor without delay and get an accurate diagnosis.
Because as we discussed earlier, drugs like Leqembi are only useful in the early stages of the disease. If you delay, you may miss the opportunity for treatment. Also, new drugs like these can usually be expensive. So it's a good idea to talk to your doctor about that before starting treatment.
Experts believe that in the near future, treatments will be available that can detect and prevent disease before people show any symptoms. Just as we can detect and treat breast cancer and prostate cancer early, we will one day be able to detect and prevent Alzheimer's disease early. Until then, drugs like Leqembi offer great hope for all of us.
Take-Home Message
- Leqembi is not a cure for Alzheimer's disease. It only slows down the progression of the disease in its early stages.
- This drug works by removing harmful amyloid plaques that build up in the brain.
- There is a risk of serious side effects such as brain swelling or small hemorrhages (ARIA), so it is essential to discuss all risks with a doctor.
- This medicine is not suitable for those taking blood thinners or those with severe disease.
- If you or someone close to you is experiencing memory problems, seek medical advice without delay. Early diagnosis is essential for treatment.
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