Everything about the Onasemnogene Abeparvovec vaccine for Spinal Muscular Atrophy (SMA) in simple terms

You must have been shocked when the doctor told you that your little one has a condition called Spinal Muscular Atrophy (SMA). It is a very sensitive subject. But now medical science has advanced a lot. New, very effective ways have been found to treat such conditions. Onasemnogene Abeparvovec is one such highly advanced, one-time gene therapy. It is very well known by the brand name Zolgensma. So today, let's talk about this medicine, its action, things to be careful about, and side effects in a simple way that you can understand.

What kind of medicine is this? What exactly is happening?

Simply put, Onasemnogene Abeparvovec is a drug that treats a condition called Spinal Muscular Atrophy (SMA) . SMA is a genetic disease that causes the muscles in our body to gradually weaken and waste away. This is caused by a defect in a gene that produces a protein that is essential for keeping muscles healthy.

What this medicine does is replace the defective gene with a healthy copy of the gene that can produce that protein correctly. This is called gene therapy . When this healthy gene enters the body, it starts producing the essential protein. This stops the muscles from weakening further and the symptoms from getting worse are controlled.

Things to tell your doctor before taking this medicine

Because this is a very specific treatment, it is very important to give the medical team a complete description of your child's health condition. Before starting treatment, be sure to tell the doctor about these things in particular:

• Current infection: If the child has an infection such as fever, cold, or cough.
• Liver disease: If you have any liver disease.
• Dehydration: If there is a lack of water in the body.
• Allergies: If you have allergies to this medicine or any other medicine or food.
• Pregnancy or breastfeeding: This treatment is usually given to young children, so this is not relevant, but it is important to be aware of this if it is being given to a young person in any way.

How is the medicine given?

This is not a home remedy. It is given in a hospital or specialized clinic, under the full supervision of a medical team consisting of doctors and nurses.

This is an intravenous infusion. It is given into a vein, like saline, over a period of about an hour. This treatment can even be given to newborns. However, it requires special precautions and constant monitoring.

What to do if you overdose?

Since this is administered by a medical team in a hospital, there is little chance of an overdose. However, if you suspect that something has happened, inform the medical team immediately. Otherwise, call the National Poisons Information Centre at the Colombo National Hospital . Or take the child to the Emergency Treatment Unit (ETU) of the nearest hospital.

Things to consider during and after treatment

After receiving this treatment, there are a few things to be especially careful about.

Constant medical supervision

After treatment, the child's condition will be monitored by doctors regularly. Blood tests may be done regularly to check things like liver function.

Risk of infection

This medicine may have some effect on the body's immune system, which increases the risk of infection.

• If you develop symptoms such as fever, chills, cough, or sore throat, call your doctor immediately.
• Don't give medicine as you please.
• Keep your child as far away from people who are sick as possible.

Preventing the spread of bodily fluids to others (very important!)

This is the most important thing you need to pay attention to during this treatment. After the gene therapy is given, the child's body fluids (such as saliva, urine, and feces) may contain traces of the treatment for about a month . You need to prevent these from accidentally entering someone else's body.

• Hand washing: Wash your hands thoroughly with soap and water whenever you come into contact with your child's body fluids, especially after changing diapers.
• Use gloves: If possible, wear disposable gloves when changing your baby's diaper.
• Disposing of nappies and waste: Place the baby's dirty, urine-stained nappies and other items in a well-sealed plastic bag and dispose of them with the regular trash.

Other points

• Bleeding risk: Even a minor injury may cause increased bleeding during this time. So use a very soft toothbrush when brushing your teeth. If you see a dentist, be sure to tell them that your child has had this treatment.
• Risk of Tumors: There is a very small risk of tumors developing in the body due to this medicine. Most of these are not cancerous (benign). However, if you notice a new tumor or lump anywhere on your child's body, tell your doctor right away.

What are the side effects?

As with any medication, this treatment can have side effects. Some are serious, some are common. It's important to be aware of these.

This list does not include all possible side effects. In addition, if you notice anything unusual or unusual about your child, talk to your doctor about that as well.