Pegcetacoplan - Dosage, Indications, and Side Effects

Introduction:

Pegcetacoplan is a special medicine that doctors give to people who are slowly losing their central eyesight as they get older. This eye problem is called geographic atrophy, and it’s a type of dry age-related macular degeneration (AMD). It happens when tiny parts in the back of the eye get damaged, making it hard to see clearly.

Has the FDA Approved Pegcetacoplan for Dry AMD?

On February 17, 2023, a group called the FDA, or Food and Drug Administration, approved Pegcetacoplan to treat this eye problem. That means it’s safe for doctors to use! The medicine can’t bring back lost vision, but it slows down the damage, so people can keep seeing better for longer. Thanks to Pegcetacoplan, people with dry AMD can keep enjoying reading, watching TV, and seeing the faces they love.

Drug Group

Pegcetacoplan is a complement inhibitor medicine used to treat geographic atrophy (GA), a serious eye condition that happens in some people with age-related macular degeneration (AMD). It works by slowing down damage to the eye caused by an overactive part of the immune system called the complement system. This helps protect vision and may slow down vision loss.

Indications

Pegcetacoplan is a medicine used to help people who have a certain eye problem called geographic atrophy (GA). This problem happens because of another eye disease called age-related macular degeneration (AMD), which can make it hard for people to see clearly. Pegcetacoplan helps treat this problem in the eye.

Dosage Forms and Available Strengths

Pegcetacoplan is provided as an injection with a strength of 150 mg/mL (milligrams per milliliters). It is administered as a single-dose injection.

Warnings and Precautions

• Eye Infections and Problems (Endophthalmitis and Retinal Detachments): Sometimes, getting an injection in the eye (like Pegcetacoplan) can cause serious eye infections or the retina (a part inside the eye) can come loose. To help keep this from happening, doctors must be very clean and careful when giving the shot. If you notice any sudden eye pain, redness, blurry vision, or flashing lights, tell your doctor right away.

• Blood Vessel Problems in the Eye (Retinal Vasculitis and/or Retinal Vascular Occlusion): Some people using Pegcetacoplan can get swelling or blockages in the blood vessels inside the eye. This can happen even after the first shot and can cause serious vision problems. If your vision changes suddenly, tell your doctor immediately. If this happens, the doctor will stop giving Pegcetacoplan.

• Wet AMD Risk (Neovascular AMD): Pegcetacoplan can sometimes cause another eye problem called “wet AMD” to happen more often. Doctors will watch for this carefully. If you need a different anti-VEGF medicine (vascular endothelial growth factor), it will be given separately from Pegcetacoplan.

• Eye Inflammation (Intraocular Inflammation): Pegcetacoplan can cause the inside of the eye to get swollen or inflamed. After the swelling goes away, the doctor might decide to start Pegcetacoplan again.

• Pressure in the Eye (Increased Intraocular Pressure): After getting a shot in the eye, the pressure inside the eye can go up quickly. Doctors will check your eye pressure and treat it if needed.

For Patients

How Pegcetacoplan Works and Why It Is Used?

Pegcetacoplan is a medicine used to help slow down vision loss in people with dry AMD (age-related macular degeneration), specifically a form called geographic atrophy. In dry AMD, a part of the immune system called the complement system can become overactive and mistakenly damage the retina, the part of the eye that helps you see clearly. Pegcetacoplan works by blocking this overactive part of the immune system, helping to reduce further damage to the retina. This can help slow the progression of the disease and preserve vision for longer.

Who Can Use Pegcetacoplan?

Pegcetacoplan is a medicine doctors use to help with two main problems. FDA-approved treatment of Pegcetacoplan is:

• Eye Disease (AMD with GA): Pegcetacoplan helps people who have an eye problem called geographic atrophy (GA), which is part of a bigger eye disease called age-related macular degeneration (AMD). This disease can make it hard to see, and the medicine helps slow it down.

• Blood Disease (PNH): It also helps people with a rare blood disease called paroxysmal nocturnal hemoglobinuria (PNH). This disease can cause the body to break down red blood cells too quickly. The medicine helps protect those cells.

So, Pegcetacoplan is used to help keep the eyes and blood healthier!

How Is Pegcetacoplan Administered?

Patient Selection: Doctors look for patients with geographic atrophy (GA), a more serious stage of dry AMD. It’s for people who are losing central vision but don’t have wet AMD.

• Pegcetacoplan is a medicine given as a shot in the eye by a trained eye doctor.

• The shot is given once every 25 to 60 days.

• The doctor uses a tiny needle and special tools to keep everything clean and safe.

• The medicine is stored cold and must be warmed up a little before the shot.

• Doctors make sure there are no bubbles in the syringe and give just the right amount.

• After the shot, the doctor checks the eye to make sure everything is okay.

• Each bottle of Pegcetacoplan is used for only one eye.

Note: Pegcetacoplan can be very costly, but many insurance plans or assistance programs can help cover the cost.

What Are the Side Effects of Pegcetacoplan?

Some of the side effects of Pegcetacoplan include:

• Eye pain.

• Irritation or discomfort in the eyes.

• Redness.

• Bloody eye.

• Headache.

• Blurred vision.

• Inflammation of the cornea.

• Dark spots in the center of the vision.

• Tearing.

• Flashes of light.

• Floating spots before the eyes.

• Sensitivity to light.

Mild side effects are usually temporary and resolve within a few days, while certain serious side effects may occur, which require immediate medical assistance. These include:

• Severe allergic reactions.

• Bacterial or fungal infections of the eyes.

• Inflammation or blockage of retinal blood vessels.

• Swelling inside the eyes.

• Detached retina.

• Wet age-related macular degeneration.

• Increased pressure in the eyes.

What Are the Things to Inform the Doctor Before Taking Pegcetacoplan?

• Patients must inform the doctor if they are allergic or have experienced unusual reactions to medications, including Pegcetacoplan or its components.

• Before taking a Pegcetacoplan injection, patients must inform the doctor if they have eye pain, active eye swelling, or ever had any eye disorders, such as glaucoma (an eye disease that damages the optic nerve), flashes of light, specks floating in the vision, increased eye pressure, blurred vision, or any other medical conditions.

• Before starting the treatment with Pegcetacoplan, patients must tell the doctor if they take any vitamins, nutritional supplements, herbal medicines, over-the-counter (OTC) drugs, or any other medications.

• Female patients must inform the doctor if they are pregnant, planning pregnancy, or breastfeeding before starting the treatment with Pegcetacoplan. An effective birth control method is recommended during the treatment with Pegcetacoplan and for at least 40 days following the administration of the last dose.

Dietary Considerations

No dietary considerations are required during the treatment with Pegcetacoplan unless instructed by the prescribing doctor.

Missed Dose

It is unlikely to miss a dose as it is administered in the hospital setting.

Overdose

Pegcetacoplan should only be given by trained healthcare professionals, so overdose is rare. But if it happens, the person should get medical care right away.

Storage and Handling

Pegcetacoplan vials are stored in their original containers and refrigerated between 2 and 8 degrees Celsius (36 and 46 degrees Fahrenheit) to protect them from direct light exposure. The vials must not be shaken, and they must be kept at room temperature for at least 15 minutes prior to administration. They must not be used if the product is damaged, the solution appears discolored or cloudy, or if particulate matter is noticed.

For Doctors

What Are the Pharmacological Actions of Pegcetacoplan?

Pharmacodynamics: Pegcetacoplan is a prescription medicine, a type of drug called a complement inhibitor. This medicine is used to treat a serious eye condition called geographic atrophy (GA), which is linked to age-related macular degeneration (AMD). It helps slow down the damage to the part of the eye responsible for sharp, central vision. Pegcetacoplan is made of two identical protein pieces joined to a molecule called polyethylene glycol (PEG). This design helps the medicine work better and stay in the body longer.

Mechanism of Action in AMD Treatment: Pegcetacoplan works by blocking a protein called C3 in the immune system. In people with GA, C3 becomes overactive and begins to harm healthy parts of the eye. By stopping C3, pegcetacoplan helps protect the eye and slows down vision loss.

Pharmacokinetics: What Is It?

• Absorption: After the medicine is injected into the eye, it slowly enters the bloodstream. It takes about 7 to 14 days to reach peak levels in the body.

• Distribution: The medicine mostly stays in the eye, where it is needed. A small amount travels through the rest of the body.

• Elimination: The body breaks down pegcetacoplan into smaller parts and removes it over a few days. Its half-life (how long it takes to reduce by half) is about 4.5 days.

• Effect of Age or Health: The way the body handles this medicine does not change much based on age, gender, kidney, or liver function.

Non-Clinical Toxicity:

Pegcetacoplan has not been studied for cancer risk in animals. Lab tests showed it does not damage genes or cause mutations. There is no information on whether it affects fertility in people, but animal studies did not show any harm to reproductive organs.

Clinical Studies:

Clinical trials of Pegcetacoplan:

Pegcetacoplan was studied in two large clinical trials, called OAKS and DERBY, to see if it could help slow down a disease called geographic atrophy (GA), which is a type of advanced age-related macular degeneration (AMD). A total of 1,258 patients, aged 60 to 100, took part in these studies. Some received Pegcetacoplan injections either monthly or every other month, and others received a “sham” treatment that acted as a placebo.

Both studies lasted 24 months, and the results showed that Pegcetacoplan helped slow the growth of GA areas in the eye compared to the sham treatment. In the OAKS study, patients who got Pegcetacoplan every month had a 21.9 % slower disease growth, and those treated every other month had an 18.1 % slower growth. In the DERBY study, the monthly group had an 18.1 % slower growth, while the every-other-month group had a 17.4 % slower growth. This means that Pegcetacoplan helped reduce the damage caused by GA over time.

What Is the Efficacy of Pegcetacoplan?

Pegcetacoplan is effective in slowing down the progression of geographic atrophy (GA), a severe form of dry age-related macular degeneration (AMD). Clinical studies showed that patients receiving monthly or every-other-month injections had significantly slower growth of retinal damage compared to those who didn’t get the treatment. While it doesn't restore lost vision, pegcetacoplan helps preserve existing vision for longer, especially with consistent use over time. Benefits are typically seen after 6 to 12 months of treatment.

What Are the Contraindications of Pegcetacoplan?

• Eye or Surrounding Infections: Pegcetacoplan should not be used in patients who have infections in or around the eye.

• Active Eye Inflammation: Pegcetacoplan should not be used if there is active inflammation inside the eye.

• Allergic Reactions: Pegcetacoplan should not be used by patients who are allergic to pegcetacoplan or any other ingredients in Pegcetacoplan. Some patients have had serious allergic reactions like rash, hives, or even life-threatening reactions after using Pegcetacoplan.

What Are the Drug Interactions of Pegcetacoplan?

Here are some specific drugs known to interact with Pegcetacoplan:

• Fingolimod.

• Ponesimod.

• Abatacept.

• Adalimumab.

• Aldesleukin.

• Alefacept.

These drugs, mostly immunosuppressants or biologics, can increase the risk of infections when taken with Pegcetacoplan.

Use in Specific Populations

• Pregnancy: There are no well-controlled studies of Pegcetacoplan in pregnant women. Use during pregnancy should be based on the risks and benefits. After eye injection, very little of the drug reaches the rest of the body. In animal studies, high doses caused more miscarriages and stillbirths in pregnant monkeys, but only at levels far higher than what humans receive. Lower doses did not show harmful effects.

• Breastfeeding: It’s unknown if Pegcetacoplan gets into human breast milk or affects nursing babies. In animal studies, very small amounts were found in milk, but none in the baby’s blood. Use with caution when breastfeeding.

• Females of Reproductive Age: Women should use effective birth control during Pegcetacoplan treatment and for 40 days after the last dose. If planning a pregnancy, discuss the risks and benefits with a doctor.

• Children: Pegcetacoplan has not been studied in children, and its safety and effectiveness in this group are unknown.

• Older Adults: Most patients in studies were 65 or older, and many were over 75. No major safety or effectiveness differences were seen with age. No dosage change is needed for older adults.

Key Takeaway/ Note from iCliniq

Pegcetacoplan is a new medicine that helps protect the eyes of people with dry AMD, a disease that can slowly take away your sharp, clear vision. It works by calming down part of the body that may hurt the eye by mistake. This helps slow down the damage so people can see better for longer. This helpful information comes from iCliniq.com, a trusted website where real doctors give expert advice online.