Question 1

What is Imfinzi?

Accepted Answer

Imfinzi is a monoclonal antibody that belongs to a class of drugs known as immune checkpoint inhibitors. It works by targeting and blocking a specific protein called PD-L1, which is often found on the surface of some cancer cells and immune cells.

By blocking this protein, the medication prevents cancer cells from hiding from the immune system. This allows the body's natural defenses to more effectively recognize, target, and attack the cancer cells.

Question 2

What is Imfinzi used for?

Accepted Answer

Imfinzi is used to treat:

non-small cell lung cancer

small cell lung cancer

biliary tract cancer

Question 3

How does Imfinzi work?

Accepted Answer

Immune System Activation

Imfinzi belongs to a class of drugs known as monoclonal antibodies, specifically immune checkpoint inhibitors. Its primary function is to block a specific protein called programmed death-ligand 1 (PD-L1).

The Role of PD-L1

In a healthy body, the immune system uses "checkpoints" to prevent it from attacking normal cells. Some cancer cells produce high amounts of the PD-L1 protein to exploit these checkpoints. When PD-L1 binds to certain receptors on T-cells (a type of white blood cell), it sends a signal that tells the immune system to leave the cancer cell alone. This allows the tumor to grow and spread undetected.

How Imfinzi Works

Imfinzi works by attaching itself to the PD-L1 protein on the surface of cancer cells and some immune cells. By doing this, it prevents PD-L1 from interacting with the receptors on T-cells. This action effectively:

Removes the "mask" that cancer cells use to hide from the immune system.

Reactivates T-cells , allowing them to identify the cancer cells as a threat.

Triggers an immune response where the body's own defenses begin to attack and destroy the tumor cells.

Because Imfinzi works by stimulating the immune system, it may also cause the immune system to attack normal, healthy tissues in any part of the body.

Question 4

What are the active ingredients in Imfinzi?

Accepted Answer

The active ingredient in Imfinzi is durvalumab .

Question 5

What are the side effects of Imfinzi?

Accepted Answer

Common side effects of Imfinzi may include:

fatigue

cough

nausea

and others

Always consult with a healthcare professional about potential side effects.

Question 6

What drug class is Imfinzi?

Accepted Answer

Imfinzi belongs to the PD-L1 inhibitor drug class.

Question 7

What is the dosage of Imfinzi and how do I take it?

Accepted Answer

Administration Method

Imfinzi is given as a liquid solution injected into a vein through an intravenous (IV) line. This procedure is performed by a doctor or nurse in a hospital or specialized clinic. Each infusion session typically lasts about 60 minutes.

Treatment Schedule

The frequency of infusions depends on the specific type of cancer being treated and the patient's overall health. Common schedules include receiving the medication:

Once every 2 weeks

Once every 3 weeks

Once every 4 weeks

In some cases, Imfinzi is given in combination with chemotherapy for a set number of cycles before being used on its own as a maintenance therapy. Your healthcare provider will determine the appropriate schedule and duration of treatment based on how your body responds to the medication.

Missed Appointments

Because this medication is administered by a healthcare provider, it is important to keep all scheduled appointments. If an appointment is missed, patients should contact their healthcare provider as soon as possible to reschedule the infusion.

Question 8

Is Imfinzi safe during pregnancy and breastfeeding?

Accepted Answer

Pregnancy

Imfinzi can cause harm to an unborn baby. Healthcare providers typically perform a pregnancy test before starting treatment to ensure the patient is not pregnant. It is important to discuss pregnancy status or plans for pregnancy with a healthcare provider.

Contraception

Individuals who can become pregnant are advised to use effective birth control during treatment and for at least 3 months after the final dose of Imfinzi.

Breastfeeding

It is unknown if Imfinzi passes into breast milk. Due to the potential for serious side effects in a nursing child, breastfeeding is not recommended during treatment and for 3 months after the last dose.

Question 9

What forms and strengths does Imfinzi come in?

Accepted Answer

Imfinzi is supplied as a sterile, preservative-free solution for intravenous use. It is available in the following form:

Intravenous Injection: A clear to opalescent, colorless to slightly yellow solution provided in single-dose vials.

This medication is administered as an infusion into a vein by a healthcare provider in a clinical setting.

Question 10

What is the FDA approval status of Imfinzi?

Accepted Answer

FDA Approval Status

Imfinzi was first approved by the U.S. Food and Drug Administration (FDA) in 2017. It is a programmed death-ligand 1 (PD-L1) blocking antibody that helps the immune system attack cancer cells.

Approved Indications

The FDA has granted approval for Imfinzi to treat several specific conditions:

Lung Cancer: It is approved for adults with unresectable Stage III non-small cell lung cancer (NSCLC) after chemoradiotherapy. It is also used for both limited-stage and extensive-stage small cell lung cancer (SCLC).

Biliary Tract Cancer: Imfinzi is approved for use in combination with chemotherapy for adults with locally advanced or metastatic biliary tract cancer.

Liver Cancer: It is approved in combination with tremelimumab for the treatment of adults with unresectable hepatocellular carcinoma.

Bladder Cancer: It is approved for use with chemotherapy as a treatment before and after surgery for adults with muscle-invasive bladder cancer (MIBC).

Gastric and Gastroesophageal Junction Cancer: It is approved for use with chemotherapy for adults with resectable gastric or gastroesophageal junction (GEJ) adenocarcinoma.

Regulatory Requirements

There are currently no boxed warnings or Risk Evaluation and Mitigation Strategies (REMS) associated with Imfinzi. The FDA continues to monitor the drug for immune-mediated adverse reactions, which occur when the immune system attacks healthy tissues or organs during treatment.

Question 11

What should I know about Imfinzi and cost?

Accepted Answer

Factors Influencing Cost

Several factors determine the total cost of treatment with Imfinzi, including:

Insurance Coverage: Your specific health insurance plan, including deductibles, copayments, and coinsurance, will play a major role in your out-of-pocket expenses.

Treatment Setting: Because Imfinzi is administered as an intravenous (IV) infusion by a healthcare professional, you may incur costs for the office visit and the administration procedure in addition to the drug itself.

Dosage and Frequency: The amount of medication you receive and how often you receive it depends on the type of cancer being treated and your body weight.

Generic and Biosimilar Availability

Imfinzi is a brand-name biologic medication. Currently, there are no biosimilar or generic versions of durvalumab available, which typically means the cost remains higher than for drugs with generic alternatives.

Financial Assistance Programs

The manufacturer may offer patient assistance programs or co-pay cards to help eligible individuals manage the cost of the medication. Patients are encouraged to speak with their healthcare provider or insurance company to explore available financial support options.

Imfinzi

Medication Quick Facts

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What It's Used For

How It Works

Side Effects

Warnings & Precautions

Dosage & How to Take

Pregnancy & Breastfeeding

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FDA / Regulatory Status

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