Question 1

What is Enzalutamide?

Accepted Answer

Enzalutamide is an androgen receptor inhibitor. It works by blocking the action of androgens, which are hormones that can stimulate the growth of cancer cells.

By preventing these hormones from binding to receptors, the medication helps slow the progression and spread of the disease.

Question 2

What is Enzalutamide used for?

Accepted Answer

Enzalutamide is used to treat:

metastatic castration-resistant prostate cancer

nonmetastatic castration-resistant prostate cancer

metastatic castration-sensitive prostate cancer

Question 3

How does Enzalutamide work?

Accepted Answer

Mechanism of Action

Prostate cancer cells often depend on male hormones, known as androgens (such as testosterone), to grow and multiply. Enzalutamide is classified as an androgen receptor inhibitor, which means it interferes with how these hormones interact with cancer cells.

The medication works by targeting the androgen signaling pathway in several specific ways:

Blocking Attachment: It prevents androgens from binding to receptors on the cancer cells.

Preventing Movement: It stops the androgen receptors from moving into the cell nucleus, where genetic information is stored.

Inhibiting DNA Interaction: It prevents the receptors from binding with the cell DNA.

By disrupting these processes, enzalutamide cuts off the signals that tell prostate cancer cells to grow. This can help shrink tumors or slow the progression of the disease.

Question 4

What are the brand names for Enzalutamide?

Accepted Answer

Enzalutamide is sold under the brand name Xtandi .

Question 5

What are the active ingredients in Enzalutamide?

Accepted Answer

The active ingredient in Enzalutamide is enzalutamide .

Question 6

What are the side effects of Enzalutamide?

Accepted Answer

Common side effects of Enzalutamide may include:

fatigue

hot flashes

muscle pain

and others

Always consult with a healthcare professional about potential side effects.

Question 7

What drug class is Enzalutamide?

Accepted Answer

Enzalutamide belongs to the androgen receptor inhibitor drug class.

Question 8

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

Accepted Answer

How to Take Enzalutamide

Enzalutamide is available as a capsule or tablet to be taken by mouth. It is generally taken once per day. You can take this medication with or without food, but it should be taken at the same time every day to ensure consistent levels in your system.

When taking this medication, keep the following in mind:

Swallow the capsules or tablets whole.

Do not crush, chew, break, or dissolve the medication before swallowing.

Missed Dose

If you miss a dose, take it as soon as you remember on the same day. If you do not realize you missed the dose until the following day, skip the missed dose entirely and return to your regular schedule. Do not take more than your prescribed daily dose at one time.

Question 9

Is Enzalutamide safe during pregnancy and breastfeeding?

Accepted Answer

Pregnancy Risks

Enzalutamide is not indicated for use in women. Research suggests that exposure to the drug during pregnancy can cause birth defects or the death of an unborn baby. Because the medication can be passed through semen, it is important to prevent exposure to female partners who are pregnant or may become pregnant.

Contraception Requirements

Men with female partners of reproductive potential should follow these precautions:

Use a condom and another effective form of birth control during treatment.

Continue using these methods for 3 months after the last dose of enzalutamide.

If a partner becomes pregnant while the man is taking this medication, a healthcare provider should be notified immediately.

Breastfeeding

It is not known whether enzalutamide passes into breast milk or how it might affect a nursing infant. Since the drug is not approved for use in women, breastfeeding is not recommended while taking this medication.

Question 10

What forms and strengths does Enzalutamide come in?

Accepted Answer

Enzalutamide is provided as a solid medication for oral use. It is available in the following formats:

Oral capsules

Oral tablets

Patients should swallow the capsules or tablets whole. The medication should not be chewed, crushed, or opened before swallowing. It can be taken with or without food.

Question 11

What is the FDA approval status of Enzalutamide?

Accepted Answer

FDA Approval History

The U.S. Food and Drug Administration (FDA) first approved enzalutamide in August 2012. Its initial indication was for the treatment of patients with metastatic castration-resistant prostate cancer who had previously received docetaxel chemotherapy. Over the following decade, the FDA expanded the approved uses to include patients who had not yet received chemotherapy and those with earlier stages of the disease.

Current Approved Indications

Enzalutamide is currently FDA-approved for the treatment of adult patients with:

Castration-resistant prostate cancer (CRPC).

Metastatic castration-sensitive prostate cancer (mCSPC).

Non-metastatic castration-sensitive prostate cancer (nmCSPC) with high-risk biochemical recurrence (BCR).

Regulatory Safety Information

The FDA monitors the safety profile of enzalutamide through the FDA Adverse Event Reporting System (FAERS). In 2020, the FDA identified a potential signal of serious risk regarding ischemic heart disease associated with the use of this medication. Regulatory authorities use this information to determine if further action, such as updating the product labeling, is required.

As of the most recent updates, enzalutamide does not have a boxed warning, which is the FDA’s most serious type of warning. There is also no Risk Evaluation and Mitigation Strategy (REMS) program required for its distribution.

Question 12

What should I know about Enzalutamide and cost?

Accepted Answer

Insurance and Out-of-Pocket Costs

Enzalutamide is a specialty medication, and its cost is largely determined by the type of insurance coverage a patient has. Most Medicare Part D and commercial insurance plans include enzalutamide on their formularies, though it is often placed in a high-cost specialty tier. This means patients may be responsible for a significant coinsurance or copayment amount.

Financial Assistance Programs

Because of the high cost of treatment, there are several resources available to help manage expenses:

Manufacturer Assistance: The drug manufacturer may offer co-pay cards for patients with commercial insurance to reduce out-of-pocket costs.

Patient Assistance Programs: For patients without insurance or those who are underinsured, programs may provide the medication at little or no cost based on financial need.

Charitable Foundations: Independent organizations sometimes offer grants to help patients cover the costs of prostate cancer medications.

It is important to work with a healthcare provider or a specialty pharmacy to explore these options. Specialty pharmacies often have dedicated staff to help navigate insurance approvals and identify financial aid opportunities.

Enzalutamide

Medication Quick Facts

📋Overview

What It's Used For

How It Works

Brand Names

Side Effects

Warnings & Precautions

Dosage & How to Take

Pregnancy & Breastfeeding

Forms & Strengths

FDA / Regulatory Status

Price Information

FAQ

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