Degalix 80 Injection

Description of Degalix 80 (Degarelix 80 mg) injection

A component of Degalix 80 injection is Degarelix, an antineoplastic agent categorised as a gonadotropin releasing hormone (GnRH), receptor antagonist. It is mainly prescribed when dealing with prostate cancer that is at an advanced stage. Instead of acting via the antagonism of GnRH receptors on the pituitary gland, Degarelix affects the gland, causing an immediate reduction of the concentration of testosterone in the bloodstream without causing the hormonal surge. This rapid testosterone inhibition is a good way of curbing the disease since the development of prostate cancer is largely dependent on the presence of androgens.

Indications of Degalix 80 (Degarelix 80 mg) injection

Degarelix is contraindicated in case of patients with advanced and hormone-dependent prostate cancer, especially in the case of patients who require the immediate inhibition of testosterone levels.

Mechanism of action of Degalix 80 (Degarelix 80 mg) injection

Degarelix works by blocking the GnRH receptors in the pituitary gland consequently inhibiting the secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). These gonadotropins that normally help in the stimulation of testosterone production in the testes are thus reduced and therefore lead to a swift drop in the amount of testosterone. This consequent androgen deprivation creates a lack of stimulation of prostate cancer cells and hence blocks tumour growth.

How to consume Degalix 80 (Degarelix 80 mg) injection

Degarelix is injected subcutaneously usually in the abdomen. The therapy consists of a loading dose and regular doses of maintenance therapy that are usually taken once a month. The injection need must be done by an experienced health care specialist.

Side Effects of Degalix 80 (Degarelix 80 mg) injection

1. Common side effects

• Injection site pain
• Hot flashes
• Fatigue
• Weight gain
• Increased sweating

2. Serious side effects

• Cardiovascular complications
• Liver dysfunction
• Severe allergic reactions

3. Rare side effects

• QT prolongation
• Severe injection site reactions

Safety Advice for Degalix 80 (Degarelix 80 mg) injection

Degarelix patients should receive frequent endocrine, hepatolithic, and cardiac system monitoring because the given drug interferes significantly with hormonal balance and can affect metabolic and cardiac activity

Breastfeeding: Not applicable, since the drug is recommended in males only, however, women should be exposed to the drug.

Pregnancy: Contraindicated, as it disrupts hormonal pathways required due to the growth of the fetus.

Alcohol: It is recommended to consume small amounts of alcohol since it can increase the level of hepatic stress and worsen fatigue or metabolic changes.

Liver: The patients with hepatic impairment must be observed closely as it can be considered that changed metabolism increases drug exposure and toxicity.

Lungs: Any reported chest pain or dyspnea should be also considered, which can be the indication of cardiovascular complications.

Kidney: Renal function is to be observed, especially in patients already having pre-existing kidney disease but the drug is not mainly excreted through kidneys.

Driving: Some patients can feel fatigued, dizzy, or weak when receiving treatment; therefore, driving should be avoided in case of such complaints.

Interaction of Degalix 80 (Degarelix 80 mg) injection

• Drug–Drug Interaction

Antiarrhythmic drugs (e.g., Amiodarone) × Degarelix
Simultaneous use can have higher risks of QT-interval increase which can trigger severe cardiac arrhythmia; close cardiac observation is needed.

QT-prolonging drugs (e.g., Fluoroquinolones, Antipsychotics) × Degarelix
These drugs can also increase the risk of abnormal cardiac rhythms even when co-administrated particularly in patients with pre-existing cardiac disorders.

Antihypertensive drugs × Degarelix
Degarelix can change the control of blood-pressure levels, which requires dose changes and monitoring in patients under antihypertensive treatment.

Corticosteroids × Degarelix
The possible alteration of metabolism and fluid status predetermines the necessity to monitor the overall state of a patient in detail.

Other hormonal therapies × Degarelix
Combination can cause changes in hormonal balance and affect the effect of treatment.

• Drug–Food Interaction

No great food interaction has been determined due to the subcutaneous mode of administration; nevertheless, nutritious dietary pattern is relevant to regulating weight gain and metabolic adjustments.

• Drug–Disease Interaction of Degalix 80 (Degarelix 80 mg) injection

Cardiovascular disease:
Degarelix could increase the chance of QT-prolongation and other cardiac problems. Patients having pre-existing heart disease need good attention, including ECG, as necessary.

Liver disease:

Due to hepatic metabolism, hepatic impairment may result in more exposure to the drug and the development of toxicity in patients. Periodic hepatic function examinations should be recommended.

Metabolic disorders (ex: diabetes, obesity):

The metabolic changes that can be caused by hormonal suppression include weight gain and glucose metabolism that becomes not synchronized, which therefore requires continuous monitoring.

Osteoporosis:

Extended testosterone suppressions may also decrease bone density which increases the vulnerability to fractures. The patients are to be followed and dealt with as such.

Contraindication of Degalix 80 (Degarelix 80 mg) injection

Degarelix does not work with hypersensitivity to the medication, this means that it should not be used with women or children.

Dosage of Degalix 80 (Degarelix 80 mg) injection

The starting dosage is 240 mg of the drug usually administered in two subcutaneous injections then accompanied by 80 mg of the drug every month as maintenance dosage. A specific regimen is individualized by the physician.

Storage of Degalix 80 (Degarelix 80 mg) injection

Keep in the recommended conditions, avoid exposure to heat, light and keep beyond the reach of children.

Missed Dose of Degalix 80 (Degarelix 80 mg) injection

In case a dose is missed, the dose must be taken as soon as possible. The physician may change the dosing schedule.

Other General Information of Degalix 80 (Degarelix 80 mg) injection

The patients are expected to follow up visits regularly to cheque on the level of hormone and general response to treatment. The symptoms like chest pain, extreme fatigue, or complications in an injection are to be reported instantly.

FAQs of Degalix 80 (Degarelix 80 mg) injection

1. Why does Degarelix have an advantage over GnRH agonists?

Degarelix is a direct GnRH receptor antagonist that decreases testosterone levels quickly with no initial hormone flare up, a benefit in the treatment of more progressive disease.

2. Does Degarelix have an impact on the heart rhythm?

Admittedly, it can increase the QT interval in a certain number of patients and predispose to arrhythmia, which is why it is crucial to monitor the disease.

3. Is Degarelix hormonally side effected?

Indeed, low testosterone levels may trigger hot flushes, lack of energy and weight gain.

4. What is the necessity of the long-term treatment?

Prostate cancer changes require continuous inhibition of testosterone to prevent its development.

5. What is needed in monitoring of treatment?

Hormone tests, liver tests, and heart tests should be regularly performed to protect the efficacy and safety.

Fact Box of Degalix 80 (Degarelix 80 mg) injection

References

• FDA Prescribing Information – Firmagon (Degarelix)
  https://www.accessdata.fda.gov/drugsatfda_docs/label/2023/022201s017lbl.pdf
• European Medicines Agency (EMA) – Firmagon Product Information
  https://www.ema.europa.eu/en/documents/product-information/firmagon-epar-product-information_en.pdf
• DrugBank – Degarelix
  https://go.drugbank.com/drugs/DB06654
• National Cancer Institute (NCI) – Degarelix
  https://www.cancer.gov/about-cancer/treatment/drugs/degarelix