Religox Tablet 120 mg

Religox Tablet 120 mg Uses, Dosage, Side Effects, Food Interaction and all others data.

Religox Tablet 120 mg is a gonadotropin-releasing hormone (GnRH) receptor antagonist used in the treatment of several hormone-responsive conditions. It was first approved in Japan in 2019, under the brand name Relumina, for the symptomatic treatment of uterine fibroids, and more recently by the United States' FDA in 2020, under the brand name Orgovyx, for the treatment of advanced prostate cancer. Religox Tablet 120 mg has also been studied in the symptomatic treatment of endometriosis.

Religox Tablet 120 mg is the first (and currently only) orally-administered GnRH receptor antagonist approved for the treatment of prostate cancer - similar therapies such as degarelix require subcutaneous administration - and therefore provides a less burdensome therapeutic option for patients who might otherwise require clinic visits for administration by healthcare professionals. In addition to its relative ease-of-use, relugolix was shown to be superior in the depression of testosterone levels when compared to leuprolide, another androgen deprivation therapy used in the treatment of prostate cancer. In May 2021, the FDA approved the combination product made up of relugolix, estradiol, and norethindrone under the market name Myfembree for the first once-daily treatment for the management of heavy menstrual bleeding associated with uterine fibroids in premenopausal women.

Approximately 56% of patients achieved castrate-level testosterone concentrations (9 Religox Tablet 120 mg requires once-daily oral administration to maintain the desired testosterone concentrations.

Trade Name Religox Tablet 120 mg
Availability Prescription only
Generic Relugolix
Relugolix Other Names Relugolix
Related Drugs estradiol, Premarin, Xtandi, Casodex, Zytiga, Lynparza
Weight 120 mg
Type Tablet
Formula C29H27F2N7O5S
Weight Average: 623.64
Monoisotopic: 623.176244497
Protein binding

Relugolix is 68-71% protein-bound in plasma, primarily to albumin and, to a lesser extent, α1-acid glycoprotein.

Groups Approved, Investigational
Therapeutic Class
Manufacturer ACI Limited
Available Country Bangladesh
Last Updated: October 19, 2023 at 6:27 am
Religox Tablet 120 mg
Religox Tablet 120 mg

Uses

Religox Tablet 120 mg is an oral GnRH receptor antagonist for androgen deprivation therapy in the treatment of advanced prostate cancer.

Religox Tablet 120 mg is indicated for the treatment of adult patients with advanced prostate cancer. In a combination product with estradiol and norethindrone, relugolix is indicated for the once-daily treatment for the management of heavy menstrual bleeding associated with uterine fibroids in premenopausal women.

Religox Tablet 120 mg is also used to associated treatment for these conditions: Advanced Prostate Cancer, Heavy Menstrual Bleeding

How Religox Tablet 120 mg works

The pathogenesis and progression of prostate cancer appear driven, at least in part, by the effects of testosterone. Androgen deprivation has been demonstrated to result in cell death and tumor regression in many well-differentiated prostate cancer cell lines - for this reason, androgen deprivation therapy (ADT) has become a standard in the treatment of prostate cancer, particularly in advanced disease.

Testosterone production in males is carried out in the Leydig cells of testes and is stimulated by luteinizing hormone (LH), which itself is produced in the pituitary gland following the binding of gonadotropin-releasing hormone (GnRH) to corresponding GnRH receptors. Religox Tablet 120 mg is a competitive antagonist of these GnRH receptors, thereby decreasing the release of LH and, ultimately, testosterone.

Toxicity

Data regarding overdose of relugolix are unavailable.

Food Interaction

  • Take with or without food. Administration with food does not result in any clinically meaningful differences in pharmacokinetics.

Religox Tablet 120 mg Disease Interaction

Major: osteoporosisModerate: QT prolongation

Elimination Route

The Cmax and AUC of orally-administered relugolix increase proportionally following single doses - in contrast, with repeat dosing the AUC remains proportional to the dose while the Cmax increases greater than proportionally to the dose. Following the administration of 120mg once daily, the steady-state AUC and Cmax of relugolix were 407 (± 168) ng.hr/mL and 70 (± 65) ng/mL, respectively.

The absolute oral bioavailability of relugolix is approximately 12% and the median Tmax following oral administration is 2.25 hours.

Half Life

The average effective half-life of relugolix is 25 hours, while the average terminal elimination half-life is 60.8 hours.

Clearance

The average renal clearance of relugolix is 8 L/h with a total clearance of 26.4 L/h.

Elimination Route

Approximately 81% of an orally administered dose was recovered in the feces, of which 4.2% was unchanged parent drug, while 4.1% of the dose was recovered in the urine, of which 2.2% remained unchanged.

Innovators Monograph

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