Triptorelin Pamoate
Generic Name: triptorelin pamoate
Brand Names:
Trelstar
11 DESCRIPTION TRELSTAR is a white to slightly yellow lyophilized cake. When reconstituted, TRELSTAR has a milky appearance. It contains a pamoate salt of triptorelin, a synthetic decapeptide agonist analog of gonadotropin releasing hormone (GnRH). The chemical name of triptorelin pamoate is 5-oxo-L-prolyl-L-histidyl-L-tryptophyl-L-seryl-L-tyrosyl-D-tryptophyl-L-leucyl-L-arginyl-L-prolylglycine amide (pamoate salt).
Overview
11 DESCRIPTION TRELSTAR is a white to slightly yellow lyophilized cake. When reconstituted, TRELSTAR has a milky appearance. It contains a pamoate salt of triptorelin, a synthetic decapeptide agonist analog of gonadotropin releasing hormone (GnRH). The chemical name of triptorelin pamoate is 5-oxo-L-prolyl-L-histidyl-L-tryptophyl-L-seryl-L-tyrosyl-D-tryptophyl-L-leucyl-L-arginyl-L-prolylglycine amide (pamoate salt).
Uses
1 INDICATIONS AND USAGE TRELSTAR is indicated for the treatment of advanced prostate cancer [ see Clinical Studies (14) ]. TRELSTAR is a gonadotropin releasing hormone (GnRH) agonist indicated for the treatment of advanced prostate cancer. ( 1 )
Dosage
2 DOSAGE AND ADMINISTRATION TRELSTAR is administered as a single intramuscular injection in either buttock. Due to different release characteristics, the dosage strengths are not additive and must be selected based upon the desired dosing schedule. ( 2.1 ) 3.75 mg every 4 weeks. ( 2.1 ) 11.25 mg every 12 weeks. ( 2.1 ) 22.5 mg every 24 weeks. ( 2.1 ) Trelstar injection kit 2.1 Dosing Information TRELSTAR must be administered under the supervision of a physician. TRELSTAR is administered by a single intramuscular injection in either buttock. Dosing schedule depends on the product strength selected (Table 1). The lyophilized microgranules are to be reconstituted in sterile water . No other diluent should be used. Table 1.
Side Effects
6 ADVERSE REACTIONS The following is discussed in more detail in other sections of the labeling: Hypersensitivity Reactions [ see Warnings and Precautions ( 5.1 ) ] Tumor Flare [ see Warnings and Precautions ( 5.2 ) ]. Metabolic Syndrome [ see Warnings and Precautions ( 5.3 ) ] Cardiovascular Diseases [ see Warnings and Precautions ( 5.4 ) ]. Convulsions [ see Warnings and Precautions ( 5.5 ) ]. Severe Cutaneous Adverse Reactions [ see Warnings and Precautions ( 5.6 ) ]. Effect of QT/QTc Interval [ see Warnings and Precautions ( 5.7 ) ]. 3.75 mg: The most common adverse reactions (≥ 5%) during TRELSTAR 3.75 mg therapy included hot flushes, skeletal pain, impotence, and headache.
Interactions
7 DRUG INTERACTIONS No drug-drug interaction studies involving TRELSTAR have been conducted. Human pharmacokinetic data with triptorelin suggest that C-terminal fragments produced by tissue degradation are either degraded completely within tissues, are rapidly degraded further in plasma, or cleared by the kidneys. Therefore, hepatic microsomal enzymes are unlikely to be involved in triptorelin metabolism. However, in the absence of relevant data and as a precaution, hyperprolactinemic drugs should not be used concomitantly with TRELSTAR since hyperprolactinemia reduces the number of pituitary GnRH receptors.
Warnings
5 WARNINGS AND PRECAUTIONS Hypersensitivity: Anaphylactic shock, hypersensitivity, and angioedema have been reported. In the event of a reaction, discontinue TRELSTAR and initiate appropriate medical management. ( 5.1 ) Tumor Flare: Transient increase in serum testosterone levels can occur within the first few weeks of treatment. This may worsen prostate cancer and result in spinal cord compression and urinary tract obstruction. Monitor patients at risk and manage as appropriate. ( 5.2 ) Metabolic Syndrome: The use of GnRH agonists may lead to an increased risk of metabolic changes such as hyperglycemia, diabetes, hyperlipidemia, and non-alcoholic fatty liver disease. 4 CONTRAINDICATIONS Known hypersensitivity to triptorelin or any other component of the product, or other GnRH agonists or GnRH. ( 4 ) 4.1 Hypersensitivity TRELSTAR is contraindicated in individuals with a known hypersensitivity to triptorelin or any other component of the product, or other GnRH agonists or GnRH [ see Warnings and Precautions (5.1) ].
Pregnancy
8.1 Pregnancy Risk Summary Based on findings in animal studies and mechanism of action, TRELSTAR can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . Expected hormonal changes that occur with TRELSTAR treatment increase the risk for pregnancy loss.
Storage
16 HOW SUPPLIED/STORAGE AND HANDLING TRELSTAR (triptorelin pamoate for injectable suspension) is supplied as a single dose vial with a Flip-Off cap containing sterile lyophilized triptorelin pamoate microgranules incorporated in a biodegradable copolymer of lactic and glycolic acids, with injection kit consisting of a vial adapter, a 21 gauge 1 ½” injection needle, and a pre-filled syringe contain...
Frequently Asked Questions
What is Triptorelin Pamoate used for?▼
1 INDICATIONS AND USAGE TRELSTAR is indicated for the treatment of advanced prostate cancer [ see Clinical Studies (14) ]. TRELSTAR is a gonadotropin releasing hormone (GnRH) agonist indicated for the treatment of advanced prostate cancer. ( 1 )
What are the side effects of Triptorelin Pamoate?▼
6 ADVERSE REACTIONS The following is discussed in more detail in other sections of the labeling: Hypersensitivity Reactions [ see Warnings and Precautions ( 5.1 ) ] Tumor Flare [ see Warnings and Precautions ( 5.2 ) ]. Metabolic Syndrome [ see Warnings and Precautions ( 5.3 ) ] Cardiovascular Diseases [ see Warnings and Precautions ( 5.4 ) ]. Convulsions [ see Warnings and Precautions ( 5.5 ) ]. Severe Cutaneous Adverse Reactions [ see Warnings and Precautions ( 5.6 ) ]. Effect of QT/QTc Interval [ see Warnings and Precautions ( 5.7 ) ]. 3.75 mg: The most common adverse reactions (≥ 5%) during TRELSTAR 3.75 mg therapy included hot flushes, skeletal pain, impotence, and headache.
Can I take Triptorelin Pamoate during pregnancy?▼
8.1 Pregnancy Risk Summary Based on findings in animal studies and mechanism of action, TRELSTAR can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . Expected hormonal changes that occur with TRELSTAR treatment increase the risk for pregnancy loss.
What are the important warnings for Triptorelin Pamoate?▼
5 WARNINGS AND PRECAUTIONS Hypersensitivity: Anaphylactic shock, hypersensitivity, and angioedema have been reported. In the event of a reaction, discontinue TRELSTAR and initiate appropriate medical management. ( 5.1 ) Tumor Flare: Transient increase in serum testosterone levels can occur within the first few weeks of treatment. This may worsen prostate cancer and result in spinal cord compression and urinary tract obstruction. Monitor patients at risk and manage as appropriate. ( 5.2 ) Metabolic Syndrome: The use of GnRH agonists may lead to an increased risk of metabolic changes such as hyperglycemia, diabetes, hyperlipidemia, and non-alcoholic fatty liver disease. 4 CONTRAINDICATIONS Known hypersensitivity to triptorelin or any other component of the product, or other GnRH agonists or GnRH. ( 4 ) 4.1 Hypersensitivity TRELSTAR is contraindicated in individuals with a known hypersensitivity to triptorelin or any other component of the product, or other GnRH agonists or GnRH [ see Warnings and Precautions (5.1) ].
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.