Tenecteplase Intravenous and Toremifene Citrate

• Generic Name: tenecteplase
• Dosage Forms: n.a.
• Other Brand Names: TNKase

Tenecteplase is used to dissolve blood clots that have formed in the blood vessels of the heart and seriously lessen the flow of blood in the heart. Tenecteplase is used to improve survival after a heart attack.

• Generic Name: toremifene
• Dosage Forms: n.a.
• Other Brand Names: Fareston

Palliative treatment of metastatic breast cancer in postmenopausal women with estrogen-receptor positive or estrogen-receptor unknown tumors (designated an orphan drug by FDA for this use). Not recommended for treatment of estrogen-receptor negative breast tumors. Similar efficacy and toxicity as tamoxifen. Not known whether toremifene offers a therapeutic advantage over tamoxifen for the treatment of advanced breast cancer in eligible patients.

Under investigation for use as adjuvant therapy for early-stage breast cancer in node-positive postmenopausal women. Results from trials to date suggest similar efficacy and toxicity as tamoxifen.

Efficacy in treatment of advanced breast cancer in men not demonstrated.

Because of demonstrated cross-resistance with tamoxifen, usefulness of toremifene as second-line endocrine therapy for treatment of metastatic breast cancer refractory to tamoxifen appears to be limited.

Under investigation as a preventive agent for prostate cancer in men with high-grade prostatic intraepithelial neoplasia and no evidence of prostate cancer.