Informational only — Not medical advice. Always consult a licensed healthcare provider.

Community data Updated 22 hours ago

Indications

Thiotepa is used together with other chemotherapy medicines. It is given with or without total body irradiation (TBI) as conditioning treatment before allogeneic or autologous haematopoietic progenitor cell transplantation (HPCT) in haematological diseases, in both adults and children. It is also used when high dose chemotherapy with HPCT support is appropriate for treating solid tumours, again in adults and children.

⚠️ Always consult a registered physician before taking any medicine.

Pharmacology

Thiotepa is a cytotoxic agent that acts on more than one site in the cell, and it is related chemically and pharmacologically to the nitrogen mustard. Its action is described as radiomimetic, meaning it works much like radiation therapy. It is believed to do this by releasing ethylene imine radicals. These radicals disrupt the bonds of DNA, for example by alkylation of guanine at the N-7. That breaks the linkage between the purine base and the sugar and frees the alkylated guanine.

Pregnancy & Breastfeeding

There are no data on the use of thiotepa during pregnancy. In pre-clinical studies, thiotepa has been shown to cause embryofoetal lethality and teratogenicity, as most alkylating agents do. For this reason, thiotepa is contraindicated during pregnancy.

It is not known whether thiotepa passes into human milk. Because of its pharmacological properties and its potential toxicity for breast-fed newborns and infants, breastfeeding is contraindicated during treatment with thiotepa.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Dosage Reference

⚠️ Reference ranges from official sources only. Consult your doctor for personalized dosing.

Adults: For adults having autologous HPCT, the recommended dose of Thiotepa in haematological diseases is between 125 mg/m2/day (3.38 mg/kg/day) and 300 mg/m2/day (8.10 mg/kg/day). It is given as a single daily infusion on 2 up to 4 consecutive days before the transplant, depending on which other chemotherapeutic medicinal products are combined with it. The total cumulative dose must not go above 900 mg/m2 (24.32 mg/kg) during the entire conditioning treatment. Lymphoma: the dose is again between 125 mg/m2/day (3.38 mg/kg/day) and 300 mg/m2/day (8.10 mg/kg/day), as a single daily infusion on 2 up to 4 consecutive days before autologous HPCT, depending on the combination with other chemotherapeutic medicinal products. The total maximum cumulative dose is 900 mg/m2 (24.32 mg/kg) during the entire conditioning treatment. Central nervous system lymphoma: the recommended dose is 185 mg/m2/day (5 mg/kg/day) as a single daily infusion for 2 consecutive days before autologous HPCT. The total maximum cumulative dose during the entire conditioning treatment is 370 mg/m2 (10 mg/kg). Multiple myeloma: the dose is between 150 mg/m2/day (4.05 mg/kg/day) and 250 mg/m2/day (6.76 mg/kg/day), as a single daily infusion for 3 consecutive days before autologous HPCT, depending on the combination with other chemotherapeutic medicinal products. The total cumulative dose must not exceed 750 mg/m2 (20.27 mg/kg) during the entire conditioning treatment. Solid tumours: the recommended dose is between 120 mg/m2/day (3.24 mg/kg/day) and 250 mg/m2/day (6.76 mg/kg/day), divided in one or two daily infusions. It is given on 2 up to 5 consecutive days before autologous HPCT, depending on the combination with other chemotherapeutic medicinal products. The total maximum cumulative dose is 800 mg/m2 (21.62 mg/kg) during the entire conditioning treatment. Breast cancer: the dose is between 120 mg/m2/day (3.24 mg/kg/day) and 250 mg/m2/day (6.76 mg/kg/day) as a single daily infusion, on 3 up to 5 consecutive days before autologous HPCT, depending on the combination with other chemotherapeutic medicinal products. The total cumulative dose must not exceed 800 mg/m2 (21.62 mg/kg) during the entire conditioning treatment. CNS tumours: the recommended dose is between 125 mg/m2/day (3.38 mg/kg/day) and 250 mg/m2/day (6.76 mg/kg/day), divided in one or two daily infusions. It is given on 3 up to 4 consecutive days before autologous HPCT, depending on the combination with other chemotherapeutic medicinal products. The total maximum cumulative dose is 750 mg/m2 (20.27 mg/kg) during the entire conditioning treatment. Ovarian cancer: the recommended dose is 250 mg/m2/day (6.76 mg/kg/day) as a single daily infusion on 2 consecutive days before autologous HPCT. The total maximum cumulative dose during the entire conditioning treatment is 500 mg/m2 (13.51 mg/kg). Germ cell tumours: the dose is between 150 mg/m2/day (4.05 mg/kg/day) and 250 mg/m2/day (6.76 mg/kg/day), as a single daily infusion for 3 consecutive days before autologous HPCT, depending on the combination with other chemotherapeutic medicinal products. The total cumulative dose must not exceed 750 mg/m2 (20.27 mg/kg) during the entire conditioning treatment. For allogeneic HPCT in haematological diseases, the recommended dose is between 185 mg/m2/day (5 mg/kg/day) and 481 mg/m2/day (13 mg/kg/day), divided in one or two daily infusions. It is given on 1 up to 3 consecutive days before allogeneic HPCT, depending on the combination with other chemotherapeutic medicinal products. The total maximum cumulative dose is 555 mg/m2 (15 mg/kg) during the entire conditioning treatment. Lymphoma: the recommended dose is 370 mg/m2/day (10 mg/kg/day), divided in two daily infusions before allogeneic HPCT. The total maximum cumulative dose during the entire conditioning treatment is 370 mg/m2 (10 mg/kg). Multiple myeloma: the recommended dose is 185 mg/m2/day (5 mg/kg/day) as a single daily infusion before allogeneic HPCT. The total maximum cumulative dose during the entire conditioning treatment is 185 mg/m2 (5 mg/kg). Leukaemia: the dose is between 185 mg/m2/day (5 mg/kg/day) and 481 mg/m2/day (13 mg/kg/day), divided in one or two daily infusions. It is given on 1 up to 2 consecutive days before allogeneic HPCT, depending on the combination with other chemotherapeutic medicinal products. The total cumulative dose must not exceed 555 mg/m2 (15 mg/kg) during the entire conditioning treatment. Thalassemia: the recommended dose is 370 mg/m2/day (10 mg/kg/day), divided in two daily infusions and given before allogeneic HPCT. The total maximum cumulative dose during the entire conditioning treatment is 370 mg/m2 (10 mg/kg).

Side Effects & Interactions