Pentostatin

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Information about Pentostatin

Pentostatin is a purine analogue and antineoplastic agent used in the therapy of hairy cell leukemia and T cell lymphomas.

Liver safety of Pentostatin

Pentostatin is associated with a low rate of serum enzyme elevations during therapy and has been linked to rare instances of severe acute liver injury with jaundice. 

Mechanism of action of Pentostatin

Pentostatin (pen" toe stat' in) is a purine analogue (2'-deoxycoformycin) that is used in the treatment of hairy cell leukemia and T cell lymphomas.  Pentostatin is a transition state analogue of a major intermediate in the pathway of the adenosine deaminase reaction.  As a consequence, pentostatin inhibits adenosine deaminase and causes accumulation of intracellular adenosine and deoxyadenosine which cause a block DNA synthesis.  This imbalance of nucleotide pools is particularly toxic to lymphocytes. 

FDA approval information for Pentostatin

Pentostatin was found to have marked activity against hairy leukemia and T cell lymphomas and was approved for this use in the United States in 1991. 

Dosage and administration for Pentostatin

Pentostatin is available as a solution for injection generically and under the trade name Nipent.  The typical dose regimen is 4 mg/m2 given intravenously every other week for 6 months.  Repeat courses are recommended only for patients who have a response and later relapse. 

Side effects of Pentostatin

Common side effects include bone marrow suppression, fever, infections, nausea, vomiting, anorexia, diarrhea, headache, fatigue and skin rash.  Because pentostatin tends to deplete normal T cells, opportunistic infections can occur and immunosuppression can persist for months or years after discontinuation.  At high doses, pentostatin can cause severe renal and neurologic toxicity and in combination with fludarabine can cause pulmonary toxicity. 


Antineoplastic Agents

Alkylating Agents - Altretamine, Bendamustine, Busulfan, Carmustine, Chlorambucil, Cyclophosphamide, Dacarbazine, Ifosfamide, Lomustine, Mechlorethamine, Melphalan, Procarbazine, Streptozocin, Temozolomide, Thiotepa, Trabectedin

Platinum Coordination Complexes - Carboplatin, Cisplatin, Oxaliplatin

Antibiotics Cytotoxic - Bleomycin, Dactinomycin, Daunorubicin, Doxorubicin, Epirubicin, Idarubicin, Mitomycin, Mitoxantrone, Plicamycin, Mithramycin, Valrubicin

Antimetabolites Antifolates - Methotrexate, Pemetrexed, Pralatrexate, Trimetrexate

Purine Analogues - Azathioprine, Cladribine, Clofarabine, Fludarabine, Mercaptopurine, Nelarabine, Pentostatin, Thioguanine

Pyrimidine Analogues - Azacitidine, Capecitabine, Cytarabine, Decitabine, Floxuridine, Fluorouracil, Gemcitabine, Trifluridine/Tipracil

Biologic Response Modifiers - Aldesleukin (IL-2), Denileukin Diftitox, Interferon gamma

Histone Deacetylase Inhibitors - Belinostat, Panobinostat, Romidepsin, Vorinostat

Hormonal Agents Antiandrogens - Abiraterone, Bicalutamide, Cyproterone, Enzalutamide, Flutamide, Nilutamide

Antiestrogens (including Aromatase Inhibitors) - Anastrozole, Exemestane, Fulvestrant, Letrozole

Selective Estrogen Receptor Modulators - Raloxifene, Tamoxifen, Toremifene

Gonadotropin Releasing Hormone Analogues - Degarelix, Goserelin, Histrelin, Leuprolide, Triptorelin

Peptide Hormones - Lanreotide, Octreotide, Pasireotide

Monoclonal Antibodies - Alemtuzumab, Atezolizumab, Avelumab, Bevacizumab, Blinatumomab, Brentuximab, Cetuximab, Daratumumab, Dinutuximab, Durvalumab, Elotuzumab, Gemtuzumab, Inotuzumab Ozogamicin, Ipilimumab, Necitumumab, Nivolumab, Ofatumumab, Olaratumab, Panitumumab, Pembrolizumab, Pertuzumab, Ramucirumab, Rituximab, Tositumomab, Trastuzumab

Protein Kinase Inhibitors - Abemaciclib, Acalabrutinib, Afatinib, Alectinib, Axitinib, Bortezomib, Bosutinib, Brigatinib, Cabozantinib, Carfilzomib, Ceritinib, Cobimetinib, Copanlisib, Crizotinib, Dabrafenib, Dasatinib, Enasidenib, Erlotinib, Gefitinib, Ibrutinib, Idelalisib, Imatinib, Ivosidenib, Ixazomib, Lapatinib, Lenvatinib, Neratinib, Nilotinib, Niraparib, Olaparib, Osimertinib, Palbociclib, Pazopanib, Ponatinib, Regorafenib, Ribociclib, Rucaparib, Ruxolitinib, Sonidegib, Sorafenib, Sunitinib, Trametinib, Vandetanib, Vemurafenib, Vismodegib

Taxanes - Cabazitaxel, Docetaxel, Paclitaxel

Topoisomerase Inhibitors - Etoposide, Irinotecan, Teniposide, Topotecan

Tyrosine Kinase Receptor Inhibitors See Protein Kinase Inhibitors

Vinca Alkaloids - Vinblastine, Vincristine, Vinorelbine

Miscellaneous - Asparaginase (Pegaspargase), Bexarotene, Eribulin, Everolimus, Hydroxyurea, Ixabepilone, Lenalidomide, Mitotane, Omacetaxine, Pomalidomide, Temsirolimus, Thalidomide, Venetoclax

 

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