Epipodophyllotoxin (VP16-213) in small cell carcinoma of the Bronchus resistant to initial combination chemotherapy. 1982

P G Harper, and M B Dally, and D M Geddes, and S G Spiro, and J F Smyth, and R L Souhami

Thirty-eight patients with small cell carcinoma of the bronchus resistant to initial chemotherapy with cyclophosphamide methotrexate and CCNU, were treated with VP16-213 alone in a dose of 120 mg/m2 i.v. on days 1, 3, and 5 every 3 weeks. Twelve patients died before three courses of treatment. In 26 patients who received three or more courses only one, transient partial response occurred. One or more components of the initial chemotherapy seems to confer resistance to the action of VP16-213 in this disease.

UI MeSH Term Description Entries
D011034 Podophyllotoxin A lignan (LIGNANS) found in PODOPHYLLIN resin from the roots of PODOPHYLLUM plants. It is a potent spindle poison, toxic if taken internally, and has been used as a cathartic. It is very irritating to skin and mucous membranes, has keratolytic actions, has been used to treat warts and keratoses, and may have antineoplastic properties, as do some of its congeners and derivatives. Epipodophyllotoxin,CPH86,Condyline,Condylox,Podocon-25,Podofilm,Podofilox,Podophyllotoxin, (5R-(5 alpha,5a alpha,8a alpha,9 alpha))-Isomer,Podophyllotoxin, (5R-(5 alpha,5a alpha,8a alpha,9 beta))-Isomer,Podophyllotoxin, (5R-(5 alpha,5a alpha,8a beta,9 alpha))-Isomer,Podophyllotoxin, (5R-(5 alpha,5a beta,8a alpha,9 beta))-Isomer,Wartec,Warticon
D001984 Bronchial Neoplasms Tumors or cancer of the BRONCHI. Neoplasms, Bronchial,Bronchial Neoplasm,Neoplasm, Bronchial
D004351 Drug Resistance Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration. Resistance, Drug
D004359 Drug Therapy, Combination Therapy with two or more separate preparations given for a combined effect. Combination Chemotherapy,Polychemotherapy,Chemotherapy, Combination,Combination Drug Therapy,Drug Polytherapy,Therapy, Combination Drug,Chemotherapies, Combination,Combination Chemotherapies,Combination Drug Therapies,Drug Polytherapies,Drug Therapies, Combination,Polychemotherapies,Polytherapies, Drug,Polytherapy, Drug,Therapies, Combination Drug
D005047 Etoposide A semisynthetic derivative of PODOPHYLLOTOXIN that exhibits antitumor activity. Etoposide inhibits DNA synthesis by forming a complex with topoisomerase II and DNA. This complex induces breaks in double stranded DNA and prevents repair by topoisomerase II binding. Accumulated breaks in DNA prevent entry into the mitotic phase of cell division, and lead to cell death. Etoposide acts primarily in the G2 and S phases of the cell cycle. Demethyl Epipodophyllotoxin Ethylidine Glucoside,Celltop,Eposide,Eposin,Eto-GRY,Etomedac,Etopos,Etoposide Pierre Fabre,Etoposide Teva,Etoposide, (5S)-Isomer,Etoposide, (5a alpha)-Isomer,Etoposide, (5a alpha,9 alpha)-Isomer,Etoposide, alpha-D-Glucopyranosyl Isomer,Etoposido Ferrer Farma,Exitop,Lastet,NSC-141540,Onkoposid,Riboposid,Toposar,VP 16-213,VP-16,Vepesid,Vépéside-Sandoz,Eto GRY,Etoposide, alpha D Glucopyranosyl Isomer,NSC 141540,NSC141540,Teva, Etoposide,VP 16,VP 16 213,VP 16213,VP16,Vépéside Sandoz,alpha-D-Glucopyranosyl Isomer Etoposide
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D018288 Carcinoma, Small Cell An anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with scanty neoplasm. It is characterized by a dominant, deeply basophilic nucleus, and absent or indistinct nucleoli. (From Stedman, 25th ed; Holland et al., Cancer Medicine, 3d ed, p1286-7) Carcinoma, Oat Cell,Oat Cell Carcinoma,Small Cell Carcinoma,Carcinomas, Oat Cell,Carcinomas, Small Cell,Oat Cell Carcinomas,Small Cell Carcinomas

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