A phase 1B/2 study of aldoxorubicin in patients with soft tissue sarcoma.
Cancer
; 121(4): 570-9, 2015 Feb 15.
Article
em En
| MEDLINE
| ID: mdl-25312684
ABSTRACT
BACKGROUND:
Aldoxorubicin, a prodrug of doxorubicin, covalently binds to serum albumin, allowing for the administration of much higher doses of doxorubicin in a previous clinical study. The current phase 1B/2 study evaluated the safety of aldoxorubicin, including preliminary efficacy and safety of its maximum tolerated dose (MTD).METHODS:
Patients aged 18 to 70 years with recurrent/refractory malignant solid tumors received aldoxorubicin at a dose of 230 mg/m(2) , 350 mg/m(2) , or 450 mg/m(2) (170 mg/m(2) , 260 mg/m(2) , or 335 mg/m(2) doxorubicin equivalents, respectively) by intravenous infusion once every 21 days for up to 8 consecutive cycles.RESULTS:
A total of 25 patients were enrolled, including 17 patients (68%) with advanced soft tissue sarcoma (STS). The MTD of aldoxorubicin was 350 mg/m(2) ; dose-limiting toxicities included grade 4 neutropenia and grade 3 febrile neutropenia (NCI CTCAE v4.0). Drug-related adverse events included myelosuppression, nausea, fatigue, alopecia, stomatitis, vomiting, and oropharyngeal pain. No clinically significant cardiac toxicities were reported. Seven patients (28%) had elevated serum troponin levels while taking part in the study, but these elevations were not clinically significant or associated with cardiac findings. A partial response was achieved in 20% of patients, and stable disease was reported in 40% of patients. The median progression-free survival was 4.80 months, and the median overall survival was 11.25 months. Among patients with STS who were treated at the MTD (13 patients), a partial response was achieved in 38% and stable disease in 46%; the median progression-free survival was 11.25 months and the median overall survival was 21.71 months.CONCLUSIONS:
Aldoxorubicin at a dose of 350 mg/m(2) administered once every 21 days for up to 8 cycles was found to be acceptably safe and demonstrated preliminary efficacy in patients with advanced solid tumors, including STS. Further investigation of aldoxorubicin is ongoing.Palavras-chave
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sarcoma
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Doxorrubicina
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Antibióticos Antineoplásicos
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Recidiva Local de Neoplasia
Limite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Cancer
Ano de publicação:
2015
Tipo de documento:
Article