Treatment of patients with recurrent soft tissue sarcoma depends on the type of initial presentation and treatment. Patients who develop a local recurrence often can be treated by local therapy: surgical excision plus radiation therapy after previous minimal therapy or amputation after previous aggressive treatment.[1,2,3,4,5,6,7] Resection of limited pulmonary metastases may be associated with favorable disease-free survival.[8,9,10][Level of evidence: 3iiiDiv] However, the contribution of selection factors, such as low tumor burden, slow tumor growth, and long disease-free interval, to these favorable outcomes is not known.
There is no standard chemotherapy for recurrent soft tissue sarcomas that have progressed after doxorubicin as a single agent or in combination with other agents that have clinical activity, such as ifosfamide, epirubicin, gemcitabine, and paclitaxel. Any of these agents not previously administered to the patient may be used sequentially at the time of recurrence or progression.[11,12,13,14][Level of Evidence: 3iiiDiv] Given that none of these agents has been shown to increase overall survival in this setting, clinical trials are an appropriate option.
Hydrazine sulfate is a chemical compound that has been studied as a treatment for cancer and certain side effects caused by cancer (see Question 1).
Hydrazine sulfate may block the tumor from taking in glucose, which is a type of sugar that tumor cells need to grow (see Question 3).
In randomized clinical trials (a type of research study), hydrazine sulfate did not make tumors shrink or go away. In some randomized trials, however, hydrazine sulfate was reported to be helpful in treating...
Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with recurrent adult soft tissue sarcoma. The list of clinical trials can be further narrowed by location, drug, intervention, and other criteria.
General information about clinical trials is also available from the NCI Web site.
Singer S, Nielsen T, Antonescu CR: Molecular biology of soft tissue sarcoma. In: DeVita VT Jr, Lawrence TS, Rosenberg SA: Cancer: Principles and Practice of Oncology. 9th ed. Philadelphia, Pa: Lippincott Williams & Wilkins, 2011, pp 1522-32.
Singer S, Maki RG, O'Sullivan B: Soft tissue sarcoma. In: DeVita VT Jr, Lawrence TS, Rosenberg SA: Cancer: Principles and Practice of Oncology. 9th ed. Philadelphia, Pa: Lippincott Williams & Wilkins, 2011, pp 1533-77.
Malawer MM, Helman LJ, O'Sullivan B: Sarcomas of bone. In: DeVita VT Jr, Lawrence TS, Rosenberg SA: Cancer: Principles and Practice of Oncology. 9th ed. Philadelphia, Pa: Lippincott Williams & Wilkins, 2011, pp 1578-1609.
Midis GP, Pollock RE, Chen NP, et al.: Locally recurrent soft tissue sarcoma of the extremities. Surgery 123 (6): 666-71, 1998.
Essner R, Selch M, Eilber FR: Reirradiation for extremity soft tissue sarcomas. Local control and complications. Cancer 67 (11): 2813-7, 1991.
Singer S, Antman K, Corson JM, et al.: Long-term salvageability for patients with locally recurrent soft-tissue sarcomas. Arch Surg 127 (5): 548-53; discussion 553-4, 1992.
Lewis JJ, Leung D, Heslin M, et al.: Association of local recurrence with subsequent survival in extremity soft tissue sarcoma. J Clin Oncol 15 (2): 646-52, 1997.
van Geel AN, Pastorino U, Jauch KW, et al.: Surgical treatment of lung metastases: The European Organization for Research and Treatment of Cancer-Soft Tissue and Bone Sarcoma Group study of 255 patients. Cancer 77 (4): 675-82, 1996.
Casson AG, Putnam JB, Natarajan G, et al.: Five-year survival after pulmonary metastasectomy for adult soft tissue sarcoma. Cancer 69 (3): 662-8, 1992.
Putnam JB Jr, Roth JA: Surgical treatment for pulmonary metastases from sarcoma. Hematol Oncol Clin North Am 9 (4): 869-87, 1995.
Lorigan P, Verweij J, Papai Z, et al.: Phase III trial of two investigational schedules of ifosfamide compared with standard-dose doxorubicin in advanced or metastatic soft tissue sarcoma: a European Organisation for Research and Treatment of Cancer Soft Tissue and Bone Sarcoma Group Study. J Clin Oncol 25 (21): 3144-50, 2007.
Nielsen OS, Dombernowsky P, Mouridsen H, et al.: High-dose epirubicin is not an alternative to standard-dose doxorubicin in the treatment of advanced soft tissue sarcomas. A study of the EORTC soft tissue and bone sarcoma group. Br J Cancer 78 (12): 1634-9, 1998.
Maki RG, Wathen JK, Patel SR, et al.: Randomized phase II study of gemcitabine and docetaxel compared with gemcitabine alone in patients with metastatic soft tissue sarcomas: results of sarcoma alliance for research through collaboration study 002 [corrected]. J Clin Oncol 25 (19): 2755-63, 2007.
Okuno S, Ryan LM, Edmonson JH, et al.: Phase II trial of gemcitabine in patients with advanced sarcomas (E1797): a trial of the Eastern Cooperative Oncology Group. Cancer 97 (8): 1969-73, 2003.
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