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Year : 2007  |  Volume : 44  |  Issue : 4  |  Page : 142-146

In vitro chemosensitivity profile of oral squamous cell cancer and its correlation with clinical response to chemotherapy

1 Head and Neck Service, Department of Surgery, Tata Memorial Hospital, Parel, Mumbai - 400 012, India
2 Anticancer Drug Screening Facility, Advanced Centre for Treatment, Research and Education in Cancer, Mumbai, India
3 Department of Medical Oncology, Tata Memorial Hospital, Parel, Mumbai - 400 012, India

Correspondence Address:
K A Pathak
Head and Neck Service, Department of Surgery, Tata Memorial Hospital, Parel, Mumbai - 400 012
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0019-509X.39376

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Context : Oral cancers represent a disparate group of tumors with diverse clinical behavior and chemosensitivity profile. Currently, it is difficult to predict whether a tumor will respond to chemotherapy and which drug(s) will achieve the maximum clinical response. Aims : To study in vitro chemosensitivity profile of oral cancers and to correlate the in vitro chemosensitivity of oral cancer to clinical response to chemotherapy. Settings and Design : Prospective study in a tertiary cancer care center. Methods and Material : We prospectively studied the chemosensitivity profile of 57 untreated, advanced, unresectable oral cancers to cisplatin, methotrexate, 5-fluorouracil and their combinations by using histoculture drug response assay (HDRA) and correlated them to the clinical response to chemotherapy. Statistical Analysis Used : Chi Square test. Results : Biopsy samples were successfully histocultured in 52/57 (91%) cases. Of these 52 evaluable patients, 47 had primary gingivo-buccal cancers and five had tongue / floor of mouth cancers. Based on the assay, 27 (52%) tumors were sensitive to cisplatin, 27 (52%) to methotrexate, 24 (46%) to 5-fluorouracil, 38 (73%) to combination of cisplatin and methotrexate and 36 (69%) to combination of cisplatin and 5-fluorouracil. Of these, 31 patients with good performance status received two cycles of chemotherapy using one or more of these test drugs. There was a significant correlation (p=0.03) between the in vitro chemosensitivity and the clinical response. Negative predictive value of the test was 80%, positive predictive value-69%, sensitivity-79% and specificity -71%. The overall accuracy of the assay was 74%. Conclusions : We found HDRA to be a fairly good predictor of chemo-response of oral cancer.


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