Purpose: To determine the efficacy and toxicity of docetaxel as first-line chemotherapy in adult patients with locally advanced and/or metastatic soft tissue sarcoma (STS).Patients/methods. Thirty eligible patients, with histologically proven STS, Eastern Cooperative Oncology Group (ECOG) performance status 0–2 and bidimensionally measurable disease, entered this study. None had received previous chemotherapy. Docetaxel 100 mg m−2 was given as a 1-h intravenous infusion every 3 weeks. Patients were evaluable for
response, evaluated by WHO criteria, after one cycle of chemotherapy and toxicity was graded by NCIC-CTG common toxicity criteria.Results. One hundred and thirty two cycles were aldministered, with a range per patient of 1–9. The median delivered dose intensity was 32.2 mg m−2 week−1 (planned 33.3 mg m−2 week−1 ) and 67% of patients received ≥90% planned dose intensity. There were three partial responses (10.7%; 95% confidence interval 2.3–28.2) with a median duration of 7 months (range 6.4–8.3 months). Thirty patients were evaluable for non-haematological toxicity and 28 for haematological toxicity (repeat counts were not available in two patients). Haematological toxicity was moderately severe, with 18 (64%) patients experiencing at least one episode of grade 4 neutropenia, and 7 (25%) patients experiencing febrile neutropenia.Conclusions. In this study, activity of docetaxel in adult chemotherapy-naïve patients with advanced STS was modest