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1.
BACKGROUND: The aim of this study was to evaluate the efficacy and toxicity of a combination of paclitaxel, cisplatin and 5-fluorouracil (PPF) as induction chemotherapy in patients with locally advanced squamous cell carcinoma of the head and neck (SCCHN). METHODS: Seventy patients with previously untreated stage III-IV SCCHN were included in this phase II trial. Induction treatment consisted of a maximum of three outpatient courses of paclitaxel 175 mg/m(2) as a 3-h infusion on day 1, cisplatin 100 mg/m(2) on day 2, and 5-fluorouracil (5-FU) 500-750 mg/m(2)/day as a 24-h continuous infusion on days 2-6, repeated every 3 weeks. The 5-FU dose was reduced from 750 mg/m(2)/day to 500 mg/m(2)/day due to the excessive toxicity observed in the first 14 patients enrolled. Local treatment consisted of radiotherapy and/or surgery. RESULTS: Two-hundred-and-one cycles were administered to 70 patients. The main toxicities of PPF were neutropenia (grade 4, 14%; febrile neutropenia, 4%), peripheral neuropathy (grade 2-3, 14%) and catheter-associated venous thrombosis (7%). There were three early deaths (two from neutropenic sepsis and one from pulmonary embolism), and 13 patients required hospitalization due to toxicity. Other side effects included mucositis, anorexia, diarrhea, myalgias and alopecia. The overall response rate to PPF was 88%, including 59% complete responses (CR) and 29% partial responses. The CR rates at the primary tumor and neck lymph nodes were 74% and 62%, respectively. With a median follow-up of 51 months (range 40-63 months), the estimated 5-year time-to-disease progression and overall survival rates were 56% and 44%, respectively. CONCLUSIONS: The PPF regimen has major antitumor activity and is associated with manageable toxicity as induction treatment in SCCHN patients. The high complete response rate and favorable long-term outcome justify further evaluation of this chemotherapy combination.  相似文献   

2.
Abstract Introduction: Standard fractionation radiation therapy (RT) combined with concomitant chemotherapy (CT) based on cisplatin schemes is actually the standard treatment for locally advanced non-resectable squamous cell carcinoma of head and neck (SCCHN). The appearance of taxoids has introduced a new kind of treatment with high antitumoral power. The aim of this study is to add more information about the role of this new approach. Materials and methods: Twenty-six patients with locally advanced non-resectable SCCHN were recruited at six institutions in Spain, between January 2001 and January 2003. Docetaxel was administered weekly, for 6 weeks, concurrently with RT. Results: The mean total delivered dose of RT was 70’2 Gy (range 64-74 Gy). The median and mean duration of time were 63 days and 61 days (range 49-103 days) respectively. After a median time control of 19 months (range 3.3-42.2 months), the response rate was 83.4%. The median time to local progression was 16.4 months (95% confidence interval [CI]=4.4-28.4 months). The median survival time was 26.9 months, with one- and two-year overall survival of 66.9% (95% CI=48.1-85.7%) and 57.5% (95% CI=37.3-77.7%) respectively. The median duration time response was 15.1 months (95% CI=3.7-26.5 months). The median time until treatment failure was 9.4 months (95% CI=4.7-14.1). Incidence of grade III-IV mucositis was 88%, neutropenia 72% and skin toxicity 92% (24% grade III-IV). The incidence of severe late toxicity (grade III and IV) due to RT/CT was 31.4%. Conclusions: Although therapeutics results are equivalent to cisplatin schemes of concurrent CT-RT, mucositis and cutaneous toxicity registered in this trial must be considered as limiting factors to application of this new approach.  相似文献   

3.

BACKGROUND:

Both concomitant chemotherapy and altered fractionation radiotherapy (RT) have been shown to improve outcomes for patients with locoregionally advanced head and neck squamous cell carcinomas. However, both strategies also increase acute toxicity, and it is questionable whether the 2 can be safely combined. Traditional concomitant chemotherapy regimens include high‐dose cisplatin given at 100 mg/m2 every 3 weeks. The authors' purpose was to report efficacy and toxicity after weekly cisplatin (30 mg/m2/wk) concurrent with altered fractionation RT.

METHODS:

One hundred twenty‐one patients with American Joint Committee on Cancer stages II (3%), III (13%), or IV (84%) squamous cell carcinomas of the oropharynx (70%), hypopharynx (20%), or larynx (10%) were treated between 2000 and 2006 at the University of Florida with hyperfractionated RT (55 patients) or concomitant boost RT (66 patients) and concomitant cisplatin (30 mg/m2/wk).

RESULTS:

Median follow‐up was 2.9 years; median follow‐up on survivors was 3.6 years. Seventy‐nine percent of patients completed ≥6 cycles of chemotherapy; 94% received ≥7200 centigrays. Seven (6%) patients changed from cisplatin to carboplatin because of bone marrow toxicity. Gastrostomy tube feeding was required in 54% of patients either before (16%) or during RT (38%). Two (1.6%) patients died from therapy‐related complications. The 5‐year outcomes were: local control, 83%; locoregional control, 79%; distant metastasis‐free survival, 88%; cause‐specific survival, 76%; and overall survival, 59%. Seven (6%) patients had severe late complications. Three (3%) patients required a permanent gastrostomy tube.

CONCLUSIONS:

Concomitant weekly cisplatin with altered fractionation RT is a safe and effective treatment regimen. Cancer 2010. © 2010 American Cancer Society.  相似文献   

4.
The aim of this study was to determine the regional control rate with concurrent chemoradiotherapy (CRT) based on pretreatment nodal size in mucosal head and neck squamous cell carcinoma (HNSCC) in patients who achieved a complete response (CR) at the primary site by 12 weeks post‐treatment. Between December 1997 and November 2003, 117 patients with node‐positive HNSCC were treated with concurrent CRT, with 108 (92%) achieving a CR at the primary site by 12 weeks. There were 93 males (86%), median age 55 (37–79) years and the most common primary site was the oropharynx (65%). Patients were divided into three subgroups: ≤3.0 cm 70 (65%), 3.1–6.0 cm 30 (28%) and ≥6.1 cm 8 (7%). All patients received concurrent platinum‐based chemotherapy and the median radiation dose was 70 Gy (60–72 Gy). The 3‐year regional control rate based on pretreatment nodal size was ≤3.0 cm 88% (95% confidence interval (CI) 78–94%), 3.1–6.0 cm 72% (95%CI 49–86%) and ≥6.1 cm 50% (95%CI 15–77%) (P = 0.001). The 3‐year regional control rate based on pre‐treatment nodal size was ≤3.0cm 88% (95%CI 78–94%), 3.1–6.0 cm 72% (95%CI 49–86%) and ≥6.1 cm 50% (95%CI 15–77%) (P = 0.001). These results provide a quantitative guide for the clinician as to the likelihood of regional control based on pretreatment nodal size following CRT in patients who achieve a CR at the primary site by 12 weeks post‐treatment.  相似文献   

5.
6.
The primary objective of this phase II study was to access the complete response (CR) rate to a new innovative induction regimen in patients with locally advanced head and neck cancer (LA-HNC). From October 2000 until October 2003 a total of 38 eligible patients (33 men and 5 women) entered the study. The large majority of them presented with a performance status of 0–1 and with clinical stage IV disease. Treatment consisted of three cycles of induction chemotherapy (IC) with paclitaxel 175 mg/m2 in a 3-h infusion on d 1, leucovorin (LV) 200 mg/m2 over 20 min immediately followed by FU 400 mg/m2 bolus and then 600 mg/m2 as a 24-h continuous infusion on d 1 and 2 and a cisplatin 75 mg/m2 over 1-h infusion on d 2 every 3 wk. This was then followed by radiation (70 Gy) and weekly cisplatin 40 mg/m2. After the completion of IC, 6/38 (16%) patients had CR. The CR rate was increased to 66% post-concomitant chemoradiotherapy (CCRT). Neutropenia (37.5%), pain (62%), nausea/vomiting (21%), and alopecia (79%) were the most frequent side effects during IC. The most pronounced toxicities during chemoradiotherapy were stomatitis (62.5%) and xerostomia (53%). Median time to progression was 11.0 mo and median survival 16.7 mo. One- and 2-yr survival rates were 73% and 38%, respectively. In conclusion, this novel induction regimen is active, is well tolerated, and can be successfully followed by CCRT with weekly cisplatin. CCRT should remain standard treatment for patients with LA-HNC. Novel induction combinations, such as that reported in the present study, should be evaluated in combination with CCRT only in the context of clinical trials.  相似文献   

7.
BACKGROUND: Our aim was to explore the use of concurrent chemoradiotherapy in the management of patients with squamous cell carcinoma of the head and neck from an occult primary (HNCOP). PATIENTS AND METHODS: From 1991 to 2000, 25 patients with T0N2M0 or T0N3M0 HNCOP were entered into five sequential phase II clinical trials. Chemoradiotherapy consisted of a split course of radiotherapy with concurrent 5-fluorouracil and hydroxyurea either alone or with cisplatin, or paclitaxel. Two of the five protocols incorporated induction chemotherapy. RESULTS: Nodal stage was N2a in five patients (20%), N2b in 13 (52%), N2c in one (4%) and N3 in six (24%). Twenty-two patients (88%) underwent neck dissection; 14 of 22 patients underwent neck dissection before initiating protocol therapy. Total radiation doses of 55-75 Gy (median 60 Gy) were delivered; radiation fields included the potential sites of mucosal primaries and the neck bilaterally. Selected patients received a radiation boost to the involved neck. With a median follow-up of 3.9 years, three patients have progressed (one local, two distant) and seven patients have died. Deaths were due to disease progression (three) or unrelated causes (four). No metachronous primaries developed. The 5-year progression-free and overall survival was 87% and 75%, respectively. CONCLUSION: Combined-modality treatment with intensive chemoradiotherapy results in excellent disease control and long-term survival for patients with N2-N3 HNCOP and compares favorably with traditional therapy.  相似文献   

8.
The objective of this study was to compare concomitant chemoradiotherapy based on weekly low-dose gemcitabine versus weekly low-dose paclitaxel in locally advanced head and neck squamous cell carcinoma. Previously, untreated patients with locally advanced squamous cell carcinoma of the head and neck were randomly assigned to one of the two concomitant chemoradiation regimens: (1) weekly gemcitabine at a dose of 100 mg/m2 over 30 min 1–2 h before radiotherapy and (2) weekly paclitaxal at a dose of 20 mg/m2 over 60 min 4–6 h before radiotherapy. The planned radiotherapy dose was 65 Gy over 6.5 weeks in 32 settings. Two hundred and sixteen patients were randomly divided into 2 groups: group A (110 patients) and group B (106 patients) who received concomitant weekly low-dose gemcitabine and low-dose paclitaxal, respectively, with the radiotherapy protocol. The hematological toxicity was generally mild. On the contrary, non-hematologic toxicities were severe. Grade III mucositis occurred in 36% in group A and in 24% in group B (P = 0.04). Moreover, grade III dermatitis were encountered in 24% in group A and 13% in group B (P = 0.049). Thirty-two (29%) of group A and 18(17%) of group B patients required enteral or parenteral feeding (P = 0.01). Sixteen (15%) of group A and 6 (6%) of group B required enteral or parenteral feeding that lasted for 6 months (P = 0.03). Regarding the late effect on swallowing, 8% of patients in group A and 2% of patients in group B required enteral or parenteral feeding for more than 6 months (P = 0.035). Response rates were 78 and 89% in groups A and B, respectively (P = 0.038). The 2-year progression-free survival figures were 54 and 64% of groups A and B, respectively; however, the 2-year overall survival figures were 56 and 67%, respectively. On the other hand, the 3-year progression-free survival figures were 39 and 48% for groups A and B, respectively, while the 3-year overall survival figures were 45 and 49%, respectively (P = 0.05). Both concomitant chemoradiotherapy regimens were easily given in the outpatient clinic. The regimen based on paclitaxel was significantly more tolerable and effective; however, the difference was not enormous.  相似文献   

9.
We aimed to evaluate the efficacy and safety of concurrent chemoradiotherapy with capecitabine and cisplatin in patients with locally advanced squamous cell carcinoma of the head and neck (SCCHN). In total, 37 patients with stage III or IV SCCHN were enrolled on the study. The chemotherapy consisted of two cycles of intravenous cisplatin of 80 mg m(-2) on day 1 and oral capecitabine 825 mg m(-2) twice daily from day 1 to day 14 at 3-week intervals. The radiotherapy (1.8-2.0 Gy 1 fraction day(-1) to a total dose of 70-70.2 Gy) was delivered to the primary tumour site and neck. The primary tumour sites were as follows: oral cavity (n=6), oropharynx (n=11), hypopharynx (n=8), larynx (n=3), nasopharynx (n=6), and paranasal sinus (n=3). After the chemoradiotherapy, 29 complete responses (78.4%) and 6 partial responses (16.2%) were confirmed. Grade 3 or 4 neutropenia occurred only in two patients, plus grade 3 febrile neutropenia was observed only in one patient. At a median follow-up duration of 19.8 months, the estimated overall survival and progression-free survival rate at 2-year was 76.8 and 57.9%, respectively. Concurrent chemoradiotherapy with capecitabine and cisplatin was found to be well tolerated and effective in patients with locally advanced SCCHN.  相似文献   

10.
11.
The concomitant boost technique is a variant of accelerated fractionation whereby the boost is delivered as a second daily fraction during the basic treatment course to reduce the total duration of treatment. From April 1972 through June 1983, 53 patients with advanced squamous cell carcinoma of various sites in the head and neck region were treated for cure at U.T. M. D. Anderson Hospital with this technique. In 12 patients, the concomitant boost was used because of rapid recurrence following surgical resection either before or after initiation of planned postoperative radiotherapy; the remaining patients had rapidly growing untreated or recurrent disease in the primary site, neck, or both. In most cases, the concomitant boost was delivered in fractions of 120-150 cGy, separated by 3-6 h from the basic daily treatment of 180-200 cGy. The boost treatments were given 2-3 times a week for 3-5 weeks, delivering an average of about 17 Gy in 12 fractions. Two different treatment techniques were used. Patients with predominantly neck disease (30) were treated with glancing AP and PA fields or with appositional electron beam portals to spare the mucous membranes, while those with advanced or rapidly progressive primary lesions, with or without nodal disease (23), received their concomitant boost through lateral photon or high energy electron beams to include the primary tumor site. As expected, the acute mucosal reactions were most severe in the latter group, but only three patients required interruption of treatment because of severe mucositis.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

12.
13.
LOO S.W., GEROPANTAS K., TASIGIANNOPOULOS Z., MARTIN C. & ROQUES T.W. (2013) European Journal of Cancer Care 22 , 32–40 Feasibility and tolerance of sequential chemoradiotherapy in squamous cell carcinoma of the head and neck This paper evaluates the feasibility and tolerance of sequential chemoradiotherapy in patients with squamous cell carcinoma of the head and neck and ascertains whether the use of induction chemotherapy compromises delivery of subsequent radiotherapy with or without concurrent chemotherapy. We also compared sequential chemoradiotherapy treatment adherence between the elderly and younger patients with squamous cell carcinoma of the head and neck. One hundred and ninety-four patients with head and neck squamous cell carcinoma who received induction chemotherapy with cisplatin and 5-fluorouracil were included in this study. Treatment-related death rate from induction chemotherapy was 1.5%. One hundred and ninety-one patients (98.5%) proceeded to radical radiotherapy, with 90.1% also receiving planned concomitant chemotherapy. One hundred and seventy-eight patients (93.2%) completed radiotherapy with no prolongation of the treatment duration. There were no statistical differences in sequential chemoradiotherapy treatment adherence and tolerance between the elderly and younger patients apart from the proportion who required hospitalisation during radiotherapy. Induction chemotherapy in head and neck squamous cell carcinoma does not compromise delivery of definitive radiotherapy with or without concurrent chemotherapy. Elderly patients with head and neck squamous cell carcinoma are able to tolerate aggressive treatments such as sequential chemoradiotherapy. Treatment ‘deintensification’ based solely on chronological age is not recommended.  相似文献   

14.
We compared concurrent combination chemotherapy and radiotherapy with surgery and adjuvant radiotherapy in patients with stage III/IV nonmetastatic squamous cell head and neck cancer. Patients with non-nasopharyngeal and nonsalivary resectable squamous cell head and neck cancer were randomised to receive either surgery followed by adjuvant radiotherapy (60 Gy over 30 fractions) or concurrent combination chemotherapy and radiotherapy (66 Gy in 33 fractions). Combination chemotherapy comprised two cycles of i.v. cisplatin 20 mg m(-2) day(-1) and i.v. 5-fluorouracil 1000 mg m(-2) day(-1), both to run over 96 h given on days 1 and 28 of the radiotherapy. A total of 119 patients were randomised. At a median follow-up of 6 years, there was no significant difference in the 3-year disease-free survival rate between the surgery and concurrent chemoradiotherapy (50 vs 40% respectively). The overall organ preservation rate or avoidance of surgery to primary site was 45%. Those with laryngeal/hypopharyngeal disease subsite had a higher organ-preservation rate than the rest (68 vs 30%). Combination chemotherapy and concurrent irradiation with salvage surgery was not superior to conventional surgery and postoperative radiotherapy for resectable advanced squamous cell head and neck cancer. However, this form of treatment schedule with a view to organ-preservation can be attempted especially for those with laryngeal/hypopharyngeal and possibly oropharyngeal disease subsites.  相似文献   

15.

Aim

To evaluate the efficacy of concurrent oral capecitabine with accelerated hypofractionated radical radiotherapy in locally advanced squamous cell carcinoma of the head and neck (SCCHN).

Materials and methods

Between 2001 and 2004, 50 patients with stage III/IV SCCHN (0 to 2 performance status) were enrolled into this study. The capecitabine dose was between 450 and 550 mg/m2 twice daily, continuously for 28 days. The radiotherapy dose was 5500 cGy in 20 fractions over 4 weeks. No intensity-modulated radiation was used. We evaluated the complete response rate, toxicity, locoregional control, overall survival, disease-free survival and cancer-specific survival.

Results

The median age was 55 (range 38-76) years; 72% had stage IV disease. The median follow-up was 6 years on the 30 surviving patients. Eighty-two per cent of patients completed the course of capecitabine and 94% completed prescribed radiotherapy. There were no treatment-related deaths, grade 3/4 haematological or renal toxicity. Five patients developed drug-related grade 3/4 acute toxicity (cardiac, skin, bowel); 47 developed grade 3/4 mucositis from chemoradiotherapy. Twenty-two (44%) patients required tube feeding and the tube dependency rate at 1 year was 6%. The complete response rate at 3 months was 90% (45/50 patients). Relapse occurred in 17/50 (34%) patients by 5 years. The locoregional control, overall survival, cancer-specific survival and disease-free survival rates at 3 years were 78, 72, 82 and 62%, respectively, and at 5 years were 72, 64, 75 and 56%, respectively.

Conclusion

This schedule of synchronous capecitabine for locally advanced SCCHN is well tolerated. The local control in this series compares favourably with other synchronous chemoradiotherapy reports. Chronic dysphagia and tube dependence is uncommon with this approach. Capecitabine as targeted therapy given with each fraction of radiotherapy and administered orally may have significant advantages over intravenous, 3 weekly cisplatin.  相似文献   

16.
Background: The role of chemotherapy in patients with recurrent squamouscell carcinomas of the head and neck (SCCHN) is unclear. The aim of this studywas to assess the ability of combination chemotherapy to control symptoms inthis setting.Patients and methods: Using a prospectively accrued database all patientsreferred for chemotherapy with symptomatic relapse following surgery wereidentified. Objective response was recorded using standard criteria andmaximum symptom response was assessed retrospectively from case notes usinga published scoring scale.Results: A total of 57 (median age 56, range 37–85) patients werestudied who had received mainly cisplatin/5-fluorouracil combinations.Thirty-seven had previously received radiotherapy. Fifty-two patients hadevaluable disease; 18 (35%) had objective responses (14 PRs and 4 CRs).There were a total of 103 symptoms recorded with eight different individualsymptoms. Forty-four (43%) symptoms improved on treatment, 52(50%) were unchanged and 7 (7%) worsened. The number of pateintswith improvement in the most frequently recorded symptoms were as follows:pain 11/28 (39%), swelling 12/23 (52%) and dysphagia 6/18(33%). Sixty-seven percent of patients with objective response also hadan improvement in their symptoms but a significant proportion (33%) ofnon-responders had a symptomatic response. Lack of objective response was notcorrelated with worsening symptoms. Grade 3/4 toxicity was uncommon(6%–17%) and there were no toxic deaths. A majority ofpatients (82%) experienced either no change or an improvement inperformance status.Conclusion: These results demonstrate that chemotherapy improves many ofthe symptoms associated with recurrent SCCHN, without deterioration inperformance status. Symptomatic improvement is more likely if there isevidence of significant tumour shrinkage, but even non-responding patients canbenefit.  相似文献   

17.
Background: Paclitaxel as single agent has shown marked activity in several malignancies. The aim of the present phase II trial was to determine the activity of paclitaxel/cisplatin in patients with metastatic or recurrent squamous cell carcinoma of the head and neck.Patients and methods: 200 mg/m2 paclitaxel was administered over three hours followed by cisplatin (100 mg/m2), repeated every 22 days. Twenty-eight patients were entered and received a total of 99 cycles (median 2, range 1–6). All patients were evaluable for toxicity, and 25 for response.Results: Hematologic toxicities included leukopenia CTC grade 3 in 13 patients, and grade 4 in five patients, neutropenia grade 3 in nine patients, and grade 4 in eigth patients, grade 3 anemia and grade 2 thrombocytopenia in one patient each. Non-hematologic toxicities included hypotension grade 2 (six patients), grade 3 (four patients), and grade 4 (two patients). A decline in renal function was observed in 15 courses and 10 patients, leading to a median delay of 2.5 days. Neurosensory and neuromotor toxicity grade 1 were observed in 13 patients (grade 2: 12 patients; grade 3: one patient), myalgia grade 3 in one patient, asthenia grade 3 in two and grade 4 in one patient. Partial responses were observed in 12 patients for an overall response rate of 48% (95% CI: 28%–68%) with a median response duration of 6.5 months (range 1-10 months). Stable disease was observed in seven patients, of who two also had clinical benefit.Conclusions: Paclitaxel 200 mg/m2 administered over three hours combined with cisplatin 100 mg/m2 is an active regimen warranting further evaluation.  相似文献   

18.
Background Cisplatin, paclitaxel and 5-fluorouracil (5-FU) have demonstrated significant activity in patients with advanced squamous head and neck cancer (HNSCC) despite relevant toxicity. A weekly administration of cisplatin and paclitaxel with continuous infusion of 5-FU could offer a better toxicity profile without affecting dose intensity or treatment outcome. We evaluated the toxicity and the activity of weekly cisplatin/paclitaxel with continuous infusion 5-FU in patients with recurrent and/or metastatic HNSCC.Methods A total of 44 patients were studied. Treatment consisted of two 6-week cycles with weekly cisplatin 20 mg/m2 and paclitaxel 60 mg/m2 and daily continuous infusion 5-FU 200 mg/m2 from day 1 to 42. Patients were evaluated for toxicity and response.Results 40 out of 44 patients were evaluable for response. After two cycles we observed seven complete responses (16%) and 12 partial responses (27%), with a 43% (95% CI 28–58%) overall response rate. Stable disease was seen in 13 patients (29%) and progressive disease in 12 patients (27%). Toxicity was mild in treated patients: we observed less than 10% of grade 3/4 hematological and gastroenteric toxicity.Conclusions A weekly schedule of cisplatin and paclitaxel associated with continuous infusion 5-FU showed low toxicity in the treatment of advanced HNSCC while significant activity was conserved.  相似文献   

19.
The combination of cisplatin and capecitabine was evaluated in patients with recurrent or unresectable squamous cell carcinoma of the head and neck (HNSCC), and outcome parameters were correlated with the expression of thymidine phosphorylase (TP), thymidilate syntetase (TS), vascular endothelial growth factor receptor (VEGFR) 1-3, and microvessel density (MVD). Patients with recurrent or unresectable HNSCC were eligible if they had received prior neoadjuvant chemotherapy, concurrent chemo-radiotherapy, or no prior systemic therapy. Patients received cisplatin (75 mg m(-2) day 1), and capecitabine (2000 mg m(-2) day 1-14) every 3 weeks. A total of 41 patients received 194 cycles. In all, 16 complete responses (39%) and 12 partial responses (29%) were documented, for an overall response rate of 68% (95% CI, 53-80%). Grade 3-4 uncomplicated neutropenia was documented in five subjects. Asthenia, anorexia, hand-foot syndrome, and constipation were the most frequent nonhaematologic events. Median progression-free and overall survival were 6.4 and 12.6 months. Cytoplasmic TP expression was more prevalent in patients with a laryngeal location vs other, and in patients with a recurrence vs primary disease. Microvessel density count was higher in patients with recurrent vs primary disease. The combination of cisplatin and capecitabine is effective in recurrent or unresectable HNSCC, and shows a manageable toxicity.  相似文献   

20.
Over the past decade important advances have been made in the treatment of locally advanced squamous cell carcinoma of the head and neck (SCCHN). Traditionally, chemotherapy has been incorporated in the treatment of SCCHN either before local treatment as induction, concomitantly with radiation, or following local treatment as adjuvant therapy. A number of randomized trials and meta-analyses have demonstrated that induction chemotherapy (usually based on the combination of cisplatin and 5-d continuous infusion of fluorouracil) followed by local treatment or concomitant chemoradiotherapy (CCRT) each prolongs survival and results in organ preservation in a significant number of patients. Survival rates appear to be higher when CCRT with cisplatin is used. Furthermore, accelerated fractionation radiation regimens have shown improved local control rates in randomized trials. Recently, new therapeutic strategies such as induction chemotherapy followed by CCRT or the incorporation of newer agents such as taxanes are under intense investigation and preliminary results are promising. Advances in molecular biology have led to the elucidation of molecular mechanisms that initiate and maintain the malignant phenotype in SCCHN. The identification of molecular targets has revolutionized our approach to cancer therapy and resulted in the introduction of novel targeted therapies. Cyclin-dependent kinases, the tumor suppressor p53 gene, and epidermal growth factor receptor are some of the molecular targets of such therapies in patients with SCCHN.  相似文献   

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