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[Non-surgical treatments of esophageal cancers].

INTRODUCTION: Despite improvements in surgical techniques and perioperative mortality, only slight improvements in the 5-year survival of patients with esophageal cancer have been observed in the last 20 years. Many patients with apparently localized cancer will have recurrences or metastatic disease despite surgery with curative resection. Consequently, multimodal therapies, including chemotherapy and radiotherapy, were introduced. This review outlines and critically analyzes current non-surgical treatments, including palliative care. CURRENT KNOWLEDGE AND KEY POINTS: Esophageal cancers appear to be chemosensitive but the median duration of response is short and toxicity consistent, especially in metastatic disease. Consequently, palliative chemotherapy should be offered preferably within a clinical trial. Chemotherapy as the only adjuvant treatment cannot be recommended outside clinical trials. Radiotherapy alone as a curative treatment has been proven to be inferior to chemoradiotherapy in inoperable tumors. Some data support the use of preoperative chemoradiotherapy, but randomized trials are conflicting. A pathological complete response has been identified as a favorable prognostic factor for survival. Self-expanding esophageal metal stents are a simple and effective palliative treatment of malignant dysphagia and can be considered as the reference treatment in patients with obstruction of the lower esophagus or with fistula. FUTURE PROSPECTS AND PROJECTS: Taxanes should be evaluated in randomized studies using chemotherapy or chemo-radiotherapy. Progress in radiotherapy, such as accelerated fractionation, greater radiation dose, and the addition of brachytherapy, will increase locoregional control and probably survival. The role of secondary surgery in patients responding to chemoradiotherapy still needs to be answered.

Brachytherapy↗

Lack of association between amplification of her-2 and response to preoperative taxanes in patients with breast carcinoma.

BACKGROUND: The objective of the current study was to determine whether her-2 amplification was associated with a pathologic response to preoperative chemotherapy with taxanes in patients with early-stage breast carcinoma. METHODS: The authors evaluated 71 patients treated for AJCC Stage II and III breast carcinoma with preoperative taxanes whose tissue specimens were still available. Fifty-seven patients (80%) had received paclitaxel and 14 (20%) had received docetaxel (4 cycles of either drug). Amplification of the her-2 gene was determined using fluorescence in situ hybridization. RESULTS: The median patient age was 49 years (range, 21-70 years). Forty-eight patients (68%) had Stage II breast carcinoma and 23 (32%) had Stage III disease. her-2 gene amplification was detected in 19 tumor specimens (28%). Hormone receptors (estrogen and/or progesterone) were detected in 11 her-2-positive tumor specimens (58%) and in 31 her-2-negative tumor specimens (85%). Eight pathologic complete responses (pCR; breast and axillary lymph nodes) occurred, 3 (16%) in patients with her-2-positive tumor specimens and five (10%) in patients with her-2-negative tumor specimens (P = 0.68). Twelve patients achieved pCR in the breast, 5 (26%) in patients with her-2-positive tumors and 7 (15%) in patients with her-2-negative tumors (P = 0.3). At a median follow-up of 61 months, none of the patients with a pCR developed recurrent disease, regardless of their her-2 status. The progression-free and overall survival rates were similar in both HER-2-positive and her-2-negative groups (P = 0.45 and P = 0.14, respectively). CONCLUSIONS: her-2 gene amplification was not found to be predictive of a pathologic response to preoperative taxanes in patients with early-stage breast carcinoma.

Adult↗

Plasmacytoid urothelial carcinoma of the bladder.

We report the first case of a pathological complete response for plasmacytoid urothelial carcinoma of the bladder. A 76-year-old man was diagnosed with plasmacytoid urothelial carcinoma (T4, N0, M0) by the microscopically plasmacytoid appearance of the specimen from the transurethral resection. Immunohistochemical studies were positive for epithelial markers and negative for lymphoid markers. Two cycles of systemic chemotherapy were performed with methotrexate, etoposide, vinblastine, and cisplatin, followed by radical cystectomy. The pathological examination revealed no residual cancer cells in the resected specimen.

Aged↗

FDG-PET and CT in Evaluation of Chemotherapy in Advanced Head and Neck Cancer.

Purpose: To compare [18F]2-deoxy-2-fluoro-D-glucose-positron emission tomography (FDG-PET) and computed tomography (CT) scans in assessment of response to neoadjuvant chemotherapy in advanced head and neck cancer.Materials and Methods: In a prospective clinical study, advanced head and neck cancer patients were enrolled in a neoadjuvant organ preservation protocol and received CT and FDG-PET scans prior to and after 2 or 3 rounds of chemotherapy. All patients had prechemotherapy and postchemotherapy tissue biopsies within the tumor region. Patients were then classified as pathologic complete response (PCR) or residual disease (RD) based on biopsies. Analysis of the tumor activity, using FDG-PET, was performed using standardized uptake ratios (SUR) in the region of the primary tumor. Analysis of the tumor size, using contrast enhanced CT, was performed using measurements of the primary tumor in 3 dimensions.Results: Nineteen of the 28 patients with stage III and IV cancer of the head and neck enrolled between December 1994 and May 1996 completed the study. Three patients were PCR and had a mean SUR reduction of 82% by positron emission tomography (PET) and volume reduction of 80% by CT. Sixteen patients had RD after chemotherapy, their SUR and volume reductions were 32% and 41%, respectively. Reduction in SUR with PET was significant. The mean tumor volume reduction by CT approached statistical significance. There was a positive correlation between the percent reduction in tumor volume and SUR (P < 0.004).Conclusion: FDG-PET and CT imaging are at least equivalent in correctly assessing tumor response to chemotherapy with a trend toward better performance by PET.

Journal Article↗

Integration of Gene Expression and Digital Histology to Predict Treatment-Specific Responses in Breast Cancer.

Deep learning models applied to digital histology can predict gene expression signatures (GES) and offer a low-cost, rapidly available alternative to molecular testing at the time of diagnosis. We optimized transformer-based models to infer GES results and applied this approach to pre-treatment H&E-stained biopsies from 1,940 breast cancer patients treated with neoadjuvant chemotherapy in clinical trial and real-world cohorts. The most predictive histology-derived GES for pathologic complete response (pCR) in the I-SPY2 trial was validated in four external cohorts: CALGB 40601, CALGB 40603, a trial of durvalumab plus CT, and standard-of-care CT-treated patients from the University of Chicago. Among HER2-negative patients, a transformer-based model trained using a signature composed of estrogen-regulated genes, proliferation, apoptosis, and interferon response genes predicted pCR with an AUC of 0.794, outperforming models based on clinical features alone (AUC 0.704, p = 0.001), pathologist TIL assessment, and a model trained directly to predict response from I-SPY2 cases. Tertiles of this signature stratify patients into clinically relevant groups with increasing likelihood of complete response, with pCR rates &#x2265;50% in the top tertile regardless of treatment or hormone receptor status. Additional transformer-based signature models predicted response to specific therapies (but not chemotherapy alone), including a HER2 signaling signature in IO-treated patients, and a claudin-low signature in bevacizumab treated patients. In HER2- cohorts with available gene expression data and histology, models trained on expression data performed similarly to digital histology predictions, but the combination of gene expression and histology outperformed histology alone. These findings suggest that histology-based GES provides additive information to RNA sequencing data and can inform precision treatment selection across breast cancer subtypes.

Journal Article↗

Liposomal doxorubicin with and without TNFalpha in the perfusional treatment of advanced soft tissue limb sarcoma: preliminary results.

BACKGROUND: A combination of doxorubicin and tumor necrosis factor alpha (TNFalpha) has been proven to be very effective in the perfusional treatment of advanced soft tissue limb sarcoma both in terms of tumor necrosis and limb conservative surgery rate. Unfortunately, in some patients a grade IV limb reaction has been recorded. The key solution might be the use of liposomal doxorubicin (Caelyx) because the carrier seems to release the drug preferentially in the tumor rather than in the healthy tissue. PATIENTS AND METHODS: Twenty patients were treated with Caelyx: 14 with Caelyx alone and 6 in combination with a low TNFalpha dose (1 mg). In the first series of 14 patients a dose escalation study was carried out starting from a dose of 10 mg/L of limb volume. Six patients were treated with Caelyx (16 mg) and TNFalpha (1 mg). RESULTS: The maximum tolerated dose (MTD) was 16 mg/L as in two patients treated with 18 mg/L a grade IV limb reaction was observed. Tumor response was satisfactory and conservative surgery was carried out in 13 patients. In 6 patients treated with Caelyx and TNFalpha, only a grade I limb reaction was recorded, thus, confirming that TNFalpha did not increase toxicity, at least at a dose of 1 mg. The Caelyx-TNFalpha combination did increase treatment efficacy. Tumor necrosis > or = 70% was observed in 4 out of 6 patients, one with 100% necrosis (pathological complete response). All the patients underwent conservative surgery. CONCLUSION: The Caelyx-TNFalpha combination was proven to increase the efficacy of Caelyx alone, with a very low toxicity. These preliminary results have to be tested in a larger patient population.

Adult↗

Pre-exenterative chemotherapy, a novel therapeutic approach for patients with persistent or recurrent cervical cancer.

BACKGROUND: Most cervical cancer patients with pelvic recurrent or persistent disease are not candidates for exenteration, therefore, they only receive palliative chemotherapy. Here we report the results of a novel treatment modality for these patients pre-exenterative chemotherapy- under the rational that the shrinking of the pelvic tumor would allow its resection. METHODS: Patients with recurrent or persistent disease and no evidence of systemic disease, considered not be candidates for pelvic exenteration because of the extent of pelvic tumor, received 3-courses of platinum-based chemotherapy. Response was evaluated by CT scan and bimanual pelvic examination; however the decision to perform exenteration relied on the physical findings. Toxicity to chemotherapy was evaluated with standard criteria. Survival was analyzed with the Kaplan-Meier method. RESULTS: Seventeen patients were studied. The median number of chemotherapy courses was 4. There were 9 patients who responded to chemotherapy, evaluated by bimanual examination and underwent pelvic exenteration. Four of them had pathological complete response. Eight patients did not respond and were not subjected to surgery. One patient died due to exenteration complications. At a median follow-up of 11 months, the median survival for the whole group was 11 months, 3 months in the non-operated and 32 months in those subjected to exenteration. CONCLUSION: Pre-exenterative chemotherapy is an alternative for cervical cancer patients that are no candidates for exenteration because of the extent of the pelvic disease. Its place in the management of recurrent disease needs to be investigated in randomized studies, however, its value for offering long-term survival in some of these patients with no other option than palliative care must be stressed.

Adult↗

[HPV-infection in esophageal cancer as possible predictive factor after neoadjuvant therapy].

BACKGROUND: Human papilloma virus (HPV) infection in oesophageal cancer cases was found 0-67% depending on different methods and geographical variances. Complete pathological response was in 30% of cases after neoadjuvant chemo-radiation (CRX). The aim of this study was to discover a possible relation between HPV-infection and response. MATERIAL AND METHODS: DNA was extracted from 26 oesophageal cancer patients undergoing CRX and surgery. PCR and Southern Blot hybridisation was used to detect HPV-infection (HPV-16 and -18). Clinicopathological parameters and disease-free survival and overall survival was also analysed. RESULTS: Complete response (26.9%) and partial response (38.5%) after CRX was correlated significantly with better prognosis. 6 patient had HPV-infection (3 from CR- and 3 from PR-group). CONCLUSIONS: There was a correlation between HPV-infection and response, but further analysis is necessary. Both responder-groups had significantly better prognosis than non-responders.

Antineoplastic Agents↗

Neoadjuvant chemoradiation versus hyperfractionated accelerated radiotherapy in locally advanced rectal cancer.

BACKGROUND: Neoadjuvant therapy is increasingly used in resectable locally advanced rectal cancer. The exact role of the addition of chemotherapy is not established. We compared neoadjuvant therapy using chemoradiation (CRT) or hyperfractionated accelerated radiotherapy (HART). METHODS: Clinical, pathological, and survival data were obtained from patients with resectable stage II or III rectal cancer within 7 cm from the anal verge. A group of 50 patients was treated with a preoperative dose of 41.6 Gy of radiotherapy (RT) in two daily fractions of 1.6 Gy over 13 days immediately followed by surgery (HART). A second group of 96 patients received 45 Gy of conventionally fractionated RT in 25 daily fractions of 1.8 Gy combined with 5-fluorouracil-based chemotherapy followed by surgery within 4 to 6 weeks (CRT). Both groups were compared in terms of morbidity, pathological downstaging, local recurrence, and survival. RESULTS: Both groups were comparable in terms of preoperative clinicopathological variables. The mean distance from the anal verge was 5.8 cm (HART) versus 4.9 cm (CRT). Sphincter preservation was possible in 74% (HART) versus 83.5% (CRT) of patients (P = .013). The clinical anastomotic leak rate was 2% (HART) versus 2.2% (CRT). Pathological complete response was observed in 4% (HART) versus 18% (CRT) of the resected specimens (P = .002). A pelvic recurrence developed in 6% (HART) versus 4.4% (CRT) of patients (P = .98). Overall 5-year survival was 58% (HART) versus 66% (CRT) (P = .19); disease-free 5-year survival was 51% (HART) versus 62% (CRT) (P = .037). CONCLUSIONS: Compared with preoperative HART followed by immediate surgery, preoperative CRT followed by a 6-week waiting period enhances pathological response and increases sphincter preservation rate. This could be explained by the addition of chemotherapy or the longer interval between neoadjuvant therapy and surgery. No statistically significant difference was observed in local control or overall survival.

Antineoplastic Combined Chemotherapy Protocols↗

Neoadjuvant chemotherapy, radical resection with intraoperative radiation therapy (IORT): improved treatment for gastric adenocarcinoma.

BACKGROUND: Adenocarcinoma of the stomach and gastroesophageal junction results in substantial morbidity, locoregional recurrence, and death. Surgical procedures, even with adjuvant therapy, have not significantly improved survival. This study evaluated the toxicity, response rate, locoregional control, and survival of patients with locally advanced gastric cancer that was treated with neoadjuvant multimodality therapy. METHODS: Patients with stage IIIA or early stage IV gastric adenocarcinoma received neoadjuvant 5-fluorouracil, Leucovorin, Adriamycin, and Cisplatin and underwent gastrectomy or esophagogastrectomy with intraoperative radiotherapy (IORT; 1000 cGY) to the gastric bed and postoperative radiation therapy. RESULTS: Nine of 15 patients (60%) with transmural extension and/or nodal metastases received IORT. There were 2 pathologically complete responses at the primary site. Eleven of 15 patients (73%) had tumor in perigastric lymph nodes; however, 9 of 15 patients (60%) had mucin-filled nodes without tumor cells. Neoadjuvant treatment did not increase operative morbidity rates. Ten of 15 patients (67%) remain free of disease (median, 27 months; range, 6-60 months). Five patients died 13 to 41 months (median, 17 months) after diagnosis. CONCLUSIONS: Neoadjuvant multimodality therapy with neoadjuvant 5-fluorouracil, Leucovorin, Adriamycin, and Cisplatin, radical resection with IORT, and postoperative radiation therapy is safe, can downstage tumors, provides improved locoregional control, and appears to cause significant tumor regression that may result in long-term survival or cure.

Adenocarcinoma↗

A case of complete response to esophageal cancer by a novel concurrent chemoradiation therapy.

BACKGROUND/AIMS: A combination of chemotherapy and radiotherapy (chemoradiation therapy) has recently been developed for the treatment of non-operable esophageal cancer patients. Chemoradiation therapy is based on the concept of biochemical modulation effects and radiosensitizing effects of chemotherapeutic agents. However, the optimal choice of chemotherapeutic agents and their doses, as well as chemotherapy and radiotherapy regimens have not been precisely established. METHODOLOGY: Based on our recent experience of an effective chemoradiation therapy protocol which consisted of 5-fluorouracil (5-FU) combined with daily concurrent cisplatin and radiation, in addition to the recent knowledge on the biochemical modulation between 5-FU and cisplatin or between leucovorin and 5-FU, we have developed a complete daily concurrent chemoradiation therapy for non-operated esophageal cancer as a treatment modality with curative intent. RESULTS: We report here a novel intensive concurrent chemoradiation protocol by which complete response could be achieved. A low dose of 5-FU (250 mg/body/day) was continuously infused over 24 hours followed by leucovorin (30 mg/body), and a low dose of daily cisplatin (5 mg/body) was administered 1 hour before radiotherapy (2 Gy/day). The administration schedule was 5 consecutive days, followed by a 2-day withdrawal, and then repeated weekly for 4 weeks. CONCLUSIONS: Our completely daily concurrent chemoradiation therapy is rational, effective, and safe, because an endoscopically and pathologically complete response without severe side effects was able to be achieved and this has continued for at least 6 months after chemoradiation therapy. Therefore, we believe that our completely daily concurrent chemoradiation therapy can be recommended for non-operated esophageal cancer patients.

Adenocarcinoma↗

Chemotherapy of oesophago-gastric cancer.

Oesophageal and gastric cancers are common tumors that represent a number of challenges for oncologists, gastroenterologists and surgeons. The prognosis remains poor with the majority of patients presenting with advanced disease. Combined chemotherapy and radiotherapy has demonstrated a survival benefit in patients with loco-regional oesophageal cancer compared to radiotherapy alone. In an interim analysis we have observed a 62% response rate using a chemoradiation regimen based on protracted venous infusion of 5-fluorouracil and cisplatin combined with radiotherapy in patients with inoperable oesophageal cancer. Improved outcomes with loco-regional disease has rekindled interest in preoperative therapy. In a trial comparing preoperative chemoradiation to surgery alone in patients with operable oesophageal adenocarcinoma, survival was improved with multimodality treatment. In addition, a study including both adeno- and squamous carcinomas demonstrated a trend towards improved survival. A complete pathological response to chemoradiation was associated with significantly improved survival. Gastric cancer is one of the most chemosensitive solid tumors of the gastrointestinal tract with the majority of patients being suitable for palliative chemotherapy. The ECF (epirubicin, cisplatin, protracted venous infusion 5-fluorouracil) regimen was developed in the Gastrointestinal unit of the Royal Marsden Hospital and first reported in 1991. In a prospective randomised trial including 274 patients ECF has been compared with the standard combination of 5-fluorouracil, adriamycin and methotrexate (FAMTX) in patients with previously untreated gastric cancer. Overall response rate, failure-free and overall survival were significantly improved with ECE, ECF also demonstrated improved quality of life and cost effectiveness when compared to the FAMTX regimen. ECF should now be regarded as the standard treatment for advanced oesophago-gastric cancer against which new therapies should be compared. In addition the Medical Research Council are conducting a trial randomising patients between surgery alone and perioperative chemotherapy using the ECF regimen in operable gastric cancer.

Antineoplastic Agents↗

Complete response of a highly advanced gastric carcinoma to preoperative chemoradiotherapy with S-1 and low-dose cisplatin.

S-1 has been developed as a new oral anticancer drug, based on the biological modulation of 5-fluorouracil. We report a patient with highly advanced gastric carcinoma who was treated successfully with a new combination chemoradiotherapy using S-1 and cisplatin (CDDP). The patient was a 37-year-old man who was diagnosed with advanced gastric carcinoma (T4N3M0) that had invaded the diaphragm and the paraaortic tissues. Remarkable tumor reduction was observed in the primary tumor and metastatic lymph nodes around the stomach after three cycles of the therapy. Radiological examination before surgery determined that a partial response (PR) had been achieved by the initial therapy. Adverse effects included only a gastrointestinal disorder that was limited to grade 2 when low-dose CDDP was utilized in the regimen, while an initial high dose of CDDP resulted in grade 3 toxicity, due to myelosuppression. The patient underwent curative surgery, including total gastrectomy, D2 lymph node dissection, and splenectomy, after completion of the radiochemotherapy regimen. No surgical complication was observed. No tumor cells were detected by pathological evaluation of the resected stomach and all the regional lymph nodes, confirming a pathological complete response (CR; grade 3). This regimen is a potent treatment for advanced gastric carcinoma, especially when used as preoperative chemotherapy to control cancer cells.

Adult↗

Breast conservation after neoadjuvant chemotherapy for stage II carcinoma of the breast.

BACKGROUND: Neoadjuvant chemotherapy has become the standard treatment for stage III breast cancer. Gratifying results in these patients prompted this prospective, nonrandomized study of neoadjuvant chemotherapy in stage II breast cancer. This study presents our experience with neoadjuvant chemotherapy in 127 patients with stage II carcinoma of the breast. STUDY DESIGN: Patients with stages IIA (T > 3.0 cm) and IIB carcinoma were considered for this study and underwent treatment with cyclic chemotherapy until a plateau of response was achieved. Responders underwent breast conservation or mastectomy according to conventional assessment. Chemotherapy was continued in the adjuvant setting. Survival data were compared with historic controls. RESULTS: Between 1981 and 2001, 127 women between the ages of 22 and 80 years (mean age 52, median age 50), with stage II breast cancer were enrolled, with median followup of 60 months. One hundred twenty-two patients (96.1%) responded to chemotherapy. Of this group, 35 (29.2%) experienced complete pathologic responses or had only microscopic foci of disease after treatment. Sixty-two patients (52.5%) had negative lymph nodes at the time of the operation; 28 of these patients were previously considered N-1 clinically. Seventy-six patients (62%) underwent breast conservation. Overall survivals at 5 years for stage IIA and IIB disease were 94.7% and 88%, respectively. Disease-free survival at 5 years was 85.2% for stage IIA patients and 69.1% for stage IIB patients. CONCLUSIONS: Neoadjuvant chemotherapy can be effectively applied to patients with stage II disease, and breast conservation becomes feasible in the majority of patients. When compared with historic controls, the current study suggests a statistically significant overall survival advantage (p < 0.007) at 5 years.

Antineoplastic Combined Chemotherapy Protocols↗

P53 gene protein overexpression predicts results of trimodality therapy in esophageal cancer patients.

BACKGROUND: P53 protein overexpression in esophageal cancer and its correlation with response and survival after chemoradiation was retrospectively investigated. METHODS: Pretreatment and resection specimens were stained by automatic p53 immunohistochemical staining technique. RESULTS: P53 was expressed in 84.0% of esophagoscopy (EGD) biopsies; 71.4% of patients with metastasis of thoracoscopy/laparoscopy lymph nodes (TS/LS LN) identified by hematoxylin/eosin (H/E) were p53 (+); 14.2% of patients with negative TS/LS LN by H/E were p53 (+). Eleven out of 18 patients with p53 (+) in pretreatment EGD remained p53 (+) after chemoradiation; 38.8% of these patients had a pathological complete response (pCR). The median survival of this group was 15 months. Of 4 patients with p53 (-) pretreatment EGD, all of those were still p53 (-) after chemoradiation; 75% of these patients had pCR. The median survival was 30 months. In patients with p53 (+) TS/LS LN, 23% had a pCR after chemoradiation with a median survival of 16 months. In patients with p53 (-) TS/LS LN, 50.0% had a pCR with a median survival of 31.5 months. CONCLUSIONS: P53 protein overexpression in pretreatment EGD and TS/LS LN may predict response to chemoradiation and survival in esophageal cancer patients.

Adenocarcinoma↗

A potential role for intensive chemotherapy in the treatment of small cell neuroendocrine tumors of the cervix.

Small cell neuroendocrine (SCNE) tumors of the cervix constitute a group of malignancies with a predilection for early systemic metastasis which likely contributes to the poor outcome reported to date. Histologic and immunocytochemical similarities exist between SCNE cervical tumors and small cell (oat cell) tumors of the lung. Notable clinical responses to chemotherapy have been reported in both small cell lung tumors and in poor-risk squamous cervical cancers, suggesting the potential for a similar role in the management of SCNE cervical tumors. In this report, four cases are described in which intensive chemotherapy with etoposide, doxorubicin, and cisplatin was used in patients with SCNE tumors. Marked reduction in tumor volume was a feature in three evaluable patients, two of whom received neoadjuvant therapy (one complete and one near-complete pathologic response). The fourth patient received adjuvant chemotherapy and remains without evidence of disease 47 months from diagnosis. Management details of each case have been provided along with a review of the use of chemotherapy in SCNE cervical tumors.

Adult↗

A case of rapidly growing ovarian squamous cell carcinoma successfully controlled by weekly paclitaxel-carboplatin administration.

BACKGROUND: Primary squamous cell carcinoma of the ovary is uncommon and has a poor prognosis. Because of its rarity, the effective postoperative treatment is unknown. We describe a remarkable response of this tumor to weekly paclitaxel-carboplatin administration. CASE: A 53-year-old woman had rapidly growing primary squamous cell carcinoma of the ovary that metastasized to the abdominal wall and transverse colon after maximum cytoreductive surgery. The tumor was resistant to primary chemotherapy with cisplatin, vincristine, mitomycin C, and bleomycin. A combination of paclitaxel and carboplatin was used for second-line chemotherapy and was repeated every week. The patient tolerated the chemotherapy well and demonstrated a pathological complete response in the abdominal metastases following the five courses of chemotherapy. CONCLUSION: Weekly paclitaxel-carboplatin administration may be a safe and effective treatment for advanced and rapidly growing ovarian squamous cell carcinoma with primary resistance to chemotherapy.

Abdominal Neoplasms↗

Neoadjuvant chemotherapy in stage X ovarian carcinoma.

Seventeen patients with presumed advanced ovarian cancer were treated initially with platinum-based chemotherapy. All patients had either cytologic or histologic findings consistent with an ovarian adenocarcinoma. Eight patients subsequently had surgery: one patient had a complete pathological response and one patient had microscopic disease; both are alive without evidence of disease. Five patients were surgically debulked to less than 1 cm, and one patient had large residual disease after surgery. Four of these patients are alive with disease and one died of disease. Nine patients did not have surgery; two patients had no response to chemotherapy and four patients had stabilization of disease. These six patients have died. Two patients had initial partial responses and are alive with disease. One patient with a complete clinical response at autopsy was without evidence of disease. The follow-up ranged from 7 to 109 months; the median survival was 15 months. Comparison of these 17 patients with 21 patients with stage IV disease and 38 suboptimally debulked patients with stage III disease treated during the same period with aggressive surgery followed by chemotherapy revealed no statistical difference in overall survival between these 17 patients and the two groups of patients. The postoperative hospital stay and complication rate were significantly lower for the 9 patients who had surgery than for the 21 patients with stage IV disease. This report suggests that in patients with presumed ovarian cancer and significant medical problems or with a priori nondebulkable tumor, initial chemotherapy and then surgery should be considered.

Antineoplastic Combined Chemotherapy Protocols↗