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Exercise and pathologic complete response to cancer treatment: a systematic review and meta-analysis.

PURPOSE: Neoadjuvant chemotherapy (NACT) is a commonly recommended approach for treating several cancers, and improving patients' outcomes to this therapy is important. This systematic review and meta-analysis assessed the impact of exercise on pathologic complete response (pCR), a key short-term marker of treatment efficacy, in patients with solid tumors receiving NACT. METHODS: Four electronic databases were searched for randomized controlled trials with physical exercise during NACT as an intervention published until May 2025. Risk of bias was assessed using Cochrane RoB 2.0 and the TESTEX scale. A random-effect meta-analysis using the inverse variance method synthesized the results. Heterogeneity was assessed using I2 and chi2 statistics. Risk ratio estimated the effect size. RESULTS: Eight studies involving 504 patients with breast, esophageal, gastric, or rectal cancer were included in the final analysis. Exercise interventions consisted of aerobic and resistance exercise. Overall, there were no significant differences between exercise and control groups in the rate of pCR to NACT (pooled risk ratio: 1.08 (95% CI: 0.82 to 1.43) Z = 0.56, p = 0.58). However, meta-regression data from breast cancer (BC) studies (4 studies, 367 participants) suggest exercise may be associated with enhanced tumor response to NACT in HR + /HER2- subtypes (regression coefficient: 0.83 (95% CI: -0.00 to 1.67), p = 0.05). CONCLUSION: Exercise during NACT did not improve pCR across cancer types. Exploratory meta-regression findings suggest a possible benefit of exercise in BC patients with the HR + /HER2- subtype. These results should be interpreted with caution due to the small number of studies and low certainty of the evidence.

Humans

Pathologic complete response of advanced ovarian mixed mesodermal tumor to cisplatin, adriamycin and dacarbazine: a case report.

Presented is a case report of a stage IIIC primary ovarian mixed mesodermal tumor with gross residual disease following aggressive cytoreductive surgery. Following twelve courses of Cisplatin, Adriamycin and Dacarbazine, second-look laparotomy confirmed a pathologic complete response. The patient is now free of disease at 17+ months.

Antineoplastic Combined Chemotherapy Protocols

Chemotherapy versus radiotherapy in the management of ovarian cancer patients with pathological complete response or minimal residual disease at second look.

The management of patients with epithelial ovarian cancer with no or minimal residual disease at second-look laparotomy after aggressive surgery and platinum-based chemotherapy has not been definitively established. We report the results of a randomized study comparing three more courses of the same chemotherapy inducing the response (21 patients) with whole-abdomen radiotherapy (20 patients). Thirty-eight patients responded to first-line chemotherapy and three had stabilization of disease. In eight patients tumor debulking was performed at second-look laparotomy. No severe toxic effects were noted in both arms. Bowel obstruction occurred in one patient treated with radiotherapy. At a median follow-up of 22 months, 11 of 20 patients in the radiotherapy arm and 6 of 21 in the chemotherapy arm progressed and 9 and 3 patients died, respectively. Although the number of randomized patients is small we stopped the trial because of the survival and progression-free survival advantage of chemotherapy-treated patients.

Antineoplastic Combined Chemotherapy Protocols

[A case of testicular choriocarcinoma achieving pathological complete response by "COMPE" chemotherapy, consisting of cisplatin, vincristine, methotrexate, peplomycin, and etoposide].

We report a case of pure choriocarcinoma of the left testis in a 27-year-old male. He consulted a physician with left back pain in August, 1990. Intravenous pyelography (IVP) revealed left hydronephrosis. Abnormal computerized tomography (CT) revealed para-aortic lymph node swelling. The chest X-ray revealed bilateral multiple coin lesions. The genital examination revealed a left testicular nodule 8 mm in diameter. Left high inguinal orchiectomy was performed. Histopathological diagnosis was pure choriocarcinoma. After 4 courses of the PVB (cisplatin, vinblastine, bleomycin) therapy, tumor regression rate of the pulmonary metastases was 41.9%. He was transferred to our hospital on December 3, 1990 and was admitted 3 days later. "COMPE" chemotherapy, consisting of cisplatin, vincristine, methotrexate, peplomycin, and etoposide, was administered. After seven courses of "COMPE" chemotherapy, he achieved a partial response (the regression rate of the pulmonary metastases and the retroperitoneal lymph node metastasis were 78.8% and 69.1%, respectively) and the residual masses in the lungs and the retroperitoneum were removed. Necrosis and xanthogranulomatous fibrosis were found in the resected material. The patient showed no evidence of disease one year after thoracotomy.

Adult

Neoadjuvant intra-arterial chemotherapy in the treatment of advanced transitional cell carcinoma of the bladder: results and followup.

The long-term results of regional chemotherapy plus intra-arterial cisplatin with or without doxorubicin as an adjuvant before cystectomy and urinary diversion in patients with invasive transitional cell carcinoma of the bladder were evaluated. A total of 27 patients with T3aNxMo (8), T3bNxMo (14) and T4NxMo (5) disease participated in a phase II trial completed in 1985. Of the patients 19 received cisplatin and doxorubicin intra-arterially, and cyclophosphamide intravenously, and the remaining 8 received 70 to 100 mg. per m.2 cisplatin intra-arterially. A total of 19 patients underwent cystectomy after chemotherapy. Patients in this group had a pathological complete response (no evidence of disease after surgical restaging) or the presence of residual disease at operation that could (surgical complete response) or could not (pathological partial response) be completely resected. Of the 19 patients undergoing cystectomy surgical complete response was observed in 47.4%, pathological complete response in 26.3% and pathological partial response in 26.3%. At a median followup of 27 months for the group 66% of the patients with a surgical complete response, 100% with a pathological complete response and 40% with a pathological partial response were alive with no evidence of disease. The over-all survival for patients with a pathological or surgical complete response is 76.9%. In the patients not operated upon because of persistent or advanced disease after chemotherapy survival was brief (less than 4 months). Prolonged survival in patients achieving a pathological or surgical complete response with neoadjuvant chemotherapy occurs, and this modality may have a role in patients with invasive tumors.

Aged

Evaluation of pre- and postoperative chemotherapy for resectable adenocarcinoma of the esophagus or gastroesophageal junction.

Thirty-five consecutive patients with resectable adenocarcinoma of the esophagus or gastroesophageal junction were treated with two preoperative and three or four postoperative chemotherapy courses consisting of etoposide, fluorouracil, and cisplatin (EFP) to evaluate the rate of curative resection, clinical and pathologic response, toxic effects, and survival. One hundred thirty-seven courses with a median number of five courses (range, one to six) were administered. Preoperative EFP resulted in 17 (49%) major responses, including six patients who did not have carcinoma cells in the repeat endoscopic biopsy specimens and cytologic brushings. Among 32 patients who had surgery, 25 (78%) had curative resection, one patient had a complete pathologic response, and one had microscopic carcinoma in the resected specimen. Six patients had microscopic carcinoma at the resection margins and received postoperative radiotherapy. At a median follow-up of 20 months, the projected survival of 35 patients is 23 months (range, 6 to 33+). Fifteen patients died of their carcinomas, and 15 patients were alive (median follow-up, 20+ months; range, 15+ to 33+ months) with no evidence of relapse. There were no deaths related to chemotherapy, surgery, or radiotherapy. EFP-induced toxic reactions were moderate. Our data suggest that multiple courses of EFP are feasible. Future strategies for this disease should consider prolonged chemotherapy with regimens that result frequently in pathologic complete responses.

Adenocarcinoma

Preoperative radiotherapy for muscle-invasive bladder carcinoma. Long term follow-up and prognostic factors for 338 patients.

BACKGROUND: This study was performed to determine the importance of various potential prognostic factors in a large cohort of patients with transitional cell carcinoma of the bladder who were treated relatively uniformly at a single institution. METHODS: Between 1960 and 1983, 338 patients with muscle-invasive bladder carcinoma received preoperative radiotherapy (50 Gy in 25 fractions) followed 4-6 weeks later with radical cystectomy. Lymph node sampling was performed only when suspicious adenopathy was encountered. Ninety-eight percent of the patients completed the treatment as planned. The median followup for those living was 90 months. RESULTS: Actuarial 5-year pelvic control, disease free, and overall survival rates were 84, 51, and 44%, respectively, for all patients, and 88, 58, and 50%, respectively, for those who treatment completed. The overwhelming majority of failures were from distant metastases (43% at 5 years). The pathologic complete response rate was 42%, and downstaging was seen in 65% of the patients. Univariate actuarial analyses revealed clinical stage, clinical perivesical extension, tumor size, pretreatment hemoglobin level, pretreatment blood urea nitrogen (BUN) concentration, results of intravenous pyelography, sex, age, pathologic response, and pathologic complete response, correlated with disease outcome. A Cox proportional hazards model showed pathologic response (P < 0.0001), clinical stage (P = 0.01), hemoglobin level (P < 0.02), pathologic complete response (P < 0.05), and BUN concentration (P < 0.05), were correlated significantly with pelvic control. When only pretreatment factors were analyzed, clinical stage, hemoglobin level, and BUN concentration remained the only factors predictive of pelvic control. Similar results were obtained when overall survival was used as the endpoint, except that pathologic complete response and BUN concentration were replaced by sex as significant covariates. A Cox proportional hazards model using disease free status as the endpoint revealed pathologic response and tumor size to be independent predictors of patient outcome. Restricting this analysis only to pretreatment factors showed that pretreatment hemoglobin and tumor size were the only factors correlated with disease free status. CONCLUSIONS: The most significant prognostic factor was pathologic response, which correlated highly with all disease endpoints investigated. The most consistently significant pretreatment factors were hemoglobin level and clinical stage, although tumor size, sex, and BUN concentration also were independent predictors of patient outcome. These factors should be considered in patients receiving radiotherapy for bladder preservation.

Carcinoma, Transitional Cell

Long-term prognosis following macroscopic complete response at second-look laparotomy in advanced ovarian cancer patients treated with platinum-based chemotherapy. The Gruppo Oncologico Nord Ovest.

Survival (S) and progression-free survival (PFS) were evaluated in 129 advanced ovarian cancer patients, who achieved a macroscopic complete response (112 pathological complete response and 17 microscopic disease) at second-look after platinum-based combination chemotherapy with or without doxorubicin (DX). The impact on S and PFS of age, performance status (PS), stage, histology, grade (G), residual disease after first surgery (RD), chemotherapy regimen, disease status at second-look and consolidation therapy were evaluated by univariate and multivariate analysis. In the 118 months observation period, median S and PFS were 81 and 34 months, respectively. Stage, G, RD, PS and disease status at second-look had significant impact on both S and PFS in univariate analysis, whereas consolidation therapy did not influence outcome. Cox's regression analysis showed that G, RD and PS had an independent impact on PFS. Test for interaction demonstrated no statistically significant relationship between RD, chemotherapy regimen and outcome. In conclusion, advanced ovarian cancer patients with macroscopically complete remission at second-look have a substantial risk of relapse after aggressive treatment. The risk of recurrence was estimated to be maximal in the first 3 years after restaging, and was correlated with poor PS, RD > 2 cm after first surgery and undifferentiated tumour.

Adult

Response to second-line weekly cisplatin chemotherapy in ovarian cancer previously treated with a cisplatin- or carboplatin-based regimen.

Response to a second-line weekly cisplatin chemotherapy in ovarian cancer previously treated with cisplatin- or carboplatin-based regimens was analysed in a clinical series observed between 1984 and 1991. Women who achieved pathological complete response or pathological optimal partial remission after first-line cisplatin- or carboplatin-based regimens were treated at recurrence or progression, occurring at least 4 months after first-line treatment, with second-line chemotherapy. A total of 72 women were included in the analysis. Second-line chemotherapy regimens were: cisplatin 1 mg/kg weekly for seven courses plus epirubicin 70 mg/m2 intravenously (i.v.) every 3 weeks for three courses (28 subjects), cisplatin 1 mg/kg plus etoposide 90 mg/m2 i.v. weekly for a total of seven courses (11 subjects) and cisplatin 1 mg/kg weekly for nine courses plus carboplatin 250 mg/m2 every 3 weeks for three courses (33 subjects). Of the 72 women, 22 (31%, 14 clinical, 8 pathological) had a complete response and 28 (39%), a partial response (24 clinical, 4 pathological). The 24-month cumulative survival probability was 63% in women with complete response, 32% in those who had partial response, but all the 22 non-responders died within 24 months from diagnosis of recurrence (log rank test P < 0.05). The frequency of complete response and partial response increased with the interval between first diagnosis and recurrence: among the 33 women who had recurrent disease to < 18 months from first diagnosis, complete response or partial response was obtained in 20 (61%) subjects, this figure was 67% (14 out of 21 women) among subjects who had recurrent disease between 18 and < 36 months from first diagnosis and 89% (16/18) among those who had recurrence > or = 36 months. In comparison with women who had recurrence 4- < 18 months from first diagnosis, the OR of response was 1.3 (95% CI 0.4-4.1) for those who had recurrence between 18 and < 36 and 5.2 (95% CI 1.1-24.3) for those who had recurrence > or = 36 months from surgery (chi 1(2) trend p < 0.05). Survival rate after the end of second line chemotherapy for women who relapsed 4- < 18 months, 18- < 36 or 36 months or more after surgery were, respectively, 24, 20 and 67% (log rank test, P < 0.05). Age at first diagnosis, histology, stage, and grading of the disease at first diagnosis and site of recurrence were not associated with response to second-line therapy.

Antineoplastic Combined Chemotherapy Protocols

Therapeutic experience of the North-West Oncology Group (GONO) on ovarian carcinoma.

The North West Oncology Group is a cooperative group that has carried out several clinical trials on the treatment of ovarian carcinoma in the last 10 years. In a randomized study of advanced ovarian carcinoma patients, the combination of cisplatin plus cyclophosphamide (PC) came out as superior to cisplatin plus cyclophosphamide plus doxorubicin in terms of complete clinical and pathological response rates and 8-years progression free survival (PFS). A randomized trial showed that PAC and cyclophosphamide plus doxorubicin plus carboplatin (CAC) were equivalent in terms of objective response (OR) rates, pathologic complete response (pCR) rates, median survival (S) and median PFS. After PAC or CAC therapy, patients with pCR or minimal residual disease were included in a randomized trial comparing abdominopelvic radiotherapy (RT) versus 3 more courses of the chemotherapy they had received before. This study was stopped early because of a clear advantage in S and PFS for chemotherapy arm. Patients with macroscopic residual disease at second-look surgery and patients with progressing or relapsing disease after first line chemotherapy crossed to an alternative analogue: from PAC to carboplatin and from CAC to cisplatin. An OR was obtained in 25% of the patients of the cisplatin arm and in only 9% of the patients of carboplatin arm. Randomized clinical trials analyzing the role of intraperitoneal administration of chemotherapy and the role of biological response modifiers such as interferons in the treatment of patients with advanced epithelial ovarian carcinoma are currently ongoing.

Antineoplastic Combined Chemotherapy Protocols

Response-adapted surgical de-escalation following neoadjuvant immunotherapy in resectable mucosal HNSCC A systematic review and meta-analysis.

INTRODUCTION: Recent encouraging outcomes with neoadjuvant immune checkpoint inhibitors (ICIs) in mucosal head and neck squamous cell carcinoma (HNSCC) have generated interest in surgical de-escalation. However, the oncologic safety of response-adapted surgery (RAS) and its ability to achieve survival outcomes comparable to baseline-planned surgery (BPS) remain uncertain. METHODS: A systematic search of the PubMed, EMBASE, Cochrane Library, and the Clinical Trials Registry for studies of neoadjuvant ICIs, with or without chemotherapy, in resectable mucosal HNSCC, that explicitly report surgical extent, between 2020-2025 was performed. Two independent reviewers extracted data following PRISMA guidelines. Main outcomes included major pathologic response (MPR), pathologic complete response (pCR), event-free survival (EFS), and overall survival (OS). Study-level proportions were pooled by random effects models. Heterogeneity was assessed by the I2 statistic. RESULTS: The comparative analysis consisted of 4 RAS studies (involving 202 patients) and 11 BPS studies (403 patients). The pooled overall EFS was 83.3% (76.9-88.2) for the former and 82% (75.2-87.2) for the latter (P=.751), and the respective pooled OS was 92.3% (87.5-95.3) and 91.4% (80.3-96.5) (P=.839). The pooled pCR rate was 41.7% (95% CI 5.4-48.4; I2=.0) for RAS and 19.8% (95%CI 13.3-29.6; I2=.62) for BPS (P=.001), while the MPR was not significantly different (59.6%, versus 48.5%, P=.245). RAS was associated with greater organ preservation and reduced need for mandibulectomy and free-flap reconstruction. CONCLUSIONS: RAS following neoadjuvant ICIs in mucosal HNSCC may enable surgical de-escalation with preserved oncologic outcomes and improved function in selected patients. Larger prospective studies are warranted.

Humans

Dose-intensive induction therapy with cyclophosphamide, cisplatin, and consolidative abdominal radiation in advanced-stage epithelial ovarian cancer.

PURPOSE: The primary goal of this trial was to evaluate the clinical activity of a high-dose cisplatin-based induction regimen for women with advanced-stage ovarian cancer. A secondary goal was to assess the use of whole-abdominal radiation as consolidative therapy in the subset of women left with less than 5 mm residual disease after completion of chemotherapy. PATIENTS AND METHODS: Fifty consecutive patients with newly diagnosed, advanced-stage ovarian cancer received cisplatin 40 mg/m2/d and cyclophosphamide 200 mg/m2/d intravenously (IV) for 5 days, every 4 to 6 weeks. After three to four cycles of chemotherapy, patients who still had residual disease less than 5 mm in greatest diameter at second-look surgery were given whole-abdominal radiotherapy. RESULTS: The overall response rate in 49 patients assessable for response was 61.3% (24.5% pathologic complete responses [pCRs], 32.7% pathologic partial responses [pPRs], and 4.1% clinical partial responses [cPRs]). Median survival for all patients was 23.4 months, and actuarial 4-year survival was 33.7% (95% confidence interval [CI], 21.8% to 48.1%). Multivariate analysis showed stage III and serous histology as independent favorable prognostic factors for survival. Median survival for stage III patients was 36.5 months, with an actuarial 4-year survival of 41.6% (95% CI, 25.5% to 59.6%). Median survival for stage IV patients was 12.0 months, with actuarial 4-year survival of 22.9% (95% CI, 9.5% to 45.5%). The major acute toxicities encountered were myelosuppression and peripheral neuropathy. Patients who received consolidative radiotherapy were at increased risk of developing late-onset enteropathy. CONCLUSIONS: This regimen is active against advanced-stage ovarian cancer, but the associated toxicity is severe. Consolidative whole-abdominal radiation did not appear to prolong survival in the subset of women left with less than 5 mm residual disease after chemotherapy.

Adolescent

The effect of systemic therapy on local-regional control in locally advanced breast cancer.

One hundred and seven patients with locally advanced breast cancer were prospectively referred for multimodality treatment on protocol using chemohormonal therapy to maximal response followed by local treatment and maintenance therapy. Forty-eight patients (45%) were diagnosed with Stage IIIA disease, 46 (43%) with Stage IIIB inflammatory cancer, and 13 (12%) with Stage IIIB non-inflammatory disease. Induction therapy consisted of cyclophosphamide, doxorubicin, methotrexate, and 5-fluorouracil with hormonal synchronization using tamoxifen and conjugated estrogens. Local treatment was determined by response to chemotherapy. Patients with a clinical parital response underwent mastectomy followed by local-regional radiotherapy while patients with a clinical complete response were biopsied for pathologic correlation. Those with residual disease received mastectomy followed by radiotherapy while those with a pathologic complete response received radiation only to the intact breast and regional nodes. With a median follow-up of 64 months, patients with IIIA disease had a significantly lower local-regional failure rate compared to IIIB inflammatory patients, with the 5-year actuarial local-regional failure rate as only site of first failure 3% for IIIA disease versus 21% for IIIB inflammatory cancer (p = .02), and local-regional failure as any component of first failure 12% versus 36% (p = .01), respectively. When local-regional failure was analyzed by repeat biopsy, 5/31 (16%) patients with a pathologic complete response treated with radiation only developed a local-regional failure versus 2/53 (4%) with residual disease treated with mastectomy and postoperative radiotherapy. The 5-year actuarial local-regional failure rate as first site of failure was 23% for radiation only versus 5% for mastectomy and post-operative radiotherapy (p = .07). The response to chemotherapy did not reliably predict local-regional control. Both relapse-free survival and overall survival were significantly better for IIIA versus IIIB patients; stratification by repeat biopsy did not however, significantly affect either relapse-free or overall survival.

Adult

Concomitant cisplatin and hyperfractionated external beam irradiation for advanced malignancy of the head and neck.

The combination of cisplatin and hyperfractionated external beam irradiation (HEBI), followed by salvage surgery when indicated, was evaluated in patients with advanced stage squamous cell carcinoma of the head and neck. Thirty patients with stage III (n = 5) or IV (n = 25) disease received intravenous cisplatin 100 mg/m2 by 6-hour continuous infusion on days 1, 21, and 42 of HEBI. Radiation fractions of 110 cGy were given twice daily, separated by 4 to 6 hours, beginning within 12 hours after cisplatin delivery. Doses to the primary site ranged from 60 to 76.35 Gy (median: 72.3 Gy), with 60 to 74 Gy to nodal sites. Follow-up ranged from 4 to 28 months (median: 19 months). Clinical complete response of the primary site was seen in 27 of 29 patients (93%), and complete clinical clearance of adenopathy in 20 of 26 (76%). A second biopsy 6 to 8 weeks after completion of treatment showed residual disease in both the primary and nodal sites in three patients, and in only the primary site in one patient. Four patients with persistent adenopathy had pathologic confirmation at surgery. Four patients had recurrence after negative biopsy results 6 to 9 months after treatment biopsy. At present, with median follow-up of 19 months, eight patients (26%) have died secondary to uncontrolled primary or nodal disease. Two patients have died of nonrelated causes. Overall, 10 of 30 patients (66%) remain alive with no evidence of disease. Mucositis and weight loss were the most common side effects of treatment. Seven patients developed significant xerostomia, and four have cisplatin-related hearing loss requiring amplification. The early evidence of excellent response (89% pathologic complete response of primary sites; 78% complete response of nodal sites), coupled with acceptable treatment morbidity, warrants further study of this approach.

Adult

Chemotherapy with high dose ifosfamide/mesna plus cisplatin for the treatment of ovarian cancer: a study of the Grupo de Estudio y Tratamiento Latino-Americano del Cancer.

Twenty-one evaluable patients with FIGO stages II-IV epithelial ovarian cancer, median age 57 (range 47-75 years), were treated with ifosfamide (IF), 3 g/m2 diluted in 500 ml saline solution, 8 hour intravenous (i.v.) infusion on days 1-5; mesna 20% of IF dose, i.v. bolus injection, was given at hours 0 and 4; mesna 40% of IF dose by oral route at hours 8 and 12, days 1-5; plus cisplatin 20 mg/m2 diluted in 500 ml saline solution, 2 hour i.v. infusion, days 1-5. Cycles were repeated every 4 weeks. All patients had metastatic lesions (mesentery, pleura, colon, cervix, abdominal wall, lung, liver, bladder, and nodes). Toxicity ranged from mild to moderate. All patients experienced alopecia, nausea, and vomiting. Neutropenia and anemia ranged from mild to moderate. One patient experienced mild brain confusion and two patients microscopic hematuria. Ten clinically complete responses (47%) and five clinically partial responses (23%) were registered, for an overall 70% objective response. However, after a second look performance in 10 patients with clinically complete response, six of 10 patients showed a pathological complete response and four showed pathological partial response. The median duration of complete response is about 33 months, and median partial response duration is 14 months. Although the numbers are small, these data indicate that combination chemotherapy with high dose ifosfamide/mesna plus cisplatin may be an active treatment for advanced ovarian carcinoma.

Aged

High-dose platinum consisting of combined carboplatin and cisplatin in previously untreated ovarian cancer patients with residual disease.

A phase II trial of carboplatin, 300 mg/m2 day 1, and cisplatin, 50 mg/m2 days 2 and 3 every 4 weeks for six cycles, was performed in 42 previously untreated patients with residual disease after primary laparotomy. Overall, 79% of patients had primary residual tumor larger than 2 cm. The overall pathologic response rate (pathologic complete response [PCR] plus partial response [PPR]) in 37 evaluable patients was 62%, and in PCRs was 22%. Of the responding patients, 78% had primary residual tumor larger than 2 cm. The toxicity was cumulative but manageable, with thrombocytopenia being the main reason for dose reduction. Dose-limiting nephrotoxicity and neurotoxicity occurred in 22% and 7% of the patients, respectively. Combined high-dose platinum as a "single agent" appears to be as active as combination chemotherapy containing cisplatin, and the treatment is feasible. Further clinical trials of this combination alone or combined with other drugs are warranted.

Adult

Combined high-dose carboplatin and cisplatin, and ifosfamide in previously untreated ovarian cancer patients with residual disease.

Carboplatin 200 mg/m2 day 1, cisplatin 50 mg/m2 days 2 and 3, ifosfamide 1,500 mg/m2 days 1 to 3, and mesna 900 mg/m2 days 1 to 3 every 4 weeks for six cycles were given to 37 previously untreated ovarian cancer patients with residual disease after the primary laparotomy. The median observation time was 17+ months (range, 9+ to 24+ months). Of all the patients, 81% had primary residual disease larger than 2 cm. The overall pathologic response rate (pathologic complete response [PCR] plus partial response [PPR]) in 36 assessable patients was 58%, PCR was 42%. Of the PCR patients, 53% had primary residual tumor larger than 5 cm. The substantial hematologic toxicity was manageable, but also the main reason for dose modifications. During treatment, 92% and 100% of the patients developed WBC and platelet nadir values corresponding to World Health Organization (WHO) grades 3 to 4. Dose-limiting encephalopathy, nephro- and neurotoxicity each occurred in 6% of the patients. The high PCR rate warrants further investigations of combined high-dose platinum and ifosfamide.

Adult

Pilot study of preoperative chemotherapy with cisplatin, vinblastine, and dacarbazine in patients with local-regional recurrence of melanoma.

BACKGROUND: Because the prognosis of patients with local-regional recurrence of melanoma treated with surgery alone usually is poor, the authors conducted a study designed to determine the efficacy of preoperative chemotherapy using cisplatin, vinblastine, and dacarbazine (CVD) in this patient population. METHODS: Eligibility included biopsy-proven, measurable, and potentially resectable local-regional disease in the form of lymph node metastases, satellite/in-transit metastases and/or local recurrence. CVD consisted of cisplatin, 20 mg/m2 intravenously (IV) on days 2-5; vinblastine, 1.6 mg/m2 IV on days 1-5; and dacarbazine, 800 mg/m2 IV on day 1 only, repeated every 3 weeks. Patients usually received two to three courses of CVD and then underwent surgery. Postoperatively, patients who responded continued CVD for a maximum of 8 courses; nonresponders received no further therapy. RESULTS: Of 52 consecutive patients (40 with lymph node involvement and 12 with skin metastases), 5 (10%) achieved a pathologic complete response and 20 (38%) achieved a partial response, for an overall response rate of 48% (95% confidence interval, 34-62). Of the five patients who achieved a pathologic complete response, three had attained a clinical complete response and one a partial response, and one had stable disease after initial chemotherapy. At a median follow-up of 54 months (range, 32-69 months), 38% of the patients remained disease free. CONCLUSION: Preoperative chemotherapy with CVD has significant activity in local-regional recurrences of melanoma, resulting in pathologic complete response in 10% of the patients. Because its impact on survival remains unclear, this treatment strategy should currently remain investigational. Preoperative chemotherapy, however, could be offered to certain patients with bulky, borderline resectable, regional disease for whom cytoreduction may make surgery easier or less mutilating.

Adult