Conservative surgery in stage I adult type granulosa cells tumors of the ovary: Results from the MITO-9 study.

OBJECTIVE: About 30% of Adult type granulosa cell tumors of the ovary (AGCTs) are diagnosed in fertile age. In stage I, conservative surgery (fertility-sparing surgery, FSS), either unilateral salpingo-oophorectomy (USO) or cystectomy are possible options. The aim of this study is to compare oncological outcomes of FSS and radical surgery (RS) in apparently stage I AGCTs treated within the MITO group (Multicenter Italian Trials in Ovarian cancer). METHODS: Survival curves were calculated using the Kaplan-Meier method and compared with log-rank test. The role of clinicopathological variables as prognostic factors for survival was assessed using Cox's regression. RESULTS: Two-hundred and twenty-nine patients were included; 32.6% received FSS, 67.4% RS. In the FSS group, 62.8% underwent USO, 16.7% cystectomy, 20.5% cystectomy followed by USO. After a median follow up of 84 months, median DFS was significantly worse in the FSS-group (10 yr DFS 50% vs 74%, in FSS and RS group, p = 0.006). No significant difference was detected between RS and USO (10 yr DFS 75% vs 70%, p = 0.5).Cystectomy-group showed a significantly worse DFS compared to USO (10 yr DFS 16% vs 70%, p < 0.001). Patients receiving cystectomy and subsequent USO showed a better prognosis, even though significantly worse compared to USO (10 yr DFS 41% vs 70%, p = 0.05). Between FSS and RS, no difference in OS was detected. At multivariate analysis, FIGO stage IC and cystectomy retained significant predictive value for worse survival. CONCLUSIONS: This study supports the oncological safety of FSS in stage I AGCTs, provided that cystectomy is avoided; USO should be the preferred approach.

The role of staging and adjuvant chemotherapy in stage I malignant ovarian germ cell tumors (MOGTs): the MITO-9 study.

Background: Surgery followed by platinum-based chemotherapy is the standard of care for MOGCTs, except for stage IA dysgerminoma and stage IA grade 1 immature teratoma where surveillance only is recommended. The role of adjuvant chemotherapy and surgical staging is debated. Patients and methods: Data from 144 patients with stage I MOGTs were collected among MITO centers (Multicenter Italian Trials in Ovarian Cancer) and analyzed. Results: Fifty-five (38.2%) patients were affected by dysgerminomas, 49 (34%) by immature teratomas, 26 (18.1%) by yolk sac tumors and 14 (9.7%) by mixed tumors. Seventy-three (50.7%) patients receive surgery plus chemotherapy, while 71 (49.3%) patients underwent surgery alone. The latter group included 32 dysgerminomas (14 IA-13 Ix, 3 IB, and 2 IC), 34 immature teratomas (20 1A-13 IA grade 1, 6 Ix, 1 IB, and 7 IC), 4 mixed tumors and 1 yolk sac tumor. Forty-four patients did not received chemotherapy, even if it would have been indicated by recommended approach. 94 (65.3%) patients received peritoneal surgical staging. Twenty-three (15.9%) developed a recurrence. Incomplete surgical staging was associated with recurrence (P < 0.05; OR 2.37) at Cox regression analysis. Seven patients died. Four patients were affected by yolk sac tumors, two by mixed tumors and one by immature teratoma. Five patients died for disease, one for acute leukemia and one for suicide. Prognostic parameter analyses showed that yolk sac component is a predictor for survival (P < 0.05). Five-years OS rates were 96.8% and 88.7% in the surgically staged and the incomplete staged group, respectively, while 93.8% and 94.1% in the standard treatment and in the surveillance group, respectively. Conclusions: This study shows that surveillance seems not to affect survival; chemotherapy should be reserved for relapse resulting in high cure rate. Incomplete peritoneal surgical staging is associated with recurrence. Yolk sac histology worsens the prognosis.

Adjuvant chemotherapy does not improve disease-free survival in FIGO stage IC ovarian granulosa cell tumors: The MITO-9 study.

OBJECTIVE: Evidence-based management of granulosa cell tumors of the ovary (GCT) has been not yet standardized: surgery, including fertility-sparing procedures for young women, has been traditionally the standard treatment; on the other hand, chemotherapy has been used for treatment of advanced and/or recurrent disease. However, very limited experience, has been selectively focused on the role of adjuvant chemotherapy in stage IC patients. The objective of this retrospective study was to assess the efficacy of first line postoperative chemotherapy in patients with stage IC treated at the Italian Centers involved in the MITO (Multicenter Italian Trials in Ovarian cancer) Group. PATIENTS AND METHODS: A retrospective multi-institutional review of patients with GCT of the ovary at FIGO stage IC treated or referred to MITO centers was conducted. Surgical outcome, pathological findings and follow-up data were analysed. Kaplan-Meier and Cox proportional hazards analyses were used to determine the predictors factors for disease free survival. RESULTS: A total of 40 patients with primary GCT of the ovary at FIGO stage IC were identified. The median follow-up period was 96months (range 7-300). At multivariate analysis, surgical treatment outside MITO centers and incomplete surgical staging were independent poor prognostic indicators for recurrence; adjuvant chemotherapy did not retain significant predictive value for recurrence. CONCLUSIONS: This study raises the question about the value of adjuvant chemotherapy in stage IC GCT: a comprehensive evaluation of a larger series is urgently needed in order to characterize stage IC substages who can be spared treatment toxicity.

Long-term follow-up is crucial after treatment for granulosa cell tumours of the ovary.

OBJECTIVE: The aim of this study is to evaluate the long-term outcome of granulosa cell tumour (GCT) of the ovary in a large series of patients treated in MITO centres (Multicentre Italian Trials in Ovarian Cancer) and to define prognostic parameters for relapse and survival. METHODS: A retrospective multi-institutional review of patients with GCTs of the ovary treated or referred to MITO centres was conducted. Surgical outcome, intraoperative and pathological findings and follow-up data were analysed. Kaplan-Meier and Cox proportional hazards analyses were used to determine the predictors for survival and recurrence. RESULTS: A total of 97 patients with primary GCT of the ovary were identified. The median follow-up period was 88 months (range 6-498). Of these, 33 patients had at least one episode of disease recurrence, with a median time to recurrence of 53 months (range 9-332). Also, 47% of recurrences occurred after 5 years from initial diagnosis. At multivariate analysis, age and stage were independent poor prognostic indicators for survival; surgical treatment outside MITO centres and incomplete surgical staging retained significant predictive value for recurrence in both univariate and multivariate analyses. CONCLUSIONS: This study confirms the generally favourable prognosis of GCTs of the ovary, with 5-year overall survival approaching 97%. Nevertheless, prognosis after 20 years was significantly poorer, with 20-year survival rate of 66.8% and a global mortality of 30-35. These findings support the need for lifelong follow-up even in early-stage GCT.

Ten years survival of FIGO stage IIIC epithelial ovarian cancer cases due to lymph node metastases only.

PURPOSE OF INVESTIGATION: In this paper the authors have analyzed the long-term survival of women with Stage III ovarian cancer due to lymph node metastasis. MATERIALS AND METHODS: This retrospective study included 27 patients with FIGO Stage IIIC epithelial ovarian carcinoma due to lymph node metastases observed consecutively at the Mangiagalli Clinic of Milan from 1982 to 2008. RESULTS: Two cases had Fallopian tube carcinoma. A total of ten recurrences were observed. Median time to recurrence was 158 months. The five-year disease-free survival (DFS) was 57.7%. The ten-year corresponding value was 53.2%. Median survival time was 158 months, with median follow-up time of 169 months. The five-year (overall survival) OS rate was 77.1%; the ten-year rate was 55.4%. CONCLUSION: Women with ovarian cancer Stage IIIC due to nodal involvement have a five-year OS of about 80% and a ten-year OS of about 50%.

Is adjuvant chemotherapy indicated in stage I pure immature ovarian teratoma (IT)? A multicentre Italian trial in ovarian cancer (MITO-9).

OBJECTIVE: Conservative surgery followed by platinum-based chemotherapy is considered the standard approach for stage I immature ovarian teratoma (IT), except for stage IA G1. Nevertheless the use of chemotherapy in stage IA G2-3 and IB-IC is controversial. The aim of this study was to evaluate the outcome of patients with IT in order to define the role of chemotherapy in stage I disease. METHODS: Twenty-eight patients with stage I IT treated in MITO centers were retrospectively reviewed. Grade, stage, age, surgical and postoperative treatment were analyzed using χ(2) test and T test looking for association with recurrence. RESULTS: Median age was 25.5. Twenty-four patients underwent fertility-sparing surgery. FIGO stages were 19 IA, 2 IB, and 7 IC. Nine patients had grade 1 tumor, 12 grade 2, and 7 grade 3. Nine patients received adjuvant chemotherapy. Overall recurrence rate was 21.4% (2 in chemotherapy group and 4 in the group without treatment). No patients with G1 had recurrence, whereas 25% of G2 and 42.9% of G3 relapsed. Recurrence rate was not significantly different according to stage, grade or adjuvant chemotherapy, whereas it was greater in the group not operated in a MITO center, not staged and of age lower than 20 years, with statistical significance. At recurrence 4 patients presenting with mature teratoma were treated with surgery alone, whereas 2 recurring with IT were treated with surgery plus chemotherapy. After a median follow-up of 59 months all patients are NED. CONCLUSIONS: Our study suggests that chemotherapy may be withheld for primary therapy and utilized only for recurrence.

Phase III randomised study to evaluate the role of adjuvant pelvic radiotherapy in the treatment of uterine sarcomas stages I and II: an European Organisation for Research and Treatment of Cancer Gynaecological Cancer Group Study (protocol 55874).

The management of uterine sarcomas continues to present many difficulties. Primary surgery is the optimal treatment but the role of post-operative radiation remains uncertain. In the mid-1980s, the European Organisation for Research and Treatment of Cancer Gynaecological Cancer Group Study proposed a trial to evaluate adjuvant radiotherapy, as previous non-randomised studies had suggested a survival advantage and improved local control when post-operative radiation was administered. The study opened in 1987 taking 13 years to accrue 224 patients. All uterine sarcoma subtypes were permitted. Patients were required to have undergone as a minimum, TAH and BSO and wahsings (166 patients) but nodal sampling was optional. There were 103 leiomyosarcomas (LMS), 91 carcinosarcomas (CS) and 28 endometrial stromal sarcomas (ESS). Patients were randomised to either observation or pelvic radiation, 51 Gy in 28 fractions over 5 weeks. Hundred and twelve were recruited to each arm. The initial analysis has shown a reduction in local relapse (14 versus 24, p=0.004) but no effect on either OS or PFS. No unexpected toxicity was seen in the radiation arm. No difference in either overall or disease-free survival was demonstrated but there is an increased local control for the CS patients receiving radiation but without any benefit for LMS. Prognostic factor analysis shows that stage, age and histological subtype were important predictors of behaviour which may explain differences between CS and LMS. CS appears to show more kinship to poorly differentiated endometrial carcinomas in behaviour. LMS did not show the same benefit from radiation. These results will help shape future management and clinical trials in uterine sarcomas.

Laparoscopic surgery in the treatment of stage I adult granulosa cells tumors of the ovary: Results from the MITO-9 study.

OBJECTIVE: Surgery represents the mainstay of treatment of stage I adult type granulosa cell tumors of the ovary (AGCTs). Because of the rarity and indolent course of the disease, no prospective trials are available. Open surgery has long been considered the traditional approach; oncological safety of laparoscopy is only supported by small series or case reports. The aim of this study was to compare the oncological outcomes between laparoscopic and open surgery in stage I AGCTs treated within the MITO (Multicenter Italian Trials in Ovarian cancer) Group. METHODS: Data from patients with stage I AGCTs were retrospectively collected. Clinicopathological features were evaluated for association with relapse and death. Survival curves were calculated using the Kaplan-Meier method and compared with the log-rank test. The role of clinicopathological variables as prognostic factors for survival was evaluated using Cox's regression model. RESULTS: 223 patients were identified. Stage 1A, 1B and 1C were 61.5%, 1.3% and 29.6% respectively. 7.6% were apparently stage I. Surgical approach was laparoscopic for 93 patients (41.7%) and open for 130 (58.3%). 5-years DFS was 84% and 82%, 10-years DFS was 68% and 64% for the laparoscopic and open-group (p = 0.6).5-years OS was 100% and 99%, 10 years OS was 98% and 97% for the laparoscopic and open-surgery group (p = 0.8). At multivariate analyses stage IC, incomplete staging, site of primary surgery retained significant prognostic value. CONCLUSION: The present study suggests that surgical route does not affect the oncological safety of patients with stage I AGCTs, with comparable outcomes between laparoscopic and open approach.

p53 gene status and response to platinum/paclitaxel-based chemotherapy in advanced ovarian carcinoma.

PURPOSE: The p53 gene plays a critical role in cellular response to DNA damage and has been implicated in the response to platinum compounds in ovarian carcinoma patients. Because taxanes could induce p53-independent apoptosis, we assessed the relevance of p53 gene status to response in ovarian carcinoma patients receiving paclitaxel and platinum-containing chemotherapy. PATIENTS AND METHODS: Forty-eight previously untreated patients with advanced disease received standard paclitaxel/platinum-based chemotherapy. In tumor specimens collected at the time of initial surgery, before therapy, p53 gene status and expression were examined by single-strand conformation polymorphism, sequence analysis, and immunohistochemical analysis. Microsatellite instability analysis was performed on available samples from 30 patients. RESULTS: Thirty-four (71%) of the 48 patients had a clinical response. Pathologic complete remission was documented in 13 (27%) of 48 patients. p53 mutations were detected in 29 (60%) of 48 tumors. Among the patients with mutant p53 tumors, 25 patients (86%) responded to chemotherapy. Only nine (47%) of 19 patients with wild-type p53 tumors responded to the same treatment. The overall response rate and the complete remission rate were significantly higher among patients with mutant p53 tumors than among patients with wild-type p53 tumors (P: =.008). Most of the tested tumors not associated with complete remission (10 of 12 tumors) were also characterized by microsatellite instability. The complete remission rate was higher among patients with tumors without microsatellite instability (five of seven patients). CONCLUSION: In contrast to the limited efficacy of treatment with paclitaxel in combination with standard platinum doses against wild-type p53 ovarian tumors, patients with mutant p53 ovarian tumors were more responsive to paclitaxel-based chemotherapy. The pattern of response to chemotherapy containing paclitaxel is different from that associated with high-dose cisplatin therapy. Determining p53 mutational status can be useful in predicting therapeutic response to drugs effective in ovarian carcinoma.

Weekly cisplatin given for 2 months versus cisplatin plus cyclophosphamide given for 5 months after cytoreductive surgery for advanced ovarian cancer.

PURPOSE: To compare the efficacy of a treatment with cisplatin plus cyclophosphamide given for 5 months and a short treatment with cisplatin alone in advanced ovarian cancer, we conducted a multicenter randomized clinical trial. PATIENTS AND METHODS: Eligibility criteria were as follows: first diagnosis of histologically confirmed invasive epithelial ovarian cancer of International Federation of Gynecology and Obstetric (FIGO) stage III-IV, age younger than 75 years, and Eastern Cooperative Oncology Group (ECOG) performance status 0, 1, or 2. Within 28 days of cytoreductive surgery, eligible women were randomly assigned treatment with weekly cisplatin 50 mg/m2 for nine courses or cisplatin 75 mg/m2 plus cyclophosphamide 750 mg/m2 every 21 days for six courses. RESULTS: A total of 607 women were entered onto the study. There was no difference in the response to treatment. Pathologic complete response (CR) was documented in 63 of the weekly cisplatin cases and 70 of the cisplatin plus cyclophosphamide group (chi 1(2) = 1.43; P = .23). The median follow-up time was 3 years. There were 151 and 148 deaths in the weekly cisplatin and cyclophosphamide plus cisplatin arms, respectively. Survival curves were similar in the two groups, with a 3-year percent survival estimate of 44.1 (SE = 3.4) in the weekly cisplatin and 44.6 (SE = 3.4) in the cisplatin plus cyclophosphamide group (log-rank test chi 1(2) = 0.004; P = .96). CONCLUSION: This study found that 2-month monochemotherapy treatment with cisplatin was as effective as 5-month polychemotherapy including cisplatin at a similar doses but different dose-intensity plus cyclophosphamide.

Topotecan, an active drug in the second-line treatment of epithelial ovarian cancer: results of a large European phase II study.

PURPOSE: Topotecan is a topoisomerase I inhibitor with preclinical activity against various tumor types. We conducted a large multicenter phase II study with topotecan in ovarian cancer in patients who had failed to respond to one prior cisplatin-based chemotherapeutic regimen. PATIENTS AND METHODS: Topotecan 1.5 mg/m2/d was administered intravenously by 30-minute infusion for 5 days repeated every 3 weeks. As the cisplatin-free interval relates to response in subsequent treatment, patients were stratified in subgroups, ie, cisplatin-refractory, cisplatin-resistant, and cisplatin-sensitive. RESULTS: One-hundred eleven patients entered the study. Nineteen patients were considered to be ineligible; 92 patients were assessable for response. A total of 552 courses were given (median, four per patient; range, one to 17). The major toxicities were leukocytopenia and neutropenia, which were grade 3 to 4 in 54.2% and 69.1% of courses, respectively, but with only 4.3% of these being grade 4 neutropenia plus fever or infectious complications. Prophylactic granulocyte colony-stimulating factor (G-CSF) was given in 20.5% of courses to maintain dose-intensity. Other relatively frequent side effects were alopecia (82%), nausea (36.4%), and vomiting (17.5%). The overall response rate was 16.3%, with one complete response (CR) and 14 partial responses (PRs). In the cisplatin-refractory, cisplatin-resistant, and cisplatin-sensitive strata, the response rates were 5.9%, 17.8%, and 26.7%, respectively. The median duration of time of documented response was 21.7 weeks (range, 4.6 to 41.9). CONCLUSION: Topotecan in a daily-times-five schedule is an effective regimen as second-line treatment in ovarian cancer. Further investigations of topotecan in ovarian cancer, including first-line use and combination with other active agents, are indicated.

Single-dose intraperitoneal radioimmunotherapy with the murine monoclonal antibody I-131 MOv18: clinical results in patients with minimal residual disease of ovarian cancer.

Sixteen of 19 enrolled patients with minimal residual disease of ovarian cancer (macroscopic disease < 5 mm or positive blind biopsies and/or positive peritoneal washing), demonstrated by surgical second-look, underwent intraperitoneal radioimmunotherapy (RIT) with the radiolabelled monoclonal antibody I-131 MOv18 (mean dose 14 mg of MOv18 with 3700 GBq of I-131) 30-40 days after the second-look procedure. Clinical follow-up and/or third-look evaluation performed 90 days after RIT showed complete response (CR) in 5 patients, no change (NC) in 6 patients and progressive disease (PD) in 5 patients. Follow-up study showed long-term maintained CR in 1 patient (34 months) and relapses in the other 4 patients after a mean disease-free period of 10.5 months. 5 NC patients showed clinical or instrumental progression after a mean disease-free period of 13 months. The toxicity of RIT was negligible. Only 1 patient showed mild and transient bone marrow suppression (platelet count nadir 52,000 mm3 after 30 days). HAMA production was demonstrated in 94% (15/16) of patients. In conclusion, RIT appears to be a very promising therapeutic approach to treat minimal residual disease of ovarian cancer.

Potentials of cell kinetics in the management of patients with ovarian cancers.

The relevance of 3H-thymidine labeling index (3H-dt LI) on clinical outcome was evaluated on 85 patients with advanced ovarian cancers treated with carboplatin or cisplatin alone (39 cases) or cisplatin in association with doxorubicin and/or cyclophosphamide (46 cases). 3H-dT LI of the primary tumour was significantly related to the 3-year probability of survival in patients treated by monochemotherapy (low LI, 63%; high LI, 21%; P = 0.013) but not in those treated with polychemotherapy. Analysis of the relation between cell kinetics and clinical outcome as a function of treatment showed that in patients with rapidly proliferating tumours the 3-year survival was significantly higher following polychemotherapy than monochemotherapy (51 vs. 21%; P = 0.04). In patients with slowly proliferating tumours no significant difference in survival was observed following the two types of treatment for the overall series, whereas in patients not achieving a complete response survival was significantly higher following monochemotherapy than polychemotherapy (61 vs. 9%; P = 0.008).

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.

A phase I-II trial of fixed-dose carboplatin and escalating paclitaxel in advanced ovarian cancer.

We conducted a phase I-II study with escalating paclitaxel doses plus carboplatin at a fixed dose for previously untreated patients with advanced ovarian cancer in order to define the maximum tolerated dose. Eligible for the study were women with a histologically confirmed diagnosis of ovarian cancer stage III-IV according to the FIGO classification. In the first phase of the study, 6 patients were allocated escalating paclitaxel doses with fixed-dose carboplatin in order to establish the maximum tolerated dose. The starting dose of paclitaxel was 150 mg/m2 given after carboplatin (300 mg/m2) every 4 weeks for a total of six courses. The paclitaxel dose step was 25 mg/m2 up to 250 mg/m2. The study then progressed to a phase II trial using the maximum tolerated paclitaxel dosage reached during the escalating dose phase. A total of 27 patients entered phase I and 23 phase II. Neurotoxicity was observed in 47 patients (94%; 29 grade 1, 17 grade 2, 1 grade 3, according to the WHO classification). The intensity of neurotoxicity tended to be dose related: out of the 15 patients who received < or = 200 mg paclitaxel, a total of 14 grade 1, but no grade 2 or 3 neurotoxicities, were observed. The frequency of grade 1, 2 and 3 neurotoxicity was 15, 17 and 1, respectively, in the 35 women who received > or = 225 paclitaxel +300 mg carboplatin. There was no clear relationship between median WBC and platelet nadir and dose level. Among other toxicities, alopecia was observed in all 50 cases, hypersensitivity in two (4%) and myalgia in 41 (82%; 34 grade 1 and 7 grade 2). These frequencies tended to increase with the dose, but the relationship was not statistically significant. The overall response rate was 78% (39/50) with a complete response rate of 62% (31/50). In conclusion, this study suggests that carboplatin and paclitaxel can be administered safely to patients with advanced ovarian carcinoma. The maximum dose reached was 250 mg/m2 paclitaxel and 300 mg/m2 for carboplatin, but from a clinical point of view the maximum paclitaxel dose we would consider safe is 225 mg/m2.

A phase I trial with fixed-dose carboplatin and escalating doses of paclitaxel in advanced ovarian cancer.

A dose-finding study involving 27 untreated patients with ovarian cancer was performed to define the maximum tolerated dose of a 3-hour infusion of paclitaxel (Taxol; Bristol-Myers Squibb Company, Princeton, NJ) combined with a fixed dose of carboplatin. The median age of the study patients was 55 years (age range, 30 to 74 years), the median Eastern Cooperative Oncology Group performance status was 0 (range, 0 to 2), and residual tumor to first surgery was > or = 1 cm in 14 patients and less than 1 cm in 13 patients. All patients received carboplatin at a fixed dose of 300 mg/m2 over 1 hour. Paclitaxel was administered at five dose levels starting at 150 mg/m2 and increasing in 25-mg/m2 increments to 250 mg/m2. In the absence of toxicity, courses were repeated every 4 weeks for a total of six cycles. World Health Organization grade 1 hypersensitivity and cardiotoxicity were observed in 7.4% and 14.8% of patients, respectively. Moderate peripheral neuropathy was experienced by 29.6% of patients. Grades 3 and 4 neutropenia lasted less than 7 days; no patient required hospitalization for sepsis or febrile neutropenia, and no supportive treatment with granulocyte or granulocyte-macrophage colony-stimulating factor was needed. The maximum tolerated paclitaxel dose was not achieved.

[Topotecan: prospects for using it in combination therapy for ovarian carcinoma]. / Topotecan: le prospettive di utilizzo nella terapia di associazione del carcinoma dell'ovaio.

Topotecan is a semi-synthetic, water soluble topoisomerase I inhibitor which has recently been approved for the treatment of ovarian cancers after failure of first-line therapy. A number of different dosing schedules are being investigated in clinical trials including oral administration, a daily infusion on 5- or 3-consecutive days and a continuous infusion for 21 days. A 30-minute infusion of topotecan 1.5 mg/m2 on 5 consecutive days every 3 weeks, as standard schedule, produced response rates of 13.8 to 20.5% in the 3 largest phase II/III studies in women with advanced ovarian cancers who had either failed to respond or had relapsed after an initial response to platinum-based chemotherapy (N = 92 to 139), continuous 21-day infusion of topotecan 0.3 to 0.5 mg/m2 has shown efficacy in 2 small phase II studies. There were no statistically significant difference in efficacy between topotecan (1.5 mg/m2/day for 5 consecutive days every 21 days) and paclitaxel (175 mg/m2/day given over 3-h every 21 days) in the randomized phase III study. In 3 large clinical trials, response to topotecan was higher in patients who were platinum sensitive (19.2 to 29%) than in those whose disease was platinum resistant or refractory (11.3 to 13.3%) not statistically significant in 1 study, statistical analysis not reported in the other 2 trials. Myelosuppression, particularly neutropenia, is the dose-limiting toxicity of topotecan. It is reversible, dose-related and non-cumulative. In 2 large studies, topotecan produced grade 4 neutropenia in 78 and 79% of patients and in 40 and 37% of all treatment courses (febrile neutropenia occurred during 3% of 552 courses in 1 study). Grade 4 thrombocytopenia was seen in 18 and 25% of patients and in 6 and 10% of all courses, respectively. Grade 4 neutropenia was significantly more common in patients receiving topotecan than in those receiving paclitaxel (79 vs 23%), as was grade 4 thrombocytopenia (25 vs 2%), in a single randomized clinical trial. Non-hematological adverse events during topotecan therapy were mostly mild. A step beyond is the combination treatment including topotecan as a 3- or 5 days schedule plus a platinum compounds or topoisomerase II inhibitor. These associations of drugs are based on the preclinical data of the in vitro studies showing a synergy of the anti-tumor activity. A novel schedule of topotecan is also the "alternating" chemotherapy consisting of different doublet of drugs given as a sequential way or as a really sequential topotecan therapy. Both methods of combining topotecan as second/salvage treatment or front line therapy are being investigated by numerous authors. Preliminary data suggest interesting results in terms of efficacy, manageable toxicity and new schedules of treatment for topotecan. Low dosages of drug in combination with other agent do not seem to influence the well-known data of efficacy or safety of topotecan literature. Probably the 3-day schedule allows a combination treatment, otherwise not feasible with the standard 5-day administration.

CA 125 reliability in predicting ovarian cancer recurrence.

The predictive value of CA 125 assay for recurrence in ovarian cancer patients in follow-up was analyzed in a study from April 1984 through June 1987. Forty-two patients with no evidence of disease (NED), with positive antigen levels at diagnosis and negative at the end of active treatment, were considered eligible for the analysis. Median follow-up time was 16 months (range, 5-34). Outcome analysis revealed 19 cases still NED: 16 had normal CA 125 levels (less than 35 U/ml). The 3 patients with positive antigen titers were intensively investigated with no evidence of recurrence. Twenty-three cases had disease recurrence: 13 of them had elevated marker levels prior to relapse diagnosis, with a median lead time of 5 months (range, 2-13). In contrast, 10 patients had positive titers at or soon after the recurrence. Test sensitivity was therefore 56% and specificity 84%. Predictive value for recurrence of elevated CA 125 levels was 0.81.

A phase I-II trial of high-dose ifosfamide in patients with ovarian cancer refractory or resistant to platinum and/or paclitaxel-containing chemotherapy.

AIMS AND BACKGROUND: To evaluate the toxicity of high-dose ifosfamide in ovarian cancer patients refractory or resistant to platinum and/or paclitaxel-containing chemotherapy. METHODS: This was an open, non-randomized phase I-II trial of high-dose ifosfamide. Eligibility criteria were: patients aged 18-75 years affected by ovarian cancer with refractory or resistant disease or early relapse after first-line treatment including platinum or paclitaxel. Three patients were given escalating ifosfamide doses; if no severe adverse events occurred, the ifosfamide dose was increased. The starting dose of ifosfamide was 10 g/m2 i.v. and the dose increase was 1 g/m2 every four weeks for a total of five courses; 12 g/m2 was the maximum ifosfamide dose to be administered. The trial then progressed to a phase II trial, in which ifosfamide was given at the maximum tolerated dose reached during the escalating dose phase. RESULTS: A total of 36 patients entered the trial. Nine patients were involved in phase I of the study; 3 received 10 g/m2 ifosfamide, 3 11 g/m2 and 3 12 g/m2. Of the 32 evaluable patients 6 (18.8%) achieved a complete response and three (9.4%) a partial response, giving an overall response rate of 28.1% (95% CI, 15-61% based on Poisson's approximation). The median number of ifosfamide courses was five. G1, G2 and G3 neurotoxicity was reported in 3 (8%), 2 (5%) and 2 (5%) patients, respectively. CONCLUSION: This phase I-II trial indicates that high-dose ifosfamide has some activity but also a relevant degree of toxicity in resistant or refractory platinum and paclitaxel-pretreated ovarian cancer.