No Impact of NRAS Mutation on Features of Primary and Metastatic Melanoma or on Outcomes of Checkpoint Inhibitor Immunotherapy: An Italian Melanoma Intergroup (IMI) Study

AIMS

It is debated whether the NRAS-mutant melanoma is more aggressive than NRAS wildtype. It is equally controversial whether NRAS-mutant metastatic melanoma (MM) is more responsive to checkpoint inhibitor immunotherapy (CII). 331 patients treated with CII as first-line were retrospectively recruited: 162 NRAS-mutant/BRAF wild-type (mut/wt) and 169 wt/wt. We compared the two cohorts regarding the characteristics of primary and metastatic disease, disease-free interval (DFI) and outcome to CII. No substantial differences were observed between the two groups at melanoma onset, except for a more frequent ulceration in the wt/wt group (p = 0.03). Also, the DFI was very similar in the two cohorts. In advanced disease, we only found lung and brain progression more frequent in the wt/wt group. Regarding the outcomes to CII, no significant differences were reported in overall response rate (ORR), disease control rate (DCR), progression free survival (PFS) or overall survival (OS) (42% versus 37%, 60% versus 59%, 12 (95% CI, 7-18) versus 9 months (95% CI, 6-16) and 32 (95% CI, 23-49) versus 27 months (95% CI, 16-35), respectively). Irrespectively of mutational status, a longer OS was significantly associated with normal LDH, <3 metastatic sites, lower white blood cell and platelet count, lower neutrophil-to-lymphocyte (N/L) ratio. Our data do not show increased aggressiveness and higher responsiveness to CII in NRAS-mutant MM.

Lipid Bound Sialic Acid in Cancer Patients

Serum lipid-bound sialic acid (LSA) was measured with a recently described procedure in 108 healthy subjects and in 138 patients with a variety of solid tumors and hematologic malignancies. At the time of serum sampling, 128 patients had active disease and 10 patients had no evidence of disease. LSA was elevated in 104 of 128 (81.2%) patients with active disease, while carcinoembryonic antigen, analyzed in 74, was elevated only in 21 (28.4%) (P < 0.05). Sensitivity of the serum LSA test ranged from 66% for breast and gastrointestinal cancer to 92% for lung cancer. In patients with lung cancer, ovarian cancer or Hodgkin's disease, LSA was correlated with the extent of disease and it also proved to be useful in following the course of disease. Our preliminary data indicate that this test can be used as a monitor of tumor burden.

Only pathologic complete response to neoadjuvant chemotherapy improves significantly the long term survival of patients with resectable esophageal squamous cell carcinoma: final report of a randomized, controlled trial of preoperative chemotherapy versus surgery alone

BACKGROUND

Surgery is the standard treatment for patients with resectable esophageal carcinoma, but the long term prognosis of these patients is unsatisfactory. Some randomized trials of preoperative chemotherapy suggest that the prognosis of patients who respond may be improved.

METHODS

This randomized, controlled trial compared patients with clinically resectable esophageal epidermoid carcinoma who underwent surgery alone (Arm A) with those who received preoperative chemotherapy (Arm B). Overall survival and the prognostic impact of major response to chemotherapy were analyzed. Forty-eight patients were enrolled in each arm. Chemotherapy consisted of two or three cycles of cisplatin (100 mg/m2 on Day 1) and 5- fluorouracil (1000 mg/m2 per day continuous infusion on Days 1-5). In both study arms, transthoracic esophagectomy plus two-field lymphadenectomy was performed. The two groups were comparable in terms of patient characteristics.

RESULTS

Forty-seven patients were evaluable in each arm. The curative resection rate was 74.4% (35 of 47 patients) in Arm A and 78.7% (37 of 47 patients) in Arm B. Treatment-related mortality was 4.2% in both arms. The response rate to preoperative chemotherapy was 40% (19 of 47 patients), including 6 patients (12.8%) who achieved a pathologic complete responses. Overall survival was not improved significantly. The 19 patients in Arm B who responded to chemotherapy and underwent curative resection had significantly better 3-year and 5-year survival rates (74% and 60%, respectively) compared with both nonresponders (24% and 12%, respectively; P = 0.0002) and patients in Arm A who underwent complete resection (46% and 26%, respectively; P = 0.01): Patients who achieved a pathologic complete response (P = 0.01), but not those who achieved a partial response (P = 0.2), had significantly improved survival.

CONCLUSIONS

Patients with resectable esophageal carcinoma who underwent preoperative chemotherapy and obtained a pathologic complete response had a significantly improved long term survival. Major efforts should be undertaken to identify patients before neoadjuvant treatments who are likely to respond.

Only pathologic complete response to neoadjuvant chemotherapy improves significantly the long term survival of patients with resectable esophageal squamous cell carcinoma: final report of a randomized, controlled trial of preoperative chemotherapy versus surgery alone

BACKGROUND

Surgery is the standard treatment for patients with resectable esophageal carcinoma, but the long term prognosis of these patients is unsatisfactory. Some randomized trials of preoperative chemotherapy suggest that the prognosis of patients who respond may be improved.

METHODS

This randomized, controlled trial compared patients with clinically resectable esophageal epidermoid carcinoma who underwent surgery alone (Arm A) with those who received preoperative chemotherapy (Arm B). Overall survival and the prognostic impact of major response to chemotherapy were analyzed. Forty-eight patients were enrolled in each arm. Chemotherapy consisted of two or three cycles of cisplatin (100 mg/m2 on Day 1) and 5- fluorouracil (1000 mg/m2 per day continuous infusion on Days 1-5). In both study arms, transthoracic esophagectomy plus two-field lymphadenectomy was performed. The two groups were comparable in terms of patient characteristics.

RESULTS

Forty-seven patients were evaluable in each arm. The curative resection rate was 74.4% (35 of 47 patients) in Arm A and 78.7% (37 of 47 patients) in Arm B. Treatment-related mortality was 4.2% in both arms. The response rate to preoperative chemotherapy was 40% (19 of 47 patients), including 6 patients (12.8%) who achieved a pathologic complete responses. Overall survival was not improved significantly. The 19 patients in Arm B who responded to chemotherapy and underwent curative resection had significantly better 3-year and 5-year survival rates (74% and 60%, respectively) compared with both nonresponders (24% and 12%, respectively; P = 0.0002) and patients in Arm A who underwent complete resection (46% and 26%, respectively; P = 0.01): Patients who achieved a pathologic complete response (P = 0.01), but not those who achieved a partial response (P = 0.2), had significantly improved survival.

CONCLUSIONS

Patients with resectable esophageal carcinoma who underwent preoperative chemotherapy and obtained a pathologic complete response had a significantly improved long term survival. Major efforts should be undertaken to identify patients before neoadjuvant treatments who are likely to respond.

Only pathologic complete response to neoadjuvant chemotherapy improves significantly the long term survival of patients with resectable esophageal squamous cell carcinoma: final report of a randomized, controlled trial of preoperative chemotherapy versus surgery alone

BACKGROUND

Surgery is the standard treatment for patients with resectable esophageal carcinoma, but the long term prognosis of these patients is unsatisfactory. Some randomized trials of preoperative chemotherapy suggest that the prognosis of patients who respond may be improved.

METHODS

This randomized, controlled trial compared patients with clinically resectable esophageal epidermoid carcinoma who underwent surgery alone (Arm A) with those who received preoperative chemotherapy (Arm B). Overall survival and the prognostic impact of major response to chemotherapy were analyzed. Forty-eight patients were enrolled in each arm. Chemotherapy consisted of two or three cycles of cisplatin (100 mg/m2 on Day 1) and 5- fluorouracil (1000 mg/m2 per day continuous infusion on Days 1-5). In both study arms, transthoracic esophagectomy plus two-field lymphadenectomy was performed. The two groups were comparable in terms of patient characteristics.

RESULTS

Forty-seven patients were evaluable in each arm. The curative resection rate was 74.4% (35 of 47 patients) in Arm A and 78.7% (37 of 47 patients) in Arm B. Treatment-related mortality was 4.2% in both arms. The response rate to preoperative chemotherapy was 40% (19 of 47 patients), including 6 patients (12.8%) who achieved a pathologic complete responses. Overall survival was not improved significantly. The 19 patients in Arm B who responded to chemotherapy and underwent curative resection had significantly better 3-year and 5-year survival rates (74% and 60%, respectively) compared with both nonresponders (24% and 12%, respectively; P = 0.0002) and patients in Arm A who underwent complete resection (46% and 26%, respectively; P = 0.01): Patients who achieved a pathologic complete response (P = 0.01), but not those who achieved a partial response (P = 0.2), had significantly improved survival.

CONCLUSIONS

Patients with resectable esophageal carcinoma who underwent preoperative chemotherapy and obtained a pathologic complete response had a significantly improved long term survival. Major efforts should be undertaken to identify patients before neoadjuvant treatments who are likely to respond.

Elderly ovarian cancer: treatment with mitoxantrone-carboplatin

OBJECTIVE

Data concerning optimal treatment of elderly patients with ovarian cancer are scanty. The management of ovarian cancer in the aged patient is many-sided: the diagnosis can be difficult and delayed, and aggressive surgery is often not attempted because of concomitant morbidity. We tested a combination of carboplatin and mitoxantrone potentially associated with low toxicity in elderly patients with ovarian cancer.

METHODS

Eighty-two patients older than 70 years (median age, 75; range, 70-88) with epithelial ovarian cancer were referred to our multicenter group and enrolled into this pilot study. Carboplatin (JM8) was given at the dose of 230 mg/m2 and mitoxantrone at the dose of 9 mg/m2 every 28 days.

RESULTS

Dose-limiting toxicity was represented by 4 cases of thrombocytopenia and 1 case of gastrointestinal toxicity. These 5 episodes occurred in 328 assessable cycles, representing a low toxicity profile (3%). Of the 68 assessable patients, 36 (53%) did not respond to chemotherapy (no change + progressive disease), complete response was observed in 15 (22%), and partial remission was observed in 16 (23.5%), accounting for an overall response rate of 45%.

CONCLUSION

The carboplatin-mitoxantrone combination, at the dosage tested in this study, appears to be well tolerated by elderly patients with advanced ovarian cancer and is associated with an acceptable response rate. Optimally debulked patients also showed improved survival when compared with patients with more extensive tumor.

Phase III trial of initial chemotherapy in stage III or IV head and neck cancers: a study by the Gruppo di Studio sui Tumori della Testa e del Collo

BACKGROUND

The standard treatment for advanced (stage III and IV) head and neck squamous cell carcinoma (i.e., surgery with postoperative radiotherapy in operable patients and radiotherapy alone in inoperable patients) has had poor results. A series of randomized trials of induction chemotherapy have up to now failed to demonstrate an improvement in survival.

PURPOSE

This trial was designed to determine whether intensive induction chemotherapy administered before loco-regional treatment would improve survival of patients with advanced disease.

METHODS

Patients had previously untreated, advanced nonmetastatic (stages III and IV) squamous cell carcinoma of the oral cavity, oropharynx, hypopharynx, and paranasal sinuses. The study design was a randomized, multi-institutional, phase III trial. Eligible patients (n = 237) were randomly assigned to receive either initial chemotherapy (cisplatin and infusional fluorouracil) followed by loco-regional treatment (group A, n = 118) or loco-regional treatment alone (group B, n = 119). For operable patients (group A, n = 34; group B, n = 32), loco-regional treatment included resection followed by adjuvant radiotherapy. For inoperable patients, radical irradiation was performed with a planned dose of 65-70 Gy to involved areas. A dose of 45-50 Gy was also planned to the uninvolved neck or postoperatively. The statistical (log-rank) test was performed no earlier than 2 years after the randomization of the last patient.

RESULTS

Seventy-one patients (60%) in group A and 67 patients (56%) in group B were considered free of disease after they completed the treatment sequence. The analysis of time to distant metastases showed an advantage for group A patients. (Respective 2- and 3-year values for inoperable patients were 15% and 24% for group A versus 36% and 42% for group B, P = .04; only one operable group A patient had distant metastases after 49 months versus 26% [2 years] and 31% [3 years] for operable group B patients, P = .01.) For inoperable patients, the combined treatment was significantly associated with an increase in complete remission rate (group A, 44%) as compared with radiotherapy alone (group B, 30%) (P = .037). Inoperable patients also benefitted from induction chemotherapy in terms of disease-free survival (49% and 34% for group A versus 28% and 26% for group B; P = .06) and of overall survival (30% and 24% for group A versus 19% and 10% for group B; P = .04).

CONCLUSIONS

When all 237 randomly assigned patients were analyzed, there were no significant differences in the two treatment strategies in loco-regional failure or in disease-free or overall survival, although the development of distant metastases was reduced. For operable patients, the only benefit from neoadjuvant chemotherapy was a significant reduction in the incidence of distant metastases. For inoperable patients, neoadjuvant chemotherapy improved local control, decreased the incidence of distant metastases, and improved the complete remission rate and overall survival.

IMPLICATIONS

Confirmatory studies with effective chemotherapy regimens delivered for an adequate number of cycles are required.

Epirubicin, methotrexate and bleomycin in the management of recurrent squamous cell head and neck cancer. A GSTTC randomised phase II study

53 patients with squamous cell carcinoma of the head and neck recurrent after initial treatment were entered into a phase II trial of the epirubicin, methotrexate and bleomycin (EMB) combination. The primary objective of the study was to evaluate the activity of this combination. Compliance to EMB and the possible non-cross-resistance to previous cisplatin-containing chemotherapy were secondary objectives. In order to avoid patient selection bias, the study involved randomisation between EMB and a cisplatin-methotrexate-bleomycin (DMB) combination (with EMB: DMB = 2:1). 23 out of 53 (43% +/- 13) EMB patients showed an objective response, lasting a median of 12 (range 4-39) weeks; interestingly, 5 out of 14 (36% +/- 25) patients pretreated with cisplatin plus 5-fluorouracil responded to EMB. The treatment compliance was good and a median of three courses was delivered. No patient refused the treatment after the initial cycle. Leukopenia (47%) and oral mucositis (42%) were the main side effects. DMB produced a response rate of 33% +/- 18 with a median duration of 5 (4-13) weeks. None of the patients previously treated with cisplatin plus 5-fluorouracil responded. 5 patients refused the treatment after the first cycle and a median of two cycles (0-5) was delivered. In conclusion, EMB produced results similar to cisplatin-containing regimens, with a mild to moderate toxicity and a good compliance; the possible non cross-resistance with cisplatin plus 5-fluorouracil deserves further evaluation.

Deflazacort and Fluoximesterone in Advanced, Pretreated Breast Cancer

A very simple, low dose, orally administered regime (10 to 15 mg of fluoximesterone + 6 mg of deflazacort daily for periods of 1 to several months) resulting in mild-acceptable toxicity (essentially some weight gain) determined subjective improvement In 2/3 of 34 evaluable patients (out of 36 treated) and an objective measurable tumor reduction in 1/3, although most patients had been previously treated with chemotherapy and hormone treatment and proved primarily or secondarily refractory. The receptor status at the beginning of fluoximesterone + deflazacort treatment was not known, except in one negative-receptor patient, who responded to the combination after becoming resistant to tamoxifen (see photo). In some patients the condition of hormone refractoriness would suggest a no-treatment policy, but a trial with this regime is always convenient as it may improve both duration and quality of life.

Pharmacokinetics and tumor concentration of intraarterial and intravenous cisplatin in patients with head and neck squamous cancer

Tumor-tissue platinum levels and major pharmacokinetic parameters were determined in 11 patients with head and neck squamous cancer (HNSC) who were given cisplatin (50 mg/m2 daily x 2 days) and 5-fluorouracil (5-FU; 1000 mg/m2, continuous infusion x 5 days) either i.a. or i.v. The plasma peak platinum concentrations (cmax) and the areas under the curve for total platinum concentration versus time (AUC) during i.a. infusions were lower than the i.v. cmax (mean, 1.92 +/- 0.28 and 4.08 +/- 2.80 mg/l, for i.a. and i.v. infusions, respectively) and AUC values (mean, 22.55 +/- 4.96 and 40.66 +/- 10.71 mg h-1 l-1 for i.a. and i.v. treatment, respectively), suggesting a first-passage extraction of the drug by the tumor mass during i.a. infusion. However, no statistically significant difference was found in platinum tumor concentrations after i.a. administration versus i.v. infusion. The lack of a difference in tumor platinum concentrations between the i.a. and the i.v. administration routes might be explained either by a relatively high blood supply to the tumor area, enabling efflux of the surplus free platinum from the tissue, or by the delay between drug infusion and biopsy. After three cycles of i.a. treatment good tumor remission was obtained with minimal local toxicity. Larger clinical studies testing the advantages of the i.a. administration route over i.v. infusion appear to be necessary.

Phase II study of cisplatin, 5-FU, and allopurinol in advanced esophageal cancer

Forty patients with advanced squamous cell carcinoma of the esophagus were treated with a combination of cisplatin, 5-FU (by continuous 5-day infusion), and allopurinol; 37 are evaluable for response. Thirteen remissions (35%) were obtained, including three complete and ten partial, with a median duration of 9 months. After chemotherapy, seven responding patients underwent a surgical procedure, which was radical in four. The most frequent side effects were nausea and vomiting. This regimen is effective and can be included in a multimodality approach.

Peptichemio in advanced breast cancer: a clinical evaluation in 32 patients

A clinical evaluation of peptichemio (40-45 mg/m2/day for 3 days every 3-4 weeks) was conducted in 32 patients with advanced breast cancer, 28 of whom were evaluable for both toxicity and response. The overall response rate was 18% (one complete remission and four partial remissions), with a median duration of 4 months (range, 2-6). The major side effects were cumulative myelotoxicity, phlebitis, mild nausea, and vomiting. A posttreatment heparin infusion was used to prevent phlebitis.

Peptichemio in pretreated patients with ovarian cancer

From January 1978 to October 1982, 47 patients with histological diagnosis of epithelial cancer of the ovary received peptichemio (PTC) at a dose of 70 mg/m2 (maximum, 120 mg total) every 15 days. Forty-two patients are now evaluable: 27 with stage III and 15 with stage IV disease. All patients but four with stage IV disease had been pretreated and had received at least one drug combination (median, three drugs per patient, including alkylating agents). Before the administration of PTC, the tumor extension in the abdomen was carefully assessed in all patients: ten patients had residual tumor less than 2 cm in diameter, while 32 patients had tumor greater than 2 cm in diameter. Objective responses were obtained in ten patients (23.8%): six complete remissions and one partial remission were observed in stage III patients and one complete remission and two partial remissions were observed in stage IV patients. Of the ten responding patients, eight had tumors less than 2 cm in diameter before receiving PTC. The median duration of response was 16 months. The most frequent side effects were myelosuppression and phlebosclerosis. Bone marrow depression was a common finding after the third course in heavily pretreated patients. Accordingly, in these patients a schedule interval of 3 weeks should be more appropriate. Since most of the responders were in the "small tumor" category, PTC appears to be an active drug in patients with ovarian cancer having small tumors (less than 2 cm). On the other hand, the response rate in a nonselected population of patients remains to be clearly defined with further studies.

Cisplatin, bleomycin and methotrexate in the treatment of advanced oesophageal cancer

From February 1981 to September 1982, 34 patients with metastatic or locally advanced (inoperable) epidermoid carcinoma of the oesophagus were treated with a combination of cisplatin, bleomycin and methotrexate. Thirty-one patients are now evaluable for response: 16 of 31 (52%) experienced some improvement, but only eight (26%) obtained major responses (one complete and seven partial). Responses were obtained rapidly within the first two courses. The median duration of responses was 5 months. The median survival from start of therapy was 8 months for responsive and 5 months for non-responsive patients. Gastrointestinal toxicity (cisplatin-related) and mild myelosuppression were the most prominent side-effects. This combination chemotherapy proved to be only of small efficacy in the long-term control of advanced oesophageal cancer. However, because the responses were obtained rapidly, it is conceivable that a similar regimen (with increased dosage of cisplatin) applied before surgery to patients with limited disease could obtain a reduction of the bulky tumour, with a possible increase of the resectability rate and destruction of micrometastases.

Cis-Dichlorodiammineplatinum (II), VP 16-213, and Prednisone (Dvp Regimen) in the Treatment of Pretreated Advanced Malignant Lymphomas

Eighteen evaluable patients with advanced malignant lymphoma were treated with a combination of cis-dichlorodiammineplatinum (II) (50 mg/m2 i.v. on day 1), VP 16-213 (100 mg/m2 i.v. on days 1, 3, 5), and prednisone (50 mg/m2 per os on days 1–5), recycling every 2 weeks. All patients were previously pretreated. There were 3 complete remissions (patients with Hodgkin's disease), and 4 partial remission (2 patients with Hodgkin's and 2 with non-Hodgkin's lymphoma), for a median duration of 8 weeks. In addition, 2 minor responses (patients with Hodgkin's disease) were observed. Vomiting and myelosuppression were the most prominent toxic effects. In most heavily pretreated patients, myelosuppression was moderate to severe: in these patients and in patients with bone marrow involvement, a schedule interval of 3 weeks should be more appropriate. Nephrotoxicity was minimal. This combination chemotherapy showed some activity in the management of advanced malignant lymphomas; further studies in this area are justified.