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S E O'Reilly

Publications and source records attributed to S E O'Reilly.

At least 19 recordsLinked to original sources

Regimen-related toxicity and non-relapse mortality with high-dose cyclophosphamide, carmustine (BCNU) and etoposide (VP16-213) (CBV) and CBV plus cisplatin (CBVP) followed by autologous stem cell transplantation in patients with Hodgkin's disease.

This analysis compares the regimen-related toxicity (RRT) and overall non-relapse mortality (NRM) in Hodgkin's disease patients conditioned with either CBV (cyclophosphamide, BCNU (carmustine), and VP16-213 (etoposide)) (26 patients) or CBVP (CBV + cisplatin) (68 patients) followed by autologous stem cell transplantation (ASCT). CBVP included a continuous infusion rather than intermittent doses of etoposide, a lower BCNU dose and the addition of cisplatin. RRT and NRM were determined for each regimen and compared; risk factors for each were examined by multivariate analysis. Grade IV (fatal) RRT occurred in five patients (pulmonary in two, cardiac in two, and central nervous system in one). Eighteen patients experienced grade II-III pulmonary RRT, consistent with BCNU damage in 15. Prior nitrosourea exposure was the main risk factor for pulmonary RRT. Grade II mucosal and hepatic RRT occurred less often after CBVP vs CBV (P = 0.031 and 0.0003, respectively). In addition, three other early and eight late non-relapse deaths were seen. Median follow-up of the entire group is 5.1 (range 2.8-10.2) years. The probability of overall NRM was 26% (95% confidence interval (CI) 13-50%) with CBV vs 23% (95% CI 12-41%) with CBVP (P = 0.40). The progression-free survival and relapse rates were similar. Although the rates of fatal RRT, pulmonary RRT and overall NRM were similar with CBV or CBVP, CBVP produced less mucosal and liver RRT with a comparable antitumor effect. As many autografted patients are cured, future efforts should include measures to decrease NRM.

Adult↗

Prognostic significance of Bcl-2 protein expression and Bcl-2 gene rearrangement in diffuse aggressive non-Hodgkin's lymphoma.

The prognostic significance of Bcl-2 protein expression and bcl-2 gene rearrangement in diffuse large cell lymphomas (DLCL) is controversial. Bcl-2 protein expression prevents apoptosis and may have an important role in clinical drug resistance. The presence of a bcl-2 gene rearrangement in de novo DLCL suggests a possible follicle center cell origin and perhaps a distinct clinical behavior more akin to low-grade non-Hodgkin's lymphoma (NHL). The purpose of this study was to determine the impact of Bcl-2 protein expression and bcl-2 gene rearrangement (mbr and mcr) on survival of a cohort of patients with DLCL who were uniformly evaluated and treated with effective chemotherapy. Patients included the original MACOP-B cohort (n = 121) and the initial 18 patients treated with the VACOP-B regimen (total = 139). All patients had advanced-stage disease, were 16 to 70 years old, and corresponded to Working Formulation categories F, G, or H. No patients had prior treatment, discordant lymphoma, or human immunodeficiency virus seropositivity. Paraffin sections from diagnostic biopsies were analyzed for bcl-2 gene rearrangement including mbr and mcr breakpoints by polymerase chain reaction and Bcl-2 protein expression by immunohistochemistry. With a median follow-up of 81 months, overall (OS), disease-free (DFS), and relapse-free survival (RFS) were measured to determine the prognostic significance of these parameters. Analyzable DNA was present in 118 of 139 (85%) cases, with 14 demonstrating a bcl-2 rearrangement (11 mbr, 3 mcr). All 14 of these bcl-2 gene rearrangement-positive cases were found in the 102 patients with a B-cell immunophenotype, but the presence of this rearrangement had no significant influence on survival. Bcl-2 protein expression was interpretable in 116 of 139 (83%) cases, with immunopositivity detected in 54 of 116 (47%). Using a cut-off of greater than 10% Bcl-2 immunopositive tumor cells for analysis, positive Bcl-2 protein expression was seen in 28 of 116 (24%) patients and the presence of this expression correlated with decreased 8-year OS (34% v 60%, P < .01), DFS (32% v 66%, P < .001), and RFS (25% v 59%, P < .001). Bcl-2 protein expression remained significant in multivariate analysis that included the clinical international prognostic index factors and immunophenotype (P < .02). In conclusion, although bcl-2 gene rearrangement status could not be shown to have an impact on outcome, Bcl-2 protein expression is a strong significant predictor of OS, DFS, and RFS in DLCLs.

Adolescent↗

Treatment considerations in the elderly patient with lymphoma.

One half of all non-Hodgkin's lymphomas occur in the elderly, a growing segment of the population in North America. Significantly, the incidence of lymphoma in general, and especially in the elderly, is rising rapidly. These trends will combine to double the number of cases of lymphoma in the elderly in the next 2 to 3 decades. Certain lymphomas can be treated as effectively in the elderly as in the young, and others are treatable but with only half the expectation of cure. Further improvements will be made as future clinical investigation focuses on the elderly with lymphoma as a special group.

Age Factors↗

Treatment of advanced Hodgkin's disease with chemotherapy--comparison of MOPP/ABV hybrid regimen with alternating courses of MOPP and ABVD: a report from the National Cancer Institute of Canada clinical trials group.

PURPOSE: This randomized, prospective trial compares outcomes for patients with advanced Hodgkin's disease treated with mechlorethamine, vincristine, procarbazine, and prednisone (MOPP)/doxorubicin, bleomycin, and vinblastine (ABV) hybrid regimen or alternating MOPP/doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD). METHODS: Three hundred one patients with advanced Hodgkin's disease were randomized to receive MOPP/ ABV hybrid regimen or alternating MOPP/ABVD after stratification for prior treatment, B symptoms, and treatment center. Eligible patients were either previously untreated and found to have stage IIIB, IVA, or IVB disease or previously treated with wide-field irradiation. Responding patients received a minimum of eight cycles of chemotherapy. Those with residual disease in a localized region received irradiation between the sixth and seventh cycle of treatment. RESULTS: Response rates to the two regimens were similar. Five-year overall survival rates were 81% and 83% for MOPP/ABV hybrid and alternating MOPP/ ABVD, respectively (P = .74; 95% confidence interval [CI] for the difference, -11% to 7%). Five-year failure-free survivals were 71% and 67% for MOPP/ABV hybrid and alternating MOPP/ABVD, respectively (P = .87; 95% CI for the difference, -9% to 17%). Significantly more episodes of febrile neutropenia and stomatitis were observed with the MOPP/ABV hybrid regimen; there was no significant difference in fatal toxicity. Patients with predefined, high-quality partial responses (PR-1s) had results similar to those with complete responses (CRs). Planned subset analysis showed no significant difference in outcome between the two arms of the trial for patients with newly diagnosed disease (5-year failure-free survival rates were 70% for MOPP/ABV hybrid and 59% for alternating MOPP/ABVD; P = .180), but superiority of alternating MOPP/ABVD for patients with prior irradiation (5-year failure-free survival 94% v 73%; P = .017). CONCLUSION: MOPP/ABV hybrid and alternating MOPP/ABVD regimens are equally effective for patients with advanced Hodgkin's disease.

Actuarial Analysis↗

Late relapse in patients with diffuse large-cell lymphoma treated with MACOP-B.

PURPOSE: To examine the clinical course of patients who experienced a late relapse after initial curative chemotherapy for advanced-stage diffuse large-cell lymphoma. PATIENTS AND METHODS: Between April 1981 and June 1986, 127 patients with de novo advanced-stage diffuse large-cell lymphoma were treated with a 12-week chemotherapy program (methotrexate, doxorubicin, cyclophosphamide, vincristine, prednisone, and bleomycin [MACOP-B]). The overall survival rate at 10 years is 52%. One hundred six patients (83%) entered a complete remission (CR) and 43 of them relapsed. With a median follow-up duration of 146 months, 26 patients relapsed early and 17 relapsed late, ie, after a continuous CR (cCR) of greater than 24 months. All late relapses occurred in patients with B-cell lymphoma. RESULTS: After 24 months from diagnosis, the rate of late relapse averaged 2.2% per year and reached a projected 22% actuarial risk of late relapse after 10 years. The median time to late relapse was 69 months (range, 38 to 141). Ten patients relapsed with aggressive histologic subtypes and were treated with curative intent using anthracycline-based chemotherapy. Four remain in second CR, one is alive with disease, and five died of disease or while on treatment. The 6-year overall survival rate from the time of relapse (SFR) for these 10 patients is 42%. Six patients relapsed with low-grade follicular lymphoma. These patients received various treatments intended to control, but not necessarily cure disease. One is in second CR, one is alive with disease, and four died of disease or while on treatment. The 6-year overall SFR rate for these six patients is 40%. bcl-2 translocation and Bcl-2 protein expression at diagnosis did not predict for the type of late relapse. One patient did not undergo repeat biopsy at relapse and died 9 months later despite aggressive therapy. CONCLUSION: Curative therapy should be attempted in patients who relapse late with aggressive-histology lymphoma and those who relapse with follicular histology may benefit from palliative treatment. The behavior of late-relapse lymphoma is similar to de novo lymphoma, with outcome dictated by the histologic subtype at relapse.

Adult↗

Malignant lymphomas in the elderly.

More than half of all lymphomas occur in patients aged 60 years or older. This article reviews the management of low-grade and aggressive histology lymphomas in patients older than age 65. Cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) chemotherapy is well tolerated in patients who have a good performance status and who have aggressive histology lymphoma, but briefer 8-week regimens appear to offer similar benefits more quickly. Age alone is an adverse prognostic factor for lymphomas, but when possible, patients should be offered effective treatment tailored for their age performance status and intercurrent diseases.

Aged↗

Phase I/II trial of biweekly paclitaxel and cisplatin in the treatment of metastatic breast cancer.

PURPOSE: To determine the maximum-tolerated dose of escalating doses of paclitaxel (Taxol; Bristol-Myers Squibb, Princeton, NJ) administered biweekly with a fixed dose of cisplatin, to assess the toxicity, and to evaluate the activity of this combination in a phase I/II trial in metastatic breast cancer. PATIENTS AND METHODS: Twenty-nine women with metastatic breast cancer were enrolled; 27 were assessable for response and 29 for toxicity. All but two of the women had received prior adjuvant chemotherapy, with 23 receiving anthracyclines and six previous cisplatin. RESULTS: The initial starting dose of paclitxel 90 mg/m2 and cisplatin 60 mg/m2 became the phase II dose due to dose-limiting neutropenia. Responses were seen in 85% of assessable patients, with three patients (11%) achieving a complete response (CR) and 20 patients (14%) a partial response (PR), for an overall response rate of 85% (95% confidence interval [CI], 66% to 96%). The time to disease progression for patients who achieved a CR was 110 to 200 days, and for those with a PR, it was 96 to 377+ days, with a median time to progression of 7.1 months and a median response duration of 7.9 months. Sites of CR were skin, soft tissue, and lung, and all occurred in women with previous exposure to anthracyclines. Septic events were rare, with two grade 3 infections (7%), only one of which required hospital admission. There were no grade 4 nonhematologic toxicity and minimal grade 3 toxicity. A total of 251 chemotherapy cycles were given -- 16 with paclitaxel alone in five patients. Forty-five percent of patients required dose reductions, while 52% had delays due to neutropenia. CONCLUSION: Biweekly paclitaxel and cisplatin is an active combination in the treatment of metastatic breast cancer, including for patients with previous exposure to anthracyclines.

Adult↗

Biweekly paclitaxel and cisplatin: a phase I/II study in the first-line treatment of metastatic breast cancer.

An ongoing phase I/II trial in patients with chemotherapy-naive metastatic breast cancer (one adjuvant chemotherapy regimen is allowed) uses a 3-hour infusion of paclitaxel (Taxol; Bristol-Myers Squibb Company, Princeton, NJ) 90 mg/m2 followed by a 3-hour infusion of cisplatin 60 mg/m2 every 2 weeks given with standard premedications. The protocol called for the escalation of paclitaxel in 10 mg/m2 increments to as much as 130 mg/m2 combined with a fixed 60 mg/m2 cisplatin dose without granulocyte colony-stimulating support in the phase I portion of the trial, but dose-limiting neutropenia identified the initial 90 mg/m2 paclitaxel dose as the maximum tolerated in this biweekly schedule. The phase II portion is continuing to accrue patients and results are preliminary. Twenty-two patients have been enrolled thus far. Of the 16 evaluable for response, four (25%) have had a complete and II (69%) a partial response, for an overall response rate of 94%. Eighteen patients are evaluable for toxicity. Significant neutropenia has been dose limiting, but the mean duration of the absolute neutrophil nadir (< 0.5 x 10(9)/L) is only 2 days. Nonhematologic toxicity has been generally mild, with no grade 4 and few grade 3 toxicities occurring. Nausea, most likely attributable to cisplatin, has occurred frequently, as have mild hypersensitivity reactions. Other nonhematologic toxicity (arthralgias, fatigue, neurologic symptoms) also has been mild.

Antineoplastic Combined Chemotherapy Protocols↗

In search of an optimal regimen for elderly patients with advanced-stage diffuse large-cell lymphoma: results of a phase II study of P/DOCE chemotherapy.

PURPOSE: The results of a prospective, phase II trial of an 8-week treatment program consisting of epirubicin or doxorubicin, vincristine, cyclophosphamide, etoposide, and prednisone (P/DOCE) for elderly patients with advanced large-cell lymphoma are reported and compared with previous phase II studies conducted in similar patients at the same institution. PATIENTS AND METHODS: Between March 1988 and September 1991, 63 previously untreated patients aged 65 to 85 years (median, 75) with advanced-stage diffuse large-cell lymphoma, defined as Ann Arbor stage III or IV or stage I or II with B symptoms or bulky disease, were enrolled on a brief, 8-week protocol consisting of five outpatient chemotherapy treatments. RESULTS: The complete response (CR) rate was 62%. The treatment-related mortality rate was 8%, the actuarial 4-year failure-free survival (FFS) rate was 41%, and the overall survival (OS) rate was 45%. These results were compared with two earlier, 12-week protocols, low-dose doxorubicin, cyclophosphamide, vincristine, bleomycin, and prednisone (LD-ACOB-B) and etoposide, doxorubicin, bleomycin, and prednisone (VABE), performed at the same center. There was no difference in outcome among the three regimens. If all 133 patients treated on any one of these three specially designed regimen for elderly patients are combined, the projected 5-year OS rate is 38%. CONCLUSION: The 8-week P/DOCE chemotherapy regimen is equal in efficacy and similar in toxicity to 3 months of chemotherapy administered on a weekly schedule and similar to the results reported in the literature for longer, anthracycline-based chemotherapy treatments. There does not appear to be any improvement in outcome from more protracted treatment programs compared with the 8-week P/DOCE protocol.

Aged↗

Phase I trial of recombinant human granulocyte-macrophage colony-stimulating factor derived from yeast in patients with breast cancer receiving cyclophosphamide, doxorubicin, and fluorouracil.

PURPOSE: To establish the optimum biologic dose and maximal-tolerated dose (MTD) of once-daily, subcutaneous recombinant human granulocyte-macrophage colony-stimulating factor derived from yeast (RhuGM-CSF) in patients with breast cancer. PATIENTS AND METHODS: Seventeen patients with either newly diagnosed breast cancer with more than four involved axillary nodes (five patients) or metastatic breast cancer (12 patients) were treated with cyclophosphamide 1 g/m2, doxorubicin 50 mg/m2, and fluorouracil 500 mg/m2 (CAF) intravenously (IV) once every 3 weeks. RhuGM-CSF was administered subcutaneously once daily for 14 days after the second and third CAF cycles, at one of three dose levels. RESULTS: The 125-micrograms/m2/d RhuGM-CSF dose level shortened the duration of neutropenia in only one of three patients. The 250-micrograms/m2/d level was effective in shortening the duration of the neutropenic nadir (< .5 x 10(9)/dL) by 2 or more days in five of six patients. The 500-micrograms/m2/d level caused severe toxicity (chest pain, two patients; deep vein thrombosis, one patient) in three of eight patients. CONCLUSION: RhuGM-CSF administered once daily at the 250-micrograms/m2/d level is well tolerated and effective in shortening the duration of the neutrophil nadir by 2 or more days after CAF therapy.

Adenocarcinoma↗

Is there a role for MACOP-B in the treatment of diffuse large cell lymphoma?

Between 1981 and 1986, 126 patients with advanced stage, large cell lymphoma were treated with MACOP-B chemotherapy. Their six-year failure-free and overall survival is 52% and 62% respectively. Eighty-eight patients aged 60 or less had an excellent six year overall survival of 68%. The outcome for various subsets of patients is analysed according to the number of adverse prognostic factors including age, stage, lactic dehydrogenase level and number of extra nodal sites.

Adult↗

Treatment of multiple myeloma with intensive chemotherapy followed by autologous BMT using marrow purged with 4-hydroperoxycyclophosphamide.

In August 1988 we began a program in which multiple myeloma patients achieving < or = 10% marrow plasma cells and > or = 50% reduction in paraprotein levels after the VAD (vincristine, doxorubicin, dexamethasone) regimen underwent bone marrow harvest, ex vivo marrow purging with 4-hydroperoxycyclophosphamide (4-HC) and marrow cryopreservation. Conditioning with a regimen of high-dose busulfan (total dose 16 mg/kg), cyclophosphamide (120 mg/kg) and melphalan (90 mg/m2) (BU + CY + MEL) followed by autologous BMT was then carried out. Seventeen of the 24 patients who received VAD (71%, 95% confidence interval [CI] 49 to 87%) were eligible for bone marrow harvest. One patient was not harvested because of non-medical reasons; two patients who underwent marrow harvest had gross plasmacytosis present in biopsies performed intraoperatively and did not undergo BMT. Fourteen patients (58%, 95% CI 37 to 78%) received BU + CY + MEL and 4-HC-purged autologous BMT. The median time to recovery of 0.5 x 10(9)/l neutrophils was 19 days (range 14 to 26) while the last platelet transfusion was given on a median of day 32 (range 10 to 46) post-BMT in the evaluable patients. The major non-hematologic toxicity was hepatic; two patients in complete remission died of hepatic veno-occlusive disease. Another patient succumbed to fungal infection despite neutrophil recovery. The remaining 11 patients achieved responses (complete in six and partial in five) associated with a normal performance status.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

A novel particulate influenza vaccine induces long-term and broad-based immunity in mice after oral immunization.

The immunogenicity of a novel particulate oral influenza vaccine was examined in terms of antibody response and protection in mice. Oral immunization with chicken erythrocytes (CRBC) adsorbed with gamma-irradiated influenza A virus induced high levels of immunoglobulin G antibodies and protection in the lung compared with gamma-irradiated virus administered alone or CRBC. Immunoglobulin A antibodies were the predominant antibodies in nasal washings, and their presence did not correlate with protection as well as immunoglobulin G antibodies. Immunity was not specific for the immunizing virus subtype, as antibodies and enhanced lung clearance of virus were demonstrated with different virus subtypes. However, mice were not protected when challenged with live influenza B virus. The antibody response and the degree of protection were dependent on both the concentration of virus adsorbed to CRBC and number of CRBC adsorbed to virus. Virus-adsorbed CRBC given subcutaneously failed to induce antibodies or protection. Oral immunization with A/Qld/6/72 (H3N2) virus gave a high level of protection over 12 weeks, which could be demonstrated with different subtypes. Protection correlated with antibody levels in the lung determined by both enzyme-linked immunosorbent and hemagglutination inhibition assays, although the levels detected by the latter declined over time.

Animals↗

Ten-year outcome of patients with advanced epithelial ovarian carcinoma treated with cisplatin-based multimodality therapy.

PURPOSE: At the end of the 1970s it was thought that advanced epithelial ovarian cancer (EOC) could be cured by multimodality treatment using surgery, cisplatin-based combination chemotherapy, and radiotherapy (RT). Such multimodality treatment was used as standard therapy at our institution. Our long-term results are reviewed. PATIENTS AND METHODS: One hundred ninety-five previously untreated patients with stage III or IV EOC were treated between April 1979 and December 1982. All patients were to have debulking surgery, when feasible, followed by the administration of doxorubicin and cisplatin at 50 mg/m2 every 3 weeks until a total dose of doxorubicin of 450 mg/m2 had been reached. RT was used in addition in patients with disease remaining after the chemotherapy. Maintenance chemotherapy with oral cyclophosphamide and hexamethylmelamine (altretamine) was administered to patients who did not have a documented histologic complete remission. RESULTS: The 10-year overall and failure-free survivals were 4% and 8%, respectively. The median overall survival was 2 years. The achievement of a histologic complete response (n = 32) did not equate to cure because 20 (63%) of the patients eventually relapsed. Multivariate analysis identified residual disease of greater or less than 2 cm as the only independent prognostic factor. CONCLUSIONS: Our multimodality treatment program was noncurative for the majority of the patients. Innovative therapies are needed before we can hope to cure such disease.

Adult↗

Outcome of treatment of first relapse of Hodgkin's disease after primary chemotherapy: identification of risk factors from the British Columbia experience 1970 to 1988.

The outcome of treatment for a first relapse of Hodgkin's disease after primary chemotherapy was analyzed in 80 patients. They were divided into four groups: group 1 (n = 24) had initially been treated with three cycles of (mechlorethamine, vincristine, prednisone, and procarbazine [MOPP]) and wide-field irradiation therapy; group 2 (n = 25) had six cycles of MOPP; group 3 (n = 15) and group 4 (n = 16) both initially received MOPP/ABVD (MOPP plus doxorubicin, bleomycin, vinblastine, and dacarbazine) or MOPP/ABV hybrid, but group 3 received conventional salvage regimens whereas group 4 was treated with high-dose chemotherapy and autologous bone marrow transplantation as salvage therapy (n = 16). Freedom from second failure (FF2F) was used as the major endpoint. Actuarial FF2F for all patients was 38% after a median follow-up of 75 months for patients who were alive. Risk factor analysis was performed on the 71 patients who had been treated with curative intent. The presence or absence of any one of three risk factors had a strong negative impact on outcome: stage IV disease at primary diagnosis, B symptoms at relapse, or a time from primary treatment to relapse of less than 1 year. Actuarial FF2F at 5 years was 17% in the group of patients with one or more of these three factors present (n = 49). If none of these factors was present, FF2F was 82% (n = 22) (P less than .001). Even high-dose chemotherapy and autologous bone marrow transplantation were not able to overcome the negative impact of one or more risk factors (FF2F = 19%, n = 12). The outcome of salvage treatments depends most on the presence or absence of these three risk factors and less on the type of salvage treatment. Patients with none of these risk factors present have an excellent outcome if they are treated with non-cross-resistant chemotherapy, or radiotherapy, or both. Novel approaches are needed for patients with one or more of these factors present. Reports on salvage treatments for Hodgkin's disease in first relapse after primary chemotherapy should include data on the proportion of patients having stage IV disease at diagnosis, B symptoms at relapse, and a time from primary treatment to relapse of less than 1 year.

Adolescent↗

The evolving role of etoposide in the management of lymphomas and Hodgkin's disease.

Etoposide, a derivative of epipodophyllotoxin, is one of the most important new drugs that was introduced into the management of the malignant lymphomas during the past decade. A growing number of specific protocols include this useful agent in the management of malignant lymphoma, both at the time of primary treatment and at relapse. The broad activity of etoposide across several histologic subtypes of malignant lymphoma and Hodgkin's disease indicates a potential that is only now being fully exploited. Used according to optimal doses and schedules, etoposide has single-agent activity that rivals earlier drugs such as the alkylating agents and doxorubicin. Functioning as a protein synthesis and topoisomerase II inhibitor, it offers the potential for non-cross-resistant cytotoxicity. After a brief comment on the single-agent activity of etoposide, this report will focus on the integration of etoposide into multiagent protocols used in the primary treatment of malignant lymphoma and Hodgkin's disease. The specific findings from protocols such as prednisone, methotrexate, doxorubicin, cyclophosphamide, etoposide-cytarabine, bleomycin, vincristine, and methotrexate (Pro-MACE-CytaBOM) (US National Cancer Institute [NCI]) and etoposide, doxorubicin, cyclophosphamide, vincristine, prednisone, and bleomycin (VACOP-B) (Vancouver) for the primary treatment of malignant lymphoma, and vinblastine, etoposide, cyclophosphamide, doxorubicin, bleomycin, vincristine, and prednisone (VECABOP) (Vancouver) for the treatment of previously untreated patients with advanced Hodgkin's disease will be discussed.

Antineoplastic Combined Chemotherapy Protocols↗