Third generation chemotherapy with P-VABEC for aggressive non-Hodgkin's lymphomas of the elderly

Efficacy and toxicity of liposomal daunorubicin included in PVABEC regimen for aggressive NHL of the elderly

Liposomes used for delivering antineoplastic drugs to sites of disease are able to minimize side effects and enhance therapeutic efficacy. Liposomal Daunorubicin (Daunoxome; DNX) has a selective and higher accumulation in neoplastic tissues and seems to be able to escape Multi-Drug Resistance (MDR). We treated 35 elderly patients with aggressive non-Hodgkin's lymphoma (NHL) with PVBECDNX, a regimen analogue to P-VABEC in which doxorubicin is replaced with DNX at a dose of 50 mg (first 13 patients) and thereafter 50 mg/m2. Twenty-six out of 35 patients were evaluable for response; 15 obtained a CR, 5 a PR (overall response rate of 77%). After a median follow-up of 13 months the 2-years actuarial overall survival was 75% and the failure-free survival was 71%. Two patients out of six no responders died because of progression of disease, and one died in CR because of pre-existing cardiovascular disorders. Eight patients did not tolerate DNX infusion (back pain). Non-haematological toxicity was mild. This study confirms that PVABEC-like regimens are able to induce a high overall response rate in a percentage of patients affected by aggressive lymphoma and shows that DNX is as effective as Daunorubicin in these disorders, but its acute toxicity is reduced.

Treatment of large cell lymphoma in elderly patients with a mitoxantrone, cyclophosphamide, etoposide, and prednisone regimen: long-term follow-up results

BACKGROUND

Patients with aggressive non-Hodgkin lymphoma (NHL) require intensive and extensive therapy, which seems impracticable in elderly patients due to hematologic and extrahematologic toxicity. Consequent dose reduction and therapy attenuation can reduce treatment-related toxicity but also decreases therapeutic efficacy. Thus, age represents a fundamental prognostic factor that has a profound influence on both therapeutic decisions and patient outcome.

METHODS

Between January, 1990 and June, 1997, 145 patients age > 64 years (median age, 72.3 years) with a diagnosis of aggressive NHL were treated on a chemotherapy regimen that consisted of mitoxantrone, cyclophosphamide, etoposide, and prednisone.

RESULTS

Ninety-one patients (63%) achieved complete remission, and 48 patients (33%) achieved partial remission, for an overall response rate of 96%. Six patients (4%) were resistant to therapy. The overall survival rate, with a median follow-up of 66 months, was 44%, and the failure free survival rate was 42%. The disease free survival rate was 63.5%, with a median follow-up of 60 months. Multivariate survival analysis showed that the achievement of complete remission was the single most important prognostic factor, which was associated significantly with longer survival (P < 0.0001). Toxicity was moderate, with 5 deaths (3%) due to complications related to therapy.

CONCLUSIONS

The current results confirm that a protocol devised specifically for elderly patients may reduce toxicity and allow longer overall survival in this particular subset of patients.

Aggressive lymphoma in the elderly

Persons 65 years of age and older are the fastest growing segment of the United States population. Over the next 30 years they will comprise approximately 20% of the population. There will be a parallel rise in the number of patients with non-Hodgkin's lymphoma. Age has long been known to be an adverse prognostic factor. Clinical trials of older patients are complicated by the effect of comorbid illness, particularly its effect on overall survival. CHOP (cyclophosphamide, Adriamycin, vincristine, prednisone) remains the standard therapy for all patients with aggressive non-Hodgkin's lymphoma. There are a number of regimens which may be beneficial for older patients with significant comorbidity and poor performance status. The randomized trials in the elderly has reaffirmed CHOP and emphasize the need for adequate dosing, maintaining schedule and anthracyclines. Relapsed patients have a poor prognosis but selected fit older patients may benefit from aggressive reinduction regimens and possibly bone marrow transplantation. Future research should include defining the role of comorbidity, measurement of organ dysfunction and assessment of performance status with geriatric functional scales. New drug treatments should also be explored.

Treatment of non-Hodgkin's lymphoma in the elderly: an update

Recent studies specifically directed toward assessing the outcome of older patients with non-Hodgkin's lymphoma (NHL) indicate that age per se is an important and independent prognostic factor for response and survival. We report a review of the clinical trials of the literature and the Aviano Group experience in the treatment of NHL in the elderly. Prospective studies have addressed therapeutic approaches in these patients. Direct comparison of trial results is difficult since different age limits were set for the inclusion of patients under study. These studies suggest that older patients with aggressive NHL should be treated with curative intent.

Dose escalation of epirubicin in the CEOP-BLEO regimen: a controlled clinical trial comparing standard doses for the treatment of diffuse large cell lymphoma

One hundred and forty-seven consecutive patients with previously untreated high-intermedium and high clinical risk diffuse large cell lymphoma (DLCL) were included in a prospective clinical trial to evaluate the efficacy and toxicity of escalating doses of epirubicin compared to standard doses in the CEOP-Bleo (cyclophosphamide, epirubicin, vincristine and prednisone and bleomycin) regimen, 55% of the patients were > 60 years old and most patients had adverse prognostic factors at diagnosis. Complete response rates were similar in both groups (68% in the standard dose compared to 73% in the escalating arm, (p = 0.5). However, time to treatment failure (TFF) and overall survival were better after escalating doses. At 3-years TTF at a medial follow-up of 33.6 months was 76% in the patients whose received escalating dose statistical different to 37% of the patients whose received standard doses (p < .01). Overall survival was 81% in the escalated therapy arm which is statistical different to 40% of the patients treated with standard doses (p < .01). Toxicity was mild in both arms. Neutropenia, mucositis and cardiotoxicity were mild in the escalated dose arm and no severe complications were observed. All patients received the planned doses of all drugs. Patients > 60 years old had the same CR rate, TTF and overall survival as younger patients. In conclusion it seems that the dose of epirubicin can be increased in combination chemotherapy regimens with safety and only mild toxicity. The CR rate was not superior compared to the standard dose but the TTF and overall survival were better. Longer follow-up periods are required in order to determine if the cure rate can also be improved. Older patients can also benefit because they also tolerated the increase in epirubicin without severe side effects and also improved their outcome. The use of more aggressive regimens with increase in dose intensity may be the treatment of choice for more patients poor prognosis, with DLCL provided there is no increase in toxicity. In this respect the use of epirubicin in higher doses/appears to be useful.

Consolidation therapy with idarubicin, cisplatin and prednisone (CIP) after P-VABEC regimen in the treatment of intermediate and high grade non-Hodgkin's lymphoma of the elderly

Aggressive treatments in elderly patients with NHL are often responsible for acute complications and increased mortality. The present study confirms that P-VABEC is able to induce a high CR rate (71%), with an overall response rate of 92%. The 4-year actuarial OS was 45%, and the FFS was 38%. Despite these good results 57% of CRs relapsed in a relatively short time (median 9.5 months; range 2-47). Because of this we decided to evaluate the role of a consolidation schedule (CIP), including idarubicin and cisplatin. The toxicity of P-VABEC/CIP regimen was comparable to that of P-VABEC alone. After a median follow-up of 20 months (range 8-49), 93% of CR patients treated with P-VABEC-CIP were still in complete remission. The 4-year actuarial overall survival was 92%, and the failure-free survival in CR patients was 72%. The difference in OS and FFS between the two groups was statistically significant. These results suggest that a short course of additional therapy is feasible in elderly patients treated with P-VABEC and may increase the OS and FFS, without adding toxicity.

Recombinant human granulocyte-macrophage colony-stimulating factor after combined chemotherapy in high-grade non-Hodgkin's lymphoma--a randomised pilot study

High-grade non-Hodgkin's lymphomas (NHL) can potentially be cured with combination chemotherapy, although the optimum schedules still have to be defined. Clinical trials with intensive chemotherapy are predominantly limited by myelosuppression. Here, haematopoetic growth factors open up the possibility of reducing chemotherapy-associated toxicities. In this randomised pilot study, we investigated the effects of a recombinant human granulocyte-macrophage colony-stimulating factor (rhGM-CSF) following combined chemotherapy with vincristine, doxorubicin, cyclophosphamide, prednisone and etoposide (VACPE). A total of 35 patients with high-grade NHLs were randomised to receive either rhGM-CSF or placebo during the first two chemotherapy cycles and rhGM-CSF for all following cycles. rhGM-CSF was administered at a dosage of 5 micrograms/kg for 10 days or until neutrophils were > 1/nl following chemotherapy. The analyses revealed a significant reduction of neutropenia and duration of neutropenia in the rhGM-CSF group. Adverse events were rare and generally mild apart from one anaphylactoid reaction. No effects of rhGM-CSF were observed concerning the platelet nadir or duration of thrombocytopenia. The benefit of rhGM-CSF for response induction and survival via rhGM-CSF-supported dose intensification remains to be determined.

Vincristine, doxorubicin, cyclophosphamide, prednisone and etoposide (VACPE) in high-grade non-Hodgkin's lymphoma--a multicenter phase II study

BACKGROUND

Patients with high-grade non-Hodgkin's lymphoma (NHL) can potentially be cured by intensive chemotherapy. However, many patients still die of their disease, which underscores the need to define patient groups with different long-term prognoses and for more effective and possibly risk-adapted treatment approaches.

PATIENTS AND METHODS

In this phase II study we investigated the feasibility and efficacy of a polychemotherapy consisting of 2 mg vincristine (V) on day 1, 25 mg/m2 doxorubicin (A) days 1-3, 800 mg cyclophosphamide (C) day 1, 60 mg/m2 prednisone (P) days 1-7 and 120 mg/m2 etoposide (E) days 1-3. This cycle (VACPE) was repeated on day 22 for up to 5 cycles in stages I-III and 6 cycles in stage IV, respectively, followed by consolidating radiotherapy in 38/73 patients. A total of 75 patients with high-grade NHLs according to the Kiel classification were eligible, and 73 patients are evaluable for response. The predominant histological subtypes were centroblastic, pleomorphic T-cell and large-cell anaplastic lymphomas, 60% of the patients presented with stage III/IV, 55% with a poor performance status (ECOG > or = 2), 53% with B symptoms and 60% with a LDH level >200 U/l.

RESULTS

57/73 patients achieved CR (78%), and the overall response rate (CR-PR) was 95%. The median observation time is 40 months (10+-74+). The 1-, 3- and 5-year overall survivals for the entire VACPE group were 79%, 64% and 61%, respectively. Forty-one patients are in ongoing CR with a continuous complete remission rate (CCR) of 67%. Fourteen of the 16 patients who relapsed (88%) did so within the first 24 months. The predicted 1-, 3- and 5-year DFS for those patients who achieved CR is 83%, 67% and 67%, respectively. The early mortality was 3/73 (4.1%). In patients with reduced performance status the overall survival (OS) (ECOG > or = 2) was significantly reduced, with a predicted 1-, 3- and 5-year survival of 62%, 49% and 49% versus 100%, 84% and 77% in patients with favorable performance status, respectively (p = 0.001). The predicted overall survival in stages III/IV is worse than in early stages with a 1-, 3- and 5-year probability of 73%, 52% and 52% versus 90%, 86% and 78%, respectively (p = 0.02). Comparison of patient groups with cumulative risk factors shows a significant decrease in overall survival. Especially in patients with 0-2 risk factors versus those presenting with >2 risk factors, there is a significantly better 3- and 5-year survival (p = 0.002). In contrast to overall survival, there were no differences between the listed risk groups concerning the disease-free survival of complete responders.

CONCLUSION

In conclusion, the VACPE regime is feasible and effective in high-grade NHLs and may also be administered on an outpatient basis. Despite encouraging data, however, a prospective randomized trial is warranted to define a possible superiority to standard CHOP. However, this regimen may be the basis for further randomized and risk adapted innovative approaches for high-grade NHLs.

A phase II trial of prednisone, oral etoposide, and novantrone (PEN) as initial treatment of non-Hodgkin's lymphoma in elderly patients

This phase II study was designed to improve the outcome of elderly patients with advanced aggressive non-Hodgkin's lymphomas (NHL's) by employing a novel chemotherapy regimen PEN (prednisone, oral etoposide and mitoxantrone), as initial treatment. Between July 1991 and September 1993, 43 patients (14 male, 29 female) aged 66-82 years (median 74) received 1-8 (median 4) courses of PEN (total 192) q28 days (prednisone 50 mg od x 14 days, oral etoposide 50 mg od x 14 days and mitoxantrone 8 mg/m2 i.v. day 1) in the ambulatory setting. Pathologies of patients' tumors classified by the Working Formulation (WF) included C = 4, D = 2, E = 1, F = 7, G = 25, H = 4. Eighteen patients (42%) had stage IV, 15 (35%) stage III, 9 (21%) stage II and 1 (2%) stage I disease. Nineteen patients (44%) had B symptoms, 7 (16%) primarily extranodal disease and 15 (35%) bone marrow involvement. Patients with congestive heart failure, current anti-failure medication or pretreatment Muga left ventricular ejection fraction (LVEF) of < 45% (median pretreatment 60%) were excluded from PEN. After a median follow-up of 8.5 months (range 1-30), 14 of 33 evaluable patients (42%) have achieved CR of their disease for 8+ months (range 4-19) and 6 (18%) PR for 6+ months (range 5-10), giving an overall response rate of 61%. Ten (30%) patients did not respond to PEN and 10 were not evaluable for response. Response to PEN was not predicted by any pretreatment characteristic.(ABSTRACT TRUNCATED AT 250 WORDS)

Alternating chemotherapy regimen (P-VABEC) for intermediate and high-grade non-Hodgkin's lymphoma of the middle aged and elderly

An intensive third generation regimen (P-VABEC) including adriamycin, etoposide, cyclophosphamide, vincristine, bleomycin and prednisolone was administered to 43 unselected elderly patients with intermediate or high-grade non-Hodgkin's lymphomas (NHL). The median age was 67, 40 per cent were Ann Arbor stage IV, 73 per cent had 'B' symptoms, 55 per cent had bulky disease, 48 per cent had serum lactate dehydrogenase greater than 450 U/l, 85 per cent had serum thymidine-kinase greater than 4 U/l. Thirty patients were previously untreated. The complete remission (CR) rate was 74 per cent, and the partial remission (PR) rate 23 per cent, with an overall response rate of 97 per cent. The regimen was carried out on an outpatient basis in all patients. No death occurred during therapy. The Kaplan-Meier actuarial survival of all patients at 3-years is 47 per cent, and 50 per cent (16/32) of all patients who attained CR remain alive and in remission at a median of 21+ months (range 6+ to 42+). These results confirm that high remission and failure-free survival rates can be achieved also in elderly unselected patients with aggressive NHL treated with curative intent.