Does combined dose intensification radiotherapy improve disease control in resectable retroperitoneal sarcoma? Long-term results of a phase I/II trial.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 10050-10050
Author(s):  
Myles JF Smith ◽  
Paul F Ridgway ◽  
Charles N Catton ◽  
Amanda Cannell ◽  
Brian O'Sullivan ◽  
...  

10050 Background: Late failure is a challenging problem in retroperitoneal sarcoma (RPS) and reported 10 yr overall survival (OS) rates range from 20-30%. Use of preoperative external beam radiotherapy (XRT) in the management of RPS remains controversial. No RCT and very few prospective trials of any type have been completed. We investigated the effects of preop XRT plus dose escalation with early postop brachytherapy (BT) on long term survival and recurrence in RPS. Methods: From 06/96 to 10/00, 40 patients (25 female) with resectable RPS were entered onto a phase I/II trial of preop XRT (50 Gy) plus postop BT (20-25 Gy). As previously reported, BT to the upper abdomen was associated with significant grade III-V postop toxicity, and from 12/98 on, BT was applied only to cases where the “field at risk” excluded the upper abdomen. Kaplan Meier survival curves were constructed; OS and recurrence free survival (RFS) were compared by log rank (SPSS 19.0). Results: Median age at study entry was 58 (38-70) yrs. Twenty nine patients presented to our center with primary disease (73%), and 22 (55%) had high grade tumors. All patients had preop XRT and total gross resection, while half (n=19) received BT. As of 12/2011, median follow-up time is 108 mos. For the entire study cohort, OS at 5 and 10 yrs were 70% and 65%, respectively; RFS at 5 and 10 yrs were 65% and 58%, respectively. RFS at 5 yrs was reduced in high vs. low grade RPS (50% vs. 83%, p=0.028), but by 10 yrs. was similar in high and low grade tumors (50% vs. 67%, p=ns). RFS was reduced in patients who presented with recurrent vs. primary disease (27% vs. 69% at 10 yrs., p=0.018), as was OS (36% vs. 76% at 10 yrs., p=0.034). Neither OS nor RFS was improved in the cohort of patients who received BT compared to the cohort who did not: at 10 yrs. RFS was 53% +BT and 62% -BT, while OS was 53% and 76%, respectively, p=ns. Conclusions: In this prospective study with mature follow-up, long term OS and RFS in patients who underwent combined preop XRT plus resection of RPS compare favorably with those reported in retrospective institutional and population-based series. Postoperative BT did not contribute to disease control.

VASA ◽  
2011 ◽  
Vol 40 (6) ◽  
pp. 474-481 ◽  
Author(s):  
Radak ◽  
Babic ◽  
Ilijevski ◽  
Jocic ◽  
Aleksic ◽  
...  

Background: To evaluate safety, short and long-term graft patency, clinical success rates, and factors associated with patency, limb salvage and mortality after surgical reconstruction in patients younger than 50 years of age who had undergone unilateral iliac artery bypass surgery. Patients and methods: From January 2000 to January 2010, 65 consecutive reconstructive vascular operations were performed in 22 women and 43 men of age < 50 years with unilateral iliac atherosclerotic lesions and claudication or chronic limb ischemia. All patients were followed at 1, 3, 6, and 12 months after surgery and every 6 months thereafter. Results: There was in-hospital vascular graft thrombosis in four (6.1 %) patients. No in-hospital deaths occurred. Median follow-up was 49.6 ± 33 months. Primary patency rates at 1-, 3-, 5-, and 10-year were 92.2 %, 85.6 %, 73.6 %, and 56.5 %, respectively. Seven patients passed away during follow-up of which four patients due to coronary artery disease, two patients due to cerebrovascular disease and one patient due to malignancy. Limb salvage rate after 1-, 3-, 5-, and 10-year follow-up was 100 %, 100 %, 96.3 %, and 91.2 %, respectively. Cox regression analysis including age, sex, risk factors for vascular disease, indication for treatment, preoperative ABI, lesion length, graft diameter and type of pre-procedural lesion (stenosis/occlusion), showed that only age (beta - 0.281, expected beta 0.755, p = 0.007) and presence of diabetes mellitus during index surgery (beta - 1.292, expected beta 0.275, p = 0.026) were found to be significant predictors of diminishing graft patency during the follow-up. Presence of diabetes mellitus during index surgery (beta - 1.246, expected beta 0.291, p = 0.034) was the only variable predicting mortality. Conclusions: Surgical treatment for unilateral iliac lesions in patients with premature atherosclerosis is a safe procedure with a low operative risk and acceptable long-term results. Diabetes mellitus and age at index surgery are predictive for low graft patency. Presence of diabetes is associated with decreased long-term survival.


2013 ◽  
Vol 5 (4) ◽  
pp. 34 ◽  
Author(s):  
Fritz Thorey ◽  
Claudia Hoefer ◽  
Nima Abdi-Tabari ◽  
Matthias Lerch ◽  
Stefan Budde ◽  
...  

In recent years, various uncemented proximal metaphyseal hip stems were introduced for younger patients as a bone preserving strategy. Initial osteodensitometric analyses of the surrounding bone of short stems indicate an increase of bone mass with secondary bone ingrowth fixation as a predictor of long-term survival of these types of implants. We report the outcome of 151 modular Metha short hip stem implants in 148 patients between March 2005 and October 2007. The mean follow-up was 5.8±0.7 years and the mean age of the patients was 55.7±9.8 years. Along with demographic data and co-morbidities, the Harris Hip Score (HHS), the Hip dysfunction and Osteoarthritis Outcome Score (HOOS), and also the results of a patient-administered questionnaire were recorded pre-operatively and at follow-up. The mean HHS increased from 46±17 pre-operatively to 90±5 the HOOS improved from 55±16 pre-operatively to 89±10 at the final follow-up. A total of three patients have been revised, two for subsidence with femoral revision and one for infection without femoral revision (Kaplan Meier survival estimate 98%). The radiological findings showed no radiolucent lines in any of the patients. The modular Metha short hip stem was implanted in younger patients, who reported an overall high level of satisfaction. The clinical and radiographic results give support to the principle of using short stems with metaphyseal anchorage. However, long-term results are necessary to confirm the success of this concept in the years to come.


Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 2024-2024
Author(s):  
Ryan D. Gentzler ◽  
Andrew M. Evens ◽  
Alfred W. Rademaker ◽  
Bharat B Mittal ◽  
Adam M. Petrich ◽  
...  

Abstract Abstract 2024 Background: For patients with relapsed or refractory HL, salvage chemotherapy followed by aHSCT is the standard of care. Our group previously reported excellent clinical outcomes with accelerated hyperfractionated TLI followed by high-dose chemotherapy and aHSCT (Ann of Oncol. 16:679, 2007). This strategy has been adopted as the standard at our institution for eligible individuals and we now report long-term outcomes of patients previously reported on the phase I/II clinical trial in addition to those who were subsequently treated as standard of care. Patients and methods: Patients with biopsy confirmed relapsed/refractory classical HL who previously received no more than 20 Gy were eligible. Salvage chemotherapy was chosen by the patient's treating physician. All patients received accelerated hyperfractionated TLI prior to transplantation administered twice daily at 150 cGy, five days/week for 10 days. The morning dose was delivered to all nodal sites including the spleen, and the afternoon dose was delivered to all sites of previous and current disease. The goal was to treat uninvolved nodal sites and spleen to 1500 cGy and sites of current and previous disease to 3000 cGy. Conditioning chemotherapy consisted of high-dose carboplatin, cyclophosphamide, and etoposide. All patients received carboplatin 450 mg/m2 by continuous intravenous infusion (CIV) on days –6 to –4 (total dose = 1350 mg/m2) and cyclophosphamide 60 mg/kg/day over 1 h on days –3 and –2 (total dose = 120 mg/kg). Patients on the phase I portion of the trial received escalating doses of etoposide by CIV from days –6 to –4. Initial dosing levels were 400 mg/m2/day, 450 mg/m2/day, 500 mg/m2/day, 600 mg/m2/day and 700 mg/m2/day. Those treated on the phase II portion of the clinical trial or subsequent to the closing of the trial were treated with etoposide 700 mg/m2/day for a total of 2100 mg/m2. Results: 52 patients with relapsed/refractory HL at Northwestern University were treated with TLI and aHSCT from 1993 to January 2011. One patient was lost to follow-up immediately post-transplant. 51 patients were included in this analysis and had a median follow-up of 47 months (range: 0.07–204 months). Thirty patients were treated on a previously reported prospective phase I/II clinical trial. Most patients had nodular sclerosis histology (n=39, 76%) and more than half had primary induction failure (PIF; n=29). Among patients who achieved a CR with induction, 62% relapsed within one year. The most common salvage regimens were ESHAP and ICE chemotherapy and most had received two lines of chemotherapy prior to aHSCT. Only 21 patients (41%) achieved a complete response (CR) with salvage therapy and in most cases (n=31, 61%), response was determined by functional imaging prior to aHSCT. The 10-year PFS and OS for all patients were 56% and 54%, respectively. Ten-year PFS and OS for patients with PIF was 53%, compared with 63% and 59%, respectively, for those with relapsed disease (p=0.13 and p=0.20, respectively). Patients who had incomplete responses to salvage therapy had a 10-year PFS and OS of 41% and 39%, respectively, compared to 76% and 81%, respectively, for those who achieved a CR (p=0.1 and p=0.056, respectively). Treatment-related mortality within the first 100 days was observed in one patient. Five patients (10%) developed secondary malignancies; three developed MDS (one who had received MOPP induction died with MDS; one had relapsed HL post-aHSCT and died of AML and one is alive with MDS 3+ yrs post-diagnosis). There was one case each of T-cell lymphoma (7 months post-aHSCT) and melanoma. Conclusions: Sequential TLI/chemotherapy conditioning for relapsed/refractory HL for patients with limited or no prior radiotherapy continues to be associated with excellent disease control and long-term survival rates including high-risk populations such as PIF and chemotherapy-resistant disease. Disclosures: No relevant conflicts of interest to declare.


1995 ◽  
Vol 83 (4) ◽  
pp. 583-589 ◽  
Author(s):  
Leslie N. Sutton ◽  
Patricia T. Molloy ◽  
Heidi Sernyak ◽  
Joel Goldwein ◽  
Peter L. Phillips ◽  
...  

✓ The feasibility of radical surgery for astrocytomas of the optic chiasm/hypothalamus has been reported by several groups. Such surgery carries significant risks, however, including permanent damage to the pituitary gland, optic apparatus, hypothalamic structures, and carotid arteries. The benefits of radical surgery, both in terms of efficacy and toxicity, should, therefore, be evaluated against standard therapy, as is usually done for new chemotherapeutic protocols. To this end, a retrospective review was performed of 33 patients treated at Children's Hospital of Philadelphia between 1976 and 1991 who met criteria that would have made them eligible for radical surgery in many centers today, but were treated with either no surgery or conservative surgery (< 50% resection) or biopsy followed by adjuvant therapy with local radiation therapy (29 patients) and/or chemotherapy with actinomycin-D and vincristine (18 patients). The review encompassed all children with a globular enhancing mass of at least 2 cm in the hypothalamic/chiasmatic region, no evidence of optic nerve involvement or involvement of the optic radiations by computerized tomography or magnetic resonance imaging, and follow up of at least 3 years. All but one patient had tissue confirmation of a low-grade or pilocytic astrocytoma. Thirteen of the patients were 2 years of age or younger at diagnosis. Five individuals died: three of tumor progression, one of acute shunt malfunction, and one of intercurrent infection. The remaining 28 were alive at last follow up, a mean of 10.9 years from diagnosis. Twenty-three surviving patients have functional vision in at least one eye, 12 require no endocrine replacement, and 16 are in or have completed schooling with regular academic requirements. If radical surgery is to become standard care for children with low-grade astrocytomas of the hypothalamic/chiasmatic region, long-term survival and functional outcome will have to equal or surpass those of historical controls who were treated conservatively.


2012 ◽  
Vol 117 (5) ◽  
pp. 825-830 ◽  
Author(s):  
Julia J. Compton ◽  
Nadia N. Issa Laack ◽  
Laurence J. Eckel ◽  
David A. Schomas ◽  
Caterina Giannini ◽  
...  

Object Gangliogliomas comprise less than 1% of all brain tumors and occur most often in children. Therefore, there are a limited number of patients and data involving the use or role of adjuvant therapy after subtotal resections (STRs) of gangliogliomas. The objective of this study was to examine and review the Mayo Clinic experience of 88 patients with gangliogliomas, their follow-up, risk of recurrence, and the role of radiation therapy after STR or only biopsy. Methods Eighty-eight patients with gangliogliomas diagnosed between 1970 and 2007 were reviewed. Data on clinical outcomes and therapy received were analyzed. The Kaplan-Meier method was used to estimate progression-free survival (PFS) and overall survival. Results The median age at diagnosis was 19 years. The median potential follow-up as of June 2008 was 142 months (range 9–416 months). Fifteen-year overall survival was 94%, median PFS was 5.6 years, with a 10-year PFS rate of 37%. Progression-free survival was dramatically affected by extent of initial resection (p < 0.0001). Conclusions This single-institution retrospective series of patients with gangliogliomas is unique given its large cohort size with a long follow-up duration, and confirms the excellent long-term survival rate in this group. The study also shows the importance of resection extent on likelihood of recurrence. Patients with gangliogliomas who undergo STR or biopsy alone have poor PFS. Radiation therapy may delay time to progression in patients with unresectable disease.


2021 ◽  
Vol 24 (8) ◽  
pp. 615-621
Author(s):  
Mustafa Gok ◽  
Ugur Topal ◽  
Muhammet Akyüz ◽  
Abdullah Bahadır Öz ◽  
Erdogan Sozuer ◽  
...  

Background: Appendix tumors are rare tumors found in the gastrointestinal tract, observed at a rate of about 0.2%–0.3%. Our aim in this study was to present the clinicopathological classification, treatment and long-term prognosis of patients with low grade appendiceal mucinous neoplasm (LAMN). Methods: Patients who underwent surgery in the Erciyes University Department of (Kayseri, Turkey), Department of General Surgery between December 2010 and December 2018, and who had LAMN as a result of pathology were included in our study. Demographic data, clinical and pathological features of the disease, their treatment and follow-up results after treatment were reviewed retrospectively. Results: We included 24 patients in the study. Of these patients, 10 (41.6%) were male. The mean age distribution was 56.4 ± 20.3 (21–91) years. Appendectomy was performed in 14 patients, and additional organ resections were performed in 8 patients. The most common symptom at the time of presentation was abdominal pain (79.1%; 95% CI, 58.3–91.7). The most common preliminary diagnosis in the preoperative period was acute appendicitis (50%; 95% CI, 29.2–70.8). Mean postoperative hospitalization time was 7.4 ± 7.96 (2–31) days. On pathological examination, appendectomy resection margins were positive in two patients. The mean (median) postoperative follow-up was 31.25 ± 23.9 (27) (1–90) months. One-year survival was 91.6%, and 5-year survival was 83.3%. Recurrence was detected in three patients during the follow-up period. Conclusion: If appendix mucinous neoplasia (AMN) is suspected in patients undergoing surgery with an initial diagnosis of acute or plastron appendicitis, care should be taken to remove the lesion without perforation. Pseudomyxoma peritonei, which may develop as a result of perforation, is associated with recurrence and decreased survival.


2019 ◽  
Vol 23 (4) ◽  
pp. 512-516
Author(s):  
Tryggve Lundar ◽  
Bernt Johan Due-Tønnessen ◽  
Radek Frič ◽  
Bård Krossnes ◽  
Petter Brandal ◽  
...  

OBJECTIVEThe authors conducted a study to delineate the long-term results of the surgical treatment of pediatric pleomorphic xanthoastrocytomas (PXAs).METHODSAll consecutive children and adolescents (0–20 years) who underwent primary tumor resection for a PXA during the years 1972–2015 were included in this retrospective study on surgical morbidity, mortality rate, academic achievement, and/or work participation. Gross motor function and activities of daily living were scored according to the Barthel Index.RESULTSOf the 12 patients, 8 patients were in the 1st decade of life and 4 in the 2nd. The male/female ratio was 6:6. No patient was lost to follow-up. One patient presented with severe progressive tumor disease and died within 3 months after repeated resection. Another child died 3 days following a second surgical procedure involving gross-total resection (GTR) 8 years after the initial operation. The other 10 patients were alive at the latest follow-up when they reached the median age of 34 years (range 11–60 years). The median follow-up duration was 22 years (range 2–41 years). Barthel Index score was 100 in all 10 survivors. A total 18 tumor resections were performed. Five patients underwent a second tumor resection after MRI/CT confirmed recurrent tumor disease, from 6 months up to 17 years after the initial operation. Only one of our patients received adjuvant therapy: a 19-year-old male who underwent resection (GTR) for a right-sided temporal tumor in 1976. This particular tumor was originally classified as astrocytoma WHO grade IV, and postoperative radiotherapy (54 Gy) was given. The histology was reclassified to that of a PXA. Seven of 8 children whose primary tumor resection was performed more than 20 years ago are alive as of this writing—i.e., 88% observed 20-year survival. These are long-term survivors with good clinical function and all are in full- or part-time work.CONCLUSIONSPediatric patients with PXA can be treated with resection alone with rewarding results. Recurrences are not uncommon, but repeated surgery is well tolerated and should be considered in low-grade cases before adjuvant therapy is implemented. Follow-up including repeated MRI is important during the first postoperative years, since individual patients may have a more aggressive tumor course.


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 8123-8123
Author(s):  
C. Tarella ◽  
M. Zanni ◽  
A. Rambaldi ◽  
F. Benedetti ◽  
R. Passera ◽  
...  

8123 Background: The high-dose sequential (HDS) chemotherapy approach, including early dose-intensification and autograft with peripheral blood progenitor cells (PBPC), was introduced several years ago (Gianni & Bonadonna, 1989); subsequently, it has been broadly used in the management of both non-Hodgkin s (NHL) and Hodgkin s Lymphoma (HL). The outcome of a large series of lymphoma patients treated with the HDS approach at 10 GITIL Centers is reported. Methods: Data have been collected on 1,266 patients, who received either the original or slightly modified HDS regimens. There were 213 HL and 1,053 NHL (630 intermediate/high-grade, 423 low-grade); median age was 46 yrs. Overall, 671 (53%) patients had refractory/relapsed disease, 595 (47%) were at diagnosis. Most patients were autografted with PBPC; 158 (12%) patients did not undergo autografting due to toxicity, disease progression or poor harvests. Results: Overall, 1,013 (80%) patients reached Complete Remission (CR) following HDS. As to December 2006, 93 (7%) patients died for early/late toxicities, 328 (26%) died for lymphoma, 844 are known to be alive. At a lead follow-up of 18 years, and a median follow-up of 5 yrs, the 5-yr Overall Survival (OS) projection is 64% (S.E.: 2%). The long-term survival was quite favorable in patients achieving a Complete Remission (CR), with a 5-yr OS projection of 76%. The prolonged OS in patients achieving CR was consistent in all lymphoma subtypes, i.e. both low and high-grade NHL (5-yr OS: 77% in both), and HL (5-yr OS: 72%). Patients at diagnosis had a significantly better outcome compared to patients treated for relapsed/refractory disease, again CR achievement was associated with prolonged survival in both subgroups (82% and 69%, respectively, at 5 yrs.). On multivariate Cox survival analysis, CR achievement was the most powerful predictor of long-term survival (HR 0.13, c.i.: 0.10–0.17). Lastly, achieving substantial tumor reduction before autografting had a major influence on the clinical outcome. Conclusions: 1. the HDS program is feasible in a multicenter setting; 2. the long-term outcome is well influenced by the CR status after HDS; 3. the influence of CR achievement on the long-term survival holds true in all lymphoma subtypes, including indolent lymphomas; 4. an adequate pre-autograft tumor debulking may contribute to a favorable long-term outcome. [Table: see text]


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 9533-9533 ◽  
Author(s):  
Michael B. Atkins ◽  
John M. Kirkwood ◽  
Jedd D. Wolchok ◽  
Margaret K. Callahan ◽  
Harriet M. Kluger ◽  
...  

9533 Background: We previously reported a 3-year overall survival (OS) rate of 63% with NIVO+IPI concurrent therapy in the initial phase I dose-escalation study for the combination, conducted in patients (pts) with advanced melanoma. Here, we report OS after 5 years of overall study follow-up and assess survival rates after stopping treatment. Methods: Adults with previously treated or untreated unresectable stage III or IV melanoma, and ECOG performance status of 0 or 1, received NIVO + IPI Q3W × 4 as mg/kg in one of the following cohorts: (1) NIVO 0.3 + IPI 3; (2) NIVO 1 + IPI 3; (2a) NIVO 3 + IPI 1; (3) NIVO 3 + IPI 3; (8) NIVO 1 + IPI 3. Cohorts 1-3 received maintenance with NIVO Q3W × 4, then NIVO + IPI Q12W × 8 at assigned doses; cohort 8 received NIVO Q2W for up to 96 weeks. Patients were followed for the primary endpoint of safety and the secondary endpoints of response and progression-free survival for up to 2.5 years, then for the survival exploratory endpoint for up to an additional 3 years, for a maximum study participation of 5.5 years. Results: At a median follow-up of 43.1 months (range 0.9-76.7) in all cohorts (N = 94), the 4- and 4.5-year OS rates were both 57% (95% CI: 47, 67). The 4-year OS rates for pts with normal (n = 58) versus elevated LDH (n = 36) were 62% (48, 74) versus 49% (32, 65); for pts with wild-type (n = 66) and mutant (n = 24) BRAF tumors, 4-year OS rates were 54% (41, 65) and 61% (38, 77), respectively. Following the last dose of study drug (for any reason), overall post-treatment 1-, 2-, and 3-year OS rates were 74% (64, 82), 65% (55, 74), and 56% (46, 66), respectively; in pts who discontinued due to study drug toxicity (n = 32), post-treatment 1-, 2-, and 3-year OS rates were 84% (66, 93), 75% (55, 86), and 65% (45, 79), respectively, and in pts who discontinued for disease progression (n = 30), these were 52% (33, 68), 34% (18, 51), and 24% (11, 41), respectively. Conclusions: This updated analysis from study CA209-004 showed favorable survival outcomes with NIVO+IPI, regardless of BRAF or LDH status, and provided evidence of long-term survival following discontinuation of treatment in pts with advanced melanoma. Clinical trial information: NCT01024231.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 4465-4465 ◽  
Author(s):  
Jimena Cannata-Ortiz ◽  
Concepción Nicolás ◽  
Ana García-Noblejas ◽  
Javier Lopez ◽  
Pilar Sabin ◽  
...  

Abstract Introduction: Indolent B cell non-Hodgkin lymphomas are entities without curative treatment nowadays. However, survival has significantly improved since the incorporation of immunomodulatory agents and now immunochemotherapy has become the gold standard. Most treatment strategies use progression free survival (PFS) as a surrogate marker for overall survival (OS), although updated long term results are frequently lacking. Since 1990 our group introduced IFNα-2b to Bagley’s CVP induction regimen, for naïve indolent NHL (LNH-pro study). Herein we report our long term results. Aim: To evaluate long term outcome and late toxicities of patients who received immunochemotherapy with IFN α-2b plus CVP. Patients and Methods: From February 1990 to November 2001, patients from 7 Spanish institutions were included. Induction therapy consisted of Cyclophosphamide (400 mgs/m2 po) and Prednisone (100 mg/m2 po) daily for 5 days, Vincristine (1.4mg/m2 iv) on day 1, and subcutaneous IFN α-2b (3 MU/m2, three times a week, for a total of 36 doses). Patients received the number of cycles necessary to achieve maximum response. Updated clinical data were retrieved from participating centres up to March 2012. Results. A hundred and seventy patients with low-grade NHL were analyzed. Included entities were: 65% grade 1-2 follicular lymphoma (FL), 21% lymphocytic lymphoma and 14% marginal zone lymphoma. Median age was 56 yo (range 22-78 yo), elevated LDH and β2-microglobuline were 13.6% and 26% respectively, 57.6% had bone marrow involvement and 7.6% bulky disease (>7cm). According to FLIPI, 33% were high risk, 40% intermediate and 27% low risk FL. Median number of cycles was 6, and overall response rate achieved was 90%, with 68% complete remissions. Median follow up of surviving patients was 12.5 years (range 3-21 ys), with only 14.7% of patients lost to follow-up. Median PFS for all patients was 12.5 years (95% CI 10.5 – 14.5 years) and not reached for FL patients (20-year PFS of 63%; 95%CI: 54-72%). Median OS has not been reached, with a 20-year OS of 59.7% (CI 95%, 50.5-69%) for all low-grade NHL patients and 62% (IC 95%, 50-74%) for FL patients. Long-term toxicity is detailed in table 1. Incidence of secondary malignancies is 13.5%. At time of analysis, 57 out of 170 patients have died (33.5%), mainly due to lymphoma (58% of patients) and other non-lymphoma events (42%). Table Secondary malignancies 23 cases (13.5%) - MDS / AML 3 cases - Solid tumors 18 cases - Dermatologic neoplasia 2 cases Causes of death Number of patients (%) Induction toxicity events 4 (7%) Lymphoma progression / relapse 29 (51%) Secondary malignancies 9 (16%) Other non-lymphoma events 15 (26%) - Miocardiopathy 4 - Chronic Pulmonary disease 3 - Hepatic failure 2 - Brain traumatic injury 1 - Unknown cause 5 Figure 1 Figure 1. Conclusions: Our results confirm that immunochemotherapy with IFN α-2b plus CVP regimen induces a median PFS of 12.5 years and a 20-year OS of 59.7% (median not reached). With a median follow-up of 12.5 years, 58 % died due to lymphoma, 16% from secondary malignancies and 26% for non-lymphoma events. These results highlight the importance of performing long term follow-up in order to assess the real survival benefit of any treatment. Disclosures No relevant conflicts of interest to declare.


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