scholarly journals Effective salvage therapy for lymphoma with cisplatin in combination with high-dose Ara-C and dexamethasone (DHAP)

Blood ◽  
1988 ◽  
Vol 71 (1) ◽  
pp. 117-122 ◽  
Author(s):  
WS Velasquez ◽  
F Cabanillas ◽  
P Salvador ◽  
P McLaughlin ◽  
M Fridrik ◽  
...  

Abstract Ninety patients with progressive recurrent lymphoma were treated with a combination of cisplatin 100 mg/m2 intravenously (IV) by continuous infusion over 24 hours, followed by cytosine arabinoside in two pulses each at a dose of 2 g/m2 given 12 hours apart. Dexamethasone, 40 mg orally or IV, was given on days 1 through 4. Vigorous hydration was reinforced by routine use of mannitol. Treatments were repeated at 3- to 4-week intervals for six to ten courses. Most patients had not achieved complete remission (CR) with prior therapies, which included Adriamycin (all patients) and methotrexate and VP-16 (58 patients). Median patient age was 55 years. Intermediate-grade lymphoma was the most frequent pathologic diagnosis. Seven patients died within two weeks of therapy; of the remaining 83 patients, 28 (34%) or 31% if all patients are considered, achieved CR, and 22 (26.5%) achieved partial remission (PR). Response was evident after the first two cycles of chemotherapy and appeared to be independent of the histopathologic type of lymphoma. To date, only eight of the complete responders have relapsed at a median follow-up of 11 months. The overall 2-year survival in 25%. Further analysis showed that patients with low tumor burden and normal lactic acid dehydrogenase (LDH) had a high CR response rate (67%) and a survival rate of 61% at 2 years. In contrast, patients with both high tumor burden and elevated serum LDH levels had a negligible CR rate, and only 5% are surviving at 1 year. Patients with either high tumor burden with normal LDH or low tumor burden with elevated LDH had an intermediate survival. Myelosuppression-related infection was the most frequent serious complication of this regimen (31%) and the cause of death of ten patients. Acute lysis syndrome was also observed in five patients with high tumor burden and was the cause of death in three of these patients. DHAP has proven to be an effective non-crossresistant regimen for patients with relapsing or refractory lymphoma, particularly for patients who have favorable prognostic characteristics.

Blood ◽  
1988 ◽  
Vol 71 (1) ◽  
pp. 117-122 ◽  
Author(s):  
WS Velasquez ◽  
F Cabanillas ◽  
P Salvador ◽  
P McLaughlin ◽  
M Fridrik ◽  
...  

Ninety patients with progressive recurrent lymphoma were treated with a combination of cisplatin 100 mg/m2 intravenously (IV) by continuous infusion over 24 hours, followed by cytosine arabinoside in two pulses each at a dose of 2 g/m2 given 12 hours apart. Dexamethasone, 40 mg orally or IV, was given on days 1 through 4. Vigorous hydration was reinforced by routine use of mannitol. Treatments were repeated at 3- to 4-week intervals for six to ten courses. Most patients had not achieved complete remission (CR) with prior therapies, which included Adriamycin (all patients) and methotrexate and VP-16 (58 patients). Median patient age was 55 years. Intermediate-grade lymphoma was the most frequent pathologic diagnosis. Seven patients died within two weeks of therapy; of the remaining 83 patients, 28 (34%) or 31% if all patients are considered, achieved CR, and 22 (26.5%) achieved partial remission (PR). Response was evident after the first two cycles of chemotherapy and appeared to be independent of the histopathologic type of lymphoma. To date, only eight of the complete responders have relapsed at a median follow-up of 11 months. The overall 2-year survival in 25%. Further analysis showed that patients with low tumor burden and normal lactic acid dehydrogenase (LDH) had a high CR response rate (67%) and a survival rate of 61% at 2 years. In contrast, patients with both high tumor burden and elevated serum LDH levels had a negligible CR rate, and only 5% are surviving at 1 year. Patients with either high tumor burden with normal LDH or low tumor burden with elevated LDH had an intermediate survival. Myelosuppression-related infection was the most frequent serious complication of this regimen (31%) and the cause of death of ten patients. Acute lysis syndrome was also observed in five patients with high tumor burden and was the cause of death in three of these patients. DHAP has proven to be an effective non-crossresistant regimen for patients with relapsing or refractory lymphoma, particularly for patients who have favorable prognostic characteristics.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 796-796 ◽  
Author(s):  
Sundar Jagannath ◽  
Brian G.M. Durie ◽  
Jeffrey Lee Wolf ◽  
Elber S. Camacho ◽  
David Irwin ◽  
...  

Abstract Introduction: Novel therapeutic agents, such as bortezomib (VELCADE®; btz), thalidomide, and lenalidomide, are being used in combination with dexamethasone (dex) as frontline therapies in MM. Phase 2 and 3 trials with limited follow-up have reported a high response rate and feasibility of high-dose therapy and stem cell transplantation (HDT-SCT). Here we present longer follow-up on our phase 2 trial of btz±dex as frontline therapy. Methods: Patients (pts) with measurable disease and KPS ≥50% received btz 1.3mg/m2 on days 1, 4, 8 and 11 of a 3-week cycle for up to 6 cycles. Oral dex 40mg was added on the day of and day after btz for pts achieving < partial response (PR) after 2 cycles or < complete response (CR) after 4 cycles. Responses were assessed using European Group for Blood and Marrow Transplantation criteria, with the addition of near CR (nCR; CR but positive immunofixation). Results: 48 pts were accrued and were evaluable for response; a further 2 registered on the trial declined to proceed. Median age was 60 years, 46% were male, 64% had IgG and 21% IgA, and 50% were Durie-Salmon stage III. At the end of btz±dex treatment, overall response rate (ORR; CR+nCR+PR) was 90% with 19% CR/nCR; an additional 8% achieved a minimal response (MR). Response to btz alone was rapid; response rate by end of cycle 2 was 50%, including 10% CR/nCR. Dex was added for 36 (75%) pts: 17 at cycle 3, 18 at cycle 5, and 1 at cycle 6. Addition of dex improved best responses to btz in 23 (64%) pts, with 12 improving from stable disease to MR or PR, 9 from MR to PR, 1 from PR to nCR, and 1 from nCR to CR. Median time to best response was 1.9 months. For all 48 pts, with a median follow-up of 24 months, median time to alternative therapy (TTAT) was 7 months (range: 2–25; this includes pts who went on to HDT-SCT), and median overall survival (OS) has not been reached; 1-year survival rate was 90%. For pts not proceeding to HDT-SCT, median TTAT was 22 months, median OS has not been reached; 1-year survival rate was 80%. 23/48 pts proceeded to HDT-SCT. Median CD34+ harvest was 12.6 x 106 cells/kg (range: 5.1–40.4 x 106) from a median of 2 collection days (range: 1–8). All pts had complete hematologic recovery; median time to neutrophil (ANC >1000/mm3) and platelet (>100,000/mm3) engraftment was 11 days (range: 8–13) and 17 days (range: 10–98), respectively. In the 23 HDT-SCT pts, median TTAT and OS have not been reached; post-transplant 1-year survival rate was 90%. The most common grade ≥2 adverse events for btz±dex were sensory neuropathy/neuropathic pain (37%), fatigue (20%), constipation (16%), nausea (12%), and neutropenia (12%). Two pts developed grade 4 events (1 neutropenia, 1 thrombocytopenia). Conclusion: Btz±dex is an effective frontline therapy for MM, with an ORR of 90%, including 19% CR/nCR, and OS rate of 80% at 1 year. The treatment is well tolerated and toxicities were manageable and reversible. Addition of dex to btz provides improved responses. TTAT for patients not undergoing HDT-SCT was 22 months. The regimen does not prejudice subsequent HDT-SCT; stem cell harvest and engraftment were successful in all pts proceeding to transplant. Consolidation with HDT-SCT further increases the response rate and durability of response. Btz+dex is being compared to VAD as induction therapy prior to HDT-SCT in a phase 3 study.


1991 ◽  
Vol 9 (1) ◽  
pp. 123-132 ◽  
Author(s):  
C Patte ◽  
T Philip ◽  
C Rodary ◽  
J M Zucker ◽  
H Behrendt ◽  
...  

From April 1984 to December 1987, the French Pediatric Oncology Society (SFOP) organized a randomized trial for advanced-stage B-cell lymphoma without CNS involvement to study the possibility of reducing the length of treatment to 4 months. After receiving the same three intensive six-drug induction courses based on high-dose fractionated cyclophosphamide, high-dose methotrexate (HD MTX), and cytarabine in continuous infusion, patients were evaluated for remission. Those who achieved complete remission (CR) were randomized between a long arm (five additional courses with two additional drugs; 16 weeks of treatment) and a short arm (two additional courses; 5 weeks). For patients in partial remission (PR), intensification of treatment was indicated. Two hundred sixteen patients were registered: 15 stage II nasopharyngeal and extensive facial tumors, 167 stage III, and 34 stage IV, 20 of the latter having more than 25% blast cells in bone marrow. The primary sites of involvement were abdomen in 172, head and neck in 30, thorax in two, and other sites in 12. One hundred sixty-seven patients are alive in first CR with a minimum follow-up of 18 months; four are lost to follow-up. Eight patients died from initial treatment failure, 14 died from toxicity or deaths unrelated to tumor or treatment, and 27 relapsed. The event-free survival (EFS), with a median follow-up of 38 months, is 78% (SE 3) for all the patients, 73% (SE 11) for the stage II patients, 80% (SE 3) for the stage III patients, and 68% (SE 8) for the stage IV and acute lymphoblastic leukemia (ALL) patients. One hundred sixty-six patients were randomized: 82 in the short arm and 84 in the long arm. EFS is, respectively, 89% and 87%. Statistical analysis confirms equivalence of both treatment arms with regard to EFS. Moreover, morbidity was lower in the short arm. This study confirms the high survival rate obtained in the previous LMB 0281 study without radiotherapy or debulking surgery and demonstrates the effectiveness of short treatment.


Blood ◽  
2021 ◽  
Author(s):  
Emmanuel Bachy ◽  
Roch Houot ◽  
Pierre Feugier ◽  
Krimo Bouabdallah ◽  
Reda Bouabdallah ◽  
...  

Obinutuzumab and lenalidomide (GALEN) is an active immunomodulatory combination with a manageable safety profile in multiple types of lymphoma. We report efficacy and safety results for the phase 2 GALEN study in previously-untreated patients with advanced follicular lymphoma (FL). Eligible patients aged ≥ 18 years had ECOG PS ≤ 2, high-tumor burden, grade 1-3a FL. Induction treatment was obinutuzumab (1000 mg IV, days 8/15/22, cycle 1; day 1, cycles 2-6) plus lenalidomide (20 mg/day, days 1-21, cycle 1; days 2-22, cycles 2-6) for 6 cycles. Maintenance included obinutuzumab (1000 mg every 2 cycles) plus lenalidomide (10 mg, days 2-22) for ≤ 12 cycles (year 1) followed by obinutuzumab (1000 mg every 56 days) for 6 cycles (year 2). The primary endpoint was complete response rate (CRR) after induction per IWG 1999 criteria. From October 2015 to February 2017, 100 patients were enrolled. CRR after induction was 47% and overall response rate (ORR) 92%. Post-hoc analyses per 2014 Lugano classification including patients with missing bone marrow assessments identified an additional 13 patients fulfilling CRR criteria, resulting in a complete metabolic response of 80% and ORR of 94%. At a median follow-up of 3.7 years, 3-year progression-free and overall survival were 82% and 94%, respectively. The most common adverse event was neutropenia (48% any-grade; 47% grade ≥ 3) but only 2% of patients presented febrile neutropenia; others were mainly grade ≤ 2. No other specific grade ≥3 toxicity occurred at a frequency higher than 3%. Overall, these results demonstrated promising clinical efficacy for the chemo-free backbone obinutuzumab and lenalidomide in previously untreated, high tumor burden FL patients. Except for neutropenia, the safety profile of the combination is remarkable. The study was registered with ClinicalTrials.gov, number NCT01582776


1991 ◽  
Vol 9 (10) ◽  
pp. 1821-1830 ◽  
Author(s):  
P A Demchak ◽  
J W Mier ◽  
N J Robert ◽  
K O'Brien ◽  
J A Gould ◽  
...  

In this pilot study of metastatic melanoma, interleukin-2 (IL-2) and cisplatin (CDDP) chemotherapy were combined using an alternating schedule designed to explore potential synergism between these modalities. Bolus IL-2 was given at a dose of 600,000 IU/kg intravenously (IV) every 8 hours, days 1 to 5 and 15 to 19, followed by high-dose CDDP administered by two different regimens: (A) 135 to 150 mg/m2 IV bolus over 30 minutes with the chemoprotectant WR-2721 910 mg/m2 or (B) 50 mg/m2 IV over 2 hours every day for 3 days. The trial design allowed an assessment of response to each phase of therapy. Among 27 assessable patients, there were 10 (37%) overall responses, including three (11%) complete responses (CRs) with durations of 9, 16, and 30+ months. Tumor regression was noted in seven patients (partial response [PR], four; minor response [MR], three; response rate [RR], four of 27 [15%]) after IL-2 administration and in 14 patients (PR, 12; MR, two; RR, 12 of 27 [44%]) after CDDP treatment, demonstrating noncrossresistance between the components of the regimen. Major PRs (greater than 90% reduction of tumor burden) or CRs were only seen in patients responding to IL-2. Toxicity during IL-2 therapy was typical for high-dose IL-2 protocols and was reversible. Among the first 20 patients treated with CDDP regimen A, there were eight episodes of grade IV nephrotoxicity (creatinine level greater than 5.0 mg/dL), including three of six patients treated with an initial CDDP dose of 135 mg/m2. This side effect was more frequent among patients with liver metastasis (P less than .05, Fisher's exact test). No significant nephrotoxicity was noted in seven patients treated on regimen B. Although ototoxicity was frequent, minimal bone marrow and neurologic toxicity was noted. There were no treatment-related deaths. This combination showed at least additive activity against melanoma, and the more protracted CDDP schedule was well tolerated. This regimen may serve as a model for future combined immunotherapy and chemotherapy trials in metastatic melanoma.


1985 ◽  
Vol 3 (2) ◽  
pp. 176-183 ◽  
Author(s):  
H M Dhingra ◽  
M Valdivieso ◽  
D T Carr ◽  
D F Chiuten ◽  
P Farha ◽  
...  

One hundred sixty-seven evaluable patients with non-small-cell lung cancer were randomized to receive high-dose cisplatin and vindesine (PVD), or cisplatin and VP-16-213 (etoposide epipodophyllotoxin) (PVP), or cisplatin with VP-16-213 and vindesine (PVPVD). The patient distribution and characteristics were similar in all the treatment arms. The response rate differences (35% in PVD arm, 30% in PVP arm, and 22% in PVPVD arm) were not statistically significant (P = .33). Response durations were 43 weeks in the PVD arm, 20 weeks in the PVP arm, and 27 weeks in the PVPVD arm. Median survival was 29 weeks in the PVD and PVP arms and 28 weeks in the PVPVD arm. Median survival time of responding patients was 76 weeks in the PVD arm and 65 weeks in the PVP arm; 78% of patients were alive at 22+ to 87+ weeks follow-up in the PVPVD arm. Myelosuppression was similar in all three treatment arms. Significantly more azotemia occurred in the PVD arm than in the PVP and PVPVD arms (P = .002), and significantly more neuropathy in the PVD and PVPVD arms than in the PVP arm (P = .003 and .005). All the treatment arms have similar antitumor activity in non-small-cell lung cancer, but the PVP combination is slightly less toxic than the PVD and PVPVD treatment arms.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 1163-1163
Author(s):  
Sam O. Wanko ◽  
Jon P. Gocherman ◽  
Joseph O. Moore ◽  
Carlos Decastro ◽  
Robert Prosnitz ◽  
...  

Abstract BACKGROUND: Mantle cell lymphoma (MCL) typically has a poor outcome with overall survival of only 3–4 years. Higher treatment response and event-free survival has been demonstrated with aggressive high dose chemotherapy followed by autologous hematopoietic stem cell support, though long term cure rates remain unclear(Dreger P. Hematol J. 2000;vol.2). Modest response rates have also been reported with the monoclonal antibody (MoAb) rituximab and ALEMTUZUMAB (Foran, JM. JCO 2000; vol. 2. Faderl S. Blood 2003; vol. 9). We therefore combined dose-dense therapy with MoAbs to explore response rate and event free survival (EFS) in mantle cell lymphoma. The strength of this trial design is ability to follow all patients from induction chemotherapy through high dose therapy and transplant in order to gauge clinical outcome on all enrolled patients, not just the subpopulation who is able to proceed to high dose therapy. PATIENTS AND METHODS: Induction therapy consisted of 1 cycle of high dose cytarabine (3gm/m2 IV over 1 hour Q12H for 8 doses), mitoxantrone (10mg/m2 daily for 3 days), and ALEMTUZUMAB 30mg IV 3 times a week for 6 weeks with growth factor support. All responding patients were mobilized with cyclophosphamide 4gm/m2 and G-CSF 10 mcg/kg/day and/or bone marrow harvest. The transplant preparative regimen was carmustine 15mg/kg over 2 hours day -6, etoposide 60mg/kg over 4 hours day -4, and cyclophosphamide 100mg/kg over 2 hours day -2 followed by autologous reinfusion on day zero. Consolidation was given with rituximab 375mg/m2 weekly for 4 doses at 6 weeks and 6 months post transplant. RESULT: 9 patients with advanced disease (7 stage IV, 1 stage III, 1 stage IIA) and median age of 60 (48 – 65 years) have been accrued and treated since February 2003. Four were newly diagnosed and 5 had relapsed/refractory disease. Seventy eight percent (7/9) had complete response and 22% (2/9) had partial response (PR) following induction therapy. One patient had severe infection after induction and was unable to proceed to transplant. Another had constitutional decline preventing further therapy and each died within 4 months of withdrawal from the protocol. Both had relapse/refractory disease at accrual. The remaining 7 patients proceeded to the transplant phase. With a median follow-up of 7 months (range 3–16 months), all 7 patients remain in CR for 1 –16 months. Significant induction therapy toxicity included neutropenia in all 9 patients with average duration of 10.7 days, non-disseminated CMV reactivation in 44% of patients, one overwhelming fungal infection, and one patient with delay in engraftment. Figure Figure CONCLUSION: Our preliminary data show a high induction and transplant phase completion rate, manageable toxicity, and excellent overall response rate in this group of elderly patients with advanced disease. Larger numbers of patients and longer follow-up is needed to confirm these promising results.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 1882-1882
Author(s):  
Stephane Vignot ◽  
Nicolas Mounier ◽  
Guillaume Sergent ◽  
Pauline Brice ◽  
Jean-Pierre Marolleau ◽  
...  

Abstract Low grade lymphoma patients (pts) have an indolent evolution with median survival ranging between 8–10 years. During disease’s course, high dose therapy (HDT) and autologous stem-cell transplantation (ASCT) can be considered as an alternative to sequential chemotherapies. However, efficacy of this strategy remains controversial. The purpose of our study is to evaluate ASCT efficacy by comparing retrospectively for each pts disease free survival (DFS) after ASCT with DFS observed with pts’ last chemotherapy regimen (LCR) just before intensification. Between apr 1988 and feb 2002, 109 low grade lymphoma pts were treated with HDT and ASCT in our department, 61 were male, the median age was 49 yrs [range 28–65]. Histological subtypes were mostly follicular small cell (86 %). At time of diagnosis, LDH were normal for 85 pts; 60 pts had high tumor burden. IPI was 0 for 16 %, 1 for 70 % and 2 for 14 %. Prior to ASCT, pts had experienced a median of 2 progressions (range 1 to 5). At time of graft, 102 pts present complete or partial response and 7 pts present stable disease. Two principal intensification chemo regimens were used before ASCT: VP16/cyclophosphamide in 84 pts and BEAM in 12. TBI was associated for 86 pts. At June 2002, the median follow up was 6.4 yrs from diagnosis and 4.5 yrs from ASCT. 3 years after ASCT, survival rate was 72 % and DFS rate was 50 %. Median DFS decreased with nb of progression (p=0.02): Median DFS according to nb of progression Nb of progression 1 2 3 > 3 Nb pts (%) 17 (16) 57 (52) 28 (26) 7 (6) Median DFS in yrs 6.4 5.1 1.8 1.0 Considering pt with more than 1 progression (n=92) as his own control, DFS was longer after ASCT than after LCR for 61 % of pts. Median DFS was 2.5 yrs after ASCT and 2.0 yrs after LCR. At 3 yrs, DFS rate was 48 % after ASCT and 37 % after LCR (p<0,001): Figure Figure This study demonstrates that HDT and ASCT significantly increase DFS in comparison with the LCR for low grade lymphoma patients. Such methodology could be useful to evaluate new strategy incorporating monoclonal antibody.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 1795-1795
Author(s):  
Jerzy Holowiecki ◽  
Sebastian Grosicki ◽  
Tadeusz Robak ◽  
Slawomira Krzemien ◽  
Sebastian Giebel ◽  
...  

Abstract The goal of the study was to evaluate long-term outcome of acute myeloid leukemia (AML) patients treated within the PALG 1999 DAC vs, DA Study. Between 1999–2002, 445 patients, aged 18–60 years, were randomized to the induction DAC-7: daunorubicin 60 mg/m2/d iv 1–3; cytarabine 200 mg/m2/d ci 1–7; cladribine 5 mg/m2 2h inf. iv d 1–5 or standard DA-7 regimen (the same regimen without cladribine). Patients achieving CR received two courses of subsequent intensive consolidation: 1) HAM (HD AraC, mitoxantrone) 2) HD AraC with or without cladribine in the DAC-7 or DA-7 arm, respectively. In case of PR after the first induction course the same regimen was repeated, NR patients received CLAG (2-CDA, HD-AraC, G-CSF), regardless the randomization arm. Post-consolidation therapy was in both arms comparable. As previously reported, a single course of DAC-7 induction resulted in 17% higher CR rate compared to the DA-7 treatment. The difference was particularly pronounced in a population of patients >40 years and for those with initial WBC >100x109/L. In the latter subgroup also the overall CR rate (achieved after >=1 induction course) was higher in the DAC-7 arm (71% vs. 43%). [Leukemia. 2004 May;18(5):989–97] In the present report we analyzed long-term outcome (median follow-up 3.2 years) in the whole study group and in pre-defined subgroups taking into account initial tumor burden, age, cytogenetics, FAB subtype, and preceding myelodysplasia. At five years the overall survival (OS) rate equaled 31% for DAC-7 and 25% for DA-7 arm (p=0.42) and leukemia free survivall (LFS) 32% vs. 29% (p=0.38), respectively. The subgroup analysis revealed higher probability of the OS in patients with initial WBC ≥100 G/l assigned to DAC-7 compared to DA-7 arm (39% vs. 11%, p=0.02). The LFS rate and the probability of relapse equaled 50% and 32% (p=NS) and 36% and 68% (p=0.0497), respectively. In patients aged >40 years, the therapy containing cladribine was associated with improved LFS (30% for DAC-7 vs. 20% for DA-7, p=0.01), and a tendency to improved OS (28% vs. 18%, p=0.09). In this subgroup DAC-7 therapy resulted in reduced relapse incidence (60% vs. 69%, p=0.04).We conclude that addition of cladribine to induction/consolidation therapy of AML may improve long-term outcome in higher age ranges patients and in those with high tumor burden. The improvement results mainly from reduced risk of relapse, and, in patients with high initial WBC, from higher CR rate.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 3158-3158
Author(s):  
Roberto Sorasio ◽  
Luisa Giaccone ◽  
Francesca Patriarca ◽  
Vittorio Montefusco ◽  
Stefano Guidi ◽  
...  

Abstract Allografting can induce long-term molecular remissions and possibly cure in myeloma patients. The recent development of non-myeloablative conditionings has reduced the transplant-related mortality (TRM) typically associated with myeloablation and extended the eligible age for transplantation. Moreover, high response rates are reported especially when allografting is preceded by cytoreductive high dose chemotherapy. We investigated the feasibility of unrelated donor non-myeloablative transplantation as either part of the initial treatment plan or as salvage treatment in heavily pre-treated patients. Twenty-two patients underwent non-myeloablative allografting, 10 as part of their initial treatment and 12 at disease relapse. Donors were matched for HLA-A, B, C, DRB1 and DQB1 by high-resolution typing. Only one single class I allele disparity was allowed. Conditioning regimen consisted of fludarabine 90 mg/m2 and 2 Gy total body irradiation. GVHD prophylaxis included oral cyclosporine (CyA) and mycophenolate mofetil (MMF). CyA was administered at 6.25 mg/Kg every 12 hours from day -3; levels were targeted to the upper therapeutic range (450–500 ng/ml, Abbott TDX, Abbott Park, IL) for the first month post-transplant. In the absence of GVHD, CyA was tapered from day +100 and discontinued on day +177. MMF was administered from day 0 after PBSC infusion to day +40 at 15 mg/Kg every 8 hours, and then tapered till day +96. Twenty/22 (91%) patients readily engrafted. Two patients experienced graft failure and eventually recovered autologous hematopoiesis. After a median follow up of 11 months (3–27), TRM was 18% and 16/22 patients (73%) are alive. Deaths occurred in 10% of patients transplanted upfront and in 42% of those transplanted at relapse: 3 patients died from infections, 1 from hemolytic uremic/ thrombotic thrombocytopenic purpura syndrome, and 2 from disease progression (both were transplanted at relapse). Ten/20 engrafted patients (50%) had grade II–IV acute GVHD (10% grade III–IV), and 59% had extensive chronic GVHD. Overall response rate was 60% (including 20% CR): 78% in patients transplanted upfront (no disease progression observed) and 45% in those transplanted at relapse. In the two groups, progression-free and one year event-free survival were 100% and 44% (p<0.025), and 90% and 28% respectively (p<0.005). Unrelated donor non-myeloablative allografting is feasible with relatively low TRM and high response rate. Graft-versus-myeloma effect appears to be more efficient when patients are treated soon after diagnosis. Longer follow-up is needed to assess response duration.


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