Head-to-Head Comparison of 5-Azacitidine Versus Decitabine for the Treatment of Myelodysplastic Syndrome.

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 2843-2843
Author(s):  
Yun-Gyoo Lee ◽  
Inho Kim ◽  
Sung-Soo Yoon ◽  
Seonyang Park ◽  
June-Won Cheong ◽  
...  

Abstract Abstract 2843 Introduction The hypomethylating agents (HMAs) 5-azacitidine (AZA) and decitabine (DAC) provided significant overall response rates (40–60%) in myelodysplastic syndrome (MDS), and improved the outcome of higher risk MDS. However, phase III trials comparing AZA or DAC to conventional treatment including best supportive care have shown discrepant results. The aim of this study is to compare the efficacy and safety between AZA and DAC in patients with MDS. Methods We evaluated 203 patients in lower risk with significant cytopenia and higher risk MDS who received AZA and 97 patients who received DAC in Korea between January 2004 and December 2011. AZA 75mg/m2/day was given subcutaneously for 7 days every 4 weeks. DAC 20mg/m2/day was given intravenously over one hour for 5 days every 4 weeks. We compared overall response rate (complete responses, partial responses, marrow complete responses, and hematologic improvements), overall survival (OS) and adverse outcomes with the use of propensity-score matching in the overall cohort according to HMAs. Results Among 300 patients, propensity matching for the entire cohort created 97 matched pairs of patients. The International Prognostic Scoring System risk category was Intermediate-2/High in 40.2%. A median of 5 courses (range 1–24) were delivered in AZA and 5 courses (range 1–14) in DAC. In the overall matched cohort, there was no significant difference between AZA and DAC in overall response rate (44.2% vs. 52.1%, P=.28), OS (28 vs. 23 months; hazard ratio for AZA, 1.14; 95% confidence interval [CI], 0.75 to 1.72, P=.54) with a median follow-up duration of 29.6 months. Among the patient under 65, no significant differences were noted for OS between AZA and DAC group. Among the patient over 65, however, the patients who received DAC showed higher risk of death than those who received AZA with borderline significance (hazard ratio for AZA, 1.58; 95% CI 0.91 to 2.73, P=.10). The cumulative hazard of transformation to acute myeloid leukemia (AML) was 16.3% in AZA and 21.9% in DAC at one year, and 32.2% in AZA and 55.3% in DAC at two year. The incidence of grade 3 & 4 neutropenia was significantly higher in DAC than AZA (P=.026). Among 1151 assessable treatment courses (604 in AZA, 547 in DAC), AZA group have less likely to experience fever episodes requiring intravenous antibiotics than DAC group (8.6 vs. 15.7 episodes per 100 courses; risk ratio, 0.55; P<.001). Conclusions In a cohort of patients in lower risk with significant cytopenia and higher risk MDS, AZA and DAC showed comparable efficacy in terms of overall response rate, OS and risk of transformation to AML. However, patients receiving DAC experienced more frequent grade 3 & 4 neutropenia and fever episodes than patient receiving AZA. When both AZA and DAC are available, safety profiles as well as treatment efficacy need to be considered. Disclosures: No relevant conflicts of interest to declare.

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 5506-5506 ◽  
Author(s):  
G. Calais ◽  
Y. Pointreau ◽  
M. Alfonsi ◽  
C. Sire ◽  
C. Tuchais ◽  
...  

5506 Background: Induction chemotherapy (CT) with PF followed by RT in case of objective response is an alternative to total laryngectomy (TL) for patients with locally advanced larynx (L) and hypopharynx (H) cancer. Data have suggested that T may add to the efficacy of PF. The objective of this trial was to determine whether the addition of T to PF could increase the L preservation rate. Methods: Patients with L and H cancer for whom surgical procedure required TL were randomized to receive PF or TPF. Inclusion criteria were: adequate organ function, WHO PS 0 or 1, age from 18 to 70, signed informed consent. Treatment arms were PF = P 100 mg/m2/d1 and F: 1000 mg/m2 continuous infusion (CI) d1 to 5, TPF = T: 75 mg/m2/d1, P: 75mg/m2/d1 and F: 750mg/m2 CI d1 to 5 for 3 cycles with 21 days interval. Patients with complete or partial response and who recovered normal L mobility received RT to 70 Gy. Non responders underwent TL followed by RT. The primary endpoint was 3-year larynx preservation rate. To detect an absolute difference of 15% the sample size was 210. Results: 220 patients were randomized (108 to PF, 112 to TPF). Patients characteristics (age, sex, PS, primary site, TN) were well balanced. The TPF arm showed greater grade 3–4 alopecia (19% vs 2%) and neutropenia (57% vs 35%) while the PF arm showed greater grade 3–4 mucositis (9% vs 4%) and febrile neutropenia (6% vs 2%).Compliance to CT was better in the TPF. The specified treatment was delivered in 81.2% of patients in the TPF vs 67.4%. The overall response rate (T and N) was 82.8% in the TPF vs 60.8% (p = 0.0013). 60.6% of patients achieved a complete endoscopic response vs 46.7%. L preservation was offered for 80% of patients in the TPF vs 57.6%. A high hemoglobin level (>14 gr/l) and a compliance to treatment >80% are associated with a better response rate. With a median follow up of 35 months the 3-year actuarial L preservation rate is 73% following TPF vs 63% using the PF regimen. Conclusion: In advanced L and H cancer, TPF demonstrated significantly superior overall response rate compared to the PF regimen. The TPF is better tolerated and preliminary results suggest that L preservation could be achieved for a higher proportion of patients. No significant financial relationships to disclose.


Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 327-327 ◽  
Author(s):  
Craig Reynolds ◽  
Nicholas Di Bella ◽  
Roger M. Lyons ◽  
William J Hyman ◽  
Gary L. Lee ◽  
...  

Abstract Purine analog-based regimens have emerged as highly active regimens in the treatment of chronic lymphocytic lymphoma (CLL). Promising results have been reported with the combination of fludarabine (F), cyclophosphamide (C), and rituximab (R) (FCR) by Keating and colleagues at the University of Texas M.D. Anderson. A previous USOR trial, as well as a Mayo clinic trial, evaluated the combination of pentostatin (P), cyclophosphamide (C), and rituximab (R) (PCR); results suggested similar efficacy with less infectious complications than that seen with FCR. The current multicenter, randomized, community-based trial was conducted to compare FCR and PCR in previously untreated or minimally treated B cell CLL. The primary endpoint was infectious complications with efficacy and safety as secondary endpoints. Correlative studies of immune function were conducted by Kay and colleagues at the Mayo Clinic and will be reported separately. Patients (pts) were assigned to either PCR (P 4 mg/m2 Day 1, C 600 mg/m2 Day 1, R 375 mg/m2 Day 1) (2 1-day cycles) or FCR (F 20 mg/m2 Day 1–5, C 600 mg/m2 Day 1, R 375 mg/m2 Day 1) (28-day cycles). In both regimens the first dose of R 100 mg/m2 was given on Day 8 Cycle 1 and the remainder of the 375 mg/m2 dose was given on Day 9; in subsequent cycles the entire 375 mg/m2 dose was given on Day 1. 92 pts were randomized to each group (N=184). Groups were well balanced for sex, race, and age. Stage II/III/IV were 41%/22%30% for FCR vs 55%/17%/22% for PCR and ECOG PS 0/1/2 were 74%/22%/1% for FCR vs 62%/34%/2% for PCR; ~20% of pts in both groups had received prior chemotherapy; 80% were previously untreated. The infection rate (temperature □101 requiring antibiotics) in FCR was 30.7% vs 33.7% in PCR (p=0.67) while infective events (temperature □101°F w/o symptoms or &lt;101°F with symptoms was 36.8% in FCR vs 43.5% in PCR (p NS); 29 (33%) FCR patients were hospitalized compared to 35 (41%) of PCR patients; total number of hospitalization days was 258 with FCR and 377 with PCR (p NS). Complete remissions were achieved in 15 (17%) FCR pts and 6 (7%) PCR pts, while the overall response rate (ORR) including CR+PR+nPR was 57.5% in FCR vs 45% in PCR; SD was best response in 29% of FCR and 48% of PCR pts. The difference in CR was significant (P=0.04) between groups; however, ORR was not (P=0.13). Updated results will be presented at the meeting. The most frequent Grade 3–4 treatment related AEs (for FCR/PCR) were: neutropenia (64%/57%), leukopenia (33%/17%), thrombocytopenia (10%/4%) Grade 3–4 infections with FCR vs PCR were: febrile neutropenia (4.5%/arm), fever (2.3% vs 4.5%), infection (0% vs 3.4%), urinary tract infection (1.1% vs 0%), pneumonia (4.5% vs 0%), and sepsis (1.1%/arm). As of May 2008, 10 FCR and 17 PCR pts have died; 2 FCR deaths (pneumonia and sepsis) were infection-related. ~50% in each group completed the protocol; 28% of FCR and 27% of PCR pts discontinued due to AEs). We conclude that both PCR and FCR have significant activity in CLL and can be given safely in the community setting. Both regimens possess significant toxicity and response rates in this multi-institution, community-based randomized trial were lower than previous phase II trials of previously untreated patients. This trial did not demonstrate a lower infection rate with PCR using pentostatin at the 4 mg/m2 dose level. In early follow-up, no statistically significant differences with respect to overall response rate or survival were observed between FCR and PCR, although the CR rate was significantly higher with FCR. This research was supported, in part, from a research grant from Hospira, Inc.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 9015-9015
Author(s):  
Julien Mazieres ◽  
Claire Lafitte ◽  
Charles Ricordel ◽  
Laurent Greillier ◽  
Jean-Louis Pujol ◽  
...  

9015 Background: Human epidermal growth factor receptor 2 ( HER2) exon 20 insertions and mutations are oncogenic drivers found in 1-2% of NSCLC. However, there are no approved therapies for these patients. Many studies suggest that the use of HER2 inhibitors developed for breast cancer patients might be of interest in this setting. The aim of this trial was to prospectively evaluate the interest of a combination of two antibodies against HER2 (trastuzumab and pertuzumab) with docetaxel. Methods: IFCT-1703 R2D2 trial is a multicenter, non-randomized phase 2 study with a two-stage design, a power of 90% and an alpha risk at 5% (one-sided). HER2 mutational status was assessed locally in certified molecular genetic centers. Main other inclusion criteria were advanced NSCLC, progression after ≥ 1 platinum-based chemotherapy, asymptomatic brain metastases, left ventricular ejection fraction (LVEF) ≥ 50%, and PS 0-2. Patients were treated every 3 weeks with pertuzumab at a loading dose of 840 mg, and 420 mg thereafter; plus trastuzumab at a loading dose of 8 mg/kg and 6 mg/kg thereafter; and docetaxel at 75 mg/m². Treatment was given until toxicity or disease progression. The primary outcome was overall response rate (ORR). Other endpoints included duration of response, progression-free survival and safety. NCT number: NCT03845270. Results: From May 2019 to October 2020, 45 patients were enrolled in 17 centers and received study treatment. Median age was 64.5 years (range 31–84), 72% females, 35% smokers, 100% non-squamous histology and 15% with ECOG PS 2. 31.1% patients had brain metastases. PD-L1 was expressed ≥ 1% and ≥ 50% in 36% and 7% of the patients, respectively. No other oncogene driver was found associated with HER2 exon 20 mutation. With a median follow-up of 12 months, 44 (98%) patients were evaluable for the primary endpoint. Overall response rate was 29% (n = 13), stable disease 56% (n = 26). Median PFS was 6.8 months (95% CI[4.0-8.5]). Median duration of treatment in patients with confirmed response (n = 13) was 10 months (95% CI[2.7-14.9]). At the time of data cut-off, 15 patients (33%) were still under treatment. Grade 3/4 treatment-related adverse events (AEs) were observed in 64% of patients. No patient experienced treatment discontinuation because of toxicity. One sudden death was possibly related to treatment. Most frequent grade ≥ 3 AEs were neutropenia (33%), diarrhea (13%) and anaemia (9%). Grade 1/2 dyspnea was observed in 3 (6.7%) patients. No ILD were reported. Variation LVEF was -1.72% on average (min: -18 %; max: 10 %). Conclusions: The triplet trastuzumab, pertuzumab and docetaxel is feasible and active in HER2 pretreated advanced NSCLC. These results confirm the activity of HER2 antibodies-based strategy which should be considered in these patients. Clinical trial information: NCT03845270.


2018 ◽  
Vol 36 (20) ◽  
pp. 2052-2060 ◽  
Author(s):  
Erik van Dijk ◽  
Hedde D. Biesma ◽  
Martijn Cordes ◽  
Dominiek Smeets ◽  
Maarten Neerincx ◽  
...  

Purpose Patients with metastatic colorectal cancer (mCRC) have limited benefit from the addition of bevacizumab to standard chemotherapy. However, a subset probably benefits substantially, highlighting an unmet clinical need for a biomarker of response to bevacizumab. Previously, we demonstrated that losses of chromosomes 5q34, 17q12, and 18q11.2-q12.1 had a significant correlation with progression-free survival (PFS) in patients with mCRC treated with bevacizumab in the CAIRO2 clinical trial but not in patients who did not receive bevacizumab in the CAIRO trial. This study was designed to validate these findings. Materials and Methods Primary mCRC samples were analyzed from two cohorts of patients who received bevacizumab as first-line treatment; 96 samples from the European multicenter study Angiopredict (APD) and 81 samples from the Italian multicenter study, MOMA. A third cohort of 90 samples from patients with mCRC who did not receive bevacizumab was analyzed. Copy number aberrations of tumor biopsy specimens were measured by shallow whole-genome sequencing and were correlated with PFS, overall survival (OS), and response. Results Loss of chromosome 18q11.2-q12.1 was associated with prolonged PFS most significantly in both the cohorts that received bevacizumab (APD: hazard ratio, 0.54; P = .01; PFS difference, 65 days; MOMA: hazard ratio, 0.55; P = .019; PFS difference, 49 days). A similar association was found for OS and overall response rate in these two cohorts, which became significant when combined with the CAIRO2 cohort. Median PFS in the cohort of patients with mCRC who did not receive bevacizumab and in the CAIRO cohort was similar to that of the APD, MOMA, and CAIRO2 patients without an 18q11.2-q12.1 loss. Conclusion We conclude that the loss of chromosome 18q11.2-q12.1 is consistently predictive for prolonged PFS in patients receiving bevacizumab. The predictive value of this loss is substantiated by a significant gain in OS and overall response rate.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 2480-2480 ◽  
Author(s):  
Jonathan Friedberg ◽  
Philip Cohen ◽  
Robert O. Kerr ◽  
K. Sue Robinson ◽  
Andres Forero-Torres ◽  
...  

Abstract SDX-105 (Treanda™, Bendamustine HCl) is an alkylating agent that may exert its anti-tumor activity via mitotic catastrophe, an apoptosis-independent cell-death pathway, as well as, through apoptosis. Its cytotoxic potency is unattenuated in chemotherapy-resistant lymphoma cell lines. We initiated a multi-center Phase II trial to investigate the safety and efficacy of SDX-105 in patients with rituximab-refractory, relapsed indolent or transformed B cell NHL. Patients must have pathologically-confirmed disease that has been demonstrated to be rituximab-refractory (no response or progression within 6 months) or must be intolerant of rituximab. Other requirements include measurable disease, adequate renal, hepatic and bone marrow function (ANC ≥1K/mm3, platelet ≥ 100K/mm3, except in cases of &gt;50% NHL in bone marrow), up to 3 prior chemotherapies, and no prior allogeneic transplant. Patients receive SDX-105, 120 mg/m2 IV over 30–60 min, days 1 and 2, every 21 days. Grade 4 hematologic toxicity during a cycle results in dose reduction for subsequent cycles (to 90 mg/m2 and then to 60 mg/m2). Patients achieving stable disease or better after 6 cycles may receive up to 6 more cycles. 49 patients have been accrued to date with data available on the first 15 patients. The median age is 69 yrs (range 47–84), 47% male, median 6 yrs since diagnosis with NHL. Histologies: 10 follicular (6 Grade 1, 3 Grade 2, 1 Grade 3), 2 SLL, 1 marginal zone and 2 transformed NHL. Other features include: 93% Stage III/IV, 20% with B symptoms, 87% with extranodal disease, median 2 prior chemotherapies with 40% not responding to last chemotherapy. 4 patients have required dose reduction to 90 mg/m2 and 2 patients have withdrawn prior to completing 6 cycles due to treatment-associated toxicity. The current overall response rate (ORR) based upon best response in the intent-to-treat population is 80% (CR/CRu 20%, PR 60%). Overall 73% of patients experienced a related non-hematologic adverse event (AE), of which 20% were Grade 3 and 0% Grade 4. The most frequent AEs were nausea (40%), vomiting (27%), fatigue (33%), anorexia (20%), and constipation (20%). Alopecia was not observed. Grade 3 or 4 hematologic toxicity was seen in 53% (neutropenia), 20% (thrombocytopenia), and 13% (anemia) of patients. 4 patients experienced serious AEs, including 1 patient with baseline renal insufficiency who died on study from renal failure and pulmonary edema; other events include admissions for fever and anemia, urinary tract infection, and dehydration. Based upon these preliminary findings, SDX-105 demonstrates a high overall response rate with acceptable hematologic toxicity and modest non-hematologic toxicity in a relapsed lymphoma patient population, many of whom are refractory to rituximab-chemotherapy combinations. An additional study evaluating the combination of SDX-105 and rituximab in patients with relapsed indolent NHL who are rituximab-sensitive is also ongoing.


Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 2555-2555 ◽  
Author(s):  
Rakesh Popat ◽  
Heather E. Oakervee ◽  
Nicola Foot ◽  
Samir Agrawal ◽  
Patricia Smith ◽  
...  

Abstract Background: Bortezomib as a single agent has known efficacy in the treatment of relapsed multiple myeloma. The overall response rate (CR+PR+MR) was 35% in the SUMMIT study and 46% in the APEX study. In-vitro studies including our own have demonstrated potent synergy with other chemotherapeutic agents such as melphalan. It therefore follows that responses to bortezomib may be further improved by the combination of such drugs. Aims: The primary objectives of this Phase I/II study was to assess the safety, tolerability and response rates in patients with relapsed multiple myeloma; secondary objectives being time to progression (TTP) and overall surival (OS). Methods: This was a multi-centre, non-randomised trial for patients with relapsed myeloma. Patients received bortezomib 1.3mg/m2 on days 1,4,8 and 11 of each 28 day cycle with melphalan on day 2 at increasing dose levels. This was initially at 10mg/m2, but due to cytopenias subsequently at 2.5 and 5mg/m2 (levels 1a, 1 and 2) and we plan to escalate to 7.5mg/m2. Up to 8 cycles were given with dexamethasone added for stable or progressive disease after 4 or 2 cycles respectively. Responses were determined by EBMT criteria. Results: To date, 18 patients have been enrolled (12 male 6 female; median age 60 [range 44–73]; median number of prior therapies 3 [range 1–5] of which 17 have had at least one autologous stem cell procedure with high dose melphalan; 10 prior thalidomide and 2 prior bortezomib). 12 patients received melphalan at 10mg/m2 but due to unacceptable delays predominantly due to thrombocytopaenia, subsequent treatment levels commenced at 2.5mg/m2. The median number of cycles completed thus far is 4 (range 0–8) and of the 16 evaluable, the overall response rate (CR+PR+MR) across all treatment levels was 50% rising to 75% following the addition of dexamethasone as per protocol. At level 1a (melphalan 10mg/m2 ,N=12, median number of cycles completed =5) the best responses (with dexamethasone as indicated) were: 1CR, 1 VGPR, 5 PR, 2 MR; at level 1 (melphalan 2.5mg/m2, N=4) 1 PR, 2 MR (after 2 cycles only). The median time to any response was 1 cycle (range 1–3 ). Three patients have progressive disease, but the median TTP and OS have not yet been reached (median follow-up 3 months). Non-haematological toxicities have been modest with 7 SAEs reported of which only 1 was possibly drug related (myocardial infarction), and 4 episodes of Grade 3 neuropathy (2 resulting in study withdrawal). The commonest grade 3–4 haematological toxicity was thrombocytopaenia (N=10) complicated by bleeding in one patient, followed by neutropenia (N=6). Summary: The combination of bortezomib and intravenous melphalan can be given safely to patients with relapsed multiple myeloma and dose escalation is ongoing. Myelosupression was the commonest grade 3–4 adverse event. A response rate of 50% was seen, which was further improved to 75% with the addition of dexamethasone. This combination may therefore result in higher responses than single agent bortezomib in heavily pretreated patients.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 3067-3067 ◽  
Author(s):  
Lisa Hicks ◽  
Rena Buckstein ◽  
Joy Mangel ◽  
Eugenia Piliotis ◽  
Kevin Imrie ◽  
...  

Abstract Background: Patients with relapsed or refractory aggressive B-cell lymphoma, or transformed indolent lymphoma can achieve long-term survival with high dose therapy and autologous stem cell transplant (HDT/ASCT), provided their disease is sensitive to salvage chemotherapy. Unfortunately, approximately 50% of patients are insensitive to standard salvage regimens. Objectives: This trial investigated whether adding Rituximab to ESHAP (etoposide, solumedrol, cytosine arabinoside, cisplatin) induction improved chemosensitivity. The primary outcome was overall response rate (CR + CRu + PR) to R-ESHAP. Secondary outcomes were toxicity, ability to undergo ASCT, progression free survival (PFS) and overall survival (OS). Methods: The protocol was approved by the local ethics review board and all patients provided informed consent. Eligible patients received ESHAP every 28 days with GCSF support until < 15% bone marrow involvement was achieved (2–4 cycles). Rituximab was given weekly x 8 weeks concurrent with the first 2 cycles of ESHAP. GCSF mobilized stems cells were collected on day 10–11 of cycle 1 or 2. Results: The trial was stopped early after the complete response (CR) rate at a planned interim analysis exceeded 40% (a pre-specified criteria for stopping the trial). Final results of 26 patients are presented. Median age was 55.5 years (range 42–64). Twelve patients had relapsed aggressive lymphoma, 2 had refractory disease and 12 had transformed indolent lymphoma. Twenty-two of 26 patients were stage III/IV. The overall response rate to R-ESHAP was 92% (95% CI 82% to 100%). Twelve patients (46%; 95% CI 27% to 65%) had a CR or unconfirmed CR. Grade 3–4 thrombocytopenia, neutropenia, and anemia occurred in 57%, 40%, and 15% of R-ESHAP cycles respectively. Grade 3–4 infections complicated 7% of cycles. Median follow-up was 17 months (range 2.9 to 43.2) from enrollment. Twenty-three of 26 patients (88%) were transplanted. Notable post-transplant toxicity included 5 cases of herpes zoster, 2 cases of bacterial pneumonia, 1 case of pulmonary aspergillosis, and 1 fatal case of pneumocystis carnii pneumonia (PCP). Three patients did not proceed to HDT/ASCT; 2 were refractory to R-ESHAP and 1 died of a myocardial infarction after induction chemotherapy but prior to ASCT. Fifteen of 23 patients who received ASCT remain in remission, 6 have relapsed. Seven patients have died, 4 of progressive disease, 1 of myocardial infarction, 1 of PCP, and 1 of accelerated Parkinson’s Disease. Median PFS and median OS have not yet been reached. Conclusions: In this single-arm, phase II study of relapsed or refractory aggressive B-cell lymphoma and transformed indolent B-cell lymphoma, R-ESHAP induction therapy resulted in a very high ORR (92%) and enabled a large percentage of patients (88%) to proceed to HDT/ASCT. Toxicity of the R-ESHAP regimen was acceptable, and its efficacy compared favorably with other salvage regimens reported in the literature, including R-ICE.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 3542-3542 ◽  
Author(s):  
Rakesh Popat ◽  
Catherine Williams ◽  
Mark Cook ◽  
Charles Craddock ◽  
Supratik Basu ◽  
...  

Abstract Background: Bortezomib is an effective treatment for patients with relapsed multiple myeloma with an overall response rate (MR+PR+CR) of 46% and time to progression of 6.2 months (APEX study). We and others have previously demonstrated potent in-vitro synergy with chemotherapeutic agents such as melphalan and it is likely that this will translate into improved responses in the clinical setting. Methods: This was a multi-centre, non-randomised Phase I/II clinical trial for patients with relapsed multiple myeloma. Bortezomib 1.3mg/m2 was given on Days 1,4,8 and 11 of a 28 day cycle, and intravenous melphalan on Day 2 for a maximum of 8 cycles. In the Phase I component melphalan was given at 2.5, 5,7.5 and 10mg/m2 in a dose escalation scheme and the maximum tolerated dose (MTD) of 7.5mg/m2 was taken forward to an expanded Phase II component. Dexamethasone 20mg on the day of and the day after each dose of bortezomib was permitted for progressive or stable disease after 2 or 4 cycles respectively. Responses were classified by EBMT criteria. Results: To date 39 patients have been enrolled (median age 61years [range 40–77]) with a median of 3 lines of prior therapy [range 1–5] of which 26 (67%) have had one previous autologous stem cell procedure and 4 (10%) have had two. 23 (59%) have had prior exposure to thalidomide and 4 (10%) to bortezomib. 36 have now completed at least 1 cycle and are therefore evaluable for response. The overall response rate (CR+PR+MR) across all treatment levels was 75% rising to 81% (CR 11%; nCR 3%; VGPR 8%; PR 39%; MR 19%) with the addition of dexamethasone in 13 cases for suboptimal response. Rapid responses were seen with the median time to response being 1 month [range 1–6]. The median time to progression is 10.1 months and the median overall survival has not yet been reached at a median follow-up of 7.4 months. Of the patients that have had disease progression 7 (35%) had responses of longer duration than their previous therapy. The MTD was defined by unacceptable delays in administering treatment due to myelosuppresion. The toxicities have been acceptable with 13 SAEs reported of which 8 were hospitalisation due to infection. The most common grade 3–4 adverse events were: thrombocytopenia (53%), infections (25%), neutropenia (17%) and neuropathy (17%). Three grade 3 cardiac events were seen (myocardial infarction, atrial fibrillation and cardiac failure) and GCSF was administered to 13 patients as treatment and prophylaxis of grade 4 neutropenia. 13 patients were withdrawn from the study due to toxicity of which 7 were for neuropathy and 3 for delayed haematological recovery. Of note, 11 patients (28%) had pre-existing grade 1 neuropathy prior to starting therapy. Summary: The combination of bortezomib, low dose intravenous melphalan and dexamethasone appears to be highly effective in patients with relapsed multiple myeloma where a response rate of 81% is seen with 14% achieving nCR/CR. The toxicity profile associated is predictable, manageable and predominantly haematological. Recruitment is ongoing to a total of 53 patients.


Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 2713-2713
Author(s):  
Rakesh Popat ◽  
Catherine Williams ◽  
Mark Cook ◽  
Charles Craddock ◽  
Supratik Basu ◽  
...  

Abstract Background: Bortezomib is an effective treatment for patients with relapsed multiple myeloma with an overall response rate (≥PR) of 43% and time to progression of 6.2 months (APEX study). We and others have previously demonstrated potent in-vitro synergy with chemotherapeutic agents such as melphalan and it is likely that this will translate into improved responses in the clinical setting. Methods: This was a multi-centre, non-randomised Phase I/II clinical trial for patients with relapsed multiple myeloma. Bortezomib 1.3mg/m2 was given on Days 1,4,8 and 11 of a 28 day cycle, and intravenous melphalan on Day 2 for a maximum of 8 cycles. In the Phase I component melphalan was given at 2.5, 5,7.5 and 10mg/m2 in a dose escalation scheme and the maximum tolerated dose (MTD) of 7.5mg/m2 was taken forward to an expanded Phase II component. Dexamethasone 20mg on the day of and the day after each dose of bortezomib was permitted for progressive or stable disease after 2 or 4 cycles respectively. Responses were defined by EBMT criteria. Results: 53 patients were enrolled (median age 61years [range 40–77]) with a median of 3 lines of prior therapy [range 1–5] of which 26 (67%) have had one previous autologous stem cell procedure and 4 (10%) have had two. 23 (59%) have had prior exposure to thalidomide and 4 (10%) to bortezomib. The overall response rate (≥PR) across all treatment levels (n=52) was 65% rising to 69% (CR 19%; nCR 4%; VGPR 6%; PR 40%; MR 15%) with the addition of dexamethasone in 27 cases for suboptimal response. Of the 32 patients treated at the MTD the overall response rate (≥PR) was 78% (CR 28%; nCR 6%; VGPR 6%; PR 38%; MR 9%). Rapid responses were seen with the median time to response being 1 month [range 1–6]. The median time to progression was 10 months and the median overall survival has not yet been reached at a median follow-up of 17 months. Of the patients that have had disease progression 7 (35%) had responses of longer duration than their previous therapy. The MTD was defined by unacceptable delays in administering treatment due to myelosuppresion. The toxicities have been acceptable with 13 SAEs reported of which 8 were hospitalisation due to infection. The most common grade 3–4 adverse events were: thrombocytopenia (53%), infections (25%), neutropenia (17%) and neuropathy (17%). Three grade 3 cardiac events were seen (myocardial infarction, atrial fibrillation and cardiac failure) and GCSF was administered to 13 patients as treatment and prophylaxis of grade 4 neutropenia. 19 patients were withdrawn from the study due to toxicity of which 7 were for neuropathy and 3 for delayed haematological recovery. Of note, 11 patients (28%) had pre-existing grade 1 neuropathy prior to starting therapy. Summary: The combination of bortezomib, low dose intravenous melphalan and dexamethasone appears to be highly effective in patients with relapsed multiple myeloma with a response rate (≥PR) at the MTD of 78% including 34% nCR/CR. The toxicity profile is predominantly haematological.


Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 1011-1011
Author(s):  
Irene M. Ghobrial ◽  
Stacey Chuma ◽  
Amy Sam ◽  
Renee Leduc ◽  
Marybeth Nelson ◽  
...  

Abstract INTRODUCTION: Previous studies have demonstrated the clinical activity of the mTOR inhibitor RAD001 in low- grade lymphomas. Our preclinical studies demonstrated activity of mTOR inhibitors in Waldenstrom Macroglobulinemia (WM) cell lines and patient samples. This phase II study aimed to determine safety and activity of the oral mTOR inhibitor RAD001 (Novartis Pharmaceutical, MA) in patients with relapsed or refractory WM. METHODS: Patients who had at least one previous therapy for WM, and who had symptomatic relapsed or refractory disease were eligible. NCI CTCAE v3.0 was used for toxicity assessment. All patients received daily RAD001 at 10 mg. A cycle was considered 28 days. Patients were allowed to stay on therapy until progression of disease or excessive toxicity. This study was conducted in a collaborative effort between Dana Farber Cancer Institute (DFCI) and Mayo Clinic College of Medicine. Here, we report the data on the patients accrued at DFCI. RESULTS: 19 pts (15 men and 4 women) have been treated to date. All patients had symptomatic disease and required therapy. The median number of lines of prior treatment was 3 (range 1 – 5) including included rituximab, nucleoside analogues (fludarabine or 2-CDA), combination chemotherapy (e.g. CHOP, CVP), chloramucil, and bortezomib. The median IgM at baseline was 3330 mg/dL (range 1010– 7410). The median follow on RAD001 was 8 months (range 3 – 22 months). Eighteen pts are currently evaluable for response. Best responses to RAD001 after 2 cycles using IgM monoclonal protein were as follows: partial remission in 8 (44%), minimal response in 5 (28%). Progressive disease occurred in 4 (22%) and stable disease occurred in 1 (6%). The overall response rate (PR+MR) was 72%. The median duration of response has not been reached (3–22+ months). Patients tolerated therapy well without significant toxicities. Grade 3 and 4 toxicities included grade 4 thrombocytopenia in 1 patient, grade 3 pneumonia in 1 patient, grade 3 hyperglycemia in 1 patient and grade 3 mucositis in 1 patient. Other adverse events of grade 2 or lower included nail cracking, mucositis, diarrhea, and fatigue. Attributable toxicities otherwise proved manageable with appropriate supportive care, and RAD001 was generally well tolerated. One patient enrolled on the study withdrew consent and changed to hospice care within 3 weeks of therapy, and passed away due to disease progression. CONCLUSIONS: The use of the oral RAD001 single agent RAD001 in patients with relapsed or refractory WM was welltolerated and demonstrated significant activity achieving an overall response rate in 72% of patients. Future studies of combination of this agent with rituximab and bortezomib are currently being planned.


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