scholarly journals Bendamustine With Dexamethasone in Relapsed/Refractory Systemic Light-Chain Amyloidosis: Results of a Phase II Study

2020 ◽  
Vol 38 (13) ◽  
pp. 1455-1462 ◽  
Author(s):  
Suzanne Lentzsch ◽  
Galina G. Lagos ◽  
Raymond L. Comenzo ◽  
Jeffrey A. Zonder ◽  
Keren Osman ◽  
...  

PURPOSE No established treatments exist for relapsed/refractory systemic light-chain (AL) amyloidosis. Bendamustine has shown potential in the treatment of multiple myeloma. We conducted a phase II, multicenter trial to assess the efficacy and safety of bendamustine with dexamethasone (ben-dex) in patients with persistent or progressive AL amyloidosis after ≥ 1 prior therapy. METHODS The trial enrolled 31 patients who received bendamustine on days 1 and 2 (100 mg/m2 intravenously) with 40 mg of weekly dexamethasone in 28-day cycles until disease progression or up to 6 cycles after complete hematologic response. The primary objective was the rate of partial hematologic response (PR) or better. RESULTS Patients received a median of 4 cycles (range, 2-12 cycles) with 57% of patients achieving a PR or better (11% complete response, 18% very good PR). The overall organ response was 29% among the 24 patients who had measurable organ involvement. Treatment was well tolerated with no grade 5 treatment-related adverse events (AEs). Sixty-five percent of patients had a therapy-related grade 3-4 AE. The most common AEs included myelosuppression, fatigue, and nausea/vomiting. The median overall survival was 18.2 months (95% CI, 11.3 to 43.8 months), and hematologic response was associated with prolonged survival ( P = .0291). The median progression-free survival was 11.3 months (95% CI, 5.0 to 15.4 months). CONCLUSION Overall, ben-dex is a viable treatment option with substantial efficacy and limited toxicity for patients with pretreated AL amyloidosis who have limited therapeutic options. This trial was registered at (ClinicalTrials.gov identifier: NCT01222260 ).

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 8527-8527 ◽  
Author(s):  
R. Amaravadi ◽  
L. M. Schuchter ◽  
D. F. McDermott ◽  
A. Kramer ◽  
L. Giles ◽  
...  

8527 Background: The preliminary results for 90 patients (pt) on this 4-arm phase II trial testing sorafenib (SO), an oral Raf kinase/VEGFR2 inhibitor, and temozolomide (TEM) in pt with metastatic melanoma (MM) were presented in 2006. Since then 88% of target accrual is completed and the study is open at a second institution. The primary objective of this study is to estimate the duration of progression- free survival (PFS). Secondary objectives are to determine the optimal dosing of TEM, response, and toxicity rates. Correlative studies include BRAF genotyping and assessment of intratumoral Raf inhibition, and apoptosis. Methods: Pt with MM and ECOG PS<2 are eligible. Prior therapy is allowed. Target accrual is 167 pt in 1 stage. All pt receive SO 400 mg po bid continuously. After 1 week of SO alone, pt without brain metastasis or prior TEM (A+B) are randomized to receive either extended dosing (ED): TEM 75 mg/m2 po qd for 6/8 weeks (Arm A), or standard dosing (STD): TEM 150 mg/m2 po qd for days1–5/28 (Arm B). Pt with prior TEM are treated with ED (Arm C) and pt with brain metastasis without prior TEM are treated with STD (Arm D). Responses are assessed using RECIST. Results: Accrual is complete for arms A and B. Results for 147 pt were evaluated ( Table ). SO + TEM resulted in a 19% overall response rate (ORR) [95% CI 11–30%] for pt on arms A+B. In this group, 3/78 pt (4%) developed CNS metastases while on study. Pt on arm D had a 17 % ORR [95% CI 7–34%]. Common grade 3 toxicities were hand-foot syndrome (14%), rash (9%), nausea (9%), and diarrhea (5%). Grade 3 lymphopenia was more common in arm A v. B (43% v. 16%, p=0.01). No significant difference in PFS was found between pt with WT v. mutant BRAF (n=33). Therapy-induced apoptosis was found in 8/9 serial biopsies. Analysis of MAPK phosphorylation in serial biopsies is planned. Conclusions: Updated results confirm the encouraging antitumor activity and tolerability of SO + TEM in pt with MM without a prior history of TEM. No significant financial relationships to disclose. [Table: see text]


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 8023-8023 ◽  
Author(s):  
Michinori Ogura ◽  
Kiyoshi Ando ◽  
Nozomi Niitsu ◽  
Seok Jin Kim ◽  
Ken Ohmachi ◽  
...  

8023 Background: Effective salvage therapies are needed in patients (pts) with relapsed/refractory DLBCL after R-CHOP. Therapy with bendamustine plus rituximab (B-R) was well tolerated and effective in the preceding phase I study in relapsed/refractory aggressive B-cell non-Hodgkin lymphoma, including DLBCL. This phase II study assessed the efficacy and safety of B-R in pts with relapsed/refractory DLBCL. Methods: Pts with histologically confirmed DLBCL (excluding transformed disease) and 1-3 prior therapies received rituximab 375 mg/m2 IV on day 1 and bendamustine 120 mg/m2 IV on days 2 and 3 of each 21-day cycle, for up to 6 cycles. Recovery of neutrophil count to ≥1,000/mm3 and platelet count to ≥75,000/mm3 were required prior to the start of each cycle; treatment delays >2 weeks resulted in discontinuation. The primary endpoint was overall response rate (ORR); secondary endpoints included complete response (CR) rate, progression-free survival (PFS), and safety. Results: A total of 63 pts were enrolled; data from 59 pts were available. Median age was 67 (range, 36-75) years with 37 pts over 65 years. The majority of pts (64.4%) had 1 prior therapy; 57 pts (96.6%) were previously treated with rituximab-containing combination chemotherapy and 8 (13.6%) had prior auto-PBSCT. Pts received a median of 4 (range, 1-6) treatment cycles. Sixteen (27.1%) pts completed 6 treatment cycles; most common reasons for early discontinuation were disease progression (n=15) and failure to meet criteria to start the next cycle (n=13). Among 59 pts evaluable for response, ORR was 62.7% with a 37.3% CR rate. The median PFS was 200 days (95% CI, 109-410). Most common grade 3/4 adverse events (AEs) included CD4 lymphocytes decreased (66.1%), neutropenia (54.2%), and thrombocytopenia (10.2%). Four (6.8%) pts discontinued due to serious AEs (cytomegalovirus infection, infection, pneumonia, and pneumonia/respiratory failure). Conclusions: B-R demonstrated promising activity in pts with relapsed/refractory DLBCL. Toxicity was primarily hematologic and generally manageable. These results suggest that B-R is a promising salvage regimen for pts with relapsed/refractory DLBCL after R-CHOP.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 8009-8009 ◽  
Author(s):  
R. K. Amaravadi ◽  
L. M. Schuchter ◽  
A. Kramer ◽  
S. F. Barth ◽  
J. Villanueva ◽  
...  

8009 Background: Sorafenib (SO) is an oral Raf kinase/VEGFR-2 inhibitor that has anti-melanoma activity when given with carboplatin/paclitaxel. The primary objective of this study is to estimate the duration of progression-free survival (PFS) for patients with metastatic melanoma (MM) taking SO + temozolomide (TEM). Secondary objectives are to determine the optimal dosing of TEM when given with SO, response, and toxicity rates. Correlative studies include BRAF genotyping and assessment of intratumoral Raf inhibition. Methods: Patients with MM and ECOG PS<2 are eligible. Prior therapy is allowed. Accrual is designed for 167 patients in one stage. All patients receive SO 400 mg po bid continuously. After one week of SO alone, patients without brain metastasis and no prior TEM are randomized to receive either extended daily dosing (EDD): TEM 75 mg/m2 po qd for 6 /8 weeks (Arm A), or standard dosing (STD): TEM 150 mg/m2 po qd for days1–5/28 (Arm B). Patients with prior TEM use are treated with EDD (Arm C) and patients with brain metastasis without prior TEM are treated with STD (Arm D). Responses are assessed using RECIST criteria. Results: 65 patients were evaluated for toxicity. Of these, 58 received SO + TEM and were evaluable for response (Table). SO + TEM resulted in a 24% overall response rate (ORR) [95% CI 11–41%] in patients without brain metastasis or prior TEM and 20% ORR [95% CI 3–56%] in patients with brain metastasis and no prior TEM. Observed grade 3 toxicities attributable to study medication were: hand-foot syndrome (12%), rash (8%), nausea (5%), anorexia (8%), and hypertension (3%). Nausea and anorexia were more prevalent with STD. Tumor blocks and 8 paired biopsy samples have been collected for correlative studies. Conclusions: Initial phase II results demonstrate encouraging antitumor activity and safety profile for SO + TEM in MM. Updated PFS data, response and toxicity rates, and correlative results will be presented. [Table: see text] [Table: see text]


1999 ◽  
Vol 17 (1) ◽  
pp. 25-25 ◽  
Author(s):  
M. J. Byrne ◽  
J. A. Davidson ◽  
A. W. Musk ◽  
J. Dewar ◽  
G. van Hazel ◽  
...  

PURPOSE: We performed a phase II study of combined cisplatin 100 mg/m2, given intravenously on day 1, and gemcitabine 1,000 mg/m2, given intravenously on days 1, 8, and 15 of a 28-day cycle for six cycles among patients with advanced measurable pleural mesothelioma. PATIENTS AND METHODS: Pleural tumor was measured at three levels on computed tomographic scans at study entry and before the second, fourth, and sixth cycles and every 2 months thereafter to disease progression. Of the 21 patients treated, 19 were male; the median age was 62 years (range, 46 to 74 years); 62% had epithelial tumors; and 18 were classified as tumor-node-metastasis system stage III or IV. Ninety-four cycles were given (median, six; mean, 4.5 per patient), with a mean relative dose intensity of cisplatin 96.7% and gemcitabine 82.5%. RESULTS: Best objective responses achieved were as follows: complete response, no patients; partial response, 10 patients (complete response + partial response, 47.6% [95% confidence interval, 26.2% to 69.0%]); no change, nine patients; and progressive disease, two patients. Median response duration was 25 weeks, progression-free survival was 25 weeks, and overall survival was 41 weeks. Nine of the 10 responders (90%) and three of nine patients with no change had significant symptom improvement. Serial measurements of vital capacity were performed on three of the responders; all showed a significant increase during the time of remission. Toxicity was mainly gastroenterologic and hematologic. Grade 3 nausea and vomiting occurred in 33% of patients, grade 3 leukopenia in 38%, grade 3 thrombocytopenia in 14%, and grade 4 thrombocytopenia in 19%. CONCLUSION: Combined cisplatin and gemcitabine is an active combination in malignant mesothelioma and produces symptomatic benefit in responding patients.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 3284-3284 ◽  
Author(s):  
David L. Grinblatt ◽  
Jeffrey Johnson ◽  
Donna Niedzwicki ◽  
David A. Rizzieri ◽  
Nancy Bartlett ◽  
...  

Abstract Background: Thalidomide has marked activity in both untreated and heavily pretreated myeloma. Its activity in part is believed to be due to inhibition of bFGF and VEGF induced angiogenesis. Elevated levels of bFGF in serum and urine have correlated with decreased survival in lymphoma possibly through up-regulation of BCL-2. Methods: 25 patients (pts) with previously treated F-NHL and SLL were registered and treated on this multi-institutional study from July 2001–April 2004 to evaluate the efficacy and safety of oral thalidomide in this patient group. Pts had B-cell SLL (7: 36.8%), F-NHL grade 1 (7: 36.8%), grade 2 (3: 15.8%) and grade 3 (2: 10.1%) NHL. Pts were eligible for entry with up to 3 prior chemotherapy (CT) and 2 immunotherapy (IT) regimens provided performance status was ≥ 1. Pts with new onset of B-symptoms, rising LDH, rapid tumor growth or greater than one year from initial diagnosis were required to undergo repeat lymph node biopsy to exclude recent transformation. Pts with CNS involvement, prior peripheral neuropathy >gr 1, HIV+, and pregnant or nursing women were also excluded. Pts were required to have Cr <2 x ULN, AST/ALT <2.5 x ULN and an ANC > 750. Median age at study entry was 60 years (36–87). Prior therapy was evaluated in 20 pts and 17/20 had received multi-agent CT while 12/20 pts received prior IT. Thalidomide was initiated at a dose of 200 mg daily and escalated by 100 mg daily every 1–2 weeks as tolerated with a maximal dose of 800 mg/d. If ≥ gr 2 peripheral neuropathy or ≥ gr 3 somnolence or mood changes occurred, the dose was held for one week and restarted at 50% of the prior daily dosage. Results: The median daily dose was 400 mg (range 50–800 mg). There was 1 complete response (CRu-residual abnormality) in a pt with SLL and one partial response in a pt with F-NHL grade 1 (ORR 8%: 95%CI: 1–26%). 16 pts had progressive disease during therapy and 2 died of disease soon after stopping therapy due to adverse events. One patient continues on therapy without progression of disease to date. The remaining 4 pts were taken off of therapy prior to the first 3 month evaluation. The reason for withdrawal was pt refusal (2) and adverse events (2). The median event free survival was 2.6 months (95% CI:1.4–4.4 mos) with a median overall survival of 23.3 months. Toxicity information on 24/25 pts revealed 4 (17%) with grade 4 neutropenia with 1/4 febrile as well. The most common grade 3 toxicities were anemia (13%), dyspnea (13%), fatigue (8%) and neurologic toxicities consisting of somnolence, dizziness, depression and anxiety (21%). Peripheral sensory neuropathy was reported as gr 2 in 8% and gr 3 in 8%. However, 38% of pts were reported as experiencing gr 2 fatigue. There were no grade 5 toxicities. Conclusion: These phase II trial results in a pretreated pt population demonstrate that, despite an acceptable toxicity profile, thalidomide has only minimal efficacy in F- NHL and SLL.


Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 4614-4614
Author(s):  
Alessandro Re ◽  
Gina Gregorini ◽  
Annalisa Peli ◽  
Matilde Nardi ◽  
Claudia Crippa ◽  
...  

Abstract Abstract 4614 Treatment of patients (pts) with systemic AL Amyloidosis remains challenging and organ dysfunctions improve in not more than 1/3 of cases with standard treatment. Bortezomib has been reported to have activity in this disease, where the misfolded protein may render the amyloidogenic plasma cells particularly vulnerable to proteasome inhibition. To evaluate the feasibility and efficacy of Bortezomib, we report our single center experience with Bortezomib-containing regimens in pts with AL Amyloidosis. Hematologic responses and functional organ responses were evaluated according to the 2005 International Society of Amyloidosis criteria (Gertz et al, Am J Hematol 2005). Complete hematologic response (CR) was defined as normalization of the free light chain ratio with no evidence of a monoclonal protein by immunofixation and partial response (PR) as a 50% reduction in M-spike or absolute light chain level; moreover, dFLC (difference between involved and uninvolved free light chain) &lt; 40 mg/L defined a very good PR (VGPR). A cardiac response was also defined by NT-proBNP criteria (&gt;30% and &gt;300 mg/L decrease in pts with baseline NT-proBNP &gt; 650 mg/L). Since May 2010, 21 consecutive pts with AL Amyloidosis were treated with Bortezomib-containing regimens at our center: Bortezomib-Dexamethasone (Vel-D), 5 pts; Cyclophosphamide-Bortezomib-Dexamethasone (CyBOR-D), 14 pts; Bortezomib-Melphalan-Prednisone (VMP),2 pts. Median age was 62 years (43-74). Fifteen pts were treated upfront, while 7 had refractory or relapsed disease after several lines of therapy. According to the cardiac staging system based on NT-proBNP and troponin I, 6 (29%) pts were stage 1, 9 (42%) stage 2 and 6 (29%) stage 3. At the time of this report 9 pts, still on treatment, have received less than 4 cycles and are not yet evaluable for response. Twelve pts received a median of 5,5 cycles (range, 4–8) and were analysed for outcome. Five received Vel-D, 5 CyBOR-D and 2 VMP. Eight were treated upfront and 4 after previous treatment (including ASCT in 3). Ten (83%) had renal, 6 (50%) cardiac, 2 (17%) soft tissue, 3 (25%) nerve, 2 (17%) gastrointestinal tract and 1 (8%) liver involvement. Four pts (33%) achieved hematologic CR, 3 (25%) VGPR and 3 (25%) PR (overall hematologic response rate (ORR) 83%), with no difference in ORR between Vel-D and CyBOR-D. One pt had a stable disease and 1, treated for second relapse, had progressive disease and died. Median time to response was 2 months (2-4). One pt underwent HD-MEL after PR with Vel-D and 3 pts had peripheral blood stem cells collected (soon after diagnosis (2) and after initial response (1)) and cryopreserved (to perform ASCT if unsatisfactory response or relapse). Four of eight evaluable pts (50%) had a renal response and 4/6 (66%) had a cardiac response. Hematologic toxicity was negligible; 6 pts had significant extra-hematologic complications, including 3 heart failure, 2 interstitial and 1 bacterial pneumonia, 1 Staph. sepsis, 1 H1N1 virus infection, 1 CMV reactivation, 1 grade 3 neuropathy and 1 grade 3 diarrhoea. No pts died because of toxicity. CyBor-D was apparently better tolerated. In this unselected series of systemic AL Amyloidosis, Bortezomib-containing regimens produced rapid hematologic response in the great majority of pts, with and an high rate of organ response. Bortezomib represents a major advance in the clinical management of this disease. Disclosures: No relevant conflicts of interest to declare.


Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 5036-5036 ◽  
Author(s):  
Beihui Huang ◽  
Juan Li ◽  
Junru Liu ◽  
Dong Zheng ◽  
Mei Chen ◽  
...  

Abstract Abstract 5036 Objective: To assess the efficacy and tolerability of bortezomib with dexamethasone for patients with primary systemic light chain (AL) amyloidosis or multiple myeloma-associated AL amyloidosis. Methods: Twelve newly diagnosed patients with primary systemic AL amyloidosis and six patient with multiple myeloma-associated AL amyloidosis were treated with a combination of bortezomib (1. 3 mg/m2 d1, 4, 8, 11) and dexamethasone (20 mg d1–4). Results: Sixteen patients was evaluable. 12/16 had a hematologic response and 6/16 (37. 5%) a hematologic complete response. Median cycles to response was 1 cycle and median cycles to best response was 2 cycles. In patients with primary AL amyloidosis, 8/10 (80. 0%) had a hematologic response and 5/10 (50. 0%) a hematologic complete response. In patients with myeloma-associated AL amyloidosis, 7/10 (70. 0%) had a hematologic response and 1/6 (16. 7%) a hematologic complete response. Twelve patients (75. 0%) had a response in at least one affected organ, in which 7 in patients with primary AL amyloidosis and 5 in myeloma-associated AL amyloidosis. Person correlation between hematologic response and organ response was 0. 667 (p=0. 005). Fatigue, diarrhea and infection were the most frequent side effects. Three patients developed herpes zoster and had to stop chemotherapy. Conclusions: VD produces rapid and high hematological responses in the majority of patients with newly diagnosed AL regardless of primary or associated with myeloma. It is well tolerated with few side effects. This treatment may be a valid option as first-line treatment for newly diagnosed patients with primary systemic AL amyloidosis and multiple myeloma-associated AL amyloidosis. Disclosures: No relevant conflicts of interest to declare.


2014 ◽  
Vol 32 (4_suppl) ◽  
pp. 307-307 ◽  
Author(s):  
Andrea Borghese Apolo ◽  
Howard L. Parnes ◽  
Ravi Amrit Madan ◽  
James L. Gulley ◽  
John Joseph Wright ◽  
...  

307 Background: Translational studies have shown that shed MET levels in serum and urine of pts with UC correlate with stage and visceral metastases and that cabozantinib reverses HGF-driven UC cell growth and invasion. These data support the evaluation of cabozantinib in pts with mUC. Methods: In this phase II study, pts receive cabozantinib 60 mg daily in 28-day cycles. There are 3 study cohorts (1) mUC, (2) bone only mUC (3) metastatic rare bladder histology. The primary objective is to determine the response rate (RR) by RECIST. Response is assessed every 2 cycles. Tissue, blood, and urine were collected on all pts to test for MET/HGF and immune subsets. Results: 26 out of 55 pts have enrolled (19 M, 7 F): median age 62 (42-82) and median KPS of 80%. Primary sites include bladder (77%) and upper tract UC (23%). Prior therapy includes 30% pts with 1 regimen, 39% with 2, 15% with 3, 8% with 4 and 8% with 6. 81% of pts had visceral metastases (lung, liver and bone) and 19% lymph node only metastases. 23 pts (19 in cohort 1, 3 in cohort 2 and 1 in cohort 3) were evaluable for response after completing at least 4 weeks of therapy. In cohort 1, 2 pts achieved PR (1 remained on study for 10 months and 1 remains on study after >12 months of therapy); 7 pts had SD for at least 16 weeks (1 remained on study for 11 months); 10 had PD; 1 is too early to assess for response; 1 was removed before restaging for toxicity and 1 was removed for not meeting eligibility. The objective RR is 11% and SD 37% for a clinical benefit of 48%. In cohort 2, 1 of 3 pts had a near resolution of bone lesions on NaF PET/CT for 11 months. In cohort 3, only pt enrolled (squamous cell carcinoma of the bladder) achieved SD for 16 weeks. Mixed responses with regression of lung, bone or lymph nodes were observed in 30% of pts with PD. Grade 3/4 toxicities included: fatigue (8%), hyponatremia (8%), hypophosphatemia (8%) diarrhea (4%), thromboembolism (4%), transaminitis (4%), hypothyroidism (4%), thrombocytopenia (4%), dysphonia (4%), hypomagnesemia (4%), creatinine increase (4%) and proteinuria (4%). Conclusions: Cabozantinib has clinical activity in pts with relapsed or refractory mUC with manageable toxicities. Further studies are underway to correlate response to therapy with MET expression. Clinical trial information: NCT01688999.


2020 ◽  
Vol 38 (4_suppl) ◽  
pp. 101-101 ◽  
Author(s):  
Romain Cohen ◽  
Jaafar Bennouna ◽  
Julie Henriques ◽  
Christophe Tournigand ◽  
Christelle De La Fouchardiere ◽  
...  

101 Background: Immune checkpoint inhibitors (ICKi) are highly effective for MSI/dMMR mCRC pts. RECIST1.1 criteria are reported to underestimate response to ICKi. The GERCOR NIPICOL phase II study aimed to evaluate disease control rate (DCR) using RECIST1.1 and iRECIST for MSI/dMMR mCRC pts treated with nivolumab (NIVO) and ipilimumab (IPI). Methods: MSI/dMMR mCRC pts previously treated with fluoropyrimidines (FP), oxaliplatin (OX) and irinotecan (IRI) ± targeted therapies received NIVO 3 mg/kg + IPI 1 mg/kg Q3W for 4 cycles then NIVO 3 mg/kg Q2W until progression or a maximum of 20 cycles. CT-scan tumor assessments were done every 6 weeks during 24 weeks and then every 12 weeks. Primary objective was DCR at 12 weeks (12wDCR) according to RECIST1.1 and iRECIST by central review. Response rates and progression-free survival (PFS) by central review were secondary objectives. A one-stage Fleming design was used with a targeted improvement of 12wDCR from 70% to 85%. Results: Of 57 pts included between Dec 2017 and Nov 2018, 43.9% had received ≥ 3 prior lines including FP (100%), OX (100%), IRI (95.5%), antiangiogenics (57.9%) and anti-EGFRs (45.6%). 17.5% of pts had BRAF mutation and 27.5% Lynch syndrome. Grade 3-4 treatment-related adverse events were reported in 49.1% of pts, mainly hepatitis (12.3%). 12wDCR was 86.0% and 87.7% using RECIST1.1 and iRECIST respectively, with only 1 pseudo-progression (1.8%) observed during the first 12 weeks, and one later. Kappa coefficient between RECIST and iRECIST 12wDCR was 0.92 (95%CI 0.77-1.0). Best observed responses with RECIST1.1/iRECIST were: 2/2 complete responses (3.5/3.5%), 19/19 partial responses (33.3/33.3%), 30/31 stable diseases (52.6/54.4%) and 3/2 disease progressions (5.3/3.5%), with 3 pts not evaluable (cancer-related deaths before first evaluation). Conclusions: Combination of NIVO and IPI in MSI/dMMR mCRC is associated with a low frequency of pseudo-progression and high DCR rate. PFS will be evaluated in Dec 2019, with all pts having completed the predefined 1-year of ICKi therapy. Clinical trial information: NCT033501260.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Rahma Warsame ◽  
Betsy LaPlant ◽  
Shaji K. Kumar ◽  
Kristina Laumann ◽  
Gabriela Perez Burbano ◽  
...  

AbstractRarity of light-chain amyloidosis (AL) makes randomized studies challenging. We pooled three phase II studies of immunomodulatory drugs (IMiDs) to update survival, toxicity, and assess new response/progression criteria. Studies included were lenalidomide-dexamethasone (Len-Dex) (n = 37; years: 2004–2006), cyclophosphamide-Len-Dex (n = 35; years: 2007–2008), and pomalidomide-Dex (n = 29; years: 2008–2010) trial. Primary endpoint was hematologic response. Overall survival (OS) was calculated from registration to death and progression-free survival (PFS) was calculated from registration to progression or death. Hematologic, cardiac, and renal response/progression was assessed using the modern criteria. Analysis included 101 patients, with a median age of 65 years, 61% male, 37 newly diagnosed (ND), and 64 relapsed/refractory (RR). Median follow-up was 101 months (range 17–150) and 78% of patients died. OS and PFS for pooled cohort were 31 and 15 months, respectively. Forty-eight patients achieved a hematologic response; for ND, 10 patients (28%) achieved ≥VGPR (very good partial response) and 8 (14%) among the RR. Only cardiac stage was prognostic for OS. Common grade ≥3 toxicities were hematologic, fatigue, and rash, and were similar among studies. Hematologic and renal responses occurred more frequently and rapidly using modern response criteria; cardiac response was less frequent but occurred quickly. IMiDs can result in long progression-free intervals/survival with tolerable toxicities. The new response/progression criteria were rapid and allows for tailoring therapy.


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