scholarly journals Results of an Ongoing Phase 2 Study of Brentuximab Vedotin with Rchp As Frontline Therapy in Patients with High-Intermediate/High-Risk Diffuse Large B Cell Lymphoma (DLBCL)

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 104-104 ◽  
Author(s):  
Lihua E. Budde ◽  
Ahmad Halwani ◽  
Christopher A. Yasenchak ◽  
Charles Michael Farber ◽  
John M Burke ◽  
...  

Abstract Introduction DLBCL is the most common lymphoid neoplasm in adults (Swerdlow 2016). While durable CRs are achieved in approximately 70% of patients (pts) with frontline RCHOP therapy (Pfreundschuh 2008), pts with high-risk features often experience disease resistance or relapse. In Part 1 of an ongoing study, pts with high-intermediate or high risk DLBCL by international prognostic index (IPI) scores, regardless of CD30 expression by IHC, were treated with 1.2 or 1.8 mg/kg brentuximab vedotin (BV) combined with RCHOP. After 3 of the first 10 pts treated at 1.8 mg/kg BV+RCHOP developed Grade 3 peripheral neuropathy (per Standardized MedDRA Query [SMQ]), all pts enrolled subsequently received treatment with 1.2 mg/kg BV+RCHOP. Following completion of enrollment in Part 1, the protocol was amended to enroll a non-randomized portion of the study (Part 2) evaluating the safety and efficacy of 1.8 mg/kg BV+RCHP (Yasenchak 2015), followed by an open-label, randomized portion comparing BV+RCHP to RCHOP (Part 3). Initial results from Part 2 and updated results from Part 1 are reported here. Methods For Part 2 of the study, pts with CD30-expressing high-intermediate and high-risk DLBCL were treated with up to 6 cycles of 1.8 mg/kg BV+RCHP (NCT01925612). Key inclusion criteria were CD30 expression by IHC performed by a local pathology lab and standard IPI scores of 3-5 or age-adjusted IPI (aaIPI) scores of 2-3 (high-intermediate/high risk). CD30 expression was confirmed by a central pathology lab, although CD30 expression by local pathology lab was required for eligibility. Disease response was evaluated with PET/CT per Cheson 2007. Results At the time of analysis for this ongoing study, 11 pts in Part 2 were treated with BV+RCHP (7 male, 4 female; 22-78 yrs). Of these pts, 9 had high-intermediate risk (IPI 3, aaIPI 2) and 2 had high risk disease (IPI 4-5, aaIPI 3), 6 had Stage IV disease, and 6 had an ECOG score of 2. At the end of treatment, the overall response rate was 91% (9 CR, 1 PR); 1 pt had PD after Cycle 4. The most frequent (>20%) treatment-emergent adverse events (AEs) were alopecia and nausea (73% each); fatigue (64%); constipation and peripheral sensory neuropathy (55% each); neutropenia and throat irritation (36% each); and chills, diarrhea, headache, and stomatitis (27% each). Grade 3 or 4 AEs occurred in 8 pts and 5 pts had serious AEs, which included febrile neutropenia, bacteremia, nausea, pneumocystis jiroveci pneumonia, pulmonary embolism, and vomiting. Peripheral sensory neuropathy occurred in 6 pts and all were Grade 1 or 2 events; no peripheral motor neuropathy AEs were reported. No AEs were fatal or led to discontinuation. One pt discontinued treatment after Cycle 4 due to disease progression. For the first 51 pts in Part 1, the progression-free survival (PFS) at 18 months for pts with CD30 expression (25 pts) or without detectable CD30 expression (24 pts) by IHC was 79% (95% CI: 57%, 91%) versus 58% (95% CI: 36%, 75%), respectively. Overall survival for pts was 92% (95% CI: 71%, 98%) versus 71% (95% CI: 48%, 85%), respectively. Ten pts had pre-existing peripheral neuropathy (per SMQ) at study entry. Treatment-emergent peripheral neuropathy (per SMQ) was observed in 75% of pts (38/51) who received BV+RCHOP; 55% of these pts (21/38) had resolution of all or some peripheral neuropathy events. Conclusions 1.8 mg/kg BV+RCHP is active as frontline treatment in CD30-expressing, high-intermediate/high risk DLBCL. When combined with RCHP, 1.8 mg/kg BV appears to be well-tolerated. The PFS and OS for pts with CD30-expression who received BV+RCHOP appear promising. The study is currently ongoing in pts with CD30-expressing high-intermediate/high risk DLBCL to assess the safety and activity of 1.8 mg/kg BV+RCHP versus standard RCHOP. Disclosures Halwani: Bristol Myers-Squibb: Research Funding; Kyowa Hakko Kirin: Research Funding; Takeda: Research Funding; Genentech: Research Funding; AbbVie: Consultancy, Other: Travel Expenses, Research Funding; Seattle Genetics: Consultancy, Research Funding; Immune Design: Research Funding; Miragen: Research Funding; Pharmacyclics: Consultancy; Amgen: Research Funding. Yasenchak:Seattle Genetics: Research Funding. Farber:Seattle Genetics: Research Funding. Burke:Pfizer: Consultancy; Janssen: Consultancy; Incyte: Consultancy; TG Therapeutics: Other: Travel Expenses; Millenium: Consultancy. Fayad:Seattle Genetics: Consultancy, Research Funding. Holkova:Seattle Genetics: Research Funding. Knapp:Insys Therapeutics, Inc.: Consultancy, Other: Travel, Accommodations, Expenses; Pharmacyclics, LLC, an AbbVie Company: Consultancy, Other: Travel, Accommodations, Expenses, Research Funding. Kolibaba:Gilead: Consultancy, Research Funding; Celgene: Research Funding; TG Therapeutics: Research Funding; Takeda Pharmaceuticals International Co.: Research Funding; Seattle Genetics: Research Funding; Pharmacyclics: Research Funding; janssen: Research Funding; GSK: Research Funding; Genentech: Research Funding; Acerta: Research Funding. Patel-Donnelly:Seattle Genetics: Research Funding. Yimer:Ariad Pharmaceuticals: Consultancy; Biotheranostics: Consultancy; Bluebird Bio: Equity Ownership; Kite Pharma: Equity Ownership; Clovis Oncology: Equity Ownership; Juno Therpeutics: Equity Ownership; Seattle Genetics: Research Funding. Smith:Celgene: Consultancy, Speakers Bureau; Seattle Genetics: Research Funding. Levy:Janssen: Speakers Bureau; Amgen: Speakers Bureau; Takeda Pharmaceuticals International Co.: Speakers Bureau; Seattle Genetics: Research Funding; Actinium Pharmaceuticals, Inc.: Research Funding. Seetharam:Seattle Genetics: Research Funding. Belada:Seattle Genetics: Research Funding. Brooks:Seattle Genetics: Research Funding. Kingsley:Gilead: Equity Ownership; Pharmacyclics LLC, an AbbVie Company: Equity Ownership. Wagner-Johnston:Seattle Genetics: Research Funding. Ruffner:Forma Therapeutics: Consultancy; Sydnax: Consultancy; Seattle Genetics: Employment, Equity Ownership; Array Biopharma: Employment; Medivation: Employment. Bartlett:Gilead: Consultancy.

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 5-6
Author(s):  
Patrick M. Reagan ◽  
Craig A. Portell ◽  
Carla Casulo ◽  
Andrea M. Baran ◽  
Allison Magnuson ◽  
...  

Older patients with hematologic malignancies are underrepresented on prospective clinical trials relative to the incidence of disease in this group (Kanapuru et al, 2020). There are few studies in diffuse large B-cell lymphoma (DLBCL) focused specifically on older patients. Rituximab and dose attenuated cyclophosphamide, doxorubicin, vincristine, and prednisone (R-miniCHOP) has been studied on a prospective trial in fit patients aged 80 years and older. Seventy-two percent of patients on this study completed 6 cycles of R-miniCHOP. The overall response rate (ORR) was 73%, and the 2-year progression free survival (PFS) was 47% (Peyrade et al, 2011). Novel regimens are needed to improve upon the efficacy of therapy while preserving tolerability. Brentuximab vedotin (BV) has demonstrated activity in relapsed and refractory DLBCL (Jacobsen et al, 2015) as well as in combination with chemoimmunotherapy (Svoboda, 2020). This study evaluates the feasibility of BV with dose attenuated chemoimmunotherapy. Methods: Patients with both CD30 positive (cut off 1%) and CD30 negative DLBCL aged 75 years and older were enrolled on the study. Patients received six, 3-week cycles of BV 1.8 mg/kg, cyclophosphamide 400 mg/m2, doxorubicin 25 mg/m2, vincristine 1 mg and prednisone 40 mg/m2 days 1-5 (BV R-miniCHP). For the first cycle patients received BV and prednisone as a prephase starting one week prior to cycle 1. All patients received pegfilgrastim. All patients underwent geriatric assessments at screening, following prephase and at the end of treatment. The primary endpoint was feasibility of this regimen in older patients. The regimen was considered feasible if 71% of patients completed 6 cycles of treatment with a 90% confidence interval (CI)=(58.0, 90.6%). Secondary endpoints included toxicity, ORR and complete response (CR) evaluated by positron emission tomography, PFS and overall survival (OS). Response assessments used the Lugano Criteria (Cheson et al, 2014). PFS and OS were estimated using the Kaplan-Meier method. Results: Twenty-two patients were enrolled and started prephase with BV and prednisone. Their baseline characteristics are summarized in the table. Seventy-seven percent (17/22) of patients completed 6 cycles of BV R-miniCHP. Reasons for not completing treatment included progressive disease in 2 patients, myocardial infarction, fatigue, and an unrelated injury in 1 patient each. Twenty-one patients were evaluable for response. ORR was 86% (18/21) in all patients, with 67% (14/21) achieving CR. In CD30 positive patients the ORR was 80% (8/10) and the CR rate was 70% (7/10). In CD30 negative patients the ORR was 91% (10/11) and the CR rate was 64% (7/11). With a median follow up of 23 months, median OS and PFS (figure) were not reached. The 2-year PFS was 60.6%, 90% CI=(40.0%, 76.1%), and the 2-year OS was 73.9%, 90% CI=(52.4%, 86.8%). The most common adverse events (AEs) were fatigue (82%), anemia (50%), diarrhea (50%), dysgeusia (45%) and peripheral sensory neuropathy (45%). Grade ≥3 AEs seen in more than 2 patients included neutropenia (23%), fatigue (18%), pneumonia (18%), hypoxia (14%), thrombocytopenia (9%) and thromboembolism (9%). Grade ≥3 peripheral sensory neuropathy was seen in 9% of patients. There were two deaths in patients receiving study treatment. These included a myocardial infarction related to treatment, and a bowel obstruction secondary to disease progression. Three other patients have died in follow up with 2 secondary to disease progression and 1 due to an unrelated event. Conclusions: The study met its primary feasibility endpoint with 77% of patients completing 6 cycles of therapy. This regimen was delivered safely in this population and toxicities were consistent with those reported in larger prospective studies with R-miniCHOP or ofatumumab and miniCHOP (Peyrade et al, 2011; Peyrade et al 2017). Peripheral neuropathy is a key AE of interest given the inclusion of BV and while nearly half of patients experienced some peripheral neuropathy, it was severe in only 9% of pts. The ORR and CR rate, as well as the 2-year PFS compare favorably to other prospective studies in a population that included patients with high clinical risk, histologic transformation, and double hit lymphoma. BV and R-miniCHP may be a feasible regimen in older patients, and warrants further study based on these preliminary data demonstrating clinical activity and tolerability. Figure 1 Disclosures Reagan: Seattle Genetics: Research Funding; Curis: Consultancy; Kite, a Gilead Company: Consultancy. Portell:Xencor: Research Funding; Roche/Genentech: Consultancy, Research Funding; Infinity: Research Funding; TG Therapeutics: Research Funding; AbbVie: Research Funding; Pharmacyclics: Consultancy; Janssen: Consultancy; Amgen: Consultancy; Bayer: Consultancy; BeiGene: Consultancy, Research Funding; Kite: Consultancy, Research Funding; Acerta/AstraZeneca: Research Funding. Barr:Gilead: Consultancy; Verastem: Consultancy; Abbvie/Pharmacyclics: Consultancy, Research Funding; Genentech: Consultancy; AstraZeneca: Consultancy, Research Funding; Janssen: Consultancy; Seattle Genetics: Consultancy; Celgene: Consultancy; Morphosys: Consultancy; TG therapeutics: Consultancy, Research Funding; Merck: Consultancy. Friedberg:Acerta Pharma - A member of the AstraZeneca Group, Bayer HealthCare Pharmaceuticals.: Other; Roche: Other: Travel expenses; Kite Pharmaceuticals: Research Funding; Seattle Genetics: Research Funding; Portola Pharmaceuticals: Consultancy; Astellas: Consultancy; Bayer: Consultancy.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 4400-4400 ◽  
Author(s):  
Maria Corinna Palanca-Wessels ◽  
Gilles Andre Salles ◽  
Myron S. Czuczman ◽  
Sarit E. Assouline ◽  
Ian W. Flinn ◽  
...  

Abstract Background DCDS4501A (DCDS), an anti-CD79b monoclonal antibody (Ab), is conjugated to the anti-mitotic agent MMAE. We previously determined a recommended Phase II dose (RP2D) of 2.4 mg/kg every 21 days (q21d), and clinical activity in R/R B-cell NHL at doses ≥ 1.8 mg/kg (Palanca-Wessels et al. ASH 2012). Here we update results from patients (pts) treated at 1.8 mg/kg and from the 2.4 mg/kg expansion cohort. Methods We evaluated ongoing safety, tolerability, pharmacokinetics (PK) and activity of DCDS with or without rituximab (RTX) at 375 mg/m2 q21d in pts with R/R DLBCL and indolent (i)NHL. Results Sixty pts were treated with DCDS (6 at 1.8 mg/kg, 45 at 2.4 mg/kg) and DCDS+RTX (9, DCDS at 2.4 mg/kg). Median age 68 yrs (range 20-86); 82% ECOG PS<2; median 4 prior regimens (range 1-14); 97% had prior RTX; 28% had prior autologous stem cell transplant. The DCDS+RTX safety profile did not differ from DCDS monotherapy. Patients received a median of 7 cycles (range 1-20) of DCDS and 10 cycles (range 1-17) of DCDS + RTX; 18 patients continue to receive study treatment. Treatment-emergent adverse events (TEAEs) included neutropenia (50%), diarrhea (45%), nausea (40%), pyrexia (38%), peripheral neuropathy (25%), peripheral sensory neuropathy (20%), and hypokalemia (20%). Grade ≥ 3 AEs in ≥5% of pts included neutropenia (43%), anemia (13%), thrombocytopenia (7%), hyperglycemia (7%), fatigue (5%) and diarrhea (5%). Grade ≥ 3 infection was reported in 8 (13%) pts. Twenty-two (37%) pts reported a serious AE. TEAEs related to peripheral neuropathy (PN) were reported in 32 (53%) pts with median time to first onset of 63 days. 22/32 pts (69%) had worsening PN with median time to worsening of 49 days. Grade ≥ 3 peripheral neuropathy/peripheral sensory neuropathy/peripheral motor neuropathy was reported in 5 (8%) patients. PN was managed with dose delays and dose reductions resulting in complete reversal in 7 (22%) pts. Treatment discontinuations for AEs were reported in 25 (42%) pts including 17 for PN. Seven pts (12%) had ≥ 1 dose reduction including 3 for PN and 2 for neutropenia. Twenty-six patients (43%) had ≥ 1 dose delay including 14 for neutropenia and 6 for PN. Six deaths were reported within 60 days of last study treatment assessed as unrelated to DCDS. Exposure of Ab-conjugated (ac) MMAE, total Ab, and unconjugated MMAE increased with dose. Maximal concentrations of unconjugated MMAE were >100-fold lower than acMMAE with an average Cycle 1 value of 5-9 ng/mL at the 2.4 mg/kg ADC dose level. Moderate accumulation of acMMAE and total Ab on the q21d dosing schedule was observed with no accumulation of free MMAE. Overall objective responses were observed in 27/51 (53%) DCDS and 7/9 (78%) DCDS+RTX pts. Objective (OR) and complete responses (CR) by histology were as follows: The median PFS for DLBCL patients treated with DCDS or DCDS + RTX was 149 days. The median PFS for iNHL patients treated with DCDS or DCDS + RTX was 241 days. Conclusions DCDS and DCDS+RTX were generally well-tolerated. Neutropenia and PN were the principal toxicities. PN was reversible in some patients with dose delays and reductions. Encouraging anti-tumor activity was observed in heavily pretreated pts with R/R NHL. Updated results from this Phase I study will be presented. An ongoing randomized Phase II study of DCDS+RTX versus a CD22-directed ADC (DCDT2980S) with the same linker-cytotoxic agent in patients with R/R DLBCL and follicular lymphoma will further assess the efficacy of DCDS in the treatment of NHL. Additional studies of DCDS combined with immunochemotherapy are being planned. Disclosures: Palanca-Wessels: Genentech, inc.: Research Funding. Off Label Use: anti-CD79b Antibody-Drug Conjugate in r/r B-cell NHL. Salles:Genentech, inc.: Consultancy. Czuczman:Genentech, inc.: Consultancy, Honoraria. Flinn:Genentech, inc.: Research Funding. Sehn:Genentech, inc.: Consultancy, Honoraria, Research Funding. Tilly:Genentech, inc.: Honoraria. Advani:Genentech, inc.: Research Funding. Casasnovas:Genentech, inc.: Research Funding. Press:Genentech, inc.: Consultancy, Research Funding. Yalamanchili:Genentech, inc.: Employment. Kahn:Genentech, inc.: Employment. Lu:Genentech, inc.: Employment. Chai:Genentech, inc.: Employment. Chu:Genentech, inc.: Employment. Morschhauser:Genentech, inc.: Honoraria, Research Funding.


Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 961-961 ◽  
Author(s):  
Andrei R. Shustov ◽  
Ranjana Advani ◽  
Pauline Brice ◽  
Nancy L. Bartlett ◽  
Joseph D. Rosenblatt ◽  
...  

Abstract Abstract 961 Background: Systemic anaplastic large cell lymphoma (sALCL) is a CD30-expressing malignancy comprising approximately 2–3% of all cases of non-Hodgkin lymphoma. The antibody-drug conjugate (ADC) brentuximab vedotin (SGN-35) delivers the highly potent antimicrotubule agent monomethyl auristatin E (MMAE) to CD30-positive malignant cells by binding specifically to CD30 on the cell surface and releasing MMAE inside the cell via lysosomal degradation. Binding of MMAE to tubulin disrupts the microtubule network within the cell, induces cell cycle arrest, and results in apoptotic death of the CD30-expressing tumor cell. In phase 1 studies, brentuximab vedotin demonstrated good tolerability and notable antitumor activity in patients with relapsed or refractory sALCL: 6 of 7 treated patients achieved complete remissions (CR). Methods: A phase 2, single-arm, multicenter study was conducted to evaluate the efficacy and safety of brentuximab vedotin in patients with relapsed or refractory sALCL. Brentuximab vedotin 1.8 mg/kg was administered every 3 weeks as a 30-minute outpatient IV infusion for up to 16 cycles of treatment. Determination of antitumor efficacy was based on objective response assessments according to the Revised Response Criteria for Malignant Lymphoma (Cheson 2007). Results: A total of 58 patients were treated in this study; interim data are presented for the first 30 treated patients. 53% of patients were female and median age was 55 years (range 14–71). The majority of patients had ALK-1 negative tumor (70%, or n=21) and 4 patients (13%) had bone marrow involvement at baseline. The median number of prior chemotherapy regimens was 2 (range 1–6) and 8 patients (27%) had failed previous autologous hematopoietic stem cell transplant (SCT). 19 patients (63%) had primary refractory disease, and 16 patients (53%) had not responded to the most recent prior therapy. The objective response rate (ORR) by investigator assessment was 87%; 57% of patients achieved a CR (n=17) and 30% of patients achieved a partial remission (PR; n=9). The remaining patients had stable disease (n=3) or were not evaluable for response (n=1). Similar proportions of ALK-1 negative and ALK-1 positive patients achieved CR and PR. Reduction in tumor burden was observed in 97% of patients. The median time to objective response was 6 weeks (range 5–12) and the duration of objective responses currently range from 4–36 weeks, with responses ongoing in 18 patients. B symptoms resolved in 9 of 10 patients (90%) who had these symptoms at baseline. After achieving a CR with brentuximab vedotin, 10 patients (33%) went on to receive an autologous or allogeneic SCT. The most common (>20%) adverse events (AEs) of any grade were nausea (47%), diarrhea (40%), peripheral sensory neuropathy (40%), pyrexia (33%), dyspnea (30%), fatigue (27%), insomnia (23%), and neutropenia (23%). Grade 3/4 AEs considered related to brentuximab vedotin observed in >1 patient were neutropenia (17%), peripheral sensory neuropathy (13%), diarrhea (7%), and anemia (7%); no treatment-related Grade 5 events were observed. 7 patients (23%) discontinued treatment due to an AE. Conclusion: In this interim analysis of 30 patients with relapsed or refractory sALCL, the investigator-assessed ORR was 87% and the CR rate was 57%. Brentuximab vedotin treatment was associated with manageable AEs; the most common in the study were nausea, diarrhea, and peripheral sensory neuropathy. The rate of complete remissions observed thus far in this study with single-agent treatment suggests that brentuximab vedotin has potential for the treatment of sALCL. Results of the independent assessment of response for all patients, duration of response, progression-free survival, and updated safety data will be presented at the meeting. Disclosures: Shustov: Seattle Genetics, Inc.: Research Funding, Steering Committee member. Off Label Use: The clinical trial uses an investigational drug, brentuximab vedotin (SGN-35). Advani:Seattle Genetics, Inc.: Research Funding. Brice:Seattle Genetics, Inc.: Research Funding. Bartlett:Seattle Genetics, Inc.: Research Funding. Rosenblatt:Seattle Genetics, Inc.: Research Funding. Illidge:Seattle Genetics, Inc.: Research Funding; Roche: Consultancy; Biogen Idec: Consultancy; Amgen: Consultancy. Matous:Seattle Genetics, Inc.: Research Funding; Celgene: Honoraria, Speakers Bureau; Millennium: Speakers Bureau; Cephalon: Speakers Bureau. Ramchandren:Seattle Genetics, Inc.: Research Funding. Fanale:Seattle Genetics, Inc.: Research Funding. Connors:Seattle Genetics, Inc.: Research Funding. Yang:Seattle Genetics, Inc.: Employment. Sievers:Seattle Genetics, Inc.: Employment, Equity Ownership. Kennedy:Seattle Genetics, Inc.: Employment, Equity Ownership. Pro:Seattle Genetics, Inc.: Membership on an entity's Board of Directors or advisory committees, Research Funding.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 585-585 ◽  
Author(s):  
Catherine S. Diefenbach ◽  
Fangxin Hong ◽  
Jonathon B. Cohen ◽  
Michael J. Robertson ◽  
Richard F. Ambinder ◽  
...  

Abstract Background: Despite advances in chemotherapy, R/R HL remains a significant clinical problem with over 1,000 primarily young lives lost annually. HL is a unique tumor in which a small number of malignant Hodgkin Reed-Sternberg (HRS) cells propagate an immunosuppressive microenvironment that augments HRS growth and survival. We hypothesized that immune checkpoint inhibitor therapy could activate the tumor immune microenvironment, while the CD30 expressing HRS cells could be targeted by brentuximab vedotin (BV), thereby overcoming tumor cell resistance and deepening clinical responses. E4412 is a phase 1 ECOG-ACRIN sponsored study of the combination of BV and the checkpoint inhibitors ipilimumab (IPI) and nivolumab (NIVO) in patients with relapsed/refractory (R/R) Hodgkin lymphoma (HL). Here we report the data on the patients treated with BV + IPI, the first cohort of the study. Methods: Patients with biopsy proven R/R HL were treated with BV 1.8mg/kg and two escalating doses of IPI: 1 mg/kg or 3mg/kg. After safety was determined an expanded cohort was treated with BV 1.8mg/kg IV and IPI 3mg/kg IV. The schedule consisted of BV administered every 21 days for 16 cycles and IPI every 21 days x 4 doses and thereafter every 3 months for up to a year. Dose limiting toxicity (DLT) was defined for purposes of dose escalation within the first cycle of therapy. Patients are followed for toxicity up to 30 days beyond their last treatment. Results: As of 7/2015 19 of 23 planned patients have been treated with BV + IPI. We report the data on the full dose escalation population (13 patients: Dose level 1 (6), Dose level 2 (7)). The median age was 33 years (range: 20-49). Seven patients were male. Patients were heavily pretreated with a median of 4 prior therapies (2-13). Fourpatients had prior treatment with BV; 8 patients had prior SCT (7 autologous, 1 allogeneic). Safety: Overall the regimen of BV + IPI was extremely well tolerated with no DLTs noted during dose escalation. Toxicities considered at least possibly related to drug during any cycle of treatment are shown according to grade in Table 1. The most common treatment related adverse events were: diarrhea, rash, and peripheral sensory neuropathy. Other AEs of interest included: alopecia, transaminitis, and uveitis. Grade 3 and 4 treatment related adverse events (AEs) included: Dose level 1: one grade 3 infusion reaction, which led to a protocol amendment to include premedication, no further grade 3 infusion reactions were noted; Dose level 2: one each: grade 3 rash, vomiting, and peripheral sensory neuropathy, and one grade 4 thrombocytopenia in patient with pre-existing thrombocytopenia. Response: For the 12 evaluable patients, the overall response (ORR) for the combination of BV + IPI was 67% with a complete response (CR) rate of 42% (5 of 12 patients). An additional 2 patients had stable disease (SD) giving a clinical benefit rate of 83%. Three of 5 of the CRs occurred at dose level 1 (1mg dose of IPI). The median progression free survival (PFS) is 0.74 years with a median follow-up of 0.66 years. Conclusion: In this first reported study of the combination of checkpoint inhibitor and ADC, toxicity was low, primarily grades 1 and 2. In a heavily pretreated patient population, 33% of whom had had prior BV and 67% of whom were s/p ASCT, the ORR of 67% and CR rate of 42% suggests a potential deepening of response compared to monotherapy. More than half of these CRs occurred at 1mg of IPI suggesting that in combination with ADC, low doses of immune stimulation may be highly active. Optimization of this combination strategy is planned with ongoing accrual to cohorts receiving BV + NIVO, and BV + IPI + NIVO. Data will be updated to include the full BV + IPI cohort by the time of the annual meeting. Table 1. Common and Immune Toxicities Toxicity Type Dose Level 1 (n=6) Dose Level 2 (n=7) Grade Grade 1,2 3 4 5 1,2 3 4 5 (n) (n) (n) (n) (n) (n) (n) (n) Fatigue 5 - - - 3 - - - Fever 1 - - - 3 - - - Pain 2 - - - 3 - - - Alopecia 2 - - - 1 - - - Pruritus 1 - - - 2 - - - Rash maculo-papular 4 - - - 2 1 - - Diarrhea 4 - - - 4 - - - Dyspepsia 2 - - - 1 - - - Nausea 6 - - - 4 - - - Vomiting 3 - - - 2 1 - - Papulopustular rash 1 - - - 1 - - - Alanine aminotransferase increased 3 - - - 3 - - - Aspartate aminotransferase increased 3 - - - 2 - - - Platelet count decreased - - - - - - 1 - Anorexia 3 - - - - - - - Headache 2 - - - 2 - - - Peripheral sensory neuropathy 5 - - - 4 1 - - Dry eye 2 - - - - - - - Uveitis 1 - - - - - - - Cough 2 - - - 1 - - - Disclosures Diefenbach: Molecular Templates: Research Funding; Immunogen: Consultancy; Celgene: Consultancy; Idera: Consultancy; Jannsen Oncology: Consultancy; Gilead: Equity Ownership, Research Funding, Speakers Bureau; Incyte: Research Funding; Genentech: Research Funding; Seattle Genetics: Consultancy, Honoraria, Research Funding. Off Label Use: Presentation will discuss the experimental use of the checkpoint inhibitor Ipilimumab in relapsed/refractory Hodgkin lymphoma.. Cohen:Celgene: Consultancy; Millennium: Consultancy; Pharmacyclics: Consultancy; Seattle Genetics: Consultancy; BMS: Research Funding; Janssen: Research Funding. Robertson:Eli Lilly: Equity Ownership. Fenske:Pharmacyclics: Honoraria; Seattle Genetics: Honoraria; Millennium/Takeda: Research Funding; Celgene: Honoraria. Kahl:Roche/Genentech: Consultancy; Seattle Genetics: Consultancy; Millennium: Consultancy; Cell Therapeutics: Consultancy; Celgene: Consultancy; Infinity: Consultancy; Pharmacyclics: Consultancy; Juno: Consultancy. Ansell:Bristol-Myers Squibb: Research Funding; Celldex: Research Funding.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 4382-4382 ◽  
Author(s):  
Ajay K. Gopal ◽  
Robert Chen ◽  
Scott E. Smith ◽  
Stephen M Ansell ◽  
Joseph D Rosenblatt ◽  
...  

Abstract Background Hodgkin lymphoma (HL) is characterized by the presence of CD30-positive Hodgkin Reed-Sternberg cells. The standard of care for patients (pts) with relapsed or refractory HL is salvage chemotherapy followed by autologous stem cell transplant (auto-SCT). However, approximately 50% of pts experience relapse of HL after auto-SCT and this population represents a pronounced unmet need. In a 756-pt retrospective analysis, the median overall survival (OS) in HL pts who relapsed after auto-SCT was 2.4 years, as measured from the time of auto-SCT, with shorter time to relapse after auto-SCT being the most predictive factor for shortened survival (Arai 2013). Brentuximab vedotin (ADCETRIS®) comprises an anti-CD30 antibody conjugated by a protease-cleavable linker to monomethyl auristatin E (MMAE), a microtubule-disrupting agent. A pivotal phase 2 study was conducted to determine the efficacy and safety of brentuximab vedotin in 102 pts with relapsed or refractory HL after auto-SCT (ClinicalTrials.gov #NCT00848926). Data representing approximately 3 years of follow up from this ongoing trial are described, including characterization of patients who experienced long-term remissions. Methods Pts received 1.8 mg/kg brentuximab vedotin every 3 weeks as a 30-minute outpatient IV infusion for up to 16 cycles. The primary endpoint was the objective response rate (ORR) per independent review according to the Revised Response Criteria for Malignant Lymphoma (Cheson 2007). Long-term follow-up assessments to determine survival and disease status occurred every 3 months (mos) for 2 years, every 6 mos during years 3 to 5, and annually thereafter. Results In this high-risk population with poor prognosis, the median time to relapse after auto-SCT was 6.7 mos (range, 0–131 mos). Pts received a median of 9 cycles of brentuximab vedotin and the ORR was 75% (76 of 102 pts), with complete remissions (CRs) in 33% of pts (n=34). As previously reported, the most common (≥15%) brentuximab vedotin-related adverse events of any grade were peripheral sensory neuropathy, nausea, fatigue, neutropenia, and diarrhea. Adverse events of Grade 3 or higher that occurred in ≥5% of pts were neutropenia, peripheral sensory neuropathy, thrombocytopenia, and anemia. At the time of this analysis (May 2013), the median observation time from first dose was 32.7 mos (range, 1.8 to 48.3 mos). Of the 102 pts enrolled, 51 (50%) were alive at the time of last follow up. The median OS was 40.5 mos (95% CI: 28.7, – [range, 1.8 to 48.3+ mos]) and the estimated 36-mo survival rate was 54% (95% CI: 44%, 64%). Median OS by best clinical response was CR (n=34): median not yet reached; partial remission (PR, n=42): 31.6 mos; stable disease (SD, n=22): 20.6 mos; and progressive disease (PD, n=3): 10.2 mos. Of the 51 pts who were alive at the time of this analysis, 14 remain in remission and have not started a new anti-cancer therapy other than 5 pts who received consolidative allo-SCT following brentuximab vedotin. Demographics/baseline characteristics of these 14 pts show that the majority are female (10/14; 71%) and white (12/14; 86%), with a median age of 26.5 years (range, 15–54). Eleven of the 14 pts had CRs and 3 had PRs following brentuximab vedotin; all 3 of the pts with PRs received subsequent allo-SCT. The observation time for the 14 pts who remain in remission ranges from 31.5 mos to 44.4 mos and their progression-free survival ranges from 27.2+ mos to 44.4+ mos. Additional characterization of the pts who achieved long-term remissions following brentuximab vedotin will be presented at the meeting. Conclusions After a median observation time of approximately 3 years from first dose of brentuximab vedotin, 50% of pts with relapsed or refractory HL were alive at the time of last follow up. The median OS was 40.5 mos. Fourteen patients remain in follow up with no evidence of lymphoma progression, providing early suggestion that a fraction of these patients may be cured. A randomized phase 3 study is being conducted to evaluate brentuximab vedotin in combination with AVD (doxorubicin, vinblastine, and dacarbazine) versus ABVD (doxorubicin, bleomycin, vinblastine, and dacarbazine) for frontline treatment of HL (ClinicalTrials.gov #NCT01712490). Disclosures: Gopal: Biogen, Idec: Research Funding; Merck: Research Funding; BioMarin: Research Funding; Gilead: Research Funding; Emergent/Abbott: Research Funding; Pfizer: Research Funding; Cephalon/Teva: Research Funding; Janssen: Research Funding; Millennium: Honoraria, Research Funding; Sanofi-Aventis: Consultancy, Honoraria; Seattle Genetics, Inc.: Consultancy, Honoraria, Research Funding; Piramal: Research Funding; Spectrum: Research Funding. Chen:Seattle Genetics, Inc.: Consultancy, Research Funding, Speakers Bureau, Trave expenses Other. Smith:Seattle Genetics, Inc.: Research Funding; Spectrum: Consultancy; Cephalon: Consultancy, Speakers Bureau; Celgene: Consultancy, Speakers Bureau; GlaxoSmith Kline: Speakers Bureau. Ansell:Seattle Genetics, Inc.: Research Funding. Rosenblatt:Seattle Genetics, Inc.: Research Funding; University of Miami: Employment. Savage:Seattle Genetics, Inc.: Consultancy, Honoraria, Research Funding. Connors:F Hoffmann-La Roche: Research Funding; Roche Canada: Research Funding. Engert:Seattle Genetics, Inc.: Honoraria, Research Funding; Millennium: Honoraria, Research Funding; Takeda: Honoraria. Larsen:Seattle Genetics, Inc.: Employment, Equity Ownership. Huebner:Takeda Cambridge US: Employment; Takeda: Equity Ownership. Sievers:Seattle Genetics, Inc.: Employment, Equity Ownership. Younes:Seattle Genetics, Inc.: Advisory/Scientific Board Membership Other, Honoraria, Research Funding; Sanofi-Aventis: Honoraria; Novartis: Honoraria; Celgene: Honoraria; Incyte: Honoraria; Millennium: Honoraria; Pharmacyclics: Honoraria; Curis: Honoraria; Genentech: Research Funding; Gilead: Research Funding; Johnson and Johnson: Research Funding; Infinity: Research Funding.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 2736-2736 ◽  
Author(s):  
Robert Chen ◽  
Ajay K. Gopal ◽  
Scott E. Smith ◽  
Stephen Ansell ◽  
Joseph D. Rosenblatt ◽  
...  

Abstract Background: Classical Hodgkin lymphoma (HL) is characterized by the presence of CD30-positive Hodgkin Reed-Sternberg cells. The standard of care for patients (pts) with relapsed or refractory (R/R) HL is salvage chemotherapy followed by high dose chemotherapy and autologous stem cell transplant (auto-SCT). Approximately 50% of these pts will experience relapse or progression of HL after auto-SCT. For these individuals, outcomes have historically been poor, with median overall survival (OS) from time of relapse ranging from 10.5 to 27.6 mos (Crump, 2008; Fanale, 2013). A pivotal phase 2 study evaluated brentuximab vedotin, a CD30-directed antibody-drug conjugate, in pts with R/R HL after auto-SCT (ClinicalTrials.gov #NCT00848926). Primary results and 3-year follow-up data have been previously reported (Younes, 2012; Gopal, 2015). Here, we summarize final data from the 5-year follow-up period. Methods: Pts received 1.8 mg/kg brentuximab vedotin once every 3 wks as a 30-min outpatient IV infusion for up to 16 cycles. The primary endpoint was the objective response rate (ORR) per independent review according to the Revised Response Criteria for Malignant Lymphoma (Cheson 2007). Assessments of response and durability of response per an independent review facility (IRF) have been previously reported. Following a protocol amendment that removed the requirement for routine CT scanning during the follow-up period, disease status was only assessed per the investigator. Survival and disease status were assessed every 3 mos for 2 yrs and then every 6 mos through Year 5. CT scans were required if progression was suspected clinically. At the time of the amendment, 18 patients were still being assessed for progression; these patients had been in long-term follow-up for a median of over 30 months. Results: The enrolled population of 102 pts (53% female) was heavily pretreated and had a median age of 31 yrs (range, 15-77 yrs). Pts received a median of 9 cycles (range, 1-16) of brentuximab vedotin. Per investigator, the ORR to brentuximab vedotin was 72% and complete remission (CR) rate was 33%. The most common treatment-related adverse events were peripheral sensory neuropathy, nausea, fatigue, neutropenia, and diarrhea. Adverse events of Grade 3 or higher that occurred in ≥5% of pts were neutropenia, peripheral sensory neuropathy, thrombocytopenia, and anemia. At study closure, which occurred approximately 5 yrs after the last patient's end-of-treatment visit, the median observation time for all enrolled patients from first dose was 35.1 mos (range, 1.8 to 72.9). The estimated 5-year overall survival rate was 41% (95% CI: 31 %, 51%) and the median OS was 40.5 mos (95% CI: 28.7, 61.9 [range, 1.8 to 72.9+]). Median OS by best clinical response was CR (n=34): median not reached; partial remission (PR, n=39): 39.4 mos; and stable disease (SD, n=28): 18.3 mos. The median PFS was 9.3 months overall, but was not reached in CR pts. Of the 102 enrolled patients, 15 remained in follow-up and in remission at study closure. Among these 15 pts, 6 received consolidative allo-SCT and 9 have received no further therapy since completing brentuximab vedotin. Conclusions: These end-of-study results demonstrate that single agent brentuximab vedotin can induce durable remissions and long-term survival in a subset of heavily pretreated patients with relapsed/refractory HL, particularly in pts that achieve CR. A randomized phase 3 study is being conducted to evaluate brentuximab vedotin in combination with AVD (doxorubicin, vinblastine, and dacarbazine) versus ABVD (A, bleomycin, VD) for frontline treatment of advanced HL (ECHELON-1 trial, ClinicalTrials.gov #NCT01712490). Figure 1. Overall Survival Figure 1. Overall Survival Disclosures Chen: Seattle Genetics: Consultancy, Research Funding; Genentech: Consultancy; Gilead: Consultancy; Janssen: Consultancy. Gopal:BMS: Research Funding; Piramal: Research Funding; Emergent/Abbott: Research Funding; Millenium: Honoraria, Research Funding; Janssen: Consultancy; Spectrum: Consultancy, Research Funding; BioMarin: Research Funding; Seattle Genetics: Consultancy, Honoraria; Gilead: Consultancy, Research Funding; Pfizer: Consultancy, Research Funding; Sanofi-Aventis: Honoraria; Merck: Research Funding. Smith:Seattle Genetics: Research Funding; Celgene: Consultancy, Speakers Bureau. Ansell:Bristol-Myers Squibb: Research Funding; Celldex: Research Funding. Rosenblatt:Seattle Genetics: Research Funding. Savage:Seattle Genetics: Honoraria, Speakers Bureau; BMS: Honoraria; Infinity: Honoraria; Roche: Other: Institutional research funding. Connors:Roche: Research Funding; Seattle Genetics: Research Funding. Engert:Takeda Millenium: Honoraria, Research Funding; Seattle Genetics: Honoraria, Research Funding. Larsen:Seattle Genetics Inc.: Employment, Equity Ownership. Huebner:Takeda Pharmaceuticals International Co.: Employment, Equity Ownership. Fong:Seattle Genetics, Inc.: Employment, Equity Ownership. Younes:Janssen: Honoraria; Novartis: Research Funding; Incyte: Honoraria; Takeda Millenium: Honoraria; Celgene: Honoraria; Bristol Meyer Squibb: Honoraria; Curis: Research Funding; Bayer: Honoraria; Seattle Genetics: Honoraria, Research Funding; Sanofi-Aventis: Honoraria; Johnson and Johnson: Research Funding.


Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 3091-3091 ◽  
Author(s):  
Tim Illidge ◽  
Reda Bouabdallah ◽  
Robert W. Chen ◽  
Ajay K. Gopal ◽  
Craig H. Moskowitz ◽  
...  

Abstract Abstract 3091 Background: Allogeneic stem cell transplant (allo-SCT) for relapsed or refractory lymphoma is often limited by the amount of residual tumor burden following cytoreductive therapy. Brentuximab vedotin (SGN-35) comprises an anti-CD30 antibody conjugated by a protease-cleavable linker to the potent antimicrotubule agent, monomethyl auristatin E (MMAE). In recent phase 2 trials, brentuximab vedotin induced objective responses in 75% of patients with Hodgkin lymphoma (HL) (Chen 2011) and 86% of patients with systemic ALCL (sALCL) (Pro 2011). Fifteen of 160 patients (9%) who participated in these two phase 2 studies received an allo-SCT as their first subsequent antitumor therapy after treatment with brentuximab vedotin. This case series describes the initial experience of these patients. Methods: Patients received 1.8 mg/kg brentuximab vedotin administered every 3 weeks as a 30-minute outpatient IV infusion for up to 16 cycles of treatment. Antitumor activity was based on objective response assessments according to the Revised Response Criteria for Malignant Lymphoma (Cheson 2007). After discontinuing brentuximab vedotin, patients were followed for survival/disease status and information regarding subsequent therapy, including allo-SCT, was collected. Results: Fifteen patients (7 with HL and 8 with sALCL) received an allo-SCT as their first subsequent antitumor therapy following brentuximab vedotin treatment. The median age was 28.0 years (range 17–61 years) and the majority (67%) were female. The median time since initial HL/sALCL diagnosis was 27.3 months (range 6.2–108 months). The median number of therapies patients had received prior to brentuximab vedotin was 3.0 (range 2–5) and 12 patients had previously received an autologous SCT. Patients received a median of 9.0 cycles (range 4–16) of brentuximab vedotin and all 15 patients achieved an objective response per independent radiological review; best response was CR for 12 patients (5 with HL and 7 with sALCL) and PR for 3 patients (2 with HL and 1 with sALCL). The median time to objective response was 1.4 months (range 1.2–2.6 months) and all 15 patients maintained an objective response at the time of the last assessment prior to allo-SCT. The median time between the last dose of brentuximab vedotin and the start of the SCT conditioning regimen was 1.4 months (range 0.6–3.3 months). Thirteen of the 15 patients (87%) are alive and remain in follow-up post allo-SCT. The median duration of follow-up from first dose of brentuximab vedotin is 16.9 months (range 8.2–21.1 months). Five patients (1 with HL and 4 with sALCL) have either progressed or died post-transplant. Four of these 5 patients had achieved a CR with brentuximab vedotin treatment. Of the 2 patients who died (both patients with sALCL who had achieved a CR with brentuximab vedotin treatment), one death was disease-related (not formally restaged) and the other was due to transplant-related complications. The median PFS at the time of this analysis is 21.1 months (range 8.2–21.1 months). Treatment-emergent adverse events that occurred prior to allo-SCT in >20% of patients were peripheral sensory neuropathy and pyrexia (53%; n=8), diarrhea and neutropenia (47%; n=7), nausea (33%; n=5), and chills and dyspnea (27%; n=4). Thirteen of 15 patients (87%) experienced AEs of ≥ Grade 3 prior to allo-SCT; the most common (reported in >10% of patients) were neutropenia (47%; n=7), anemia and thrombocytopenia (27%; n=4), and abdominal pain, pain, and peripheral sensory neuropathy (13%; n=2). Two patients discontinued brentuximab vedotin treatment due to an AE (peripheral sensory neuropathy) before subsequently receiving allo-SCT. Conclusions: Treatment with brentuximab vedotin provided cytoreduction in patients with relapsed or refractory HL and sALCL, many of whom had failed a prior autologous SCT. Thirteen of the 15 patients (87%) achieved an objective response with brentuximab vedotin treatment prior to allo-SCT and remain in follow-up at the time of this analysis. Ten of the 15 patients (67%) remain in remission. Our results suggest that brentuximab vedotin may be an option for reducing tumor burden to facilitate a consolidative allo-SCT and warrants further study. Disclosures: Illidge: Seattle Genetics, Inc.: Consultancy, Research Funding; Millennium/Takeda: Consultancy, Honoraria. Off Label Use: Brentuximab vedotin (SGN-35) comprises an anti-CD30 antibody conjugated by a protease-cleavable linker to the potent antimicrotubule agent, monomethyl auristatin E (MMAE). It is an investigational agent that is being studied in CD30+ malignancies. Bouabdallah:Seattle Genetics, Inc.: Research Funding. Chen:Seattle Genetics, Inc.: Consultancy, Research Funding, Travel Expenses. Gopal:Seattle Genetics: Consultancy, Honoraria, Research Funding; Millennium: Honoraria, Speakers Bureau; Cephalon: Research Funding; Spectrum: Research Funding; Piramal: Research Funding; Merck: Research Funding; Calistoga: Research Funding; Abbott: Research Funding; Pfizer: Research Funding; SBIO: Research Funding; Gilead: Research Funding; Genzyme: Speakers Bureau; Amgen: Speakers Bureau; Cellular Therapeutics Inc.: Speakers Bureau. Moskowitz:Seattle Genetics, Inc.: Consultancy, Research Funding; Cephalon: Research Funding; Genentech: Research Funding; Plexxicon: Research Funding. Ramchandren:Seattle Genetics, Inc.: Research Funding. Rosenblatt:Seattle Genetics, Inc.: Research Funding. Shustov:Seattle Genetics, Inc.: Consultancy, Research Funding; Millennium: Honoraria. Tilly:Genentech: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau, Travel/accommodations/meeting expenses; Seattle Genetics, Inc.: Membership on an entity's Board of Directors or advisory committees, Research Funding; Roche: Membership on an entity's Board of Directors or advisory committees, Research Funding; Amgen: Research Funding, Speakers Bureau; Pfizer: Speakers Bureau; Janssen Cilag: Speakers Bureau. Trippett:Seattle Genetics, Inc.: Research Funding; OSI Pharmaceuticals: DSMB Chair. Grove:Seattle Genetics, Inc.: Employment; Seattle Genetics, Inc.: Equity Ownership. Advani:Seattle Genetics, Inc.: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding.


2007 ◽  
Vol 25 (23) ◽  
pp. 3407-3414 ◽  
Author(s):  
Edith A. Perez ◽  
Guillermo Lerzo ◽  
Xavier Pivot ◽  
Eva Thomas ◽  
Linda Vahdat ◽  
...  

PurposeTo evaluate the efficacy and safety of ixabepilone in patients with metastatic breast cancer (MBC) resistant to anthracycline, taxane, and capecitabine, in this multicenter, phase II study.Patients and MethodsPatients with measurable disease who had tumor progression while receiving prior anthracycline, taxane, and capecitabine were enrolled. Ixabepilone 40 mg/m2monotherapy was administered as a 3-hour intravenous infusion on day 1 of a 21-day cycle. The primary end point was objective response rate (ORR), assessed by an independent radiology facility (IRF).ResultsA total of 126 patients were treated and 113 were assessable for response. Patients were heavily pretreated: 88% had received at least two lines of prior chemotherapy in the metastatic setting. IRF-assessed ORR was 11.5% (95% CI, 6.3% to 18.9%) for response-assessable patients. Investigator-assessed ORR for all treated patients was 18.3% (95% CI, 11.9% to 26.1%). Fifty percent of patients achieved stable disease (SD); 14.3% achieved SD ≥ 6 months. Median duration of response and progression-free survival were 5.7 and 3.1 months, respectively. Median overall survival was 8.6 months. Patients received a median of 4.0 treatment cycles (range, one to 16 cycles), and 25% of patients received ≥ eight cycles. Grade 3/4 treatment-related events included peripheral sensory neuropathy (14%), fatigue/asthenia (13%), myalgia (8%), and stomatitis/mucositis (6%). Resolution of grade 3/4 peripheral sensory neuropathy occurred after a median period of 5.4 weeks.ConclusionIxabepilone demonstrated clear activity and a manageable safety profile in patients with MBC resistant to anthracycline, taxane, and capecitabine. Responses were durable and notable in patients who had not previously responded to multiple prior therapies.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 1745-1745 ◽  
Author(s):  
Christopher A. Yasenchak ◽  
Charles M. Farber ◽  
Lihua Elizabeth Budde ◽  
Stephen M. Ansell ◽  
Ranjana Advani ◽  
...  

Abstract Background Outcomes for patients with DLBCL have improved over the past decade, with the addition of rituximab to CHOP or CHOP-like multi-agent chemotherapy regimens improving the 3-year overall survival (OS) of patients by 10-16% compared to multi-agent chemotherapy alone (Coiffier 2002; Pfreundschuh 2010). However, patients with high-intermediate or high-risk disease have relatively poor outcomes with the standard RCHOP regimen (Ziepert 2010); in a recent prospective trial of intermediate- and high-risk DLBCL patients, complete response (CR) rate for RCHOP alone was 26% (Hainsworth 2011). Brentuximab vedotin (ADCETRIS®) is an antibody-drug conjugate comprising the antibody cAC10, specific for human CD30, covalently attached to the microtubule-disrupting agent monomethyl auristatin E (MMAE) via a protease-cleavable linker. Brentuximab vedotin has demonstrated compelling activity as a single agent in patients with relapsed or refractory DLBCL, even those with low CD30 expression (Bartlett 2013). This phase 2, randomized, open label study is designed to evaluate the antitumor activity and safety of brentuximab vedotin (1.2 or 1.8 mg/kg) when administered in combination with standard RCHOP chemotherapy (A+RCHOP) for the front-line treatment of patients with CD30-unselected high-intermediate/high-risk (standard IPI score 3–5 or age-adjusted IPI [aaIPI] score 2–3) DLBCL (ClinicalTrials.gov NCT01925612). Methods Patients were randomized to receive up to 6 cycles of either 1.2 or 1.8 mg/kg brentuximab vedotin administered IV on Day 1 of every 21-day cycle in combination with RCHOP; prednisone was administered orally on Days 1-5 of every 21-day cycle. Assessments included disease response per Cheson 2007, as evaluated by the investigator, surveillance of adverse events (AEs), physical examination findings, and laboratory testing. The primary endpoints for this study are the CR rate at the end of treatment (EOT) and the type, incidence, and severity of AEs. Key secondary endpoints include objective response rate (ORR), progression-free survival (PFS), and OS. Results At the time of the planned interim analysis, 33 patients were enrolled (17 patients, 1.2 mg/kg A+RCHOP; 16 patients, 1.8 mg/kg A+RCHOP). Median age for all patients was 66 years (range, 21 to 81). At baseline, 36% were high-risk (IPI 4-5, aaIPI 3) and 64% were high-intermediate risk (IPI 3, aaIPI 2). The majority of patients (73%) had Stage IV disease and 33% had an ECOG status of 2. At the time of interim analysis, a total of 12 patients (6 patients in each arm) had completed EOT. Across both dose levels, ORR was 92% (11/12), with 7 CRs (58%), 4 PRs (33%), and 1 PD. The patient with PD subsequently died. Patients with PR had a median reduction of baseline tumor size of 84% (range, 92% to 83%), as measured by SPD. The only patient with follow-up after EOT converted from PR to CR without subsequent therapy. Treatment-emergent AEs occurring in ≥30% of patients treated (26/33) were nausea, diarrhea, peripheral sensory neuropathy, fatigue, and decreased appetite. Grade 3 or higher events occurring in more than 2 patients were febrile neutropenia and neutropenia. Events of peripheral neuropathy occurred equally per arm (46%, 1.2 mg/kg A+RCHOP; 46% 1.8 mg/kg A+RCHOP) and were generally Grade 1 or 2 (15% and 23%, respectively); events were of similar grade across dose levels. The median time to onset of any grade of peripheral neuropathy was 6 weeks (range, 2 to 10 weeks). Five patients (19%) had dose reductions due to peripheral neuropathy and 3 patients (12%) had dose reductions due to febrile neutropenia. One patient who received 1.2 mg/kg A+RCHOP discontinued study drug due to an AE (thrombocytopenia). Conclusions At doses of 1.2 or 1.8 mg/kg, A+RCHOP exhibited manageable toxicity in the treatment of newly-diagnosed DLBCL; the incidence of peripheral neuropathy was similar to single-agent administration of brentuximab vedotin (Pro 2012, Younes 2012) and RCHOP alone (Rummel 2013, Flinn 2014). In 12 patients with response-assessable, high-intermediate and high-risk DLBCL, A+RCHOP showed encouraging antitumor activity, with an ORR of 92% and a CR rate of 58%. Disclosures Yasenchak: Seattle Genetics, Inc.: Research Funding. Off Label Use: Brentuximab vedotin is indicated in the US for treatment of patients with Hodgkin lymphoma after failure of autologous stem cell transplant or after failure of at least two prior multi-agent chemotherapy regimens in patients who are not ASCT candidates and for the treatment of patients with systemic anaplastic large cell lymphoma after failure of at least one prior multi-agent chemotherapy regimen. . Farber:Seattle Genetics, Inc.: Research Funding. Budde:Seattle Genetics, Inc.: Research Funding. Ansell:Seattle Genetics, Inc.: Research Funding. Advani:Takeda Pharmaceuticals International Co.: Research Funding; Celgene: Research Funding; Pharmacyclics: Research Funding; Jansseen Pharmaceuticals: Research Funding; Genentech: Research Funding; Seattle Genetics, Inc.: Research Funding, Travel expenses Other. Holkova:Seattle Genetics, Inc.: Research Funding. Halwani:Seattle Genetics, Inc.: Research Funding. Knapp:Takeda Pharmaceuticals International Co.: Research Funding; EMD Serono: Research Funding; Bristol Myers Squibb: Research Funding; Celgene: Research Funding; Merck: Research Funding; Heron Pharmaceuticals: Research Funding, Travel expenses, Travel expenses Other; Genentech: Research Funding, Travel expenses, Travel expenses Other; Seattle Genetics, Inc.: Research Funding; Pharmacyclics: Research Funding. Fayad:Seattle Genetics, Inc.: Consultancy, Research Funding. Kolibaba:Genentech: Research Funding; Takeda Pharmaceuticals International Co.: Research Funding; Seattle Genetics, Inc.: Research Funding. Patel-Donnelly:Seattle Genetics, Inc.: Research Funding. Seetharam:Seattle Genetics, Inc.: Research Funding. Manley:Seattle Genetics, Inc.: Employment, Equity Ownership. Bartlett:Genentech: Research Funding; ImaginAb: Research Funding; Celgene: Research Funding; MedImmune: Research Funding; Novartis: Research Funding; Pharmacyclics: Research Funding; Pfizer: Research Funding; Takeda Pharmaceuticals International Co.: Research Funding; Seattle Genetics, Inc.: Research Funding, Travel expenses Other; Janssen: Research Funding; Astra Zeneca: Research Funding.


2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 740-740 ◽  
Author(s):  
Chihiro Kosugi ◽  
Keiji Koda ◽  
Tadamichi Denda ◽  
Keiichiro Ishibashi ◽  
Hideyuki Ishida ◽  
...  

740 Background: The FOLFOX with bevacizumab (B-mab) has been established as a standard first-line therapy for metastatic colorectal cancer (mCRC), and OPTIMOX1 study suggested that stop and go strategy for oxaliplatin reduced peripheral sensory neuropathy. The CapeOx is one of the standard treatments for mCRC that has been proven to be as effective as the FOLFOX regimen. Thus we accessed the efficacy and safety of the combination of intermittent CapeOx + B-mab as a first-line therapy in patients with mCRC in this trial. Methods: Eligibility criteria included ECOG PS: 0–1, No Peripheral neuropathy ( < Grade 1). Patients received CapeOX (oxaliplatin 130mg/m2, capecitabine 2000mg/m2 + B-mab 7.5mg/kg) q3 weeks for 5 cycles, maintenance without oxaliplatin for 5 cycles, and reintroduction CapeOX + B-mab for 5 cycles until progression. Primary endpoint was Progression Free Survival (PFS). Results: Between March 2011 and August 2013, 55 pts were enrolled. Baseline characteristics were median age of 67 years (range, 20–83); PS 0/1 (49/6 pts); male/female (33/22 pts), colon/rectum (28/27pts) and metastatic lesion liver/lung/lymph nodes (32/18/21 pts). A total of 47 pts were evaluated as Par Protocol Set population. 38 pts moved from initial CapeOX to maintenance Capecitabine. 20 pts moved to CapeOx reintroduction. Median PFS was 14.7months (95%CI, 8.6–19.5) and Median TTF was 12.3 months (95%CI, 10.3–14.3). Best overall response rate was 48.0%. Oxaliplatin reintroduction rate was 57.4%. Main grade 3/4 toxicity were: neutropenia (1 pt), anemia (1 pt), peripheral neuropathy (1 pt), allergic reaction of oxaliplatin (1 pt), deep vein thrombosis (1 pt), nausea (1 pt), hand-foot syndrome (1 pt), and hypertension (1 pt). Conclusions: This study met its primary endpoint PFS. CapeOx intermittent oxaliplatin indicated to reduce incidence of severe neutropenia and peripheral sensory neuropathy. The results suggested that our treatment strategy was well tolerate and effective for first line therapy in mCRC, and maintenance duration for 5 cycles, was reasonable. Clinical trial information: UMIN000005732.


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