Brentuximab Vedotin As Single Agent in the Treatment of Relapsed/Refractory CD30 Positive Peripheral T-Cell Lymphoma Patients: A Phase 2 Study of the Fondazione Italiana Linfomi

Options are limited for patients with relapsed or refractory (R/R) peripheral T-cell lymphoma (PTCL) for whom the median overall survival (OS) and progression free survival (PFS) are less than 6 months. Patients who are candidates for allogeneic stem cell transplantation can be cured should they achieve adequate response to salvage therapy prior to transplant. Patients who relapse after transplant or who are not transplant candidates are often treated with sequential single-agent therapies with non-curative intent. Only four agents are FDA-approved for the treatment of R/R PTCL including pralatrexate, romidepsin and belinostat. The objective response rate to each of these agents is only 25-30% and duration of response (DOR) is limited. For a specific subtype of PTCL, namely systemic anaplastic large-cell lymphoma, single-agent brentuximab vedotin (BV) treatment resulted in an 86% overall response rate (ORR) and a 57% complete response (CR) rate in R/R disease. A phase 2 study evaluated the efficacy and safety of BV in angioimmunoblastic T-cell lymphoma (AITL) and PTCL not otherwise specified reporting an ORR of 41% (Horwitz et al, Blood. 2014). We conducted a phase 2 study to determine the antitumor efficacy of single-agent BV (1.8 mg/kg administered intravenously every 3 weeks for a maximum of 16 cycles) as measured by the ORR in R/R CD30+ PTCL patients (PTCL not otherwise specified, AITL and transformed mycosis fungoides). Secondary objectives were to assess duration of tumor control, including duration of response and progression-free survival, overall survival and the safety and tolerability of BV in this setting. ClinicalTrials.gov Identifier: NCT02497131. From September 2015 and September 2019, 25 patients were enrolled and 23 (population for the final analysis) received at least one BV infusion (median 5, range 2-16). There were 10 females, 18 patients were in stage IV and 16 subjects were refractory to the last therapy. Median number of therapies received prior to BV was 2 (range 1-6). Final ORR was 30.4%, with 4 CR. CR patients were 3 PTCL not otherwise specified and 1 AITL with response duration of 2.8, 3.3, 4.5 and 10.7 months, respectively. Best response was achieved at the III cycle. PFS was 4.3% at 12 months (median reached at 4.4 months), OS at 12 months was 49.8% (median reached at 11.4 months) and median DOR was 3.4 months. No correlation between CD30 expression per central review and response was observed. Twenty-one hematological toxicities occurred, 14 of them were grade ≥3 (10 thrombocytopenia and 4 neutropenia, all resolved or improved during BV therapy). Among extra-hematological toxicities (n=26, 3.5% grade ≥3), 7 were serious adverse events. To note, 6 of them (23.1%) were lung infection/pneumonia. Only one peripheral neuropathy (grade 1) occurred. In terms of response, the ORR and PFS in this trial are comparable to those in similar populations studied with both other recently approved agents, such as pralatrexate and romidepsin, and with the other phase 2 study on BV. The ORR of 30% and the OS of in the present study places BV among the active agents for PTCL. Safety concerns emerged about infections, claiming for a strict monitoring for these toxicities. Disclosures Corradini: Gilead: Consultancy, Honoraria, Other: Travel and accommodations paid by for; Kite: Consultancy, Honoraria; KiowaKirin: Consultancy, Honoraria; Sanofi: Consultancy, Honoraria; Janssen: Consultancy, Honoraria; Incyte: Consultancy; Servier: Consultancy, Honoraria; Takeda: Consultancy, Honoraria, Other; BMS: Other; Daiichi Sankyo: Consultancy, Honoraria; Celgene: Consultancy, Honoraria, Other: Travel and accommodations paid by for; F. Hoffman-La Roche Ltd: Consultancy, Honoraria; Novartis: Consultancy, Honoraria, Other: Travel and accommodations paid by for; AbbVie: Consultancy, Honoraria, Other: Travel and accommodations paid by for; Amgen: Consultancy, Honoraria, Other: Travel and accommodations paid by for. Zinzani:Immune Design: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; MSD: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Portola: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Servier: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Janssen: Consultancy, Honoraria, Speakers Bureau; Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; BMS: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Eusapharma: Consultancy, Speakers Bureau; Gilead: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Sandoz: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; EUSA Pharma: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Incyte: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Kirin Kyowa: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Sanofi: Consultancy, Membership on an entity's Board of Directors or advisory committees; TG Therapeutics, Inc.: Honoraria, Speakers Bureau; AbbVie: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Kyowa Kirin: Consultancy, Speakers Bureau; Merck: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; ADC Therapeutics: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celltrion: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Immune Design: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Janssen-Cilag: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Verastem: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Takeda: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau.

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Final Results From a Pivotal, Multicenter, International, Open-Label, Phase 2 Study of Romidepsin In Progressive or Relapsed Peripheral T-Cell Lymphoma (PTCL) Following Prior Systemic Therapy

Blood ◽

10.1182/blood.v116.21.114.114 ◽

2010 ◽

Vol 116 (21) ◽

pp. 114-114 ◽

Cited By ~ 7

Author(s):

Bertrand Coiffier ◽

Barbara Pro ◽

H. Miles Prince ◽

Francine M Foss ◽

Lubomir Sokol ◽

...

Keyword(s):

T Cell ◽

Board Of Directors ◽

Systemic Therapy ◽

Research Funding ◽

Cell Lymphoma ◽

T Cell Lymphoma ◽

Phase 2 ◽

Open Label ◽

Advisory Committees ◽

Prior Systemic Therapy

Abstract Abstract 114 Background: Romidepsin is a potent HDAC inhibitor approved by the FDA for patients (pts) with cutaneous T-cell lymphoma who have received at least 1 prior systemic therapy. Durable clinical benefit and tolerability of romidepsin in pts with recurrent or refractory PTCL have been previously observed in a phase 2 trial conducted by the National Cancer Institute. The aim of this phase 2, single-arm, open-label registration study was to evaluate the activity of romidepsin in a larger number of pts with progressive or relapsed PTCL. Methods: Pts with histologically confirmed PTCL (PTCL NOS, angioimmunoblastic T-cell lymphoma, ALCL [ALK-1 negative], other subtypes) who failed or were refractory to ≥ 1 prior systemic therapy, and had measurable disease and ECOG performance status 0–2 were eligible. Exclusions included inadequate bone marrow or other organ function and significant cardiovascular abnormalities. Pts received romidepsin 14 mg/m2 as a 4-h IV infusion on days 1, 8, and 15 every 28 days for up to 6 cycles; treatment could be extended for stable disease (SD) or response. The primary endpoint was rate of complete response (CR + CRu) as evaluated by a central Independent Review Committee (IRC) using International Working Criteria for non-Hodgkin's lymphoma. IRC assessment consisted of a 2-step process, with initial radiographic review of images (CT, MRI) followed by an overall clinical assessment based on the radiology evaluations, photographs, and relevant clinical parameters. Secondary endpoints included objective response rate (ORR): CR + CRu + partial response (PR), investigator-assessed responses, duration of response, time to response, and safety. Results: 131 pts from 48 US, European, and Australian sites were enrolled and received at least 1 dose of romidepsin (as-treated population); 130 patients had histologically confirmed PTCL by central review. Mean age of all pts was 59.4 y (range, 20–83) and median time since diagnosis was 1.25 y (range, 0–17). Median number of prior systemic therapies was 2 (range, 1–8). 21 pts (16%) had failed a prior stem cell transplant. Responses assessed by the IRC are noted in the table below. Longest duration of response is 26+ mo and 16 (94%) of the 17 pts with a CR had not progressed as of the data cutoff (March 31, 2010). Investigator-assessed responses included 21 pts (16%) with CR + CRu, 18 pts (14%) with PR for an ORR of 30%. Currently, 13 pts continue to receive treatment (range, 10–36 cycles). Adverse events (AEs) were reported in 126 of 131 pts (96%). AEs reported in ≥ 20% of pts were nausea (59%), fatigue (41%), vomiting (38%), thrombocytopenia (38%), diarrhea (35%), pyrexia (34%), neutropenia (30%), anorexia (28%), constipation (28%), anemia (23%), and dysgeusia (21%). AEs ≥ grade 3 were reported for 86 pts (66%), with the most common (≥ 5%) being pneumonia (5%), pyrexia (5%), sepsis (5%), and vomiting (5%). 60 pts (46%) had at least 1 serious AE: the most frequently reported (≥ 5%) were pyrexia (7%), pneumonia (5%), vomiting (5%), and sepsis (5%). 22 pts (17%) withdrew due to AEs. 8 pts (6%) died within 30 days of the last dose of romidepsin; 1 death, due to sepsis, was assessed as possibly related to treatment. Conclusions: Complete and durable responses were observed with single agent romidepsin in pts with relapsed PTCL. These data support the therapeutic potential for romidepsin in relapsed PTCL and suggest that romidepsin is a strong candidate for inclusion in future novel regimens for these diseases. As of the data cutoff (March 31, 2010), the median duration of follow-up for CR is 8.2 mo. Disclosures: Coiffier: Gloucester: Consultancy, Honoraria; Celgene: Consultancy, Honoraria, Research Funding, Speakers Bureau. Off Label Use: Romidepsin is indicated for the treatment of cutaneous T-cell lymphoma (CTCL) in patients who have received at least one prior systemic therapy. Romidepsin is not currently approved for the treatment of peripheral T-cell lymphoma (PTCL). Pro:Celgene: Research Funding. Prince:Celgene: Consultancy, Honoraria, Research Funding. Foss:Celgene: Consultancy; Eisai: Consultancy, Speakers Bureau; Merck: Speakers Bureau; Allos: Consultancy, Speakers Bureau; Cephalon: Speakers Bureau. Sokol:Celgene: Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau. Caballero:Celgene: Membership on an entity's Board of Directors or advisory committees. Morschhauser:Roche: Consultancy, Honoraria; Bayer: Honoraria. Padmanabhan:Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau. Shustov:Celgene: Research Funding. Nichols:Celgene: Employment. Carroll:Celgene: Employment. Balser:Gloucester Pharmaceutical: Consultancy. Horwitz:Celgene: Consultancy, Honoraria.

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The Eatl-001 Trial: Results of a Phase 2 Study of Brentuximab Vedotin and CHP Followed By Consolidation with High-Dose Therapy - Autologous Stem-Cell Transplantation (HDT-ASCT) in the Frontline Treatment of Patients with Enteropathy-Associated T-Cell Lymphoma

Blood ◽

10.1182/blood-2021-153709 ◽

2021 ◽

Vol 138 (Supplement 1) ◽

pp. 136-136

Author(s):

David Sibon ◽

Sherine Khater ◽

Julie Bruneau ◽

Chantal Brouzes ◽

Ludovic Lhermitte ◽

...

Keyword(s):

T Cell ◽

High Risk ◽

Board Of Directors ◽

Gene Rearrangement ◽

Cell Lymphoma ◽

Brentuximab Vedotin ◽

Phase 2 ◽

Advisory Committees ◽

Phase 2 Study ◽

Frontline Treatment

Abstract Background Enteropathy-associated T-cell lymphoma (EATL), previously designated type 1 EATL, is a neoplasm of intraepithelial T cells that occurs in individuals with celiac disease (CD). It is a rare lymphoma, accounting for approximately 3% of all peripheral T-cell lymphomas (PTCLs). EATL may be preceded by refractory CD (RCD), defined as persistent or recurrent symptoms and signs of malabsorption with villous atrophy despite a strict gluten-free diet for more than 12 months. Currently, RCD is categorized into 2 types, based on immunophenotypic and molecular criteria. In RCD-II, intraepithelial lymphocytes (IELs) have an aberrant phenotype and a clonal TCR gene rearrangement. RCD-II is considered a low-grade lymphoma of intraepithelial T cells, with a high risk of transformation into EATL. CD or RCD may be diagnosed prior to or concomitant with EATL. EATL has a poor prognosis due to perforation or obstruction of the bowel, sepsis, malnutrition and treatment resistance, with 2-year OS of 20% (de Baaij, CCR 2015). An EATL prognostic index (EPI) has been developed, that can distinguish 3 risk groups (de Baaij, CCR 2015). Optimal treatment of EATL is an unmet need, and novel therapeutic approaches are required. Most EATLs are CD30+ and could be targeted by brentuximab vedotin (BV). Based on the encouraging activity and manageable safety profile of BV and CHP (cyclophosphamide, doxorubicin and prednisone) combination in CD30+ PTCLs, the EATL-001 phase 2 trial was initiated to assess the efficacy and safety of BV-CHP followed by HDT-ASCT for the frontline treatment of patients (pts) with EATL (ClinicalTrials.gov No. NCT03217643). Here we report the first results of the EATL-001 trial. Methods EATL-001 is an Investigator Initiated-Sponsored Research phase 2 study, on behalf of the CELAC (French NCI-labeled network of Centers of Expertise for Lymphomas Associated with Celiac disease). Key inclusion criteria were as follows: Newly diagnosed CD30+ (≥10% of neoplastic cells by central review) EATL (WHO 2016 criteria), 18-65 years, PS 0-3. Response was assessed according to the Lugano classification. Pts were scheduled to receive 4 cycles of BV+CHP as induction. Responding pts received 2 cycles of Etoposide (200 mg/m2) + Methotrexate (3 g/m2) followed by HDT-ASCT (BEAM conditioning regimen). The primary endpoint was 2-year PFS per investigator. Underlying CD/RCD diagnosis was based on uninvolved duodenal histology (including CMF and TCR gene rearrangement analysis of IEL), serology and HLA typing. Results A total of 14 pts were included between February 2018 and February 2021. The median age was 54 years (range, 34-65) and 64% were male. 11 pts (79%) had initial surgery for bowel obstruction (n=6) or jejunal perforation (n=5). All pts had CD, diagnosed prior to (n=4) or concomitant with (n=10) EATL. 9 pts (64%) had RCD-II. CD30 expression ranged from 10% to 100%, nine cases having 100% positivity. EPI was high-risk in 4 pts (29%), intermediate-risk in 6 pts (43%), and low-risk in 4 pts (29%). Preliminary results by investigator assessment show an overall response rate following completion of the induction of 79% (11/14) with 64% (9/14) achieving a complete response. 3 pts had primary progressive disease (all had high-risk EPI), of which 2 died of the lymphoma. The 11 responding pts, still in response before intensification, underwent HDT-ASCT. 2 pts died of septic shock during HDT-ASCT. With a median follow-up of 2.1 years, there was no relapse and the 2-year PFS and OS for all pts were 63% and 68%, respectively. The incidence of AEs was consistent with the known safety profiles of BV-CHP regimen. Conclusions EATL-001 is the first prospective phase 2 study dedicated to EATL. BV-CHP was well tolerated and induced high response rates, allowing the majority of patients to be transplanted. This novel therapeutic approach shows promising efficacy compared to historical controls. Disclosures Sibon: Takeda: Consultancy; Roche: Consultancy; Janssen: Consultancy; Abbvie: Consultancy; iQone: Consultancy. Cartron: Roche, Celgene-BMS: Consultancy; Danofi, Gilead, Novartis, Jansen, Roche, Celgene-BMS, Abbvie, Takeda: Honoraria. Morschhauser: Incyte: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees; Gilead: Consultancy, Membership on an entity's Board of Directors or advisory committees; Chugai: Honoraria; AstraZenenca: Membership on an entity's Board of Directors or advisory committees; F. Hoffmann-La Roche Ltd: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; AbbVie: Consultancy, Membership on an entity's Board of Directors or advisory committees; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Genentech, Inc.: Consultancy; Janssen: Honoraria; Roche: Consultancy, Speakers Bureau; Epizyme: Consultancy, Membership on an entity's Board of Directors or advisory committees; BMS: Consultancy, Membership on an entity's Board of Directors or advisory committees; Genmab: Membership on an entity's Board of Directors or advisory committees; Servier: Consultancy. Hermine: Takeda: Consultancy. OffLabel Disclosure: Brentuximab vedotin is not approved in Europe for EATL.

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Nanatinostat (Nstat) and Valganciclovir (VGCV) in Relapsed/Refractory (R/R) Epstein-Barr Virus-Positive (EBV +) Lymphomas: Final Results from the Phase 1b/2 VT3996-201 Study

Blood ◽

10.1182/blood-2021-152603 ◽

2021 ◽

Vol 138 (Supplement 1) ◽

pp. 623-623

Author(s):

Bradley M. Haverkos ◽

Onder Alpdogan ◽

Robert Baiocchi ◽

Jonathan E Brammer ◽

Tatyana A. Feldman ◽

...

Keyword(s):

T Cell ◽

B Cell ◽

Board Of Directors ◽

Research Funding ◽

Cell Lymphoma ◽

B Cell Lymphoma ◽

T Cell Lymphoma ◽

Phase 2 ◽

Advisory Committees ◽

Phase 1B

Abstract Introduction: EBV can be associated with several types of lymphomas, with reported frequencies of up to 8-10% in diffuse large B cell lymphoma (DLBCL), 30-100% in peripheral T cell lymphoma (PTCL) subtypes, 80% in post-transplant lymphoproliferative disease (PTLD), and 15-30% in classical Hodgkin lymphoma (HL), with adverse impact on outcomes. Nanatinostat (Nstat) is a Class-I selective oral HDAC inhibitor that induces the expression of the lytic BGLF4 EBV protein kinase in EBV + tumor cells, activating ganciclovir (GCV) via phosphorylation. This results in GCV-induced inhibition of viral and cellular DNA synthesis and apoptosis. Herein we report the final results from this exploratory study for patients with R/R EBV + lymphomas (NCT03397706). Methods: Patients aged ≥18 with histologically confirmed EBV + lymphomas (defined as any degree of EBER-ISH positivity), R/R to ≥1 prior systemic therapies with an absolute neutrophil count ≥1.0×10 9/L, platelet count ≥50×10 9/L, and no curative treatment options per investigator were enrolled into 5 dose escalation cohorts to determine the recommended phase 2 doses (RP2D) of Nstat + VGCV for phase 2 expansion. Phase 2 patients received the RP2D (Nstat 20 mg daily, 4 days per week + VGCV 900 mg orally daily) in 28-day cycles until disease progression or withdrawal. Primary endpoints were safety/RP2D (phase 1b) and overall response rate (ORR) (phase 2); secondary endpoints were pharmacokinetics, duration of response (DoR), time to response, progression free survival and overall survival. Responses were assessed using Lugano 2014 response criteria beginning at week 8. Results: As of 18 June 2021, 55 patients were enrolled (phase 1b: 25; phase 2: 30). Lymphoma subtypes were DLBCL (n=7), extranodal NK/T-cell (ENKTL) (n=9), PTCL, not otherwise specified (PTCL-NOS) (n=5), angioimmunoblastic T cell lymphoma (n=6), cutaneous T cell (n=1), HL (n=11), other B cell (n=3), and immunodeficiency-associated lymphoproliferative disorders (IA-LPD) (n=13), including PTLD (n=4), HIV-associated (n=5), and other [n=4: systemic lupus erythematosus (SLE) (n=2), common variable/primary immunodeficiency (n=2)]. Median age was 60 years (range 19-84), M/F 35/20, median number of prior therapies was 2 (range 1-11), 76% had ≥2 prior therapies, 78% were refractory to their most recent prior therapy, and 84% had exhausted standard therapies. EBER positivity ranged from <1 to 90% in 42 tumor biopsies with central lab review. The most common treatment-emergent adverse events (TEAEs) of all grades were nausea (38%), neutropenia (34%), thrombocytopenia (34%), and constipation (31%). Grade 3/4 TEAEs in >10% of patients included neutropenia (27%), thrombocytopenia (20%), anemia (20%), and lymphopenia (14%). Dose reductions and interruptions due to treatment-related AEs were reported in 14 (25%) and 16 (29%) patients, respectively. Only 1 patient had to discontinue therapy. There were no cases of CMV reactivation. For 43 evaluable patients (EBER-ISH + with ≥ 1 post-treatment response assessment) across all histologies, the investigator-assessed ORR and complete response (CR) rates were 40% (17/43) and 19% (8/43) respectively. Patients with T/NK-NHL (n=15; all refractory to their last therapy) had an ORR of 60% (n=9) with 27% (n=4) CRs. Two patients (ENKTL and PTCL-NOS) in PR and CR respectively were withdrawn at 6.7 and 6.6 months (m) respectively for autologous stem cell transplantation. For DLBCL (n=6), ORR/CR was 67%/33% (both CRs were in patients refractory to first-line R-CHOP). For IA-LPD (n=13), ORR/CR was 30%/20% (PTLD: 1 CR, other: 1 CR, 1 PR). For HL (n=10), there was 1 PR (4 SD). The median DoR for all responders was 10.4 m, with a median follow-up from response of 5.7 m (range 1.9-34.1 m). For the 17 responders, 8 lasted ≥ 6 months. Conclusions: The combination of Nstat and VGCV was well-tolerated with a manageable toxicity profile and shows promising efficacy in patients with R/R EBV + lymphomas, particularly in refractory T/NK-NHL, a heterogeneous group of aggressive lymphomas with dismal outcomes, with multiple durable responses. Further evaluation of this novel combination therapy for the treatment of recurrent EBV + lymphomas is ongoing in the phase 2 VT3996-202 trial. Disclosures Haverkos: Viracta Therapeutics, Inc.: Honoraria, Research Funding. Baiocchi: Prelude Therapeutics: Consultancy; viracta: Consultancy, Current holder of stock options in a privately-held company; Codiak Biosciences: Research Funding; Atara Biotherapeutics: Consultancy. Brammer: Seattle Genetics: Speakers Bureau; Celgene: Research Funding; Kymera Therapeutics: Consultancy. Feldman: Alexion, AstraZeneca Rare Disease: Honoraria, Other: Study investigator. Brem: Karyopharm: Membership on an entity's Board of Directors or advisory committees; SeaGen: Speakers Bureau; BeiGene: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Bayer: Membership on an entity's Board of Directors or advisory committees; KiTE Pharma: Membership on an entity's Board of Directors or advisory committees; TG Therapeutics: Consultancy; ADC Therapeutics: Membership on an entity's Board of Directors or advisory committees; Pharmacyclics/Janssen: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Morphosys/Incyte: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau. Scheinberg: Roche: Consultancy; Abbvie: Consultancy; BioCryst Pharmaceuticals: Consultancy; Alexion pharmaceuticals: Consultancy, Honoraria, Speakers Bureau; Novartis: Consultancy, Honoraria, Speakers Bureau. Joffe: AstraZeneca: Consultancy; Epizyme: Consultancy. Katkov: Viracta Therapeutics, Inc.: Current Employment. McRae: Viracta Therapeutics, Inc.: Current Employment. Royston: Viracta Therapeutics, Inc.: Current Employment. Rojkjaer: Viracta Therapeutics, Inc.: Current Employment. Porcu: Viracta: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Innate Pharma: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; BeiGene: Membership on an entity's Board of Directors or advisory committees, Research Funding; Incyte: Research Funding; Daiichi: Honoraria, Research Funding; Kiowa: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Spectrum: Consultancy; DrenBio: Consultancy.

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Tipifarnib in Relapsed or Refractory Angioimmunoblastic T-Cell Lymphoma (AITL) and CXCL12+ Peripheral T-Cell Lymphoma (PTCL): Preliminary Results from an Open-Label, Phase 2 Study

Blood ◽

10.1182/blood-2018-99-116277 ◽

2018 ◽

Vol 132 (Supplement 1) ◽

pp. 2937-2937

Author(s):

Thomas E. Witzig ◽

Lubomir Sokol ◽

Eric D Jacobsen ◽

Won-Seog Kim ◽

Francine M. Foss ◽

...

Keyword(s):

Medical Education ◽

T Cell ◽

Board Of Directors ◽

Research Funding ◽

Cell Lymphoma ◽

Advisory Board ◽

T Cell Lymphoma ◽

Advisory Committees ◽

Cxcl12 Expression ◽

Phase 2 Study

Abstract Background Tipifarnib is a potent and selective inhibitor of the enzyme farnesyltransferase (FT). FT catalyzes post-translational attachment of farnesyl groups required for localization of signaling molecules to the inner cell membrane. CXCL12 is a chemokine that is essential for T cell homing to lymphoid organs and the bone marrow, and for the maintenance of immune cell progenitors. Herein we report preliminary efficacy, safety and biomarker data from a Phase 2 study of tipifarnib in angioimmunoblastic T-cell lymphoma (AITL) and CXCL12+ peripheral T-cell lymphoma (PTCL) patients (pts). Methods This Phase 2 study is a multi-institutional, single-arm, open-label trial initially designed as a two-stage (11+7 pts) cohort to determine the efficacy, safety and biomarkers of tipifarnib in pts with relapsed/refractory (R/R) PTCL, age >/=18 years and a performance status of 0-2. Based on initial findings, the study was amended to include a cohort of AITL (n=12) and PTCL (n=12) pts with the CXCL12 rs2839695 A/A genotype (CXCL12+ cohort). Pts received tipifarnib 300 mg administered orally twice daily on days 1-21 of 28-day treatment cycles until progression of disease (PD) or unacceptable toxicity. The primary endpoint of the study is overall response rate (ORR). Ancillary studies are also ongoing to investigate the prognostic value of CXCL12 expression in patients who received standard of care treatment. Results As of 25 July 2018, 34 PTCL pts (13 AITL, 1 ALK- ALCL, 20 PTCL-NOS) have been treated with tipifarnib, 19 pts in stages 1 and 2, and 15 pts in the ongoing AITL histology and CXCL12 cohorts. Median number of prior treatment regimens was 3. The most common treatment-related adverse events (AE) (grade ≥ 3) are hematological, including neutropenia (50%), thrombocytopenia (43%), leukopenia (33%), febrile neutropenia (27%), and anemia (20%). Skin and subcutaneous tissue disorders were reported in 9 pts, 6 of them with AITL histology. One pt with AITL experienced an episode of possible Stevens Johnson Syndrome that resolved with dose discontinuation and did not recur upon re-challenge at one dose level reduction. Of 18 evaluable patients enrolled in Stages 1 and 2 of the trial, 3 partial responses (PR), 2 of them in pts with AITL histology, and 4 best responses of stable disease (SD) were observed. Pre-treatment tumor tissue CXCL12 expression correlated with favorable pt outcomes. In the AITL cohort (10 evaluable pts), 1 PR and 1 SD have been observed so far, with 5 pts pending cycle 2 response evaluation. In the CXCL12+ cohort (n=3 evaluable pts), 1 SD has been observed, with 2 pts pending cycle 2 response evaluation. Plasma levels of CXCL12 decreased over time with tipifarnib treatment. Expression of CXCL12 mRNA and other biomarkers in pre-treatment biopsies of pts in the AITL and CXCL12+ cohorts are being evaluated using RT-PCR assays. In addition, the prognostic value of CXCL12 is being investigated in approximately 100 diagnostic specimens of PTCL pts who received standard therapy. Preliminary data suggest that CXCL12 overexpression is observed in approximately 25% of PTCL and negatively affects pt survival. Conclusion Preliminary activity of tipifarnib was observed in PTCL pts, particularly in those with tumors of AITL histology and high CXCL12 expression and enrollment continues. Disclosures Witzig: Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding. Sokol:Mallinckrodt Pharmaceuticals: Consultancy; Seattle Genetics: Consultancy; Spectrum Pharmaceuticals: Consultancy. Jacobsen:Merck: Consultancy; Seattle Genetics: Consultancy. Kim:Takeda: Research Funding; J&J: Research Funding; Mundipharma: Research Funding; Roche: Research Funding; Novartis: Research Funding; Kyowa-Kirin: Research Funding; Celltrion: Research Funding. Foss:Miragen: Consultancy, Speakers Bureau; Spectrum: Consultancy; Seattle genetics: Consultancy; Mallinkrodt: Consultancy. Advani:Bristol Myers Squibb: Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board, Research Funding; Pharmacyclics: Membership on an entity's Board of Directors or advisory committees, Research Funding; Kura: Research Funding; Merck: Research Funding; Roche/Genentech: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board, Research Funding; Kyowa: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board; Regeneron: Research Funding; Janssen: Research Funding; Bayer: Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board; Cell Medica: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board; Astra Zeneca: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board; Autolus: Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board; Seattle Genetics: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board, Research Funding; Gilead/Kite: Membership on an entity's Board of Directors or advisory committees, Other: Participated in an advisory board; Takeda: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Millenium: Research Funding; Agensys: Research Funding; Celgene: Research Funding; Forty Seven: Research Funding; Infinity: Research Funding. Marin Niebla:Amgen: Other: Medical education of Staff, Speakers Bureau; Roche: Consultancy, Other: Medical education of Staff, Speakers Bureau; Takeda: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Other: Medical education of Staff, Speakers Bureau; Janssen: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: Medical education of Staff, Speakers Bureau. Piris:Kura: Honoraria; Takeda: Honoraria; Janssen: Honoraria; Gilead: Honoraria. Curry:Kura Oncology: Employment, Equity Ownership. Gualberto:Kura Oncology: Employment, Equity Ownership.

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The Aurora A Kinase Inhibitor, Alisertib, Has Broad Activity In Nonclinical Models Of T-Cell Lymphoma and Is Highly Synergistic With Romidepsin, But Not With Pralatrexate Or The Proteasome Inhibitor, Ixazomib

Blood ◽

10.1182/blood.v122.21.5141.5141 ◽

2013 ◽

Vol 122 (21) ◽

pp. 5141-5141 ◽

Cited By ~ 2

Author(s):

Kelly Zullo ◽

Luigi Scotto ◽

Jennifer E. Amengual ◽

Owen A. O'Connor

Keyword(s):

T Cell ◽

Board Of Directors ◽

Cell Lines ◽

Cell Lymphoma ◽

Single Agent ◽

B Cell Lymphoma ◽

Time Effect ◽

T Cell Lymphoma ◽

Aurora A Kinase ◽

Advisory Committees

Abstract Aurora A kinase (AAK), a serine-threonine protein kinase, regulates mitotic entry, spindle formation, and cytokinesis. Alisertib is a selective AAK investigational inhibitor with demonstrated clinical activity in acute myeloid leukemia, peripheral t-cell lymphoma (PTCL), DLBCL and other heme-lymphatic cancers. Here we report the cytotoxicity and apoptotic effect of Alisertib in a panel of T-cell-derived lymphoma cell-lines (TCL) (CTCL, HTLV+, T-ALL) and B-cell lymphoma cell-lines (DLBCL-ABC, DLBCL-GCB, MCL) alone and in combination with romidepsin, pralatrexate (PDX) and ixazomib, a proteasome inhibitor. Single agent concentration and time effect relationships were generated for 8 TCL, 4 DLBCL (2 ABC, 2 GCB) and 4 MCL cell-lines. The mean IC50 of alisertib in TCL was 350 nM (range 100-1000nM) and in B-cell lymphoma lines (DLBCL, MCL) was 200 nM (range 20-300 nM) at 48 hours, measured by growth inhibition. In all cell lines evaluated, there was a consistent 2-log fold decrease in IC50 values at 72 hours. Combination studies evaluating synergy were performed testing schedule, concentration, and time effect relationships. Interestingly, simultaneous exposure of combined alisertib and romidepsin at their IC10, IC20, and IC30 demonstrated marked synergy in TCL. Deepest synergy was observed at 72 hours with synergy coefficients ranging from 0.2 to 0.7. This synergistic interaction was restricted to the TCL cell-lines, with no benefit demonstrated in DLBCL or MCL cell lines. (Table 1) Similarly, alisertib did not demonstrate synergy in TCL, DLBCL or MCL cell lines at any concentration, combination, or time schedule with PDX or ixazomib (simultaneous incubation of alisertib + PDX, 24 hour pre-exposure alisertib followed by PDX, 24 hour pre-exposure PDX followed by alisertib; simultaneous incubation of alisertib + ixazomib).Table 1Synergy Coefficients of Alisertib in Combination with Romidepsin at 72 Hours.Combination DND41(T-ALL) J.CAM1.6(T-ALL) HH(CTCL) H9(CTCL) C5MJ(HTLV+) Romidepsin [IC10-20] +Alisertib 50 nM 0.96 0.81 1.05 1.1 1.53 Romidepsin +Alisertib 100nM 0.51 0.56 0.68 0.66 0.58 Romidepsin + Alisertib 1000nM 0.40 0.20 0.40 0.46 0.70 1 1=additive; <1=synergistic; >1= subadditive Evidence for apoptosis was confirmed for alisertib in combination with romidepsin in the TCL cell-line, H9 after 48 hours of exposure by increased caspase 3 and PARP cleavage, acetylated H3 expression, and decreased Cyclin B1, P27, and BCL2 expression; suggesting that cell death occurred through apoptosis. AnnexinV/propridium iodide via FACS analysis confirmed induction of apoptosis. These data support the observation that alisertib produces broad single-agent activity in models of TCL and demonstrates marked synergy with romidepsin. Interestingly this effect is restricted to TCL and there is no synergistic effect with ixazomib or PDX in TCL. Further evaluation of the mechanism of action with alisertib in combination with romidepsin as well as in vivo modeling of these combinations is ongoing. Disclosures: Off Label Use: Aurora kinase inhibitors are not approved for T-Cell lymphoma. Amengual:Acetylon Pharmaceuticals, INC: Membership on an entity’s Board of Directors or advisory committees, Research Funding. O'Connor:Millennium Pharmaceuticals: Membership on an entity’s Board of Directors or advisory committees, Research Funding; Spectrum Pharmaceuticals: Membership on an entity’s Board of Directors or advisory committees; Allos Therapeutics: Consultancy, Membership on an entity’s Board of Directors or advisory committees; Celgene Pharmaceuticals: Consultancy.

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A Phase I Study of Molibresib (GSK525762), a Selective Bromodomain (BRD) and Extra Terminal Protein (BET) Inhibitor: Results from Part 1 of a Phase I/II Open Label Single Agent Study in Subjects with Non-Hodgkin's Lymphoma (NHL)

Blood ◽

10.1182/blood-2018-99-117089 ◽

2018 ◽

Vol 132 (Supplement 1) ◽

pp. 1682-1682 ◽

Cited By ~ 6

Author(s):

Michael Dickinson ◽

Manali Kamdar ◽

Brian J.P Huntly ◽

Carlos Fernández De Larrea ◽

Raul Cordoba ◽

...

Keyword(s):

T Cell ◽

Board Of Directors ◽

Dose Level ◽

Research Funding ◽

Cell Lymphoma ◽

Single Agent ◽

Study Drug ◽

T Cell Lymphoma ◽

Advisory Committees ◽

Bet Inhibitor

Abstract BACKGROUND: Patients with relapsed and/or refractory non-Hodgkin's lymphoma (NHL), especially those with aggressive lymphomas, have overall poor prognosis. Novel targets and therapies are under investigation. Molibresib (GSK525762) is a potent and specific inhibitor of the bromodomain and extraterminal domain (BET) family of proteins, the inhibition of which prevents transcriptional complex assembly and the subsequent expression of oncogenic drivers. Molibresib inhibits growth in NHL cell lines, both in vitro and in vivo. Study BET116183 was designed to evaluate the safety, tolerability, and preliminary efficacy of molibresib in relapsed and refractory hematologic malignancies. Here we report the results from the NHL dose escalation cohort. METHODS: Eligible subjects were adults with relapsed or refractory NHL. An accelerated dose titration was employed with one subject per dose level until the occurrence of a ≥Grade 2 drug-related toxicity; thereafter, subjects were enrolled in a standard 3+3 design. A Neuenschwander continual reassessment method (N-CRM) model was used to provide guidance for the next dose level. Dose escalation continued until the maximum tolerated dose (MTD) was identified. All data, including safety, tolerability, pharmacokinetics (PK), and efficacy, were used to identify the recommended part 2 dose (RP2D). RESULTS: From 14 May 2014 to the data cutoff date of 24 June 2018, 27 NHL subjects were enrolled and received at least one dose of study drug. Of these, 19 (70%) had B-cell lymphomas (diffuse large B-cell lymphoma [DLBCL], mantle cell lymphoma, marginal zone lymphoma, follicular lymphoma , and Burkitt's lymphoma); eight subjects (30%) had T-cell lymphomas (cutaneous T-cell lymphoma [CTCL], anaplastic T-cell lymphoma [ATCL], peripheral T-cell lymphoma, and adult T-cell leukemia/lymphoma). The median age was 64 years (range 24 to 76); 20 subjects (76%) were male and 7 subjects (24%) were female. The median number of prior treatments was 3 (range 1 to > 4). From the starting dose of 10 mg molibresib orally once daily (QD), the dose was escalated to 80 mg QD. The median time on study was 1.4 months (range 0.2 to 20 months). Two dose-limiting toxicities (DLTs) were identified in subjects treated at 60 mg QD, though one was subsequently determined not to be a DLT. One subject experienced Grade 4 thrombocytopenia related to study drug. A second subject experienced a Grade 2 mechanical fall; this event was later revised to unrelated to study drug. Across all dose levels, all subjects experienced an adverse event (AE); 25 subjects (93%) experienced at least one AE that was deemed to be related to molibresib treatment. The most common related AEs across all dose levels were thrombocytopenia (n = 21 [78%]), fatigue (n = 6 [22%]), nausea (n = 6 [22%]), diarrhea (n = 4 [15%]), and rash (n = 4 [15%]). Blood bilirubin was increased in 3 subjects (11%), and prothrombin time and activated partial thromboplastin time were prolonged in 2 subjects each (7%). Common Grade 3 and Grade 4 related events included thrombocytopenia (n = 19 [70%]), as well as anemia, asthenia, and increased blood bilirubin (n = 2 [7%] each). No Grade 5 related AEs were reported. Among all subjects, 11 (41%) required dose reduction for toxicity: 7 subjects at the 60 mg dose level (39% treated at that dose) and 4 at the 80 mg dose level (57% treated at that dose). PK analyses showed dose-proportionality after single and repeat dosing, with large variability between subjects. One subject with DLBCL achieved a complete remission that was durable through week 54 on study. Four additional subjects (one DLBCL and 3 CTCL) achieved partial remission, for an objective response rate (ORR) of 5/27 (18.5%). Five more subjects had stable disease as best response. Of six CTCL/ATCL subjects enrolled, three subjects had partial response for an ORR of 50% in this sub-population. CONCLUSIONS: This is the first study evaluating the safety and efficacy of the BET inhibitor molibresib in NHL subjects. Overall, thrombocytopenia and other AEs were monitorable, manageable and reversible. The RP2D was identified as 60 mg QD. Single-agent activity was observed across multiple NHL subtypes at both 60 mg and 80 mg doses; most notable was a 50% response rate in subjects with CTCL. Because of the promising data, Part 2 of the BET116183 study is currently open and enrolling subjects with CTCL to better define the clinical activity of BET bromodomain inhibition in this histology. Disclosures Dickinson: GSK: Consultancy. Kamdar:Genentech: Consultancy; Seattle Genetics: Speakers Bureau. Mateos:Janssen: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; GSK: Consultancy, Membership on an entity's Board of Directors or advisory committees; Amgen: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; GSK: Consultancy, Membership on an entity's Board of Directors or advisory committees; Amgen: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Takeda: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Celgene: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Abbvie: Consultancy, Membership on an entity's Board of Directors or advisory committees. Alegre:Janssen: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees; Takeda: Membership on an entity's Board of Directors or advisory committees; Amgen: Membership on an entity's Board of Directors or advisory committees. Kim:Roche: Research Funding; Mundipharma: Research Funding; J&J: Research Funding; Novartis: Research Funding; Kyowa-Kirin: Research Funding; Celltrion: Research Funding; Takeda: Research Funding. Martín:Janssen: Honoraria, Other: Travel expenses; Celgene: Consultancy, Honoraria, Other: Travel expenses; Roche: Consultancy, Honoraria, Other: Travel expenses; Servier: Honoraria, Other: Travel expenses. Horner:GSK: Employment. Winnberg:GSK: Employment. Mathew:GSK: Employment. Botbyl:GSK: Employment. Karpinich:GSK: Employment. Kremer:GSK: Employment. Dhar:GSK: Employment. Karadimitris:GSK: Research Funding; Gilead: Honoraria; Celgene: Research Funding.

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Outcomes of Patients with Refractory Peripheral T-Cell Lymphoma, Angioimmunoblastic and Other Nodal Lymphomas of T Follicular Helper-Cell Origin (OPerA)

Blood ◽

10.1182/blood-2019-124447 ◽

2019 ◽

Vol 134 (Supplement_1) ◽

pp. 2854-2854

Author(s):

Joanna M Rhodes ◽

Suchitra Sundaram ◽

Adam Zayac ◽

Adam J Olszewski ◽

Paolo Caimi ◽

...

Keyword(s):

T Cell ◽

Board Of Directors ◽

Salvage Therapy ◽

Research Funding ◽

Cell Lymphoma ◽

Single Agent ◽

Initial Therapy ◽

T Cell Lymphoma ◽

Advisory Committees ◽

Line Therapy

Introduction: T cell lymphomas are heterogenous with an overall poor prognosis. Peripheral T cell lymphoma not otherwise specified (PTCL-NOS) and angioimmunoblastic T cell lymphoma (AITL) are the two most common subtypes in the US accounting for 45% of diagnoses. Based on overlapping recurrent molecular and cytogenetic abnormalities, the WHO created an umbrella category of nodal T-cell lymphomas with T-follicular helper phenotype (TFH lymphoma), which includes AITL and PTCL with TFH phenotype (Swerdlow SH, et al. Blood. 2016). 25-30% of patients (pts) are refractory to initial therapy and even amongst responders to initial therapy, relapse is common. Survival after relapse or progression (R/P) is typically measured only in months. Outcomes have not changed significantly even with the introduction of several new agents in the last 10 years (Chihara D, et al. Br J Haematol. 2017). There remains no standard 2nd line therapy or guidance on sequencing of therapies as interpretation of clinical data in T-cell lymphoma is frequently hampered by the heterogeneity of the patient population and small sample size. The aim of our study was to determine outcomes in a large, well-defined group of pts with either primary refractory PTCL-NOS or TFH lymphoma. Methods: We performed a multi-center retrospective study to determine outcomes to 2nd line therapy for adult pts diagnosed between 1.1.09-6.30.18 with PTCL-NOS or TFH lymphoma, who were primary refractory defined by either induction failure, less than CR to initial therapy, or relapse within 6 months (mo) of completion of initial therapy. We performed time to event analysis using Kaplan-Meier method and compared groups using log-rank test. All other statistics were descriptive. Results: Patient and disease characteristics at diagnosis and relapse are summarized in Table 1. We identified 80 eligible pts from 7 US academic centers. Median FU was 17.2 mo from diagnosis (0.5-70). Overall, pts had mostly advanced stage with multiple high-risk features including bone marrow (BM) or extranodal (EN) involvement and B symptoms at diagnosis and R/P. Most pts received CHOP (52%) or CHOEP (24%) as initial therapy. 60% of patients did not attain a CR, while 40% of pts relapsed after initial CR.14% had received a consolidative transplant in 1st CR prior to relapse (almost all autologous hematopoietic cell transplant [HCT]). At R/P, 48% received single agent therapy [mostly romidepsin (15/38)], while 36% received multi-agent salvage therapy [mostly ICE (9/29)]. 13/80 pts were placed on hospice or only received local therapy after R/P. Median OS from diagnosis and following R/P was 19 mo/12.9 mo respectively. Median PFS2 (defined as time from 2nd line therapy to 2nd progression) for pts receiving systemic therapy was 73 days (d) (range 41-175). On univariate and multivariate analysis, there was no significant difference in PFS2 by histologic subtype (74 d for PTCL and 73 d for TFH lymphoma; p=0.29), platelet count <150,000 (75 d vs 59 d; p=0.37), presence of B symptoms at R/P (78 d vs. 63 d, p=.16), ECOG PS ≥2 (75 d vs 57 d, p=0.62), elevated LDH (63 d vs 75 d, p=0.31) and EN disease at R/P (59 d vs 75 d, p=0.72). There was a trend towards longer PFS2 with single agent salvage therapy compared to combination salvage therapy (97 d vs. 51 d; p=0.09). There was no statistically significant difference in survival if pts had relapsed disease or induction failure (75 d vs. 50 d, p=0.97). Although numerically longer, OS did not differ statistically if pts underwent HCT as consolidation after 2nd line therapy (allogeneic HCT 29.1 mo, autologous HCT 48.5 mo vs. 16.1mo for no HCT; p=0.61, n=8). Median number of therapies after salvage was 1 (range 1-6). Conclusions: Outcomes in this large, well-defined population of primary refractory PTCL-NOS and TFH lymphoma were poor, but better compared to most other retrospective series in R/R T-cell lymphoma. EN disease and advanced stage were common in this cohort of primary refractory pts. Relapse after HCT in CR1 had a particularly poor prognosis. Our findings suggest that single agent therapy following R/P in primary refractory pts and transplant may be beneficial, though our statistical power was limited due to small sample size. In a next step, we plan to expand the cohort and perform genetic/molecular characterization of available biospecimens following central pathology review. Disclosures Rhodes: DAVA Oncology: Honoraria. Olszewski:Spectrum Pharmaceuticals: Research Funding; Genentech: Research Funding; Adaptive Biotechnologies: Research Funding; TG Therapeutics: Research Funding. Brammer:Verastem, Inc: Research Funding; Viracta Therapeutics, Inc.: Research Funding; Bioniz Therapeutics, Inc.: Research Funding. Ghosh:TG Therapeutics: Consultancy, Honoraria, Research Funding; Celgene: Consultancy, Research Funding; Janssen: Consultancy, Honoraria, Research Funding, Speakers Bureau; Forty Seven Inc: Research Funding; AstraZeneca: Honoraria, Speakers Bureau; Pharmacyclics LLC, an AbbVie Company: Consultancy, Honoraria, Research Funding, Speakers Bureau; Genentech: Research Funding; SGN: Consultancy, Honoraria, Research Funding, Speakers Bureau; Bristol-Myers Squibb: Honoraria, Speakers Bureau; Gilead: Consultancy, Honoraria, Speakers Bureau. Dwivedy Nasta:Merck: Membership on an entity's Board of Directors or advisory committees; Roche: Research Funding; 47 (Forty Seven): Research Funding; Rafael: Research Funding; Celgene: Honoraria; ATARA: Research Funding; Aileron: Research Funding; Debiopharm: Research Funding; Millenium/Takeda: Research Funding; Pharmacyclics: Research Funding. Barta:Celgene: Research Funding; Janssen: Membership on an entity's Board of Directors or advisory committees; Mundipharma: Honoraria; Seattle Genetics: Honoraria, Research Funding; Takeda: Research Funding; Celgene: Research Funding; Janssen: Membership on an entity's Board of Directors or advisory committees; Bayer: Consultancy, Research Funding; Mundipharma: Honoraria; Merck: Research Funding.

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Belinostat Induces High Overall Response Rate (ORR) in Patients with Relapsed or Refractory Angioimmunoblastic T-Cell Lymphoma (AITL)

Blood ◽

10.1182/blood-2019-127155 ◽

2019 ◽

Vol 134 (Supplement_1) ◽

pp. 4050-4050

Author(s):

Ahmed Sawas ◽

Helen Ma ◽

Andrei Shustov ◽

Pamela Hsu ◽

Gajanan Bhat ◽

...

Keyword(s):

T Cell ◽

Board Of Directors ◽

Research Funding ◽

Overall Response Rate ◽

Response Rate ◽

Cell Lymphoma ◽

Single Agent ◽

T Cell Lymphoma ◽

Advisory Committees ◽

Overall Response

Background: Angioimmunoblastic T-cell lymphoma (AITL) is a relatively common subtype of peripheral T-cell lymphoma (PTCL) that typically presents with lymphadenopathy, extranodal disease, including rash, and is associated with frequent infections due to immune dysregulation. Patients with AITL generally have a poor prognosis, even with aggressive chemotherapy as responses to standard chemotherapy are often suboptimal. Recent advances in cancer biology suggest that AITL is derived from T-follicular helper cells and is often characterized by gross epigenetic dysregulation. Histone deacetylase (HDAC) inhibitors have demonstrated significant activity in T-cell neoplasms. The BELIEF trial established an overall response rate of 25% in patients with relapsed/refractory PTCL who were treated with belinostat, with a duration of response of about 1 year, leading to accelerated approval. Herein, we present a subset analysis of the data for patients with AITL. Methods: Patients with histologically confirmed PTCL (N = 129) who experienced failure with or refractory to ≥ 1 prior systemic therapy received belinostat 1,000 mg/m(2) as daily 30-minute infusions on days 1 to 5 every 21 days. Central assessment of response used International Working Group criteria. Primary endpoint was overall response rate (ORR). Secondary endpoints included duration of response (DoR) and progression-free and overall survival (PFS). Results: Of 129 patients, 22 patients had AITL; most had advanced disease (91% stage III/IV; 36% with bone marrow involvement). The median number of prior therapies was 2 (range, 1-5), and 3 (14%) patients were refractory to their last line of therapy. The ORR for patients with AITL was 46% (10/22; 95%CI: 24 - 68%), with a complete response (CR) in 4 of 22 patients (18%). Of the ten responders, the median time to response of 11.3 weeks (range, 4.7 - 24.4 weeks) in the AITL subgroup. After a median follow up of 21.5 months, the median PFS was 4.2 months (95%CI: 1.5 -13.9) and the median DOR was 13.6 months (95%CI: 1.4 - 29.4) as shown in Figure 1. For all patients with AITL treated with belinostat, the median OS was 9.2 months (95%CI: 6.8 - 21.5). The most common grade 3 to 4 adverse events were asthenia (n=2), fatigue (n=2), anemia (n=2), thrombocytopenia (n=2), neutropenia (n=2), and septic shock (n=2). Conclusions: Single-agent belinostat induced rapid and durable responses in patients with relapsed/refractory AITL. At the end of the study, there were 37% patients with ongoing responses at 2 years. Patients with clinical benefit from belinostat continued treatment until progression of disease. These results support the use of belinostat in relapsed/refractory AITL as a single agent and provide rationale for combination therapies in clinical trials. Disclosures Sawas: Seattle Genetics, Gilead, Daiichi Sanko: Consultancy; Affimed: Research Funding. Shustov:Spectrum Pharmaceuticals: Consultancy, Research Funding. Hsu:Spectrum Pharmaceuticals: Employment. Bhat:Spectrum Pharmaceuticals: Employment. Acosta:Acrotech Biopharma: Employment. Horwitz:Astex: Consultancy; Kyowa Hakko Kirin: Consultancy; Infinity/Verastem: Consultancy, Research Funding; Innate Pharma: Consultancy; Kyowa Hakko Kirin: Consultancy; Trillium: Research Funding; Affimed: Consultancy; ADCT Therapeutics: Research Funding; Kura: Consultancy; ADCT Therapeutics: Research Funding; Aileron: Research Funding; Seattle Genetics: Consultancy, Research Funding; Corvus Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Trillium: Research Funding; Aileron: Research Funding; Trillium: Research Funding; Miragen: Consultancy; Millennium/Takeda: Consultancy, Research Funding; Infinity/Verastem: Consultancy, Research Funding; Kura: Consultancy; Forty-Seven: Research Funding; Millennium/Takeda: Consultancy, Research Funding; ADCT Therapeutics: Research Funding; Mundipharma: Consultancy; Kura: Consultancy; Miragen: Consultancy; Corvus Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Mundipharma: Consultancy; Astex: Consultancy; Seattle Genetics: Consultancy, Research Funding; Astex: Consultancy; Portola: Consultancy; Celgene: Consultancy, Research Funding; Celgene: Consultancy, Research Funding; Infinity/Verastem: Consultancy, Research Funding; Aileron: Research Funding; Trillium: Research Funding; Forty-Seven: Research Funding; Infinity/Verastem: Consultancy, Research Funding; Innate Pharma: Consultancy; Miragen: Consultancy; Millennium/Takeda: Consultancy, Research Funding; Mundipharma: Consultancy; Portola: Consultancy; Mundipharma: Consultancy; Portola: Consultancy; Aileron: Research Funding; Forty-Seven: Research Funding; Kura: Consultancy; Kyowa Hakko Kirin: Consultancy; Seattle Genetics: Consultancy, Research Funding; Portola: Consultancy; ADCT Therapeutics: Research Funding; Corvus Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Astex: Consultancy; Innate Pharma: Consultancy; Kyowa Hakko Kirin: Consultancy; Miragen: Consultancy; Affimed: Consultancy; Affimed: Consultancy; Corvus Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene: Consultancy, Research Funding; Celgene: Consultancy, Research Funding; Innate Pharma: Consultancy; Seattle Genetics: Consultancy, Research Funding; Forty-Seven: Research Funding; Affimed: Consultancy; Millennium/Takeda: Consultancy, Research Funding. O'Connor:Mundipharma: Consultancy, Membership on an entity's Board of Directors or advisory committees; ADCT Therapeutics, Affimed, Agensys, Merck, Seattle Genetics, Spectrum, Trillium, and Verastem Oncology.: Research Funding; TG Therapeutics: Other: Travel Support, Research Funding; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding.

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Phase 2 study of E7777 in Japanese patients with relapsed/refractory peripheral and cutaneous T‐cell lymphoma

Cancer Science ◽

10.1111/cas.14906 ◽

2021 ◽

Author(s):

Hidetsugu Kawai ◽

Kiyoshi Ando ◽

Dai Maruyama ◽

Kazuhito Yamamoto ◽

Eiji Kiyohara ◽

...

Keyword(s):

T Cell ◽

Cell Lymphoma ◽

Japanese Patients ◽

T Cell Lymphoma ◽

Cutaneous T Cell Lymphoma ◽

Phase 2 ◽

Phase 2 Study

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Daratumumab monotherapy for patients with relapsed or refractory natural killer/T-cell lymphoma, nasal type: an open-label, single-arm, multicenter, phase 2 study

Journal of Hematology & Oncology ◽

10.1186/s13045-020-01020-y ◽

2021 ◽

Vol 14 (1) ◽

Author(s):

Huiqiang Huang ◽

Jun Zhu ◽

Ming Yao ◽

Tae Min Kim ◽

Dok Hyun Yoon ◽

...

Keyword(s):

T Cell ◽

Natural Killer ◽

Cell Lymphoma ◽

T Cell Lymphoma ◽

Phase 2 ◽

Nasal Type ◽

Natural Killer T Cell ◽

Phase 2 Study ◽

Duration Of Response ◽

Killer T Cell

Abstract Background Natural killer/T-cell lymphoma (NKTCL) is a disease with limited treatment options and poor outcomes. Daratumumab monotherapy demonstrated clinical activity in a single-patient case report. We present data from the primary analysis of a phase 2 study of daratumumab monotherapy in relapsed or refractory (R/R) NKTCL. Methods This phase 2 study with Simon’s two-stage design evaluated daratumumab in patients with histologically confirmed extranodal NKTCL, nasal type, per WHO classification that was refractory to or relapsed after ≥ 1 line of chemotherapy, who were not candidates for other treatment modalities. All patients received daratumumab 16 mg/kg intravenously once weekly for Cycles 1 and 2, every other week for Cycles 3 through 6, and every 4 weeks thereafter until progression or unacceptable toxicity; all cycles were 28 days. The primary end point was objective response rate (ORR) based on blinded independent central review per Revised Criteria for Response Assessment of Hodgkin and non-Hodgkin Lymphoma (Lugano classification). Results In total, 32 Asian patients received daratumumab. The ORR was 25.0% (95% confidence interval [CI] 11.5–43.4); all 8 responders had a partial response; and the median duration of response was 55.0 days (95% CI 29–339). At 10.2 months of median follow-up, median progression-free survival (PFS) was 53.0 days (95% CI 43–106); the 4-month PFS rate was 13.0%. Median overall survival (OS) was 141.0 days (95% CI 94–438); the 6-month OS rate was 42.9%. Nineteen (59.4%) patients had grade 3/4 treatment-emergent adverse events (TEAEs); the most common was thrombocytopenia (25.0%; n = 8). TEAEs leading to death occurred in 4 patients (death, respiratory failure, septic shock, and pneumonia); all were unrelated to daratumumab. Conclusions In patients with R/R NKTCL, daratumumab monotherapy was well tolerated with no new safety concerns and achieved an ORR of 25.0%. However, no patients achieved complete response, and duration of response was short. Trial registration ClinicalTrials.gov, NCT02927925. Registered 7 October 2016.

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