Browsing by Author "Zelenetz, Andrew D."

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    In Support of a Patient-Driven Initiative and Petition to Lower the High Price of Cancer Drugs
    (Elsevier, 2015-08) Tefferi, Ayalew; Kantarjian, Hagop; Rajkumar, S. Vincent; Baker, Lawrence H.; Abkowitz, Jan L.; Adamson, John W.; Advani, Ranjana Hira; Allison, James; Antman, Karen H.; Bast Jr., Robert C.; Bennett, John M.; Benz Jr., Edward J.; Berliner, Nancy; Bertino, Joseph; Bhatia, Ravi; Bhatia, Smita; Bhojwani, Deepa; Blanke, Charles D.; Bloomfield, Clara D.; Bosserman, Linda; Broxmeyer, Hal E.; Byrd, John C.; Cabanillas, Fernando; Canellos, George Peter; Chabner, Bruce A.; Chanan-Khan, Asher; Cheson, Bruce; Clarkson, Bayard; Cohn, Susan L.; Colon-Otero, Gerardo; Cortese, Jorge; Coutre, Steven; Cristofanilli, Massimo; Curran Jr., Walter J.; Daley, George Q.; DeAngelo, Daniel J.; Deeg, H. Joachim; Einhorn, Lawrence H.; Erba, Harry P.; Esteva, Francisco J.; Estey, Elihu; Fidler, Isaiah J.; Foran, James; Forman, Stephen; Freireich, Emil; Fuchs, Charles; George, James N.; Gertz, Morie A.; Giralt, Sergio; Golomb, Harvey; Greenberg, Peter; Gutterman, Jordan; Handin, Robert I.; Hellman, Samuel; Hoff, Paulo Marcelo; Hoffman, Ronald; Hong, Waun Ki; Horowitz, Mary; Hortobagyi, Gabriel N.; Hudis, Clifford; Issa, Jean Pierre; Johnson, Bruce Evan; Kantoff, Philip W.; Kaushansky, Kenneth; Khayat, David; Khuri, Fadlo R.; Kipps, Thomas J.; Kripke, Margaret; Kyle, Robert A.; Larson, Richard A.; Lawrence, Theodore S.; Levine, Ross; Link, Michael P.; Lippman, Scott M.; Lonial, Sagar; Lyman, Gary H.; Markman, Maurie; Mendelsohn, John; Meropol, Neal J.; Messinger, Yoav; Mulvey, Therese M.; O’Brien, Susan; Perez-Soler, Roman; Pollock, Raphael; Prchal, Josef; Press, Oliver; Radich, Jerald; Rai, Kanti; Rosenberg, Saul A.; Rowe, Jacob M.; Rugo, Hope; Runowicz, Carolyn D.; Sandmaier, Brenda M.; Saven, Alan; Schafer, Andrew I.; Schiffer, Charles; Sekeres, Mikkael A.; Silver, Richard T.; Siu, Lillian L.; Steensma, David P.; Stewart, F. Marc; Stock, Wendy; Stone, Richard; Storb, Rainer; Strong, Louise C.; Tallman, Martin S.; Thompson, Michael; Ueno, Naoto T.; Van Etten, Richard A.; Vose, Julie M.; Wiernik, Peter H.; Winer, Eric P.; Younes, Anas; Zelenetz, Andrew D.; Department of Medicine, IU School of Medicine
    Comment in Lowering the High Cost of Cancer Drugs--III. [Mayo Clin Proc. 2016] Lowering the High Cost of Cancer Drugs--I. [Mayo Clin Proc. 2016] Lowering the High Cost of Cancer Drugs--IV. [Mayo Clin Proc. 2016] In Reply--Lowering the High Cost of Cancer Drugs. [Mayo Clin Proc. 2016] US oncologists call for government regulation to curb drug price rises. [BMJ. 2015]
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    Zandelisib with continuous or intermittent dosing as monotherapy or in combination with rituximab in patients with relapsed or refractory B-cell malignancy: a multicentre, first-in-patient, dose-escalation and dose-expansion, phase 1b trial
    (Elsevier, 2022) Pagel, John M.; Soumerai, Jacob D.; Reddy, Nishitha; Jagadeesh, Deepa; Stathis, Anastasios; Asch, Adam; Salman, Huda; Kenkre, Vaishalee P.; Iasonos, Alexia; Llorin-Sangalang, Judith; Li, Joanne; Zelenetz, Andrew D.; Medicine, School of Medicine
    Background: Phosphatidylinositol 3-kinase p110δ (PI3Kδ) inhibitors are efficacious in B-cell malignancies. Immune-related adverse events might be mitigated with intermittent dosing. We aimed to evaluate the safety and antitumour activity of zandelisib, a potent novel PI3Kδ inhibitor, with continuous or intermittent dosing as monotherapy or in combination with rituximab, in patients with relapsed or refractory B-cell malignancy. Methods: We conducted a first-in-patient, dose-escalation and dose-expansion, phase 1b trial at ten treatment centres across Switzerland and the USA. Eligible patients were aged 18 years or older with relapsed or refractory B-cell malignancy (limited to follicular lymphoma or chronic lymphocytic leukaemia during dose escalation) and an Eastern Cooperative Oncology Group performance status of 0-2, and had received at least one previous line of therapy and no previous PI3Kδ inhibitor treatment. In the dose-escalation study, participants received oral zandelisib once daily (60 mg, 120 mg, or 180 mg; we did not evaluate four additional planned dose levels). The 60 mg dose was further evaluated as monotherapy or with intravenous rituximab 375 mg/m2 on days 1, 8, 15, and 22 of cycle 1 and day 1 of cycles 3-6, using a continuous daily schedule or intermittent dosing therapy (days 1-28 of cycles 1-2 and days 1-7 of subsequent cycles) in 28-day cycles. Treatment was continued until evidence of disease progression, intolerance, or withdrawal of consent by the patient. Primary endpoints were safety (dose-limiting toxicities and maximum tolerated dose), minimum biologically effective dose, and a composite endpoint to assess the activity of each dose level, and were analysed by intention to treat. The zandelisib monotherapy and zandelisib-rituximab combination cohorts have completed accrual, but accrual to a cohort evaluating zandelisib with zanubrutinib is ongoing. This study is registered with ClinicalTrials.gov, NCT02914938. Findings: Between Nov 17, 2016, and June 2, 2020, 100 patients were assessed for eligibility and 97 were enrolled and received zandelisib monotherapy (n=56) or zandelisib plus rituximab (n=41), with zandelisib administered on either a continuous schedule (n=38) or with intermittent dosing (n=59). No dose-limiting toxicities were observed, the objective of determining the maximum tolerated dose was abandoned, and antitumour activity was similar across the evaluated doses activity (objective responses in 11 [92%; 95% CI 61·5-99·8] of 12 patients at both 60 mg and 120 mg doses, and in five [83%; 95% CI 35·9-99·6] of six patients at 180 mg). With a median duration of exposure of 15·2 months (IQR 3·7-21·7), the most common grade 3-4 adverse events were neutrophil count decrease (ten [17%] of 59 patients in the intermittent dosing group and four [11%] of 38 in the continuous dosing group), diarrhoea (three [5%] and eight [21%]), pneumonia (one [2%] and six [16%]), alanine aminotransferase increase (three [5%] and two [5%]), and colitis (two [3%] and one [3%]). 26 (44%) of 59 patients in the intermittent dosing group and 29 (76%) of 38 patients in the continuous dosing group had grade 3-4 adverse events. Treatment-related serious adverse events occurred in eight (21%) patients in the continuous dosing group and five (8%) patients in the intermittent dosing group. There were no treatment-related deaths. Interpretation: Zandelisib 60 mg once daily on an intermittent dosing schedule was safe, with low frequency of grade 3 or worse adverse events, warranting the ongoing global phase 2 and phase 3 trials.