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Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cancer+Chemother+Pharmacol 2017 ; 79 (4): 673-80 Nephropedia Template TP
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A Phase 1 Study of Anti-TGF? Receptor Type-II Monoclonal Antibody LY3022859 in Patients with Advanced Solid Tumors #MMPMID28280971
Cancer Chemother Pharmacol 2017[Apr]; 79 (4): 673-80 PMID28280971show ga
Purpose: LY3022859 is an anti-TGF?RII IgG1 monoclonal antibody that inhibits receptor-mediated signaling activation. The primary objective of this phase I study was to determine a phase II dose in patients with advanced solid tumors. Secondary objectives were to assess safety and pharmacokinetics (PK). Methods: LY3022859 was infused intravenously (IV) at 1.25 mg/kg over 1 hour every 2 weeks (Q2W) (cohort 1A) and at flat doses of 12.5 mg (cohort 1B) and 25 mg (cohort 2) over 3 hours Q2W. Results: Fourteen patients were enrolled in cohorts 1A (n=2), 1B (n=5), and 2 (n=7). DLTs were experienced by both patients in cohort 1A (infusion-related reaction) and 2 patients in cohort 2 (cytokine release syndrome and infusion-related reaction). No MTD was determined. At the 25 mg dose level (cohort 2), after fifth infusion, LY3022859 had a short t1/2 (4.37?7.80 hours) and rapid clearance (CLss, 0.412 L/hr). Exposure increased 2-fold (from 28.5 ?g·hr/mL to 60.2 ?g·hr/mL) with increase in dose from 12.5 mg to 25 mg. No accumulation was observed after repeat administration. Conclusions: The MTD for LY3022859 was not determined. Dose escalation beyond 25 mg was considered unsafe due to worsening symptoms (uncontrolled cytokine release) despite prophylaxis (corticosteroids, antihistamines).