Study of TSR-042, an Anti-programmed Cell Death-1 Receptor (PD-1) Monoclonal Antibody, in Participants With Advanced Solid Tumors

Summary

This is a multi-center, open-label, first-in-human Phase 1 study evaluating the anti-programmed death receptor 1 (anti-PD-1) antibody dostarlimab (also known as TSR-042) n participants with advanced solid tumors who have limited available treatment options. The study will be conducted in 2 parts with Part 1 consisting of safety evaluation, pharmacokinetics (PK), and pharmacodynamics (PDy) of escalating doses of dostarlimab. Dose escalation will be based on ascending weight-based dose levels (DLs) of dostarlimab and will continue until the maximum tolerated dose (MTD) is reached or may be stopped at any dose level up to the highest dose of 20 milligrams per kilograms (mg/kg) based on emerging safety and PK/PDy data. Part 2 will be conducted in two subparts, Part 2A (fixed-dose safety evaluation cohorts) and Part 2B (expansion cohorts). Part 2A of the study will evaluate the safety and tolerability of dostarlimab at fixed doses of 500 mg administered every 3 weeks (Q3W) and 1000 mg administered every 6 weeks (Q6W). Part 2B of the study will examine the safety and clinical activity of dostarlimab in cohorts of participants with specific types of advanced solid tumors.

Timeline

Start

2016-03-07

Primary completion

2026-05-18

Completion

2027-01-25

Publications

• Background Patnaik A, Weiss GJ, Rasco DW, Blaydorn L, Mirabella A, Beeram M, Guo W, Lu S, Danaee H, McEachern K, Im E, Sachdev JC. Safety, antitumor activity, and pharmacokinetics of dostarlimab, an anti-PD-1, in patients with advanced solid tumors: a dose-escalation phase 1 trial. Cancer Chemother Pharmacol. 2022 Jan;89(1):93-103. doi: 10.1007/s00280-021-04358-3. Epub 2021 Nov 8.
• Background Zhang XT, Chen H, Shao W, Zhongping JL, Melham M, Lu S.A Competitive Ligand Binding Assay to Measure Antidrug Antibodies Against Dostarlimab (TSR-042).2021; DOI: 10.1186/s41120-021-00039-w
• Background Patterson M, Beausang LA, Rup B, Bowsher R, Krug K, Gunn G, Melham M, Lu S.A Bridging Assay for Detection and Characterization of Anti-Drug Antibodies to Dostarlimab, a New Anti-PD-1 Therapeutic Monoclonal Antibody .2021;7(11) DOI: DOI 10.1186/s41120-021-00045-y
• Background Kumar S, Ghosh S, Sharma G, Wang Z, Kehry MR, Marino MH, Neben TY, Lu S, Luo S, Roberts S, Ramaswamy S, Danaee H, Jenkins D. Preclinical characterization of dostarlimab, a therapeutic anti-PD-1 antibody with potent activity to enhance immune function in in vitro cellular assays and in vivo animal models. MAbs. 2021 Jan-Dec;13(1):1954136. doi: 10.1080/19420862.2021.1954136.
• Background Oaknin A, Gilbert L, Tinker AV, Brown J, Mathews C, Press J, Sabatier R, O'Malley DM, Samouelian V, Boni V, Duska L, Ghamande S, Ghatage P, Kristeleit R, Leath C III, Guo W, Im E, Zildjian S, Han X, Duan T, Veneris J, Pothuri B. Safety and antitumor activity of dostarlimab in patients with advanced or recurrent DNA mismatch repair deficient/microsatellite instability-high (dMMR/MSI-H) or proficient/stable (MMRp/MSS) endometrial cancer: interim results from GARNET-a phase I, single-arm study. J Immunother Cancer. 2022 Jan;10(1):e003777. doi: 10.1136/jitc-2021-003777.
• Background Kristeleit R, Mathews C, Redondo A, Boklage S, Hanlon J, Im E, Brown J. Patient-reported outcomes in the GARNET trial in patients with advanced or recurrent mismatch repair-deficient/microsatellite instability-high endometrial cancer treated with dostarlimab. Int J Gynecol Cancer. 2022 Oct 3;32(10):1250-1257. doi: 10.1136/ijgc-2022-003492.
• Background Kuchimanchi M, Dabrowski C, Lu S, Melhem M. Dostarlimab, an anti-programmed death-1 monoclonal antibody, does not cause QT prolongation in patients with solid tumours: A concentration-QT analysis. Br J Clin Pharmacol. 2023 Jul;89(7):2272-2282. doi: 10.1111/bcp.15700. Epub 2023 Mar 20.
• Andre T, Berton D, Curigliano G, Sabatier R, Tinker AV, Oaknin A, Ellard S, de Braud F, Arkenau HT, Trigo J, Gravina A, Kristeleit R, Moreno V, Abdeddaim C, Vano YA, Samouelian V, Miller R, Boni V, Torres AA, Gilbert L, Brown J, Dewal N, Dabrowski C, Antony G, Zografos E, Veneris J, Banerjee S. Antitumor Activity and Safety of Dostarlimab Monotherapy in Patients With Mismatch Repair Deficient Solid Tumors: A Nonrandomized Controlled Trial. JAMA Netw Open. 2023 Nov 1;6(11):e2341165. doi: 10.1001/jamanetworkopen.2023.41165.
• Rodrigues M, Eberst L, Follana P, Gauthier L, Jacquemin V, Tessier C, El Mouaddin N, Boudier P, Fiteni F, Angeli E, Roche S, Delanoy N, Sabatier R, Flippot R, de la Motte Rouge T. Real-world dostarlimab use in advanced/recurrent endometrial cancer in France. Bull Cancer. 2023 Oct;110(10):1041-1050. doi: 10.1016/j.bulcan.2023.06.009. Epub 2023 Aug 31.
• Oaknin A, Pothuri B, Gilbert L, Sabatier R, Brown J, Ghamande S, Mathews C, O'Malley DM, Kristeleit R, Boni V, Gravina A, Banerjee S, Miller R, Pikiel J, Mirza MR, Dewal N, Antony G, Dong Y, Zografos E, Veneris J, Tinker AV. Safety, Efficacy, and Biomarker Analyses of Dostarlimab in Patients with Endometrial Cancer: Interim Results of the Phase I GARNET Study. Clin Cancer Res. 2023 Nov 14;29(22):4564-4574. doi: 10.1158/1078-0432.CCR-22-3915.
• Moreno V, Roda D, Pikiel J, Trigo J, Bosch-Barrera J, Drew Y, Kristeleit R, Hiret S, Bajor DL, Cruz P, Beck JT, Ghosh S, Dabrowski C, Antony G, Duan T, Veneris J, Zografos E, Subramanian J. Safety and Efficacy of Dostarlimab in Patients With Recurrent/Advanced Non-small Cell Lung Cancer: Results from Cohort E of the Phase I GARNET Trial. Clin Lung Cancer. 2022 Nov;23(7):e415-e427. doi: 10.1016/j.cllc.2022.05.013. Epub 2022 May 23.
• Oaknin A, Tinker AV, Gilbert L, Samouelian V, Mathews C, Brown J, Barretina-Ginesta MP, Moreno V, Gravina A, Abdeddaim C, Banerjee S, Guo W, Danaee H, Im E, Sabatier R. Clinical activity and safety of the anti-PD-1 monoclonal antibody dostarlimab for patients with recurrent or advanced dMMR endometrial cancer. Future Oncol. 2021 Oct 1;17(29):3781-3785. doi: 10.2217/fon-2021-0598. Epub 2021 Aug 24.
• Oaknin A, Tinker AV, Gilbert L, Samouelian V, Mathews C, Brown J, Barretina-Ginesta MP, Moreno V, Gravina A, Abdeddaim C, Banerjee S, Guo W, Danaee H, Im E, Sabatier R. Clinical Activity and Safety of the Anti-Programmed Death 1 Monoclonal Antibody Dostarlimab for Patients With Recurrent or Advanced Mismatch Repair-Deficient Endometrial Cancer: A Nonrandomized Phase 1 Clinical Trial. JAMA Oncol. 2020 Nov 1;6(11):1766-1772. doi: 10.1001/jamaoncol.2020.4515.

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Indications