Abstract
Purpose
To investigate camidanlumab tesirine (Cami) exposure–response (E–R) relationships, using an integrated population pharmacokinetic model, for patients with classical Hodgkin lymphoma (cHL) and non-Hodgkin lymphoma enrolled in an open-label, phase 1 study (NCT02432235).
Methods
Exploratory analyses investigated relationships between exposure measures (Cmaxss, Cminss, and Cavgss) and the occurrence of binary variables (overall response rate [ORR] and selected adverse events [AEs]) and nonbinary variables (overall survival [OS]).
Results
Exploratory analyses showed a significant, positive relationship between exposure and ORR/OS. The final model showed this effect was non-significant due to the covariate effects. Cami exposures were higher in patients with selected grade ≥ 2 AEs at cycle 6 (the anticipated steady-state exposure level), confirmed in the final E–R models.
Conclusions
Based on univariate results, Cmaxss was used as the exposure measure in all models, except for the autoimmune AE full E–R model in which Cavgss was used. The positive relationship between exposure and ORR/OS (higher exposure significantly associated with higher probabilities of ORR/OS) was not statistically significant in the final models. The final safety E–R models demonstrated a significant positive association between Cami exposure and selected grade ≥ 2 AEs, with higher exposures associated with higher probabilities of experiencing the grade ≥ 2 AEs at cycle 6. The results identify preliminary predictors of efficacy and safety and provide a basis for a dosing rationale and benefit–risk profile of Cami in patients with relapsed/refractory cHL.
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Data availability statement
Summary trial information for study NCT02432235 is available online. Requests regarding data collected for the study should be sent to clinical.trials@adctherapeutics.com.
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Acknowledgements
Medical writing support was provided by Claire Line, PhD, on behalf of CiTRUS Health Group, which was in accordance with Good Publication Practice (GPP3) guidelines. This support was funded by ADC Therapeutics SA.
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This study was funded by ADC Therapeutics SA.
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M Toukam and J Boni are currently employed and current equity holders at ADC Therapeutics America, Inc., a publicly traded company. M Hamadani reports consultancy with Janssen R&D, Incyte Corporation, ADC Therapeutics, Celgene Corporation, Pharmacyclics, Omeros, AbGenomics, Verastem, TeneoBio, SeaGen, GenMab, Novartis, and Kite; membership on an entity’s board of directors or advisory committees for ADC Therapeutics; research funding from Takeda Pharmaceutical Company, Spectrum Pharmaceuticals, and Astellas Pharma; and speakers bureau memberships for Sanofi Genzyme, AstraZeneca, BeiGene, and Kite Pharma. PF Caimi reports advisory board memberships for Amgen, Bayer, Kite Pharma, ADC Therapeutics, Novartis, and Genentech; research funding for ADC Therapeutics and Genentech; and speakers bureau membership for Celgene. HG Cruz and J Wuerthner are currently employed and current equity holders at ADC Therapeutics SA, a publicly traded company.
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Toukam, M., Boni, J.P., Hamadani, M. et al. Exposure–response analysis of Camidanlumab tesirine in patients with relapsed or refractory classical Hodgkin lymphoma and non-Hodgkin lymphoma. Cancer Chemother Pharmacol 91, 1–12 (2023). https://doi.org/10.1007/s00280-022-04487-3
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DOI: https://doi.org/10.1007/s00280-022-04487-3