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Djureinovic D, Weiss SA, Krykbaeva I, Qu R, Vathiotis I, Moutafi M, Zhang L, Perdigoto AL, Wei W, Anderson G, Damsky W, Hurwitz M, Johnson B, Schoenfeld D, Mahajan A, Hsu F, Miller-Jensen K, Kluger Y, Sznol M, Kaech SM, Bosenberg M, Jilaveanu LB, Kluger HM. A bedside to bench study of anti-PD-1, anti-CD40, and anti-CSF1R indicates that more is not necessarily better. Mol Cancer 2023; 22:182. [PMID: 37964379 PMCID: PMC10644655 DOI: 10.1186/s12943-023-01884-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 10/19/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Stimulating inflammatory tumor associated macrophages can overcome resistance to PD-(L)1 blockade. We previously conducted a phase I trial of cabiralizumab (anti-CSF1R), sotigalimab (CD40-agonist) and nivolumab. Our current purpose was to study the activity and cellular effects of this three-drug regimen in anti-PD-1-resistant melanoma. METHODS We employed a Simon's two-stage design and analyzed circulating immune cells from patients treated with this regimen for treatment-related changes. We assessed various dose levels of anti-CSF1R in murine melanoma models and studied the cellular and molecular effects. RESULTS Thirteen patients were enrolled in the first stage. We observed one (7.7%) confirmed and one (7.7%) unconfirmed partial response, 5 patients had stable disease (38.5%) and 6 disease progression (42.6%). We elected not to proceed to the second stage. CyTOF analysis revealed a reduction in non-classical monocytes. Patients with prolonged stable disease or partial response who remained on study for longer had increased markers of antigen presentation after treatment compared to patients whose disease progressed rapidly. In a murine model, higher anti-CSF1R doses resulted in increased tumor growth and worse survival. Using single-cell RNA-sequencing, we identified a suppressive monocyte/macrophage population in murine tumors exposed to higher doses. CONCLUSIONS Higher anti-CSF1R doses are inferior to lower doses in a preclinical model, inducing a suppressive macrophage population, and potentially explaining the disappointing results observed in patients. While it is impossible to directly infer human doses from murine studies, careful intra-species evaluation can provide important insight. Cabiralizumab dose optimization is necessary for this patient population with limited treatment options. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03502330.
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Affiliation(s)
- Dijana Djureinovic
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - Sarah A Weiss
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - Irina Krykbaeva
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Rihao Qu
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Ioannis Vathiotis
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Myrto Moutafi
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Lin Zhang
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - Ana L Perdigoto
- Department of Internal Medicine, Yale University, New Haven, CT, USA
| | - Wei Wei
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - Gail Anderson
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - William Damsky
- Department of Dermatology, Yale University School of Medicine, New Haven, CT, USA
| | - Michael Hurwitz
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - Barbara Johnson
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - David Schoenfeld
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - Amit Mahajan
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA
| | | | - Kathryn Miller-Jensen
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
- Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT, USA
- Systems Biology Institute, Yale University, New Haven, CT, USA
| | - Yuval Kluger
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Mario Sznol
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - Susan M Kaech
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute, La Jolla, CA, USA
| | - Marcus Bosenberg
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
- Department of Dermatology, Yale University School of Medicine, New Haven, CT, USA
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Lucia B Jilaveanu
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA
| | - Harriet M Kluger
- Department of Medicine (Medical Oncology), Yale University School of Medicine, 333 Cedar Street, WWW211B, New Haven, CT, 06520, USA.
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