ArticleClinical cancer research : an official journal of the American Association for Cancer Research2024
Safety, Pharmacokinetics, Pharmacodynamics, and Antitumor Activity from a Phase I Study of Simlukafusp Alfa (FAP-IL2v) in Advanced/Metastatic Solid Tumors.
Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02627274 (An Open-Label, Multicenter, Dose-Escalation, Phase Ia/Ib Study to Evaluate Safety, Pharmacokinetics, and Therapeutic Activity of RO6874281, an Immunocytokine Consisting of Interleukin 2 Variant), which is not on this map. Cited by 21 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
An Open-Label, Multicenter, Dose-Escalation, Phase Ia/Ib Study to Evaluate Safety, Pharmacokinetics, and Therapeutic Activity of RO6874281, an Immunocytokine Consisting of Interleukin 2 Variant (IL-2v) Targeting Fibroblast Activation Protein-α (FAP), as a Single Agent (Part A) or in Combination With Trastuzumab or Cetuximab (Part B or C)
Who cites it
21 citing papers in PubMed, 22 citations in OpenAlex.
- Simlukafusp alfa (FAP-IL2v) plus atezolizumab with or without bevacizumab in unresectable, metastatic renal cell carcinoma: a randomized, open-label phase Ib study.Journal for immunotherapy of cancer · 2026Trial
- Atezolizumab and motixafortide, cobimetinib or simlukafusp alfa in pretreated advanced pancreatic cancer: phase I/IIb MORPHEUS-PDAC umbrella study.The oncologist · 2026Trial
- Trial
- Targeting cancer-associated fibroblasts: therapeutic strategies, translational challenges, and future perspectives.Journal of hematology & oncology · 2026Review
- Cytokine fusion proteins for solid tumor therapy: mechanistic insights and clinical advances.Journal of hematology & oncology · 2026Review
- Spatial ecotype in tumor immune exclusion: from spatial architecture to therapeutic strategies.Molecular cancer · 2026Review
- Article
- Immuno-cytotoxic convergence: integrating antibody‒drug conjugates and immunofusion proteins to overcome resistance in gastrointestinal cancers.Journal of hematology & oncology · 2026Review
- Cergutuzumab Amunaleukin in Combination with Atezolizumab in Patients with Carcinoembryonic Antigen-Positive Advanced/Metastatic Solid Tumors.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026Article
- Modeling CAF-tumor interactions to overcome therapy resistance.Journal of experimental & clinical cancer research : CR · 2026Review
- The Spatiotemporal Heterogeneity of Tumor-Associated Stromal Cells: Reprogramming Plasticity to Unlock Precision Cancer Immunotherapy.Cancer communications (London, England) · 2026Review
- Immunocytokines in cancer: a safety perspective.Frontiers in immunology · 2026Review
- Hotspots and frontiers of the relationship between hepatocellular carcinoma and cancer-associated fibroblasts: a bibliometric analysis and review.Discover oncology · 2025Article
- Cancer-associated fibroblasts in the tumor microenvironment: heterogeneity, crosstalk mechanisms, and therapeutic implications.Molecular cancer · 2025Review
- Current landscape and future prospects of interleukin-2 receptor (IL-2R) agonists in cancer immunotherapy.Oncoimmunology · 2025Review
- Crosstalk between heterogeneous cancer-associated fibroblast subpopulations and the immune system in breast cancer: key players and promising therapeutic targets.Journal of experimental & clinical cancer research : CR · 2025Review
- Siglec-15 antibody-GM-CSF chimera suppresses tumor progression via reprogramming tumor-associated macrophages.Journal for immunotherapy of cancer · 2025Article
- Cancer-associated fibroblasts in hepatocellular carcinoma: heterogeneity, mechanisms and therapeutic targets.Hepatology international · 2025Review
- Phase Ib Study of Immunocytokine Simlukafusp Alfa (FAP-IL2v) Combined with Pembrolizumab for Treatment of Advanced and/or Metastatic Melanoma.Cancer research communications · 2025Article
- Phase Ib Study of the Immunocytokine Simlukafusp Alfa (FAP-IL2v) in Combination with Cetuximab in Patients with Head and Neck Squamous Cell Carcinoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Article
Corrections and comments
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Authors and funding
19 authors at 12 institutions in 7 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeSimlukafusp alfa [fibroblast activation protein α-targeted IL2 variant (FAP-IL2v)], a tumor-targeted immunocytokine, comprising an IL2 variant moiety with abolished CD25 binding fused to human IgG1, is directed against fibroblast activation protein α. This phase I, open-label, multicenter, dose-escalation, and extension study (NCT02627274) evaluated the safety, pharmacokinetics, pharmacodynamics, and antitumor activity of FAP-IL2v in patients with advanced/metastatic solid tumors. PATIENTS AND
methodsParticipants received FAP-IL2v intravenously once weekly. Dose escalation started at 5 mg; flat dosing (≤25 mg) and intraparticipant uptitration regimens (15/20, 20/25, 20/20/35, and 20/35/35 mg) were evaluated. Primary objectives were dose-limiting toxicities, maximum tolerated dose, recommended expansion dose, and pharmacokinetics.
resultsSixty-one participants were enrolled. Dose-limiting toxicities included fatigue (flat dose 20 mg: n = 1), asthenia (25 mg: n = 1), drug-induced liver injury (uptitration regimen 20/25 mg: n = 1), transaminase increase (20/25 mg: n = 1), and pneumonia (20/35/35 mg: n = 1). The uptitration regimen 15/20 mg was determined as the maximum tolerated dose and was selected as the recommended expansion dose. Increases in peripheral blood absolute immune cell counts were seen for all tested doses [NK cells, 13-fold; CD4+ T cells (including regulatory T cells), 2-fold; CD8+ T cells, 3.5-fold] but without any percentage change in regulatory T cells. Clinical activity was observed from 5 mg [objective response rate, 5.1% (n = 3); disease control rate, 27.1% (n = 16)]. Responses were durable [n = 3, 2.8 (censored), 6.3, and 43.4 months].
conclusionsFAP-IL2v had a manageable safety profile and showed initial signs of antitumor activity in advanced/metastatic solid tumors.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.