ArticleClinical cancer research : an official journal of the American Association for Cancer Research2024
Phase Ib Study of the Immunocytokine Simlukafusp Alfa (FAP-IL2v) in Combination with Cetuximab in Patients with Head and Neck Squamous Cell Carcinoma.
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 7 papers.
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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
7 citing papers in PubMed.
- Cancer-associated fibroblast targeting therapies as a tool to enhance responses to radiotherapy and immunotherapy.Journal for immunotherapy of cancer · 2026Review
- T-Cell Immunity and Lung Cancer.Respirology (Carlton, Vic.) · 2026Review
- Cancer-Associated Fibroblast-Targeted Nanomedicine in Solid Tumor Therapy: From Mechanisms of Therapeutic Resistance to Precision Stromal Modulation.International journal of nanomedicine · 2026Review
- Targeting FAP/CAFs to rewire immune-excluded and resistant tumor niches.Frontiers in pharmacology · 2026Review
- Review
- Overcoming cancer treatment resistance: Unraveling the role of cancer-associated fibroblasts.Journal of the National Cancer Center · 2025Review
- Dual Disruption of EGFR/PI3K Signaling: IGF2BP2 Targeting Reverses Anti-EGFR Resistance in CAFs-Infiltrated Oral Squamous Cell Carcinoma.International journal of molecular sciences · 2025Article
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24 authors.
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Abstract
purposeThis phase Ib trial evaluated fibroblast activation protein-α-targeted IL2 variant (FAP-IL2v), a novel immunocytokine engineered to minimize CD25-mediated toxicities, in combination with cetuximab, in patients with recurrent, unresectable, or metastatic head and neck squamous cell carcinoma (HNSCC). PATIENTS AND
methodsPatients received FAP-IL2v either on a continuous weekly (QW) schedule or QW for 4 weeks and then every 2 weeks (Q2W). Cetuximab was dosed at QW or Q2W schedules. The primary objectives were to evaluate the safety and tolerability, maximum tolerated dose, pharmacokinetics, and clinical activity for the combination of FAP-IL2v with cetuximab. Exploratory objectives included pharmacodynamic analyses.
resultsA total of 58 patients were enrolled, 19 patients into the dose-escalation part, and 39 patients into the expansion part. The maximum tolerated dose of FAP-IL2v was defined as 10 mg (QW/Q2W) in combination with cetuximab (500 mg/m2, Q2W), which was further tested in the expansion part. The most common FAP-IL2v-related adverse events with a grade 3 or 4 severity were hypophosphatemia (19%), lymphopenia (16%), and infusion-related reaction (14%). The pharmacokinetics of FAP-IL2v in combination with cetuximab was similar to that after administration as monotherapy. Consistent with the proposed mode of action, FAP-IL2v preferentially expanded intratumoral NK and CD8 T cells. Four patients achieved a partial response, and the objective response rate was 7% (95% confidence interval, 3.2-14.7).
conclusionsThe safety profile of FAP-IL2v in combination with cetuximab was acceptable, and pharmacodynamic markers support the proposed mode of action of this combination, but the overall low antitumor activity does not warrant further clinical exploration in HNSCC. [Part C of Study BP29842 (NCT02627274).].
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