ArticleJournal of immunotherapy and precision oncology2025
Lefitolimod in Combination with Ipilimumab in Patients with Advanced Solid Tumors: A Phase I Trial.
Article in Journal of immunotherapy and precision oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Targeting pattern recognition receptors for cancer therapy: Mechanisms and strategies.Acta pharmaceutica Sinica. B · 2025Review
- Overcoming Immune Therapy Resistance in Cancer Through Innate Immune Reprogramming.International journal of molecular sciences · 2025Review
Corrections and comments
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Authors and funding
20 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: TLR9 agonists are immunomodulators that have been of interest for combined use with cancer immunotherapy. TLR9 agonists, such as lefitolimod (MGN1703), significantly increased Th1 response in preclinical models and have demonstrated efficacy in early clinical trials. This trial assessed the safety and preliminary efficacy of the combination of lefitolimod and ipilimumab in patients with advanced solid tumors. Methods: This was a single-center, open-label, investigator-initiated phase I trial conducted at The University of Texas MD Anderson Cancer Center. Patients received leftolimod either subcutaneously (at escalating doses of 15-120 mg) or intratumorally (at the maximum feasible dose) in combination with ipilimumab (3 mg/kg). Paired biopsy samples were collected before the start of treatment and after two treatment cycles and analyzed by flow cytometry. Results: We enrolled a total of 28 patients in this study with a median age of 56 years (range 19-75) in the escalation cohort and 60 years (range 34 -92) in the expansion cohort. The median number of prior lines of therapy was 4 (range 0-12). Eleven patients had at least one treatment-related adverse event (TRAE). The most common TRAEs were skin rash ( Conclusions: The combination of lefitolimod (administered subcutaneously or intratumorally) and ipilimumab was safe and well tolerated but demonstrated modest antitumor activity in patients with advanced cancers.
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