ArticleThe Journal of urology2024
Phase 1b Trial Evaluating Tolerability and Activity of Targeted Fibroblast Growth Factor Receptor Inhibition in Localized Upper Tract Urothelial Carcinoma.
Article in The Journal of urology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04228042 (Tolerability and Activity of Neoadjuvant Infigratinib, an Inhibitor of FGFR, in Upper Tract Urothelial Carcinoma), which is not on this map. Cited by 6 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.
Tolerability and Activity of Neoadjuvant Infigratinib, an Inhibitor of FGFR, in Upper Tract Urothelial Carcinoma
Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Modern management of locally advanced urothelial carcinoma of the upper urinary tract.World journal of urology · 2026Review
- Pathogenic Role of FGFR3 Autoantibodies in Small Fiber Neuropathy.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Kidney-Sparing Surgery for Upper Tract Urothelial Carcinoma-Modalities, Outcomes, and Limitations.Journal of clinical medicine · 2024Review
- Clinical Implications of the Molecular and Genomic Landscape of Upper Tract Urothelial Carcinoma.Current urology reports · 2024Review
- Fibroblast growth factor receptors as targets for anticancer therapy in cholangiocarcinomas and urothelial carcinomas.Heliyon · 2023Review
- Urothelial carcinoma: Perioperative considerations from top to bottom.CA: a cancer journal for cliniciansReview
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Authors and funding
13 authors at 2 institutions in 1 country.
Funding
Abstract
purposeWe initiated a biomarker-informed preoperative study of infigratinib, a fibroblast growth factor receptor (FGFR) inhibitor, in patients with localized upper tract urothelial carcinoma (UTUC), a population with high unmet needs and tumor with a high frequency of FGFR3 alterations. MATERIALS AND
methodsPatients with localized UTUC undergoing ureteroscopy or nephroureterectomy/ureterectomy were enrolled on a phase 1b trial (NCT04228042). Once-daily infigratinib 125 mg by mouth × 21 days (28-day cycle) was given for 2 cycles. Tolerability was monitored by Bayesian design and predefined stopping boundaries. The primary endpoint was tolerability, and the secondary endpoint was objective response based on tumor mapping, done after endoscopic biopsy and post-trial surgery. Total planned enrollment: 20 patients. Targeted sequencing performed using a NovaSeq 6000 solid tumor panel.
resultsFrom May 2021 to November 2022, 14 patients were enrolled, at which point the trial was closed due to termination of all infigratinib oncology trials. Two patients (14.3%) had treatment-terminating toxicities, well below the stopping threshold. Responses occurred in 6 (66.7%) of 9 patients with FGFR3 alterations. Responders had median tumor size reduction of 67%, with 3 of 5 patients initially planned for nephroureterectomy/ureterectomy converted to ureteroscopy. Median follow-up in responders was 24.7 months (14.9-28.9).
conclusionsIn this first trial of targeted therapy for localized UTUC, FGFR inhibition was well tolerated and had significant activity in FGFR3 altered tumors. Renal preservation was enabled in a substantial proportion of participants. These data support the design of a biomarker-driven phase 2 trial of FGFR3 inhibition in this population with significant unmet clinical needs.
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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.