ArticleThe oncologist2025
Phase 1 study of zavondemstat (TACH101), a first-in-class KDM4 inhibitor, in patients with advanced solid tumors.
Article in The oncologist, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed.
- Context matters for drug targeting.Nature chemical biology · 2026Article
- Therapeutic Vulnerabilities of the Key Genetic Drivers in Leiomyosarcoma.Medical sciences (Basel, Switzerland) · 2026Review
- Review
- The JMJD family histone demethylases: structure, mechanism of action, diseases and therapeutic targets.Molecular biomedicine · 2026Review
- KDM4D enhances radiosensitivity in esophageal squamous cell carcinoma through the SRBD1/RPL11/c-Myc/WIP1/CHK1 axis.American journal of translational research · 2026Article
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Authors and funding
14 authors.
Funding
Abstract
backgroundThis was a first-in-human, phase I, dose-escalation study evaluating the safety, pharmacokinetics, and preliminary efficacy of zavondemstat (TACH101), an epigenetic targeting inhibitor of KDM4 histone demethylase, in patients with heavily pre-treated advanced/metastatic cancers. PATIENTS AND
methodsPatients received zavondemstat orally on a weekly schedule in 28-day cycles. Dose escalation followed a Bayesian optimal interval design and explored both intermittent and continuous dosing. The primary objectives were to assess safety, dose-limiting toxicities (DLTs), maximum tolerated dose (MTD), and recommended phase II dose (RP2D). Secondary objectives included pharmacokinetics and radiographic response per Response Evaluation Criteria in Solid Tumors, version 1.1.
resultsThirty patients were enrolled across 6 dose cohorts. MTD was not reached at the maximum dose tested. The most common treatment-related adverse events (TRAEs) were diarrhea (12%), fatigue (7%), decreased appetite (7%), nausea (7%), and hyponatremia (7%). All TRAEs were grade 1 or 2. No serious TRAEs or DLTs were reported. Of 23 response-evaluable patients, 10 (44%) achieved stable disease (SD). Two patients (9%) had SD ≥ 6 months, including a patient with castration-resistant prostate cancer and a patient with leiomyosarcoma. A third patient (leiomyosarcoma) receiving ongoing treatment with zavondemstat under compassionate use has had SD for 6+ months. Zavondemstat demonstrated a dose-proportional exposure profile with a half-life of about 1.5 hours. There was no to minimal drug accumulation observed.
conclusionsZavondemstat was very well tolerated and showed encouraging preliminary clinical benefit in heavily pretreated patients with advanced cancer. Continued evaluation of zavondemstat is warranted.
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