Trial reportThe oncologist2016
A Phase II Trial of a Histone Deacetylase Inhibitor Panobinostat in Patients With Low-Grade Neuroendocrine Tumors.
Trial report in The oncologist, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 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.
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Who cites it
30 citing papers in PubMed, 44 citations in OpenAlex.
- Epigenetic Dysregulation of Somatostatin Receptors (SSTR) 1-5 and Therapeutic Implications in Neuroendocrine and Non-Neuroendocrine Malignancies.International journal of cancer · 2026Review
- Dynamic regulation of H3K9 modifications in cancer: pathogenesis and targeted therapies.Biomarker research · 2026Review
- Synergistic antitumor effects of 5-fluorouracil and vorinostat in preclinical models of pheochromocytomas and paragangliomas.Endocrine · 2026Article
- Neuroendocrine tumours through an epigenetic lens: Emerging insights for diagnosis and treatment.Journal of neuroendocrinology · 2026Review
- Molecular taxonomy of pancreatic neuroendocrine tumors reveals BEND2-fusions-driven transcriptional plasticity and therapeutic vulnerabilities.Cell reports. Medicine · 2026Article
- Histone modifications in biological age determination: mechanisms, biomarkers, and therapeutic perspectives.GeroScience · 2026Review
- Current Status of Immunotherapy in Management of Small Bowel Neuroendocrine Tumors.Current oncology reports · 2024Review
- Article
- Pancreatic Neuroendocrine Tumors: Signaling Pathways and Epigenetic Regulation.International journal of molecular sciences · 2024Review
- Novel Therapeutic Strategies Exploiting the Unique Properties of Neuroendocrine Neoplasms.Cancers · 2023Article
- Article
- Lung Neuroendocrine Tumors: How Does Molecular Profiling Help?Current oncology reports · 2022Review
- Role of Somatostatin Signalling in Neuroendocrine Tumours.International journal of molecular sciences · 2022Review
- Epigenetic Regulation in Gastroenteropancreatic Neuroendocrine Tumors.Frontiers in oncology · 2022Review
- Histone deacetylase inhibitors as a novel therapeutic approach for pheochromocytomas and paragangliomas.Oncology research · 2022Review
- Review
- Article
- Targeting histone deacetylases for combination therapies in neuroendocrine tumors.Cancer gene therapy · 2021Review
- Hypoxia-Driven Effects in Cancer: Characterization, Mechanisms, and Therapeutic Implications.Cells · 2021Review
- Anticancer Therapy with HDAC Inhibitors: Mechanism-Based Combination Strategies and Future Perspectives.Cancers · 2021Review
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
lessons learnedPancreatic neuroendocrine tumors versus carcinoid tumors should be examined separately in clinical trials.Progression-free survival is more clinically relevant as the primary endpoint (rather than response rate) in phase II trials for low-grade neuroendocrine tumors.
backgroundThe most common subtypes of neuroendocrine tumors (NETs) are pancreatic islet cell tumors and carcinoids, which represent only 2% of all gastrointestinal malignancies. Histone deacetylase (HDAC) inhibitors have already been shown to suppress tumor growth and induce apoptosis in various malignancies. In NET cells, HDAC inhibitors have resulted in increased Notch1 expression and subsequent inhibition of growth. We present here a phase II study of the novel HDAC inhibitor panobinostat in patients with low-grade NET.
methodsAdult patients with histologically confirmed, metastatic, low-grade NETs and an Eastern Cooperative Oncology Group (ECOG) performance status of ≤2 were treated with oral panobinostat 20 mg once daily three times per week. Treatment was continued until patients experienced unacceptable toxicities or disease progression. The study was stopped at planned interim analysis based on a Simon two-stage design.
resultsFifteen patients were accrued, and 13 were evaluable for response. No responses were seen, but the stable disease rate was 100%. The median progression-free survival (PFS) was 9.9 months, and the median overall survival was 47.3 months. Fatigue (27%), thrombocytopenia (20%), diarrhea (13%), and nausea (13%) were the most common related grade 3 toxicities. There was one grade 4 thrombocytopenia (7%). These results did not meet the prespecified criteria to open the study to full accrual.
conclusionThe HDAC inhibitor panobinostat has a high stable disease rate and reasonable PFS in low-grade NET, but has a low response rate.
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Registered trials
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.