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Updated: Oct 5, 2025

Assays for Validating Histone Acetyltransferase Inhibitors
Published on: August 6, 2020
HBI-8000, HUYABIO Lead Clinical Program, Is a Selective Histone Deacetylase Inhibitor With Therapeutic Benefits in
Farbod Shojaei1, Bob Goodenow1, Gloria Lee1
1HUYABIO International LLC, San Diego, CA, United States.
Abstract:
HBI-8000 is a small molecule inhibitor of class I HDACs and has been approved for the treatment of PTCL, ATL and, in combination with exemestane, in a subpopulation of breast cancer. Given the roles of HDACs in normal and cancerous cells, there are currently multiple clinical trials, by HUYABIO International, to test the efficacy of HBI-8000 in monotherapy or in combination settings in leukemias and in solid tumors. The current review is focused on the applications of HDACi HBI-8000 in cancer therapy and its potential in combination with DDR agents.
Insights
HBI-8000, a histone deacetylase inhibitor (HDACi), shows promise in treating various cancers. Ongoing trials explore its efficacy alone and in combination with other agents for leukemias and solid tumors.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Histone deacetylases (HDACs) play crucial roles in cellular processes and cancer development.
- HBI-8000 is a validated small molecule inhibitor targeting class I HDACs.
- HBI-8000 is approved for treating peripheral T-cell lymphoma (PTCL), adult T-cell leukemia/lymphoma (ATL), and certain breast cancers.
Purpose of the Study:
- To review the therapeutic applications of HBI-8000 in cancer treatment.
- To explore the potential of HBI-8000 in combination with DNA Damage Response (DDR) agents.
Main Methods:
- Literature review of HBI-8000's efficacy in monotherapy and combination settings.
- Analysis of ongoing clinical trials investigating HBI-8000 in leukemias and solid tumors.
- Examination of the synergistic potential between HBI-8000 and DDR inhibitors.
Main Results:
- HBI-8000 has demonstrated efficacy in approved indications and is under investigation for broader applications.
- Multiple clinical trials are evaluating HBI-8000 in various hematological malignancies and solid tumors.
- Preclinical data suggests potential benefits of combining HBI-8000 with DDR agents.
Conclusions:
- HBI-8000 is a versatile HDAC inhibitor with established and emerging therapeutic roles in oncology.
- Combination strategies, particularly with DDR agents, represent a promising avenue for enhancing HBI-8000's anti-cancer activity.
- Further clinical investigation is warranted to fully elucidate the potential of HBI-8000 in diverse cancer settings.
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