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Clinical Trial Summary

This is a Phase II single-arm window trial to assess the clinical and biological effects of neoadjuvant abemaciclib in patients with HPV-negative head and neck squamous cell carcinoma (HNSCC).


Clinical Trial Description

This is a Phase II single-arm window trial to assess the clinical and biological effects of 10-21 days of neoadjuvant abemaciclib in patients with HPV-negative HNSCC who are planned for oncologic surgery, with pre-clinically informed genetic and immune biomarker correlatives. In the window-of-opportunity clinical trial, patients planned for oncologic surgery are briefly exposed to a novel cancer agent in the window between diagnostic biopsy and definitive surgery. Paired, pre- and post-surgical tumor specimens permit ex vivo analysis of target modulation in both tumor and the tumor microenvironment - providing insight into mechanism of action and paving the way for rigorous companion biomarker development. Clinical activity is assessed by quantitative change in tumor size (∆T), which is correlated to hypothesis-driven genomic and immune biomarkers of interest. Investigators hypothesize that abemaciclib will significantly reduce tumor burden as measured by ∆T. Further, investigators will test the primary biomarker hypothesis that the clinical activity of abemaciclib is associated with an increased proportion of tumors that are T-cell inflamed. Investigators will evaluate tumor-intrinsic, tumor microenvironment (TME), and microbiome biomarker hypotheses in specific genetic contexts, including tumors with specific classes of tumor protein 53 (TP53) mutations, p16 loss, and/or CCND1 amplification. ;


Study Design


Related Conditions & MeSH terms

  • HNSCC
  • Squamous Cell Carcinoma of Head and Neck

NCT number NCT04169074
Study type Interventional
Source University of Arizona
Contact Rachel Jarrett, MPH
Phone 520.626.0375
Email rjarrett@email.arizona.edu
Status Recruiting
Phase Phase 2
Start date June 16, 2021
Completion date June 30, 2024

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