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Clinical Trial Summary

To determine the outcomes of patients with specific head and neck cancer after undergoing radiation therapy with atezolizumab followed by surgery then radiation with or without chemotherapy according to national guidelines.


Clinical Trial Description

Hypothesis: that the addition of SBRT to neoadjuvant checkpoint inhibition would be safe and would prime the immune system and improve the chances of a successful surgery and overall survival. The preliminary analysis demonstrated the safety of dose escalation of anti-PD-L1-RT to 18Gy in 3 fractions. In this study, the maximum dose to the tumor was escalated to 133%, an equivalent dose of 24 Gy in 3 fractions, with no safety or unexpected surgical issues encountered. At interim analysis, counting all patients, even those treated for the 12Gy in 2 fractions and even those that received surgery at 2 weeks, the rate of pTR-2 or greater was close to 100%. With only 11 analyzable patients and counting those who received the dose escalated 18 Gy in 3 fractions radiation with anti-PD-L1, investigators have observed much higher pathological responses. Another group of investigators has also demonstrated the safety of delivering 24 Gy in 3 fractions with anti-PD-L1 (https://clincancerres.aacrjournals.org/content/26/12_Supplement_2/B01). Given the safety and preliminary efficacy of 24 Gy in 3 fractions SBRT with anti-PD-L1 therapy in the neoadjuvant setting, the investigators propose the present study to assess the impact of this regimen on pathologic tumor response rate. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05053737
Study type Interventional
Source University of Colorado, Denver
Contact
Status Suspended
Phase Phase 1
Start date November 2, 2021
Completion date November 2024

See also
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