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ATR Inhibitor

Peposertib + Radiation for Advanced Head and Neck Cancer

Phase 1
Recruiting
Led By Maura L Gillison
Research Sponsored by National Cancer Institute (NCI)
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Known HIV infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months and CD4 T cell count >= 200
Age >= 70 with moderate to severe comorbidity, defined as having one or more of the specified conditions within 30 days prior to registration
Timeline
Screening 3 weeks
Treatment Varies
Follow Up at 6 months and 1 year
Awards & highlights

Study Summary

This trial is testing the safety and efficacy of peposertib as a treatment for head and neck cancer that has spread to other parts of the body.

Who is the study for?
This trial is for adults with advanced head and neck cancer who can't take cisplatin. Participants must be HIV-positive on effective treatment, able to swallow tablets, willing to use contraception, have certain types of oropharynx cancer stages, measurable disease per RECIST 1.1 criteria, specific blood cell counts within range, and no history of distant metastatic disease.Check my eligibility
What is being tested?
The trial tests the safety and optimal dose of peposertib combined with intensity-modulated radiation therapy in patients with advanced head and neck cancer. It aims to determine if this combination is more effective than radiation alone for those unable to receive cisplatin.See study design
What are the potential side effects?
Potential side effects include reactions related to blocking enzymes needed for cell growth (which may affect normal cells as well), typical risks associated with radiation such as skin irritation or damage at the treatment site, fatigue, nausea, and other symptoms depending on which organs are affected by the therapy.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I am HIV positive, on treatment, with undetectable viral load and CD4 count >= 200.
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I am 70 or older with one or more serious health conditions.
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My cancer is in the early to mid stages and located in my mouth, throat, or voice box.
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I cannot take cisplatin due to health reasons.
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I have been mostly active and able to carry out all pre-disease activities without restriction in the last 30 days.
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I am 18 or older and cannot take cisplatin due to health reasons.
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I can swallow pills without any issues.
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My throat cancer is p16 positive and falls within specific stages.
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My cancer is confirmed in the mouth, throat, voice box, or below the voice box.
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My oropharynx cancer is p16 positive, confirmed by a specific test.
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I am 18 years old or older.
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I am under 70 and have two or more severe health conditions.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~at 6 months and 1 year
This trial's timeline: 3 weeks for screening, Varies for treatment, and at 6 months and 1 year for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Dose-limiting toxicity
Secondary outcome measures
Clinical response rate
Incidence of acute toxicity
Incidence of late toxicity
+2 more
Other outcome measures
Pharmacokinetic (PK) parameter of M3814 (peposertib)

Trial Design

1Treatment groups
Experimental Treatment
Group I: Treatment (peposertib, IMRT)Experimental Treatment6 Interventions
Beginning 60-90 minutes before each radiation treatment, patients receive peposertib PO QD and undergo IMRT daily Monday-Friday for 7 weeks in the absence of disease progression or unacceptable toxicity. Patients also undergo CT, MRI, or 18F-FDG PET/CT during screening and follow-up.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Peposertib
2021
Completed Phase 1
~20
Computed Tomography
2017
Completed Phase 2
~2720
Intensity-Modulated Radiation Therapy
2010
Completed Phase 3
~2160
Positron Emission Tomography
2008
Completed Phase 2
~2240
Magnetic Resonance Imaging
2017
Completed Phase 3
~1190

Find a Location

Who is running the clinical trial?

National Cancer Institute (NCI)Lead Sponsor
13,667 Previous Clinical Trials
40,926,090 Total Patients Enrolled
NRG OncologyOTHER
231 Previous Clinical Trials
100,810 Total Patients Enrolled
Maura L GillisonPrincipal InvestigatorNRG Oncology
1 Previous Clinical Trials
180 Total Patients Enrolled

Media Library

Peposertib (ATR Inhibitor) Clinical Trial Eligibility Overview. Trial Name: NCT04533750 — Phase 1
Head and Neck Cancers Research Study Groups: Treatment (peposertib, IMRT)
Head and Neck Cancers Clinical Trial 2023: Peposertib Highlights & Side Effects. Trial Name: NCT04533750 — Phase 1
Peposertib (ATR Inhibitor) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04533750 — Phase 1

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.
~15 spots leftby Jul 2025