Prognostic Biomarkers for Patients With Human Papillomavirus (HPV) Positive Oropharyngeal Squamous Cell Carcinoma (OPSCC)

August 30, 2026 updated by: Sanjeev Chawla, Abramson Cancer Center at Penn Medicine

Full Exchange Pharmacokinetic Model Analysis of Dynamic Contrast-Enhanced MRI Data for Identification of Vascular Habitats and Evaluation of Treatment Response in Human Papillomavirus Positive Oropharyngeal Squamous Cell Carcinomas

The purpose of this research study is to investigate the relationship between vascular habitats and treatment response AND to investigate the potential utility of dynamic contrast enhanced (DCE)-MRI derived parameters in predicting treatment response.

This data can be used to assist in the development of a clinical decision support (CDS) tool for risk categorization and individualized decision-making. While "low-risk" patients could benefit from de-escalated radiation therapy, "high-risk" patients could receive early initiation of targeted therapies, or immunotherapies.

Study Overview

Detailed Description

The current standard of care treatment for inoperable human papillomavirus (HPV)-positive oropharyngeal squamous cell carcinoma (OPSCC) patients includes concurrent cisplatin and radiation therapy with a total dose of 70Gy over a period of 7 weeks. As reported by our group and others, the full dose of CRT regimen is associated with a considerable acute and chronic toxicity profile, negatively impacting the quality of life of OPSCC patients. Moreover, treatment related morbidities result in adverse social and economic consequences. Given that HPV-positive OPSCCs are more chemo-radiosensitive in patients who are typically younger and have a high likelihood of surviving their disease, there is great interest across the world in the development of de-escalated therapeutic strategies. The de-escalation approaches include omitting, replacing, or reducing cytotoxic chemotherapy; reducing dose or field of radiation therapy; and incorporation of less-invasive surgical procedures. The goal of these treatment de-intensification strategies is to maintain good cure rates while preserving normal functional outcomes and minimizing long-term morbidity.

Despite promising outcome measures with de-escalated radiation therapy in HPV-positive OPSCC patients, clinical trials have also reported considerable variability in response among individual patients receiving low-dose radiation therapy. Between 5-25% of these patients develop disease recurrence (at loco-regional or distant sites) within 2 years post-treatment. Recently, two large phase-III trials, RTOG 1016 and De-ESCALaTE, demonstrated inferior outcomes [hazard of locoregional failure in de-escalated treatment arm was more than twice that of standard of care treatment arm (HR=2.05, 95%CI=1.35-3.10; p=0.0005)] in HPV-positive OPSCC patients. Taken together, these findings advocate for applying a cautious approach while selecting HPV-positive OPSCC patients for de-escalation therapies. In clinical practice, less advanced tumor (T0-T3) or nodal (N0-N2) stage, and non-significant smoking history (less than or equal to 10 pack years as threshold) are generally used for selecting patients for de-escalation therapies. However, there is a lack of consensus on the utility of these highly subjective factors which are not sufficiently appropriate to identify suitable candidates for participating in de-escalation trials. Additionally, response to induction therapy, determined by greater than or equal to 50% reduction in tumor size, relative to baseline, has been used to select patients. However, measurement of tumor volume using anatomical images alone is not a good predictor of treatment response. Assessment of pre- and early post-treatment hypoxia from the primary tumor and metastatic nodes using F-FMISO (fluoromisonidazole)-positron emission tomography (PET) has also been used to select patients for receiving de-escalated radiation therapy. However, nonspecific and overlapping findings have been reported with F-FMISO-PET in HNSCCs, raising concerns about its utility as a reliable imaging biomarker. Moreover, F-FMISO radiotracer is not readily available for clinical applications around the world.

Therefore, there is a pressing need for the development of reliable, objective, and quantifiable MRI biomarkers for risk stratification and individualized decision making for HPV-positive OPSCC patients.

Study Type

Interventional

Enrollment (Estimated)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Hospital of the University of Pennsylvania

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adult population (≥18 years) of both genders
  • Biopsy confirmed diagnosis of OPSCC
  • Known HPV status as determined by p16 immunohistochemistry (p16 positivity defined as >70% of carcinoma cells showing nuclear reactivity) or polymerase chain reaction (PCR) sequencing
  • Prior to any treatment except for incisional or excisional biopsies
  • T0 to T4, N1 to N3, M0 (American Joint Committee on Cancer, 8th edition)
  • A willingness to undergo multiple phlebotomy (blood withdrawal) during standard CRT for liquid biopsy analyses.

Exclusion Criteria:

  • HPV- negative OPSCC
  • Presence of distant metastatic (M1) disease
  • Pregnancy
  • Existence of significant co-morbidities at baseline which would prevent standard CRT treatment
  • Implanted cardiac pacemaker or defibrillator, programmable shunts, deep brain stimulator, other implanted electronic devices which may be contraindicated for 3T MRI
  • Presence of significant hemorrhage in and around the tumor bed that may potentially degrade the image quality
  • Significant claustrophobia.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: HPV Positive Oropharyngeal Squamous Cell Carcinoma

You are being asked to complete two research MRI scans with and without contrast because you have been newly diagnosed HPV-positive oropharyngeal squamous cell carcinoma (OPSCC) and plan to receive chemoradiation therapy (CRT).

MRI contrast agents act like a dye to make MRI pictures brighter and easier to read. During each MRI scan, you will have an intravenous line (IV line) placed. The IV line allows the contrast agent to be injected into your vein.

Magnetic Resonance Imaging (MRI) is a type of scan that uses radio waves to take detailed pictures of the body. You will be asked to lie on an MRI table where the technologist will place a receiver on the part of your body to be studied. You will be provided a blanket for comfort and earplugs since the MRI makes noises while it is scanning. You will still be able to hear some sound to ensure you can communicate with the technologist and can follow any direction given throughout the MRI scan. The technologist will slowly slide you into the MRI magnet where radio waves will be transmitted into you.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to Progression
Time Frame: 1 Year
Determination of the clinical utility of pretreatment Diffusion Weighted Imaging (DWI) and Dynamic Contrast Enhanced-MRI (DCE-MRI) derived parameters in predicting response to standard Chemo-radiotherapy (CRT) in patients with HPV-positive Oropharyngeal Squamous Cell Carcinomas (OPSCC).
1 Year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Secondary Outcome
Time Frame: 1 year
Development of a Bayesian Network-based prediction model in identifying good responders to standard Chemo-Radiotherapy (CRT).
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Sanjeev Chawla, University of Pennsylvania

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

September 15, 2026

Primary Completion (Estimated)

May 15, 2028

Study Completion (Estimated)

September 15, 2028

Study Registration Dates

First Submitted

April 20, 2026

First Submitted That Met QC Criteria

August 30, 2026

First Posted (Actual)

September 1, 2026

Study Record Updates

Last Update Posted (Actual)

September 1, 2026

Last Update Submitted That Met QC Criteria

August 30, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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