Human Papilloma Virus (HPV) Circulating Tumor DNA (ctDNA) in Cervical Cancer

October 24, 2025 updated by: Mayo Clinic
This study collects blood samples to determine if the DNA of HPV that causes cervical cancer can be detected in patients with cervical cancer that is new (primary), has come back (recurrent), or has spread to other places in the body (metastatic) and are undergoing treatment with surgery, radiotherapy, chemotherapy, and/or immunotherapy. Researchers may use this information to predict response (good or bad) of the cervical cancer to treatment and detect recurrent cancer sooner.

Study Overview

Detailed Description

PRIMARY OBJECTIVES:

I. To estimate the ctDNA detection rate in cervix cancer patients undergoing surgery, radiotherapy, chemotherapy, and/or immunotherapy in the setting of primary, recurrent or metastatic disease.

II. Association of ctDNA baseline levels and clearance kinetics with clinical and radiographic tumor response.

III. To explore the association of detectable ctDNA at each time point with invasive recurrence-free survival and overall survival.

IV. To explore the use of ctDNA for surveillance and detection of disease recurrence.

V. To create a repository for future exploratory studies including analyzing changes in T cell and other immune cell subpopulations during and following therapy for cervix cancer.

OUTLINE: Patients are assigned to 1 of 4 cohorts.

COHORT 1: Patients undergo collection of blood samples at baseline prior to surgery, at 6 weeks, 3, 6, and 12 months post-surgery, every 6 months during year 2, and at the time of recurrence (if applicable).

COHORT 2: Patients undergo collection of blood samples at baseline prior to the first fraction of radiation, during week 4 of radiotherapy, at 6 weeks, 3, 6, and 12 months post-radiotherapy, every 6 months during year 2, and at the time of recurrence (if applicable).

COHORT 3: Patients undergo collection of blood samples at baseline prior to the first fraction of radiation, during week 4 of radiotherapy, on the day of the final fraction of radiotherapy, at 3 months post-radiotherapy, every 3 months during years 1 and 2, and at the time of recurrence (if applicable).

COHORT 4: Patients undergo collection of blood samples at baseline prior to initiation of chemotherapy or immunotherapy, at 4 weeks and 8 weeks after initiation of chemotherapy or immunotherapy, every 3 months during years 1 and 2, and at the time of recurrence (if applicable).

Study Type

Observational

Enrollment (Actual)

18

Contacts and Locations

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

Study Locations

    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • University of Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic in Rochester

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Women ages 18 and older presenting with p16-positive or HPV-positive invasive carcinoma of the cervix cancer with plan to undergo therapy at Mayo Clinic Rochester or the University of Minnesota.

Description

Inclusion Criteria:

  • Able to provide written consent
  • Patient has given permission to give tumor/blood sample for research testing
  • Histological confirmation of adenocarcinoma, adenosquamous, or small cell carcinoma of the cervix
  • Known HPV status defined as positive staining for p16 on IHC or DNA ISH for HPV
  • Willingness to return to enrolling institution (Mayo Clinic Rochester or the University of Minnesota) for follow-up (during the Active Monitoring Phase of the study) or complete blood draws locally using study mail-in kits
  • Consent to allow blood specimens to be shared with Mayo Clinic study personnel and potential external collaborators for sample analysis
  • Definitive Chemoradiotherapy for Locally Advanced Disease (FIGO Stage IB2-IIIC)

    • FIGO 2019 Stage IB2-IIIC or not a surgical candidate
    • Plan to undergo definitive chemoradiotherapy including external beam radiotherapy, brachytherapy, and chemotherapy

Exclusion Criteria:

  • Other active malignancy =< 2 years prior to registration.

    • EXCEPTIONS: Non-melanotic skin cancer
    • NOTE: If there is a history or prior malignancy, they must not be receiving other specific treatment for cancer
  • Pregnancy or lactation
  • Inability on the part of the patient to understand the informed consent to be compliant with the protocol

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

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Definitive chemoradiotherapy patients
Patients undergo collection of blood samples at baseline prior to the first fraction of radiation, during week 4 of radiotherapy, on the day of the final fraction of radiotherapy, at 3 months post-radiotherapy, every 3 months during years 1 and 2, and at the time of recurrence (if applicable).
Undergo collection of blood samples

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Proportion of patients with undetectable circulating tumor deoxyribonucleic acid (ctDNA) posttreatment in patients with detectable ctDNA pre-treatment
Time Frame: At 6 weeks post-surgery (cohort 1), at 4-6 weeks after completion of chemotherapy and radiation (cohort 2), 4-6 weeks post End of chemotherapy and radiotherapy (cohort 3), at 8 weeks after start of chemotherapy or immunotherapy (cohort 4)
The proportion will be reported along with the exact 95% binomial confidence interval. Additionally will report the mean standard deviation and median interquartile range ctDNA post-treatment in these patients.
At 6 weeks post-surgery (cohort 1), at 4-6 weeks after completion of chemotherapy and radiation (cohort 2), 4-6 weeks post End of chemotherapy and radiotherapy (cohort 3), at 8 weeks after start of chemotherapy or immunotherapy (cohort 4)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
ctDNA levels
Time Frame: Baseline
Will be associated with Federation of Gynecology and Obstetrics stage and assessed using linear regression, reporting the correlation as well as the model estimates.
Baseline
Clinical tumor response
Time Frame: At post-treatment assessment, assessed up to 2 years
Will be assessed for association with baseline and post-treatment ctDNA using logistic regression. Depending on the number of tumor response, or non-response patients whichever is fewer, multiple variable models may be considered including additional relevant baseline covariates such as disease stage.
At post-treatment assessment, assessed up to 2 years
Radiographic tumor response
Time Frame: At post-treatment assessment, assessed up to 2 years
Will be assessed for association with baseline and post-treatment ctDNA using logistic regression. Depending on the number of tumor response, or non-response patients whichever is fewer, multiple variable models may be considered including additional relevant baseline covariates such as disease stage.
At post-treatment assessment, assessed up to 2 years
Recurrence-free survival
Time Frame: Up to 2 years
Baseline ctDNA and ctDNA at measured time points will be considered in Cox models.
Up to 2 years
Overall survival
Time Frame: Up to 2 years
Baseline ctDNA and ctDNA at measured time points will be considered in Cox models. ctDNA other than at baseline will be considered in these models as a time dependent covariate. Depending on the number of events, multiple variable models may be considered including additional relevant baseline covariates such as disease stage.
Up to 2 years
ctDNA clearance kinetics
Time Frame: Up to 2 years
Will be correlated with recurrence-free survival. ctDNA other than at baseline will be considered in these models as a time dependent covariate. Depending on the number of events, multiple variable models may be considered including additional relevant baseline covariates such as disease stage.
Up to 2 years
ctDNA conversion
Time Frame: Up to 2 years
Will be correlated during the active monitoring phase with recurrence-free survival.
Up to 2 years

Collaborators and Investigators

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

Sponsor

Investigators

  • Principal Investigator: Allison E. Garda, MD, Mayo Clinic in Rochester

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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 (Actual)

November 17, 2020

Primary Completion (Actual)

September 10, 2025

Study Completion (Estimated)

November 30, 2027

Study Registration Dates

First Submitted

September 23, 2020

First Submitted That Met QC Criteria

September 28, 2020

First Posted (Actual)

October 5, 2020

Study Record Updates

Last Update Posted (Estimated)

October 27, 2025

Last Update Submitted That Met QC Criteria

October 24, 2025

Last Verified

October 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • ROR1905 (Other Identifier: Mayo Clinic in Rochester)
  • NCI-2020-06965 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
  • 19-011924 (Other Identifier: Mayo Clinic Institutional Review Board)

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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