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Healthy VolunteerNCT04354064

Circulating Tumor DNA (ctDNA) for Early Treatment Response Assessment of Solid Tumors

An observational study of Healthy Volunteer and Prostate Cancer, run by Washington University School of Medicine at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Earlier detection of disease recurrence will enable greater treatment options and has strong potential to improve patient outcomes. This project is translational and has the potential to lead to future translational research opportunities, including interventional trials in which therapeutic escalation is offered at… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
How many people
100 participants
Where
1 siteUnited States
Study dates
29 May 2019to 31 Dec 2026
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: * This study will access data and specimens from patients who consented to specimen banks (approximately 3262 patients) There is a waiver of consent for this study regarding patient data banked under the tissue banks. * Healthy donors will be consented prior to sample acquisition (approximately 100 patients)

Who may be able to join

  • Eligible healthy donors will be at least 18 years of age.

Who cannot join

  • Healthy donors younger than 18 years of age

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Melissa Reimers, M.D. contact

314-362-7249

cbumb@wustl.edu

United States1 site, 1 recruiting
  • Washington University School of Medicine

    St Louis, Missouri, 63110

    Melissa Reimers, M.D., 314-362-7249, cbumb@wustl.edu

    Melissa Reimers, M.D.

    Recruiting

Other trials in United States

About this study

Earlier detection of disease recurrence will enable greater treatment options and has strong potential to improve patient outcomes. This project is translational and has the potential to lead to future translational research opportunities, including interventional trials in which therapeutic escalation is offered at the early circulating tumor DNA (ctDNA) molecular residual disease (MRD) detection timepoint. Ultimately, the integration of ctDNA into the clinical workflow has the potential to enhance cancer diagnosis, treatment, surveillance, and prognosis, and guide clinical decision-making in this era of personalized precision medicine.

Medical subject headings
Prostatic Neoplasms, Head and Neck Neoplasms, Esophageal Neoplasms, Urogenital Neoplasms, Sarcoma, Breast Neoplasms, Colonic Neoplasms, Gastrointestinal Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04354064
Study groupRoleWhat they receive
Healthy Donor Samples* Donation of blood and/or urine samples as often as bi-monthly and as many as 24 times in total * These samples will be used to generate reference data to compare patient data to and/or to correct stereotypic noise.
Samples from Repository and Banking Studies* Healthy prostate and/or blood and/or urine samples from Genitourinary Repository * Tissue, blood, and/or drain fluid samples from Head and Neck Banking studies * Tissue and/or blood samples from Esophageal Repository * Tissue and/or blood samples from Genitourinary Repository * Tissue and/or plasma from Sarcoma Tissue Bank * Tissue and/or plasma from Breast Cancer Bank * Tissue, plasma, and/or urine from GI Tissue and Blood Bank * Tissue, blood, and/or urine from Solid Tumor Bank * Tissue, blood, and/or urine from Lung Cancer Bank * Tissue and/or blood from Skin Cancer Bank * Tissue and/or blood from Pediatric Neurosurgery Tissue Bank

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Freedom from progression

    -Defined as RECIST 1.1 based radiographic or clinical progression, with non-progressors censored at last radiographic follow-up

    Measured: Through completion of study (estimated to be 6.5 years)

Secondary outcomes (6)
  1. Event-free survival

    -Defined as post-treatment ctDNA detection or RECIST 1.1 based radiographic progression

    Measured: Through completion of study (estimated to be 6.5 years)

  2. Disease-specific survival

    -Defined as death from cancer

    Measured: Through completion of study (estimated to be 6.5 years)

  3. Overall survival

    -Defined as death from any cause

    Measured: Through completion of study (estimated to be 6.5 years)

  4. Pathologic complete response rate

    Measured: Through completion of study (estimated to be 6.5 years)

  5. Locoregional failure

    -Defined as clinical or radiographic progression within the localized tumor/treatment area or regional lymph nodes

    Measured: Through completion of study (estimated to be 6.5 years)

  6. Distant-metastasis-free survival

    -Defined as clinical or radiographic progression outside the localized tumor/treatment area and regional lymph nodes

    Measured: Through completion of study (estimated to be 6.5 years)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Apr 2020
  2. Study start29 May 2019
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Other
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04354064
Sponsor's protocol ID
201903142
Status last verified
Feb 2026
First submitted
16 Apr 2020
Last updated
20 Feb 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: All of the individual participant data collected during the trial, after deidentification will be available for sharing with other researchers.

Questions about this trial

What is this clinical trial studying?

An observational study of Healthy Volunteer and Prostate Cancer, run by Washington University School of Medicine at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 20 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Melissa Reimers, M.D. (314-362-7249, cbumb@wustl.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Freedom from progression (time frame: Through completion of study (estimated to be 6.5 years)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Feb 2026.

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