Circulating Tumor DNA (ctDNA) for Early Treatment Response Assessment of Solid Tumors
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04354064 |
Recruitment Status :
Recruiting
First Posted : April 21, 2020
Last Update Posted : March 17, 2023
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Condition or disease |
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Healthy Volunteer Prostate Cancer Head and Neck Cancer Esophageal Cancer Genitourinary Cancer Sarcoma Breast Cancer Colon Cancer Gastrointestinal Cancer Solid Tumor Cancer Lung Cancer Skin Cancer Melanoma |
Study Type : | Observational |
Estimated Enrollment : | 3362 participants |
Observational Model: | Cohort |
Time Perspective: | Other |
Official Title: | Circulating Tumor DNA (ctDNA) for Early Treatment Response Assessment of Solid Tumors |
Actual Study Start Date : | May 29, 2019 |
Estimated Primary Completion Date : | December 31, 2025 |
Estimated Study Completion Date : | December 31, 2025 |

Group/Cohort |
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Healthy Donor Samples
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Samples from Repository and Banking Studies
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- Freedom from progression [ Time Frame: Through completion of study (estimated to be 6.5 years) ]-Defined as RECIST 1.1 based radiographic or clinical progression, with non-progressors censored at last radiographic follow-up
- Event-free survival [ Time Frame: Through completion of study (estimated to be 6.5 years) ]-Defined as post-treatment ctDNA detection or RECIST 1.1 based radiographic progression
- Disease-specific survival [ Time Frame: Through completion of study (estimated to be 6.5 years) ]-Defined as death from cancer
- Overall survival [ Time Frame: Through completion of study (estimated to be 6.5 years) ]-Defined as death from any cause
- Pathologic complete response rate [ Time Frame: Through completion of study (estimated to be 6.5 years) ]
- Locoregional failure [ Time Frame: Through completion of study (estimated to be 6.5 years) ]-Defined as clinical or radiographic progression within the localized tumor/treatment area or regional lymph nodes
- Distant-metastasis-free survival [ Time Frame: Through completion of study (estimated to be 6.5 years) ]-Defined as clinical or radiographic progression outside the localized tumor/treatment area and regional lymph nodes
Biospecimen Retention: Samples With DNA
- Blood and/or urine from healthy volunteers under this study
- The remaining samples (tissue, blood, drain fluid, urine, plasma) will be collected under various repository and banking studies at Washington University School of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Sampling Method: | Non-Probability Sample |
- 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)
Inclusion Criteria:
- Eligible healthy donors will be at least 18 years of age.
Exclusion Criteria:
- Healthy donors younger than 18 years of age

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04354064
Contact: Aadel Chaudhuri, M.D., Ph.D. | 314-273-2931 | aadel@wustl.edu |
United States, Missouri | |
Washington University School of Medicine | Recruiting |
Saint Louis, Missouri, United States, 63110 | |
Contact: Aadel Chaudhuri, M.D., Ph.D. 314-273-2931 aadel@wustl.edu | |
Principal Investigator: Aadel Chaudhuri, M.D., Ph.D. | |
Sub-Investigator: Peter Harris, Ph.D. | |
Sub-Investigator: Re-I Chin, M.D. | |
Sub-Investigator: Hiram Gay, M.D. | |
Sub-Investigator: Mackenzie Daly, M.D. | |
Sub-Investigator: Wade Thorstad, M.D. | |
Sub-Investigator: Jose Zevallos, M.D., MPH | |
Sub-Investigator: Sidharth Puram, M.D., Ph.D. | |
Sub-Investigator: Varun Puri, M.D. | |
Sub-Investigator: Christopher Maher, Ph.D. | |
Sub-Investigator: Ha Dang, Ph.D. | |
Sub-Investigator: Russell Pachynski, M.D., Ph.D. | |
Sub-Investigator: Paul Jones, B.A. | |
Sub-Investigator: Benjamin Tan, M.D. | |
Sub-Investigator: James Hsieh, M.D., Ph.D. | |
Sub-Investigator: Zachary Smith, M.D. | |
Sub-Investigator: Eric Kim, M.D. | |
Sub-Investigator: Vivek Arora, M.D. | |
Sub-Investigator: Brian Van Tine, M.D., Ph.D. | |
Sub-Investigator: Angela Hirbe, M.D., Ph.D. | |
Sub-Investigator: Matthew Spraker, M.D., Ph.D. | |
Sub-Investigator: Cynthia Ma, M.D., Ph.D. | |
Sub-Investigator: Imran Zoberi, M.D. | |
Sub-Investigator: Ryan Fields, M.D. | |
Sub-Investigator: Koushik Das, M.D. | |
Sub-Investigator: Ricardo Ramirez, M.D. | |
Sub-Investigator: David Chen, M.D., Ph.D. | |
Sub-Investigator: Nicholas Semenkovich, M.D., Ph.D. |
Principal Investigator: | Aadel Chaudhuri, M.D., Ph.D. | Washington University School of Medicine |
Responsible Party: | Washington University School of Medicine |
ClinicalTrials.gov Identifier: | NCT04354064 |
Other Study ID Numbers: |
201903142 |
First Posted: | April 21, 2020 Key Record Dates |
Last Update Posted: | March 17, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | All of the individual participant data collected during the trial, after deidentification will be available for sharing with other researchers. |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Gastrointestinal Neoplasms Urogenital Neoplasms Neoplasms Neoplasms by Site |
Digestive System Neoplasms Digestive System Diseases Gastrointestinal Diseases |