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Detecting Cancers Earlier Through Elective Plasma-based CancerSEEK Testing

Detecting Cancers Earlier Through Elective Plasma-based CancerSEEK Testing - Ascertaining Serial Cancer Patients to Enable New Diagnostic

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04213326
Acronym
ASCEND
Enrollment
6400
Registered
2019-12-30
Start date
2019-11-18
Completion date
2021-01-29
Last updated
2024-06-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Early Cancer Detection

Brief summary

This is a prospective, observational study of 1,000 subjects with known or suspected cancer and 2,000 subjects with no known cancer. Potential participants will be asked questions to confirm their eligibility by a nurse navigator, study staff member, or physician. Informed consent will be carried out for eligible subjects in accordance with applicable federal regulations and International Council for Harmonisation (ICH)/Good Clinical Practice (GCP) guidelines. Subjects will then complete a survey, and study staff will draw 60 mL of blood and measure the height and weight of the subject. Where available, data from the medical records of the cancer subjects will reviewed and collected. In addition, non-cancer subjects will be requested to allow access to their medical records as an optional portion of their informed consent.

Detailed description

This is a prospective, observational study of 1,000 subjects with known or suspected cancer confirmed through pathology reports and/or clinical/radiographic data and 2,000 subjects with no known cancer. De-identified blood samples and clinical data will be collected from subjects to validate a classification algorithm for a new version of the CancerSEEK assay. Potential participants will be asked questions to confirm their eligibility by a nurse navigator, study staff member, or physician to document screening including date of upcoming therapy or surgery for cancer patients if one has been scheduled, before providing informed consent to participate in the study. Study procedures outside of the pre-screening for eligibility will not be performed prior to the subject providing consent. Informed consent will be carried out in accordance with applicable federal regulations and International Council for Harmonisation (ICH)/Good Clinical Practice (GCP) guidelines. Prior to signing the informed consent form (ICF), potential participants will confirm that they understand the study and that they have no questions about the study. The ICF may be offered by paper or electronically with the option to also review a paper copy provided by the nurse navigator or study coordinator either face-to-face on a tablet or via email. Potential participants will be given a phone number to call with any study specific questions. Copies of all signed consent forms will be stored centrally in a secure environment, and signed consent forms will thereby be available for verification by Thrive or its designee at any time. Once the subject completes the survey, study staff will complete the blood draw and collect height and weight data. For some participants, their contact information and unique study identifier (ID) will be sent securely to a third-party vendor who will contact the subject within 24 hours to schedule the blood draw and height and weight measurements at a location convenient to the subject. For all subjects, study staff and the third-party vendor performing the blood collection will verify the following before performing the blood draw and height and weight measurements: participant identity and age against a form of identification, that consent to participate has been given, that the participants in the cancer arm are still treatment naïve, and that they do not have a fever that could be caused by an infection. The blood collection vendor will ensure all required data are captured and included with the blood sample, that the sample is collected and packaged according to laboratory manual specifications, and that the sample is shipped to the indicated processing lab with the required expediency. Following all study visits, study staff and third party vendor staff will complete a visit checklist confirming all of the study activities that occurred. Subjects in the Cancer cohort will be identified via nurse navigation, study staff or oncology physicians in local offices. The nurse navigator or study staff will verify eligibility through chart review and pre-screen, approach the subject about the study opportunity, and present the informed consent form. For participants enrolling electronically, participants will be presented with a secured tablet device on which the subject will watch a brief video about the study, read the informed consent and provide electronic consent. Some participants may also have the option of having the video, informed consent and survey emailed to them. Upon consent and enrollment, subjects will be assigned a unique subject study ID, which will be used to track the subject, their data and their biospecimen throughout study operations. Consented subjects will then be directed to complete a survey via the tablet device, email or paper. Participants will be allowed to skip questions in the survey or select the answer option prefer not to answer. Subject data will be tracked in real-time by central study staff to ensure desired tumor type diversification and communicate enrollment strategy changes to the nurse navigators and study staff.

Interventions

None listed

Sponsors

Exact Sciences Corporation
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Age 50 or greater * Ability to understand the nature of this study and give written informed consent CANCER COHORT: Either of the following: * Histologic diagnosis of cancer with no prior systemic or definitive therapy (any stage, including, inclusive of is-situ carcinoma) Or * Subject with high suspicion of cancer through radiological and/or clinical assessment who are scheduled for resection or biopsy within 6 weeks of study blood collection and have not received prior systemic or definitive therapy. NON-CANCER COHORT * No prior history of cancer

Exclusion criteria

ALL PATIENTS * Evidence of active febrile infection prior to blood draw. * Women who are pregnant or breast-feeding. * History of an allogeneic bone marrow, stem cell transplant, or solid organ transplant. * Judgment by the Investigator or study staff of any other reason that would prohibit the inclusion of the subject in the study. CANCER COHORT * Subjects newly diagnosed with a hematologic malignancy, primary central nervous system tumor, prostate cancer, or skin cancer (including melanoma). * History of, or currently receiving, systemic or definitive cancer treatment including curative surgical resection, chemotherapy, radiation therapy, immunotherapy, and hormone therapy. NON-CANCER COHORT • None

Design outcomes

Primary

MeasureTime frameDescription
Study Data and Samples Were Used for CancerSEEK Assay Development6 monthsThe primary objective of the study is to collect blood samples from known cancer and non cancer participants. These blood samples were used to calibrate the CancerSEEK assay. There was no pre-defined performance threshold.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cancer Cohort
Subjects interested in the cancer cohort, will sign an informed consent, complete an optional survey, and have 60mLs of blood draw by a licensed phlebotomist.
727
Non-Cancer Cohort
Subjects interested in the non-cancer cohort, will sign an informed consent, complete an optional survey, and have 60mLs of blood draw by a licensed phlebotomist.
3,893
Total4,620

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyConsent withdrawn51241
Overall StudyIncomplete study visit0367
Overall StudyLost to Follow-up50902
Overall StudyParticipant eligibility changed10619
Overall StudyProtocol Violation325
Overall StudySCRI confirmed to be withdrawal016

Baseline characteristics

CharacteristicCancer CohortNon-Cancer CohortTotal
Age, Continuous65 years
STANDARD_DEVIATION 9
62 years
STANDARD_DEVIATION 8
62 years
STANDARD_DEVIATION 8
Race/Ethnicity, Customized
Race
Asian/Pacific Islander
3 Participants53 Participants56 Participants
Race/Ethnicity, Customized
Race
Black
83 Participants316 Participants399 Participants
Race/Ethnicity, Customized
Race
Missing
104 Participants85 Participants189 Participants
Race/Ethnicity, Customized
Race
Native American/Alaskan
1 Participants14 Participants15 Participants
Race/Ethnicity, Customized
Race
Other
11 Participants65 Participants76 Participants
Race/Ethnicity, Customized
Race
White
525 Participants3360 Participants3885 Participants
Region of Enrollment
United States
727 participants3893 participants4620 participants
Sex: Female, Male
Female
451 Participants2374 Participants2825 Participants
Sex: Female, Male
Male
257 Participants1512 Participants1769 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 7270 / 3,893
other
Total, other adverse events
0 / 7270 / 3,893
serious
Total, serious adverse events
0 / 7270 / 3,893

Outcome results

Primary

Study Data and Samples Were Used for CancerSEEK Assay Development

The primary objective of the study is to collect blood samples from known cancer and non cancer participants. These blood samples were used to calibrate the CancerSEEK assay. There was no pre-defined performance threshold.

Time frame: 6 months

Population: Blood samples collected to be used to calibrate the CancerSEEK assay.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cancer CohortStudy Data and Samples Were Used for CancerSEEK Assay DevelopmentNot withdrawn, With Blood Draw712 Participants
Cancer CohortStudy Data and Samples Were Used for CancerSEEK Assay DevelopmentWithdrawn, With Blood Draw (lost to follow up)5 Participants
Cancer CohortStudy Data and Samples Were Used for CancerSEEK Assay DevelopmentWithdrawn after Blood Draw10 Participants
Non-Cancer CohortStudy Data and Samples Were Used for CancerSEEK Assay DevelopmentNot withdrawn, With Blood Draw3870 Participants
Non-Cancer CohortStudy Data and Samples Were Used for CancerSEEK Assay DevelopmentWithdrawn, With Blood Draw (lost to follow up)14 Participants
Non-Cancer CohortStudy Data and Samples Were Used for CancerSEEK Assay DevelopmentWithdrawn after Blood Draw9 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026