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Blood test to detect returning cancer after treatment of early-stage solid tumors

Tests a tumor DNA blood test for detecting returning cancer after treatment.

Plain-language title generated from the registry record
Registry title: ORACLE: Observation of ResiduAl Cancer With Liquid Biopsy Evaluation

Key facts

Where
Appleton, Aurora, Birmingham, Boston, Broomall, Chandler, Chapel Hill, Cincinnati, Cleveland, Dallas, East Brunswick, Edinburg, Forth Worth, Grand Rapids, Hollywood, Hot Springs, La Jolla, Lakeland, Lewiston, Myrtle Beach, New Orleans, New York, Newport Beach, Philadelphia, Redwood City, Rochester, Rock Hill, Sacramento, Salt Lake City, San Antonio, Shreveport, Toledo, and York, United StatesSee the 33 sites

AI summary: who the study is looking for

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults treated with the aim of removing early-stage solid tumors. A blood test for tumor DNA is checked against recurrence of the cancer.

Age
Older than 18 years.
Sex
All sexes can join.
Disease stage
Several cancer types in early stages are accepted, for example muscle invasive bladder cancer (stage II-III), non-small cell lung cancer (stage IB-III) and colon cancer (stage II-III). The cancer must be confirmed by tissue examination.
Earlier treatment
First treatment was given to remove all of the disease. Participants have at least one blood sample taken 3-12 weeks after surgery, chemotherapy or radiation.
Biomarker or test result
Breast cancer cohorts need known hormone receptor and HER2 status. No other test result is asked for.

Main reasons for not taking part

  • History of an organ or tissue transplant from another person
  • Cancer that is mostly neuroendocrine
  • Another cancer diagnosed within 3 years before joining, with some exceptions
  • Known distant metastasis at enrolment, with exceptions for limited stage IV melanoma or renal cell carcinoma

Read by machine on 9 November 2026.

Where in United States

  • ThedaCare Regional Cancer CenterAppleton, United StatesTaking people
  • University of ColoradoAurora, United StatesTaking people
  • University of Alabama at BirminghamBirmingham, United StatesTaking people
  • Massachusetts General HospitalBoston, United StatesNo longer taking part
  • Crozer-Keystone Health SystemBroomall, United StatesNo longer taking part
  • Ironwood Cancer & Research CentersChandler, United StatesTaking people
  • UNC- Chapel HillChapel Hill, United StatesTaking people
  • The Christ Hospital Cancer CenterCincinnati, United StatesNo longer taking part
  • Cleveland ClinicCleveland, United StatesTaking people
  • UT Southwestern Medical CenterDallas, United StatesTaking people
  • Astera Cancer CareEast Brunswick, United StatesTaking people
  • DHR Health Advance Care CenterEdinburg, United StatesTaking people
  • The Center for Cancer and Blood DisordersForth Worth, United StatesTaking people
  • Cancer & Hematology Centers of Western MichiganGrand Rapids, United StatesTaking people
  • Memorial Healthcare SystemHollywood, United StatesTaking people
  • Genesis Cancer CenterHot Springs, United StatesNo longer taking part
  • University of California San DiegoLa Jolla, United StatesTaking people
  • The Oncology Institute of Hope & InnovationLakeland, United StatesTaking people
  • Central Maine Medical CenterLewiston, United StatesNo longer taking part
  • Carolina Urologic Research CenterMyrtle Beach, United StatesTaking people
  • Tulane Cancer CenterNew Orleans, United StatesTaking people
  • Icahn School of Medicine at Mount SinaiNew York, United StatesNo longer taking part
  • Hoag Memorial Hospital PresbyterianNewport Beach, United StatesTaking people
  • University of PennsylvaniaPhiladelphia, United StatesTaking people
  • Redwood CityRedwood City, United StatesTaking people
  • Mayo Clinic - RochesterRochester, United StatesTaking people
  • Carolina Blood and Cancer Care AssociatesRock Hill, United StatesNo longer taking part
  • Sutter Institute for Medical ResearchSacramento, United StatesNo longer taking part
  • Utah Cancer SpecialistsSalt Lake City, United StatesTaking people
  • The University of Texas Health Science Center at San AntonioSan Antonio, United StatesTaking people
  • Christus Highland/ BoniolShreveport, United StatesTaking people
  • Toledo Clinic Cancer CenterToledo, United StatesTaking people
  • WellSpan Medical Oncology & Hematology at York Cancer CenterYork, United StatesTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
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Trial details

Who runs it
Guardant Health, Inc.
Trial code
NCT05059444
Record updated
14 September 2026
Original description
The purpose of ORACLE is to demonstrate the ability of a novel ctDNA assay developed by Guardant Health to detect recurrence in individuals treated for early-stage solid tumors. It is necessary that ctDNA test results are linked to clinical outcomes in order to demonstrate clinical validity for recurrence detection and explore its value in a healthcare environment subject to cost containment.Read full original descriptionShow less

ORACLE: Observation of ResiduAl Cancer With Liquid Biopsy Evaluation

The purpose of ORACLE is to demonstrate the ability of a novel ctDNA assay developed by Guardant Health to detect recurrence in individuals treated for early-stage solid tumors. It is necessary that ctDNA test results are linked to clinical outcomes in order to demonstrate clinical validity for recurrence detection and explore its value in a healthcare environment subject to cost containment.

Inclusion: Age > 18 years old AND; Initial treatment is given with curative/radical intent AND; Are planning to undergo regular follow-up and monitoring for cancer recurrence per standard of care at the enrolling site AND; Provided written informed consent to participate in the study AND; Are willing to have de-identified clinical data shared with investigators at regular intervals as outlined in the study protocol and informed consent AND; Are willing to provide blood samples at enrollment and at subsequent clinical visits coinciding with standard of care follow-up, for up to 3 years as outlined in the study protocol and informed consent AND; Have at least one Landmark blood sample collected. Landmark samples are collected 3-12 weeks after surgery, chemotherapy and/or radiation/chemoradiation as applicable based on the participant's planned treatment regimen; Have a histologically confirmed Index Cancer that qualifies for inclusion, defined as:; Primary Study Cohorts; Cohort 1: Cohort 1: Muscle invasive carcinoma of the bladder, ureter, or renal pelvis (stage II-III),; Cohort 2: Cohort 2: Non-small cell lung cancer (stage IB-III):; Cohort 2A: Resectable OR Cohort 2B: Unresectable,; Cohort 3: Invasive breast carcinoma with hormone receptor (e.g. estrogen receptor (ER) and progesterone receptor (PR) expression) and human epidermal growth factor receptor 2 (HER2) status known and one the following:; Cohort 3A: High-risk2 HER2+ breast cancer (any ER, PR status allowed) OR Cohort 3B: High-risk2 triple negative breast cancer (TNBC) OR Cohort 3C: High-risk3 HR-positive/HER2-negative invasive breast carcinoma,; Cohort 4: Stage IIB-III cutaneous melanoma or limited (resectable) stage IV melanoma treated with curative intent,; Cohort 5: Esophageal or gastroesophageal junction carcinoma (stage II-III),; Cohort 6: Gastric adenocarcinoma (stage II-III),; Cohort 7: Pancreatic adenocarcinoma that is has been surgically resected or is eligible for surgical resection,; Cohort 8: Cohort 8: Invasive squamous cell carcinoma of the head and neck (includes stage I-IVB HPV-negative or stage III-IVB HPV-positive oral cavity, oropharynx, hypopharynx, larynx, nasopharynx, nasal cavity, or paranasal sinus),; Cohort 9: High-risk epithelial ovarian or Fallopian tube carcinoma (defined as FIGO stage IC-III, stage IA-IB that has high grade, carcinosarcoma, or clear cell histology),; Cohort 10: Endometrial carcinoma (2023 FIGO Stage II-III or 2023 FIGO Stage IC or any Stage I with p53 abnormal molecular subtype),; Cohort 11: High-risk renal cell carcinoma (Defined as high grade (grade 3-4) stage II, stage III or limited stage IV (meaning metastatic sites are considered treatable with curative intent); Cohort 12: Colorectal adenocarcinoma Cohort 12A: Pathologically confirmed adenocarcinoma of the rectum (located up to 15 cm from the anal verge) that is undergoing or underwent a preoperative chemotherapy-or immunotherapy- containing regimen OR Cohort 12B: Colon adenocarcinoma (stage II-III).

Exclusion: History of allogeneic organ or tissue transplant; Index cancer has predominantly neuroendocrine histology; History of another primary cancer diagnosed within 3 years of enrollment, with the exception that in situ cancers, non-melanoma skin carcinomas, localized low- or intermediate risk prostate cancers (defined as cancers confined to the prostate with Gleason score of 7 or lower and prostate-specific antigen (PSA) of less than 20), and stage I papillary thyroid carcinoma, and participants with bilateral/multifocal tumors within the same organ (for example, bilateral breast cancer) are allowed if diagnosed within 3 years of enrollment; Known distant metastasis at time of enrollment (with the exception of participants with limited/resectable stage IV cutaneous melanoma or RCC).

ClinicalTrials.gov NCT05059444