NCT05059444 · Guardant Health, Inc.
ORACLE: Observation of ResiduAl Cancer With Liquid Biopsy Evaluation
(ORACLE)
What this study is about
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.
View original scientific 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.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- 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 5 years as outlined in the study protocol and informed consent AND
- Have at least one Landmark blood sample 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: Invasive squamous cell carcinoma of the head and neck (Includes stage I-IVB oral cavity, oropharynx, hypopharynx, larynx, nasopharynx, nasal cavity, and paranasal sinus cancers),
- Cohort 9: High-risk epithelial ovarian or Fallopian tube carcinoma (Defined as FIGO stage IC-III or stage IA-IB that has high grade or clear cell histology),
- Cohort 10: High-risk endometrial carcinoma (Defined as 2023 FIGO Stage II-III),
- Cohort 11: High-risk renal cell carcinoma (Defined as high grade (grade 3-4) stage II, stage III or limited (resectable) stage IV treated with curative intent) Exploratory Cohort
- Cohort 12: 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
Exclusion criteria
- 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, 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)
Where
- Birmingham, Alabama
- Chandler, Arizona
- Hot Springs, Arkansas
- La Jolla, California
- Newport Beach, California
- Redwood City, California
- Sacramento, California
- Aurora, Colorado
- Hollywood, Florida
- Lakeland, Florida
- New Orleans, Louisiana
- Shreveport, Louisiana
And 21 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Aug 22, 2025 · Source of record for eligibility and locations