NCT06078709 · Mayo Clinic
Preoperative Hypofractionated Radiotherapy With FOLFOX for Esophageal or Gastroesophageal Junction Adenocarcinoma
(PHOX)
What this study is about
This phase II trial tests how well preoperative (prior to surgery) radiation therapy with fluorouracil, oxaliplatin, and leucovorin calcium (FOLFOX) works for the treatment of stage I-III esophageal or gastroesophageal junction adenocarcinoma.
View original scientific description
This phase II trial tests how well preoperative (prior to surgery) radiation therapy with fluorouracil, oxaliplatin, and leucovorin calcium (FOLFOX) works for the treatment of stage I-III esophageal or gastroesophageal junction adenocarcinoma. Hypofractionated radiation therapy delivers higher doses of radiation therapy over a shorter period of time and may kill more tumor cells and have fewer side effects.
Interventions
PROCEDURE
Biospecimen Collection
Undergo blood sample collection
PROCEDURE
Computed Tomography
Undergo CT and PET/CT scan
PROCEDURE
Endoscopic Ultrasound
Undergo EUS
PROCEDURE
Esophagogastroduodenoscopy
Undergo EGD
DRUG
Fluorouracil
Given IV
RADIATION
Hypofractionated Radiation Therapy
Undergo hypofractionated radiation therapy
DRUG
Leucovorin Calcium
Given IV
DRUG
Oxaliplatin
Given IV
PROCEDURE
Positron Emission Tomography
Undergo PET and PET/CT scan
OTHER
Survey Administration
Ancillary studies
DRUG
Docetaxel
Given IV
BIOLOGICAL
Durvalumab
Given IV
Primary outcome measures
Pathologic complete response
Time frame: Up to 5 years after completion of chemoradiation
A single-group design will be used to test whether the proportion is potentially non-inferior, with a non-inferiority proportion (P0) of 0.13 (H0: P ≤ 0.13 versus H1: P \> 0.13).
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
- Histological confirmation of esophageal or gastroesophageal junction adenocarcinoma, American Joint Committee on Cancer (AJCC) 8th edition stage T1-4N0-3M0
- Candidate for trimodality therapy: neoadjuvant chemo (immuno) therapy, chemoradiation, and esophagectomy
- Surgical consultation has confirmed that patient is an appropriate candidate for esophagectomy
- Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1
- Negative pregnancy test done ≤ 7 days prior to chemotherapy, for women of childbearing potential only
- Ability to provide written informed consent and complete questionnaire(s) by themselves or with assistance
- Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)
- Willing to provide blood and tissue samples for correlative research purposes
Exclusion criteria
- Clinical or biopsy-proven distant metastatic disease (AJCC 8th edition stage TanyNanyM1)
Where
- Scottsdale, Arizona
- Jacksonville, Florida
- Rochester, Minnesota
Related conditions & keywords
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 Apr 20, 2026 · Source of record for eligibility and locations