Testing the Addition of the Anti-cancer Viral Therapy Telomelysin™ to Chemoradiation for Patients With Advanced Esophageal Cancer and Are Not Candidates for Surgery

Running, not enrolling · Phase 1

Conditions studied: Advanced Esophageal Adenocarcinoma, Advanced Gastroesophageal Junction Adenocarcinoma, Clinical Stage II Esophageal Adenocarcinoma AJCC v8, Clinical Stage II Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage IIA Esophageal Adenocarcinoma AJCC v8, Clinical Stage IIA Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage IIB Esophageal Adenocarcinoma AJCC v8, Clinical Stage IIB Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage III Esophageal Adenocarcinoma AJCC v8, Clinical Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage II Esophageal Adenocarcinoma AJCC v8, Pathologic Stage II Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage IIA Esophageal Adenocarcinoma AJCC v8, Pathologic Stage IIA Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage IIB Esophageal Adenocarcinoma AJCC v8, Pathologic Stage IIB Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage III Esophageal Adenocarcinoma AJCC v8, Pathologic Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage IIIA Esophageal Adenocarcinoma AJCC v8, Pathologic Stage IIIA Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage IIIB Esophageal Adenocarcinoma AJCC v8, Pathologic Stage IIIB Gastroesophageal Junction Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage II Esophageal Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage II Gastroesophageal Junction Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage III Esophageal Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage IIIA Esophageal Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage IIIA Gastroesophageal Junction Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage IIIB Esophageal Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage IIIB Gastroesophageal Junction Adenocarcinoma AJCC v8, Unresectable Gastroesophageal Junction Adenocarcinoma, Squamous Cell Carcinoma, Squamous Cell Cancer

In brief

This phase I trial studies the side effects of OBP-301 when given together with carboplatin, paclitaxel, and radiation therapy in treating patients with esophageal or gastroesophageal cancer that invades local or regional structures. OBP-301 is a virus that has been designed to infect and destroy tumor cells (although there is a small risk that it can also infect normal cells). Chemotherapy drugs, such as carboplatin and paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving OBP-301 with chemotherapy and radiation therapy may work better than standard chemotherapy and radiation therapy in treating patients with esophageal or gastroesophageal cancer.

Key facts

Study ID: NCT04391049
Run by: NRG Oncology
People needed: 16
Starts: 2021-12-02
Expected to finish: 2026-10-01
Last updated by the study team: 2026-06-24

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

Pathologically (histologically or cytologically) proven diagnosis of adenocarcinoma or squamous cell carcinoma (SCC) of the esophagus or gastroesophageal junction (GEJ) within 90 days prior to registration
Gastroesophageal junction tumors must be Siewert type I/II
Required diagnostic workup for study entry:
History/physical examination prior to registration
Computed tomography (CT) of the chest/abdomen with intravenous contrast within 28 days prior to registration; If CT contrast is contraindicated magnetic resonance imaging (MRI) of the chest/abdomen without contrast is permitted
Bronchoscopy for squamous cell carcinoma (SCC) tumors that are adjacent to the airway to exclude a tracheoesophageal fistula within 42 days prior to registration
Endoscopic ultrasound (if technically feasible) within 90 days prior to registration
Whole body positron emission tomography (PET)/CT scan within 42 days prior to registration: Note: scan will be used for radiation treatment planning, in addition to ruling out metastatic disease
Eastern Cooperative Oncology Group (ECOG) performance status of 0-2 within 14 days prior to registration
Adequate hematologic function within 14 days prior to registration defined as follows Absolute neutrophil count ≥ 1,500/mcL (within 14 days prior to registration) Hemoglobin ≥ 9 gm/dL (within 14 days prior to registration) Platelets ≥ 100,000/mcL (within 14 days prior to registration)
Adequate renal function within 14 days prior to registration defined as follows Creatinine clearance of ≥ 50 ml/min (as calculated by Cockcroft-Gault equation) (within 14 days prior to registration)
Total bilirubin ≤ 1.5 x upper limit of normal (ULN) (within 14 days prior to registration)
AST/ALT ≤ 2.5 x ULN
Patients for whom non-operative management is a viable option in the opinion of a thoracic surgeon and/or multidisciplinary team and are candidates for chemoradiation; this does not preclude patients from receiving surgery after chemoradiation if felt to me medically indicated;
Patients must, in the opinion of a treating gastroenterologist, have a tumor that is amenable to intratumoral injection with at least 1 mL (1 x 10\^12 vp/mL) of OBP-301 and be a candidate for 3 endoscopy procedures
Female patients of child bearing potential must have a negative serum/urine pregnancy test within 14 days prior to study entry. A female not of childbearing potential is one who has undergone a hysterectomy, bilateral oophorectomy, tubal ligation, or who has had no menses for 12 consecutive months
Patients of reproductive potential must agree to use effective contraception for the duration of study treatment as well as 6 months (for women) or 12 months (for men) after the last administered injection of OBP-301. Effective contraception includes oral contraceptives, implantable hormonal contraception, double-barrier method or intrauterine device
The patient must provide study-specific informed consent prior to study entry
Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial
Known acute or chronic hepatitis B or C infection (testing not required prior to study entry in patients with no known history of hepatitis B or C)
For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
For patients with a history of hepatitis C virus (HCV) infection, they must (i) have been treated and cured, (ii) for patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months prior to study entry are eligible for this trial

You may not qualify if…

Definitive clinical or radiologic evidence of metastatic disease including:
Positive malignant cytology of the pleura, pericardium or peritoneum
Radiographic evidence of involvement of any adjacent mediastinal structure, e.g. aorta, trachea, which would increase the risk of repeated endoscopic interventions
Tracheoesophageal fistula
Radiographic evidence of distant organ involvement
Non-regional lymph nodes that cannot be contained within a radiation field
More than 1 esophageal lesion
Prior systemic chemotherapy for the study cancer
Prior radiotherapy to the region of the study cancer that would result in overlap of radiation therapy fields
Biopsy-proven tumor invasion of the tracheobronchial tree or presence of tracheoesophageal fistula or recurrent laryngeal or phrenic nerve paralysis
For patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, a New York Heart Association functional classification 2C or worse
Uncontrolled diabetes
Infection requiring IV antibiotics at the time of registration
Patients requiring immunosuppressive medications including chronic suppressive steroid therapy (greater than the equivalent of 20 mg/day of prednisone), methotrexate, azathioprine and TNF-alpha blockers within 7 days prior to study entry
Received live vaccine within 30 days prior to registration
Received a blood transfusion, hematopoietic agent; granulocyte-colony stimulating factor (G-CSF), and/or oxygen supplementation within 7 days before the screening lab
Breast feeding females

Where it is running

City of Hope Comprehensive Cancer Center — Duarte, California, United States
City of Hope South Pasadena — South Pasadena, California, United States
City of Hope Upland — Upland, California, United States
Moffitt Cancer Center — Tampa, Florida, United States
University of Kansas Clinical Research Center — Fairway, Kansas, United States
University of Kansas Cancer Center — Kansas City, Kansas, United States
University of Kansas Hospital-Westwood Cancer Center — Westwood, Kansas, United States
Massachusetts General Hospital Cancer Center — Boston, Massachusetts, United States
Memorial Sloan Kettering Basking Ridge — Basking Ridge, New Jersey, United States
Memorial Sloan Kettering Monmouth — Middletown, New Jersey, United States
Memorial Sloan Kettering Bergen — Montvale, New Jersey, United States
Memorial Sloan Kettering Commack — Commack, New York, United States
Memorial Sloan Kettering Westchester — Harrison, New York, United States
Memorial Sloan Kettering Cancer Center — New York, New York, United States
Memorial Sloan Kettering Nassau — Uniondale, New York, United States
Ohio State University Comprehensive Cancer Center — Columbus, Ohio, United States
UT MD Anderson Cancer Center — Houston, Texas, United States

Full record on ClinicalTrials.gov

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