NCT04615013

Brief Summary

The purpose of this Phase I study is to determine the recommended phase 2 dose (RP2D) and safety profile of NBTXR3 activated by radiation therapy with concurrent chemotherapy for the treatment of patients with esophageal adenocarcinoma. NBTXR3 is a drug that when activated by radiation therapy, may cause targeted destruction of cancer cells. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Chemotherapy drugs, such as oxaliplatin, fluorouracil, capecitabine, docetaxel, paclitaxel, and carboplatin, 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. Giving NBTXR3 activated by radiation therapy with concurrent chemotherapy may help control the disease.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
24

participants targeted

Target at P25-P50 for phase_1

Timeline
18mo left

Started Nov 2020

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress79%
Nov 2020Oct 2027

First Submitted

Initial submission to the registry

October 1, 2020

Completed
1 month until next milestone

First Posted

Study publicly available on registry

November 4, 2020

Completed
19 days until next milestone

Study Start

First participant enrolled

November 23, 2020

Completed
6.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2027

Last Updated

April 16, 2026

Status Verified

April 1, 2026

Enrollment Period

6.9 years

First QC Date

October 1, 2020

Last Update Submit

April 13, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Incidence of dose limiting toxicities (DLTs)

    Will be coded and graded according to National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5 criteria. Descriptive summary tables will be produced, providing the DLTs by initial planned dose level of NBTXR3, initial planned volume of NBTXR3 to be injected, the injected volume, the radiation therapy dose given and the details of the concurrent chemotherapy given.

    Up to end of treatment visit (day 85)

  • Maximum tolerated dose and recommended phase 2 dose (RP2D)

    The Bayesian Optimal Interval design, with accelerated titration, will be used to identify RP2D.

    Up to end of treatment visit (day 85)

Secondary Outcomes (8)

  • Incidence of NBTXR3/radiation therapy related late onset toxicities

    From end of treatment visit (day 85) until end of study (1 year)

  • Feasibility of NBTXR3 injection in the esophageal tumor and involved regional lymph nodes

    Up to 1 year

  • Objective response rate

    Up to 1 year

  • Major pathological response rate

    Up to 1 year

  • Local progression-free survival

    From NBTXR3 injection to locoregional (i.e., within the esophagus or regional nodes) disease recurrence, local progression confirmed radiographically (RECIST v1.1), or death from any cause, whichever occurs first, assessed up to 1 year

  • +3 more secondary outcomes

Other Outcomes (11)

  • Time-course dependent presence of hafnium in blood and urine following NBTXR3 intratumoral/intranodal injection

    Up to 4 hrs post NBTXR3 injection

  • Disease control rate

    At 6 months post NBTXR3

  • R-status

    Up to 1 year

  • +8 more other outcomes

Study Arms (1)

Treatment (NBTXR3, IMRT, chemotherapy)

EXPERIMENTAL

Patients receive NBTXR3 IT or IN on day 1. Beginning day 15, patients undergo IMRT 5 days per week for 6 weeks for a total of 28 fractions, in the absence of disease progression or unacceptable toxicity. Concurrent with IMRT, patients receive a chemotherapy regimen consisting of either fluorouracil and oxaliplatin with or without leucovorin, oxaliplatin and capecitabine, docetaxel and fluorouracil with or without leucovorin, docetaxel and paclitaxel, or carboplatin and paclitaxel per physician discretion.

Drug: CapecitabineDrug: CarboplatinDrug: DocetaxelDrug: FluorouracilOther: Hafnium Oxide-containing Nanoparticles NBTXR3Radiation: Intensity-Modulated Radiation TherapyDrug: LeucovorinDrug: OxaliplatinDrug: Paclitaxel

Interventions

Not applicable to this study

Also known as: Ro 09-1978/000, Xeloda
Treatment (NBTXR3, IMRT, chemotherapy)

Not applicable to this study

Also known as: Blastocarb, Carboplat, Carboplatin Hexal, Carboplatino, Carboplatinum, Carbosin, Carbosol, Carbotec, CBDCA, Displata, Ercar, JM-8, Nealorin, Novoplatinum, Paraplatin, Paraplatin AQ, Paraplatine, Platinwas, Ribocarbo
Treatment (NBTXR3, IMRT, chemotherapy)

Not applicable to this study

Also known as: Docecad, RP56976, Taxotere, Taxotere Injection Concentrate
Treatment (NBTXR3, IMRT, chemotherapy)

Not applicable to this study

Also known as: 5 Fluorouracil, 5 Fluorouracilum, 5 FU, 5-Fluoro-2,4(1H, 3H)-pyrimidinedione, 5-Fluorouracil, 5-Fluracil, 5-Fu, 5FU, AccuSite, Carac, Fluoro Uracil, Fluouracil, Flurablastin, Fluracedyl, Fluracil, Fluril, Fluroblastin, Ribofluor, Ro 2-9757, Ro-2-9757
Treatment (NBTXR3, IMRT, chemotherapy)

Given IT or IN

Also known as: NBTXR3
Treatment (NBTXR3, IMRT, chemotherapy)

Undergo IMRT

Also known as: IMRT, Intensity Modulated RT, Intensity-Modulated Radiotherapy, Radiation, Intensity-Modulated Radiotherapy
Treatment (NBTXR3, IMRT, chemotherapy)

Not applicable to this study

Also known as: Folinic acid
Treatment (NBTXR3, IMRT, chemotherapy)

Not applicable to this study

Also known as: 1-OHP, Ai Heng, Aiheng, Dacotin, Dacplat, Diaminocyclohexane Oxalatoplatinum, Eloxatin, Eloxatine, JM-83, Oxalatoplatin, Oxalatoplatinum, RP 54780, RP-54780, SR-96669
Treatment (NBTXR3, IMRT, chemotherapy)

Not applicable to this study

Also known as: Anzatax, Asotax, Bristaxol, Praxel, Taxol, Taxol Konzentrat
Treatment (NBTXR3, IMRT, chemotherapy)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Biopsy proven adenocarcinoma of the cervical or thoracic esophagus or gastroesophageal junction
  • Adenocarcinoma of the esophagus stages II-III allowed
  • Medically able to receive chemoradiation. Following chemotherapy regimens are allowed:
  • Oxaliplatin and fluorouracil (5-FU) or capecitabine
  • Docetaxel and/or 5-FU or paclitaxel
  • Carboplatin and paclitaxel
  • Amenable to undergo the endoscopic ultrasound (EUS) guided injection of NBTXR3 as determined by the investigator or treating physician
  • Patients with lesions for which the EUS scope is not able to traverse the tumor are allowed on this trial as long as an injection can be performed as per treating physician's discretion
  • Has at least 1 and up to 4 target lesion(s) in the esophagus that are measurable on cross sectional imaging and repeated measurements (via Response Evaluation Criteria in Solid Tumors \[RECIST\] version \[v\] 1.1) at the same anatomical location should be achievable
  • Local nodal disease around the esophagus allowed
  • Nodal target lesions must be \>= 15 mm (short axis) based on computed tomography (CT) (slice thickness of 5 mm or less) or magnetic resonance imaging (MRI)
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-2
  • Hemoglobin \>= 8.0 g/dL
  • Absolute neutrophil count (ANC) \>= 1,500/mm\^3
  • Platelet count \>= 100,000/mm\^3
  • +7 more criteria

You may not qualify if:

  • Prior radiation or any therapy for the treatment of esophageal cancer
  • Prior surgical resection of esophageal tumor
  • Esophageal cancer with radiographic evidence of metastases at screening
  • At screening, past medical history of:
  • Esophageal fistula
  • Tracheoesophageal fistula
  • Siewert type III tumors
  • Evidence of bulky disease and/or abutment of tumor above the carina that may result in tracheoesophageal fistulas as determined by the investigator or treating physician
  • Tumors above the carina without defacement of the fat plane between tumor and the airway are allowed
  • Known uncontrolled (grade \>= 2) or active esophageal or gastric ulcer disease within 28 days of enrollment
  • Known contraindication to iodine-based or gadolinium-based intravenous (IV) contrast
  • Active malignancy, in addition to esophageal cancer except for basal cell carcinoma of the skin or non-metastatic low risk prostate cancer definitively treated and relapse free within at least 3 months from time of screening
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, renal failure, cardiac arrhythmia, or psychiatric illness that would limit compliance with treatment
  • Known active, uncontrolled (high viral load) human immunodeficiency virus (HIV) or hepatitis B or hepatitis C infection
  • Female patients who are pregnant or breastfeeding
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

M D Anderson Cancer Center

Houston, Texas, 77030, United States

RECRUITING

Related Links

MeSH Terms

Interventions

CapecitabineCarboplatinDocetaxelFluorouracildehydroftorafurRadiotherapy, Intensity-ModulatedLeucovorinOxaliplatinPaclitaxelTaxes

Intervention Hierarchy (Ancestors)

DeoxycytidineCytidinePyrimidine NucleosidesPyrimidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsUracilPyrimidinonesDeoxyribonucleosidesNucleosidesNucleic Acids, Nucleotides, and NucleosidesCoordination ComplexesOrganic ChemicalsTaxoidsCyclodecanesCycloparaffinsHydrocarbons, AlicyclicHydrocarbons, CyclicHydrocarbonsDiterpenesTerpenesRadiotherapy, ConformalRadiotherapy, Computer-AssistedRadiotherapyTherapeuticsFormyltetrahydrofolatesTetrahydrofolatesFolic AcidPterinsPteridinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingCoenzymesEnzymes and CoenzymesEconomicsHealth Care Economics and Organizations

Study Officials

  • Steven H Lin

    M.D. Anderson Cancer Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 1, 2020

First Posted

November 4, 2020

Study Start

November 23, 2020

Primary Completion (Estimated)

October 31, 2027

Study Completion (Estimated)

October 31, 2027

Last Updated

April 16, 2026

Record last verified: 2026-04

Locations