A Phase 2 Study Adding Ascorbate to Chemotherapy and Radiation Therapy for NSCLC
XACT-LUNG
A Phase 2 Trial of Pharmacological Ascorbate With Concurrent Chemotherapy and Radiation Therapy for Non-small Cell Lung Cancer
4 other identifiers
interventional
43
1 country
1
Brief Summary
This clinical trial evaluates adding high-dose ascorbate (vitamin C) to a standard therapy for non-small cell lung cancer. The standard therapy is radiation therapy combined with carboplatin and paclitaxel (types of chemotherapy). All subjects will receive high-dose ascorbate in addition to the standard therapy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Nov 2018
Longer than P75 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 14, 2016
CompletedFirst Posted
Study publicly available on registry
September 19, 2016
CompletedStudy Start
First participant enrolled
November 16, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 15, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2027
ExpectedMarch 25, 2026
March 1, 2026
6.7 years
September 14, 2016
March 24, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Progression rate at completion of radiation and chemotherapy
Tumor measurement from CT scan, using the RECIST criteria to define progression
3 to 4 weeks after last radiation treatment
Secondary Outcomes (4)
Tumor response
Every six months for up to 20 years post-treatment
Progression free survival (PFS)
Every six months for up to 20 years post-treatment
Overall survival (OS)
Every three months for up to 20 years post-treatment
Adverse event frequency and categorization
Weekly for the first 7 weeks, then monthly for 3 months, then every 6 months through 2 years post-treatment
Study Arms (1)
ChemoRT + Ascorbate
EXPERIMENTALRadiation therapy, intravenous paclitaxel, intravenous carboplatin, intravenous ascorbic acid (pharmacological ascorbate)
Interventions
Conformal radiation administered daily, Monday through Friday Total dose is 60 Gray (Gy) and is delivered in 2 Gy fractions. One fraction is delivered daily for a total of 30 fractions in 30 days
Administered intravenously (IV) Given the same day as carboplatin, but given before the carboplatin is administered * the dose is 45 mg/m2 (standard dose) * Administered weekly * 6 to 7 weeks of therapy, depending on when radiation starts * Standardized dose reductions are used
Administered intravenously (IV) GIven the same day as paclitaxel, immediately after the paclitaxel infusion is done. * Prescribed at area-under-the-curve (AUC) = 2 using the Cockroft-Gault formula (standard) * Administered weekly * 6 to 7 weeks of therapy, depending on when radiation starts * Standard dose reductions are used
Administered intravenously * 75 grams per infusion; each infusion is about 2 hours * 3 infusion per calendar week * The infusion is actively running for at least 20 minutes when radiation begins * May be given while chemotherapy is delayed due to low counts * Dose reductions are not used * Given for 6 to 7 weeks, depending on when radiation starts
Eligibility Criteria
You may qualify if:
- Note: patients who have a small pleural effusion that is too small to safety tap and is not visible on a chest x-ray are still eligible
- Pathologic diagnosis (i.e., cell sample, biopsy, tissue swap, bronchoscopy) of non-small cell lung cancer.
- Recommended to receive carboplatin \& paclitaxel with radiation therapy as a treatment
- Tumor or metastatic disease must measure at least 1 cm using a CT scan (CAT scan)
- Physician determined the patient is healthy enough for chemotherapy and radiation therapy
- At least part of the lung cancer must be viewable and measurable by CT or MRI
- A platelet count of at least 100,000 cells per mililiter
- A creatinine level of less than 1 1/2 times the upper limit of normal for the local lab test, or, a creatinine clearance of at least 60 mL/(min\*1.73m2)
- Not pregnant, and commit to using birth control during the study
You may not qualify if:
- Exudative pleural effusion
- Recurrent non-small cell lung cancer
- Glucose-6-phosphate dehydrogenase (G6PD) deficiency
- Patients actively receiving insulin or patients whose doctors have recommended current insulin use
- Patients requiring daily finger-stick blood glucose measurements
- Patients who are on the following drugs and cannot have a substitution or who decline the substitution:
- warfarin
- flecainide
- methadone
- amphetamines
- quinidine
- chlorpropamide
- Prior radiation therapy that would result in a field overlap
- Enrolled in another therapeutic clinical trial
- Uncontrolled, intercurrent illness
- +3 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Joseph J. Cullen, MD, FACSlead
- National Institutes of Health (NIH)collaborator
- National Cancer Institute (NCI)collaborator
- Holden Comprehensive Cancer Centercollaborator
Study Sites (1)
Holden Comprehensive Cancer Cener
Iowa City, Iowa, 52242, United States
Related Publications (1)
Schoenfeld JD, Sibenaller ZA, Mapuskar KA, Wagner BA, Cramer-Morales KL, Furqan M, Sandhu S, Carlisle TL, Smith MC, Abu Hejleh T, Berg DJ, Zhang J, Keech J, Parekh KR, Bhatia S, Monga V, Bodeker KL, Ahmann L, Vollstedt S, Brown H, Shanahan Kauffman EP, Schall ME, Hohl RJ, Clamon GH, Greenlee JD, Howard MA, Schultz MK, Smith BJ, Riley DP, Domann FE, Cullen JJ, Buettner GR, Buatti JM, Spitz DR, Allen BG. O2â‹…- and H2O2-Mediated Disruption of Fe Metabolism Causes the Differential Susceptibility of NSCLC and GBM Cancer Cells to Pharmacological Ascorbate. Cancer Cell. 2017 Apr 10;31(4):487-500.e8. doi: 10.1016/j.ccell.2017.02.018. Epub 2017 Mar 30.
PMID: 28366679BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Joseph J Cullen, MD, FACS
University of Iowa
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor, Department of Radiation Oncology
Study Record Dates
First Submitted
September 14, 2016
First Posted
September 19, 2016
Study Start
November 16, 2018
Primary Completion
July 15, 2025
Study Completion (Estimated)
December 31, 2027
Last Updated
March 25, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- Upon request.
- Access Criteria
- Contact the investigator or sub-investigator to initiate a request. A contract may be required between institutions. Data will be shared only from those participants who consented to sharing.
Individual participant data will be shared upon request in compliance with the IRB application and protocol.