NCT03546829

Brief Summary

The first phase of this study was an open label, randomized pilot study. Enrollment for this phase is now complete. The second phase is a single arm phase 1 safety study. Patients planned to undergo precision hypofractionated radiation to all sites of oligoprogression will receive vancomycin for 1 week before RT and for 1 month after start of RT, and asked to provide stool and blood samples as outlined in the Safety Trial study table.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
10

participants targeted

Target at below P25 for phase_1

Timeline
33mo left

Started Mar 2019

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 Progress73%
Mar 2019Dec 2028

First Submitted

Initial submission to the registry

May 23, 2018

Completed
14 days until next milestone

First Posted

Study publicly available on registry

June 6, 2018

Completed
9 months until next milestone

Study Start

First participant enrolled

March 5, 2019

Completed
8.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2028

Last Updated

January 14, 2026

Status Verified

January 1, 2026

Enrollment Period

8.8 years

First QC Date

May 23, 2018

Last Update Submit

January 13, 2026

Conditions

Outcome Measures

Primary Outcomes (3)

  • Randomized Pilot: Th1 immune response measured by cytokine expression (IFN gamma).

    The primary endpoint is IFN-gamma cytokine expression at Day 30 (+/- 2) collection compared to the pre-radiation level. It will be analyzed using generalized linear mixed models.

    2 years

  • Randomized Pilot: the safety of the addition of vancomycin to Stereotactic Body Radiotherapy

    The primary safety endpoint is uncontrolled diarrhea, as defined by CTCAE v4.0 \> or = grade 3 (Increase of \>=7 stools per day over baseline; incontinence; hospitalization indicated; severe increase in ostomy output compared to baseline; limiting self-care ADL). This will be evaluated during treatment and at 1 month, 3 months, 6 months and 12 months.

    2 years

  • Safety Trial: the safety of the addition of vancomycin to precision hypofractionated radiation

    Safety Trial: The primary safety endpoint is uncontrolled diarrhea, as defined by CTCAE v5.0 \> or = grade 3 Increase of \>=7 stools per day over baseline; hospitalization indicated; severe increase in ostomy output compared to baseline; limiting self care ADL). This will be evaluated weekly during vancomycin use and RT, at 1 month post-vancomycin, 3 months post-vancomycin, 6 months post-vancomycin and 12 months post-vancomycin.

    3 years

Study Arms (1)

Arm 1 - Experimental

EXPERIMENTAL

Patients planned to undergo precision hypofractionated radiation to all sites of oligoprogression will receive vancomycin for 1 week before RT and for 1 month after start of RT, and asked to provide stool and blood samples as outlined in the Safety Trial study table.

Drug: VancomycinRadiation: Precision hypofractionated radiation

Interventions

125 mg, 4x daily for 5 weeks

Arm 1 - Experimental

Patients planned to undergo precision hypofractionated radiation to all sites of oligoprogression and will receive vancomycin for 1 week before RT and for 1 month after start of RT, and asked to provide stool and blood samples as outlined in the Safety Trial study table.

Arm 1 - Experimental

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Randomized Pilot Inclusion * Patients planned to receive Stereotactic Body Radiotherapy (SBRT) to a biopsy-proven or clinically-suspected NSCLC * Age \>18 years' old * Patient capable of giving informed consent Randomized Pilot Exclusion * Use of antibiotics, antifungal, antivirals or antiparasitics during the 4 weeks prior to registration * Active infection with oral temperature \>100°F * Use of corticosteroids, methotrexate or immunosuppressive drugs during the 4 weeks prior to registration * Use of chemotherapy during the 4 weeks prior to radiotherapy or during radiotherapy. Chemotherapy cannot begin before the collection of the 30-day post treatment sample (S4). * Documented history of HIV, HBV or HCV * Active uncontrolled gastrointestinal disorders such as inflammatory bowel disease, moderate/severe irritable bowel syndrome, persistent, infectious gastroenteritis, colitis or gastritis, persistent or chronic diarrhea of unknown etiology, Clostridium Difficile infection (within 2 years of lung cancer diagnosis) or Helicobacter Pylori infection (untreated) * Major surgery of the GI tract, with the exception of cholecystectomy and appendectomy, in the past five years. Any major bowel resection at any time * Patients on anti-diarrheal medications * Patients on probiotics Safety Trial Inclusion * Patients planned to receive precision hypofractionated radiation (SBRT or an ablative dose of radiation is used if SBRT is not appropriate or if insurance does not approve - i.e. \> 30 Gy in 10 fraction equivalent) to all sites of oligoprogressive NSCLC who progressed after 1st line systemic therapy for metastatic disease which included immunotherapy or a tyrosine kinase inhibitors (TKI) for NSCLC * The number of sites of progression are \< 5 sites. * Age \>18 years' old * Patient capable of giving informed consent Safety Trial Exclusion * Evidence of untreated CNS or leptomeningeal disease * Use of antibiotics, antifungal, antivirals or antiparasitics during the 4 weeks prior to registration * Active infection with oral temperature \>100°F * Use of oral corticosteroids, methotrexate or immunosuppressive drugs during the 4 weeks prior to registration * Use of chemotherapy during the 4 weeks prior to radiotherapy or during radiotherapy. Chemotherapy cannot begin before the collection of the 30-day post treatment sample (S3). * Documented history of HIV, HBV or HCV * Patients on daily anti-diarrheal medications * Use of probiotics during the 4 weeks prior to radiotherapy or during radiotherapy

Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.

Sponsors & Collaborators

Study Sites (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

RECRUITING

Related Publications (1)

  • Feigenberg SJ, Costabile F, Tanes C, Bittinger K, O'Connor R, Agarwal D, Skoufos G, Salaris S, Hatzigeorgiou A, Kostopoulos N, Lloyd S, Friedes C, Chen L, Yegya-Raman N, Cengel K, Levin W, Valentic B, Quarton T, Shestov AA, Berman A, Bradley J, Maity A, Koumenis C, Ben-Josef E, Facciabene A. Enhancing outcomes in medically inoperable early-stage NSCLC with gut-targeted antibiotics and stereotactic body radiotherapy: results from a randomized pilot study. J Immunother Cancer. 2025 Jul 10;13(7):e011356. doi: 10.1136/jitc-2024-011356.

MeSH Terms

Interventions

Vancomycin

Intervention Hierarchy (Ancestors)

GlycopeptidesGlycoconjugatesCarbohydratesPeptidesAmino Acids, Peptides, and Proteins

Study Officials

  • Steven Feigenberg, MD

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR

Central Study Contacts

RadOnc Clinical Research Unit

CONTACT

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

May 23, 2018

First Posted

June 6, 2018

Study Start

March 5, 2019

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2028

Last Updated

January 14, 2026

Record last verified: 2026-01

Locations