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WithdrawnNCT06229392Updated Mar 11, 2026

A Study to Evaluate the Intratumoral Influenza Vaccine Administration in Patients With Breast Cancer

A Phase 1 interventional study of Fluzone Quadrivalent in Breast Cancer and Breast Cancer Triple Negative, sponsored by Rush University Medical Center. Withdrawn at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-03-11.

Sponsored by Rush University Medical Center · Phase 1, Interventional, and Treatment

Why this study was withdrawn
Internal operational issues prevented the study site from opening to enrollment.
Phase
Phase 1
Study type
Interventional
Enrollment
0
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

This Phase 1 study will assess the safety and efficacy (usefulness) of administering 2 doses of seasonal flu vaccine directly into breast cancer tissue (primary tumor), and will study the tumor and whole body response to the vaccine. If the tumor is palpable (able to fee by touch), the vaccine will be administered by a Surgeon/oncologist in the outpatient floor - both experienced and trained. If not palpable, the procedure will be done via guided Ultrasound by our Breast Radiologist -- both experienced and trained. Women with triple-negative (TNBC) and HER2+ types of breast cancer will be eligible for enrollment. Up to 18 subjects may be enrolled at Rush. Successive groups of 3 subjects per breast cancer type will be given increasing doses of vaccine. There are 3 potential dosing groups (half-dose, full dose, and high dose). Blood, stool (optional), and tumor tissue samples will be collected and tested. The active participation period is from one week prior to starting chemotherapy through three months post surgery.

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Conditions studied

  • Breast Cancer
  • Breast Cancer Triple Negative

Keywords

  • Breast cancer
  • Breast cancer triple negative
  • Breast cancer HER2+
  • Flu vaccine
  • Intratumoral flu vaccine
  • Intratumoral vaccine
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In context

Breast Neoplasms

12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.

Browse Breast Neoplasms studies →

Lead sponsor

Rush University Medical Center is the lead sponsor of 394 studies on the registry; 61 are open to participants now.

Of its 30 completed or terminated interventional studies of FDA-regulated products, 25 (83%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • ECOG 0-2
  • Patients must be planning to receive standard of car e neoadjuvant chemotherapy as defined by the most recent version of NCCN guidelines (www.nccn.org)
  • Patients must have histologically or cytologically confirmed invasive breast cancer that is either triple-negative or HER2+ (regardless of hormone receptor status)

Exclusion criteria

Exclusion Criteria:

  • Patients with any uncontrolled intercurrent illness.
  • Patients who have any underlying medical condition for which, in the investigator's opinion, participation would not be in the best interest of the participant
  • History of egg allergy
  • Patients currently on anticoagulant therapy, corticosteroids, or immunosuppressive agents
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to the seasonal flu vaccine.
  • History of Guillain-Barré syndrome
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Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Intratumoral influenza vaccine

    Biological: Fluzone Quadrivalent

Interventions

  • BiologicalFluzone Quadrivalent

    Successive cohorts of participants (3 participants per tumor type per cohort) will each be started on a fixed dose of the influenza vaccine. For the first cohort, patients will receive Fluzone Quadrivalent - (Sanofi Pasteur) - 60mcg/0.5mL (standard dose IT flu shot, or dose level 0) intratumorally on day -6 +/- 1 day and day 0 or 1. For the second cohort, patients will receive Fluzone High-Dose Quadrivalent - (Sanofi Pasteur) - 240mcg/0.7mL (high dose IT flu shot, or dose level 1) intratumorally on day -6 +/- 1 day and day 0 or 1. has context menu

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What researchers measure

Primary outcomes

  1. Dose- limiting toxicity (DLT)

    The primary objective of this trial is to assess the safety of intratumoral (IT) influenza vaccine administration in patients with breast cancer receiving neoadjuvant chemotherapy, by evaluating the percentage of patients experiencing dose- limiting toxicity (DLT).

    Time frame: 3 months post surgery

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Study locations

1 site
  • Rush University Medical Center
    Chicago, Illinois 60612, United States
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References and documents

Study documents

  • Informed consent form · Jul 6, 2023

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 11, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06229392
Lead sponsor
Rush University Medical Center
Responsible party
Ruta Rao (Study Principal Investigator, Rush University Medical Center) — Principal investigator
First posted
Jan 29, 2024
Start date
Jun 1, 2026 (estimated)
Primary completion
Jun 1, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Mar 11, 2026

Study contacts

Ruta Rao, MD
principal investigator · Rush University Medical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.

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