Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT06134804 · ClinicalTrials.gov registry record · Phase 3

A Study of 9-valent Extraintestinal Pathogenic Escherichia Coli Vaccine (ExPEC9V) and High-dose Quadrivalent Influenza Vaccine, With and Without Co-administration, in Adults Aged 65 Years or Older

A Phase 3 study, sponsored by Janssen Research & Development.

Completed
Registry status
Phase 3
Development phase
959
Enrollment target

NCT06134804: Completed Phase 3 study, sponsored by Janssen Research & Development.

NCT06134804 is a Phase 3 study that has completed, run by Janssen Research & Development. The registered enrollment target is 959 participants, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (24% higher). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT06134804, a Phase 3 study, has completed, sponsored by Janssen Research & Development.

COMPLETED
Registry status
Phase 3
Development phase
959 participants
Enrollment target

Study Summary

The purpose of this study is to show that high-dose quadrivalent seasonal influenza vaccine (HD QIV) given together with 9-valent extraintestinal pathogenic Escherichia coli vaccine (ExPEC9V) does not induce lower antibody response against each of the 4 influenza vaccine strains, as compared to HD QIV given alone and further show that ExPEC9V given together with HD QIV does not induce lower antibody response against each of the vaccine O-serotype antigens, as compared to ExPEC9V given alone.

Primary Outcome

HI antibody titers against H1N1, H3N2, B/Victoria, and B/Yamagata Influenza vaccine strains 29 days after the administration of HD quadrivalent seasonal influenza vaccine as measured by HI assay were reported.

Interventions

  • BIOLOGICAL Placebo
  • BIOLOGICAL ExPEC9V
  • BIOLOGICAL HD quadrivalent influenza vaccine

Trial Details

FieldValue
Enrollment Target 959 participants
Start Date 2023-10-24
Est. Completion 2024-07-26
Phase Phase 3
Janssen Research & Development

593 total trials

What the finished NCT06134804 record still lists

NCT06134804 is an interventional study that assigns participants to a tested intervention. The registered 959 participants enrollment target is mid-sized for trials with a published cap, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (24% higher).

The record links to 0 conditions, and to 3 interventions - of which Placebo is the first listed.

NCT06134804 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT06134804 about?

NCT06134804 is a clinical study titled "A Study of 9-valent Extraintestinal Pathogenic Escherichia Coli Vaccine (ExPEC9V) and High-dose Quadrivalent Influenza Vaccine, With and Without Co-administration, in Adults Aged 65 Years or Older". The purpose of this study is to show that high-dose quadrivalent seasonal influenza vaccine (HD QIV) given together with 9-valent extraintestinal pathogenic Escherichia coli vaccine (ExPEC9V) does not induce lower antibody response against each of the 4 influenza vaccine strains, as compared to HD Q...

What is the current status of trial NCT06134804?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 959 participants. The study started on 2023-10-24. Estimated completion is 2024-07-26.

What interventions are being tested in trial NCT06134804?

The interventions under investigation include: Placebo (BIOLOGICAL), ExPEC9V (BIOLOGICAL), HD quadrivalent influenza vaccine (BIOLOGICAL).

Who is sponsoring clinical trial NCT06134804?

This trial is sponsored by Janssen Research & Development, which has 593 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT06134804's enrollment target sits among peer trials

959 332nd of 2000 higher than 1,669 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT04726241 · 960 participants · Phase 1

    The Pediatric Acute Leukemia (PedAL) Screening Trial - A Study to Test Bone Marrow and Blood in Children With Leukemia That Has Come Back After Treatment or Is Difficult to Treat - A Leukemia & Lymphoma Society and Children's Oncology Group Study

  • NCT05142384 · 960 participants · NA

    ICBT (Internet Based Cognitive Behavioral Therapy) for Maternal Depression: Community Implementation in Head Start

  • NCT05178498 · 960 participants

    Impact of Dietary Inflammatory Potential on Breast Cancer Risk

  • NCT05946629 · 960 participants · NA

    SELUTION 4 De Novo Small Vessel IDE Trial

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT06134804, the US trial registry maintained by the National Library of Medicine. NCT06134804 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.