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

NCT04502693 · ClinicalTrials.gov registry record · Phase 3

Effectiveness of GlaxoSmithKline Biologicals S.A's Meningococcal Group B and Combined ABCWY Vaccines in Healthy Adolescents and Young Adults

A Phase 3 study, sponsored by GlaxoSmithKline.

Completed
Registry status
Phase 3
Development phase
3,657
Enrollment target

NCT04502693: Completed Phase 3 study, sponsored by GlaxoSmithKline.

NCT04502693 is a Phase 3 study that has completed, run by GlaxoSmithKline. The registered enrollment target is 3,657 participants, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (374% higher). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT04502693, a Phase 3 study, has completed, sponsored by GlaxoSmithKline.

COMPLETED
Registry status
Phase 3
Development phase
3,657 participants
Enrollment target

Study Summary

The purpose of this study was to evaluate the effectiveness of 2 doses or 3 doses of GSK's licenced meningococcal group B Bexsero (rMenB+OMV NZ) vaccine and of 2 doses of GSK's investigational combined meningococcal (MenABCWY) vaccine (GSK3536819A) in healthy adolescents and young adults. The immunogenicity and safety were evaluated in the study.

Primary Outcome

The effectiveness (test-based) of rMenB+OMV vaccine at 1 month after the 3 doses in MenB\_0\_2\_6 group and 1 month after the 2 dose schedule in MenB\_0\_6 group when compared to one dose of MenACWY vaccination in ACWY group, against a panel of N. meningitidis serogroup B strains was measured in terms of percentage of samples without bactericidal activity using endogenous complement human Serum Bactericidal Assay (enc-hSBA), which provides a qualitative assessment (yes/no) of the presence of suf

Interventions

  • COMBINATION_PRODUCT Placebo
  • COMBINATION_PRODUCT rMenB+OMV NZ vaccine
  • BIOLOGICAL Meningococcal Groups A, C, W and Y Conjugate Vaccine (MenACWY)
  • COMBINATION_PRODUCT MenABCWY-1
  • COMBINATION_PRODUCT MenABCWY-2

Trial Details

FieldValue
Enrollment Target 3,657 participants
Start Date 2020-08-14
Est. Completion 2022-09-13
Phase Phase 3
GlaxoSmithKline

1,345 total trials

What the finished NCT04502693 record still lists

NCT04502693 is an interventional study that assigns participants to a tested intervention. Its 3,657 participants enrollment target places it among the larger protocols in the corpus, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (374% higher).

The record links to 0 conditions, and to 5 interventions - of which Placebo is the first listed.

NCT04502693 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04502693 about?

NCT04502693 is a clinical study titled "Effectiveness of GlaxoSmithKline Biologicals S.A's Meningococcal Group B and Combined ABCWY Vaccines in Healthy Adolescents and Young Adults". The purpose of this study was to evaluate the effectiveness of 2 doses or 3 doses of GSK's licenced meningococcal group B Bexsero (rMenB+OMV NZ) vaccine and of 2 doses of GSK's investigational combined meningococcal (MenABCWY) vaccine (GSK3536819A) in healthy adolescents and young adults. The immuno...

What is the current status of trial NCT04502693?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 3,657 participants. The study started on 2020-08-14. Estimated completion is 2022-09-13.

What interventions are being tested in trial NCT04502693?

The interventions under investigation include: Placebo (COMBINATION_PRODUCT), rMenB+OMV NZ vaccine (COMBINATION_PRODUCT), Meningococcal Groups A, C, W and Y Conjugate Vaccine (MenACWY) (BIOLOGICAL), MenABCWY-1 (COMBINATION_PRODUCT), MenABCWY-2 (COMBINATION_PRODUCT).

Who is sponsoring clinical trial NCT04502693?

This trial is sponsored by GlaxoSmithKline, which has 1,345 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04502693's enrollment target sits among peer trials

3,657 67th of 2000 higher than 1,934 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

  • NCT06702553 · 3,650 participants · Phase 3

    Nitric Oxide for Reduced Intensive Support in Cardiac Surgery With Cardiopulmonary Bypass

  • NCT07249398 · 3,650 participants · NA

    Influence of Social Media Ads on Food Choice - Master Protocol

  • NCT06058377 · 3,680 participants · Phase 3

    Adding an Immunotherapy Drug, MEDI4736 (Durvalumab), to the Usual Chemotherapy Treatment (Paclitaxel, Cyclophosphamide, and Doxorubicin) for Stage II-III Breast Cancer

  • NCT06784960 · 3,689 participants · NA

    Communication Strategies to Increase HPV Vaccination Intention

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 NCT04502693, the US trial registry maintained by the National Library of Medicine. NCT04502693 (large enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.