Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT03743688 · ClinicalTrials.gov registry record
Kinetics of the Immune Response to Inactivated Influenza Vaccine in Healthy Adults
A clinical trial of Influenza and Influenza, Human, sponsored by Vanderbilt University Medical Center.
- Completed
- Registry status
- 10
- Enrollment target
- 1
- Study location
NCT03743688: Completed study of Influenza and Influenza, Human, sponsored by Vanderbilt University Medical Center.
NCT03743688 is a study of Influenza and Influenza, Human that has completed, run by Vanderbilt University Medical Center. The registered enrollment target is 10 participants, below the 36,804-participant average among 156 other Influenza trials with a reported enrollment target (100% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03743688, a study of Influenza and Influenza, Human, has completed, sponsored by Vanderbilt University Medical Center.
- COMPLETED
- Registry status
- 10 participants
- Enrollment target
- 1
- Study location
Study Summary
The purpose of this study is to evaluate the body's immune response at different time points to an FDA-approved seasonal influenza vaccine. By better understanding the way the immune system responds to the influenza vaccine, the investigators can design more effective vaccines against influenza.
Primary Outcome
Percentage of subjects achieving seroconversion (defined as either a pre-vaccination HAI titer \<1:10 and a post-vaccination HAI titer ≥1:40 or a pre- vaccination HAI titer ≥1:10 and a minimum four-fold rise in post-vaccination HAI antibody titer) 28 days after vaccination.
Conditions Studied
Interventions
- BIOLOGICAL Influenza Vaccine Recipients
Study Locations (1)
Tennessee
- Vanderbilt University Medical Center - Nashville
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 10 participants |
| Start Date | 2018-12-04 |
| Est. Completion | 2019-07-26 |
What the finished NCT03743688 record still lists
NCT03743688 is an observational study that tracks outcomes without assigning an intervention. The registry caps enrollment at 10 participants, a relatively small participant target, below the 36,804-participant average among 156 other Influenza trials with a reported enrollment target (100% lower).
The record links to 7 conditions, with Influenza appearing as the primary indexed condition, and to 1 intervention - of which Influenza Vaccine Recipients is the first listed.
NCT03743688 reports a single indexed study location in Tennessee.
Frequently Asked Questions
What is clinical trial NCT03743688 about?
NCT03743688 is a clinical study titled "Kinetics of the Immune Response to Inactivated Influenza Vaccine in Healthy Adults". The purpose of this study is to evaluate the body's immune response at different time points to an FDA-approved seasonal influenza vaccine. By better understanding the way the immune system responds to the influenza vaccine, the investigators can design more effective vaccines against influenza.
What is the current status of trial NCT03743688?
This trial is currently completed. The enrollment target is 10 participants. The study started on 2018-12-04. Estimated completion is 2019-07-26.
What conditions does trial NCT03743688 study?
This clinical trial studies the following conditions: Influenza, Influenza, Human, Influenza a, Vaccine Reaction, Influenza Type B.
What interventions are being tested in trial NCT03743688?
The interventions under investigation include: Influenza Vaccine Recipients (BIOLOGICAL).
Who is sponsoring clinical trial NCT03743688?
This trial is sponsored by Vanderbilt University Medical Center, which has 677 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT03743688 being conducted?
This trial has 1 study location across Tennessee. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Influenza
Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.
Where NCT03743688's enrollment target sits among peer trials
10 154th of 156 higher than 3 of 156 other Influenza trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Influenza 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
-
pH1N1 Blinded Challenge Study
RECRUITING · Phase 1
-
B Cell and Antibody Response to Seasonal Influenza Vaccines in Younger and Older Adults
RECRUITING · Phase 4
-
High vs. Standard Dose Influenza Vaccines in Lung Transplant (Repeater)
RECRUITING · Phase 2
-
Influenza Immunization in Adults Over Age 75
RECRUITING · NA
-
H5N1 Milk Detection Study
RECRUITING · NA
-
Screening for LID Clinical Studies Unit Healthy Volunteer Protocols
RECRUITING
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
- NCT00623389 · 10 participants · NA
Evaluation of an Advanced Lower Extremity Neuroprostheses
- NCT01241864 · 10 participants · Phase 2
Islet Transplantation in Type 1 Diabetic Kidney Allograft
- NCT01293214 · 10 participants · NA
Vascularized Composite Allotransplantation for Multiple Extremity Amputations
- NCT01474148 · 10 participants · NA
A Neuroprosthesis for Seated Posture and Balance
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