Safety Study of a Vaccine to Help Protect Against Lyme Disease in Healthy Children
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT05634811 |
Recruitment Status :
Active, not recruiting
First Posted : December 2, 2022
Last Update Posted : March 5, 2024
|
- Study Details
- Tabular View
- No Results Posted
- Disclaimer
- How to Read a Study Record
This study is to understand if the study vaccine (called VLA15) is safe in healthy children.
We are looking for children who:
- are healthy
- are age 5 through 17
- have not been diagnosed with any form of Lyme disease in the past
- have not received any vaccines for Lyme disease in the past
Lyme disease happens most often in children of this age. The study vaccine may be used potentially to help prevent Lyme disease. The goal of this study is to get more information about the safety of the study vaccine in this age group.
Participants will be in this study for about 2 years. During that time, they will receive VLA15 or placebo (sterile saltwater solution) by a "shot" in the arm. We will compare experience of children receiving VLA15 to those receiving the placebo. Participants will not know whether they get VLA15 or placebo.
Everyone participating in this study will:
- get the shots in a clinic or in a hospital office
- receive a total of 4 shots
- receive the first 3 shots within 6 months
- receive the last shot about 1 year afterwards
- need to come to the trial site for 6 planned visits; 4 of these are vaccination visits and 2 are follow-up visits. We will contact you by phone 1 time every year during the study to monitor your experience. You may have extra visits if you experience a severe reaction after a vaccine dose.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Lyme Disease | Biological: VLA15 Other: Normal Saline | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 3242 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Other |
Official Title: | A PHASE 3, RANDOMIZED, PLACEBO-CONTROLLED, OBSERVER-BLINDED TRIAL TO EVALUATE THE SAFETY OF A 6-VALENT OspA-BASED LYME DISEASE VACCINE (VLA15) IN HEALTHY CHILDREN 5 THROUGH 17 YEARS OF AGE |
Actual Study Start Date : | December 12, 2022 |
Estimated Primary Completion Date : | June 6, 2025 |
Estimated Study Completion Date : | June 6, 2025 |
Arm | Intervention/treatment |
---|---|
Experimental: VLA15
Participants will receive 6-valent OspA-based Lyme disease vaccine (VLA15).
|
Biological: VLA15
6-valent OspA-based Lyme disease vaccine
Other Name: PF-07307405 |
Placebo Comparator: Normal Saline (Placebo)
Participants will receive 0.9% sodium chloride solution for injection
|
Other: Normal Saline
0.9% sodium chloride solution for injection |
- The percentage of participants reporting prompted local reactions [ Time Frame: Within 7 days following each study intervention administration ]
- The percentage of participants reporting prompted systemic events [ Time Frame: Within 7 days following each study intervention administration ]
- The percentage of participants reporting adverse events (AEs) [ Time Frame: Through 1 month following each study intervention administration ]
- The percentage of participants reporting newly diagnosed chronic medical conditions (NDCMCs) [ Time Frame: Through study completion, up to 24 months ]
- The percentage of participants reporting serious adverse events (SAEs) [ Time Frame: Through study completion, up to 24 months ]
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 5 Years to 17 Years (Child) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Healthy participants at enrollment who are determined to be eligible for inclusion in the study. Participants with preexisting chronic medical conditions determined to be stable may be included.
- Participants and/or participants' parent(s)/guardian who are willing and able to comply with all scheduled visits, study procedures and lifestyle considerations for the duration of the study.
Exclusion Criteria:
- Female participants that are pregnant, breastfeeding, or have a positive urine pregnancy test at Visit 1. Sexually active females and fertile males unwilling to use contraception as per protocol.
- Any contraindication to vaccination or vaccine components, including previous anaphylactic reaction to any vaccine or vaccine-related components.
- Any diagnosis of Lyme disease within the past 3 months.
- Any history of Lyme arthritis, carditis, neuroborreliosis, or other disseminated Lyme Disease (LD), regardless of when diagnosed.
- Known tick bite within the past 4 weeks.
- Congenital or acquired immunodeficiency or other conditions or treatments associated with immunosuppression that would inhibit the ability to mount an immune response to a vaccine.
- Other medical, psychiatric condition, active suicidal ideation/behavior or lab abnormality which increases risk of study participation or, in investigator's judgment is inappropriate for the study.
- Receipt of a previous vaccination for LD.
- Treatment for LD in the 3 months prior to study intervention administration.
- Receipt of blood/plasma products or immunoglobulins within 6 months before study intervention administration through conclusion of the study.
- Receipt of systemic corticosteroids for ≥14 days within 28 days before study intervention administration. Inhaled/nebulized, intra-articular, intrabursal, or topical corticosteroids are permitted.
- Receipt of chronic systemic treatment with other known immunosuppressant medications, or radiotherapy, within 6 months before study intervention administration.
- Current use of any prohibited concomitant medication(s) or participants unwilling/unable to use a permitted concomitant medication(s).
- Participation in other studies involving investigational drugs/vaccines/devices within 28 days prior to study entry and/or during study participation (observational studies are acceptable).
- Investigator site staff, sponsor/sponsor delegates directly involved in the conduct of the study and their family members; site staff supervised by the investigator and their family members.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05634811
Study Director: | Pfizer CT.gov Call Center | Pfizer |
Responsible Party: | Pfizer |
ClinicalTrials.gov Identifier: | NCT05634811 |
Other Study ID Numbers: |
C4601012 |
First Posted: | December 2, 2022 Key Record Dates |
Last Update Posted: | March 5, 2024 |
Last Verified: | March 2024 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests. |
URL: | https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Borreliosis Borrelia burgdorferi Spirochetes Vector-Borne Disease |
Lyme Disease Vaccine VLA15 Outer Surface Protein A (OspA) Ticks |
Lyme Disease Gram-Negative Bacterial Infections Bacterial Infections Bacterial Infections and Mycoses Infections |
Borrelia Infections Spirochaetales Infections Tick-Borne Diseases Vector Borne Diseases |