Safety and Immunogenicity of an Intranasal Vaccine for Respiratory Syncytial Virus in Seronegative Children 6-36 Months

NCT ID: NCT04909021

Last Updated: 2022-08-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE1

Total Enrollment

63 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-06-03

Study Completion Date

2023-10-31

Brief Summary

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This study evaluates an investigational vaccine that is designed to protect humans against infection with respiratory syncytial virus (RSV) and is administered as a nasal spray. Specifically, the study analyzes the safety of, and the immune response to, the vaccine when administered to healthy children between the ages of 6 and 24 months who are seronegative to RSV.

Detailed Description

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Conditions

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Respiratory Syncytial Virus (RSV)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

1st 5 subjects will be in Group 1 and randomized to investigational vaccine (IP) Dosage 1 or placebo. Safety Monitoring Committee (SMC) will review Group 1 data to Day 15 to allow dose escalation. Next 10 subjects will be in Group 2 and randomized to IP Dosage 2 or placebo. SMC will review Group 2 data to Day 15 to allow dose escalation. Next 12 enrolled subjects will be in Group 3 and randomized to IP Dosage 3 or placebo. SMC will review Group 3 data to Day 15 to allow dose escalation. Next 12 subjects will be in Group 4 and randomized to IP Dosage 4 or placebo. SMC will review Group 4 data to Day 15 to allow dose escalation. Next 12 subjects will be in Group 3a and randomized to IP Dosage 3 or placebo; if meet criteria will receive 2nd dose IP or placebo 28 days after 1st dose. Final 12 subjects will be in Group 4a and randomized to IP Dosage 4 or placebo; if meet criteria will receive 2nd dose IP or placebo 28 days after 1st dose.
Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants
The study is single-mask. Study participants and their parent(s)/guardian(s) will not know their child's study assignment; investigators, site staff, and site pharmacists will remain unmasked.

Study Groups

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Dosage Group 1: RSV Vaccine Dosage 1

Participants in this arm will receive a single intranasal dose of the investigational RSV vaccine at Dosage 1

Group Type EXPERIMENTAL

Investigational RSV vaccine MV-012-968 (Dosage 1)

Intervention Type BIOLOGICAL

Single dose administered intranasally on Day 1

Dosage Group 2: RSV Vaccine Dosage 2

Participants in this arm will receive a single intranasal dose of the investigational RSV vaccine at Dosage 2

Group Type EXPERIMENTAL

Investigational RSV vaccine MV-012-968 (Dosage 2)

Intervention Type BIOLOGICAL

Single dose administered intranasally on Day 1

Dosage Group 3: RSV Vaccine Dosage 3 (Single-dose)

Participants in this arm will receive a single intranasal dose of the investigational RSV vaccine at Dosage 3

Group Type EXPERIMENTAL

Investigational RSV vaccine MV-012-968 (Dosage 3; single-dose)

Intervention Type BIOLOGICAL

Single dose administered intranasally on Day 1

Dosage Group 3a: RSV Vaccine Dosage 3 (Two-dose)

Participants in this arm will receive a single intranasal dose of the investigational RSV vaccine at Dosage 3 followed by a second identical dose of the investigational RSV vaccine 28 days later

Group Type EXPERIMENTAL

Investigational RSV vaccine MV-012-968 (Dosage 3; two-dose)

Intervention Type BIOLOGICAL

Single dose administered intranasally on Day 1, followed by an identical dose administered intranasally at the Day 29 study visit

Placebo (Single-dose)

Participants in this arm will receive a single intranasal dose of placebo

Group Type PLACEBO_COMPARATOR

Placebo (single-dose)

Intervention Type OTHER

Single dose administered intranasally on Day 1

Placebo (Two-dose)

Participants in this arm will receive a single intranasal dose of placebo followed by a second identical dose of placebo 28 days later

Group Type PLACEBO_COMPARATOR

Placebo (two-dose)

Intervention Type OTHER

Single dose administered intranasally on Day 1, followed by an identical dose administered intranasally at the Day 29 study visit

Interventions

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Investigational RSV vaccine MV-012-968 (Dosage 1)

Single dose administered intranasally on Day 1

Intervention Type BIOLOGICAL

Investigational RSV vaccine MV-012-968 (Dosage 2)

Single dose administered intranasally on Day 1

Intervention Type BIOLOGICAL

Investigational RSV vaccine MV-012-968 (Dosage 3; single-dose)

Single dose administered intranasally on Day 1

Intervention Type BIOLOGICAL

Investigational RSV vaccine MV-012-968 (Dosage 3; two-dose)

Single dose administered intranasally on Day 1, followed by an identical dose administered intranasally at the Day 29 study visit

Intervention Type BIOLOGICAL

Placebo (single-dose)

Single dose administered intranasally on Day 1

Intervention Type OTHER

Placebo (two-dose)

Single dose administered intranasally on Day 1, followed by an identical dose administered intranasally at the Day 29 study visit

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Children aged 6-36 months
2. Good health based on history, physical examination, and medical record review, without evidence or suspicion of chronic disease
3. Seronegative to RSV, as defined by serum nAb titer below the threshold described in the study protocol and operations manual
4. Written informed consent provided by parent(s)/guardian(s)

Exclusion Criteria

1. Known or suspected chronic illness, particularly cardiopulmonary (including asthma or reactive airways disease), genetic or metabolic, hepatic, renal, infectious (including recurrent or chronic sinusitis), or immunodeficiency
2. Prior lab-confirmed RSV infection
3. Household or close contact (including but not limited to daycare) during the 21 days post-inoculation with anyone \< 6 months old or immunocompromised (applies to first study inoculation)
4. Nasal obstruction (including due to anatomic/structural causes, acute or chronic rhinosinusitis, or other causes)
5. Receipt of immunoglobulins, monoclonal antibodies and/or any blood products, or ribavirin within 6 months prior to study inoculation, or planned use during study period
6. Receipt of an investigational RSV vaccine at any time
7. Any other condition that, in the judgment of the investigator, would be a risk to subject's safety and/or may interfere with study procedures or interpretation of results
Minimum Eligible Age

6 Months

Maximum Eligible Age

36 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Meissa Vaccines, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jay Lieberman, MD

Role: STUDY_DIRECTOR

Meissa Vaccines, Inc.

Locations

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MedPharmics

Phoenix, Arizona, United States

Site Status RECRUITING

Paradigm Clinical Research

La Mesa, California, United States

Site Status NOT_YET_RECRUITING

The Emory Children's Center

Atlanta, Georgia, United States

Site Status RECRUITING

Clinical Research Prime

Idaho Falls, Idaho, United States

Site Status NOT_YET_RECRUITING

MedPharmics

Metairie, Louisiana, United States

Site Status RECRUITING

Meridian Clinical Research

Hastings, Nebraska, United States

Site Status NOT_YET_RECRUITING

Meridian Clinical Research

Omaha, Nebraska, United States

Site Status RECRUITING

Meridian Clinical Research

Binghamton, New York, United States

Site Status RECRUITING

Aventiv Research

Columbus, Ohio, United States

Site Status NOT_YET_RECRUITING

Coastal Pediatric Research

Summerville, South Carolina, United States

Site Status NOT_YET_RECRUITING

PanAmerican Clinical Research

Brownsville, Texas, United States

Site Status NOT_YET_RECRUITING

Benchmark Research

San Antonio, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Jay Lieberman, MD

Role: CONTACT

3107538943

Facility Contacts

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Jason Wallace

Role: primary

602-368-1928

Jamie Howlett

Role: primary

858-274-4226

Andrea VanDucen

Role: backup

858-274-4226

Lisa Macoy

Role: primary

404-727-8440

Mireya Martinez

Role: primary

208-497-0600 ext. 124

Karley Morgan

Role: backup

208-497-0600

Katelyn Jackson

Role: primary

504-304-7197

Miranda D Stahr

Role: primary

402-407-2800

Kristine Johnson

Role: backup

402-407-2800

Amy Nichols

Role: primary

402-933-6500

Kathe Olmstead

Role: primary

607-771-1064 ext. 41348

Cheyanne Wilson

Role: primary

614-501-6164 ext. 2022

Logan Aldrich

Role: backup

614-501-6164 ext. 3009

Mathew Thomas

Role: primary

843-518-5646

Emily McCoy

Role: backup

843-737-9471

Luis E Magana

Role: primary

956-443-0016

Patricia Garza

Role: backup

956-443-0016

Jaudohn Hicks

Role: primary

210-697-3600 ext. 6

April Valdvieso

Role: backup

210-697-3600 ext. 6

References

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Stobart CC, Rostad CA, Ke Z, Dillard RS, Hampton CM, Strauss JD, Yi H, Hotard AL, Meng J, Pickles RJ, Sakamoto K, Lee S, Currier MG, Moin SM, Graham BS, Boukhvalova MS, Gilbert BE, Blanco JC, Piedra PA, Wright ER, Moore ML. A live RSV vaccine with engineered thermostability is immunogenic in cotton rats despite high attenuation. Nat Commun. 2016 Dec 21;7:13916. doi: 10.1038/ncomms13916.

Reference Type BACKGROUND
PMID: 28000669 (View on PubMed)

Other Identifiers

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MV-006

Identifier Type: -

Identifier Source: org_study_id

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