A Phase I/II, Double-blind, Randomized, Active-controlled, Age De-escalation Trial to Assess Safety and Immunogenicity of a Measles Rubella Vaccine (MRV) Microneedle Patch (MRV-MNP) in Adults, MRV-primed Toddlers, and MRV-naïve Infants
Overview
- Phase
- Phase 1
- Intervention
- Not specified
- Conditions
- Measles
- Sponsor
- Micron Biomedical, Inc
- Enrollment
- 281
- Locations
- 1
- Primary Endpoint
- Incidence of treatment-emergent solicited adverse events as assessed by the DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (V2.1 Jul 2017)
- Status
- Completed
- Last Updated
- 3 years ago
Overview
Brief Summary
This is a phase 1/2, single-centre, double-blind, double-dummy, randomized, active-controlled, age de-escalation trial. Age de-escalation will be based on a review of the safety data from the preceding cohort (adults for toddlers and toddlers for infants) up to day 14 post study product administration by a data monitoring committee (DMC). All participants will receive either the MRV-MNP and a placebo (0.9% sodium chloride) SC injection (PLA-SC) or a placebo-MNP (PLA-MNP) and MRV by the SC route (MRV-SC). Only those study staff randomizing participants and preparing the study products for administration will be aware of the products administered. Those administering the study products, all other trial staff and the participants and parents will be blinded to treatment group. 45 adults (18 to 40-years-of-age) will be randomized in a 2:1 ratio. Thus, 30 adults will receive MRV-MNP and PLA-SC while 15 adults will receive MRV-SC and PLA-MNP. 120 toddlers (15 to 18 months-of-age) will be randomized in a 1:1 ratio. Thus, 60 toddlers will receive MRV-MNP and PLA-SC while the same number of toddlers will receive MRV-SC and PLA-MNP. 120 infants (9 to 10 months) will also be randomized in a 1:1 ratio. Thus, 60 infants will receive MRV-MNP and PLA-SC while the same number of infants will receive MRV-SC and PLA-MNP. Solicited local and systemic AE will be collected daily from all participants from the day of study product administration to day 13 post study product administration. Unsolicited AE and SAE will be collected from the day of study product administration to day 180 post study product administration. All participants will have laboratory investigations (hepatitis B, hepatitis C, hematology and biochemistry) conducted as part of screening. Adults will have safety laboratory investigations repeated on day seven and day 14 post study product administration. Toddlers and infants will have safety laboratory investigations repeated on day seven post study product administration. All participants will have measles- and rubella-specific SNA titers and measles- and rubella-specific IgG concentrations measured at baseline and day 42 and 180 post study product administration. Other Expanded Program on Immunization (EPI) vaccines due in toddler (oral poliovirus vaccine, diphtheria-tetanus-pertussis) and in infants (oral poliovirus vaccine, yellow fever vaccine and MenAfriVac® [due at 12 months]) will be given by the investigator team at the day 42 study visit (V4).
Investigators
Eligibility Criteria
Inclusion Criteria
- •Adults: Be between 18 and 40 years inclusive on the day of consent.
- •Toddlers: Be between 15 and 18 months of age inclusive on the day of consent.
- •Infants: Be between 9 and 10 months of age inclusive on the day of consent.
- •Be judged to be able to comprehend and comply with study requirement and procedures and must be willing and able to return for all scheduled follow-up visits (adult cohort).
- •Have a parent who is judged to be able to comprehend and comply with study requirement and procedures and is willing and able to return for all scheduled follow-up visits (toddler and infant cohort).
- •Be willing to avoid consumption (ingestion and topical application) of herbal or other local traditional medications throughout the course of the study.
- •Have a readily identifiable place of residence within a reasonable travelling distance of the clinical trial site.
- •Have a consistent means of telephone contact for the duration of trial participation
- •Have a site on one wrist that is judged to be suitable for MNP administration.
- •Adult female cohort only: have a negative serum pregnancy test at screening (V0) and negative urine pregnancy test on the day of vaccination (V1).
Exclusion Criteria
- •Have used any investigational product within the 90 days prior to study product administration or plan to use any investigational products during the period of study participation.
- •Have consumed (by ingestion or topical application) any herbal or other traditional medication within 14 days of study product administration
- •Have a history of serious reactions to any prior vaccination or known hypersensitivity to any component of the MRV-MNP, MRV-SC or PLA-MNP including polyethylene foam with acrylic adhesive, silicone-coated Kraft paper, stainless steel, and severe allergic reactions to cow's milk.
- •Have a history of anaphylactic shock or other life-threatening allergic reactions
- •Have any chronic, clinically significant pulmonary, cardiovascular, hepatobiliary, gastrointestinal, renal, neurological, or haematological abnormality or illness that requires medical therapy.
- •Have a history of administration of any non-study vaccines within the 56 days before the administration of study products or planned vaccination during study participation, except for non-measles and rubella catch-up/national campaign administered through the Gambian Ministry of Health.
- •Have a history of chronic administration (defined as more than 14 consecutive days) of immunosuppressant (\> 0.5mg/kg/day of prednisolone or equivalent) or other immune modifying drugs within the 12 months prior to the administration of the study vaccine including the use of glucocorticoids. The use of inhaled/per nasal glucocorticoids will be permitted. The use of topical glucocorticoids within 12 months is not permitted.
- •Have a history of the administration of immunoglobulins and/or any blood products within the 12 months prior to administration of the study vaccine or anticipation of such administration during the study period.
- •Have a history of known disturbance of coagulation or blood disorder that could cause anaemia or excess bleeding (e.g. sickle cell disorders, thalassemia, and coagulation factor deficiencies).
- •Have a history of keloid formation.
Outcomes
Primary Outcomes
Incidence of treatment-emergent solicited adverse events as assessed by the DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (V2.1 Jul 2017)
Time Frame: 14 days
The number, severity and relatedness of solicited local and systemic adverse events collected on the day of study product administration and daily until day 14 following study product administration.
Incidence of pan-study unsolicited adverse events, as assessed by the DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events.
Time Frame: 180 days
The number, severity and relatedness of unsolicited adverse events and serious adverse events from the day of study product administration until day 180 following study product administration.
Incidence of treatment-emergent biochemical and hematological abnormalities as assessed by regional laboratory normal values for a given test
Time Frame: up to 14 days
The number, severity and relatedness of biochemical and hematological abnormalities occurring until day 14 (Adult cohort only), or day 7 (toddler and infant cohorts) following study product administration.
Secondary Outcomes
- Percentage of measles seroprotected participants(Days 42 and 180 post vaccination)
- Percentage of rubella seroprotected participants(Days 42 and 180 post vaccination)