NCT06815835

Brief Summary

This study will be conducted among 1530 healthy infants of 9 to 12 months of age residing in the Dakshinkhan and Uttarkhan area which is located in Dhaka North City Corporation (DNCC) to enroll the required number of participants. Only infants who have not previously received the MR and YF vaccines will be enrolled. The findings of this study are likely to have a significant impact on vaccine co-administration strategies for campaign and routine immunization programs. The participants will be assigned to one of the three groups by the central computer-generated randomization schedule. The numbers are defined for each arm (Table 1) based on the sample size calculation. A list of infants who did not receive MR and Yellow fever vaccine will be prepared before enrollment by trained study staff (TSS). The TSSs will visit households in the defined study area and ask if the parents/guardians of infants aged 9-12 months are willing to participate in the study. If they show a willingness to participate, the TSSs will check their vaccination cards (if available) and prepare the list of potentially eligible infants who have not received MR and Yellow fever vaccines based on their vaccination card status. The investigators will collect blood specimens (4-5 ml) at the time of screening (visit-1), to evaluate serological markers of dengue and Japanese Encephalitis infection and for baseline (pre-vaccination) immunological assessment. The investigators will vaccinate seronegative, eligible participants within 24 hours of blood collection. There will be additional three follow-up visits after enrollment and will collect around 3-4 ml blood from each participant during visit 4 (week 6), and visit 5 (week 26) for immunological assessment. Diary cards will be used to collect adverse events (AEs) following immunization (AEFI) data for vaccinated participants (up to 14 days for solicited and 6 weeks for unsolicited AEs). Medically attended adverse events (MAAEs) and data on serious adverse events (SAEs) will be reported during the study. All study updates including AEs and SAEs will be reported to the data safety and monitoring board (DSMB) and sponsor.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,530

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Apr 2025

Shorter than P25 for phase_3

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 22, 2025

Completed
16 days until next milestone

First Posted

Study publicly available on registry

February 7, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

April 1, 2025

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2026

Completed
Last Updated

February 7, 2025

Status Verified

February 1, 2025

Enrollment Period

12 months

First QC Date

January 22, 2025

Last Update Submit

February 6, 2025

Conditions

Keywords

SafetyNon-interferenceMeasles and RubellaCo-administrationImmunogenicity

Outcome Measures

Primary Outcomes (1)

  • Seropositivity

    Equivalence for seropositivity rate for anti-measles, anti-rubella, and anti-YF IgG antibodies at 6 weeks post-vaccination

    06 weeks

Secondary Outcomes (2)

  • Immunogenicity

    06 months

  • Safety reporting

    06 months

Study Arms (3)

Test (MR+YF)

EXPERIMENTAL

Based on randomization (n= 510) potential participants will be vaccinated with MR+YF on Day 0. A diary card will be provided. A blood sample (4-5 ml) will be collected for immunological assay on Day -1, Week 6 ±3 days, and Week 26 ±7 days. All details will be recorded in the eCRF.

Biological: Measles-Rubella vaccine (Live) I.P. (Freeze Dried) of M/s. Zydus Lifesciences LtdBiological: Yellow fever Vaccine (WHO prequalified)

Reference 1 (MR)

EXPERIMENTAL

Based on randomization (n= 510) potential participants will be vaccinated with MR on Day 0. A diary card will be provided. A blood sample (4-5 ml) will be collected for immunological assay on Day -1, Week 6 ±3 days, and Week 26 ±7 days. All details will be recorded in the eCRF.

Biological: Measles-Rubella vaccine (Live) I.P. (Freeze Dried) of M/s. Zydus Lifesciences Ltd

Reference 2 (YF)

PLACEBO COMPARATOR

Based on randomization (n= 510) potential participants will be vaccinated with YF on Day 0. A diary card will be provided. A blood sample (4-5 ml) will be collected for immunological assay on Day -1, Week 6 ±3 days, and Week 26 ±7 days. All details will be recorded in the eCRF.

Biological: Yellow fever Vaccine (WHO prequalified)

Interventions

Live attenuated vaccine

Reference 1 (MR)Test (MR+YF)

Live attenuated vaccine

Reference 2 (YF)Test (MR+YF)

Eligibility Criteria

Age9 Months - 12 Months
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • The participant must satisfy all the following criteria to be eligible for enrolment:
  • Healthy infant participants of either gender aged\* 9 to 12 months at the time of enrollment
  • Participants should be in good health as determined by the medical history and physical examination based on the clinical judgment of the investigator
  • No previous history of vaccination against measles, rubella, or Yellow fever
  • Written informed consent from the participant's parent/guardian
  • Participant's parent/guardian literate enough to fill the diary card \*Age calculated as per completed month

You may not qualify if:

  • Participants positive for serological markers against Dengue and/or Japanese Encephalitis infections
  • History of hypersensitivity reaction to any component of the study vaccines including egg and chicken proteins
  • History of hypersensitivity reaction to neomycin
  • History of laboratory-confirmed or suspected measles, rubella, or Yellow fever in the past
  • Participant exposed# to measles, rubella, or Yellow fever virus within the past 30 days
  • Fever of any origin or infectious disorder of 3 days or more within the past month
  • Febrile illness (axillary temperature ≥37.5°C) at the time of enrollment
  • History of any vaccination within the past month
  • Clinically significant systemic disorders such as cardiovascular, respiratory, neurologic, gastrointestinal, hepatic, renal, endocrine, haematological, immunological, or metabolic disorder
  • Confirmed or suspected immunosuppressive or immunodeficiency disorder; or participants on any immunosuppressive or immunostimulant therapy
  • Known case of thrombocytopenia or any coagulation disorder, or participants on anticoagulation therapy
  • Participants administered blood, blood-containing products, or immunoglobulins within the last 3 months or planned administration during the study
  • Participant participated in another clinical study in the past 3 months
  • Any other reason for which the investigator feels that the participant should not participate #Close contact (family member or neighbour) with laboratory-confirmed or clinical diagnosis of measles/rubella/Yellow fever

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Icddr,B

Dhaka, Bangladesh

Location

Related Publications (14)

  • Cracknell Daniels B, Gaythorpe K, Imai N, Dorigatti I. Yellow fever in Asia-a risk analysis. J Travel Med. 2021 Apr 14;28(3):taab015. doi: 10.1093/jtm/taab015.

    PMID: 33506250BACKGROUND
  • Sacchetto L, Drumond BP, Han BA, Nogueira ML, Vasilakis N. Re-emergence of yellow fever in the neotropics - quo vadis? Emerg Top Life Sci. 2020 Dec 11;4(4):399-410. doi: 10.1042/ETLS20200187.

    PMID: 33258924BACKGROUND
  • Roukens AH, Visser LG. Yellow fever vaccine: past, present and future. Expert Opin Biol Ther. 2008 Nov;8(11):1787-95. doi: 10.1517/14712598.8.11.1787.

    PMID: 18847312BACKGROUND
  • Monath TP, Vasconcelos PF. Yellow fever. J Clin Virol. 2015 Mar;64:160-73. doi: 10.1016/j.jcv.2014.08.030. Epub 2014 Oct 24.

    PMID: 25453327BACKGROUND
  • Gaythorpe KA, Hamlet A, Jean K, Garkauskas Ramos D, Cibrelus L, Garske T, Ferguson N. The global burden of yellow fever. Elife. 2021 Mar 16;10:e64670. doi: 10.7554/eLife.64670.

    PMID: 33722340BACKGROUND
  • Monath TP. Yellow fever vaccine. Expert Rev Vaccines. 2005 Aug;4(4):553-74. doi: 10.1586/14760584.4.4.553.

    PMID: 16117712BACKGROUND
  • Asish PR, Dasgupta S, Rachel G, Bagepally BS, Girish Kumar CP. Global prevalence of asymptomatic dengue infections - a systematic review and meta-analysis. Int J Infect Dis. 2023 Sep;134:292-298. doi: 10.1016/j.ijid.2023.07.010. Epub 2023 Jul 16.

    PMID: 37463631BACKGROUND
  • Turtle L, Solomon T. Japanese encephalitis - the prospects for new treatments. Nat Rev Neurol. 2018 Apr 26;14(5):298-313. doi: 10.1038/nrneurol.2018.30.

    PMID: 29697099BACKGROUND
  • Endale A, Medhin G, Darfiro K, Kebede N, Legesse M. Magnitude of Antibody Cross-Reactivity in Medically Important Mosquito-Borne Flaviviruses: A Systematic Review. Infect Drug Resist. 2021 Oct 19;14:4291-4299. doi: 10.2147/IDR.S336351. eCollection 2021.

    PMID: 34703255BACKGROUND
  • Shi N, Rasuli A, Thollot Y. Safety of two doses of an inactivated hepatitis a vaccine given 6 months apart in healthy toddlers, children, and adolescents aged 12 months to 15 years in China: a phase IV study. Hum Vaccin Immunother. 2019;15(3):748-754. doi: 10.1080/21645515.2018.1539600. Epub 2018 Dec 5.

    PMID: 30403910BACKGROUND
  • Nolan T, McVernon J, Skeljo M, Richmond P, Wadia U, Lambert S, Nissen M, Marshall H, Booy R, Heron L, Hartel G, Lai M, Basser R, Gittleson C, Greenberg M. Immunogenicity of a monovalent 2009 influenza A(H1N1) vaccine in infants and children: a randomized trial. JAMA. 2010 Jan 6;303(1):37-46. doi: 10.1001/jama.2009.1911. Epub 2009 Dec 21.

    PMID: 20026597BACKGROUND
  • Brandriss MW, Schlesinger JJ, Walsh EE, Briselli M. Lethal 17D yellow fever encephalitis in mice. I. Passive protection by monoclonal antibodies to the envelope proteins of 17D yellow fever and dengue 2 viruses. J Gen Virol. 1986 Feb;67 ( Pt 2):229-34. doi: 10.1099/0022-1317-67-2-229.

    PMID: 3944585BACKGROUND
  • Monath TP. Yellow fever: an update. Lancet Infect Dis. 2001 Aug;1(1):11-20. doi: 10.1016/S1473-3099(01)00016-0.

    PMID: 11871403BACKGROUND
  • Measles vaccines: WHO position paper - April 2017. Wkly Epidemiol Rec. 2017 Apr 28;92(17):205-27. No abstract available. English, French.

    PMID: 28459148BACKGROUND

Related Links

MeSH Terms

Conditions

MeaslesRubellaYellow Fever

Interventions

Freeze DryingYellow Fever Vaccine

Condition Hierarchy (Ancestors)

Morbillivirus InfectionsParamyxoviridae InfectionsMononegavirales InfectionsRNA Virus InfectionsVirus DiseasesInfectionsRubivirus InfectionsTogaviridae InfectionsMosquito-Borne DiseasesVector Borne DiseasesArbovirus InfectionsFlavivirus InfectionsFlaviviridae InfectionsHemorrhagic Fevers, Viral

Intervention Hierarchy (Ancestors)

CryopreservationTissue PreservationHistocytological Preparation TechniquesCytological TechniquesClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisHistological TechniquesPreservation, BiologicalTherapeuticsInvestigative TechniquesViral VaccinesVaccinesBiological ProductsComplex Mixtures

Central Study Contacts

Dr. Firdausi Qadri, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Masking Details
This is a prospective, randomized, parallel, three-arm, open-label, equivalence clinical trial of co-administration of MR vaccines (manufactured by Zydus Lifesciences Limited) and Yellow fever vaccine (WHO prequalified). The vaccine administration team will be un-blinded to the treatment assignment list. The vaccine administrator team members will not be involved in the evaluation of vaccine safety and laboratory analysis. The DSMB will be responsible for un-blinding the randomization number codes in the event of severe putative vaccine reactions. Otherwise, the codes will not be revealed until the end of the trial and until the computerized dataset has been frozen. If the intervention assignment is un-blinded, all study collaborators will be notified immediately. If deemed necessary, the DSMBs will recommend unblinding to the IRB and contact the study statistician responsible for providing information on the vaccine received by the individual in question.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: This is a prospective, randomized, parallel, three-arm, open-label, equivalence clinical trial of co-administration of MR vaccines (manufactured by Zydus Lifesciences Limited) and Yellow fever vaccine (WHO prequalified) among healthy infants 9 to 12 months of age in Dhaka, Bangladesh who did not receive any of the aforementioned vaccines will be included in the study.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 22, 2025

First Posted

February 7, 2025

Study Start

April 1, 2025

Primary Completion

March 31, 2026

Study Completion

March 31, 2026

Last Updated

February 7, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations