Safety and Immunogenicity of the Live Attenuated Tetravalent Butantan-Dengue Vaccine in Autoimmune Rheumatic Diseases
BTNDV-ARD
1 other identifier
interventional
477
1 country
2
Brief Summary
The goal of this clinical trial is to evaluate whether the live attenuated tetravalent Butantan-Dengue vaccine (Butantan-DV) is safe and capable of inducing an immune response in patients aged 12 to 59 years with autoimmune rheumatic diseases (ARDs) who are clinically stable and under low-grade or no immunosuppression, as well as in healthy volunteers matched by sex and age. The main questions it aims to answer are: Does the vaccine induce adequate seroconversion in patients with ARDs compared to healthy controls? What is the frequency and intensity of common adverse events after vaccination in ARDs patients? Does physical activity levels and nutritional status influence vaccine-induced immune response in patients with ARDs? Researchers will compare patients with ARDs to healthy controls to evaluate if the vaccine elicits similar immune responses and safety profiles. All participants will:
- receive a single 0.5 mL dose of the Butantan-DV vaccine via subcutaneous injection;
- undergo blood sample collection before and after vaccination (baseline, Day 42, and Day 400) to assess antibody and cellular responses;
- attend follow-up visits on Days 7, 14, and 42 for safety monitoring and laboratory tests;
- report any symptoms or adverse events using a standardized diary for 42 days;
- be followed for up to one year for long-term safety and immunogenicity assessments.
- wear a device for 14 consecutive days to assess current and habitual physical activity levels.
- answer three non-consecutive 24-hour dietary recalls, including at least one weekend day to assess nutritional status.
- collect blood samples one-year after vaccination to access immunogenicity and cellular response. Researcher will also perform subgroups analysis in: A viremia subgroup (50 patients and 50 healthy controls) will provide additional samples on Days 1, 7, 14, 28, 42, and-if viremia is detected-Day 68, to evaluate post-vaccination viremia and its duration. An immunogenicity subgroup (\~20% of participants, n=96) will undergo cellular immune response testing via flow cytometry to evaluate T-cell responses.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Mar 2026
Typical duration for phase_4
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 30, 2025
CompletedFirst Posted
Study publicly available on registry
July 28, 2025
CompletedStudy Start
First participant enrolled
March 16, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 30, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 30, 2028
April 15, 2026
April 1, 2026
1.8 years
June 30, 2025
April 14, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Seroconversion Rate After Vaccination
Proportion of participants who achieve seroconversion (defined by PRNT50 neutralizing antibody titers) for any dengue serotype at Day 42 following a single dose of the Butantan-DV vaccine. Comparisons will be made between patients with autoimmune rheumatic diseases (ARDs) and healthy controls.
From enrollment to day 42 after vaccination
Frequency and Intensity of Common Adverse Events
Frequency and intensity of solicited local and systemic adverse events (e.g., pain at injection site, fever, headache, fatigue) with frequency up to 1/100, up to Day 42 post-vaccination, classified according to severity grading. Comparisons will be made between ARD patients and healthy controls.
Baseline through Day 42.
Secondary Outcomes (11)
Disease Activity Flares After Vaccination
Day 1 to Day 42
Frequency of Serious Adverse Events (SAEs)
Day 1 through Day 400
Frequency of Adverse Events of Special Interest (AESIs)
Day 1 through Day 400
Intensity of Viremia Post-Vaccination
Days 1, 7, 14, 28, 42, and 68 (if viremia is detected)
Duration of Viremia Post-Vaccination
Days 1, 7, 14, 28, 42, and 68 (if viremia is detected)
- +6 more secondary outcomes
Study Arms (2)
ARDs
EXPERIMENTALPatients with ARDs will receive 0.5 mL subcutaneous dose of Butantan-DV
Control
ACTIVE COMPARATORHealthy subjects will receive 0.5 mL subcutaneous dose of Butantan-DV
Interventions
A single 0.5 mL dose of the live attenuated tetravalent dengue vaccine (Butantan-DV), administered subcutaneously on Day 1. The vaccine contains attenuated viral strains for DENV-1, DENV-3, DENV-4, and a chimeric DENV-2 component. It is manufactured and formulated by the Instituto Butantan (São Paulo, Brazil).
Eligibility Criteria
You may qualify if:
- Age between 12 and 59 years
- Male or female
- Clinical diagnosis of an autoimmune rheumatic disease (ARD) based on internationally accepted criteria (e.g., rheumatoid arthritis, systemic lupus erythematosus, juvenile idiopathic arthritis, Sjögren's syndrome, vasculitis)
- Healthy control matched by age and sex
- ARD patients with clinically stable disease for at least 3 months
- ARD patients under low-grade immunosuppression or no immunosuppression
- Acceptable immunosuppressive treatments include:
- Hydroxychloroquine Sulfasalazine Prednisone ≤ 20 mg/day Methotrexate ≤ 0.4 mg/kg/week (maximum 20 mg/week) Leflunomide 20 mg/day Azathioprine \< 3 mg/kg/day Combination therapy with low-dose prednisone (≤ 7.5 mg/day), hydroxychloroquine, or sulfasalazine
- Healthy controls with no history of autoimmune or chronic infectious diseases
- Healthy controls not taking immunosuppressive medications Willing and able to comply with study procedures and follow-up
- Female participants of reproductive potential with negative pregnancy test at baseline
- Female participants of reproductive potential agreeing to use effective contraception for at least 90 days after vaccination
You may not qualify if:
- Prior receipt of any dengue vaccine
- Receipt of a live attenuated vaccine within 4 weeks prior to enrollment
- Receipt of an inactivated vaccine within 2 weeks prior to enrollment
- Known allergy to any component of the vaccine
- Febrile illness (≥ 37.8°C) within 72 hours prior to vaccination
- History of immunodeficiency syndromes
- History of asplenia
- History of cancer
- History of HIV infection
- History of primary immunodeficiencies
- Immunosuppression due to organ transplant
- Chronic uncontrolled comorbidities (e.g., heart failure, renal failure, hepatic insufficiency, diabetes mellitus)
- Hospitalization or acute illness at screening
- Receipt of blood transfusion within 3 months prior to enrollment
- Current pregnancy or breastfeeding
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Sao Paulo General Hospitallead
- Butantan Institutecollaborator
Study Sites (2)
Hospital das Clínicas da Faculdade de Medicina da USP
São Paulo, São Paulo, 01246-903, Brazil
Rheumatology Division, Faculdade de Medicina da USP
São Paulo, São Paulo, Brazil
Related Publications (4)
Thomas SJ, Yoon IK. A review of Dengvaxia(R): development to deployment. Hum Vaccin Immunother. 2019;15(10):2295-2314. doi: 10.1080/21645515.2019.1658503. Epub 2019 Oct 7.
PMID: 31589551BACKGROUNDFernandez-Martinez S, Cortes X, Borras-Blasco J, Gracia-Perez A, Castera ME. Effectiveness of a systematic vaccination program in patients with autoimmune inflammatory disease treated with anti-TNF alpha drugs. Expert Opin Biol Ther. 2016 Nov;16(11):1317-1322. doi: 10.1080/14712598.2016.1218844. Epub 2016 Aug 18.
PMID: 27537179BACKGROUNDBiswal S, Reynales H, Saez-Llorens X, Lopez P, Borja-Tabora C, Kosalaraksa P, Sirivichayakul C, Watanaveeradej V, Rivera L, Espinoza F, Fernando L, Dietze R, Luz K, Venancio da Cunha R, Jimeno J, Lopez-Medina E, Borkowski A, Brose M, Rauscher M, LeFevre I, Bizjajeva S, Bravo L, Wallace D; TIDES Study Group. Efficacy of a Tetravalent Dengue Vaccine in Healthy Children and Adolescents. N Engl J Med. 2019 Nov 21;381(21):2009-2019. doi: 10.1056/NEJMoa1903869. Epub 2019 Nov 6.
PMID: 31693803BACKGROUNDKallas EG, Cintra MAT, Moreira JA, Patino EG, Braga PE, Tenorio JCV, Infante V, Palacios R, de Lacerda MVG, Batista Pereira D, da Fonseca AJ, Gurgel RQ, Coelho IC, Fontes CJF, Marques ETA, Romero GAS, Teixeira MM, Siqueira AM, Barral AMP, Boaventura VS, Ramos F, Elias Junior E, Cassio de Moraes J, Covas DT, Kalil J, Precioso AR, Whitehead SS, Esteves-Jaramillo A, Shekar T, Lee JJ, Macey J, Kelner SG, Coller BG, Boulos FC, Nogueira ML. Live, Attenuated, Tetravalent Butantan-Dengue Vaccine in Children and Adults. N Engl J Med. 2024 Feb 1;390(5):397-408. doi: 10.1056/NEJMoa2301790.
PMID: 38294972BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 30, 2025
First Posted
July 28, 2025
Study Start
March 16, 2026
Primary Completion (Estimated)
December 30, 2027
Study Completion (Estimated)
December 30, 2028
Last Updated
April 15, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share