Prevention of Acute Respiratory Infection in Taiwanese Institutionalized Elderly
30. června 2022 aktualizováno: Megan Murray, MD, ScD, Harvard Medical School (HMS and HSDM)
Prevention of Acute Respiratory Infection in Taiwanese Institutionalized Elderly (PARITIE)
The purpose of this study is to assess the efficacy of Bacille Calmette-Guérin (BCG) vaccination compared to placebo against acute respiratory infections in the elderly who are less protected by standard vaccines against influenza than other age groups.
The investigators hypothesize that BCG vaccination can reduce incidence of infection and severity of a range of acute respiratory infections.
Patients who are residents of participating long-term care facilities (LTCFs), who agree to participate in the study, or with a legal guardian who agrees on their behalf, will be randomly assigned to receive BCG vaccination or a placebo.
Participants will be followed for up to six months to assess the incidence of infection and the severity of a range of acute respiratory infections.
Přehled studie
Postavení
Staženo
Podmínky
Intervence / Léčba
Detailní popis
This is a Phase III, double-blind, randomized placebo-controlled trial comparing efficacy of BCG vaccination to that of placebo in reducing severity of a range of acute respiratory infections. Participants will need to meet eligibility criteria in order to be included in the study. Those selected will be asked to provide a blood sample for complete blood count, liver function and renal tests, tests to calculate MELD score, also serological testing.
Participants will be randomized in a 1:1 allocation to receive intradermal administration of BCG vaccination or placebo at baseline. During follow-up, the study team will monitor participants' health status by using intermittent surveys about the presence of adverse events potentially related to vaccination, clinic visits or hospitalization for acute respiratory infection, BioFire® Respiratory 2.1 panel for respiratory pathogens and disease outcome status.
The investigators will screen 980 individuals to enroll 830 participants, resulting in 415 receiving BCG vaccine and 415 receiving placebo. The proposed enrollment sample size is designed to provide 80% power to detect 60% vaccine efficacy (a relative risk of 0.4 among the vaccinated) with 0.05 type-1 error in a two-tailed test, assuming 10% lost to follow-up. The number of individuals screened assumes about 15% will not be eligible to be enrolled after screening.
Objective: To measure the impact of one-time BCG-Japan vaccination on acute respiratory infections leading to hospitalization in the elderly.
Primary Endpoint 1: The cumulative incidence of hospitalization for acute respiratory infection following BCG vaccination compared to that following placebo, starting from 14 days post-vaccination, as defined using relevant ICD-10 codes.
If BCG vaccine is shown to be effective in this age group, it will be of major benefit to both study participants and other elderly individuals at risk for acute respiratory infections and have added protection from disease. Identification of an intervention that can reduce the risk of infection and/or of being hospitalized with ARI would reduce the number of new cases and reducing the number of cases that require hospital admission and vast resources.
Typ studie
Intervenční
Fáze
- Fáze 2
- Fáze 3
Kritéria účasti
Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.
Kritéria způsobilosti
Věk způsobilý ke studiu
55 let až 85 let (Dospělý, Starší dospělý)
Přijímá zdravé dobrovolníky
Ano
Pohlaví způsobilá ke studiu
Všechno
Popis
Inclusion Criteria:
- Clients of a long-term care facility
- 55-85 years old
Exclusion Criteria:
- Known previous or current active TB disease
- Exposure to individual with documented active TB within previous three months
- Fever (>37.5 C) within the past 24 hours
Current serious underlying medical conditions:
- HIV+
- Currently taking immunosuppressive or immunomodulatory drugs
- Expect to receive chemotherapy or radiation therapy in the coming six months, receipt of chemotherapy in the past six months or undergoing chemotherapy
- Currently on any anti-cytokine therapy
- History of organ or bone marrow transplantation
- Individual or family history of familial or acquired immune disorder, including auto-immune disorders
- Neutropenia/leukopenia (<500 neutrophils/mm3 or <400 lymphocytes/mm3)
- Chronic kidney disease (Glomerular Filtration Rate< 30 ml/min/1.73m2)
- Elevated liver enzymes (alanine aminotransferase >260 IU/L or aspartate aminotransferase >200 IU/L) or Model for End-Stage Liver Disease (MELD) score ≥30
- Treatment with oral or intravenous steroids at the time of screening, defined as daily doses of 10mg prednisone or equivalent for longer than 3 months.
- Solid or hematologic malignancy including lymphoma, leukemia and other reticuloendothelial system carcinomas within the past two years.
- Presence of Parkinson's disease
- Evidence of dermatitis at site of vaccination
- Living with someone with HIV, immunocompromised, taking immunosuppressive drugs
- Suspicion of active viral or bacterial infection, or taking antivirals or antibiotics
Any vaccine administration two weeks before or after BCG administration. For those who have received the Covid-19 vaccine, the two weeks are considered after the 2nd dose.
- Doctors in Taiwan do not always encourage the use of Covid-19 vaccination due to low incidence of disease and the risk of death due to blood clots in the only approved vaccine for use (AstraZeneca).
- Known allergy to components of the BCG vaccine or prior serious reaction to previous BCG administration
- Plan to leave the long-term care facility within the next three months
- Taking part in any ongoing trial that includes administration of an investigational product relevant to respiratory disease
- Participants with cognitive impairment whose legal guardians cannot be contacted
Studijní plán
Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.
Jak je studie koncipována?
Detaily designu
- Primární účel: Prevence
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Trojnásobný
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
|
Experimentální: BCG Vaccine
Participants randomized to the BCG Vaccine Arm will receive the vaccine.
The vaccination site is about halfway down the outer aspect of the upper arm.
|
0,1 ml rekonstituované BCG vakcíny podané intradermálně na začátku.
|
|
Komparátor placeba: Placebo Arm
Placebo will be administered in an intradermal route in the same location as the BCG vaccines': upper arm.
|
.1 mL of diluent (saline) given intradermally at baseline
|
Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
To measure the impact of one-time BCG vaccination compared to placebo in reducing the occurrence of acute respiratory infection leading to hospitalization in the elderly in Taiwan
Časové okno: 6 months
|
Number of hospitalizations for acute respiratory infection as defined by list of ICD codes
|
6 months
|
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
To measure the impact of one-time BCG vaccination compared to placebo in reducing the occurrence of medically attended acute respiratory infection
Časové okno: 6 months
|
Number of medically attended acute respiratory infection
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on microbiologically confirmed viral respiratory illness
Časové okno: 6 months
|
Number of microbiologically confirmed viral respiratory illness by viral pathogen as measure by BioFire® Respiratory 2.1 PCR panel
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on duration of hospitalization due to acute respiratory infection during the study follow-up period
Časové okno: 6 months
|
Total duration of days spent hospitalized due to acute respiratory infection during the study follow-up period
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on critical admissions during the follow-up period
Časové okno: 6 months
|
Number of critical are admissions during the follow-up period
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on all-cause mortality deaths
Časové okno: 6 months
|
Number of all-cause mortality deaths
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on local and systemic adverse events
Časové okno: 6 months
|
Number of local and systemic adverse events to BCG vaccination following randomization
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on changes of antibody profiles
Časové okno: 6 months
|
Number of changes in antibody profiles between enrollment and follow-up
|
6 months
|
Spolupracovníci a vyšetřovatelé
Zde najdete lidi a organizace zapojené do této studie.
Spolupracovníci
Vyšetřovatelé
- Vrchní vyšetřovatel: Megan Murray, ScD, Harvard Medical School (HMS and HSDM)
Publikace a užitečné odkazy
Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.
Obecné publikace
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- Nemes E, Geldenhuys H, Rozot V, Rutkowski KT, Ratangee F, Bilek N, Mabwe S, Makhethe L, Erasmus M, Toefy A, Mulenga H, Hanekom WA, Self SG, Bekker LG, Ryall R, Gurunathan S, DiazGranados CA, Andersen P, Kromann I, Evans T, Ellis RD, Landry B, Hokey DA, Hopkins R, Ginsberg AM, Scriba TJ, Hatherill M; C-040-404 Study Team. Prevention of M. tuberculosis Infection with H4:IC31 Vaccine or BCG Revaccination. N Engl J Med. 2018 Jul 12;379(2):138-149. doi: 10.1056/NEJMoa1714021.
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- Spencer JC, Ganguly R, Waldman RH. Nonspecific protection of mice against influenza virus infection by local or systemic immunization with Bacille Calmette-Guerin. J Infect Dis. 1977 Aug;136(2):171-5. doi: 10.1093/infdis/136.2.171.
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- Abubakar I, Pimpin L, Ariti C, Beynon R, Mangtani P, Sterne JA, Fine PE, Smith PG, Lipman M, Elliman D, Watson JM, Drumright LN, Whiting PF, Vynnycky E, Rodrigues LC. Systematic review and meta-analysis of the current evidence on the duration of protection by bacillus Calmette-Guerin vaccination against tuberculosis. Health Technol Assess. 2013 Sep;17(37):1-372, v-vi. doi: 10.3310/hta17370.
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Užitečné odkazy
Termíny studijních záznamů
Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.
Hlavní termíny studia
Začátek studia (Očekávaný)
1. května 2022
Primární dokončení (Očekávaný)
1. července 2022
Dokončení studie (Očekávaný)
1. září 2022
Termíny zápisu do studia
První předloženo
28. května 2021
První předloženo, které splnilo kritéria kontroly kvality
23. června 2021
První zveřejněno (Aktuální)
24. června 2021
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
6. července 2022
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
30. června 2022
Naposledy ověřeno
1. června 2022
Více informací
Termíny související s touto studií
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Studuje lékový produkt regulovaný americkým FDA
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Studuje produkt zařízení regulovaný americkým úřadem FDA
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