Status:
NOT_YET_RECRUITING
BPL-1357 Against H1N1 Influenza Virus Challenge
Lead Sponsor:
National Institute of Allergy and Infectious Diseases (NIAID)
Conditions:
Influenza
Human
Eligibility:
All Genders
18-55 years
Phase:
PHASE2
Brief Summary
Background: Influenza (flu) infections are a serious global health threat. Each year, between 3 and 5 million people get the flu, and up to 500,000 die from it. Current vaccines protect against seaso...
Detailed Description
Study Description: This is a randomized, double-blinded, placebo-controlled, multicenter, phase 2 clinical trial of beta-propiolactone (BPL)-inactivated quadruple influenza virus cocktail vaccine (BP...
Eligibility Criteria
Inclusion
- INCLUSION CRITERIA:
- Individuals must meet all of the following criteria to be eligible for study participation:
- Adults \>=18 and \<= 55 years of age at the time of consent.
- Able to provide written informed consent.
- Non-smoker (i.e., tobacco and cannabis) and does not use vape or e-cigarette products currently. Also, must not have used any of these products extensively in the past (regular use more than 5 times per week, more than 6 months lifetime total).
- Has not received influenza vaccination of any type within 8 weeks (about 2 months) prior to enrollment and consents to not receive influenza vaccination of any type until after the end of study participation (PBD63).
- Has not received any other vaccination of any type within 4 weeks prior to enrollment and consents to not receive any unlicensed vaccine until after the end of the study (PBD63).
- Has not received any broadly protective influenza vaccine in the past.
- Participants of childbearing potential must meet one of the following criteria through the end of study participation (PBD63):
- Is infertile, including postmenopausal status (as defined by age .45 years plus no menses for \>= 1 year without an alternative medical cause) or history of hysterectomy or bilateral oophorectomy.
- Agrees that, when engaging in intercourse that can result in pregnancy, they will use an acceptable or highly effective form of contraception, and their male partner will use a condom with spermicide. Acceptable methods of female contraception include
- the following:
- Bilateral tubal ligation
- Implant of levonorgestrel
- Injectable progestogen
- Oral contraceptive pills
- Diaphragm with spermicide
- Intrauterine device (IUD)
- Sexual abstinence
- Vasectomized partner
- Able to speak and understand English (NIH).
- Able to speak and understand English and/or Spanish (UTMB).
- A negative HIV test within 6 months before enrollment.
- Has not used IN medications (including but not limited to nasal sprays, sinus rinses), and has not routinely used over-the-counter medications (including but not limited to aspirin, decongestants, antihistamines, and other nonsteroidal anti-inflammatory drugs), and herbal medications (including but not limited to herbal tea or St. John fs Wort) within 14 days (about 2 weeks) prior to study enrollment and agrees not to use these medications until after the end of study participation (PBD63), unless approved by the investigator.
- Agrees not to donate blood or blood products from enrollment through the final study visit (PBD63).
- Not planning on cohabitating with any high-risk individuals (e.g., infants, elderly, those with high-risk conditions (e.g., pregnancy, medical conditions such as those outlined in exclusion criterion 1) for at least 2 weeks after discharge from the inpatient portion of this study.
- Participant is willing and able to comply with all trial procedures.
- EXCLUSION CRITERIA
- Individuals meeting any of the following criteria will be excluded from study participation:
- Current medical conditions (self-reported or medically documented) including but not limited to:
- Chronic pulmonary disease (e.g., asthma, emphysema).
- Chronic cardiovascular disease (e.g., cardiomyopathy, congestive heart failure, cardiac surgery, ischemic heart disease, known anatomic defects).
- Chronic medical conditions requiring close medical follow-up or hospitalization (e.g., insulin-dependent diabetes mellitus, renal dysfunction, hemoglobinopathies).
- Immunosuppression, immune deficiency, or ongoing malignancy.
- Neurological and neurodevelopmental condition (e.g., Bell s palsy, cerebral palsy, epilepsy, seizures).
- Body mass index (BMI) \<18 and \>35.
- Pregnant or breastfeeding.
- History of postinfectious or postvaccine neurological sequelae including GBS.
- History of stroke within the past 5 years.
- Acute illness within 7 days prior to enrollment (PAD0).
- Known allergy to influenza vaccination or components contained in the influenza vaccine being used.
- Known allergy to influenza treatments (including oseltamivir or nonsteroidal anti-inflammatory medications).
- Known allergy to 2 or more classes of antibiotics (e.g., penicillins, cephalosporins, fluoroquinolones, or glycopeptides).
- Receipt of blood or blood products (including immunoglobulins) within 3 months prior to enrollment.
- Receipt of any unlicensed drug or investigational agent within 3 months or 5.5 half-life (whichever is greater) prior to enrollment.
- Receipt of any unlicensed vaccine within 6 months prior to enrollment.
- Self-reported or known history of alcoholism or drug abuse or use within 6 months prior to enrollment, or positive urine test for illicit drugs (i.e., amphetamines, cocaine metabolites, benzodiazepines, opiates, but not tetrahydrocannabinol) prior to vaccination on PAD0.
- Self-reported or known history of psychiatric or psychological issues that require treatment and are deemed by the PI to be a contraindication to protocol participation.
- History of angioedema or anaphylaxis.
- Study site staff who directly report to the study or site PI are excluded from participation.
- Any condition, event or lab value that, in the judgment of the investigator, is a contraindication to protocol participation or would place the participant at increased risk for participation.
- Any condition or event that, in the judgment of the investigator, impairs the participant's ability to give informed consent.
- Individuals meeting any of the following criteria will be excluded from participation in Phase B:
- Positive urine test for illicit drugs (i.e., amphetamines, cocaine metabolites, benzodiazepines, opiates, but not tetrahydrocannabinol) prior to inoculation (PBD0).
- Acute illness within 7 days prior to inoculation with the human challenge virus (PBD0).
- Grade 3 or greater sign, symptom, or lab abnormality that is clinically significant and (in the opinion of the site PI) puts the participant at higher risk of adverse effects with influenza challenge.
- Pregnant or breastfeeding.
- Positive test for influenza within 8 weeks prior to challenge.
Exclusion
Key Trial Info
Start Date :
March 2 2026
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
March 1 2028
Estimated Enrollment :
126 Patients enrolled
Trial Details
Trial ID
NCT07215858
Start Date
March 2 2026
End Date
March 1 2028
Last Update
October 28 2025
Active Locations (2)
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1
National Institutes of Health Clinical Center
Bethesda, Maryland, United States, 20892
2
University of Texas Medical Branch, Galveston
Galveston, Texas, United States, 77555