Trial reportVaccine2014
Phase II randomized, double-blinded comparison of a single high dose (5×10(8) TCID50) of modified vaccinia Ankara compared to a standard dose (1×10(8) TCID50) in healthy vaccinia-naïve individuals.
Trial report in Vaccine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.
- Pooled it
- One- and Two-Dose Vaccinations With Modified Vaccinia Ankara-Bavarian Nordic Induce Durable B-Cell Memory Responses Comparable to Replicating Smallpox Vaccines.The Journal of infectious diseases · 2023Trial
- Trial
- Trial
- Trial
- Article
- Organoid Models to Study Human Infectious Diseases.Cell proliferation · 2025Review
- Emerging and Pandemic Pathogens: Lessons Learned From a Clinical Research Network.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Review
- A multivalent mRNA vaccine elicits robust immune responses and confers protection in a murine model of monkeypox virus infection.Nature communications · 2025Article
- Vaccines in Dermatology-Present and Future: A Review.Vaccines · 2025Review
- Article
- MVA-based vaccines are protective against lethal eastern equine encephalitis virus aerosol challenge in cynomolgus macaques.NPJ vaccines · 2024Article
- Multi-valent mRNA vaccines against monkeypox enveloped or mature viron surface antigens demonstrate robust immune response and neutralizing activity.Science China. Life sciences · 2023Article
- mRNA vaccines encoding fusion proteins of monkeypox virus antigens protect mice from vaccinia virus challenge.Nature communications · 2023Article
- Review
- Cross-reactive immune responses to monkeypox virus induced by MVA vaccination in mice.Virology journal · 2023Article
- Advances and perspectives in the development of vaccines against highly pathogenic bunyaviruses.Frontiers in cellular and infection microbiology · 2023Review
- A Nucleic Acid-Based Orthopoxvirus Vaccine Targeting the Vaccinia Virus L1, A27, B5, and A33 Proteins Protects Rabbits against Lethal Rabbitpox Virus Aerosol Challenge.Journal of virology · 2022Article
- Review
- Polysaccharide-based chromatographic adsorbents for virus purification and viral clearance.Journal of pharmaceutical analysis · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
Abstract
introductionReintroduction of Variola major as an agent of bioterrorism remains a concern. Time to seroconversion and plaque reduction neutralizing antibody titers (PRNT) of 1 or 2 standard doses (SD) were compared to a single high dose (HD) of modified vaccinia Ankara (MVA).
methodsNinety subjects were randomized 1:1 to receive 1 HD or 2 SD of MVA subcutaneously on Days 0 and 28 in a placebo-controlled trial. Serum was collected for PRNT and ELISA. Subjects were followed for safety for the entire study.
resultsThe HD was well-tolerated. Using Bavarian Nordic's ELISA, subjects in both groups achieved seroconversion by Study Day 15 (HD) and Day 28 (SD). Before second vaccination, the hazard rate of seroconverting for the HD group was 1.7 times the SD group with a median time for seroconversion of 14 days for both groups. The peak titer of one HD vaccine was superior to one dose of SD vaccine but inferior to the peak titer after the second dose of the SD vaccination regimen. Using Saint Louis University's PRNT, peak titers were 95.8 and 65.2 for the HD and SD groups, respectively, prior to second vaccination. Non-inferiority of the SD group was not established. The proportions of positives were 93.3% (42/45) and 82.2% (37/45) for the HD and SD groups, respectively. The peak titer after two standard doses was superior to that of the HD.
conclusionsHD MVA was safe and well-tolerated. While the hazard rate for seroconverting was significantly higher in the HD group before second dose, the effect was small as the median time to seroconversion was identical. When comparing PRNT, non-inferiority of one SD was not established and the peak titers were low for both groups. The HD peak response was inferior to the standard two-dose regimen response based on ELISA and PRNT.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.