ArticleNature medicine2016
Protection against malaria at 1 year and immune correlates following PfSPZ vaccination.
Article in Nature medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to 3 registered trials, which are not on this map. Cited by 237 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.
Clinical Trial of PfSPZ Vaccine Administered by Direct Venous Inoculation: Dose Optimization With Heterologous Challenge in Healthy Malaria-Naïve Adults
A Phase 1, Dose Escalation, Open-Label Clinical Trial With Experimental Controlled Human Malaria Infections (CHMI) to Evaluate Safety and Protective Efficacy of an Anti-Malaria Human Monoclonal Antibody, VRC-MALMAB0100-00-AB (CIS43LS), in Healthy, Malaria-Naive Adults
VRC 614: A Phase 1, Dose Escalation, Open-Label Clinical Trial With Experimental Controlled Human Malaria Infections (CHMI) to Evaluate Safety and Protective Efficacy of an Anti-Malaria Human Monoclonal Antibody, VRC-MALMAB0114-00-AB (L9LS), in Healthy Malaria-Naive Adults
Who cites it
237 citing papers in PubMed, 1 synthesis or guideline pooled it, 374 citations in OpenAlex.
- Pooled it
- Safety, tolerability and immunogenicity of a condensed, multi-dose prime regimen of PfSPZ Vaccine for the prevention of Plasmodium falciparum malaria infection.Malaria journal · 2025Trial
- Single immunization with genetically attenuated Pf∆mei2 (GA2) parasites by mosquito bite in controlled human malaria infection: a placebo-controlled randomized trial.Nature medicine · 2025Trial
- Immune responses associated with protection induced by chemoattenuated PfSPZ vaccine in malaria-naive Europeans.JCI insight · 2024Trial
- Innate immune activation restricts priming and protective efficacy of the radiation-attenuated PfSPZ malaria vaccine.JCI insight · 2024Trial
- Safety and protective efficacy of PfSPZ Vaccine administered to HIV-negative and -positive Tanzanian adults.The Journal of clinical investigation · 2024Trial
- Safety and Immunogenicity of Radiation-Attenuated PfSPZ Vaccine in Equatoguinean Infants, Children, and Adults.The American journal of tropical medicine and hygiene · 2023Trial
- A randomized controlled trial showing safety and efficacy of a whole sporozoite vaccine against endemic malaria.Science translational medicine · 2022Trial
- Trial
- Safety and efficacy of a three-dose regimen of Plasmodium falciparum sporozoite vaccine in adults during an intense malaria transmission season in Mali: a randomised, controlled phase 1 trial.The Lancet. Infectious diseases · 2022Trial
- Systems analysis of immune responses to attenuated P. falciparum malaria sporozoite vaccination reveals excessive inflammatory signatures correlating with impaired immunity.PLoS pathogens · 2022Trial
- Repeat controlled human malaria infection of healthy UK adults with blood-stageFrontiers in immunology · 2022Trial
- Safety, immunogenicity and efficacy of PfSPZ Vaccine against malaria in infants in western Kenya: a double-blind, randomized, placebo-controlled phase 2 trial.Nature medicine · 2021Trial
- Trial
- Trial
- Atypical B cells are part of an alternative lineage of B cells that participates in responses to vaccination and infection in humans.Cell reports · 2021Trial
- Trial
- Increase of Dose Associated With Decrease in Protection Against Controlled Human Malaria Infection by PfSPZ Vaccine in Tanzanian Adults.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020Trial
- Chemoprophylaxis Vaccination: Phase I Study to Explore Stage-specific Immunity to Plasmodium falciparum in US Adults.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020Trial
- Safety, Tolerability, and Immunogenicity of Plasmodium falciparum Sporozoite Vaccine Administered by Direct Venous Inoculation to Infants and Young Children: Findings From an Age De-escalation, Dose-Escalation, Double-blind, Randomized Controlled Study in Western Kenya.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020Trial
177 more citing papers are in PubMed but not listed here.
Corrections and comments
- Erratum issued
Authors and funding
56 authors at 8 institutions in 2 countries.
Funding
Abstract
An attenuated Plasmodium falciparum (Pf) sporozoite (SPZ) vaccine, PfSPZ Vaccine, is highly protective against controlled human malaria infection (CHMI) 3 weeks after immunization, but the durability of protection is unknown. We assessed how vaccine dosage, regimen, and route of administration affected durable protection in malaria-naive adults. After four intravenous immunizations with 2.7 × 10(5) PfSPZ, 6/11 (55%) vaccinated subjects remained without parasitemia following CHMI 21 weeks after immunization. Five non-parasitemic subjects from this dosage group underwent repeat CHMI at 59 weeks, and none developed parasitemia. Although Pf-specific serum antibody levels correlated with protection up to 21-25 weeks after immunization, antibody levels waned substantially by 59 weeks. Pf-specific T cell responses also declined in blood by 59 weeks. To determine whether T cell responses in blood reflected responses in liver, we vaccinated nonhuman primates with PfSPZ Vaccine. Pf-specific interferon-γ-producing CD8 T cells were present at ∼100-fold higher frequencies in liver than in blood. Our findings suggest that PfSPZ Vaccine conferred durable protection to malaria through long-lived tissue-resident T cells and that administration of higher doses may further enhance protection.
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.