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Stephan Ehrhardt

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Vice Chair and Professor

Johns Hopkins University

United States

Research Interests

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Recent Grants

Grant: Open

2/2 Multi-Center CLEAN AIR 2 Randomized Control Trial in COPD

Open Date: 2023-09-10

Close Date: 2029-08-31

Grant: Open

Early Intervention to Promote Cardiovascular Health of Mothers and Children (ENRICH) Multisite Resource and Coordinating Center

Open Date: 2022-05-05

Close Date: 2029-06-30

Grant: Close

Convalescent plasma randomized clinical trials for early COVID-19 treatment.

Open Date: 2020-06-01

Close Date: 2022-08-01

Grant: Close

Consensus guidelines for central IRBs in the multicenter study setting

Open Date: 2014-09-19

Close Date: 2019-06-30

Grant: Close

Pilot study: Prevention of vertical transmission of HBV in China

Open Date: 2014-09-01

Close Date: 2015-12-01

Articles (17)

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Collaborators (13)

Meredith McCormack

Director

Johns Hopkins University School of Medicine

UNITED STATES

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Holger Rohde

Principal investigator

University Medical Center Hamburg-Eppendorf

GERMANY

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Allison McFall

Asst Research Professor

Johns Hopkins University

UNITED STATES

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Moises Huaman

Associate Professor

University of Cincinnati

UNITED STATES

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Alyssa Ziman

Professor

UNITED STATES

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Sarah Bassiouni

University of Michigan

UNITED STATES

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Ralf Matthias Hagen

Ass. Prof

GERMANY

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Evan Mayo-Wilson

Associate Professor

University of North Carolina at Chapel Hill Gillings School of Global Public Health

UNITED STATES

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david sullivan

Johns Hopkins University Bloomberg School of Public Health

UNITED STATES

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Robert Wise

Professor

Johns Hopkins University

UNITED STATES

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Veronica Di Cristanziano

GERMANY

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Stefanie Schoppen

Profesor

Hochschule Fresenius

GERMANY

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Janet Holbrook

Professor

Johns Hopkins University Bloomberg School of Public Health

UNITED STATES

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Stephan Ehrhardt

Research Interests

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Recent Grants

Articles (17)

Respiratory Adverse Events of Weight-Loss Drugs: A Systematic Review and Meta-Analysis

Defining methodologic and other core competencies for PhD-level training in epidemiology

A precision randomized trial to evaluate the impact of tailored hepatitis C treatment adherence support on HCV treatment outcomes among people who inject drugs in India: design and baseline characteristics of the STOP-C trial

No Histopathological Evidence of Inflammation Despite Molecular Detection of <i>Schistosoma</i> spp. and Sexually Transmitted Pathogens in Placental Parenchyma Specimens with Limited Membrane Sampling from West African Women with Uncomplicated Pregnancies

Helicobacter pylori and Impaired Early Childhood Development-Evidence From a Birth Cohort Study From Ghana and Côte d'Ivoire.

Determining sample size for pilot trials: a tutorial.

Clustering of Gastrointestinal Microorganisms in Human Stool Samples from Ghana

Outpatient COVID-19 convalescent plasma recipient antibody thresholds correlated to reduced hospitalizations within a randomized trial.

Absence of measurable quantities of <i>Candida auris</i> and <i>Cryptococcus</i> spp. in the gut microbiota of Ghanaian individuals with and without HIV infection as confirmed by applying multiple real-time PCR assays.

Intrapartum exposure to synthetic oxytocin, maternal BMI, and neurodevelopmental outcomes in children within the ECHO consortium.

Transfusion reactions associated with COVID‐19 convalescent plasma in outpatient clinical trials

Transfusing Convalescent Plasma as Post-Exposure Prophylaxis Against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection: A Double-Blinded, Phase 2 Randomized, Controlled Trial

Screening for Resistant Bacteria, Antimicrobial Resistance Genes, Sexually Transmitted Infections and Schistosoma spp. in Tissue Samples from Predominantly Vaginally Delivered Placentae in Ivory Coast and Ghana

Re-evaluating the role of pilot trials in informing effect and sample size estimates for full-scale trials: a meta-epidemiological study.

Pilot Trial Characteristics, Postpilot Design Modifications, and Feasibility of Full-Scale Trials.

Pilot trials may improve the quality of full-scale trials: a meta-research study.

Monocyte Distribution Width as a Diagnostic Marker for Infection: A Systematic Review and Meta-analysis.

Collaborators (13)

Meredith McCormack

Holger Rohde

Allison McFall

Moises Huaman

Alyssa Ziman

Sarah Bassiouni

Ralf Matthias Hagen

Evan Mayo-Wilson

david sullivan

Robert Wise

Veronica Di Cristanziano

Stefanie Schoppen

Janet Holbrook

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