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Diphtheria clinical trials and research
As of November 12, 2026, Find a Trial lists 2 Diphtheria clinical trials that are recruiting, in China. 2 were first registered in the last 30 days. By phase: Phase 1/2 (1), Phase 2 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 2Clinical trials
- 2New in 30 days
- 1Country
All recruiting trials (2)
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Two-Component Diphtheria-Tetanus-Pertussis Vaccine in Adults and Adolescents
This trial tests different doses of an absorbed acellular pertussis-containing DTP vaccine in people aged 10 and older to see how well it works and how safe it is.
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Diphtheria, Tetanus, Pertussis, and Poliovirus Vaccine Trial in Young Children
This is a small early-phase study testing a diphtheria, tetanus, pertussis and polio vaccine formulation in children from 2 months to 6 years to see if it is safe and can provoke an immune response.
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Quick answers
How many Diphtheria clinical trials are recruiting right now?
2, as of November 12, 2026. 2 of them were first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
All of them have sites in China. Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 1/2: 1, Phase 2: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.