Diphtheria Clinical Trials

4 recruiting

Diphtheria Trials at a Glance

9 actively recruiting trials for diphtheria are listed on ClinicalTrialsFinder across 6 cities in 6 countries. The largest study group is Phase 1 with 3 trials, with the heaviest enrollment activity in Cheras, Dasmariñas, and Dazhou. Lead sponsors running diphtheria studies include Canadian Immunization Research Network, Changchun BCHT Biotechnology Co., and CanSino Biologics Inc..

Browse diphtheria trials by phase

Treatments under study

About Diphtheria Clinical Trials

Looking for clinical trials for Diphtheria? There are currently 4 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Diphtheria trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Diphtheria clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 19 of 9 trials

Recruiting
Not Applicable

Enhancing Maternal Vaccine Knowledge and Uptake: The InTroDuce-Programme Trial

KnowledgeVaccination UptakeInfluenza+1 more
Universiti Putra Malaysia351 enrolled4 locationsNCT06815250
Recruiting
Phase 4

Concurrent Versus Sequential Administration of Tdap and RSV Vaccines in Pregnancy

PregnancyHealthyRSV+1 more
Canadian Immunization Research Network60 enrolled4 locationsNCT07097012
Recruiting
Phase 1

Clinical Trial of the Adsorbed Acellular Pertussis (Tricomponent) DTaP-Haemophilus Influenzae Type b (Conjugate)-ACYW135 Group Meningococcal (Conjugate) Combined Vaccine

Diphtheria, Tetanus and Acellular PertussisEpidemic MeningitisHaemophilus Influenzae Type B Infection
CanSino Biologics Inc.260 enrolled1 locationNCT07203755
Recruiting
Phase 3

Adsorption of Cell-free Diphtheria and Tetanus (Three-component) Combined With Vaccine Phase III Clinical Trial

Prevent Whooping CoughPrevent DiphtheriaPrevent Tetanus
Changchun BCHT Biotechnology Co.1,650 enrolled1 locationNCT07112144
Recruiting
Phase 1Phase 2

A Phase I/II Study to Evaluate the Safety and Immunogenicity of GC3111B in Healthy Adults

Tetanus-diphtheria-acellular Pertussis (Tdap)
GC Biopharma Corp120 enrolled1 locationNCT06997627
Recruiting
Phase 2Phase 3

A Phase II/III Study to Evaluate the Immunogenicity, Safety and Lot-to-lot Consistency of LBVD, a Fully Liquid Hexavalent Diphtheria-tetanus-whole Cell Pertussis-hepatitis B-poliovirus-Haemophilus Influenzae Type b Conjugate (DTwP-HepB-IPV-Hib) Vaccine, in Healthy Infants as Primary Series

DiphtheriaPoliomyelitisHepatitis B+3 more
LG Chem1,186 enrolled1 locationNCT06947499
Recruiting
Not Applicable

Safety and Immunogenicity of DTaP-IPV/Hib Pentavalent Vaccine in Chinese 2-month-old Infants

DiphtheriaPolioPertussis+2 more
Jiangsu Province Centers for Disease Control and Prevention785 enrolled1 locationNCT06605755
Recruiting
Phase 4

Assessing Interventions to Increase Tdap Acceptance for Non-birthing Partners in Pregnancy

Tdap - Tetanus, Diphtheria and Acellular Pertussis VaccinationNon-birthing Partner Vaccination in PregnancyVaccine Exposure During Pregnancy
Women and Infants Hospital of Rhode Island150 enrolled1 locationNCT06135636
Recruiting
Phase 1

Phase I Clinical Trial of Diphtheria-Tetanus-acellular Pertussis Component Combined Vaccine

DiphtheriaPertussisTetanus
Institute of Medical Biology, Chinese Academy of Medical Sciences460 enrolled3 locationsNCT06184542