Clinical trials
Diphtheria clinical trials
Below are recruiting diphtheria clinical trials, each written for real people, not researchers. We’re tracking 13 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06344065RecruitingPhase 3
New whooping cough combo vaccine for 3-month-old infants
This trial tests a new combination vaccine that protects infants against diphtheria, tetanus, and whooping cough. It is for healthy 3-month-old babies whose parents have not yet given them a similar shot.
Nanning, GuangxiAges 3 months–3 months - NCT07203755RecruitingPhase 1
Combination vaccine for whooping cough, Hib, and meningitis
This trial tests a new combination vaccine that protects against whooping cough, Haemophilus influenzae type b (a cause of meningitis and pneumonia), and several types of meningococcal disease (a cause of meningitis and bloodstream infections). It may help reduce the number of shots needed for children.
Shangqiu, HenanAges 2 months–6 years - NCT06184542RecruitingPhase 1
New DTaP vaccine safety trial for children
This trial tests a new combined vaccine for diphtheria, tetanus, and whooping cough (pertussis) in children of different ages. It aims to see if the vaccine is safe and how well it works, helping to protect against these serious diseases.
Dazhou, SichuanAges 2 months–6 years - NCT07112144RecruitingPhase 3
DTaP vaccine trial for healthy infants aged 2 months
This trial tests a new vaccine that protects against diphtheria, tetanus, and pertussis (whooping cough). It is for healthy infants who are about 2 months old and live permanently in the area. The goal is to see if the vaccine is safe and works well.
Wenshan Zhuang and Miao Autonomous Prefecture, YunnanAges 2 months–3 months - NCT06639074RecruitingPhase 2
Folate receptor dendritic cell vaccine for ovarian cancer
This trial tests a personalized vaccine made from your own immune cells, designed to target a protein called folate receptor alpha found on many ovarian cancer cells. It is for people who have finished initial chemotherapy and have no signs of cancer remaining, to try to prevent it from coming back.
Scottsdale, ArizonaAges 18 years+ - NCT06333275Recruiting
Boosting immunity after CAR-T therapy
This trial checks if giving vaccines after CAR-T cell therapy can help your immune system fight off preventable diseases. It is for adults with certain blood cancers who are about to get CAR-T treatment.
BernAges 18 years+ - NCT07706673Enrolling by invitationPhase 4
Long-term follow-up for HPV vaccine study participants
This study checks on people who got one or two doses of the HPV vaccine (Gardasil 9) during the earlier ESCUDDO study. It helps researchers see how well the vaccine protects over many years, which might lead to simpler vaccination schedules.
Liberia, Guanacaste ProvinceAges 18 years+ - NCT07097012RecruitingPhase 4
Whooping cough and RSV vaccines: together or separate in pregnancy
This study tests whether giving two vaccines—one for whooping cough (Tdap) and one for RSV—at the same time is safe and effective compared to giving them separately during pregnancy. It may help protect your baby from both diseases early in life.
Vancouver, British ColumbiaAges 18–49 - NCT07005726Enrolling by invitationPhase 4
BCG revaccination with DTP3 to reduce infant deaths in Africa
This study tests whether giving another BCG vaccine (the one for tuberculosis) at the same time as the third DTP shot can help reduce serious infections and deaths in babies in Africa. If your baby is healthy and getting their routine DTP3, this could be an option to possibly boost their overall protection.
BissauAges 3 months–6 months - NCT06997627RecruitingPhase 1/Phase 2
Safety and immune response study of GC3111B vaccine in healthy adults
This trial tests a new vaccine called GC3111B to see if it is safe and helps the body build protection against diphtheria, tetanus, and pertussis (whooping cough). It is for healthy adults who have not had a similar vaccine in the last 2 years.
SeoulAges 19–64 - NCT06815250Recruiting
Boosting maternal vaccine knowledge and uptake: The InTroDuce-Programme
This trial tests a programme to help pregnant women learn about and get flu and Tdap vaccines. It aims to increase vaccination rates and improve health for mothers and babies.
Bandar Baru Bangi, SelangorAges 18 years+ - NCT05415267RecruitingPhase 3
Boosting COVID protection during long-term immune suppression
This study looks at how well a COVID-19 booster works in adults who need long-term medicines that lower immune response. It aims to see whether immunosuppressed people benefit from booster vaccination safely.
Blacktown, New South WalesAges 18 years+ - NCT05096481RecruitingPhase 2
Vaccine for brain tumors in children and young adults
This trial tests a vaccine that may help the immune system fight brain tumors (medulloblastoma, high-grade glioma, and DIPG). It is for patients who have already had standard treatment and whose tumors are still present or have returned.
Aurora, ColoradoAges 3–39
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Common questions
- Are there clinical trials for diphtheria?
- Yes. Clin2 currently lists 13 recruiting diphtheria studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a diphtheria trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a diphtheria trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.