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A Gram-positive bacterial infection caused by Corynebacterium diphtheriae. It usually involves the oral cavity, pharynx, and nasal cavity. Patients develop pseudomembranes in the affected areas and manifest signs and symptoms of an upper respiratory infection. The diphtheria toxin may cause myocarditis, polyneuritis, and other systemic effects.
Biomarker and diagnostic research for diphtheria has been reported in the published literature.
1 FDA-approved treatment is available for diphtheria, including ERYTHROMYCIN (ERYTHROMYCIN, approved 1981).
Brand Name | Generic Name | Mechanism | Approved | Market Status |
|---|---|---|---|---|
22 clinical trials registered, 7 recruiting. Interventions under study include biologic therapy and other interventions. Pipeline includes 3 PHASE4, 7 PHASE3, 3 PHASE2. Research is sponsored by a mix of industry and academic institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT06997627](https://clinicaltrials.gov/study/NCT06997627) |
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 8:23 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
ERYTHROMYCIN |
— |
1981 |
Available |
Gene therapy approaches for diphtheria have been reported in the published literature.
22 trials found
A Phase I/II Study to Evaluate the Safety and Immunogenicity of GC3111B in Healthy Adults
PHASE1 |
GC Biopharma Corp |
RECRUITING |
[NCT06184542](https://clinicaltrials.gov/study/NCT06184542) | Phase I Clinical Trial of Diphtheria-Tetanus-acellular Pertussis Component Combined Vaccine | PHASE1 | Institute of Medical Biology, Chinese Academy of Medical Sciences | RECRUITING |
[NCT06135636](https://clinicaltrials.gov/study/NCT06135636) | Assessing Interventions to Increase Tdap Acceptance for Non-birthing Partners in Pregnancy | PHASE4 | Women and Infants Hospital of Rhode Island | RECRUITING |
[NCT07097012](https://clinicaltrials.gov/study/NCT07097012) | Concurrent Versus Sequential Administration of Tdap and RSV Vaccines in Pregnancy | PHASE4 | Canadian Immunization Research Network | RECRUITING |
[NCT06815250](https://clinicaltrials.gov/study/NCT06815250) | Enhancing Maternal Vaccine Knowledge and Uptake: The InTroDuce-Programme Trial | NA | Universiti Putra Malaysia | RECRUITING |
249 publications have been identified in PubMed for diphtheria. Kisho has analyzed 112 by research type. Research spans Epidemiology / Natural History (36%), Review / Meta-Analysis (22%), and Clinical Trial Publication (12%).
Research Type | Count | % of Total |
|---|---|---|
Disease patterns and progression | 40 | 36% |
Research summaries | 25 | 22% |
Clinical study results | 13 | 12% |
Laboratory research | 13 | 12% |
Patient case studies | 10 | 9% |
Other research | 5 | 4% |
New treatment approaches | 4 | 4% |
Testing and diagnosis research | 2 | 2% |
Jean Baptiste AE (2026). [PMID: 41878584](https://pubmed.ncbi.nlm.nih.gov/41878584/). *BMJ Public Health*. [Review / Meta-Analysis]
Sams W (2026). [PMID: 41260854](https://pubmed.ncbi.nlm.nih.gov/41260854/). *Emerg Med Clin North Am*. [Review / Meta-Analysis]
Edrees WH (2026). [PMID: 41715022](https://pubmed.ncbi.nlm.nih.gov/41715022/). *BMC Infect Dis*. [Epidemiology / Natural History]
Lamichhane A (2026). [PMID: 32809746](https://pubmed.ncbi.nlm.nih.gov/32809746/). *Unknown Journal*. [Basic Science / Preclinical]
Callison C (2026). [PMID: 32644434](https://pubmed.ncbi.nlm.nih.gov/32644434/). *Unknown Journal*. [Epidemiology / Natural History]
König I (2026). [PMID: 41925373](https://pubmed.ncbi.nlm.nih.gov/41925373/). *Microbiol Spectr*. [Basic Science / Preclinical]
Morabito G (2026). [PMID: 41505127](https://pubmed.ncbi.nlm.nih.gov/41505127/). *JAMA Netw Open*. [Epidemiology / Natural History]
Ogden SA (2026). [PMID: 31424757](https://pubmed.ncbi.nlm.nih.gov/31424757/). *Unknown Journal*. [Diagnostic / Biomarker]
Justiz Vaillant AA (2026). [PMID: 30422490](https://pubmed.ncbi.nlm.nih.gov/30422490/). *Unknown Journal*. [Epidemiology / Natural History]
Kobaidze K (2026). [PMID: 42186363](https://pubmed.ncbi.nlm.nih.gov/42186363/). *J Hosp Med*. [Case Report / Case Series]
AI-curated news mentioning diphtheria
Updated Feb 24, 2026
A recent case study highlights the complications of diphtheria in a pediatric patient, specifically focusing on renal failure and myocarditis. This case underscores the need for heightened awareness and understanding of diphtheria's severe manifestations.