Clinical trial · Observational
The Characteristics of Oral Microbiota in Chronic Pancreatitis and Autoimmune Pancreatitis
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
There are more than 700 different bacteria colonized in human oral cavity, which are collectively referred to as oral microbiota. Emerging evidence suggests that oral microbiota plays a series of important roles in human health, such as immune response, carcinogen metabolism and nutrient digestion. The changes of oral microbiota composition are closely related to the occurrence and development of pancreatic diseases. Previous studies have found that there are dense bacterial biofilms in the pancreatic duct of patients with calcified pancreatitis, including oral bacterial types. However, most studies only focused on the changes of gut microbiota in patients with chronic pancreatitis, and there were lack of research and description on the changes of oral microbiota in patients with chronic pancreatitis. In this study, we will extract and sequence bacterie's full-length 16S rRNA to describe the characteristics of oral microbiota in patients with chronic pancreatitis, confirming that there are changes in oral microbiota in patients with chronic pancreatitis, and compare the differences of oral microbiota in patients with chronic pancreatitis, pancreatic cancer and autoimmune pancreatitis.
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Oral Microbiota | — | UNRESOLVED | — |
| Pancreatic Cancer | Malignant Pancreatic Neoplasm | CURATED_EXACT | 0.92 |
| Pancreatitis | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| 16S rRNA sequencing | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (4)
- label
- chronic pancreatitis
- description
- Clinical data including medical history, clinical symptoms, imaging examination, laboratory examination will be collected. 3-5ml saliva sample of every patients will be collected for 16S rRNA sequencing of oral microbiota.
- interventionNames
- Other: 16S rRNA sequencing
- label
- autoimmune pancreatitis
- description
- Clinical data including medical history, clinical symptoms, imaging examination, laboratory examination will be collected. 3-5ml saliva sample of every patients will be collected for 16S rRNA sequencing of oral microbiota.
- interventionNames
- Other: 16S rRNA sequencing
- label
- pancreatic cancer
- description
- Gender, age (± 5 years), smoking and drinking are matched with patients with chronic pancreatitis. Clinical data including medical history, clinical symptoms, imaging examination, laboratory examination will be collected. 3-5ml saliva sample of every patients will be collected for 16S rRNA sequencing of oral microbiota. considering sugery or endoscopy may change the oral microbiota, the saliva sample will be collected in pantients with suspected pancreatic cancer. Only pantients with pathologically confirmed pancreatic cancer will be inclueded in final analysis
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * A dated and signed informed consent form cooperate to complete sample collection Exclusion Criteria: * Previous digestive system surgery; During pregnancy or lactation; Complicated with infectious diseases, malignant tumors or other digestive system diseases (such as inflammatory bowel disease, irritable bowel syndrome, abdominal diseases, gastroesophageal reflux, etc.); Antibiotics and immunosuppressive drugs were used within 30 days before sampling; Those who take probiotics daily.
References
Publications (0)
Data not yet available