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Specific Metabolic Adaptation and Functional Remodeling of ?d T Cell Subsets in Critically Ill Patients in the Intensive Care Unit: A Single-Center, Prospective, Observational Cohort Study

Specific Metabolic Adaptation and Functional Remodeling of ?d T Cell Subsets in Critically Ill Patients in the Intensive Care Unit: A Single-Center, Prospective, Observational Cohort Study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600127475
Enrollment
Unknown
Registered
2026-07-01
Start date
2026-07-01
Completion date
Unknown
Last updated
2026-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-sepsis Critical Illness Group: Critical illness (including severe trauma, post-major surgery, multiple organ dysfunction, etc., non-infectious etiology)Sepsis Critical Illness Group: Sepsis (meeting the Sepsis-3 criteria, defined as organ dysfunction resulting from infection)

Interventions

Non-septic critical illness (e.g., severe trauma, major surgery, etc.):none
Healthy control:none
Septic Critical Illness:none

Sponsors

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Healthy control group: (1) Age >=18 years old; (2) No acute or chronic major diseases; (3) Sign a written informed consent form. 2. Non-sepsis critical care group: (1) Age >=18 years old; (2) Admitted to the ICU, meeting the criteria for critical illness; (3) Exclusion of Sepsis by Sepsis-3 criteria; (4) Sign a written informed consent form (either by oneself or by a legally authorized agent). 3. Sepsis Critical Care Group: (1) Age >=18 years old; (2) Admitted to the ICU, meeting the Sepsis-3 criteria; (3) Sign a written informed consent form (either by oneself or by a legally authorized agent).

Exclusion criteria

Exclusion criteria: 1. Age 1 mg/kg/d prednisone equivalent) before or within 24 hours after admission to the ICU; 4. Have used immune checkpoint inhibitors (such as anti-PD-1 /PD-L1/CTLA-4 antibodies) recently (<6 weeks); 5. The estimated length of stay in the ICU is less than 24 hours or there is a risk of immediate death. 6. Pregnant or lactating women; 7. There is active massive hemorrhage; 8. Informed consent cannot be obtained.

Design outcomes

Primary

MeasureTime frame
Correlation between glycolytic capacity of ?d T cells and 28-day mortality;Correlation between glycolytic capacity of ?d T cells and 90-day mortality;Glycolytic capacity;

Secondary

MeasureTime frame
Mitochondrial membrane potential of ?d T cells;28-day mortality;Rectal swab collection-related discomfort;Correlation between ?d T cell glycolytic capacity and lactate level;PD-1 expression on ?d T cells;Correlation between ?d T cell glycolytic capacity and vasopressor dose;Correlation between ?d T cell glycolytic capacity and SOFA score;ICU mortality;Effector function of ?d T cells (cytokine secretion);Abundance of specific bacterial genera (e.g., short-chain fatty acid-producing bacteria);CD69 expression on ?d T cells;LAG-3 expression on ?d T cells;Gut microbiota alpha diversity;90-day mortality;Ki67 expression on ?d T cells;TIM-3 expression on ?d T cells;Length of hospital stay;Gut microbiota beta diversity;Correlation between ?d T cell glycolytic capacity and APACHE ? score;Correlation between fecal metabolites and ?d T cell glycolytic capacity;Mitochondrial reactive oxygen species (mtROS) level of ?d T cells;Fecal metabolites (short-chain fatty acids, bile acids);In-hospital mortality;Blood sampling-related adverse events;

Countries

China

Contacts

Public ContactZhang Jiancheng

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

zhjcheng1@126.com+86 13554105815

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jul 23, 2026