Adaptive RCT of Corticosteroids for Severe Adenovirus Pneumonia in Adults
CAPSTONE-AD
An Embedded Adaptive Randomized Controlled Trial of Corticosteroid Therapy for Severe Adenovirus Community-Acquired Pneumonia in Adults
1 other identifier
interventional
262
0 countries
N/A
Brief Summary
Severe community-acquired pneumonia caused by adenovirus (hereafter referred to as severe adenovirus pneumonia) is one of the common forms of severe community-acquired pneumonia in immunocompetent adults. It predominantly affects young individuals, progresses rapidly, and is associated with a high incidence of respiratory failure and multiple organ dysfunction. At present, there is no effective antiviral therapy available in China, and the reported mortality rate ranges from 41.5% to 80%. How to effectively reduce the mortality of severe adenovirus pneumonia, on the basis of conventional supportive care, is crucial for improving the prognosis of critically ill patients and alleviating the burden on families and society. We are currently conducting an adaptive, randomized, open-label controlled trial aimed at reducing mortality in severe adenovirus pneumonia. The primary objective of this study is to evaluate the efficacy and safety of adjunctive corticosteroid therapy at different dosages, in addition to early standard supportive treatment, in lowering mortality among patients with severe adenovirus pneumonia.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Feb 2026
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 26, 2025
CompletedFirst Posted
Study publicly available on registry
September 3, 2025
CompletedStudy Start
First participant enrolled
February 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2027
January 21, 2026
August 1, 2025
1.4 years
August 26, 2025
January 20, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
28-day all cause mortality
28 days from inclusion
Study Arms (3)
Standard of Care
PLACEBO COMPARATORControl group
Low dose steroids
EXPERIMENTALtreated with low dose corticosteroids
Moderate dose steroids
EXPERIMENTALtreated with moderate dose corticosteroids
Interventions
Eligibility Criteria
You may qualify if:
- Age ≥ 18 years.
- Admission to the Intensive Care Unit (ICU).
- Meeting the diagnostic criteria for community-acquired pneumonia (CAP).
- Meeting at least one of the major diagnostic criteria for severe pneumonia:
- (i) Requirement for endotracheal intubation and mechanical ventilation;
- (ii) Septic shock requiring vasopressor therapy after adequate fluid resuscitation.
- Or simultaneously fulfilling three of the minor criteria:
- (i) Respiratory rate ≥ 30 breaths/min;
- (ii) PaO₂/FiO₂ ≤ 250 mmHg;
- (iii) Multilobar infiltrates;
- (iv) Altered mental status and/or disorientation;
- (v) Blood urea nitrogen ≥ 20 mg/dL (7.12 mmol/L);
- (vi) Leukopenia (white blood cell count \< 4 × 10⁹/L);
- (vii) Thrombocytopenia (platelet count \< 100 × 10⁹/L);
- (viii) Hypothermia (core temperature \< 36 °C);
- +4 more criteria
You may not qualify if:
- Patients receiving vasopressor therapy for septic shock at the time of enrollment.
- Terminally ill patients (expected survival \<30 days, e.g., advanced malignancy).
- Clinical history suggesting overt aspiration.
- Documented active gastrointestinal bleeding.
- Presence of cystic fibrosis, obstructive pneumonia, active influenza, pulmonary tuberculosis, or fungal infection.
- Active viral hepatitis or active herpesvirus infection.
- Bone marrow suppression or HIV infection.
- Refusal of mechanical ventilation and endotracheal intubation.
- Uncontrolled hyperglycemia (diabetic ketoacidosis with blood ketones \>3 mmol/L, or hyperosmolar hyperglycemic state with blood glucose \>33.3 mmol/L and elevated osmolality).
- Known allergy to corticosteroids.
- Patients requiring anti-inflammatory corticosteroids or replacement hydrocortisone for any reason, or those already receiving prednisone \>15 mg/day (or equivalent dose of another corticosteroid).
- Pregnant or breastfeeding women.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Qingyuan Zhanlead
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Director
Study Record Dates
First Submitted
August 26, 2025
First Posted
September 3, 2025
Study Start
February 1, 2026
Primary Completion (Estimated)
June 30, 2027
Study Completion (Estimated)
December 31, 2027
Last Updated
January 21, 2026
Record last verified: 2025-08