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Adaptive RCT of Corticosteroids for Severe Adenovirus Pneumonia in Adults

An Embedded Adaptive Randomized Controlled Trial of Corticosteroid Therapy for Severe Adenovirus Community-Acquired Pneumonia in Adults

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07152600
Acronym
CAPSTONE-AD
Enrollment
262
Registered
2025-09-03
Start date
2026-02-01
Completion date
2027-12-31
Last updated
2026-01-21

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

Conditions

Adenovirus Infections, Human

Keywords

Adenovirus, community-acquired pneumonia, adaptive randomised controled trial, corticosteroids

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.

Interventions

Methylprednisolone 0.5mg/kg ivgtt qd

Methylprednisolone 1.0mg/kg ivgtt qd

Sponsors

Qingyuan Zhan
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 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); (ix) Hypotension (systolic blood pressure \< 90 mmHg) requiring aggressive fluid resuscitation. * Confirmed adenovirus etiology: at least one positive nucleic acid test (PCR) or next-generation sequencing (NGS) result for adenovirus in respiratory specimens (respiratory secretions, throat swabs, or bronchoalveolar lavage fluid). * Severe community-acquired pneumonia (SCAP) patients admitted to the emergency department/ward/ICU due to respiratory failure within \< 72 hours. * Signed informed consent.

Exclusion criteria

* 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.

Design outcomes

Primary

MeasureTime frame
28-day all cause mortality28 days from inclusion

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026