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Effect of Cyproheptadine on Ventilatory Support-free Days in Critically Ill Patients With COVID-19

Effect of Cyproheptadine on Ventilatory Support-free Days in Critically Ill Patients With COVID-19

Status
UNKNOWN
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04979221
Enrollment
274
Registered
2021-07-28
Start date
2021-07-26
Completion date
2022-02-28
Last updated
2021-08-03

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

Conditions

COVID-19 Pneumonia

Brief summary

This randomized controled open label clinical trial conducted in patients with hypoxemic respiratory failure admitted to the ICU and requiring ventilatory support (invasive or non-invasive) is to evaluate whether treatment with cyproheptadine, a serotonin receptor antagonist, compared to usual care, increases the number of ventilator-free days.

Detailed description

Some studies have shown increased platelet activation and reactivity in patients with COVID-19. This platelet activation is associated with serotonin release. Some characteristics observed during the evolution of COVID-19 may be associated with these increased levels of serotonin. In this scenario, the antagonism of the action of serotonin could improve the clinical course of patients affected by COVID-19. Cyprohepatdine is an anti-serotonergic antihistamine drug with a long track record of safety and tolerability. Investigators will randomize 274 patients who have tested positive for COVID-19 and who will be admitted to the ICU requiring ventilatory support (invasive or non-invasive). Patients will be randomized to a 1:1 ratio for receiving usual care + cyproheptadine (8mg three times a day for 10 days) or usual care. Patients will be followed until discharge to determine length of stay in the ICU and hospital, mortality in the ICU and hospital and days free from ventilatory support during the first 28 days.

Interventions

Cyproheptadine 8mg three times a day during 10 days

Sponsors

Hospital de Clinicas de Porto Alegre
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Positive PCR for SARS-Cov-2 * ICU admission \< 48 hours * Age 18 years or older * Need for invasive or non-invasive ventilatory support (non-invasive ventilation or high-flow nasal cannula) \< 48 hours

Exclusion criteria

* Pregnancy or breastfeeding * Refusal to sign the informed consent form * Expected death in the next 24 hours * Patients taking routinely SSRI or monoamine oxidase inhibitor therapy * Impossibility of using the enteral route * History of seizure disorder * History of adverse reaction to antihistamines or to cyproheptadine * Readmission to the ICU

Design outcomes

Primary

MeasureTime frameDescription
Ventilatory supportDay 28Number of days free from ventiltory support during the first 28 days

Secondary

MeasureTime frameDescription
Length of stay in the intensive care unitThrough study completion, an average of 6 months
Length of stay in the hospitalThrough study completion, an average of 6 months
Mechanical ventilationThrough study completion, an average of 6 monthsDuration of mechanical ventilation
Renal replacement therapyDay 28
ICU MortalityThrough study completion, an average of 6 months
Hospital MortalityThrough study completion, an average of 6 months
Mortality during 28 daysDay 28

Countries

Brazil

Contacts

Primary ContactMarcio M Boniatti, PhD
mboniatti@hcpa.edu.br55 51 3359 8000

Outcome results

None listed

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