Vitamin C, Hydrocortisone and Thiamine for Septic Shock

Shock, Septic Clinical Trial

— CORVICTES  

Official title:

A Randomized, Double Blind, Placebo-Controlled Trial to Investigate the Effect of Vitamin C, Hydrocortisone and Thiamine on the Outcome of Patients With Septic Shock

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03592693
• Other study ID #: 236-16-10-2017
• Status: Recruiting
• Phase: Phase 2
• Start date: September 6, 2018
• Est. completion date: December 2025

Study information

• Verified date: May 2023
• Source: University of Athens
• Contact: Anastasia Kotanidou, MD, PHD, Professor
• Phone: +306977077105
• Email: akotanid[@]gmail.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Prior data has shown that both corticosteroids and vitamin C reduce the activation of nuclear factor ƘB (NFƘB), thereby ultimately attenuating the systemic inflammatory response to sepsis/septic shock and augmenting the responsiveness to vasopressors. Therefore, the current investigators hypothesized that the combined use of vitamin C and stress-dose hydrocortisone may improve the outcomes of patients with septic shock. The investigators intend to perform a randomized, multicenter, parallel group, double-blind, placebo-controlled trial of vitamin C plus stress-dose hydrocortisone or placebo plus placebo for a total of four days after randomization of patients fulfilling the current consensus criteria for septic shock. The primary outcome will be hospital mortality, whereas the scondary outcomes will include 60-day, 28-day mortality, time to vasopressor cessation, procalcitonin clearance and change in the Sequential Organ Failure Assessment score over the first 4 days after randomization, neurologic failure-free days, and length of stay in the intensive care unit (ICU) and the hospital. Target enrollment will be 400 patients.

Description:

Background and Significance:

The global burden of sepsis is substantial with an estimated 15 to 19 million cases per year; the vast majority of these cases occur in low income countries. With more timely diagnosis and improvement in supportive care the 28-day mortality from sepsis in high income countries has declined to about 25%, however, the mortality from septic shock remains as high as 45%. Moreover, the mortality from sepsis and septic shock in low income countries is reported to be as high as 60%. Over the last 3 decades over 100 phase II and phase III clinical trials have been performed testing various novel pharmacologic agents and therapeutic interventions in an attempt to improve the outcome of patients with sepsis and septic shock; all of these studies have failed to show an improvement in patient outcomes. A large body of experimental data has demonstrated that both corticosteroids and intravenous vitamin C reduce activation of nuclear factor ƘB (NFƘB) and attenuatethe release of pro-inflammatory mediators, reduce the endothelial injury characteristic of sepsis (thereby reducing endothelial permeability and improving macrocirculatory flow), augment the release of endogenous catecholamines, and enhance vasopressor responsiveness. In addition, recent evidence suggests that thiamine may be neuroprotective in severe shock states.

Specific Aims of the Study:

The aim of this study is to determine the effect of the combination of intravenous vitamin C, hydrocortisone and thiamine on the clinical course and outcome of patients with septic shock.

Study Design:

This study will be performed at 4 tertiary Greek Intensive Care Units (ICUs). All patients admitted to any ICU of the participating hospitals with the primary diagnosis of severe sepsis or septic shock will be screened for inclusion. The diagnosis of septic shock will be based on recent consensus criteria.

ICU management protocol:

All septic patients enrolled in this study will be managed by a standardized approach which will comprise:

i. Empirical treatment with broad spectrum antibiotics, which will be subsequently deescalated according to microbiological data and clinical improvement ii. A conservative strategy of fluid and vasopressor management. iii. A lung-protective ventilation strategy. iv. Limited use of sedative agents (dexmedetomidine will be the preferred agent) v. Enteral nutrition with a whey-based formula using an intermittent bolus protocol which will preferrably be started within 24 hours of ICU admission.

vi. Prophylaxis against deep venous thrombosis prophylaxis with both enoxaparin (or heparin in patients with a calculated creatinine clearance < 30ml/min) and sequential compression.

vii. Permissive hyperglycemia (blood glucose of 150-200 mg/dL).

Vitamin C, Hydrocortisone and Thiamine dosing protocol and randomization

This is a double-blind placebo controlled study. Only the pharmacist will be aware of the treatment allocation. Patients will be randomized to receive either vitamin C/hydrocortisone or placebo plus placebo using a random number table provided to the dispensing pharmacists. Each patient will be allocated a unique participant ID which will be linked to the randomization sequence. Only the dispensing pharmacists will have a record of the participant ID and randomization sequence. The vitamin C/placebo and hydrocortisone/placebo will be formulated as follows:

Vitamin C: 1500 mg of vitamin C will be dissolved in a 50 or 100 mL bag of normal saline and will be infused over 1 hour. The dosing schedule will be 1500 mg every 6 hours for 4 days or until discharge from the ICU.

Vitamin C placebo will consist of an identical bag of 50 or 100 mL normal saline (but with no vitamin C) and will be labeled vitamin C. Placebo will be infused over 1 hour as per the infusion instructions of the active vitamin.

Hydrocortisone: Patients will be treated with hydrocortisone 50mg IV q 6 hourly for 4 days or until ICU discharge.

Optional dosing strategy: Hydrocortisone 50 mg bolus, followed by a 24-hour continuous infusion of 200 mg (in 50 or 100 ml normal saline) for 4 days.

Hydrocortisone placebo will be provided as an identical syringe/50 or 100 mL bag of normal saline.

Thiamine: As a high percentage of septic patients have been shown to be thiamine deficient, patients will receive intravenous thiamine 200mg q 12 hourly for 4 days or until ICU discharge. Thiamine is also a cofactor for the metabolism of oxalate (a byproduct of vitamin C metabolism), with thiamine deficiency increasing oxalate levels. To simplify the study, both the intervention and control group will receive thiamine.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 400
• Est. completion date: December 2025
• Est. primary completion date: December 2025
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• i. Diagnosis of septic shock within 12 hours of admission to the ICU

Exclusion Criteria:

• i. Age < 18 years ii. Pregnant iii. Patients with an end-stage underlying disease who are unlikely to survive to hospital discharge iv. Patients with acquired immunodeficiency syndrome and a CD4 count of < 50 per microliter v. Patients with known glucose-6 phosphate dehydrogenase (G-6PD) deficiency. vi. Patients with septic shock transferred from another hospital vii. Patients with septic shock for more than 12 hours viii. Patients who require off-label treatment with corticosteroids for an indication other than sepsis ix. Lack of written, informed consent

Related Conditions & MeSH terms

• Shock
• Shock, Septic

Intervention

Drug:
• Combined Vitamin C and Stress-Dose Hydrocortisone
Treatment of septic shock with vitamin C and stress-dose hydrocortisone aimed at the attenuation of the systemic inflammatory response and the improvement of vasopressor responsiveness.
• Placebo plus placebo
Treatment of septic shock with placebo (corresponding to Vitamin C) and placebo (corresponding to hydrocortisone).

Locations

Country	Name	City	State
Greece	Evaggelismos General Hospital	Athens	Attica
Greece	General Hospital of Nikaia Saint Panteleimon	Piraeus	Attica

Sponsors (3)

Lead Sponsor	Collaborator
University of Athens	General Hospital of Nikaia "Saint Panteleimon", Naval Hospital, Athens

Country where clinical trial is conducted

Greece, 

References & Publications (2)

Marik PE, Khangoora V, Rivera R, Hooper MH, Catravas J. Hydrocortisone, Vitamin C, and Thiamine for the Treatment of Severe Sepsis and Septic Shock: A Retrospective Before-After Study. Chest. 2017 Jun;151(6):1229-1238. doi: 10.1016/j.chest.2016.11.036. Epub 2016 Dec 6. — View Citation

Shankar-Hari M, Phillips GS, Levy ML, Seymour CW, Liu VX, Deutschman CS, Angus DC, Rubenfeld GD, Singer M; Sepsis Definitions Task Force. Developing a New Definition and Assessing New Clinical Criteria for Septic Shock: For the Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). JAMA. 2016 Feb 23;315(8):775-87. doi: 10.1001/jama.2016.0289. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Hospital Mortality	Death before hospital discharge	90 days
Secondary	60-day mortality	Death before day 60 post-randomization	60 days
Secondary	28-day mortality	Death before day 28 post-randomization	28 days
Secondary	Procalcitonin (PCT) clearance .	Will be defined as baseline PCT minus PCT at 96 hours post-randomization, divided by the initial PCT and multiplied by 100	4 days
Secondary	Delta Sequential Organ Failure Assessment (SOFA) score	Will be defined as the initial Sequential Organ Failure Assessment (SOFA) score minus the day 4 post-randomization SOFA score.; The SOFA score is the sum of 6 subscores that range from 0 to 4 and provide an assessment of the function of the following organs/systems: Respiratory, Nervous, Cardiovascular, Liver, Coagulation, and Renal. An increasing SOFA subscore (from 0 to 1, 2, 3, and 4) indicates worsening function culminating into failure of the corresponding organ/system. The maximum possible total SOFA score equals to 24. A SOFA score of 15 or more has been previously associated with a mortality rate of more than 90%.	4 days
Secondary	Neurologic failure-free days (defined as daily follow-up Glasgow Coma Score >9) within the first 28 days of follow-up	Will be defined as the number of days with a (daily) follow-up Glasgow Coma Score >9 within the first 28 days of follow-up	28 days
Secondary	Intensive Care Unit (ICU) mortality	Death before ICU discharge	90 days
Secondary	ICU free days to day 28.	Will be defined as the number of days alive and out of the ICU until follow-up day 28	28 days
Secondary	ICU length of stay	Duration of the need for intensive care after randomization	90 days
Secondary	Hospital length of stay	Duration of hospitalization after randomization	90 days