Clinical trial NCT04440085: RaGuS Trial by Postoperative Patients
Official title: RANDOMIZED CASE-CONTROLLED TRIAL ASSESSING MIDODRINE (GUTRON®) IN POSTOPERATIVE VASOPLEGIC PATIENTS
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE4
Conditions: Vasoplegic Syndrome
Sirs Due to Noninfectious Process Without Organ Dysfunction
Orthostatic Hypotension
Keywords: Midodrine
Vasoplegic syndrome
Noradrenaline
SIRS
Lead sponsor: Bürgerspital Solothurn
Sponsor class: OTHER
First posted: 2020-06-19
Enrollment: 50
Sex: ALL
Minimum age (years): 18
Maximum age (years): 99
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: SEQUENTIAL
Intervention model description: Randomized, double-blind, single-center, placebo-controlled study
Primary purpose: TREATMENT

Brief summary: Vasoplegic syndrome is characterized clinically by reduced systemic vascular resistance and normal or increased cardiac output. It is principally observed in cardiovascular and orthopedic interventions and is characterized by a systemic inflammatory response with the inability of the vascular endothelial muscles to contract and a resistance to the action of vasoactive drugs. This event extends the length of stay in the critical care area due to the need of vasoactive drugs.

The investigators aim to assess the standardized application of midodrine in postoperative patients without sepsis and need of vasoactive drugs in order to reduce the length of stay in critical care area and for extension in hospital.

Detailed description: Midodrine is an alpha 1 receptor agonist used usually in cases of hypotension helping to increase blood pressure. The main indication is orthostatic hypotension but there are other clinical conditions where this medicament is often used like hypotension by dialysis, hepatorenal syndrome and after carotid artery stenting.

Vasoplegic syndrome coul be interpreted as a variant of orthostatic hypotension that happens usually after surgical interventions. It produces a loss of systemic vascular resistance due to inflammatory reaction without any signs of infection.

The investigators aim to conduct a randomized, double-blind, single-center, placebo-controlled study of midodrine in patients who present postoperative vasoplegia with no active signs of sepsis but need of vasoactive drugs (Noradrenalin).

Eligibility criteria: Inclusion Criteria:

* Over 18 years of age
* Need of vasoactive drugs after three hours from arrival and adequate volume recovery.

Exclusion Criteria:

* Signs of infection (anamnesis or pro-calcitonin \> 0.2 with leukocytosis, CRP and/or fever)
* Serum lactate \> 2mmol/l
* Mechanical ventilation
* Therapeutic restrictions or comfort measures at arrival
* "de novo" or acute on chronic heart failure (Reduction of known ejection fraction for more than 20 percent, signs of acute lung edema)
* Pregnant
* Patients with digoxin treatment or history of glaucoma.
* History of midodrine allergy, pheochromocytoma, thyrotoxicosis, tachyarrhythmias or ventricular fibrillation.

Primary outcomes:
measure: Time
timeFrame: aproximately 2 days
Secondary outcomes:
measure: Length of stay
timeFrame: aproximately 7 days
measure: Vasopresors
timeFrame: aproximately 2 days
measure: Fluid balance
timeFrame: aproximately 2 days
Other outcomes:
Locations:
Study officials:
affiliation: Bürgerspital Solothurn
name: Marcos Delgado, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Tchen S, Sullivan JB. Clinical utility of midodrine and methylene blue as catecholamine-sparing agents in intensive care unit patients with shock. J Crit Care. 2020 Jun;57:148-156. doi: 10.1016/j.jcrc.2020.02.011. Epub 2020 Feb 19.
citation: Shaefi S, Mittel A, Klick J, Evans A, Ivascu NS, Gutsche J, Augoustides JGT. Vasoplegia After Cardiovascular Procedures-Pathophysiology and Targeted Therapy. J Cardiothorac Vasc Anesth. 2018 Apr;32(2):1013-1022. doi: 10.1053/j.jvca.2017.10.032. Epub 2017 Oct 27.
citation: Jans O, Mehlsen J, Kjaersgaard-Andersen P, Husted H, Solgaard S, Josiassen J, Lunn TH, Kehlet H. Oral Midodrine Hydrochloride for Prevention of Orthostatic Hypotension during Early Mobilization after Hip Arthroplasty: A Randomized, Double-blind, Placebo-controlled Trial. Anesthesiology. 2015 Dec;123(6):1292-300. doi: 10.1097/ALN.0000000000000890.
citation: Smits M, Lin S, Rahme J, Bailey M, Bellomo R, Hardidge A. Blood Pressure and Early Mobilization After Total Hip and Knee Replacements: A Pilot Study on the Impact of Midodrine Hydrochloride. JB JS Open Access. 2019 May 14;4(2):e0048. doi: 10.2106/JBJS.OA.18.00048. eCollection 2019 Apr-Jun.
citation: Levine AR, Meyer MJ, Bittner EA, Berg S, Kalman R, Stanislaus AB, Ryan C, Ball SA, Eikermann M. Oral midodrine treatment accelerates the liberation of intensive care unit patients from intravenous vasopressor infusions. J Crit Care. 2013 Oct;28(5):756-62. doi: 10.1016/j.jcrc.2013.05.021. Epub 2013 Jul 8.
citation: Cardenas-Garcia JL, Whitson MR, Healy K, Koenig S, Narasimhan M, Mayo P: Safety of oral midrodrine as a mehtod of weaning from intravenous vasoactive medication in the medical intensive care unit. Chest 2014, 146(4):224A.
citation: Rizvi MS, Nei AM, Gajic O, Mara KC, Barreto EF. Continuation of Newly Initiated Midodrine Therapy After Intensive Care and Hospital Discharge: A Single-Center Retrospective Study. Crit Care Med. 2019 Aug;47(8):e648-e653. doi: 10.1097/CCM.0000000000003814.
citation: Whitson MR, Mo E, Nabi T, Healy L, Koenig S, Narasimhan M, Mayo PH. Feasibility, Utility, and Safety of Midodrine During Recovery Phase From Septic Shock. Chest. 2016 Jun;149(6):1380-3. doi: 10.1016/j.chest.2016.02.657. Epub 2016 Mar 4.
citation: Anstey MH, Wibrow B, Thevathasan T, Roberts B, Chhangani K, Ng PY, Levine A, DiBiasio A, Sarge T, Eikermann M. Midodrine as adjunctive support for treatment of refractory hypotension in the intensive care unit: a multicenter, randomized, placebo controlled trial (the MIDAS trial). BMC Anesthesiol. 2017 Mar 21;17(1):47. doi: 10.1186/s12871-017-0339-x.