Efficacy of Para-Tyrosine Supplementation on the Survival and Clinical Outcome in Patients With Sepsis

NCT03278730 | Suspended Phase 2 DMC

• 1 other identifier: PTE-2015-02
• Study Type: interventional
• Target: 296
• Locations: 1 country
• Sites: 2

Brief Summary

Meta-and ortho-Tyrosine are known markers of oxidative stress, while the physiological isomer, para-Tyrosine is suggested the antagonize the effects of meta- and ortho-Tyrosine. The changes in the serum levels of meta- and ortho-Tyrosine have been found to be paralel to that of the common sepsis markers. The hypothesis of the study is, that supplementation of para-Tyrosine (p-Tyr) in the early phase of sepsis may diminish some specific inflammatory procedures and thus may have a favourable impact on the disease progress, and consequently on the mortality.

Conditions

Sepsis

Keywords

sepsis; para-Tyrosine; ortho-Tyrosine; meta-Tyrosine

Outcome Measures

Primary Outcomes (1)

• Mortality

  Comparison of mortality starting from randomization and start of treatment (which should be on the same day) during the period of ICU stay between the active treatment group and placebo group.

  30 days

Secondary Outcomes (6)

• Effect of para-Tyrosine supplementation on the clinical outcome of sepsis

  30 days

• Long term effects of para-Tyrosine supplementation on survival

  28 days

• Reduction in the time of ICU stay

  30 days

• Overall mortality

  60 days

• Hospitalization time

  60 days

Other Outcomes (3)

• Effect of supplementation on the maintanance of the serum level of para-Tyrosine

  30 days

• Assessment of pharmacodynamics

  10 days

• Correlation of o-Tyr and m-Tyr serum levels and other parameters of inflammation

  10 days

Study Arms (2)

Para-Tyrosine intervention

ACTIVE COMPARATOR

The patients will receive the study drug during their stay at the ICU but for a maximum of 7 days. Study drug will be dispensed by a nominated member of the study team and administered to the patients by the ICU staff via nasogastric tube in form of oral suspension. The content of the hard capsules will be dissolved in 20 ml of tap water before the dosing. Drug name: Tyrosine. Strength 500 mg. Oral dose form: hard capsule. Number of Dispensed at frequency of 3x2 g daily. Duration of administration: 4 to 7 days.

Drug: Para-Tyrosine supplementation

Placebo

PLACEBO COMPARATOR

The patients will receive the study drug during their stay at the ICU but for a maximum of 7 days. Study drug will be dispensed by a nominated member of the study team and administered to the patients by the ICU staff via nasogastric tube in form of oral suspension. The content of the hard capsules will be dissolved in 20 ml of tap water before the dosing. Drug name: Placebo.. Strength N/A. Oral dose form: capsule matching to Tyrosine capsule. Number of Dispnsed an frequency 3x2 g daily. Duration of administration: 4 to 7 days.

Drug: Placebo solution

Interventions

Para-Tyrosine supplementation DRUG

Patients will recieve the study drug during their stay at the ICU, but for a maximum of 7 days. The study drug is 3x2 gramms of para-Tyrosine, which will be dispensed and administered in a form of oral suspension via a nasogastric tube.

Para-Tyrosine intervention

Placebo solution DRUG

Patients will recieveplacebo during their stay at the ICU, but for a maximum of 7 days. The study drug is 3x2 gramms of placebo, which will be dispensed and administered in a form of oral suspension via a nasogastric tube.

Placebo

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Are able to provide written informed consent (either the patient or the person entitled by legislation to consent on behalf of the patient)
• Male and female patients ≥ 18 years
• Have a current primary diagnosis of sepsis based on the the third international consensus definitions for sepsis and septic shock (Sepsis-3)Willing and able to comply with all aspects of the protocol
• Females of childbearing potential must have negtive serum pregnancy test az screening. (All females will be considered to be of childbearing potential unless they are postmenopausal i.e. amenorrheic for at least 12 consecutive months, in the appropriate age group and without other known or suspected cause or have been sterilized surgically i.e. bilateral tubal ligation, total hysterectomy, or bilateral oophorectomy, all with surgery at least 1 month before dosing)

You may not qualify if:

• Subjects must not have any of the following criteria to be eligible for the study:
• Females who are pregnant (positive β-hCG test at screening) or breastfeeding
• chronic use of steroids or immunosuppressive drugs within the past 3 months
• other therapy influencing the immune system within the past 3 months (radiotherapy, chemotherapy etc.)
• malignant hematologic disease
• jejunal tube feeding
• any other significant illness in the medical history ongoing in the preceeding 1 month, which may have an influence on the survival and clinical outcome of the patients (e.g severe chronic heart failure NYHA III-IV., AMI, stroke, major surgery, COPD, renal failure, hepatic failure, hepatic cirrhosis etc.)
• Life expectancy less, than 1 months according to the judgement of the Investigator (even without significant illness, due to age or general status of the patient)
• Hypersensitivity to any of the excipients of the study product
• Known to be human immunodeficiency virus (HIV) positive
• Active viral hepatitis (B or C) as demonstrated by positive serology
• History of drug or alcohol dependency or abuse within approximately the last 2 years

Sponsors & Collaborators

• University of Pecs: lead

Study Sites (2)

2nd Department of Medicine and Nephrological Center

Pécs, Baranya, 7624, Hungary

Location

Department of Anaesthesiology and Intensive Care

Pécs, Baranya, 7624, Hungary

Location

Related Publications (25)

• Brasnyo P, Molnar GA, Mohas M, Marko L, Laczy B, Cseh J, Mikolas E, Szijarto IA, Merei A, Halmai R, Meszaros LG, Sumegi B, Wittmann I. Resveratrol improves insulin sensitivity, reduces oxidative stress and activates the Akt pathway in type 2 diabetic patients. Br J Nutr. 2011 Aug;106(3):383-9. doi: 10.1017/S0007114511000316. Epub 2011 Mar 9.

  PMID: 21385509 BACKGROUND

• Bernard GR, Wheeler AP, Russell JA, Schein R, Summer WR, Steinberg KP, Fulkerson WJ, Wright PE, Christman BW, Dupont WD, Higgins SB, Swindell BB. The effects of ibuprofen on the physiology and survival of patients with sepsis. The Ibuprofen in Sepsis Study Group. N Engl J Med. 1997 Mar 27;336(13):912-8. doi: 10.1056/NEJM199703273361303.

  PMID: 9070471 BACKGROUND

• Bone RC, Balk RA, Cerra FB, Dellinger RP, Fein AM, Knaus WA, Schein RM, Sibbald WJ. Definitions for sepsis and organ failure and guidelines for the use of innovative therapies in sepsis. The ACCP/SCCM Consensus Conference Committee. American College of Chest Physicians/Society of Critical Care Medicine. Chest. 1992 Jun;101(6):1644-55. doi: 10.1378/chest.101.6.1644.

  PMID: 1303622 BACKGROUND

• Dandona P, Mohanty P, Hamouda W, Ghanim H, Aljada A, Garg R, Kumar V. Inhibitory effect of a two day fast on reactive oxygen species (ROS) generation by leucocytes and plasma ortho-tyrosine and meta-tyrosine concentrations. J Clin Endocrinol Metab. 2001 Jun;86(6):2899-902. doi: 10.1210/jcem.86.6.7745.

  PMID: 11397907 BACKGROUND

• Dellinger RP, Levy MM, Rhodes A, Annane D, Gerlach H, Opal SM, Sevransky JE, Sprung CL, Douglas IS, Jaeschke R, Osborn TM, Nunnally ME, Townsend SR, Reinhart K, Kleinpell RM, Angus DC, Deutschman CS, Machado FR, Rubenfeld GD, Webb S, Beale RJ, Vincent JL, Moreno R; Surviving Sepsis Campaign Guidelines Committee including The Pediatric Subgroup. Surviving Sepsis Campaign: international guidelines for management of severe sepsis and septic shock, 2012. Intensive Care Med. 2013 Feb;39(2):165-228. doi: 10.1007/s00134-012-2769-8. Epub 2013 Jan 30.

  PMID: 23361625 BACKGROUND

• Druml W, Heinzel G, Kleinberger G. Amino acid kinetics in patients with sepsis. Am J Clin Nutr. 2001 May;73(5):908-13. doi: 10.1093/ajcn/73.5.908.

  PMID: 11333844 BACKGROUND

• Hirose T, Shimizu K, Ogura H, Tasaki O, Hamasaki T, Yamano S, Ohnishi M, Kuwagata Y, Shimazu T. Altered balance of the aminogram in patients with sepsis - the relation to mortality. Clin Nutr. 2014 Feb;33(1):179-82. doi: 10.1016/j.clnu.2013.11.017. Epub 2013 Dec 14.

  PMID: 24377412 BACKGROUND

• Jensen GL, Miller RH, Talabiska DG, Fish J, Gianferante L. A double-blind, prospective, randomized study of glutamine-enriched compared with standard peptide-based feeding in critically ill patients. Am J Clin Nutr. 1996 Oct;64(4):615-21. doi: 10.1093/ajcn/64.4.615.

  PMID: 8839508 BACKGROUND

• Jorres RA, Holz O, Zachgo W, Timm P, Koschyk S, Muller B, Grimminger F, Seeger W, Kelly FJ, Dunster C, Frischer T, Lubec G, Waschewski M, Niendorf A, Magnussen H. The effect of repeated ozone exposures on inflammatory markers in bronchoalveolar lavage fluid and mucosal biopsies. Am J Respir Crit Care Med. 2000 Jun;161(6):1855-61. doi: 10.1164/ajrccm.161.6.9908102.

  PMID: 10852757 BACKGROUND

• Kun S, Mikolas E, Molnar GA, Selley E, Laczy B, Csiky B, Kovacs T, Wittmann I. Association of plasma ortho-tyrosine/para-tyrosine ratio with responsiveness of erythropoiesis-stimulating agent in dialyzed patients. Redox Rep. 2014 Sep;19(5):190-8. doi: 10.1179/1351000214Y.0000000090. Epub 2014 Apr 3.

  PMID: 24693974 BACKGROUND

• Kun S, Molnar GA, Selley E, Szelig L, Bogar L, Csontos C, Miseta A, Wittmann I. Insulin Therapy of Nondiabetic Septic Patients Is Predicted by para-Tyrosine/Phenylalanine Ratio and by Hydroxyl Radical-Derived Products of Phenylalanine. Oxid Med Cell Longev. 2015;2015:839748. doi: 10.1155/2015/839748. Epub 2015 Oct 20.

  PMID: 26576228 BACKGROUND

• Singer M, Deutschman CS, Seymour CW, Shankar-Hari M, Annane D, Bauer M, Bellomo R, Bernard GR, Chiche JD, Coopersmith CM, Hotchkiss RS, Levy MM, Marshall JC, Martin GS, Opal SM, Rubenfeld GD, van der Poll T, Vincent JL, Angus DC. The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). JAMA. 2016 Feb 23;315(8):801-10. doi: 10.1001/jama.2016.0287.

  PMID: 26903338 BACKGROUND

• Liebau F, Sundstrom M, van Loon LJ, Wernerman J, Rooyackers O. Short-term amino acid infusion improves protein balance in critically ill patients. Crit Care. 2015 Mar 12;19(1):106. doi: 10.1186/s13054-015-0844-6.

  PMID: 25882298 BACKGROUND

• Lubec B, Hayn M, Denk W, Bauer G. Brain lipid peroxidation and hydroxy radical attack following the intravenous infusion of hydrogen peroxide in an infant. Free Radic Biol Med. 1996;21(2):219-23. doi: 10.1016/0891-5849(96)00018-4.

  PMID: 8818637 BACKGROUND

• Mikolas E, Kun S, Laczy B, Molnar GA, Selley E, Koszegi T, Wittmann I. Incorporation of ortho- and meta-tyrosine into cellular proteins leads to erythropoietin-resistance in an erythroid cell line. Kidney Blood Press Res. 2013;38(2-3):217-25. doi: 10.1159/000355770. Epub 2014 Apr 9.

  PMID: 24751667 BACKGROUND

• Molnar GA, Nemes V, Biro Z, Ludany A, Wagner Z, Wittmann I. Accumulation of the hydroxyl free radical markers meta-, ortho-tyrosine and DOPA in cataractous lenses is accompanied by a lower protein and phenylalanine content of the water-soluble phase. Free Radic Res. 2005 Dec;39(12):1359-66. doi: 10.1080/10715760500307107.

  PMID: 16298866 BACKGROUND

• Molnar GA, Wagner Z, Marko L, Ko Szegi T, Mohas M, Kocsis B, Matus Z, Wagner L, Tamasko M, Mazak I, Laczy B, Nagy J, Wittmann I. Urinary ortho-tyrosine excretion in diabetes mellitus and renal failure: evidence for hydroxyl radical production. Kidney Int. 2005 Nov;68(5):2281-7. doi: 10.1111/j.1523-1755.2005.00687.x.

  PMID: 16221230 BACKGROUND

• Szijarto IA, Molnar GA, Mikolas E, Fisi V, Cseh J, Laczy B, Kovacs T, Boddi K, Takatsy A, Gollasch M, Koller A, Wittmann I. Elevated vascular level of ortho-tyrosine contributes to the impairment of insulin-induced arterial relaxation. Horm Metab Res. 2014 Oct;46(11):749-52. doi: 10.1055/s-0034-1387701. Epub 2014 Sep 10.

  PMID: 25208272 BACKGROUND

• Molnar GA, Mikolas EZ, Szijarto IA, Kun S, Selley E, Wittmann I. Tyrosine isomers and hormonal signaling: A possible role for the hydroxyl free radical in insulin resistance. World J Diabetes. 2015 Apr 15;6(3):500-7. doi: 10.4239/wjd.v6.i3.500.

  PMID: 25897359 BACKGROUND

• Molnar GA, Kun S, Selley E, Kertesz M, Szelig L, Csontos C, Boddi K, Bogar L, Miseta A, Wittmann I. Role of Tyrosine Isomers in Acute and Chronic Diseases Leading to Oxidative Stress - A Review. Curr Med Chem. 2016;23(7):667-85. doi: 10.2174/0929867323666160119094516.

  PMID: 26785996 BACKGROUND

• Pandharipande PP, Morandi A, Adams JR, Girard TD, Thompson JL, Shintani AK, Ely EW. Plasma tryptophan and tyrosine levels are independent risk factors for delirium in critically ill patients. Intensive Care Med. 2009 Nov;35(11):1886-92. doi: 10.1007/s00134-009-1573-6. Epub 2009 Jul 9.

  PMID: 19588122 BACKGROUND

• Ruggiero RA, Bruzzo J, Chiarella P, di Gianni P, Isturiz MA, Linskens S, Speziale N, Meiss RP, Bustuoabad OD, Pasqualini CD. Tyrosine isomers mediate the classical phenomenon of concomitant tumor resistance. Cancer Res. 2011 Nov 15;71(22):7113-24. doi: 10.1158/0008-5472.CAN-11-0581.

  PMID: 22084446 BACKGROUND

• Ruggiero RA, Bruzzo J, Chiarella P, Bustuoabad OD, Meiss RP, Pasqualini CD. Concomitant tumor resistance: the role of tyrosine isomers in the mechanisms of metastases control. Cancer Res. 2012 Mar 1;72(5):1043-50. doi: 10.1158/0008-5472.CAN-11-2964. Epub 2012 Feb 7.

  PMID: 22315349 BACKGROUND

• Shaw JH, Wildbore M, Wolfe RR. Whole body protein kinetics in severely septic patients. The response to glucose infusion and total parenteral nutrition. Ann Surg. 1987 Mar;205(3):288-94. doi: 10.1097/00000658-198703000-00012.

  PMID: 3103555 BACKGROUND

• Selley E, Kun S, Kurthy M, Kovacs T, Wittmann I, Molnar GA. Para-Tyrosine Supplementation Improves Insulin- and Liraglutide- Induced Vasorelaxation in Cholesterol-Fed Rats. Protein Pept Lett. 2015;22(8):736-42. doi: 10.2174/0929866522666150610093039.

  PMID: 26202368 BACKGROUND

MeSH Terms

Conditions

Sepsis

Condition Hierarchy (Ancestors)

Infections; Systemic Inflammatory Response Syndrome; Inflammation; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Study Officials

• István Wittmann, MD,PhD,DSc

  University of Pecs

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: RANDOMIZED
• Masking: QUADRUPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Model Details: The objective is to evaluate, whether p-Tyr supplementation reduces the ICU mortality of the patients with sepsis comparing to placebo group

Study Record Dates

• First Submitted: September 1, 2017
• First Posted: September 12, 2017
• Study Start (Estimated): January 1, 2027
• Primary Completion (Estimated): January 1, 2027
• Study Completion (Estimated): February 28, 2027
• Last Updated: March 30, 2025

Record last verified: 2025-03

Data Sharing

• IPD Sharing: Will not share

Locations

HU (2)