Drugs / L-citrulline
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L-citrulline

Other / unclassified

Developed for
sickle cell disease · asthma · atrioventricular septal defect · bronchopulmonary dysplasia · pulmonary hypertension · ventricular septal defect · acute lung injury · atrial septal defect, ostium primum type
+23 more · Becker muscular dystrophy · chronic intestinal failure · chronic obstructive pulmonary disease · congenital heart disease · diastolic heart failure · Duchenne muscular dystrophy · Eisenmenger syndrome · erectile dysfunction · hypertensive disorder · idiopathic pulmonary arterial hypertension · intermittent vascular claudication · MELAS syndrome · peripheral arterial disease · postpoliomyelitis syndrome · preeclampsia · protein-energy malnutrition · toxemia of pregnancy · ureterolithiasis · urolithiasis · acute respiratory failure · coronary artery disorder · infectious disease with sepsis · vascular disorder
Investigated by
Asklepion Pharmaceuticals, LLC · Vanderbilt University · Nantes University Hospital · National Heart, Lung, and Blood Institute (NHLBI) · Angiogenix · Beni-Suef University
+23 more · Suvankar Majumdar · University Hospital, Basel, Switzerland · University of Colorado, Denver · University of Mississippi Medical Center · University of Utah · Baylor College of Medicine · Columbia University · Dirk Fischer · Duke University · Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) · Independent Medical Alliance · Masih Daneshvari Hospital · National Institute of Neurological Disorders and Stroke (NINDS) · National Institutes of Health (NIH) · National Jewish Health · Open Source Medicine Foundation OU · The University of Texas Medical Branch, Galveston · United States Department of Defense · University Hospital, Grenoble · University of Oklahoma · University of Pittsburgh · University of South Florida · VA Office of Research and Development

Trials 33

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 02 trials
Phase 0 NCT03542812 Jul 2019 → Aug 2022 bronchopulmonary dysplasia, pulmonary hypertension, pulmonary immaturity University of Utah Terminated No outcome recorded Stop: Enrollment
Phase 0 NCT01683981 Aug 2012 → Aug 2013 Eisenmenger syndrome, idiopathic pulmonary arterial hypertension Masih Daneshvari Hospital Unknown No outcome recorded
Phase 111 trials
Phase 1 NCT05722860 Jan → Nov 2024 — University of Oklahoma Completed No outcome recorded
Phase 1 NCT04979793 Jul 2021 → Dec 2025 toxemia of pregnancy The University of Texas Medical Branch, Galveston Terminated No outcome recorded
Phase 1 NCT06312748 May 2021 → Sep 2028 expected diastolic heart failure VA Office of Research and Development Recruiting No outcome recorded
Phase 1 NCT03952234 Apr 2021 → Apr 2024 MELAS syndrome Baylor College of Medicine Completed No outcome recorded
Phase 1 NCT02697240 Feb 2016 → Apr 2017 sickle cell disease University of Mississippi Medical Center Completed No outcome recorded
Phase 1 NCT02659644 Dec 2015 → Dec 2017 sickle cell disease University of Mississippi Medical Center Withdrawn No outcome recorded
Phase 1 NCT02314689 Jan → Dec 2015 sickle cell disease Suvankar Majumdar Completed No outcome recorded
Phase 1 NCT00743210 Jan 2010 → Jun 2013 hypertensive disorder University of Pittsburgh Completed No outcome recorded
Phase 1 NCT00756080 Sep 2008 → Jan 2009 — Nantes University Hospital Completed No outcome recorded
Phase 1 NCT00742534 Aug 2008 → Aug 2009 bronchopulmonary dysplasia Vanderbilt University Withdrawn No outcome recorded
Phase 1/22 trials
Phase 1/2 NCT01120964 Sep 2010 → Apr 2012 atrial septal defect, atrioventricular septal defect, ventricular septal defect Asklepion Pharmaceuticals, LLC Completed No outcome recorded
Phase 1/2 NCT00201214 Dec 2003 → Jan 2006 congenital heart disease Vanderbilt University Completed No outcome recorded
Phase 28 trials
Phase 2 NCT07617909 May → Oct 2026 expected ureterolithiasis, urolithiasis Beni-Suef University Recruiting No outcome recorded
Phase 2 NCT06967428 Sep 2025 → Jan 2026 overdue — Independent Medical Alliance Not yet recruiting No outcome recorded
Phase 2 NCT06635902 Dec 2024 → Jun 2028 expected sickle cell disease Suvankar Majumdar Recruiting No outcome recorded
Phase 2 NCT05259904 Mar 2023 → Oct 2028 expected asthma University of Colorado, Denver Recruiting No outcome recorded
Phase 2 NCT03885245 Oct 2021 → Dec 2025 overdue asthma, obesity disorder University of Colorado, Denver Recruiting No outcome recorded
Phase 2 NCT02018731 Jun 2013 → Sep 2014 Becker muscular dystrophy University Hospital, Basel, Switzerland Completed No outcome recorded
Phase 2 NCT00351286 Mar 2006 → ? intermittent vascular claudication, peripheral arterial disease Angiogenix Unknown No outcome recorded
Phase 2 NCT00223730 Oct 2001 → Dec 2007 cancer Vanderbilt University Completed No outcome recorded
Phase 2/31 trial · 1 missed
Phase 2/3 NCT02801695 Feb 2017 → Dec 2020 preeclampsia Nantes University Hospital Completed Missed primary
Phase 38 trials · 3 missed
Phase 3 NCT06989567 Jul 2025 → Jun 2027 expected sickle cell disease Asklepion Pharmaceuticals, LLC Not yet recruiting No outcome recorded
Phase 3 NCT06212765 Jan 2024 → Jan 2026 overdue chronic obstructive pulmonary disease, protein-energy malnutrition University Hospital, Grenoble Not yet recruiting No outcome recorded
Phase 3 NCT05253209 Jun 2022 → May 2024 atrial septal defect, ostium primum type, atrioventricular septal defect, ventricular septal defect Asklepion Pharmaceuticals, LLC Terminated No outcome recorded
Phase 3 NCT02891837 Aug 2016 → Jun 2019 acute lung injury Asklepion Pharmaceuticals, LLC Completed Missed primary
Phase 3 NCT02801071 Jun 2016 → Aug 2017 postpoliomyelitis syndrome Dirk Fischer Completed No outcome recorded
Phase 3 NCT01995032 Oct 2013 → Oct 2015 Duchenne muscular dystrophy University Hospital, Basel, Switzerland Completed Missed primary
Phase 3 NCT01386034 Jul 2012 → Jul 2015 chronic intestinal failure Nantes University Hospital Completed Missed primary
Phase 3 NCT00335244 May 2006 → Dec 2009 congenital heart defects, multiple types, pulmonary hypertension Asklepion Pharmaceuticals, LLC Completed No outcome recorded
Phase 41 trial
Phase 4 NCT07642505 Jun → Nov 2026 expected erectile dysfunction Beni-Suef University Recruiting No outcome recorded
Comparator or background therapy6 trials
Phase 0 NCT04073381 Background Oct 2018 → Jul 2020 — University of Texas at Austin Completed No outcome recorded
Phase 0 NCT01917123 Comparator Aug 2013 → Mar 2014 coronary artery disorder Masih Daneshvari Hospital Unknown No outcome recorded
Phase 1/2 NCT04852172 Comparator Apr 2021 → Feb 2024 sickle cell disease Asklepion Pharmaceuticals, LLC Terminated No outcome recorded
Phase 2 NCT04570384 Comparator Oct 2020 → Aug 2021 acute respiratory failure Asklepion Pharmaceuticals, LLC Completed No outcome recorded
Phase 2 NCT01474863 Comparator Aug 2012 → Mar 2016 acute lung injury, infectious disease with sepsis Vanderbilt University Completed No outcome recorded

Evidence & citations 7 cited values

Every value below carries the sentence it was read from. 41 sources stand behind the page.

FieldValueCited text
Known as L-citrulline “This daily intervention over 3 months combines 4 g L-serine, 14 g L-glutamine, 3 g L-arginine, 2.5 g N-acetylcysteine, 5.75 g L-citrulline, 1 g vitamin C, and 5 g creatine to...” NCT06967428 ↗
30

“When administered orally, the NO-L-arginine precursor, L-citrulline, increases NO production in children and adults” PMID 36316628 ↗ Oct 2022

“7 weeks of treatment with 15 g/day of orally administered (powder form mixed with water) L-citrulline” NCT03885245 ↗

“The nutrition supplement cocktail will include whey protein, creatine monohydrate, and L-citrulline.” NCT04073381 ↗

“Initial intravenous bolus of 20mg/kg (to a maximum of 1500mg) L-citrulline over 10 minutes.” NCT01474863 ↗

NCT03952234 ↗

NCT06989567 ↗

NCT06212765 ↗

NCT00343954 ↗

NCT02891837 ↗

NCT07642505 ↗

Show 20 more sources

Known as citrulline “This is a classic dose escalation using initial doses of 10 mg/kg of intravenous citrulline and advancing the dose by 10 mg/kg every 3 patients for a target peak plasma...” NCT00742534 ↗
8

“Citrulline is a drug that is known to increase nitric oxide.” NCT02659644 ↗

NCT00201214 ↗

NCT00756080 ↗

NCT02314689 ↗

NCT02801695 ↗

NCT00223730 ↗

NCT01386034 ↗

NCT02697240 ↗

Known as Citrupress “Intravenous L-Citrulline (Citrupress®) Versus Placebo” NCT01120964 ↗
Known as L-Citrulline Malate ClinicalTrials.gov intervention name — accepted as the source's own label NCT01683981 ↗
1

NCT01917123 ↗

Known as Turnobi “Intravenous L-citrulline (Turnobi) administration will safely restore the homeostasis of nitric oxide synthase by increasing both plasma citrulline and arginine levels.” NCT04570384 ↗
1

“The applicant is developing intravenous L-citrulline (Turnobi™) for treatment of sickle cell disease (SCD).” NCT04852172 ↗

Modality Other / unclassified “L-citrulline is a non-protein amino acid that has a direct effect on muscle protein synthesis.” NCT06212765 ↗
Route Intravenous “intravenously administered citrulline” PMID 17662768 ↗ Aug 2007