NCT01195818

Brief Summary

The prevalence of Sickle Cell Associated Nephropathy (SCAN) is increasing and is a growing concern. Microalbuminuria is detected in the early onset of SCAN. Noteworthy, as in diabetic nephropathy, hyperfiltration seems to be a frequent finding, with, in our series, an overall incidence of 57 % and suggests a pathological links between glomerular hyperpressure and glomerulosclerosis which occurs several years after. Nitric oxide (NO) deficiency and the renin angiotensin system (RAS) are likely to be involved in the glomerular hyperpressure leading to hyperfiltration. Renin angiotensin antagonists are currently given for NEPHROPROTECTION in numerous nephropathy including SCAN despite few available reports. The percentage of decrease of albuminuria or the percentage of responders (ie patient normalizing albuminuria) has never been reported to our knowledge in SCAN patients at the time of hyperfiltration. The focus of our study is therefore to 1) Quantify albuminuria reduction after 6 months RAS treatment (primary end point); 2) Quantify glomerular filtration rate (GFR) reduction after 6 months of RAS treatment, and to test the hypothesis of a beneficial effect of RAS inhibitors on several biomarkers assessing hemolysis, NO inhibition and the endothelial damages (secondary end points). The ultimate aim of our study is to identify relevant (new) biomarkers associated to hyperfiltration and/or albuminuria decrease (/normalization).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
53

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2010

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2010

Completed
2 days until next milestone

First Submitted

Initial submission to the registry

September 3, 2010

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 6, 2010

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2014

Completed
Last Updated

June 18, 2015

Status Verified

June 1, 2015

Enrollment Period

4 years

First QC Date

September 3, 2010

Last Update Submit

June 17, 2015

Conditions

Keywords

Albuminuria, hyperfiltration, RAS inhibitors, ADMA

Outcome Measures

Primary Outcomes (1)

  • Comparison of albuminuria/ urinary creatinin ratio before and after a 6 months RAS inhibitor treatment period

    6 months RAS inhibitor treatment period

Secondary Outcomes (2)

  • Comparison of albuminuria/ urinary creatinin ratio under RAS inhibitor treatment and after 1 month wash-out period

    1 month wash-out period

  • Comparison of glomerular Filtration Rate (51CR EDTA clearance) before and after a 6 months RAS inhibitor treatment period

    6 months RAS inhibitor treatment period

Study Arms (1)

RAS Inhibitors

EXPERIMENTAL

RAS Inhibitors

Drug: RAS Inhibitors

Interventions

Clinical trial testing the effect of RAS inhibitors (Ramipril or Irbesartan)on sickle cell disease patients wit hyperfiltration and albuminuria for a six month period followed by one month wash out period. Drug will be given after the first GFR measurement on a daily basis with a full dose given after the first month.

RAS Inhibitors

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Homozygous sickle cell disease
  • \> 18 years
  • Patient with social insurance
  • Albuminuria/ urinary creatinin \> 10 mg/mmol creatinin (at 2 different times) and MDRD \> 140 ml/min/1.73m2.
  • Written inform consent

You may not qualify if:

  • Hemoglobin SC or S-betathalassemia disease
  • Patient currently treated with: lithium, aspirin, antihypertensive drugs, non steroid-antiinflammatory drugs.
  • Pregnancy
  • Woman without contraception
  • Transfusion within the last 3 months
  • Intolerance to RAS inhibitors
  • Treatment with RAS in the last month
  • Patient with Congenital galactosemia or a malabsorption of glucose or lactase deficiency
  • Treatment with hydroxyurea began or changed in the last 3 months
  • Infection with HIV or C hepatitis
  • Angio-edema

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre de la Drépanocytose, Service de Médecine Interne. Hôpital Tenon, 4 Rue de la Chine

Paris, Paris, 75020, France

Location

Related Publications (24)

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    PMID: 9745872BACKGROUND
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    PMID: 16837635BACKGROUND
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    PMID: 1542341BACKGROUND
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    PMID: 6182335BACKGROUND
  • Serjeant GR, Higgs DR, Hambleton IR. Elderly survivors with homozygous sickle cell disease. N Engl J Med. 2007 Feb 8;356(6):642-3. doi: 10.1056/NEJMc066547. No abstract available.

    PMID: 17287491BACKGROUND
  • Manci EA, Culberson DE, Yang YM, Gardner TM, Powell R, Haynes J Jr, Shah AK, Mankad VN; Investigators of the Cooperative Study of Sickle Cell Disease. Causes of death in sickle cell disease: an autopsy study. Br J Haematol. 2003 Oct;123(2):359-65. doi: 10.1046/j.1365-2141.2003.04594.x.

    PMID: 14531921BACKGROUND
  • Powars DR, Elliott-Mills DD, Chan L, Niland J, Hiti AL, Opas LM, Johnson C. Chronic renal failure in sickle cell disease: risk factors, clinical course, and mortality. Ann Intern Med. 1991 Oct 15;115(8):614-20. doi: 10.7326/0003-4819-115-8-614.

    PMID: 1892333BACKGROUND
  • Barros FB, Lima CS, Santos AO, Mazo-Ruiz MF, Lima MC, Etchebehere EC, Costa FF, Saad ST, Camargo EE, Ramos CD. 51Cr-EDTA measurements of the glomerular filtration rate in patients with sickle cell anaemia and minor renal damage. Nucl Med Commun. 2006 Dec;27(12):959-62. doi: 10.1097/01.mnm.0000243373.03636.6e.

    PMID: 17088681BACKGROUND
  • Marouf R, Mojiminiyi O, Abdella N, Kortom M, Al Wazzan H. Comparison of renal function markers in Kuwaiti patients with sickle cell disease. J Clin Pathol. 2006 Apr;59(4):345-51. doi: 10.1136/jcp.2005.026799.

    PMID: 16567469BACKGROUND
  • Vedel P, Obel J, Nielsen FS, Bang LE, Svendsen TL, Pedersen OB, Parving HH. Glomerular hyperfiltration in microalbuminuric NIDDM patients. Diabetologia. 1996 Dec;39(12):1584-9. doi: 10.1007/s001250050618.

    PMID: 8960846BACKGROUND
  • Berg UB. Differences in decline in GFR with age between males and females. Reference data on clearances of inulin and PAH in potential kidney donors. Nephrol Dial Transplant. 2006 Sep;21(9):2577-82. doi: 10.1093/ndt/gfl227. Epub 2006 May 23.

    PMID: 16720595BACKGROUND
  • Chiarelli F, Cipollone F, Romano F, Tumini S, Costantini F, di Ricco L, Pomilio M, Pierdomenico SD, Marini M, Cuccurullo F, Mezzetti A. Increased circulating nitric oxide in young patients with type 1 diabetes and persistent microalbuminuria: relation to glomerular hyperfiltration. Diabetes. 2000 Jul;49(7):1258-63. doi: 10.2337/diabetes.49.7.1258.

    PMID: 10909986BACKGROUND
  • Morris CR, Kato GJ, Poljakovic M, Wang X, Blackwelder WC, Sachdev V, Hazen SL, Vichinsky EP, Morris SM Jr, Gladwin MT. Dysregulated arginine metabolism, hemolysis-associated pulmonary hypertension, and mortality in sickle cell disease. JAMA. 2005 Jul 6;294(1):81-90. doi: 10.1001/jama.294.1.81.

    PMID: 15998894BACKGROUND
  • Reiter CD, Wang X, Tanus-Santos JE, Hogg N, Cannon RO 3rd, Schechter AN, Gladwin MT. Cell-free hemoglobin limits nitric oxide bioavailability in sickle-cell disease. Nat Med. 2002 Dec;8(12):1383-9. doi: 10.1038/nm1202-799. Epub 2002 Nov 11.

    PMID: 12426562BACKGROUND
  • Rother RP, Bell L, Hillmen P, Gladwin MT. The clinical sequelae of intravascular hemolysis and extracellular plasma hemoglobin: a novel mechanism of human disease. JAMA. 2005 Apr 6;293(13):1653-62. doi: 10.1001/jama.293.13.1653.

    PMID: 15811985BACKGROUND
  • Kato GJ, McGowan V, Machado RF, Little JA, Taylor J 6th, Morris CR, Nichols JS, Wang X, Poljakovic M, Morris SM Jr, Gladwin MT. Lactate dehydrogenase as a biomarker of hemolysis-associated nitric oxide resistance, priapism, leg ulceration, pulmonary hypertension, and death in patients with sickle cell disease. Blood. 2006 Mar 15;107(6):2279-85. doi: 10.1182/blood-2005-06-2373. Epub 2005 Nov 15.

    PMID: 16291595BACKGROUND
  • Landburg PP, Teerlink T, Muskiet FA, Duits AJ, Schnog JJ; CURAMA study group. Plasma concentrations of asymmetric dimethylarginine, an endogenous nitric oxide synthase inhibitor, are elevated in sickle cell patients but do not increase further during painful crisis. Am J Hematol. 2008 Jul;83(7):577-9. doi: 10.1002/ajh.21184.

    PMID: 18383318BACKGROUND
  • Loutzenhiser R, Bidani A, Chilton L. Renal myogenic response: kinetic attributes and physiological role. Circ Res. 2002 Jun 28;90(12):1316-24. doi: 10.1161/01.res.0000024262.11534.18.

    PMID: 12089070BACKGROUND
  • Sochett EB, Cherney DZ, Curtis JR, Dekker MG, Scholey JW, Miller JA. Impact of renin angiotensin system modulation on the hyperfiltration state in type 1 diabetes. J Am Soc Nephrol. 2006 Jun;17(6):1703-9. doi: 10.1681/ASN.2005080872. Epub 2006 May 3.

    PMID: 16672313BACKGROUND
  • Aoki RY, Saad ST. Enalapril reduces the albuminuria of patients with sickle cell disease. Am J Med. 1995 May;98(5):432-5. doi: 10.1016/S0002-9343(99)80341-6.

    PMID: 7733120BACKGROUND
  • Foucan L, Bourhis V, Bangou J, Merault L, Etienne-Julan M, Salmi RL. A randomized trial of captopril for microalbuminuria in normotensive adults with sickle cell anemia. Am J Med. 1998 Apr;104(4):339-42. doi: 10.1016/s0002-9343(98)00056-4.

    PMID: 9576406BACKGROUND
  • Reboldi G, Gentile G, Angeli F, Verdecchia P. Choice of ACE inhibitor combinations in hypertensive patients with type 2 diabetes: update after recent clinical trials. Vasc Health Risk Manag. 2009;5(1):411-27. doi: 10.2147/vhrm.s4235.

    PMID: 19475778BACKGROUND
  • Lionnet F, Arlet JB, Bartolucci P, Habibi A, Ribeil JA, Stankovic K; groupe de recommandations et d'etude de la drepanocytose de l'adulte (GREDA). [Guidelines for management of adult sickle cell disease]. Rev Med Interne. 2009 Sep;30 Suppl 3:S162-223. doi: 10.1016/j.revmed.2009.07.001. Epub 2009 Aug 26. French.

    PMID: 19713011BACKGROUND
  • van Deventer HE, George JA, Paiker JE, Becker PJ, Katz IJ. Estimating glomerular filtration rate in black South Africans by use of the modification of diet in renal disease and Cockcroft-Gault equations. Clin Chem. 2008 Jul;54(7):1197-202. doi: 10.1373/clinchem.2007.099085. Epub 2008 May 16.

    PMID: 18487286BACKGROUND

MeSH Terms

Conditions

Anemia, Sickle CellAlbuminuria

Condition Hierarchy (Ancestors)

Anemia, Hemolytic, CongenitalAnemia, HemolyticAnemiaHematologic DiseasesHemic and Lymphatic DiseasesHemoglobinopathiesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesProteinuriaUrination DisordersUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesUrological ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 3, 2010

First Posted

September 6, 2010

Study Start

September 1, 2010

Primary Completion

September 1, 2014

Study Completion

September 1, 2014

Last Updated

June 18, 2015

Record last verified: 2015-06

Locations