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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT01943396
Other study ID # FNHK2013/01
Secondary ID IGA-NT14037-4/20
Status Active, not recruiting
Phase Phase 4
First received June 20, 2013
Last updated May 30, 2016
Start date September 2013
Est. completion date September 2016

Study information

Verified date May 2016
Source University Hospital Hradec Kralove
Contact n/a
Is FDA regulated No
Health authority Czech Republic: State Institute for Drug Control
Study type Interventional

Clinical Trial Summary

In this research rheohemapheresis will be used for the treatment of patients with high-risk dry form of age-related macular degeneration. Correction of rheologic parameters and activation of retinal functional reserves after the therapy will positively influence functional condition of retina. The newest special electrophysiologic methods will be used to determine retinal changes in time. The investigators will also evaluate some important immunologic factors and complement changes as well as define indication criteria more precisely.


Description:

With optimized therapeutic protocol we would prevent progression of the dry form of AMD into its devastating wet form and stabilize the situation. We suppose that retinal morphologic and functional conditions would improve in a high percentage of patients. Also possible technical and economic savings would not be less important with our own therapeutic protocol, especially, when blindness could be prevented.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 36
Est. completion date September 2016
Est. primary completion date May 2016
Accepts healthy volunteers No
Gender Both
Age group N/A to 85 Years
Eligibility Inclusion Criteria:

Patients with AMD in the stage of soft drusen, grade 1-3 according to European Eye Study (EURYEYE) (see reference No 1), body weight over 50 Kilo and with other feasible indications for aphereses therapy (peripheral veins allowing vascular access to establish the extracorporal circuit).

Exclusion Criteria:

- Study eye with exudative AMD

- Study eye with concomitant retinal or choroidal disorder other than AMD

- Study eye with significant central lens opacities and/or conditions that limit the view of the fundus

- uncontrolled diabetes, uncontrolled arterial hypertension

- insufficient antecubital venous access

- haemato-oncological malignancies

- patients who are unwilling to adhere to visit examination schedules . poor general condition (serious diseases - infections,cardiovascular or cerebral insufficience, severe IHD)

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Procedure:
rheohemapheresis
Each treated patient will receive a series of 8 rheohemaphereses (cascade filtration) within 10 weeks. One plasma volume will be washed.

Locations

Country Name City State
Czech Republic Faculty Hospital Hradec Kralove

Sponsors (1)

Lead Sponsor Collaborator
University Hospital Hradec Kralove

Country where clinical trial is conducted

Czech Republic, 

References & Publications (12)

Augood C, Fletcher A, Bentham G, Chakravarthy U, de Jong PT, Rahu M, Seland J, Soubrane G, Tomazzoli L, Topouzis F, Vioque J, Young I. Methods for a population-based study of the prevalence of and risk factors for age-related maculopathy and macular degeneration in elderly European populations: the EUREYE study. Ophthalmic Epidemiol. 2004 Apr;11(2):117-29. — View Citation

Bláha M, Cermanová M, Bláha V, Blazek M, Malý J, Siroký O, Solichová D, Filip S, Rehácek V. Safety and tolerability of long lasting LDL-apheresis in familial hyperlipoproteinemia. Ther Apher Dial. 2007 Feb;11(1):9-15. — View Citation

Blaha M, Zadak Z, Blaha V, Andrys C, Havel E, Vyroubal P, Blazek M, Filip S, Lanska M, Maly J. Extracorporeal LDL cholesterol elimination (25 years of experience in CZ). Atheroscler Suppl. 2009 Dec 29;10(5):17-20. doi: 10.1016/S1567-5688(09)71804-5. — View Citation

Borberg H. 26 years of LDL--apheresis: a review of experience. Transfus Apher Sci. 2009 Aug;41(1):49-59. doi: 10.1016/j.transci.2009.05.013. Epub 2009 Jun 25. — View Citation

Friedman E. The pathogenesis of age-related macular degeneration. Am J Ophthalmol. 2008 Sep;146(3):348-9. doi: 10.1016/j.ajo.2008.05.017. — View Citation

Klein R, Klein BE, Knudtson MD, Meuer SM, Swift M, Gangnon RE. Fifteen-year cumulative incidence of age-related macular degeneration: the Beaver Dam Eye Study. Ophthalmology. 2007 Feb;114(2):253-62. — View Citation

Klingel R, Fassbender C, Fassbender T, Göhlen B. Clinical studies to implement Rheopheresis for age-related macular degeneration guided by evidence-based-medicine. Transfus Apher Sci. 2003 Aug;29(1):71-84. Review. — View Citation

Klingel R, Fassbender C, Heibges A, Koch F, Nasemann J, Engelmann K, Carl T, Meinke M, Erdtracht B. RheoNet registry analysis of rheopheresis for microcirculatory disorders with a focus on age-related macular degeneration. Ther Apher Dial. 2010 Jun;14(3):276-86. doi: 10.1111/j.1744-9987.2010.00807.x. — View Citation

Koss MJ, Kurz P, Tsobanelis T, Lehmacher W, Fassbender C, Klingel R, Koch FH. Prospective, randomized, controlled clinical study evaluating the efficacy of Rheopheresis for dry age-related macular degeneration. Dry AMD treatment with Rheopheresis Trial-ART. Graefes Arch Clin Exp Ophthalmol. 2009 Oct;247(10):1297-306. doi: 10.1007/s00417-009-1113-7. Epub 2009 Jul 23. — View Citation

Rencová E, Bláha M, Studnicka J, Blažek M, Bláha V, Dusová J, Malý J, Kyprianou G, Vašátko T, Langrová H. Haemorheopheresis could block the progression of the dry form of age-related macular degeneration with soft drusen to the neovascular form. Acta Ophthalmol. 2011 Aug;89(5):463-71. doi: 10.1111/j.1755-3768.2009.01710.x. Epub 2010 Jan 22. — View Citation

Rencová E., Bláha M., Rozsíval ry form age related macular degeneration with rheohemotherapy. (In Czech.) In Trendy soudobé oftalmologie 7. Praha: Galén, 2011, s. 16-31. ISBN 978- 80-7262- 691-5.

Troutbeck R, Al-Qureshi S, Guymer RH. Therapeutic targeting of the complement system in age-related macular degeneration: a review. Clin Experiment Ophthalmol. 2012 Jan-Feb;40(1):18-26. doi: 10.1111/j.1442-9071.2011.02581.x. Review. — View Citation

* Note: There are 12 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Electroretinography Evaluation of functional changes in single retinal layers and areas by newest special electrophysiologic methods 2.5 years Yes
Secondary immunologic parameters changes To verify till undescribed changes of complement, some cytokines,factors monitoring endothelial function, and apoptosis markers, important for rapid repair of retinal revitalization. 2.5 years Yes
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