Clinical development and endpoint strategies for biomaterials and medical devices

Author(s):  
S.F. Amato
2019 ◽  
Vol 35 (S1) ◽  
pp. 71-72
Author(s):  
Cyril Olivier ◽  
Estelle Piotto ◽  
Corinne Collignon ◽  
Hubert Galmiche ◽  
Chantal Bélorgey

IntroductionMobile health systems (MHS) are one of the more spreading technologies in the field of medicine. However, identification of useful MHS is rather challenging. Few of them are, or could be, connected medical devices (cMD). Like other medical devices, cMD must be assessed to validate claimed benefits for reimbursement purposes. Clinical added value demonstration is a major criterion used to satisfy administrative requirements. With the increase of clinical studies that are including MHS, study registries can be used for insight into the type of evidence expected to become available in the near future.MethodsIn 2018, the French National Authority for Health (HAS) performed a review of registered MHS clinical study designs. The Clinicaltrials.gov database was consulted for all studies indexed with the terms “mHealth” and “mobile health” for the search fields “study title”, “conditions” and “interventions”.ResultsFour hundred and fifteen clinical studies were registered. Three hundred and eighty studies were interventional with most comprised of a randomized study design (75 percent). Fifteen had a crossover design. Only few observational studies (n = 35) were registered. These mainly concerned (59 percent) patient use of an app on a smartphone without any other device.ConclusionsPatterns of clinical studies were not found to significantly differ between MHS and other medical devices. Most of the clinical studies were randomized and specific criteria to assess MHS could easily be identified. However, specific methodologies for clinical development are not used in practice for cMD health technology assessment. In the absence of validated and specific methodology for clinical development, current methods that are being used in these ongoing studies will nonetheless be generating evidence for the upcoming years.


Author(s):  
Alain Bernard ◽  
Michel Vaneau ◽  
Isabelle Fournel ◽  
Hubert Galmiche ◽  
Patrice Nony ◽  
...  

Author(s):  
Delma P. Thomas ◽  
Dianne E. Godar

Ultraviolet radiation (UVR) from all three waveband regions of the UV spectrum, UVA (320-400 nm), UVB (290-320 nm), and UVC (200-290 nm), can be emitted by some medical devices and consumer products. Sunlamps can expose the blood to a considerable amount of UVR, particularly UVA and/or UVB. The percent transmission of each waveband through the epidermis to the dermis, which contains blood, increases in the order of increasing wavelength: UVC (10%) < UVB (20%) < UVA (30%). To investigate the effects of UVR on white blood cells, we chose transmission electron microscopy to examine the ultrastructure changes in L5178Y-R murine lymphoma cells.


Author(s):  
B.D. Tall ◽  
K.S. George ◽  
R. T. Gray ◽  
H.N. Williams

Studies of bacterial behavior in many environments have shown that most organisms attach to surfaces, forming communities of microcolonies called biofilms. In contaminated medical devices, biofilms may serve both as reservoirs and as inocula for the initiation of infections. Recently, there has been much concern about the potential of dental units to transmit infections. Because the mechanisms of biofilm formation are ill-defined, we investigated the behavior and formation of a biofilm associated with tubing leading to the water syringe of a dental unit over a period of 1 month.


2020 ◽  
Vol 19 (10) ◽  
pp. 653-654
Author(s):  
Rod MacKenzie ◽  
Peter Honig ◽  
Judy Sewards ◽  
Robert Goodwin ◽  
Marie-Pierre Hellio
Keyword(s):  

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