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Ascensia Contour (Bayer)

Device Name:Contour
Manufacturer:Sole: Bayer Healthcare AG, Kaiser-Willhelm-Allee, Building W11, 51368 Leverkusen, GERMANY.
Measuring functions:Blood glucose
Primary Client Use:Intended for self-measurement and home use
Measurement Site:Finger
Measurement Occurrence:Single measurements only
Availability:Discontinued but still available
Description: The Ascensia Contour (Bayer) is a clinically validated and 3-star blood glucose meter. Measurements are taken from the finger and it is intended for self-measurement and home use. This device has been discontinued by the manufacturer but may be available through certain outlets.

The technology used in the Ascensia Contour (Bayer), to measure blood glucose, is among the best rated for accuracy by Medaval Ltd. It has passed in clinical validation studies, between general and specific populations, according to recognised standard protocols, as published in peer-reviewed publications.

Accuracy AssessmentRecommendationBasis
Medaval★★★ RecommendationRecent clinical validation; recent protocol; multiple clinical validations
TÜV Rheinland NederlandGeneral useUnpublished internal data
Institute of Health Economics (CA)General useNo evidence provided
MDR CriteriaSelf-measurementPublished evidence
Consumer BodyVersionQuartileComment
Consumer Reports (US)2019Good 
Amazon Best Sellers (US)2019A (4.2 / 5) 

Validation Publications

Freckmann G, Baumstark A, Jendrike N, Zschornack E, Kocher S, Tshiananga J, Heister F, Haug C. System accuracy evaluation of 27 blood glucose monitoring systems according to DIN EN ISO 15197. Diabetes Technol Ther. 2010 Mar;12(3):221-31. doi: 10.1089/dia.2009.0128. PMID: 20151773.

15197:2003 - Pass General population

Harrison B, Leazenby C, Halldorsdottir S. Accuracy of the CONTOUR® blood glucose monitoring system. J Diabetes Sci Technol. 2011 Jul 1;5(4):1009-13. doi: 10.1177/193229681100500425. PMID: 21880245. Available from: PMC3192609.

15197:2003 - Pass General population

Tack C, Pohlmeier H, Behnke T, Schmid V, Grenningloh M, Forst T, Pfützner A. Accuracy evaluation of five blood glucose monitoring systems obtained from the pharmacy: a European multicenter study with 453 subjects. Diabetes Technol Ther. 2012 Apr;14(4):330-7. Epub: 2011 Dec 16. doi: 10.1089/dia.2011.0170. PMID: 22176154.

15197:2003 - Fail General population

15197:2013 - Fail General population

Pfützner A, Mitri M, Musholt PB, Sachsenheimer D, Borchert M, Yap A, Forst T. Clinical assessment of the accuracy of blood glucose measurement devices. Curr Med Res Opin. 2012 Apr;28(4):525-31. Epub: 2012 Mar 21. doi: 10.1185/03007995.2012.673479. PMID: 22435798.

15197:2003 - Pass General population

Zueger T, Schuler V, Stettler C, Diem P, Christ ER. Assessment of three frequently used blood glucose monitoring devices in clinical routine. Swiss Med Wkly. 2012 Jul 12;142:w13631. doi: 10.4414/smw.2012.13631. PMID: 22791566. eCollection 2012.

15197:2003 - Pass General population (Note: Reference device: HemoCue Glucose 201+)

Pfützner A, Schipper C, Ramljak S, Flacke F, Sieber J, Forst T, Musholt PB. Evaluation of the effects of insufficient blood volume samples on the performance of blood glucose self-test meters. J Diabetes Sci Technol. 2013 Nov 1;7(6):1522-9. doi: 10.1177/193229681300700612. PMID: 24351178. Available from: PMC3876330.

15197:2003 - Fail Using insufficient blood samples (n=31)

Pfützner A, Hengesbach C, Demircik F, Schipper C, Forst T, Musholt PB. Performance of blood glucose meters in compliance with current and future clinical ISO15197 accuracy criteria. Curr Med Res Opin. 2014 Feb;30(2):185-90. Epub: 2013 Nov 6. doi: 10.1185/03007995.2013.858617. PMID: 24156775.

15197:2003 - Pass General population

15197:2013 - Fail General population

Pleus S, Baumstark A, Rittmeyer D, Jendrike N, Haug C, Freckmann G. Performance of two updated blood glucose monitoring systems: an evaluation following ISO 15197:2013. Curr Med Res Opin. 2016 May;32(5):847-55. Epub: 2016 Feb 23. doi: 10.1185/03007995.2016.1146666. PMID: 26809001.

15197:2013 - Pass General population

Andriankaja OM, Muñoz-Torres FJ, Vergara JL, Pérez CM, Joshipura K. Utility of point-of-care vs reference laboratory testing for the evaluation of glucose levels. Diabet Med. 2019 May;36(5):626-632. Epub: 2019 Mar 1. doi: 101111/dme13922. PMID: 30710457. Available from: PMC6599708.

ADA:1996 - Pass Obesity + Diabetes (n=62)

ADA:1996 - Fail Obesity + Pre-diabetes (n=301)

ADA:1996 - Fail Obesity + Normoglycaemia (n=929)

Point-of-care blood glucose measurement may be useful to screen people with diabetes, and to assess glucose among individuals with diabetes where blood can be drawn, but laboratory tests are unavailable or untimely.

SKUP. Report from the evaluation SKUP/2004/30: Contour (Bayer Healthcare), a system for blood glucose measurement. Bergen, Norway: SKUP; 2004. 48 p. Available from: skup.org.

ADA:1996 - Pass General population (Note: BLS-recorded measurements)

15197:2003 - Pass General population (Note: Subject-recorded measurements when the meter is new (less than 3 weeks of use) only.)

SKUP. Report from the evaluation SKUP/2009/75: Contour (Bayer Healthcare), a system for blood glucose measurement. Bergen, Norway: SKUP; 2009. 50 p. Available from: skup.org.

15197:2003 - Pass General population

Relevant Publications

Roth-Kleiner M, Stadelmann Diaw C, Urfer J, Ruffieux C, Werner D. Evaluation of different POCT devices for glucose measurement in a clinical neonatal setting. Eur J Pediatr. 2010 Nov;169(11):1387-95. Epub: 2010 Jun 24. doi: 10.1007/s00431-010-1243-2. PMID: 20574734.

Retrospective study with ISO 15197:2003 criteria applied to results, on neonates, recorded over 1 year. The authors claim that the device tended to overestimate glycaemia values; however the application of protocol criteria is dependent on the protocol procedure being followed precisely.

Musholt PB, Schipper C, Thomé N, Ramljak S, Schmidt M, Forst T, Pfützner A. Dynamic electrochemistry corrects for hematocrit interference on blood glucose determinations with patient self-measurement devices. J Diabetes Sci Technol. 2011 Sep 1;5(5):1167-75. doi: 10.1177/193229681100500520. PMID: 22027312. Available from: PMC3208875.

Reliable correction for potential haematocrit influence.

Herrington SJ, Gee DL, Dow SD, Monosky KA, Davis E, Pritchett KL. Comparison of glucose monitoring methods during steady-state exercise in women. Nutrients. 2012 Sep;4(9):1282-92. Epub: 2012 Sep 14. doi: 10.3390/nu4091282. PMID: 23112916.

The publication describes the Ascensia (Bayer) Contour being used as a reference device for comparison with Dexcom Seven Plus.

Comparisons, in 12 non-diabetic women during intensity cycling and recovery, to the Dexcom Seven Plus. Authors conclude inconsistent results with further research required.

Lv H, Zhang GJ, Kang XX, Yuan H, Lv YW, Wang WW, Randall R. Factors interfering with the accuracy of five blood glucose meters used in Chinese hospitals. J Clin Lab Anal. 2013 Sep;27(5):354-66. doi: 10.1002/jcla.21611. PMID: 24038220.

The publication evaluates the performance of the Ascensia (Bayer) Contour, though not in a formal validation.