Evidence map›Paper›PMID 32562376›Full record

ArticleJournal of diabetes investigation2021

Effect of the FreeStyle Libre™ flash glucose monitoring system on glycemic control in individuals with type 2 diabetes treated with basal-bolus insulin therapy: An open label, prospective, multicenter trial in Japan.

Wataru Ogawa, Yushi Hirota, Takeshi Osonoi, Takahiro Tosaki, Yoshiro Kato, Kazunori Utsunomiya, Rimei Nishimura, Jiro Nakamura

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Journal of diabetes investigation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Continuous glucose monitoring in type 2 diabetes: a systematic review of barriers and opportunities for care improvement.International journal for quality in health care : journal of the International Society for Quality in Health Care · 2025
    Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 2 countries.

Wataru OgawaDivision of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.ORCID https://orcid.org/0000-0002-0432-4366
Yushi HirotaDivision of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.ORCID https://orcid.org/0000-0002-3035-4155
Takeshi OsonoiNakakinen Clinic, Ibaraki, Japan.ORCID https://orcid.org/0000-0002-5410-9277
Takahiro TosakiTDE Healthcare Corporation, TOSAKI Clinic for Diabetes and Endocrinology, Aichi, Japan.ORCID https://orcid.org/0000-0003-1004-4173
Yoshiro KatoDivision of Diabetes, Department of Internal Medicine, Aichi Medical University School of Medicine, Aichi, Japan.
Kazunori UtsunomiyaDivision of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University Hospital, Tokyo, Japan.
Rimei NishimuraDivision of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University Hospital, Tokyo, Japan.
Jiro NakamuraDivision of Diabetes, Department of Internal Medicine, Aichi Medical University School of Medicine, Aichi, Japan.
Aichi Medical University · JPKobe University · JPThe Jikei University Hospital · JPDiabetes Australia · AUMito Saiseikai General Hospital · JP

Funding

Abbott Diabetes Care
6 · The paper itself

Abstract

AIMS/

introductionWe investigated the effect of FreeStyle Libre MATERIALS AND

methodsThis prospective, 90-day single-arm study enrolled 94 adults with type 2 diabetes treated with insulin. A 14-day masked baseline phase was followed by an 11-week treatment phase during which participants used the device to monitor glucose levels. The primary end-point was time spent in hypoglycemia (<70 mg/dL) for baseline versus study end (days 76-90). Secondary end-points included other measures of glycemic control, along with patient satisfaction using the Japanese Diabetes Treatment and Satisfaction Questionnaire.

resultsTime spent in hypoglycemia was low at baseline (0.51 ± 0.93 h/day) and did not significantly decrease at study end (0.47 ± 0.63 h/day, P = 0.6354). Time in range, time in hyperglycemia and estimated A1c all improved versus baseline (by +1.7 ± 3.0 h/day, -1.6 ± .4 h/day and -0.4 ± 0.8%, respectively, P < 0.0001 in each). Finger stick tests fell from 2.9 ± 1.3 to 1.9 ± 1.4/day, and mean scanning frequency during the intervention phase was 11.3/day. The mean treatment satisfaction score increased by 11.8 ± 5.3 (P < 0.0001). Two severe hypoglycemia-related adverse events were reported; one of which was possibly related to the device. Three participants reported mild device-related skin trauma, site discomfort or subcutaneous bleeding.

conclusionsUse of FreeStyle Libre by Japanese type 2 patients diabetes treated with basal-bolus insulin therapy showed a low baseline of hypoglycemia, and enabled improved glycemic control and treatment satisfaction.

Indexed as

Glycemic ControlBiomarkersBlood GlucoseBlood Glucose Self-MonitoringDiabetes Mellitus, Type 2FemaleFollow-Up StudiesHumansHypoglycemiaHypoglycemic AgentsInsulinInsulin Infusion SystemsJapanMaleMiddle AgedPrognosisBiomarkersBlood GlucoseHypoglycemic AgentsInsulinHypoglycemiaIntermittently scanned continuous glucose monitoringType 2 diabetes

Identifiers

PMID32562376
PMCPMC7779269
OpenAlexW3036133837

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.