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Status unknownNCT01545024Updated Mar 14, 2012

Effect of DPP-IV Inhibitor on Glycemic Control and Autonomic Neuropathy in Adult Patients With Diabetes Mellitus

An observational study in Type 2 Diabetes Mellitus, sponsored by Nagaoka Red Cross Hospital. Status unknown at 1 site in Japan. Open to participants aged 20 Years to 95 Years. Per ClinicalTrials.gov, last updated 2012-03-14.

Sponsored by Nagaoka Red Cross Hospital · Observational

The sponsor has not verified this record recently (last verified Feb 2012), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
60
Ages
20 Years to 95 Years
Sex
All
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Study summary

Rocca et al. reported first that the secretion of incretins, particular GLP-1 in rat is regulated by the enteric nervous system, the afferent and efferent vagus nerves [1]. Further, Kazakos et al. [2] reported that autonomic nerve disturbance (AND) in patients with T2DM impaired the incretin effect owing to decreased GLP-1 secretion. However, Toft-Nielsen et al. [3] reported that the decreased GLP-1 responses in the patients with type 2 diabetes mellitus (T2DM) are unlikely to be related to the AND and, thus, did not support the results of Rocca et al. and Kazakos et al. Recently, Yabe at al. [4] also observed the same observations in Japanese patients with T2DM. Meanwhile, Jin et al. reported that administration of DPP-IV inhibitor recovered the disturbance of diabetic nerve dysfunction in rat [5]. However, it is unknown whether the administration of DPP-IV inhibitor effects on the AND in human, although many studies are performed to investigate the effect of the DPP-IV inhibitors on glycemic control.

Accordingly, it is significant to reinvestigate an effect of DPP-IV inhibitor on glycemic control and autonomic neuropathy in diabetic patients.

Read the detailed description

Autonomic nerve disturbance (AND) is estimated to use coefficient of variance of electrocardiographic beat-to-beat intervals (C.V. R-R). Maximal change of the C,V. R-R with from usual breathing to deep breathing at the resting was used for the evaluation of AND. Less than 2.0 % of the maximal value is estimated to have a positive to AND.

Glycemic control is estimated to measure change of HbA1c value once three months per year.

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Conditions studied

  • Type 2 Diabetes Mellitus
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In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's planned enrollment of 60 is below the median of 233 across 2,220 observational studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

Nagaoka Red Cross Hospital is the lead sponsor of 8 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
20 Years to 95 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Type 1 and 2 diabetic patients who have AND determined by C.V. R-R, outpatients regularly visiting hospital and more than 20 years old (gender is disregarded). Type 1 diabetic patients are treated with Epalrestat 50 mg. 150 mg t.i.d., while type 2 diabetic patients are treated with DPP-IV inhibitors.

Inclusion criteria

type 1 and 2 diabetes mellitus patients

  • Patients who have AND determined by C.V. R-R.
  • Outpatients regularly visiting hospital
  • Patients 20 years old (gender is disregarded)

Exclusion criteria

Exclusion Criteria:

Patients with a serious complication in the heart, liver or kidney

  • Pregnant or possibly pregnant patients, or lactating patients
  • Patients complicated with a malignant tumor at present.
  • Patients participating in other clinical study.
  • Other than the above, patients judged inappropriate as the subjects of this study by the investigator
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Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
60 participants (estimated)

Groups and cohorts

  • DPP-IV inhibitor

    Drug: Sitagliptin, 50 mg once per day per os

Interventions

  • DrugSitagliptin, 50 mg once per day per os

    Before and one year after treatment with DPP-IV inhibitor in diabetic patients with AND.

    Also known as: Nothing

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What researchers measure

Primary outcomes

  1. Glycemic control

    As marker of HbA1c

    Time frame: For one year after treatment wih DPP-IV inhibitor

Secondary outcomes

  1. autonomic nerve disturbance

    Before and after measurment with R-R CV in ECG at rest and respiratory deeping

    Time frame: Before and one year after treatment with DPP-IV inhibitor

07

Study locations

1 of 1 sites recruiting
  • Nagaoka Red Cross Hospital
    Nagaoka, Niigata 940-2085, Japan
    • Kyuzi Kamoi, MD · Contact · kkam-int@echigo.ne.jp · +81-0258-28-3600
    • Kyuzi Kamoi, MD · Principal investigator
    Recruiting
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References and documents

Publications

  • 1. Rocca AS, Brubaker PL. Role of the vagus nerve in mediating proximal nutrient-induced glucagon-like peptide-1 secretion. Endocrinology 1999;140:1687-1694. 2. Kazakos KA, Sarafidis PA, Yovos JG. The impact of diabetic autonomic neuropathy on the incretin effect. Med Sci Monit 2008; 14:CR213-220. 3. Toft-Nielsen MB, Damholt MB, Madsbad S, Hilsted LM, Hughes TE, Michelsen BK, Holst JJ. Determinants of the impaired secretion of glucagon-like peptide-1 in type 2 diabetic Patients. J Clin Endocrinol Metab 2001;86:3717-3723. 4. Yabe D, Watanabe K, Sugawara K, Kuwata H, Kitamoto Y, Sugizaki K, Fujiwara S, Hishizawa M, Hyo T, Kuwabara K, Yokota K, Iwasaki M, Kitatani N, Kurose T, Inagaki N, Seino Y (2011) Comparison of incretin immunoassays with or without plasma extraction: incretin secretion in Japanese patients with type 2 diabetes. J Diabetes Invest 2011;2:DOI. 5. Jin HY, Liu WJ, Park JH, Baek HS, Park TS. Effect of dipeptidyl peptidase-IV (DPP-IV) inhibitor (Vildagliptin) on peripheral nerves in streptozotocin-induced diabetic rats. Arch Med Res 2009;40:536-544.
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 14, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01545024
Lead sponsor
Nagaoka Red Cross Hospital
Responsible party
Kyuzi Kamoi (Investigator, Nagaoka Red Cross Hospital) — Principal investigator
First posted
Mar 6, 2012
Start date
Sep 2011
Primary completion
Dec 2012 (estimated)
Completion
Jan 2013 (estimated)
Last update
Mar 14, 2012

Study contacts

Kyuzi Kamoi, MD
Contact
kkam-int@echigo.ne.jp
-81-0258-28-3600
Kyuzi Kamoi, MD
principal investigator · Nagaoka Red Cross Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Feb 2012. You cannot join it, but the record below documents what was studied.

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