NCT02798198

Brief Summary

Objective: The main target of this study was to research the early changes in pulmonary function and intrarenal hemodynamics, then research the correlation between the pulmonary function and the renal hemodynamics in type 2 diabetes (T2DM) patients without diabetic kidney disease (DKD). Method: 37 T2DM patients (diabetes group) without DKD and 33 healthy people (control group) were choosed to research early changes in pulmonary function and intrarenal hemodynamics, then research the correlation between the pulmonary function and the renal blood flow in T2DM patients, all having normal renal function. The primary endpoints were the pulmonary function parameters (VC%, FVC%, FEV1%, PEF%, MVV%, TLC%, FEV1/FVC%, DLCO%, and DLCO/VA%); the secondary endpoints were the intrarenal hemodynamic (bilateral kidney RI) in bilateral interlobular renal arteries were evaluated using; the tertiary endpoints were the biochemical variables: blood-fat (TC, HDL-C, LDL-C, and TG), renal function parameters (BUN, Cr, and GFR); in addition, the albumin excrete rate (AER), urinary albumin/creatinine ratio (UACR) were measured.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
70

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Sep 2015

Shorter than P25 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2015

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2016

Completed
29 days until next milestone

First Submitted

Initial submission to the registry

May 30, 2016

Completed
15 days until next milestone

First Posted

Study publicly available on registry

June 14, 2016

Completed
Last Updated

June 14, 2016

Status Verified

May 1, 2016

Enrollment Period

8 months

First QC Date

May 30, 2016

Last Update Submit

June 8, 2016

Conditions

Outcome Measures

Primary Outcomes (3)

  • The pulmonary function (using spirometer) in the healthy people and T2DM patients and comparing the differences between the two groups

    pulmonary function parameters include: VC%, FVC%, FEV1%, PEF%, MVV%, TLC%, FEV1/FVC%, DLCO%, and DLCO/VA%

    one week

  • The bilateral kidney RI(using CDI) in healthy people and T2DM patients and comparig the differences between the two groups

    The Doppler resistance index (RI) \[(peak systolic velocity, PSV - peak end diastolic velocity, PED)/ peak systolic velocity, PSV

    one week

  • The correlation between the pulmonary function and the renal hemodynamics in 37 T2DM patients without DKD

    two weeks

Secondary Outcomes (3)

  • Blood-fat (TC, HDL-C, LDL-C, and TG)in the healthy people and T2DM patients and comparing the differences between the two groups

    Three weeks

  • Renal function parameters (BUN, Cr) in the healthy people and T2DM patients and comparing the differences between the two groups

    Three weeks

  • The albumin excrete rate (AER), urinary albumin/creatinine ratio (UACR)in the healthy people and T2DM patients and comparing the differences between the two groups

    Three weeks

Study Arms (2)

Diabetes group

37 T2DM adults (diabetes group) without DKD

Other: T2DM

Control group

33 healthy adults (control group)

Other: T2DM

Interventions

T2DMOTHER

T2DM without DKD

Control groupDiabetes group

Eligibility Criteria

Age35 Years - 66 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

We selected 42 T2DM patients (24 males, 18 females) without DKD as diabetes group and 38 healthy people (21 males, 17 females) as control group from the diabetic outpatient clinic in Shenyang the Fourth Hospital of People, but only 37 patients (21 males, 16 females) in the diabetes group and 33 healthy people (18 males, 15 females) can be researched in our study, all the participants were the Chinese Hans.

You may qualify if:

  • \) The patients were diagnosed with T2DM according to the guidelines of the American Diabetes Association ; 2) No smoking history, pulmonary disease, cold, nor pulmonary infection within a fortnight; 3) Did not have hepatopathy, nephropathy, hyperuricemia, and gastrointestinal disease; and 4) Likely to have good compliance and able to visit our hospital for periodic assessments.

You may not qualify if:

  • \) T1DM, gestation and lactation; 2) Renal inadequacy; 3) Hypohepatia; 4) Intensive care with insulin treatment; 5) The patients combinated with DKD and hypertension (antihypertensive drugs were used); 6) Patients with other renal conditions that could affect the hemodynamics, such as urolithiasis, urinary infection, and renal cyst (diameter \> 3 cm); 7) Heart failure; 8) Cholesterol-lowering drugs can not control the blood-fat ; and 9) Use of systemically injected glucocorticoids within 3 months prior to our study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Tai H, Jiang XL, Kuang JS, Yu JJ, Ju YT, Cao WC, Chen W, Cui XY, Zhang LD, Fu X, Jia LQ, Zhang Y. Early changes in pulmonary function and intrarenal haemodynamics and the correlation between these sets of parameters in patients with T2DM. PLoS One. 2019 Dec 18;14(12):e0224923. doi: 10.1371/journal.pone.0224923. eCollection 2019.

MeSH Terms

Conditions

Diabetes Mellitus, Type 2

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief physician

Study Record Dates

First Submitted

May 30, 2016

First Posted

June 14, 2016

Study Start

September 1, 2015

Primary Completion

May 1, 2016

Study Completion

May 1, 2016

Last Updated

June 14, 2016

Record last verified: 2016-05