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OpenTrials
Completed

NCT Number: NCT00922649

Pilot Study Assessing Insulin Pump Therapy in Type 2 Diabetes

16-week, open-label, multi-center pilot study. Insulin pump naïve subjects with type 2 diabetes who are not achieving glycemic targets (screening A1C ≥ 7.0%) on an established regimen of either: 1) ≥ 2 OAs (Cohort A), 2) basal insulin ± OAs (Cohort B), or 3) basal-bolus insulin ± OAs (Cohort C) will initiate basal-bolus therapy with an insulin pump using a rapid-acting insulin analog.

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Key information

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

The Regents of the University of California on behalf of its San Diego campus, La Jolla, California, United States

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Is 18 to 75 years of age, inclusive;
  • Has a clinical diagnosis of type 2 diabetes mellitus;
  • Is anti-glutamic acid decarboxylase (GAD) antibody negative;
  • Has an A1C ≥ 7.0% and ≤ 10.5%;
  • Has a body mass index (BMI) ≥ 25 kg/m2 and ≤ 40 kg/m2;
  • Is treated with either ≥ 2 oral antidiabetic agents (OA) or basal insulin ± OA(s) or basal-bolus insulin ± OA(s) for at least 3 months (Subjects may also be treated with exenatide [Byetta] or pramlintide [Symlin].
  • If on concomitant metformin, has serum creatinine < 1.5 mg/dL (male) or <1.4 mg/dL (female);
  • If female, has a negative urine pregnancy test

Exclusion criteria

  • Has experienced recurrent severe hypoglycemia (> 2 episodes) requiring assistance during the past 6 months;
  • Has clinical cardiovascular disease (CVD) as evidenced by prior myocardial infarction, stroke, arterial revascularization and/or angina with ischemic changes on ECG at rest, changes on graded exercise test, or positive cardiac imaging test results;
  • Has abnormalities on the screening (Visit 1) 12-lead ECG that are deemed by the investigator to be clinically significant;
  • Is currently being treated with or expected to require or undergo treatment with systemic steroids by oral, intravenous, or intramuscular route or potent inhaled,intrapulmonary, intranasal, or topical steroids that are known to have a high rate of systemic absorption;
  • Currently abuses drugs or alcohol or has a history of abuse that in the investigator's opinion would cause the individual to be non-compliant;
  • Has any significant medical condition, laboratory findings, or medical history that in the investigator's opinion may affect successful completion of the study and/or personal well-being;

Treatment and study plan

Insulin pump therapy

Device

Initiation of Insulin pump therapy in patients on >2 OAs (Cohort A), basal insulin ± OAs (Cohort B), or basal-bolus insulin ± OAs (Cohort C.

Primary outcomes

  1. Insulin doses at Week 16

    Time frame: Week 16

    To evaluate insulin doses after 16 weeks of insulin pump therapy aimed at achieving normal or near-normal glycemic control in subjects with type 2 diabetes.This included the total daily insulin dose, basal and bolus insulin doses.

  2. Ratio of Basal-to-Bolus Insulin Dose at Week 16

    Time frame: 16 weeks

    Evaluate insulin dosing patterns after 16 weeks of insulin pump therapy aimed at safely achieving normal or near-normal glycemic control in patients with type 2 diabetes

  3. Number of daily basal rates at Week 16

    Time frame: Week 16

    To evaluate insulin dosing patterns, i.e., number of daily basal rates, after 16 weeks of insulin pump therapy aimed at achieving normal or near-normal glycemic control in subjects with type 2 diabetes.

Secondary outcomes

  1. A1C (Hemoglobin A1c)

    Time frame: Week 16

    To evaluate the effect of 16 weeks of insulin pump therapy in subjects with type 2 diabetes on glycemic outcome

  2. 7 point profile

    Time frame: Week 16

    Self-monitored 7-point profiles were compared at baseline and Week 16 for each cohort and all cohorts combined.

  3. CGM Glucose Ranges - Percent of Measurements

    Time frame: End of study

    The percent of glucose values within the target range of 70-180 mg/dL, as measured by CGM

  4. Body Weight

    Time frame: Week 16

    Weight change was evaluated at Week 16 for each cohort and all cohorts combined.

  5. Hypoglycemia

    Time frame: Week 16

    The incidence (percent of patients with at least one episode of hypoglycemia) of minor hypoglycemia was evaluated respectively. Minor hypoglycemia was defined as symptoms consistent with hypoglycemia that either resolved spontaneously or upon self-treatment with oral carbohydrate. Severe hypoglycemia referred to symptoms consistent with hypoglycemia during which the patient required the assistance of another individual and was associated with a documented glucose concentration less than 56 mg/dL or prompt recovery after oral carbohydrate, intravenous glucose, or glucagon.

  6. Change from baseline to week 16 in Patient Reported Outcomes (PROs)

    Time frame: Week 16

    PROs were assessed at Baseline, Wk 8 (except for EQ-5D) and Wk 16, including EuroQol-5 Dimensions (EQ-5D) (Generic health-related QoL), Diabetes Symptom Checklist-Revised (DSC-R) (Diabetes-specific QoL), and Insulin Delivery System Rating Questionnaire (IDSRQ) (Treatment Satisfaction with insulin delivery system)

Sponsors and collaborators

Lead sponsor

Animas Corporation

Industry

Registry information

Important dates

Study start
2008
Primary completion
2008
Study completion
2009
First posted
Jun 17, 2009
Registry last updated
Sep 21, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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