Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

User Evaluation of the MiniMed 640G Insulin Pump

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2013 by Medtronic Diabetes.
Recruitment status was:  Not yet recruiting
Information provided by (Responsible Party):
Medtronic Diabetes Identifier:
First received: November 18, 2013
Last updated: November 21, 2013
Last verified: November 2013

This four center international study will include two United Kingdom National Health Service centers, and two centers in Melbourne, Australia. The objective of the study is to evaluate subject acceptance of a new insulin pump and transmitter together with the accompanying training materials. Descriptive data from participant questionnaires and device uploads will be evaluated.

Pediatric subjects between the ages of 7 - 18 years and adults from the age of 19 years of age upwards, who currently use an insulin pump in the management of their type 1 or type 2 diabetes, will be invited to participate. Each subject will be trained on the study device and then use it for approximately four weeks. During this time there will be three in-clinic visits and four follow-up phone calls, scheduled at the subjects' convenience. At the end of this period, they will revert back to their original insulin pump and complete a questionnaire on the study pump training materials, features and usability.

Type 1 Diabetes
Type 2 Diabetes

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: A User Evaluation of the MiniMed® 640G Insulin Pump and Guardian® Link Transmitter

Resource links provided by NLM:

Further study details as provided by Medtronic Diabetes:

Primary Outcome Measures:
  • Likert scale [ Time Frame: Four weeks of pump wear ]
    Descriptive summary will be used to characterize the results of the study questionnaires. The questionnaire will use a Likert scale (rating of 1 to 7) to assess overall subject acceptance of the MiniMed 640G and Guardian Link Transmitter. A response of 4 or greater on the Likert scale will be considered positive and indicate and product acceptance.

Estimated Enrollment: 40
Study Start Date: November 2013
Estimated Study Completion Date: February 2014
Estimated Primary Completion Date: February 2014 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   7 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients within the research center diabetes population who currently use insulin pump for their diabetes therapy.

Criteria for Inclusion: A subject is eligible for the user evaluation study if all of the following criteria are met:

  1. Subject is 7 years or older at time of screening
  2. Subject is current insulin pump user for at least 3 months
  3. Subject has the following CGM experience as determined by the Investigator:

    • Has experience and is able to insert/change sensor by herself/himself and
    • Has experience and can recharge the transmitter and
    • Has experience and can read sensor data in real-time on her/his pump screen
  4. Subject/legal representative has signed a Patient Informed Consent and is willing to comply with the study procedures;
  5. Subject is willing to complete study questionnaires throughout the study
  6. Must have the following clinical diagnosis:

1. Type 1 diabetes, for a minimum of 6 months prior to enrollment

Criteria for Exclusion: A subject is excluded from the user evaluation if any of the following criteria are met:

  1. Female subject has a positive urine pregnancy screening test.
  2. Female subject who plans to become pregnant during the course of study. If a woman becomes pregnant during participation, she will be withdrawn
  3. Subject has any condition that, in the opinion of the Investigator or qualified Investigational Centre staff, may preclude him/her from participating in the study and completing study related procedures.
  4. Subject has impaired vision or hearing problems that could compromise the handling of the device as determined by Investigator or qualified Investigational Centre staff
  5. Subject is unable to tolerate tape adhesive in the area of sensor placement
  6. Subject has any unresolved adverse skin condition in the area of sensor placement (e.g. psoriasis, rash, Staphylococcus infection)
  7. Subject has travel plans which would make it difficult for the subject to attend on-site study visits as scheduled
  8. Subject is actively participating in an investigational study (drug or device) wherein he/she has received treatment from an investigational study drug or investigational study device in the last 2 weeks (CEP267 User Evaluation is not included in this exclusion criteria).
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01991548

Contact: Bob Janowski, BA 818-576-5662

St Vincent Hospital and The University of Melbourne Not yet recruiting
Fitzroy, Australia, 3050
Principal Investigator: David O'Neal         
The Royal Melbourne Hospital Not yet recruiting
Patkville, Australia, 3050
Principal Investigator: Peter Colman         
United Kingdom
University College Hospital Not yet recruiting
London, United Kingdom, NW1 2PG
Principal Investigator: Peter Hindmarsh         
King's College London Not yet recruiting
London, United Kingdom, SE5 9NU
Principal Investigator: Pratik Choudhary, MBBS, MRCP         
Sponsors and Collaborators
Medtronic Diabetes
  More Information

Responsible Party: Medtronic Diabetes Identifier: NCT01991548     History of Changes
Other Study ID Numbers: CEP284
Study First Received: November 18, 2013
Last Updated: November 21, 2013

Keywords provided by Medtronic Diabetes:
Insulin pump

Additional relevant MeSH terms:
Diabetes Mellitus
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Hypoglycemic Agents
Physiological Effects of Drugs processed this record on April 21, 2017