Type 1 DiabetesPhase 1NCT01792323
Absorption of Insulin Following Subcutaneous Bolus Administration With Different Bolus Durations
A Phase 1 study testing Insulin LISPRO in people with Type 1 Diabetes, run by Medical University of Graz at 1 site in Austria.
Trial summary
To cover meal-related insulin requirements, insulin pumps allow insulin to be delivered at high rates over a short period of time (bolus delivery). The length of this period (bolus duration) usually depends on the chosen bolus size and on the used insulin pump model. Read more about this study
- Who is it for?
- Ages 18 to 60 years
- Conditions the study is for
- Type 1 Diabetes
- What is being tested?
- Insulin LISPRO
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteAustria
- Study dates
- Aug 2011to Jan 2014
- Phase
- Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 60 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- Informed consent obtained after being advised of the nature of the study
- Male or female aged 18-60 years (both inclusive)
- Type 1 diabetes treated with multiple daily insulin injection or continuous subcutaneous insulin infusion for 12 months
- Fasting C-peptide < 0.3nmol/L
- Body mass index 20.0-30.0 kg/m² (both inclusive)
- HbA1c < 10%
Who cannot join
- Female of childbearing potential who is pregnant, breast-feeding or intend to become pregnant or is not using adequate contraceptive methods
- Skin pathology or condition prohibiting needle insertion/insulin administration as judged by the investigator
- History of bleeding disorder
- Current participation in another clinical study
- Use of insulin lispro >2 weeks
- Significant acute or chronic illness that might interfere with subject safety or integrity of results as judged by the investigator
Show all 20Show fewer
- Smoker (defined as >5 cigarettes/d)
- Lipodystrophy
- Current treatment with systemic (oral or i.v.) corticosteroids, monoamine oxidase (MAO) inhibitors, non-selective beta-blockers, growth hormone, herbal products or non-routine vitamins. Furthermore, thyroid hormones are not allowed unless the use of these has been stable during the past 3 months
- Significant history of alcoholism or drug abuse or a positive result in urine drug/alcohol screen
- Study Day Exclusion Criteria:
- Strenuous exercise within the last 24 hours prior to the clamp visit
- Non-fasting (i.e. consumption of food or beverages, other than water, later than 22:00 hours the evening before the visit) except if slight intake of rapidly absorbable carbohydrates has been necessary in order to prevent hypoglycaemia
- Injection of long-acting insulin (e.g. insulin glargine or insulin detemir) later than 12:00 hours (noon), 2 days before the clamp visit
- Injection of NPH insulin or other intermediate-acting insulin products later than 12:00 hours (noon) on the day before the clamp visit
- Injection of any short acting insulin (aspart, lispro, glulisine) or more than 6 IU of human insulin between 22:00 hours and 03:00 hours the night before the clamp visit
- Injection of any insulin later than 03:00 hours the night before the clamp visit
- Infusion of any insulin later than 03:00 hours the night before the clamp visit for subjects using continuous subcutaneous insulin infusion (CSII)
- Positive result of alcohol breath test
- Any medical condition that, in the opinion of the Investigator, could interfere with insulin pharmacokinetics and/or glucose metabolism
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Subcutaneous Insulin Absorption Following Bolus Administrations With an Insulin Pump - Comparison of Bolus Administrations With Different Bolus Durations
To cover meal-related insulin requirements, insulin pumps allow insulin to be delivered at high rates over a short period of time (bolus delivery). The length of this period (bolus duration) usually depends on the chosen bolus size and on the used insulin pump model. This study will evaluate the impact of different bolus durations (i.e., durations commonly employed in commercially available insulin pumps: 2 and 40 seconds for delivering 1 Unit of insulin) on the pharmacokinetic and pharmacodynamic properties of an rapid-acting insulin analogue.
Objective: To evaluate in type 1 diabetic patients the pharmacodynamics and pharmacokinetics of rapid-acting insulin (insulin lispro) administered as subcutaneous boluses with different bolus durations.
Read more
Study design: Single-center, randomized, controlled, two-arm cross-over intervention study
Population: Twenty type 1 diabetic subjects
Intervention: The investigational treatment is the subcutaneous administration of insulin lispro either as one bolus of 15 IU over a period of 30s or as one bolus of 15 IU over a period of 10 min. Plasma samples to assess pharmacodynamic and pharmacokinetic properties will be taken during an 8-hour clamp experiment. Patients will undergo both investigational treatments in a randomized order; between the two clamp visits there will be a wash-out period of 5-21 days.
Main study endpoint: Time to maximum glucose infusion rate
- Conditions
- Type 1 Diabetes
- Being tested
- Insulin LISPRO
- Keywords
- insulin pump therapy, insulin bolus, rapid acting insulin, insulin lispro, pharmacodynamics, pharmacokinetics, glucose clamp
- Medical subject headings
- Diabetes Mellitus, Type 1
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Insulin LISPRODrug
Administration of 15 IU of insulin lispro over a period of 30 seconds
| Study group | Role | What they receive |
|---|---|---|
| 1 bolus of insulin lispro with short bolus duration | Experimental | Subcutaneous administration of insulin lispro as a bolus of 15 IU over a period of 30 seconds Receives: Drug: Insulin LISPRO |
| 1 bolus of insulin lispro with long bolus duration | Experimental | Subcutaneous administration of insulin lispro as a bolus of 15 IU over a period of 10 minutes Receives: Drug: Insulin LISPRO |
What is being measured
The primary outcome is the main question the study is designed to answer.
tmax(GIR); time to maximum glucose infusion rate
Measured: 8 hours
Secondary outcomes (1)
GIRmax, maximum glucose infusion rate
Measured: 8 hours
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Feb 2013 (estimated)
- Study startAug 2011
- Primary completionNov 2011
- Study completionJan 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Type 1 DiabetesStudies of the same condition, open and under way.
- More trials run by Medical University of GrazThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical University of Graz
- Sponsor type
- University, hospital or other
- Collaborators
- European Commission
- Responsible party
- Principal investigator, Pieber Thomas, MD, Medical University of Graz
- Investigators
- Thomas R Pieber, MD, Principal investigator, Medical University of Graz, Internal Medicine, Endocrinology and Metabolism
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01792323
- Sponsor's protocol ID
- CIPHER-Clamp
- Status last verified
- Feb 2014
- First submitted
- 13 Feb 2013
- Last updated
- 26 Feb 2014
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 26 Feb 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Subcutaneous Insulin Absorption Following Bolus Administrations With an Insulin Pump - Comparison of Bolus Administrations With Different Bolus Durations
- ClinicalTrials.gov ID
- NCT01792323
- Acronym / sponsor ID
- CIPHER-Clamp
- Conditions
- Type 1 Diabetes
- Keywords
- insulin pump therapy, insulin bolus, rapid acting insulin, insulin lispro, pharmacodynamics, pharmacokinetics, glucose clamp
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants (actual)
- Lead sponsor
- Medical University of GrazUniversity, hospital or other
- Collaborators
- European Commission
- Study start
- Aug 2011
- Primary completion
- Nov 2011 (actual)
- Study completion
- Jan 2014 (actual)
- First posted
- 15 Feb 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To cover meal-related insulin requirements, insulin pumps allow insulin to be delivered at high rates over a short period of time (bolus delivery). The length of this period (bolus duration) usually depends on the chosen bolus size and on the used insulin pump model. This study will evaluate the impact of different bolus durations (i.e., durations commonly employed in commercially available insulin pumps: 2 and 40 seconds for delivering 1 Unit of insulin) on the pharmacokinetic and pharmacodynamic properties of an rapid-acting insulin analogue.
Objective: To evaluate in type 1 diabetic patients the pharmacodynamics and pharmacokinetics of rapid-acting insulin (insulin lispro) administered as subcutaneous boluses with different bolus durations.
Study design: Single-center, randomized, controlled, two-arm cross-over intervention study
Population: Twenty type 1 diabetic subjects
Intervention: The investigational treatment is the subcutaneous administration of insulin lispro either as one bolus of 15 IU over a period of 30s or as one bolus of 15 IU over a period of 10 min. Plasma samples to assess pharmacodynamic and pharmacokinetic properties will be taken during an 8-hour clamp experiment. Patients will undergo both investigational treatments in a randomized order; between the two clamp visits there will be a wash-out period of 5-21 days.
Main study endpoint: Time to maximum glucose infusion rate
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 bolus of insulin lispro with short bolus duration | Experimental | Drug: Insulin LISPROSubcutaneous administration of insulin lispro as a bolus of 15 IU over a period of 30 seconds |
| 1 bolus of insulin lispro with long bolus duration | Experimental | Drug: Insulin LISPROSubcutaneous administration of insulin lispro as a bolus of 15 IU over a period of 10 minutes |
Who may qualify
- Ages
- 18 to 60 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- Informed consent obtained after being advised of the nature of the study
- Male or female aged 18-60 years (both inclusive)
- Type 1 diabetes treated with multiple daily insulin injection or continuous subcutaneous insulin infusion for 12 months
- Fasting C-peptide < 0.3nmol/L
- Body mass index 20.0-30.0 kg/m² (both inclusive)
Key exclusion criteria (20 listed)
- Female of childbearing potential who is pregnant, breast-feeding or intend to become pregnant or is not using adequate contraceptive methods
- Skin pathology or condition prohibiting needle insertion/insulin administration as judged by the investigator
- History of bleeding disorder
- Current participation in another clinical study
- Use of insulin lispro >2 weeks
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Insulin LISPROAdministration of 15 IU of insulin lispro over a period of 30 seconds | Drug | 1 bolus of insulin lispro with long bolus duration, 1 bolus of insulin lispro with short bolus duration |
Primary outcome
tmax(GIR); time to maximum glucose infusion rate
Time frame: 8 hours
1 secondary outcome
GIRmax, maximum glucose infusion rate
Time frame: 8 hours
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Feb 2014.
- Medical University of GrazLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Thomas R Pieber, MD principal investigator
Medical University of Graz, Internal Medicine, Endocrinology and Metabolism
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Insulin LISPRO in people with Type 1 Diabetes, run by Medical University of Graz at 1 site in Austria.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 26 Feb 2014. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Austria. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
tmax(GIR); time to maximum glucose infusion rate (time frame: 8 hours). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Feb 2014; AzTrials last refreshed its copy on 8 Nov 2026.