Type 1 DiabetesNCT01684943
Selecting Insulin Analogs for Closed-Loop Control Using Multiplex Pharmacokinetic Profiling
A study testing Multiplex pharmacokinetic profiling and Continuous insulin monitoring in people with Type 1 Diabetes, run by Massachusetts General Hospital at 1 site in United States.
Trial summary
The investigators are doing this research study to compare the pharmacokinetics (PK) (rate of absorption) of insulin lispro (Humalog), insulin aspart (Novolog), and insulin glulisine (Apidra) within individual subjects. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Type 1 Diabetes
- What is being tested?
- Multiplex pharmacokinetic profiling and Continuous insulin monitoring
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 33 participants
- Where
- 1 siteUnited States
- Study dates
- Jul 2010to Dec 2017
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age 18 years or older with clinical type 1 diabetes for at least five years
- Diabetes managed using an insulin infusion pump and rapid- or very-rapid-acting insulins including insulin aspart (NovoLog), insulin lispro (Humalog), and insulin glulisine (Apidra).
- Ability to consume a sufficient amount of carbohydrates over 2-3 hours to cover 9 units of rapid acting insulin
Who cannot join
- Unable to provide informed consent
- Unable to comply with study procedures
- Inadequate venous access as determined by study nurse or physician at time of screening.
- Pregnancy
- History of gastric banding, gastric bypass, or other gastrointestinal condition that may prevent a subject from consuming a normal sized meal
- Hemoglobin <13.5 for men, < 12 for women
Trial locations and contacts
1 site in 1 country.
United States1 site
Massachusetts General Hospital
Boston, Massachusetts, 02114
About this study
The investigators are doing this research study to compare the pharmacokinetics (PK) (rate of absorption) of insulin lispro (Humalog), insulin aspart (Novolog), and insulin glulisine (Apidra) within individual subjects.
Additionally, the investigators will perform a preliminary feasibility evaluation of a minimally invasive continuous insulin monitoring (CIM) device and its use to derive PK parameters in human subjects.
- Conditions
- Type 1 Diabetes
- Being tested
- Multiplex pharmacokinetic profiling, Continuous insulin monitoring
- Keywords
- Pharmacokinetics
- 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.
Multiplex pharmacokinetic profilingOther
Continuous insulin monitoringOther
| Study group | Role | What they receive |
|---|---|---|
| Multiplex pharmacokinetic profiling | Experimental | Multiplex pharmacokinetic profiling of regular human insulin, insulin aspart, insulin lispro, insulin glulisine, and regular human insulin. All subjects participated in the single study arm and received injections of each type of insulin. Blood samples were drawn at intervals for pharmacokinetic profiling. Receives: Other: Multiplex pharmacokinetic profiling |
| Continuous insulin monitoring | Experimental | Continuous insulin monitoring (CIM) of insulin lispro. Some subjects participated in the CIM sub-study, which is distinct from the Multiplex Pharmacokinetic Profiling study. This intervention involved administering insulin lispro and monitoring pharmacokinetic profile of the drug using blood samples and an investigational continuous insulin monitoring system. Receives: Other: Continuous insulin monitoring |
What is being measured
The primary outcome is the main question the study is designed to answer.
For Multiplex PK Profiling: Aggregate Mean Difference in Tmax Between the Analog With Greatest and the Analog With the Least Value of Tmax for Individuals
The average difference in tmax between lispro and aspart in all participants
Measured: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300 minutes after dose
For Continuous Insulin Monitoring: Time to Maximum Plasma Insulin and Time to Maximum Continuous Insulin Monitoring Insulin
Measured: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300 minutes after dose
Secondary outcomes (4)
Multiplex PK: Average Baseline HbA1c Categorized According to Baseline Use of Insulin Analog Found to Have the Most Favorable PK Profile for Each Individual
Subjects with a difference in tmax between analogs will be categorized as follows: using insulin with best PK for them, using insulin with worst PK for them, or using insulin with intermediate PK for them. The average A1c for each of the three categories is reported.
Measured: Baseline
Multiplex PK: Count of Subjects With Difference in Tmax Between the Analog With Greatest and the Analog With the Least Value of Tmax That is > 25%
Measured: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300 minutes after dose
Multiplex PK: Average Baseline HbA1c Categorized According to Baseline Use of Insulin Analog With Tmax < 60 Minutes vs. Use of an Insulin Analog With Tmax > 60 Minutes for Each Individual
Subjects with a difference in tmax between analogs will be categorized as follows: using insulin with tmax less than or equal to 60 minutes or using insulin with tmax > 60 minutes. The average A1c per group is reported.
Measured: Baseline
Multiplex PK: Average Number of Hypoglycemia Events Over the Last Month at Baseline Categorized According to Baseline Use of Insulin Analog Found to Have the Most Favorable PK Profile for Each Individual
Subjects with a difference in tmax between analogs will be categorized as follows: using insulin with best PK for them, using insulin with worst PK for them, or using insulin with intermediate PK for them. The average number of hypoglycemic events per month per group is reported.
Measured: 1 month prior to study entry
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Sep 2012 (estimated)
- Study startJul 2010
- Primary completionSep 2016
- Study completionDec 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Type 1 DiabetesStudies of the same condition, open and under way.
- More trials run by Massachusetts General HospitalThe 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 N/A
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Model description
- All subjects participated in the single arm of the study. Some subjects participated in the continuous insulin monitoring sub-study in addition to the main protocol, or separate from the main protocol.
- Masking
- None (open label)
- Enrolment
- 33 participants (actual)
Sponsor and investigators
- Lead sponsor
- Massachusetts General Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Steven J. Russell, MD, PhD, Massachusetts General Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01684943
- Sponsor's protocol ID
- 2010P001005
- Status last verified
- Nov 2019
- First submitted
- 21 Aug 2012
- Last updated
- 12 Dec 2019
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- Individual data sharing
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 12 Dec 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Selecting Insulin Analogs for Closed-Loop Control Using Multiplex Pharmacokinetic Profiling
- ClinicalTrials.gov ID
- NCT01684943
- Acronym / sponsor ID
- 2010P001005
- Conditions
- Type 1 Diabetes
- Keywords
- Pharmacokinetics
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 33 participants (actual)
- Lead sponsor
- Massachusetts General HospitalUniversity, hospital or other
- Study start
- Jul 2010
- Primary completion
- Sep 2016 (actual)
- Study completion
- Dec 2017 (actual)
- First posted
- 13 Sep 2012 (estimated)
- Results
- Posted 12 Dec 2019
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The investigators are doing this research study to compare the pharmacokinetics (PK) (rate of absorption) of insulin lispro (Humalog), insulin aspart (Novolog), and insulin glulisine (Apidra) within individual subjects.
Additionally, the investigators will perform a preliminary feasibility evaluation of a minimally invasive continuous insulin monitoring (CIM) device and its use to derive PK parameters in human subjects.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- All subjects participated in the single arm of the study. Some subjects participated in the continuous insulin monitoring sub-study in addition to the main protocol, or separate from the main protocol.
| Arm | Type | Receives |
|---|---|---|
| Multiplex pharmacokinetic profiling | Experimental | Other: Multiplex pharmacokinetic profilingMultiplex pharmacokinetic profiling of regular human insulin, insulin aspart, insulin lispro, insulin glulisine, and regular human insulin. All subjects participated in the single study arm and received injections of each type of insulin. Blood samples were drawn at intervals for pharmacokinetic profiling. |
| Continuous insulin monitoring | Experimental | Other: Continuous insulin monitoringContinuous insulin monitoring (CIM) of insulin lispro. Some subjects participated in the CIM sub-study, which is distinct from the Multiplex Pharmacokinetic Profiling study. This intervention involved administering insulin lispro and monitoring pharmacokinetic profile of the drug using blood samples and an investigational continuous insulin monitoring system. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Age 18 years or older with clinical type 1 diabetes for at least five years
- Diabetes managed using an insulin infusion pump and rapid- or very-rapid-acting insulins including insulin aspart (NovoLog), insulin lispro (Humalog), and insulin glulisine (Apidra).
- Ability to consume a sufficient amount of carbohydrates over 2-3 hours to cover 9 units of rapid acting insulin
Key exclusion criteria (6 listed)
- Unable to provide informed consent
- Unable to comply with study procedures
- Inadequate venous access as determined by study nurse or physician at time of screening.
- Pregnancy
- History of gastric banding, gastric bypass, or other gastrointestinal condition that may prevent a subject from consuming a normal sized meal
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 |
|---|---|---|
| Multiplex pharmacokinetic profiling | Other | Multiplex pharmacokinetic profiling |
| Continuous insulin monitoring | Other | Continuous insulin monitoring |
Primary outcome
For Multiplex PK Profiling: Aggregate Mean Difference in Tmax Between the Analog With Greatest and the Analog With the Least Value of Tmax for Individuals
Time frame: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300 minutes after dose
The average difference in tmax between lispro and aspart in all participants
For Continuous Insulin Monitoring: Time to Maximum Plasma Insulin and Time to Maximum Continuous Insulin Monitoring Insulin
Time frame: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300 minutes after dose
4 secondary outcomes
Multiplex PK: Average Baseline HbA1c Categorized According to Baseline Use of Insulin Analog Found to Have the Most Favorable PK Profile for Each Individual
Time frame: Baseline
Multiplex PK: Count of Subjects With Difference in Tmax Between the Analog With Greatest and the Analog With the Least Value of Tmax That is > 25%
Time frame: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300 minutes after dose
Multiplex PK: Average Baseline HbA1c Categorized According to Baseline Use of Insulin Analog With Tmax < 60 Minutes vs. Use of an Insulin Analog With Tmax > 60 Minutes for Each Individual
Time frame: Baseline
Multiplex PK: Average Number of Hypoglycemia Events Over the Last Month at Baseline Categorized According to Baseline Use of Insulin Analog Found to Have the Most Favorable PK Profile for Each Individual
Time frame: 1 month prior to study entry
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Dec 2019.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Individual participant dataSharing planned: Yes
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Multiplex pharmacokinetic profiling and Continuous insulin monitoring in people with Type 1 Diabetes, run by Massachusetts General Hospital at 1 site in United States.
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 3 inclusion and 6 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 12 Dec 2019. 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 United States. 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.
Are results available for this study?
Yes. Results are posted in the registry (first posted 12 Dec 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
For Multiplex PK Profiling: Aggregate Mean Difference in Tmax Between the Analog With Greatest and the Analog With the Least Value of Tmax for Individuals (time frame: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300 minutes after dose). The study lists 2 primary outcomes in all. 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 12 Dec 2019.