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Type 2 Diabetes MellitusPhase 1/2NCT00894322

A Study to Examine the Pharmacokinetics, Tolerability, Safety and Efficacy of Exenatide Once Weekly Suspension

A Phase 1/2 study testing exenatide once weekly in people with Type 2 Diabetes Mellitus, run by AstraZeneca at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is designed to evaluate the pharmacokinetics, tolerability, and safety of exenatide once weekly suspension in both healthy subjects and in subjects with type 2 diabetes. The study will also evaluate efficacy in the type 2 diabetes patients. Read more about this study

Who is it for?
Ages 19 to 75 years
Conditions the study is for
Type 2 Diabetes Mellitus
What is being tested?
exenatide once weekly
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
65 participants
Where
1 siteUnited States
Study dates
Apr 2009to Aug 2009
Phase
Phase 1/2
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 19 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Cohort 1:
  • Is 19 to 65 years old
  • Has a body mass index (BMI) of 23 kg/m2 to 35 kg/m2, inclusive, at study start
  • Cohort 2:
  • Is 19 to 75 years old
  • Has been diagnosed with type 2 diabetes mellitus
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  • Has HbA1c of 7.1% to 10.0%, inclusive, at study start
  • Has a body mass index (BMI) of 25 kg/m2 to 45 kg/m2, inclusive, at study start
  • Has been treated with diet and exercise alone or with a stable regimen of metformin, a TZD, or a combination of metformin and a TZD, for a minimum of 2 months prior to study start
  • Either is not treated with or has been on a stable treatment regimen with any of the following medications for a minimum of 2 months prior to study start:
  • Hormone replacement therapy (female subjects)
  • Oral contraceptives (female subjects)
  • Antihypertensive agents
  • Lipid-lowering agents
  • Thyroid replacement therapy
  • Antidepressant agents

Who cannot join

  • Cohort 1:
  • Has a personal history of diabetes mellitus (including impaired glucose tolerance, impaired fasting glucose, or gestational diabetes)
  • Has received any investigational drug within 30 days (or 5 half-lives of the investigational drug, whichever is greater) prior to study start
  • Has ever been exposed to exenatide (BYETTA, exenatide once weekly, or any other formulation of exenatide) or any GLP 1 analog
  • Cohort 2:
  • Has received any investigational drug within 30 days (or 5 half-lives of the investigational drug, whichever is greater) prior to study start
Show all 13Show fewer
  • Has ever been exposed to exenatide (BYETTA, exenatide once weekly, or any other formulation of exenatide) or any GLP 1 analog
  • Has been treated, is currently being treated, or is expected to require or undergo treatment with any of the following treatment-excluded medications:
  • Any DPP-4 inhibitor or sulfonylurea (SU) within 3 months prior to study start
  • Alpha glucosidase inhibitor, meglitinide, nateglinide, or pramlintide (SYMLIN®) within 30 days prior to study start
  • Insulin within 2 weeks prior to study start or for more than 1 week within 3 months prior to study start
  • Systemic corticosteroids by oral, intravenous, or intramuscular route; or potent, inhaled, or intrapulmonary (including ADVAIR®) steroids known to have a high rate of systemic absorption
  • Prescription or over-the-counter weight loss medications within 3 months prior to study start

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Research Site

    Lincoln, Nebraska

Other trials in United States

About this study

Official title: A Two-Cohort, Single- and Repeat Dose Study to Examine the Pharmacokinetics, Tolerability, and Safety of Ready to Use Exenatide Once Weekly in Healthy Subjects and in Subjects With Type 2 Diabetes Mellitus

This study is designed to evaluate the pharmacokinetics, tolerability, and safety of exenatide once weekly suspension in both healthy subjects and in subjects with type 2 diabetes. The study will also evaluate efficacy in the type 2 diabetes patients. Development of this exenatide once weekly presentation would eliminate the need to reconstitute the product prior to use.

Being tested
exenatide once weekly, Placebo
Keywords
diabetes, exenatide once weekly, Byetta, Amylin, Lilly
Medical subject headings
Diabetes Mellitus, Type 2, Diabetes Mellitus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • exenatide once weeklyDrug

    subcutaneous injection, 10.0 mg, single injection

  • exenatide once weeklyDrug

    subcutaneous injection, 2.0 mg, once a week for 12 weeks

  • PlaceboOther

    subcutaneous injection, volume equivalent to Cohort 2 experimental intervention, once a week for 12 weeks

Study groups in NCT00894322
Study groupRoleWhat they receive
Cohort 1: Healthy ParticipantsExperimentalA single 10-mg dose of exenatide once weekly suspension given to healthy participants via 3 subcutaneous (SC) injections at Day 1.
Receives: Drug: exenatide once weekly
Cohort 2: Diabetes ParticipantsExperimentalOn Day 1, participants with type 2 diabetes mellitus treated with diet and exercise alone or with a stable regimen of metformin, thiazolidinedione (TZD), or a combination of metformin or TZD were randomized to receive weekly injections of exenatide suspension for 12 weeks.
Receives: Drug: exenatide once weekly
Cohort 2: Diabetes Participants PlaceboPlacebo comparatorOn Day 1, participants with type 2 diabetes mellitus treated with diet and exercise alone or with a stable regimen of metformin, thiazolidinedione (TZD), or a combination of metformin or TZD were randomized to receive weekly injections of medium-chain triglycerides (MCT)-diluent placebo for 12 weeks.
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Area Under the Curve (AUC) for Single Dose of 10 mg Exenatide (Cohort 1) in Healthy Participants in the Pharmacokinetic Evaluable Population

    Cohort 1: Blood samples for the assessment of plasma exenatide were collected at time = -15, 60, 90, 120, 180, 240, 360, and 480 minutes relative to study medication injection at time = 0 on Day 1 and the mean is presented below. At all visits following the single injection, a single blood sample was collected for assessment of exenatide concentrations. AUC was measured in picograms * hours per milliliter (pg*hr/mL). Exenatide was measured using a validated enzyme-linked immunosorbent assay (ELISA). AUC calculated using linear trapezoidal method from time x to time y; AUC (0-8h) and (0-tlast) are presented below. Pharmacokinetic (PK) evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements [not less than (<) lower limits of quantification (LLOQ)] from Day 1 to Week 12 and had reliable PK data.

    Measured: Day 1, Week 12

  2. Maximum Concentration (Cmax) for Single Dose of 10 mg Exenatide (Cohort 1) in Healthy Participants in the Pharmacokinetic Evaluable Population

    Cohort 1: Blood samples for the assessment of plasma exenatide were collected at time = -15, 60, 90, 120, 180, 240, 360, and 480 minutes relative to study medication injection at time = 0 on Day 1 and the mean is presented below. At all visits following the single injection, a single blood sample was collected for assessment of exenatide concentrations. Cmax was measured in picograms per milliliter (pg/mL). Exenatide concentration was measured using a validated enzyme-linked immunosorbent assay (ELISA). PK evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements [not less than (<) lower limits of quantification (LLOQ)] from Day 1 to Week 12 for the evaluation of the PK characteristics of plasma exenatide and had reliable PK data. Cmax (0-8h) and (0-tlast) are presented below.

    Measured: Day 1, Week 12

  3. Time to Maximum Concentration (Tmax) for Single Dose of 10 mg Exenatide (Cohort 1) in Healthy Participants in the Pharmacokinetic Evaluable Population

    Cohort 1: Blood samples for the assessment of plasma exenatide were collected at time(t) = -15, 60, 90, 120, 180, 240, 360, and 480 minutes relative to study medication injection at time = 0 on Day 1 an the mean is presented below. At all visits following the single injection, a single blood sample was collected for assessment of exenatide concentrations. Tmax was measured in hours and Tmax (0-8h) and (0-tlast) are presented below. Exenatide concentration was measured using a validated enzyme-linked immunosorbent assay (ELISA). PK evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements [not less than (<) lower limits of quantification (LLOQ)] and had reliable PK data.

    Measured: Day 1, Week 12

  4. Number of Participants With Treatment Emergent Adverse Events (TEAEs), Injection Site TEAEs, Serious Adverse Events (SAEs), Deaths, and Withdrawals Due to AEs in Cohort 1 and Cohort 2 in Intent to Treat (ITT) Population

    Treatment emergent (TE)=occurs during or after treatment with study drug. Adverse Event (AE)=any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not have a causal relationship with treatment. SAE=a medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency/abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. Participants experiencing multiple episodes of a given AE are counted once. Injection site AEs: adverse events that existed prior to Day 1 and worsened after the first administration at Day 1, or occurred after the first administration at Day 1 through Week 12, or after Study Termination if considered by investigator to be clinically significant.

    Measured: Day 1 to Week12

  5. Number of Participants With Concomitant Medications in Cohort 1 and Cohort 2 in ITT Population

    Concomitant medications are defined as those medications received on or after the date of the first injection on Day 1, including prior medications that continued past Day 1 and new concomitant medications. Participants may be counted in more than one medication class and no more than once in each class. Categories by Anatomical Therapeutic Chemical (ATC) classification using the World Health Organization (WHO) Drug Dictionary version C1, 01 March 2009. As per protocol, all participants in Cohort 1 could receive up to 2 anti-emetic medications approximately 30 minutes prior to the exenatide.

    Measured: Day 1 to 12 weeks

  6. Mean Change From Baseline to End of Study in Sitting Diastolic and Systolic Blood Pressure in Cohorts 1 and 2 in ITT Population

    In Cohort 1, sitting blood pressures were obtained at Screening (Visit 1), Day 1 (Visit 2), Weeks 1-11 (Visits 3-13), Week 12 (Visit 14), and at early termination. Blood pressures (diastolic and systolic) were measured in millimeters of mercury (mmHg). In Cohort 2, sitting blood pressures were obtained at Screening (Visit 1), Day 1 (Visit 2), Weeks 1-10 (Visits 3-12), Week 11 (Visit 15), Week 12 (Visit 16) and at early termination. Baseline was defined as last measurement prior to first injection of study drug.

    Measured: Day 1 to Week 12

  7. Mean Change From Baseline to End of Study in Sitting Heart Rate in Cohorts 1 and 2 in ITT Population

    In Cohort 1, sitting heart rates were obtained at Screening (Visit 1), Day 1 (Visit 2), Weeks 1-11 (Visits 3-13), Week 12 (Visit 14), and at early termination. Heart rate was measured in beats per minute (bpm). In Cohort 2, sitting heart rates were obtained at Screening (Visit 1), Day 1 (Visit 2), Weeks 1-10 (Visits 3-12), Week 11 (Visit 15), Week 12 (Visit 16) and at early termination. Baseline was defined as last measurement prior to first injection of study drug.

    Measured: Day 1 to Week 12

  8. Number of Participants With Hematology and Serum Chemistry Laboratory Values of Potential Clinical Importance in Cohorts 1 and 2 in ITT Population

    Abbreviations: Upper Limit of Normal (ULN); milligram per deciliter (mg/dL); units per liter (U/L); micro liters (µL); creatine kinase (CK); gamma-glutamyltransferase (G-GT). Normal ranges = Hematocrit: 40.6-52.3% (male), 35.3-47.0 (female); Platelets 155-361*10^3/µL(male/female); Calcium: 8.6-10.4 mg/dL (male/female); CK: 43-350 U/L (male), 28-207 U/L (female); G-GT: 7-62 U/L (male/female); Glucose 73-105 mg/dL (male/female); Lipase 14-70 U/L (male/female); Uric acid: 3.5-7.8 mg/dL (male), 2.3-5.9 mg/dL (female). Blood samples for laboratories were collected at screening, Day 1, Weeks 4, 8, 12 or early termination. Value for potential clinical importance is presented in each category presented below.

    Measured: Day 1 to Week 12

  9. Antibody Titers for Participants With Treatment Emergent Positive Antibodies to Exenatide in Participants Who Received Exenatide in Cohorts 1 and 2

    Serum titers of antibodies to exenatide were evaluated using a validated enzyme-linked immunosorbent assay (Covance Method No. ELISA-0308). Positive antibody to exenatide titer: observed at the indicated visit following a negative or missing titer at baseline, or a positive titer that has increased by at least 3 dilutions at the indicated visit from a detectable baseline. Baseline=Day 1. Negative titers were assigned a value of 1 in order to calculate geometric mean. Geometric mean of reportable titers, by study week, are presented below.

    Measured: Day 1 to Week 12

  10. Area Under the Curve (AUC) for 2 mg Exenatide (Cohort 2) in Participants With Diabetes in the Pharmacokinetic Evaluable Population

    Cohort 2: Blood samples for the assessment of plasma exenatide were collected on Day 1, Weeks 2, 4, 6, 8, and 10. At Week 10, blood samples were collected at time = -15, 60, 90, 120, 180, 240, and 360 minutes relative to study medication injection at time = 0. AUC was measured in picograms * hours per milliliter (pg*hr/mL). Exenatide was measured using a validated enzyme-linked immunosorbent assay (ELISA). AUC calculated using linear trapezoidal method from time x to time y; AUC (0-6h) measured at Week 10, AUC (0-168h) steady state measured between Weeks 10 and 11, and AUC (0-tlast) for time interval between Weeks 10 and 12 (approximately336 hours) are presented below. PK evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements (not < LLOQ) from Day 1 to Week 12 and had reliable PK data.

    Measured: Week 10-11; Weeks 10 - 12

  11. Average Exenatide Concentration (Cave) of 2 mg Exenatide (Cohort 2) in Participants With Diabetes in the Pharmacokinetic Evaluable Population

    Cohort 2: Blood samples for the assessment of plasma exenatide were collected on Day 1, Weeks 2, 4, 6, 8, and 10. At Week 10, blood samples were collected at time = -15, 60, 90, 120, 180, 240, and 360 minutes relative to study medication injection at time = 0. At all visits following the single injection, a single blood sample was collected for assessment of exenatide concentrations. Cave(0-168h) and Cave(0-tlast) was the time-weighted mean concentration over the sampling period from time x to time y corresponding to AUC (0-168h), and AUC (0-tlast), respectively. Cave was measured in picograms per milliliter (pg/mL). Exenatide concentration was measured using a validated enzyme-linked immunosorbent assay (ELISA). PK evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements (not < LLOQ) from Day 1 to Week 12 and had reliable PK data.

    Measured: Week 10 - Week 11; Week 10 - Week 12

  12. Maximum Concentration (Cmax) for 2 mg Exenatide (Cohort 2) in Participants With Diabetes in the Pharmacokinetic Evaluable Population

    Cohort 2: Blood samples for the assessment of plasma exenatide were collected on Day 1, Weeks 2, 4, 6, 8, and 10. At Week 10, blood samples were collected at time = -15, 60, 90, 120, 180, 240, and 360 minutes relative to study medication injection at time = 0. Cmax was measured in pg/mL. Exenatide was measured using a validated enzyme-linked immunosorbent assay (ELISA). Cmax summarized at 0-6 h at Week 10, 0-168 h at Weeks 10-11, and 0-tlast at Weeks 10-12. PK evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements (not < LLOQ) from Day 1 to Week 12 and had reliable PK data.

    Measured: Week 10, Weeks 10-11, Weeks 10-12

  13. Time to Maximum Concentration (Tmax) of 2 mg Exenatide (Cohort 2) in Participants With Diabetes in Pharmacokinetic Evaluable Population

    Cohort 2: Blood samples for the assessment of plasma exenatide were collected on Day 1, Weeks 2, 4, 6, 8, and 10. At Week 10, blood samples were collected at time = -15, 60, 90, 120, 180, 240, and 360 minutes relative to study medication injection at time = 0. Tmax was measured in hours (h). Exenatide was measured using a validated ELISA. Tmax summarized at 0-6 h at Week 10, 0-168 h at Weeks 10-11, and 0-tlast at Weeks 10-12. PK evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements (not < LLOQ) from Day 1 to Week 12 and had reliable PK data.

    Measured: Week 10, Weeks 10-11, Weeks 10-12

Secondary outcomes (6)
  1. AUC (0 Hour to 168 Hour) for 10 mg Exenatide (Cohort 1) in Healthy Participants in the Pharmacokinetic Evaluable Population

    Cohort 1: Blood samples for the assessment of plasma exenatide were collected at time = -15, 60, 90, 120, 180, 240, 360, and 480 minutes relative to study medication injection at time = 0 on Day 1. At all visits following the single injection, a single blood sample was collected for assessment of exenatide concentrations. AUC (0-168 h) data represents average concentration rather than maximum concentration. Exenatide concentration was measured using a validated enzyme-linked immunosorbent assay (ELISA). AUC calculated using linear trapezoidal method from time x to time y and measured in pg*h/mL. PK evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements (not < LLOQ) from Day 1 to Week 12 and had reliable PK data.

    Measured: Day 1 to Week 1

  2. Average Exenatide Concentration (Cave) of 10 mg Exenatide (Cohort 1) in Healthy Participants in the Pharmacokinetic Evaluable Population

    Cohort 1: Blood samples for the assessment of plasma exenatide were collected at time = -15, 60, 90, 120, 180, 240, 360, and 480 minutes relative to study medication injection at time = 0 on Day 1. At all visits following the single dose, a single blood sample was collected for assessment of exenatide concentrations. Cave(0-168h) was the time-weighted mean concentration over the sampling period from time x to time y corresponding to AUC (0-168h) and was measured in picograms per milliliter (pg/mL). Exenatide concentration was measured using a validated enzyme-linked immunosorbent assay (ELISA). PK evaluable population consisted of all ITT participants who had at least 4 detectable plasma exenatide measurements [not less than (<) lower limits of quantification (LLOQ)] from Day 1 to Week 12 and had reliable PK data.

    Measured: Day 1 to Week 1

  3. Least Square Mean Change From Baseline in Hemoglobin A1c (HbA1c) to Week 12 in Participants With Diabetes (Cohort 2) in the ITT Population

    HbA1c was measured as a percent of hemoglobin at screening, Day 1, Weeks 4, 8, 12 or early termination. Last observation carried forward (LOCF) was applied to estimate missing values at post baseline timepoints. Baseline=Day 1, last measurement prior to first dose of study drug.

    Measured: Day 1 to Week 12

  4. Number of Participants Achieving HbA1c Less Than Equal to (<=) 6.5% and Less Than (<) 7% at Week 12 in Participants With Diabetes (Cohort 2) in the ITT Population

    HbA1c was measured as a percent of hemoglobin at screening, Day 1, Weeks 4, 8, 12 or early termination. LOCF was applied to estimate missing values at post baseline timepoints. Baseline=Day 1, last measurement prior to first dose of study drug.

    Measured: Week 12

  5. Mean Change From Baseline at Week 12 in Body Weight in Participants With Diabetes (Cohort 2) in the ITT Population

    Body weight was measured in kilograms (kg). Baseline was Day 1, last measurement prior to first dose of study drug. Body weight was measured at screening, Day 1, Weeks 4, 8, 12 or early termination and the LOCF approach was applied to estimate missing value at each post baseline timepoint.

    Measured: Baseline, Week 12

  6. Mean Change From Baseline at Week 12 in Fasting Plasma Glucose in Participants With Diabetes (Cohort 2) for the ITT Population

    Baseline was the last measurement at the screening visit. Fasting plasma glucose (FPG) was measured at screening, Day 1, Weeks 2, 4, 6, 8, 12, or early termination and reported in milligrams per deciliter (mg/dL).

    Measured: Baseline, Week 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 May 2009 (estimated)
  2. Study startApr 2009
  3. Primary completionAug 2009
  4. Study completionAug 2009

Resources

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00894322
Sponsor's protocol ID
BCB110
Status last verified
Aug 2015
First submitted
5 May 2009
Last updated
18 Sep 2015
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing exenatide once weekly in people with Type 2 Diabetes Mellitus, run by AstraZeneca 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 16 inclusion and 13 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 18 Sep 2015. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined 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.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 14 May 2014). 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?

Area Under the Curve (AUC) for Single Dose of 10 mg Exenatide (Cohort 1) in Healthy Participants in the Pharmacokinetic Evaluable Population (time frame: Day 1, Week 12). The study lists 13 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 18 Sep 2015.

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