A Study To Examine The Efficacy And Safety Of Pramlintide+Metreleptin In Obese Subjects

Status

Terminated

Phase

Phase 2

Enrollment

213 participants (actual)

Sponsor

AstraZeneca · Industry

Design

Randomized · Double masking

Countries

1 country

United States

Start

Jan 2011

Primary completion

Sept 2011

Completion

Sept 2011

First posted

8 Nov 2010 (estimated)

Last update posted

15 Apr 2015 (estimated)

Conditions

Obesity

Following screening, eligible subjects will be enrolled into a 6-week Low Calorie Diet (LCD) lead-in period. Subjects who lose at least 2% of their body weight at the end of the 6-week LCD lead-in period will be randomized to 1 of 2 treatment arms (pramlintide+metreleptin or placebo) to begin a 16-week treatment period during which the effect on body weight of treatment with pramlintide+metreleptin will be compared to placebo. Following the 16 week blinded core treatment period, subjects will discontinue study medication for a period of 12 weeks. Following the 12 week off-drug follow-up period, subjects in both groups will initiate a 12 week open-label treatment period with Pramlintide+Metreleptin. During the 12 week off-drug and 12 week open label treatment periods, subjects will continue to participate in a Lifestyle Intervention (LSI) program.

• Experimental

  Group A

  Pramlintide+Metreleptin

• Placebo comparator

  Group B

  Placebo

1. Number of Participants With Treatment Emergent Adverse Events and Number With Post Treatment Adverse Events - Intent to Treat Population

   Time frame · Day 1 up to Month 6 Follow-Up

   Registry description

   Treatment-Emergent Adverse Events are defined as those with an onset date and time on or after the first dose of randomized study medication and on or before the last dose of randomized study medication. Post-treatment Adverse Events are defined as those with an onset date after the date of last dose (imputed if not available) of randomized study medication. Participants experiencing multiple episodes of a given adverse event are counted once.

2. Change From Baseline to Week 2, and to Follow up Months 2, 4, 6 in Fasting Leptin Concentration - Intent to Treat Population

   Time frame · Baseline to Month 6 Follow Up

   Registry description

   Participants who received metreleptin were analyzed; no placebo treated participants were analyzed. Baseline was Day 1 measurement or the last measurement taken prior to first dose of randomized study medication, if Day 1 measure was missing. Leptin was measured in nanograms per milliliter (ng/mL).

3. Number of Participants With Anti-leptin Antibodies Who Received Metreleptin - Intent to Treat Population

   Time frame · Week 1 to Month 6 Follow-Up

   Registry description

   Anti-leptin antibodies measured at Weeks 1 and 2 of drug treatment, early termination visit, and at Months 2, 4, and 6 post treatment follow-up in participants who received metreleptin.

4. Number of Participants With Neutralizing Activity to Metreleptin at Early Termination or During Post Treatment Follow-Up - Intent to Treat Population Who Received Metreleptin

   Time frame · Baseline to Month 6 Follow-Up

   Registry description

   In vitro assays were conducted to determine if neutralizing activity to metreleptin developed in participants treated with at least one dose of the drug during the study. Baseline is Day 1 of the Randomization Period, prior to administration of metreleptin.

5. Number of Participants With Hematology and Urinalysis Laboratory Values of Potential Clinical Importance - Intent to Treat Population

   Time frame · Screening to 6 Month Follow-Up

   Registry description

   Criteria for laboratory values of potential clinical importance for obese and overweight (BMI \>= 25 kg/m\^2) participants: Platelets high (H) \>500,000/µL; low (L) \<75,000/µL. Hematocrit males \<36%, females \<30%. Hemoglobin males \<12 g/dL, females \<10 g/dL. White blood cell count (WBC) H \>18,000/µL; L \<1,500/µL. Urine protein H \>= 3+ or \>= 500 mg/dL. Urine glucose H \>= 3+ or \>= 500 mg/dL. Urine ketones \>= 3+ or Large.

6. Number of Participants With Chemistry Laboratory Value of Potential Clinical Importance - Intent to Treat Population

   Time frame · Screening to Month 6 Follow-Up

   Registry description

   Criteria for laboratory values of potential clinical importance for obese and overweight (BMI \>= 25 kg/m\^2) participants: Total bilirubin High (H) \> 2 mg/dL; Plasma or serum glucose fasting or non-fasting H \> 200 mg/dL, low (L) \< 60 mg/dL; Albumin L \<2.5 g/dL; Creatine kinase H \> 3\*Upper limit of Normal (ULN); Sodium L \<130 milliequivalents per liter (mEq/L), H \> 150 mEq/L; potassium L\<3.0 mEq/L, H\> 5.5 mEq/L; bicarbonate L\<18 mEq/L, H\>35 mEq/L;calcium L \<8mg/dL, H\> 11 mg/dL; triglycerides H\> 500 mg/dL; Cholesterol L \< 100 mg/dL, H \> 350 mg/dL; Alkaline phosphatase H \> 3\*ULN; Gamma-glutamyltransferase H\>3\*ULN; creatinine males \> 1.6 mg/dL, females \> 1.4 mg/dL; alanine aminotransferase H \> 3\*ULN; aspartate aminotransferase H \> 3\*ULN; urea nitrogen H \> 45 mg/dL; uric acid males \> 10.0 mg/dL, females \> 8.0 mg/dL; Phosphorus L \< 1.0 mg/dL H \> 6.0 mg/dL.

7. Mean Change From Baseline to Month 6 Follow-Up in Blood Pressure - Intent to Treat Population

   Time frame · Baseline to Month 6 Follow-Up

   Registry description

   Baseline was Day 1 measurement or the last measurement taken prior to first dose of randomized study medication, if Day 1 measure was missing. Follow-up was up to 6 months post treatment. Blood pressure included systolic and diastolic pressures measured in millimeters of mercury (mmHg).

8. Mean Change From Baseline to Month 6 Follow-Up in Heart Rate - Intent to Treat Population

   Time frame · Baseline up to Month 6 Follow-Up

   Registry description

   Baseline was Day 1 measurement or the last measurement taken prior to first dose of randomized study medication, if Day 1 measure was missing. Heart rate was measured in beats per minute (beats/min).

9. Mean Change From Baseline to 6 Month Follow-Up in Fasting Plasma Glucose - Intent to Treat Population

   Time frame · Baseline to 6 Month Follow-Up

   Registry description

   Baseline was Day 1 measurement or the last measurement taken prior to first dose of randomized study medication, if Day 1 measure was missing. Follow up was 6 months post last dose of randomized study medication. Fasting glucose measured in milligrams per deciliter (mg/dL).

10. Mean Change From Baseline to Month 6 Follow-Up in Insulin - Intent to Treat Population

    Time frame · Baseline up to Month 6 Follow-Up

    Registry description

    Baseline was Day 1 measurement or the last measurement taken prior to first dose of randomized study medication, if Day 1 measure was missing. Follow up was 6 months post last dose of randomized study medication. Insulin measured in milliunits per liter (mU/L).

11. Mean Change From Baseline to Month 6 Follow-Up in Lipids - Intent to Treat Population

    Time frame · Baseline up to Month 6 Follow-Up

    Registry description

    Baseline was Day 1 measurement or the last measurement taken prior to first dose of randomized study medication, if Day 1 measure was missing. Follow up was 6 months post last dose of randomized study medication. Lipids measured included total cholesterol, high density lipoprotein (HDL) cholesterol, low density lipoprotein (LDL) cholesterol, and triglycerides. Lipids were measured in milligrams per deciliter (mg/dL).

No study cites this trial.