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TerminatedPhase 2Results posted

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

A Randomized, Double-Blind, Placebo-Controled, Multicenter Study To Examine The Efficacy And Safety Of Pramlintide+Metreleptin In Obese Subjects Following A Low-Calorie Diet Lead-In

Lead sponsor

AstraZeneca

Asset

Pramlintide

Subcutaneous · Amylin analog

Listed sites

18

Recruiting sites

Enrollment

213

actual

Study population

Obesity / overweight

Key I/E criterion

BMI 35-45

Primary endpoints

Treatment-emergent AEs (any)Leptin, changeImmunogenicity (ADA)

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT01235741
Org study IDDFA104

Timeline

Milestones

Study first posted2010-11-08estimated
Results first posted2013-12-09estimated
Last update posted2015-04-15estimated
Study start2011-01 (month precision)
Primary completion2011-09actual (month precision)
Study completion2011-09actual (month precision)

Assets

Investigational agents

Study populations

Who this study enrolls

Obesity / overweight

Eligibility

Who can enroll

Minimum age18 Years
Maximum age65 Years
SexAll
Healthy volunteersNot accepted

Inclusion criteria

Is obese with a BMI ≥35 to ≤45 kg/m2.
Has stable body weight (not varying by >5% within 3 months prior to study start).
Meets certain requirements with respect to concomitant medications.
Has not smoked or used nicotine-containing products for at least 12 months prior to study start.

Exclusion criteria

Has not been enrolled in a weight loss program within 2 months prior to study start.

Endpoints (12)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Coverage by outcome category

Safety / tolerability / PK
5
Cardiometabolic biomarkers
4
Glycemic / diabetes
2
Weight & body composition
1

Weight & body composition

1 endpoint
Secondary/protocol endpoint

Percent Change From Baseline to Week 1 and From Baseline to Month 6 Follow-up in Body Weight - Intent to Treat Population

Time frame:Baseline up to Month 6 Follow-Up

Body weight, % change

percent change from baseline, improvement

Posted result

GroupValue (mean), percentage of change in weight95% CI
PlaceboWeek 1-0.34
6 Month Follow-Up-0.02
Pramlintide + MetreleptinWeek 1-0.26
6 Month Follow-Up-1.80

Glycemic / diabetes

2 endpoints
Primary/protocol endpoint

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

Fasting glucose, change

change from baseline, improvement

LOINC 1558-6

Posted result

GroupValue (mean), mg/dL95% CI
Placebo6.8
Pramlintide + Metreleptin-1.0
Primary/protocol endpoint

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

Time frame:Baseline up to Month 6 Follow-Up

change from baseline, improvement

Posted result

GroupValue (mean), mU/L95% CI
Placebo3.41
Pramlintide + Metreleptin3.46

Cardiometabolic biomarkers

4 endpoints
Primary/protocol endpoint

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

Leptin, change

change from baseline, improvement

Posted result

GroupValue (mean), ng/mL95% CI
Pramlintide + MetreleptinChange from baseline to Week 2 of treatment223.38
Change from baseline to Month 2 Follow up15.46
Change from baseline to Month 4 Follow up20.08
Month 6 Follow up10.70
Primary/protocol endpoint

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

Time frame:Baseline to Month 6 Follow-Up

change from baseline, improvement

Posted result

GroupValue (mean), mmHg95% CI
PlaceboSystolic Blood Pressure4.3
Diastolic Blood Pressure2.7
Pramlintide + MetreleptinSystolic Blood Pressure3.1
Diastolic Blood Pressure2.7
Primary/protocol endpoint

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

Heart rate, change

change from baseline, improvement

Posted result

GroupValue (mean), beats/min95% CI
Placebo1.2
Pramlintide + Metreleptin1.2
Primary/protocol endpoint

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

Time frame:Baseline up to Month 6 Follow-Up

change from baseline, improvement

Posted result

GroupValue (mean), mg/dL95% CI
PlaceboTotal Cholesterol21.7
HDL cholesterol7.7
LDL cholesterol14.0
Triglycerides10.4
Pramlintide + MetreleptinTotal Cholesterol14.7
HDL cholesterol6.6
LDL cholesterol9.6
Triglycerides3.0

Safety / tolerability / PK

5 endpoints
Primary/protocol endpoint

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

Treatment-emergent AEs (any)

event count, event

Posted result

GroupValue (number), participants95% CI
On Treatment Placebo6
On Treatment Pramlintide + Metreleptin13
Post Treatment Placebo Arm13
Post Treatment Pramlintide + Metreleptin Arm16
Primary/protocol endpoint

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

Time frame:Week 1 to Month 6 Follow-Up

Immunogenicity (ADA)

threshold achievement, event

Posted result

GroupValue (number), participants95% CI
Pramlintide + MetreleptinWeek 10
Week 21
Early Termination9
Month 2 Follow-Up15
Month 4 Follow-Up10
Month 6 Follow-Up8
Primary/protocol endpoint

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

Immunogenicity (ADA)

threshold achievement, event

Posted result

GroupValue (number), participants95% CI
Pramlintide + Metreleptin0
Primary/protocol endpoint

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

threshold achievement, event

Posted result

GroupValue (number), participants95% CI
PlaceboHematocrit0
Hemoglobin0
Glucose in Urine0
Pramlintide + MetreleptinHematocrit1
Hemoglobin1
Glucose in Urine1
Primary/protocol endpoint

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

Time frame:Screening to Month 6 Follow-Up

threshold achievement, event

componentstotal bilirubin high, glucose high or low, albumin low, creatine kinase high, sodium high or low, potassium high or low, bicarbonate high or low, calcium high or low, triglycerides high, cholesterol high or low, alkaline phosphatase high

Posted result

GroupValue (number), participants95% CI
PlaceboCreatine Kinase2
Urate0
Bilirubin0
Pramlintide + MetreleptinCreatine Kinase3
Urate2
Bilirubin1

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 1, 2026
Endpoint classificationDelfa endpoint taxonomy v2 (May 13, 2026)
Results tableClinicalTrials.gov results section

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.