The purpose of this study is to: * evaluate the safety, tolerability, efficacy, pharmacokinetics (PK), and pharmacodynamics (PD) of single ascending doses of ALN-2232 in patients with obesity * evaluate the safety, tolerability, efficacy, PK, and PD of multiple doses of ALN-2232 in patients with obesity * evaluate the safety, tolerability, efficacy, PK, and PD of multiple doses of ALN-2232 co-initiated with tirzepatide in patients with obesity
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
156
ALN-2232 will be administered subcutaneously (SC)
Placebo will be administered SC
Tirzepatide will be administered SC
Clinical Trial Site
Montreal, Canada
RECRUITINGPart A: Frequency of Adverse Events (AEs)
Time frame: Up to 12 months
Part B: Percent Change from Baseline in Body Weight
Time frame: Baseline up to Month 6
Part C: Percent Change from Baseline in Body Weight
Time frame: Baseline up to Month 6
Part A: Change from Baseline in Proteins in Adipose Tissue
Time frame: Baseline up to Month 12
Part A: Area Under the Plasma Concentration-time Curve (AUC) of ALN-2232 in Plasma
Time frame: Predose and up to 15 days postdose
Part A: Maximum Observed Plasma Concentration (Cmax) of ALN-2232 in Plasma
Time frame: Predose and up to 15 days postdose
Part A: Time to Maximum Plasma Concentration (Tmax) of ALN-2232 in Plasma
Time frame: Predose and up to 15 days postdose
Part A: Fraction of ALN-2232 excreted in urine
Time frame: Predose and up to 8 days postdose (fe)
Part A: Percent Change from Baseline in Body Weight
Time frame: Baseline up to Month 12
Part B and Part C: Concentrations of ALN-2232 in Plasma
Time frame: Predose and up to 6 months postdose
Part B and Part C: Percent Change from Baseline in Body Weight
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Time frame: Baseline up to Month 12
Part B and Part C: Change from Baseline in Body Fat Mass and Lean Mass
Measured by dual x-ray absorptiometry (DXA)
Time frame: Baseline up to Month 12