Trial Outcomes & Findings for Study of MGL-3196 in Patients With Heterozygous Familial Hypercholesterolemia (HeFH) (NCT NCT03038022)

NCT ID: NCT03038022

Last Updated: 2025-12-23

Results Overview

LDL-C was determined by ultracentrifugation or direct measure. Least-squares (LS) mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

116 participants

Primary outcome timeframe

Baseline up to Week 12

Results posted on

2025-12-23

Participant Flow

Participant milestones

Participant milestones
Measure
MGL-3196
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured pharmacokinetic (PK) assessments of MGL-3196 exposure.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Overall Study
STARTED
78
38
Overall Study
Received at Least 1 Dose of Study Drug
78
38
Overall Study
COMPLETED
72
36
Overall Study
NOT COMPLETED
6
2

Reasons for withdrawal

Reasons for withdrawal
Measure
MGL-3196
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured pharmacokinetic (PK) assessments of MGL-3196 exposure.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Overall Study
Withdrawal by Subject
2
0
Overall Study
Adverse Event
4
2

Baseline Characteristics

Study of MGL-3196 in Patients With Heterozygous Familial Hypercholesterolemia (HeFH)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
MGL-3196
n=78 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=38 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Total
n=116 Participants
Total of all reporting groups
Sex: Female, Male
Male
39 Participants
n=9 Participants
22 Participants
n=6 Participants
61 Participants
n=9 Participants
Sex: Female, Male
Female
39 Participants
n=9 Participants
16 Participants
n=6 Participants
55 Participants
n=9 Participants
Age, Categorical
<=18 years
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Age, Categorical
Between 18 and 65 years
56 Participants
n=9 Participants
25 Participants
n=6 Participants
81 Participants
n=9 Participants
Age, Categorical
>=65 years
22 Participants
n=9 Participants
13 Participants
n=6 Participants
35 Participants
n=9 Participants
Age, Continuous
56.4 years
STANDARD_DEVIATION 12.38 • n=9 Participants
59.1 years
STANDARD_DEVIATION 11.33 • n=6 Participants
57.3 years
STANDARD_DEVIATION 12.06 • n=9 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
78 Participants
n=9 Participants
38 Participants
n=6 Participants
116 Participants
n=9 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Race (NIH/OMB)
Asian
0 Participants
n=9 Participants
1 Participants
n=6 Participants
1 Participants
n=9 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Race (NIH/OMB)
White
78 Participants
n=9 Participants
37 Participants
n=6 Participants
115 Participants
n=9 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Baseline Low-density Lipoprotein Cholesterol (LDL-C) (Direct measure or ultracentrifugation)
131.4 mg/dL
STANDARD_DEVIATION 47.24 • n=9 Participants
137.0 mg/dL
STANDARD_DEVIATION 57.53 • n=6 Participants
133.3 mg/dL
STANDARD_DEVIATION 50.65 • n=9 Participants
Statin Use
Atorvastatin
40 Participants
n=9 Participants
16 Participants
n=6 Participants
56 Participants
n=9 Participants
Statin Use
Rosuvastatin
34 Participants
n=9 Participants
17 Participants
n=6 Participants
51 Participants
n=9 Participants
Statin Use
Pravastatin
1 Participants
n=9 Participants
1 Participants
n=6 Participants
2 Participants
n=9 Participants
Statin Use
None
3 Participants
n=9 Participants
4 Participants
n=6 Participants
7 Participants
n=9 Participants

PRIMARY outcome

Timeframe: Baseline up to Week 12

Population: Modified Intent-to-Treat (mITT) population: all participants who were randomized in the study, received at least 2 weeks of study drug, and had a valid lipid measurement at Week 2 or later.

LDL-C was determined by ultracentrifugation or direct measure. Least-squares (LS) mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Percent Change in LDL-C From Baseline To Week 12
-10.6 percent change
Standard Error 2.59
8.2 percent change
Standard Error 3.71

SECONDARY outcome

Timeframe: Baseline up to Week 12

Population: Safety population: all participants who were randomized in the study and received at least 1 dose of study drug.

T4 was assessed at each study visit.

Outcome measures

Outcome measures
Measure
MGL-3196
n=78 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=38 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change From Baseline to Week 12 of Free Thyroxine (T4)
-0.268 ng/dL
Standard Error 0.0130
0.009 ng/dL
Standard Error 0.0185

SECONDARY outcome

Timeframe: Baseline up to Week 12

Population: Safety population: all participants who were randomized in the study and received at least 1 dose of study drug.

Free T3 was assessed at each study visit.

Outcome measures

Outcome measures
Measure
MGL-3196
n=78 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=38 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change From Baseline to Week 12 of Free Triiodothyronine (T3)
-0.04 ng/L
Standard Error 0.038
0.10 ng/L
Standard Error 0.054

SECONDARY outcome

Timeframe: Baseline up to Week 12

Population: Safety population: all participants who were randomized in the study and received at least 1 dose of study drug.

TSH was assessed at each study visit.

Outcome measures

Outcome measures
Measure
MGL-3196
n=78 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=38 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change From Baseline to Week 12 of Thyrotropin (TSH)
-0.027 mIU/L
Standard Error 0.0690
0.114 mIU/L
Standard Error 0.0987

SECONDARY outcome

Timeframe: Baseline up to Week 12

Population: Safety population: all participants who were randomized in the study and received at least 1 dose of study drug.

TBG was assessed at all study visits except the Screening Visit.

Outcome measures

Outcome measures
Measure
MGL-3196
n=78 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=38 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change From Baseline to Week 12 of Thyroxine Binding Globulin (TBG)
-2.31 mg/L
Standard Error 0.256
-0.44 mg/L
Standard Error 0.367

SECONDARY outcome

Timeframe: Baseline up to Week 12

Population: Safety population: all participants who were randomized in the study and received at least 1 dose of study drug.

Reverse T3 was assessed at each study visit.

Outcome measures

Outcome measures
Measure
MGL-3196
n=78 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=38 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change From Baseline to Week 12 of Reverse Triiodothyronine (T3)
-4.36 ng/dL
Standard Error 0.392
-0.58 ng/dL
Standard Error 0.554

SECONDARY outcome

Timeframe: Baseline up to Week 12

Non-HDL-C were determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Percent Change in Non-high-density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 12
-12.0 percent change
Standard Error 2.41
7.5 percent change
Standard Error 3.46

SECONDARY outcome

Timeframe: Baseline up to Week 12

Population: mITT population: all participants who were randomized in the study, received at least 2 weeks of study drug, and had a valid lipid measurement at Week 2 or later.

Triglycerides were determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Percent Change In Triglycerides From Baseline To Week 12
-18.3 percent change
Standard Error 3.24
7.2 percent change
Standard Error 4.64

SECONDARY outcome

Timeframe: Baseline up to Week 12

Population: mITT population: all participants who were randomized in the study, received at least 2 weeks of study drug, and had a valid lipid measurement at Week 2 or later.

Lp(a) was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Percent Change In Lipoprotein(a) (Lp[a]) From Baseline To Week 12
-21.8 percent change
Standard Error 2.87
4.4 percent change
Standard Error 4.11

SECONDARY outcome

Timeframe: Baseline up to Week 12

Apolipoprotein CIII was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Percent Change in Apolipoprotein CIII From Baseline to Week 12
-19.3 percent change
Standard Error 2.9
3.4 percent change
Standard Error 4.1

SECONDARY outcome

Timeframe: Baseline up to Week 12

Population: mITT population: all participants who were randomized in the study, received at least 2 weeks of study drug, and had a valid lipid measurement at Week 2 or later.

ApoB was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Percent Change In Apolipoprotein B (ApoB) From Baseline To Week 12
-14.2 percent change
Standard Error 1.66
3.8 percent change
Standard Error 2.37

SECONDARY outcome

Timeframe: Baseline up to Week 12

The ApoB/ApoA1 ratio was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Percent Change in Apolipoprotein B/Apolipoprotein A1 (ApoB/ApoA1) Ratio From Baseline to Week 12
-5.0 percent change
Standard Error 1.8
4.2 percent change
Standard Error 2.5

SECONDARY outcome

Timeframe: Baseline up to Week 12

The Cholesterol/HDL-C Ratio was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Percent Change In Cholesterol/HDL-C Ratio From Baseline to Week 12
-3.5 percent change
Standard Error 2.3
6.3 percent change
Standard Error 3.3

SECONDARY outcome

Timeframe: Baseline up to Week 12

LDL-C was determined by ultracentrifugation or direct measure . Least-squares (LS) mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Absolute Change in LDL-C From Baseline to Week 12
-17.0 mg/dL
Standard Error 3.31
9.9 mg/dL
Standard Error 4.74

SECONDARY outcome

Timeframe: Baseline to Week 2 and Week 4

LDL-C was determined by ultracentrifugation or direct measure. Least-squares (LS) mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

Outcome measures

Outcome measures
Measure
MGL-3196
n=76 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Percent Change From Baseline in LDL-C at Week 2 and Week 4 in Patients in the 100 mg and the 60 mg Groups
Week 2
-16.6 percent change
Interval -22.6 to -10.6
1.6 percent change
Interval -3.2 to 6.5
Percent Change From Baseline in LDL-C at Week 2 and Week 4 in Patients in the 100 mg and the 60 mg Groups
Week 4
-9.8 percent change
Interval -16.3 to -3.4
0.1 percent change
Interval -5.2 to 5.4

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: mITT Population

The effect on percent change in LDL-C from baseline to Week 12 was determined by patient exposure category (higher/lower). Patients taking MGL-3196 were categorized into lower and higher exposure groups. Patients in the higher exposure group must either have had estimated Week 2 AUC ≥5,000 mg∙h/L, or if Week 2 AUC \<5,000 mg∙h/L but Week 4 pre-dose concentration \>1.5 ng/mL (if on 60 mg MGL-3196). All other patients were in the lower exposure group.

Outcome measures

Outcome measures
Measure
MGL-3196
n=37 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=39 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
n=37 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Percent Change in LDL-C From Baseline to Week 12 by Systemic Exposure Category
-8.1 percent change
Standard Error 3.71
-13.0 percent change
Standard Error 3.62
8.2 percent change
Standard Error 3.71

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for LDL Particles.

Outcome measures

Outcome measures
Measure
MGL-3196
n=74 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=35 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12: Total LDL Particles
1223 nmol/L
Standard Deviation 334
1428 nmol/L
Standard Deviation 475

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for Small LDL Particles.

Outcome measures

Outcome measures
Measure
MGL-3196
n=74 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=35 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12: Small LDL Particles
655 nmol/L
Standard Deviation 214
760 nmol/L
Standard Deviation 265

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for Intermediate LDL Particles.

Outcome measures

Outcome measures
Measure
MGL-3196
n=74 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=35 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12: Intermediate LDL Particles
157 nmol/L
Standard Deviation 96
168 nmol/L
Standard Deviation 184

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for Large LDL Particles.

Outcome measures

Outcome measures
Measure
MGL-3196
n=74 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=35 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12: Large LDL Particles
411 nmol/L
Standard Deviation 247
501 nmol/L
Standard Deviation 302

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for VLDL and Chylomicron Particles.

Outcome measures

Outcome measures
Measure
MGL-3196
n=74 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=35 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12:Total Very Low-Density Lipoprotein (VLDL) and Chylomicron Particles
24.8 nmol/L
Standard Deviation 18.5
37.3 nmol/L
Standard Deviation 24.7

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for Total HDL Particles.

Outcome measures

Outcome measures
Measure
MGL-3196
n=74 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=35 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12: Total HDL Particles
29.79 micromol/L
Standard Deviation 4.699
30.92 micromol/L
Standard Deviation 5.940

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for LDL Particle size.

Outcome measures

Outcome measures
Measure
MGL-3196
n=74 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=35 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12: LDL Particle Size
20.94 nm
Standard Deviation 0.546
20.89 nm
Standard Deviation 0.549

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for VLDL Particle Size.

Outcome measures

Outcome measures
Measure
MGL-3196
n=67 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=34 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12: VLDL Particle Size
52.27 nm
Standard Deviation 7.063
51.33 nm
Standard Deviation 8.801

SECONDARY outcome

Timeframe: Baseline up to Week 12

The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for HDL Particle Size.

Outcome measures

Outcome measures
Measure
MGL-3196
n=74 Participants
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=35 Participants
Participants administered matching oral placebo once daily for 12 weeks.
Placebo
Participants administered matching oral placebo once daily for 12 weeks.
Mean Change in Lipid Particle Concentration From Baseline To Week 12: HDL Particle Size
9.30 nm
Standard Deviation 0.589
9.19 nm
Standard Deviation 0.586

Adverse Events

MGL-3196

Serious events: 0 serious events
Other events: 65 other events
Deaths: 0 deaths

Placebo

Serious events: 1 serious events
Other events: 28 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
MGL-3196
n=78 participants at risk
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=38 participants at risk
Participants administered matching oral placebo once daily for 12 weeks.
General disorders
Pyrexia
0.00%
0/78 • Baseline (Day 1) up to Week 12
2.6%
1/38 • Baseline (Day 1) up to Week 12

Other adverse events

Other adverse events
Measure
MGL-3196
n=78 participants at risk
Participants randomized to MGL-3196 received 100 mg daily during the first 2 weeks, 60 mg daily during Weeks 2 to 4, and then either 60 or 100 mg daily to Week 12 based on Week 2 measured PK assessments of MGL-3196 exposure.
Placebo
n=38 participants at risk
Participants administered matching oral placebo once daily for 12 weeks.
Investigations
Hepatic enzyme increased
9.0%
7/78 • Baseline (Day 1) up to Week 12
0.00%
0/38 • Baseline (Day 1) up to Week 12
Infections and infestations
Nasopharyngitis
12.8%
10/78 • Baseline (Day 1) up to Week 12
15.8%
6/38 • Baseline (Day 1) up to Week 12
Nervous system disorders
Headache
12.8%
10/78 • Baseline (Day 1) up to Week 12
15.8%
6/38 • Baseline (Day 1) up to Week 12
Nervous system disorders
Dizziness
5.1%
4/78 • Baseline (Day 1) up to Week 12
10.5%
4/38 • Baseline (Day 1) up to Week 12
General disorders
Fatigue
9.0%
7/78 • Baseline (Day 1) up to Week 12
5.3%
2/38 • Baseline (Day 1) up to Week 12
Skin and subcutaneous tissue disorders
Night Sweats
0.00%
0/78 • Baseline (Day 1) up to Week 12
5.3%
2/38 • Baseline (Day 1) up to Week 12
Injury, poisoning and procedural complications
Fall
2.6%
2/78 • Baseline (Day 1) up to Week 12
5.3%
2/38 • Baseline (Day 1) up to Week 12
Psychiatric disorders
Insomnia
1.3%
1/78 • Baseline (Day 1) up to Week 12
5.3%
2/38 • Baseline (Day 1) up to Week 12
Investigations
Aspartate aminotransferase increased
10.3%
8/78 • Baseline (Day 1) up to Week 12
0.00%
0/38 • Baseline (Day 1) up to Week 12
Gastrointestinal disorders
Diarrhea
19.2%
15/78 • Baseline (Day 1) up to Week 12
10.5%
4/38 • Baseline (Day 1) up to Week 12
Gastrointestinal disorders
Nausea
20.5%
16/78 • Baseline (Day 1) up to Week 12
5.3%
2/38 • Baseline (Day 1) up to Week 12
Gastrointestinal disorders
Abdominal Pain
6.4%
5/78 • Baseline (Day 1) up to Week 12
5.3%
2/38 • Baseline (Day 1) up to Week 12
Gastrointestinal disorders
Flatulence
6.4%
5/78 • Baseline (Day 1) up to Week 12
0.00%
0/38 • Baseline (Day 1) up to Week 12
Gastrointestinal disorders
Vomiting
5.1%
4/78 • Baseline (Day 1) up to Week 12
2.6%
1/38 • Baseline (Day 1) up to Week 12
Gastrointestinal disorders
Abdominal Pain Upper
5.1%
4/78 • Baseline (Day 1) up to Week 12
0.00%
0/38 • Baseline (Day 1) up to Week 12
Musculoskeletal and connective tissue disorders
Myalgia
6.4%
5/78 • Baseline (Day 1) up to Week 12
13.2%
5/38 • Baseline (Day 1) up to Week 12
Musculoskeletal and connective tissue disorders
Arthralgia
2.6%
2/78 • Baseline (Day 1) up to Week 12
7.9%
3/38 • Baseline (Day 1) up to Week 12
Musculoskeletal and connective tissue disorders
Muscle Spasms
5.1%
4/78 • Baseline (Day 1) up to Week 12
0.00%
0/38 • Baseline (Day 1) up to Week 12
Investigations
Alanine aminotransferase increased
10.3%
8/78 • Baseline (Day 1) up to Week 12
0.00%
0/38 • Baseline (Day 1) up to Week 12

Additional Information

Thomas Hare

Madrigal Pharmaceuticals, Inc.

Phone: 267-268-7800

Results disclosure agreements

  • Principal investigator is a sponsor employee The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release up to 45 days prior to submission and can embargo communications regarding study results for a period that is more than 90 days from the date that the communication is submitted to the sponsor for review. The sponsor cannot require changes to the communication and cannot unilaterally extend the embargo.
  • Publication restrictions are in place

Restriction type: OTHER