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Trial ยท NCT04541186

Study to Explore the Efficacy and Safety of BIO89-100 (Pegozafermin) in Participants With Severe Hypertriglyceridemia

NCT04541186, Phase 2, Completed, 89bio, Inc.; results first posted 2024-07-25

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Study to Explore the Efficacy and Safety of BIO89-100 (Pegozafermin) in Participants With Severe Hypertriglyceridemia. Trials, record NCT04541186. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04541186

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Study to Explore the Efficacy and Safety of BIO89-100 (Pegozafermin) in Participants With Severe Hypertriglyceridemia
NCT number
NCT04541186
Status
Completed
Phases
Phase 2
Enrollment
86 participants, actual
Lead sponsor
89bio, Inc.
Conditions
Severe Hypertriglyceridemia
Interventions
Pegozafermin, Placebo
First posted
2020-09-09
Last updated
2024-07-25
Results first posted
2024-07-25
Limitations and caveats
The study did not separately evaluate the response to pegozafermin in participants who were on and who were not on concurrent fibrate therapy due to small sample size in the Fibrate Expansion cohort.

Source ClinicalTrials.gov

Registered outcomes8

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercent Change From Baseline to Week 8 in Serum Triglyceride (TG)Baseline, Week 8
SecondaryNumber of Participants Who Achieved TG <500 mg/dL at Week 8Week 8
Secondary
Percent Change From Baseline to Week 8 in Non-high-density Lipoprotein Cholesterol (Non-HDL-C), Apolipoprotein B100 (ApoB), Low-density Lipoprotein Cholesterol (LDL-C), and High-density Lipoprotein Cholesterol (HDL-C)
Baseline, Week 8Least Squares Means were calculated using mixed-model repeated measures (MMRM).
SecondaryPercent Change From Baseline to Week 8 in Very Low-density Lipoprotein Cholesterol (VLDL-C) and VLDL-TGBaseline, Week 8
SecondaryPercent Change in Baseline to Week 8 in Fasting Plasma Glucose, Adiponectin, and Body WeightBaseline, Week 8Least Squares Mean was calculated using MMRM.
SecondaryPercent Change From Baseline to Week 8 in Liver Fat as Assessed by Magnetic Resonance Imaging - Whole Liver Proton Density Fat Fraction (MRI-PDFF)Baseline, Week 8Least Squares Mean was calculated using analysis of covariance (ANCOVA).
SecondaryPercent Change From Baseline to Week 8 in High-sensitivity C-reactive Protein (hsCRP)Baseline, Week 8
SecondaryPercent Change From Baseline to Week 8 in Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST)Baseline, Week 8Least Squares Mean was calculated using MMRM.

Outcomes8

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercent Change From Baseline to Week 8 in Serum Triglyceride (TG)Baseline, Week 8
FAS: Participants who received at least 1 dose of study drug, had a baseline and at least 1 post-baseline TG measurement not including EOS visit. Here, 'Overall number of participants analyzed' = participants evaluable for this outcome measure. As pre-specified in the SAP, the sample size in each arm (by dose group) was insufficient (under powered) to effectively evaluate differences in efficacy by dose, therefore, efficacy analysis was performed using total pegozafermin and placebo groups.
percent change from BaselineMEDIAN
SECONDARYNumber of Participants Who Achieved TG <500 mg/dL at Week 8Week 8
FAS: Participants who received at least 1 dose of study drug, had a baseline and at least 1 post-baseline TG measurement not including EOS visit. Here, 'Overall number of participants analyzed' = participants evaluable for this outcome measure. As pre-specified in the SAP, the sample size in each arm (by dose group) was insufficient (under powered) to effectively evaluate differences in efficacy by dose, therefore, efficacy analysis was performed using total pegozafermin and placebo groups.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARY
Percent Change From Baseline to Week 8 in Non-high-density Lipoprotein Cholesterol (Non-HDL-C), Apolipoprotein B100 (ApoB), Low-density Lipoprotein Cholesterol (LDL-C), and High-density Lipoprotein Cholesterol (HDL-C)
Baseline, Week 8
FAS: Participants who received at least 1 dose of study drug, had a baseline and at least 1 post-baseline TG measurement not including EOS visit. Here, 'Overall number of participants analyzed' = participants evaluable for this outcome measure. As pre-specified in the SAP, the sample size in each arm (by dose group) was insufficient (under powered) to effectively evaluate differences in efficacy by dose, therefore, efficacy analysis was performed using total pegozafermin and placebo groups.
percent change from BaselineLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline to Week 8 in Very Low-density Lipoprotein Cholesterol (VLDL-C) and VLDL-TGBaseline, Week 8
FAS: Participants who received at least 1 dose of study drug, had a baseline and at least 1 post-baseline TG measurement not including EOS visit. Here, 'Overall number of participants analyzed' = participants evaluable for this outcome measure. As pre-specified in the SAP, the sample size in each arm (by dose group) was insufficient (under powered) to effectively evaluate differences in efficacy by dose, therefore, efficacy analysis was performed using total pegozafermin and placebo groups.
percent change from BaselineMEDIAN
SECONDARYPercent Change in Baseline to Week 8 in Fasting Plasma Glucose, Adiponectin, and Body WeightBaseline, Week 8
FAS: Participants who received at least 1 dose of study drug, had a baseline and at least 1 post-baseline TG measurement not including EOS visit. Here, 'Overall number of participants analyzed' = participants evaluable for this outcome measure. As pre-specified in the SAP, the sample size in each arm (by dose group) was insufficient (under powered) to effectively evaluate differences in efficacy by dose, therefore, efficacy analysis was performed using total pegozafermin and placebo groups.
percent change from BaselineLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline to Week 8 in Liver Fat as Assessed by Magnetic Resonance Imaging - Whole Liver Proton Density Fat Fraction (MRI-PDFF)Baseline, Week 8
All participants in the FAS who had baseline and a follow-up MRI-PDFF assessment. Here, 'Overall number of participants analyzed' = participants evaluable for this outcome measure. As pre-specified in the SAP, the sample size in each arm (by dose group) was insufficient (under powered) to effectively evaluate differences in efficacy by dose, therefore, efficacy analysis was performed using total pegozafermin and placebo groups.
percent change from BaselineLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline to Week 8 in High-sensitivity C-reactive Protein (hsCRP)Baseline, Week 8
FAS: Participants who received at least 1 dose of study drug, had a baseline and at least 1 post-baseline TG measurement not including EOS visit. Here, 'Overall number of participants analyzed' = participants evaluable for this outcome measure. As pre-specified in the SAP, the sample size in each arm (by dose group) was insufficient (under powered) to effectively evaluate differences in efficacy by dose, therefore, efficacy analysis was performed using total pegozafermin and placebo groups.
percent change from BaselineMEDIAN
SECONDARYPercent Change From Baseline to Week 8 in Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST)Baseline, Week 8
FAS: Participants who received at least 1 dose of study drug, had a baseline and at least 1 post-baseline TG measurement not including EOS visit. Here, 'Overall number of participants analyzed' = participants evaluable for this outcome measure. As pre-specified in the SAP, the sample size in each arm (by dose group) was insufficient (under powered) to effectively evaluate differences in efficacy by dose, therefore, efficacy analysis was performed using total pegozafermin and placebo groups.
percent change from BaselineLEAST_SQUARES_MEAN

Results by group30

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percent Change From Baseline to Week 8 in Serum Triglyceride (TG)Pegozafermin-57.33Inter-Quartile Range -69.07 to -32.31percent change from Baseline
Percent Change From Baseline to Week 8 in Serum Triglyceride (TG)Placebo-11.85Inter-Quartile Range -23.22 to 7.88percent change from Baseline
Number of Participants Who Achieved TG <500 mg/dL at Week 8Pegozafermin51Participants
Number of Participants Who Achieved TG <500 mg/dL at Week 8Placebo5Participants
Percent Change From Baseline to Week 8 in Non-high-density Lipoprotein Cholesterol (Non-HDL-C), Apolipoprotein B100 (ApoB), Low-density Lipoprotein Cholesterol (LDL-C), and High-density Lipoprotein Cholesterol (HDL-C)
PegozaferminNon-HDL-C-18.29Standard Error 2.943percent change from Baseline
Percent Change From Baseline to Week 8 in Non-high-density Lipoprotein Cholesterol (Non-HDL-C), Apolipoprotein B100 (ApoB), Low-density Lipoprotein Cholesterol (LDL-C), and High-density Lipoprotein Cholesterol (HDL-C)
PlaceboNon-HDL-C-0.57Standard Error 5.586percent change from Baseline
Percent Change From Baseline to Week 8 in Non-high-density Lipoprotein Cholesterol (Non-HDL-C), Apolipoprotein B100 (ApoB), Low-density Lipoprotein Cholesterol (LDL-C), and High-density Lipoprotein Cholesterol (HDL-C)
PegozaferminApoB-10.51Standard Error 2.238percent change from Baseline
Percent Change From Baseline to Week 8 in Non-high-density Lipoprotein Cholesterol (Non-HDL-C), Apolipoprotein B100 (ApoB), Low-density Lipoprotein Cholesterol (LDL-C), and High-density Lipoprotein Cholesterol (HDL-C)
PlaceboApoB1.07Standard Error 4.309percent change from Baseline
Percent Change From Baseline to Week 8 in Non-high-density Lipoprotein Cholesterol (Non-HDL-C), Apolipoprotein B100 (ApoB), Low-density Lipoprotein Cholesterol (LDL-C), and High-density Lipoprotein Cholesterol (HDL-C)
PegozaferminLDL-C10.44Standard Error 4.654percent change from Baseline
Percent Change From Baseline to Week 8 in Non-high-density Lipoprotein Cholesterol (Non-HDL-C), Apolipoprotein B100 (ApoB), Low-density Lipoprotein Cholesterol (LDL-C), and High-density Lipoprotein Cholesterol (HDL-C)
PlaceboLDL-C8.72Standard Error 9.018percent change from Baseline

Participant flow50

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Main StudySTARTEDPegozafermin 9 mg QW16
Main StudySTARTEDPegozafermin 18 mg QW17
Main StudySTARTEDPegozafermin 27 mg QW16
Main StudySTARTEDPegozafermin 36 mg Q2W16
Main StudySTARTEDPlacebo15
Main StudySafety Analysis SetPegozafermin 9 mg QW12
Main StudySafety Analysis SetPegozafermin 18 mg QW21
Main StudySafety Analysis SetPegozafermin 27 mg QW15
Main StudySafety Analysis SetPegozafermin 36 mg Q2W16
Main StudySafety Analysis SetPlacebo15

Adverse events285

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherInjection site reactionGeneral disordersPegozafermin 9 mg QW112
otherInjection site reactionGeneral disordersPegozafermin 18 mg QW221
otherInjection site reactionGeneral disordersPegozafermin 27 mg QW118
otherInjection site reactionGeneral disordersPegozafermin 36 mg Q2W216
otherInjection site reactionGeneral disordersPlacebo018
otherInjection site erythemaGeneral disordersPegozafermin 9 mg QW012
otherInjection site erythemaGeneral disordersPegozafermin 18 mg QW121
otherInjection site erythemaGeneral disordersPegozafermin 27 mg QW218
otherInjection site erythemaGeneral disordersPegozafermin 36 mg Q2W116
otherInjection site erythemaGeneral disordersPlacebo018

Adverse event totals15

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPegozafermin 9 mg QW012
Total, all-cause mortalityPegozafermin 18 mg QW021
Total, all-cause mortalityPegozafermin 27 mg QW018
Total, all-cause mortalityPegozafermin 36 mg Q2W016
Total, all-cause mortalityPlacebo018
Total, other adverse eventsPegozafermin 9 mg QW712
Total, other adverse eventsPegozafermin 18 mg QW1321
Total, other adverse eventsPegozafermin 27 mg QW1318
Total, other adverse eventsPegozafermin 36 mg Q2W716
Total, other adverse eventsPlacebo918

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
37355760RESULT

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons1

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

Comparison
Pegozafermin vs Placebo: Number of Participants Who Achieved TG <500 mg/dL at Week 8

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT04541186

GET https://conductscience.org/api/trials/v1/NCT04541186/results?page=2