A Phase 2 interventional study of ISIS 304801 and Placebo in Lipodystrophy, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-10-20.
Sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) · Phase 2, Interventional, and Treatment
Background:
Partial lipodystrophy is a deficiency of body fat in parts of the body (usually the arms and legs). People with partial lipodystrophy often get high blood triglyceride (fat) level, insulin resistance, diabetes and other problems. Researchers think the new drug ISIS 304801 can help treat health problems caused by partial lipodystrophy.
Objective:
To see if ISIS 304801 will improve blood fat (triglyceride levels), diabetes, and liver disease, and reduce some risks for heart disease caused by partial lipodystrophy.
Eligibility:
Adults at least 18 years old with partial lipodystrophy.
Design:
Participants will be screened during a 1-week stay at NIH. They will have:
Blood and urine tests
Physical exam.
Assignment to get either the study drug or placebo.
Instructions for how to inject the drug.
Body measurements.
Heart tests.
Participants will give themselves injections of the drug or placebo once a week at home. Some may test blood sugar by finger pricks. They will have monthly phone calls and nurse visits to take blood tests.
After 4 months, participants may continue the study for 1 year. All participants will get the study drug.
Participants will have study visits at NIH every 4 months. These may include:
Insulin sensitivity measurement: Insulin and sugar will be infused through 2 intravenous (IV) lines in the arms. Blood will be drawn.
Sugar and fat metabolism measured by IV infusions and blood tests.
Special x-ray scan to measure body fat.
Liquid meal then blood collected by IV catheter in the arm.
Magnetic resonance imaging scans.
Neck ultrasound.
Questionnaires.
Liver biopsy (optional)
Injection of heparin (a blood thinner) before a blood test.
After finishing the drug, participants will have 1 nurse visit and 1 visit to NIH.
...
Background:
Lipodystrophy is a rare disease of deficient adipose mass, characterized by severe hypertriglyceridemia as well as insulin resistance, diabetes mellitus, fatty liver disease, acute pancreatitis, and early cardiovascular events. Apolipoprotein C-III (apoC-III) regulates triglyceride metabolism, and apoC-III levels strongly correlate with serum triglycerides in a variety of patient populations. Patients with genetically low levels of apoC-III have lower triglycerides and reduced cardiovascular disease, while individuals with genetically elevated levels of apoC-III have higher triglycerides and increased non-alcoholic fatty liver disease and insulin resistance. Pharmacologic reduction of apoC-III using anti-sense oligonucleotides (ASOs) reduce triglycerides by \~60-70% in a tested patient populations.
Aim:
The purpose of this study is to determine if apoC-III reduction using an ASO to apoC-III (ISIS 304801) will reduce triglycerides and improve insulin resistance, diabetes, and hepatic steatosis in patients with lipodystrophy.
The primary hypothesis to be tested is:
ISIS 304801will reduce log10 fasting serum triglycerides.
Secondary and tertiary hypotheses to be tested are:
We will also explore the mechanism of action of apoC-III ASO by studying lipoprotein lipase activity and lipoprotein particle distribution.
Methods:
This study will enroll up to 20 patients with partial lipodystrophy with a goal of 10 study completers. The study will be conducted in two phases. The first is a 16-week, randomized, double-blind, placebo-controlled design. Subjects will be treated with ISIS 304801 at a target dose of 300 mg per week or placebo. Following this phase, all subjects will enter a 12 month open-label extension in which they will receive active drug. Patients who experience benefit (triglyceride lowering greater than or equal to 50%) may receive an additional 12 months of open-label drug (up to 24 months, total). Measurement of the primary outcome (serum triglycerides) and key secondary outcomes will be performed at baseline prior to the intervention, after 13 weeks (primary outcome only) or 16 weeks (primary and secondary outcomes) of blinded drug or placebo, and after an additional 4 months of active drug in subjects initially randomized to placebo.
163 studies on the registry are indexed under Lipodystrophy; 11 are open to participants now.
This study's enrollment of 5 is below the median of 46 across 119 interventional studies indexed under Lipodystrophy.
Browse Lipodystrophy studies →National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) is the lead sponsor of 529 studies on the registry; 54 are open to participants now.
Of its 79 completed or terminated interventional studies of FDA-regulated products, 50 (63%) have results posted.
Counted across the registry records on this site, refreshed daily.
OR
Clinical diagnosis of lipodystrophy based on deficiency of subcutaneous body fat in a partial fashion assessed by physical examination, and low skinfold thickness in anterior thigh by caliper measurement: men (less than or equal to 10mm) and women (less than or equal to 22mm), plus one of the following:
Genetic diagnosis of familial PL (e.g., mutations in LMNA, PPARG, AKT2, or PLIN1 genes) OR
Satisfy one of the following:
Note: Abstinence is only an effective method of birth control when this is the preferred and usual lifestyle of the patient. Periodic abstinence (e.g., calendar, ovulation, symptothermal, post-ovulation methods), declaration of abstinence for the duration of a trial and withdrawal are not acceptable methods of contraception.
EXCLUSION CRITERIA:
Any of the following laboratory values at enrollment:
Hepatic:
Renal:
Use of any of the following:
Placebo administered subcutaneously (SC)
Drug: Placebo
300 mg of study drug administered via SC
Drug: ISIS 304801
300 mg of ISIS 304801 administered as SC
Placebo administered via SC
Change in Log 10 Fasting Triglycerides.
Change from baseline to 16 weeks in log 10 fasting triglycerides
Time frame: Baseline and 16 weeks
Change in Lipolysis Rate (Glycerol)
Change in lipolysis rate measured using stable isotope tracers (Glycerol rate of appearance) (mg/kgLBM/min)
Time frame: Baseline and 16 weeks
Change in Lipolysis Rate (Palmitate)
Change in lipolysis rate measured using stable isotope tracers (Palmitate rate of appearance) measured in milligrams per kilogram lean body mass per minute (mg/kgLBM/min)
Time frame: Baseline and 16 weeks
Change From Baseline in Liver Volume
Change from baseline in hepatic steatosis (magnetic resonance spectroscopy) (mL)
Time frame: Baseline and 16 weeks
Change From Baseline in Hepatic Steatosis
Change from baseline in hepatic steatosis via magnetic resonance spectroscopy
Time frame: Baseline and 16 weeks
Change in Lipoprotein Lipase Activity
Lipoprotein lipase activity in plasma is measured using blood samples obtained 10 minutes after intravenous infusion of 60 units/kg of unfractionated heparin.
Time frame: Baseline and 16 weeks
Change in Total Body Insulin Sensitivity
Change in total body insulin sensitivity using the hyperinsulinemic euglycemic clamp (mg/kgLBM/min)
Time frame: Baseline and 16 weeks
Change in HbA1c
Change in hemoglobin A1c (HbA1c) (%)
Time frame: Baseline and 16 weeks
Change in Fasting Plasma Glucose
Change in fasting plasma glucose in mg/dL
Time frame: Baseline and 16 weeks
Plasma ISIS 304801 Level
Measured via a non-compartmental plasma PK analysis of ISIS 304801
Time frame: 16 weeks
| Milestone | Placebo | ISIS 304801 |
|---|---|---|
| Started | 3 | 2 |
| Completed | 3 | 2 |
| Not completed | 0 | 0 |
Change from baseline to 16 weeks in log 10 fasting triglycerides
| log 10 mg/dl | Placebo | ISIS 304801 |
|---|---|---|
| Change in Log 10 Fasting Triglycerides. | 0.1 ± 0.2 | -0.2 ± 0.4 |
Change in lipolysis rate measured using stable isotope tracers (Glycerol rate of appearance) (mg/kgLBM/min)
| mg/kgLBM/min | Placebo | ISIS 304801 |
|---|---|---|
| Change in Lipolysis Rate (Glycerol) | 0.1 ± 0.6 | 0.3 ± 2.0 |
Change in lipolysis rate measured using stable isotope tracers (Palmitate rate of appearance) measured in milligrams per kilogram lean body mass per minute (mg/kgLBM/min)
| mg/kgLBM/min | Placebo | ISIS 304801 |
|---|---|---|
| Change in Lipolysis Rate (Palmitate) | 0.0 ± 0.1 | -0.2 ± 0.0 |
Change from baseline in hepatic steatosis (magnetic resonance spectroscopy) (mL)
| mL | Placebo | ISIS 304801 |
|---|---|---|
| Change From Baseline in Liver Volume | -114.5 ± 384.2 | 129.2 ± 145 |
Change from baseline in hepatic steatosis via magnetic resonance spectroscopy
| percent | Placebo | ISIS 304801 |
|---|---|---|
| Change From Baseline in Hepatic Steatosis | 4.6 ± 14.9 | -3.8 ± 0.92 |
Lipoprotein lipase activity in plasma is measured using blood samples obtained 10 minutes after intravenous infusion of 60 units/kg of unfractionated heparin.
| nmol FFA/min | Placebo | ISIS 304801 |
|---|---|---|
| Change in Lipoprotein Lipase Activity | -1.6 ± 1.6 | -3.2 ± 2.0 |
Change in total body insulin sensitivity using the hyperinsulinemic euglycemic clamp (mg/kgLBM/min)
| mg/kgLBM/min | Placebo | ISIS 304801 |
|---|---|---|
| Change in Total Body Insulin Sensitivity | -0.1 ± 2.0 | 0.4 ± 1.5 |
Change in hemoglobin A1c (HbA1c) (%)
| Percent | Placebo | ISIS 304801 |
|---|---|---|
| Change in HbA1c | 0.6 ± 0.3 | 0.7 ± 0.2 |
Change in fasting plasma glucose in mg/dL
| mg/dL | Placebo | ISIS 304801 |
|---|---|---|
| Change in Fasting Plasma Glucose | -47 ± 77 | -71 ± 100 |
Measured via a non-compartmental plasma PK analysis of ISIS 304801
| ng/mL | Placebo | ISIS 304801 |
|---|---|---|
| Plasma ISIS 304801 Level | 0 ± 0 | 34.5 ± 21.5 |
Collected over 16 weeks of treatment. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Placebo | 0/3 (0%) | 0/3 (0%) | 3/3 (100%) |
| ISIS 304801 | 0/2 (0%) | 1/2 (50%) | 2/2 (100%) |
| Event | Placebo | ISIS 304801 |
|---|---|---|
| Acute PancreatitisGastrointestinal disorders | 0/3 | 1/2 |
| Event | Placebo | ISIS 304801 |
|---|---|---|
| Injection site reactionsInvestigations | 0/3 | 2/2 |
| Elevated liver enzymesHepatobiliary disorders | 1/3 | 1/2 |
| HeadacheNervous system disorders | 0/3 | 1/2 |
| Urinary tract infectionRenal and urinary disorders | 0/3 | 1/2 |
| InfluenzaInfections and infestations | 0/3 | 1/2 |
| HyperglycemiaMetabolism and nutrition disorders | 0/3 | 1/2 |
| PancytopeniaBlood and lymphatic system disorders | 0/3 | 1/2 |
| IV infiltrationInvestigations | 1/3 | 0/2 |
| URIRespiratory, thoracic and mediastinal disorders | 1/3 | 0/2 |
| NauseaGastrointestinal disorders | 1/3 | 0/2 |
| Age, Continuous(Years) | Placebo | ISIS 304801 | Total |
|---|---|---|---|
| Mean | 43.7 ± 9.0 | 32.0 ± 12.7 | 39 ± 11 |
| Sex: Female, Male(Participants) | Placebo | ISIS 304801 | Total |
|---|---|---|---|
| Female | 3 | 2 | 5 |
| Male | 0 | 0 | 0 |
| Ethnicity (NIH/OMB)(Participants) | Placebo | ISIS 304801 | Total |
|---|---|---|---|
| Hispanic or Latino | 0 | 1 | 1 |
| Not Hispanic or Latino | 3 | 1 | 4 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Race (NIH/OMB)(Participants) | Placebo | ISIS 304801 | Total |
|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 |
| Asian | 0 | 0 | 0 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 |
| Black or African American | 0 | 0 | 0 |
| White | 3 | 2 | 5 |
| More than one race | 0 | 0 | 0 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Region of Enrollment(participants) | Placebo | ISIS 304801 | Total |
|---|---|---|---|
| United States | 3 | 2 | 5 |
| Log triglyceride (mg/dL)(log mg/dL) | Placebo | ISIS 304801 | Total |
|---|---|---|---|
| Mean | 2.6 ± 0.3 | 2.7 ± 0.0 | 2.6 ± 0.2 |
Documents are hosted by the registry — open the source record to download them.
Plan to share: No — Data will not be shared due to the small number of participants
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National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)