LipodystrophyPhase 2NCT00025883
Leptin to Treat Lipodystrophy
A Phase 2 study testing Metreleptin in people with Lipodystrophy, run by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) at 1 site in United States.
Trial summary
This study will evaluate the safety and effectiveness of leptin replacement therapy in patients with lipodystrophy (also called lipoatrophy). Patients have a total or partial loss of fat cells. They also lack the hormone leptin, which is produced by fat cells. Read more about this study
- Who is it for?
- Ages 6 months and older
- Conditions the study is for
- Lipodystrophy
- What is being tested?
- Metreleptin
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 103 participants
- Where
- 1 siteUnited States
- Study dates
- Oct 2001to Feb 2015
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 months and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- All ethnic groups.
- Males and females.
- Age greater than or equal to 6 months.
- Clinically significant lipodystrophy, identified by the study physician during the physical examination as an absence of fat outside the range of normal variation and/or identified as a disfiguring factor by the patient.
- Circulating leptin levels less than 12.0 ng/ml in females and less than 8.0 ng/ml in males as measured by Linco assay on a specimen obtained after an overnight fast. In children ages 6 months 5 years, a circulating leptin level of less than 6 ng/mL will be used. Leptin samples will be run through Millipore Laboratories, who use the Linco Assay, which has been the assay previously used to measure leptin levels throughout this study period.
- Presence of at least one of the following metabolic abnormalities:
Show all 13Show fewer
- Presence of diabetes as defined by the 2007 ADA criteria
- Fasting plasma glucose greater than or equal to 126 mg/dL, or
- 2 hour plasma glucose greater than or equal to 200 mg/dL following a 75 gram (1.75gm/kg) oral glucose load, or
- Diabetic symptoms with a random plasma glucose greater than or equal to 200 mg/dl
- Fasting insulin greater than 30 micro units/ml.
- Fasting hypertriglyceridemia greater than 200 mg/dL or postprandially elevated triglycerides greater than 500 mg/dL when fasting is clinically not indicated (e.g. in infants)
- -Persons with impaired decision-making capacity and who may be unable to provide informed consent may participate in this study per the discretion of the Principal Investigator.
Who cannot join
- Pregnant women, women in their reproductive years who do not use an effective method of birth control, and women currently nursing or lactating within 6 weeks of having completed nursing.
- Exclusions for underlying diseases likely to increase side effects or hinder objective data collection:
- Known infectious liver disease
- Known HIV infection
- Current alcohol or substance abuse
- Psychiatric disorder impeding competence or compliance
Show all 11Show fewer
- Active tuberculosis
- Use of anorexiogenic drugs
- Other condition(s) which in the opinion of the clinical investigators would impede completion of the study
- Subjects who have known hypersensitivity to E. Coli derived proteins.
- Subjects with acquired lipodystrophy and a hematologic abnormality such as neutropenia and/or lymphadenopathy
Trial locations and contacts
1 site in 1 country.
United States1 site
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, 20892
About this study
Official title: Long-Term Efficacy of Leptin Replacement in Treatment of Lipodystrophy
This study will evaluate the safety and effectiveness of leptin replacement therapy in patients with lipodystrophy (also called lipoatrophy). Patients have a total or partial loss of fat cells. They also lack the hormone leptin, which is produced by fat cells. The leptin deficiency usually causes high blood lipid (fat) levels and insulin resistance that may lead to diabetes. Patients may have hormone imbalances, fertility problems, large appetite, and liver disease due to fat accumulation.
Patients age greater than or equal to 6 months with significant lipodystrophy may be eligible for this study. Participants will be admitted to the NIH Clinical Center for 10 days for the following studies before beginning 12 months of leptin therapy:
Read more
- Insulin tolerance test
- Ultrasound of the liver and, if abnormalities are found, possibly liver biopsies.
- Fasting blood tests
- Resting metabolic rate
- Magnetic resonance imaging of the liver and other organs, and of muscle and fat.
- Pelvic ultrasound in women to detect ovarian cysts.
- Estimation of body fat
- Oral glucose tolerance test
- Intravenous glucose tolerance test
- Appetite level and food intake
- Hormone function tests
- Questionnaires to assess activity and mood
- 24-hour urine collections
Additional studies may include blood tests for genetic studies of lipodystrophy, a muscle biopsy to study muscle proteins involved in regulating energy expenditure before and after leptin replacement, and examination of a surgical specimen (if available) to study molecules that may be involved in energy storage and use.
When the above tests are completed, leptin therapy begins. The drug is injected under the skin twice a day for 4 months and then once a day, if feasible. The dose is increased at the 1- and 2-month visits. Follow-up visits at 1, 2, 4, 6, 8 and 12 months after therapy starts include a physical examination, blood tests and a meeting with a dietitian. At the end of 12 months, all baseline studies described above are repeated. Patients record their symptoms weekly throughout the study. Those with diabetes measure their blood glucose levels daily before each meal and at bedtime.
Read the detailed description
Lipoatrophic diabetes is a syndrome characterized by insulin resistance in association with a paucity of adipose tissue. Patients with severe lipoatrophy die prematurely, typically from the complications of diabetes or liver disease. Experiments with lipoatrophic mice suggest that the insulin resistance is caused by the lack of adipose tissue. Adipose tissue normally produces leptin, a hormone that increases insulin action. For the last fourteen years, we have been studying the extent to which leptin deficiency causes diabetes in lipoatrophic patients. In fact, in our initial study we have seen nearly 60% amelioration of fasting glucose, triglycerides and free fatty acid levels and about 2% actual decreases from baseline HbA1c levels with 4 months of leptin replacement therapy. This response has continued to be sustained, as we continue to follow patients that have now received leptin replacement therapy for fourteen years.
This is an open-labeled study. The study monitors the safety and efficacy of recombinant methionyl human leptin (A-100) replacement in children and adults. We are looking at the long-term effects of leptin replacement on extended therapy. In this long-term replacement protocol, we will monitor metabolic control (e.g. glucose, insulin, and triglyceride levels) as primary outcome measures. Ancillary studies will evaluate the effect of Metreleptin on other hormonal axes, growth and development and on liver pathology.
We continue to evaluate the efficacy in a broader leptin deficient population of patients with lipodystrophy. Current inclusion criteria in patients greater than or equal to 5 years include female patients with leptin levels < 12 ng/mL and male patients with leptin levels < 8 ng/mL. We continue to seek patients who meet these criteria. In children ages 6 months 5 years, we will use a cut-off leptin level of 6 ng/mL in both genders.
Patients who are greater than or equal to age 5 years will be evaluated every 6 months during the first year of therapy. If no improvements are seen after 6 months of therapy, then the study medication may be increased to 150% of the predicted dose (0.09mg/kg/day for males and girls less than 10 years of age/ 0.12mg/kg/day for females 10 years of age and older) from 6 months to 1 year on therapy. If no improvements are seen after increasing to 150% of the predicted dose, then the study medication will be withdrawn. If the patient shows improvements in his/her metabolic parameters while on leptin, the patient will be invited to continue taking the study medication. The investigators will strive for all patients responding to leptin to bring their metabolic parameters into the normal range. The maximum dose of leptin that will be given is 0.24 mg/kg/day for females 10 and older, and 0.12 mg/kg/day for males and females less than 10 years of age. After the first year of treatment, the patient will be evaluated every 6 months through the second year of treatment, and then the study period will end. After two years of treatment, extending the treatment period on an annual basis will be the decision of the patient, principal investigator and Bristol-Myers Squibb (BMS)/AstraZeneca Pharmaceuticals (AZ). Leptin is supplied by BMS/AZ, and is currently only available through research studies. Neither the NIH nor BMS/AZ can guarantee that leptin will be available indefinitely and/or after the study ends. However, leptin was recently approved by the FDA on February 25, 2014, for use in patients with generalized lipodystrophy.
All patient referrals for acceptance into the protocol, are initiated by the physician/health care provider.
- Conditions
- Lipodystrophy
- Being tested
- Metreleptin
- Keywords
- Lipoatrophic Diabetes, Diabetes Mellitus, Hypertriglyceridemia, NASH, Lipodystrophy, Leptin, Diabetes
- Medical subject headings
- Lipodystrophy, Diabetes Mellitus, Lipoatrophic, Diabetes Mellitus, Hypertriglyceridemia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MetreleptinDrug
Also called Leptin
Drug treatment
| Study group | Role | What they receive |
|---|---|---|
| Metreleptin | Experimental | subcutaneous metreleptin injections in one to two daily doses ranging from 0.06 to 0.24 mg/kg per day. Receives: Drug: Metreleptin |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Glycosylated Hemoglobin at Baseline, 6 Months, and 12 Months on Treatment With Metreleptin
Percentage of glycosylated hemoglobin at Baseline, 6 months, and 12 months on treatment with metreleptin
Measured: Baseline, 6 months, 12 months
Triglycerides at Baseline, 6 Months, and 12 Months on Treatment With Metreleptin
Measured: Baseline, 6 months, 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Oct 2001 (estimated)
- Study startOct 2001
- Primary completionFeb 2015
- Study completionFeb 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (16)Papers the sponsor has linked to this study.
- Other trials for LipodystrophyStudies of the same condition, open and under way.
- More trials run by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 103 participants (actual)
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Phillip Gorden, M.D., Principal investigator, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00025883
- Sponsor's protocol ID
- 020022
- Other IDs
- 02-DK-0022
- Status last verified
- Aug 2016
- First submitted
- 27 Oct 2001
- Last updated
- 16 Aug 2016
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- Yes
Publications
Burant CF, Sreenan S, Hirano K, Tai TA, Lohmiller J, Lukens J, Davidson NO, Ross S, Graves RA. Troglitazone action is independent of adipose tissue. J Clin Invest. 1997 Dec 1;100(11):2900-8. doi: 10.1172/JCI119839.
PubMed 9389757Moitra J, Mason MM, Olive M, Krylov D, Gavrilova O, Marcus-Samuels B, Feigenbaum L, Lee E, Aoyama T, Eckhaus M, Reitman ML, Vinson C. Life without white fat: a transgenic mouse. Genes Dev. 1998 Oct 15;12(20):3168-81. doi: 10.1101/gad.12.20.3168.
PubMed 9784492Cao H, Hegele RA. Nuclear lamin A/C R482Q mutation in canadian kindreds with Dunnigan-type familial partial lipodystrophy. Hum Mol Genet. 2000 Jan 1;9(1):109-12. doi: 10.1093/hmg/9.1.109.
PubMed 10587585Okawa MC, Tuska RM, Lightbourne M, Abel BS, Walter M, Dai Y, Cochran E, Brown RJ. Insulin Signaling Through the Insulin Receptor Increases Linear Growth Through Effects on Bone and the GH-IGF-1 Axis. J Clin Endocrinol Metab. 2023 Dec 21;109(1):e96-e106. doi: 10.1210/clinem/dgad491.
PubMed 37595266Meral R, Malandrino N, Walter M, Neidert AH, Muniyappa R, Oral EA, Brown RJ. Endogenous Leptin Concentrations Poorly Predict Metreleptin Response in Patients With Partial Lipodystrophy. J Clin Endocrinol Metab. 2022 Mar 24;107(4):e1739-e1751. doi: 10.1210/clinem/dgab760.
PubMed 34677608Nguyen ML, Sachdev V, Burklow TR, Li W, Startzell M, Auh S, Brown RJ. Leptin Attenuates Cardiac Hypertrophy in Patients With Generalized Lipodystrophy. J Clin Endocrinol Metab. 2021 Oct 21;106(11):e4327-e4339. doi: 10.1210/clinem/dgab499.
PubMed 34223895Sekizkardes H, Cochran E, Malandrino N, Garg A, Brown RJ. Efficacy of Metreleptin Treatment in Familial Partial Lipodystrophy Due to PPARG vs LMNA Pathogenic Variants. J Clin Endocrinol Metab. 2019 Aug 1;104(8):3068-3076. doi: 10.1210/jc.2018-02787.
PubMed 31194872Brown RJ, Meehan CA, Cochran E, Rother KI, Kleiner DE, Walter M, Gorden P. Effects of Metreleptin in Pediatric Patients With Lipodystrophy. J Clin Endocrinol Metab. 2017 May 1;102(5):1511-1519. doi: 10.1210/jc.2016-3628.
PubMed 28324110Kassai A, Muniyappa R, Levenson AE, Walter MF, Abel BS, Ring M, Taylor SI, Biddinger SB, Skarulis MC, Gorden P, Brown RJ. Effect of Leptin Administration on Circulating Apolipoprotein CIII levels in Patients With Lipodystrophy. J Clin Endocrinol Metab. 2016 Apr;101(4):1790-7. doi: 10.1210/jc.2015-3891. Epub 2016 Feb 22.
PubMed 26900642Chan JL, Koda J, Heilig JS, Cochran EK, Gorden P, Oral EA, Brown RJ. Immunogenicity associated with metreleptin treatment in patients with obesity or lipodystrophy. Clin Endocrinol (Oxf). 2016 Jul;85(1):137-49. doi: 10.1111/cen.12980. Epub 2016 Feb 2.
PubMed 26589105Diker-Cohen T, Cochran E, Gorden P, Brown RJ. Partial and generalized lipodystrophy: comparison of baseline characteristics and response to metreleptin. J Clin Endocrinol Metab. 2015 May;100(5):1802-10. doi: 10.1210/jc.2014-4491. Epub 2015 Mar 3.
PubMed 25734254Christensen JD, Lungu AO, Cochran E, Collins MT, Gafni RI, Reynolds JC, Rother KI, Gorden P, Brown RJ. Bone mineral content in patients with congenital generalized lipodystrophy is unaffected by metreleptin replacement therapy. J Clin Endocrinol Metab. 2014 Aug;99(8):E1493-500. doi: 10.1210/jc.2014-1353. Epub 2014 Jul 29.
PubMed 25070319Joseph J, Shamburek RD, Cochran EK, Gorden P, Brown RJ. Lipid regulation in lipodystrophy versus the obesity-associated metabolic syndrome: the dissociation of HDL-C and triglycerides. J Clin Endocrinol Metab. 2014 Sep;99(9):E1676-80. doi: 10.1210/jc.2014-1878. Epub 2014 Jun 13.
PubMed 24926953Kamran F, Rother KI, Cochran E, Safar Zadeh E, Gorden P, Brown RJ. Consequences of stopping and restarting leptin in an adolescent with lipodystrophy. Horm Res Paediatr. 2012;78(5-6):320-5. doi: 10.1159/000341398. Epub 2012 Sep 4.
PubMed 22965160Chan JL, Lutz K, Cochran E, Huang W, Peters Y, Weyer C, Gorden P. Clinical effects of long-term metreleptin treatment in patients with lipodystrophy. Endocr Pract. 2011 Nov-Dec;17(6):922-32. doi: 10.4158/EP11229.OR.
PubMed 22068254
Study at a glance
From the registry record, last updated by the sponsor on 16 Aug 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Long-Term Efficacy of Leptin Replacement in Treatment of Lipodystrophy
- ClinicalTrials.gov ID
- NCT00025883
- Acronym / sponsor ID
- 020022
- Conditions
- Lipodystrophy
- Keywords
- Lipoatrophic Diabetes, Diabetes Mellitus, Hypertriglyceridemia, NASH, Lipodystrophy, Leptin, Diabetes
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 103 participants (actual)
- Lead sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)US National Institutes of Health
- Study start
- Oct 2001
- Primary completion
- Feb 2015 (actual)
- Study completion
- Feb 2015 (actual)
- First posted
- 29 Oct 2001 (estimated)
- Results
- Posted 16 Aug 2016
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will evaluate the safety and effectiveness of leptin replacement therapy in patients with lipodystrophy (also called lipoatrophy). Patients have a total or partial loss of fat cells. They also lack the hormone leptin, which is produced by fat cells. The leptin deficiency usually causes high blood lipid (fat) levels and insulin resistance that may lead to diabetes. Patients may have hormone imbalances, fertility problems, large appetite, and liver disease due to fat accumulation.
Patients age greater than or equal to 6 months with significant lipodystrophy may be eligible for this study. Participants will be admitted to the NIH Clinical Center for 10 days for the following studies before beginning 12 months of leptin therapy:
- Insulin tolerance test
- Ultrasound of the liver and, if abnormalities are found, possibly liver biopsies.
- Fasting blood tests
- Resting metabolic rate
- Magnetic resonance imaging of the liver and other organs, and of muscle and fat.
- Pelvic ultrasound in women to detect ovarian cysts.
- Estimation of body fat
- Oral glucose tolerance test
- Intravenous glucose tolerance test
- Appetite level and food intake
- Hormone function tests
- Questionnaires to assess activity and mood
- 24-hour urine collections
Additional studies may include blood tests for genetic studies of lipodystrophy, a muscle biopsy to study muscle proteins involved in regulating energy expenditure before and after leptin replacement, and examination of a surgical specimen (if available) to study molecules that may be involved in energy storage and use.
When the above tests are completed, leptin therapy begins. The drug is injected under the skin twice a day for 4 months and then once a day, if feasible. The dose is increased at the 1- and 2-month visits. Follow-up visits at 1, 2, 4, 6, 8 and 12 months after therapy starts include a physical examination, blood tests and a meeting with a dietitian. At the end of 12 months, all baseline studies described above are repeated. Patients record their symptoms weekly throughout the study. Those with diabetes measure their blood glucose levels daily before each meal and at bedtime.
Detailed description
Lipoatrophic diabetes is a syndrome characterized by insulin resistance in association with a paucity of adipose tissue. Patients with severe lipoatrophy die prematurely, typically from the complications of diabetes or liver disease. Experiments with lipoatrophic mice suggest that the insulin resistance is caused by the lack of adipose tissue. Adipose tissue normally produces leptin, a hormone that increases insulin action. For the last fourteen years, we have been studying the extent to which leptin deficiency causes diabetes in lipoatrophic patients. In fact, in our initial study we have seen nearly 60% amelioration of fasting glucose, triglycerides and free fatty acid levels and about 2% actual decreases from baseline HbA1c levels with 4 months of leptin replacement therapy. This response has continued to be sustained, as we continue to follow patients that have now received leptin replacement therapy for fourteen years.
This is an open-labeled study. The study monitors the safety and efficacy of recombinant methionyl human leptin (A-100) replacement in children and adults. We are looking at the long-term effects of leptin replacement on extended therapy. In this long-term replacement protocol, we will monitor metabolic control (e.g. glucose, insulin, and triglyceride levels) as primary outcome measures. Ancillary studies will evaluate the effect of Metreleptin on other hormonal axes, growth and development and on liver pathology.
We continue to evaluate the efficacy in a broader leptin deficient population of patients with lipodystrophy. Current inclusion criteria in patients greater than or equal to 5 years include female patients with leptin levels < 12 ng/mL and male patients with leptin levels < 8 ng/mL. We continue to seek patients who meet these criteria. In children ages 6 months 5 years, we will use a cut-off leptin level of 6 ng/mL in both genders.
Patients who are greater than or equal to age 5 years will be evaluated every 6 months during the first year of therapy. If no improvements are seen after 6 months of therapy, then the study medication may be increased to 150% of the predicted dose (0.09mg/kg/day for males and girls less than 10 years of age/ 0.12mg/kg/day for females 10 years of age and older) from 6 months to 1 year on therapy. If no improvements are seen after increasing to 150% of the predicted dose, then the study medication will be withdrawn. If the patient shows improvements in his/her metabolic parameters while on leptin, the patient will be invited to continue taking the study medication. The investigators will strive for all patients responding to leptin to bring their metabolic parameters into the normal range. The maximum dose of leptin that will be given is 0.24 mg/kg/day for females 10 and older, and 0.12 mg/kg/day for males and females less than 10 years of age. After the first year of treatment, the patient will be evaluated every 6 months through the second year of treatment, and then the study period will end. After two years of treatment, extending the treatment period on an annual basis will be the decision of the patient, principal investigator and Bristol-Myers Squibb (BMS)/AstraZeneca Pharmaceuticals (AZ). Leptin is supplied by BMS/AZ, and is currently only available through research studies. Neither the NIH nor BMS/AZ can guarantee that leptin will be available indefinitely and/or after the study ends. However, leptin was recently approved by the FDA on February 25, 2014, for use in patients with generalized lipodystrophy.
All patient referrals for acceptance into the protocol, are initiated by the physician/health care provider.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Metreleptin | Experimental | Drug: Metreleptinsubcutaneous metreleptin injections in one to two daily doses ranging from 0.06 to 0.24 mg/kg per day. |
Who may qualify
- Ages
- 6 months and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (13 listed)
- All ethnic groups.
- Males and females.
- Age greater than or equal to 6 months.
- Clinically significant lipodystrophy, identified by the study physician during the physical examination as an absence of fat outside the range of normal variation and/or identified as a disfiguring factor by the patient.
- Circulating leptin levels less than 12.0 ng/ml in females and less than 8.0 ng/ml in males as measured by Linco assay on a specimen obtained after an overnight fast. In children ages 6 months 5 years, a circulating leptin level of less than 6 ng/mL will be used. Leptin samples will be run through Millipore Laboratories, who use the Linco Assay, which has been the assay previously used to measure leptin levels throughout this study period.
Key exclusion criteria (11 listed)
- Pregnant women, women in their reproductive years who do not use an effective method of birth control, and women currently nursing or lactating within 6 weeks of having completed nursing.
- Exclusions for underlying diseases likely to increase side effects or hinder objective data collection:
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| MetreleptinAlso: LeptinDrug treatment | Drug | Metreleptin |
Primary outcome
Percentage of Glycosylated Hemoglobin at Baseline, 6 Months, and 12 Months on Treatment With Metreleptin
Time frame: Baseline, 6 months, 12 months
Percentage of glycosylated hemoglobin at Baseline, 6 months, and 12 months on treatment with metreleptin
Triglycerides at Baseline, 6 Months, and 12 Months on Treatment With Metreleptin
Time frame: Baseline, 6 months, 12 months
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Aug 2016.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 9389757Burant CF, Sreenan S, Hirano K, Tai TA, Lohmiller J, Lukens J, Davidson NO, Ross S, Graves RA. Troglitazone action is independent of adipose tissue. J Clin Invest. 1997 Dec 1;100(11):2900-8. doi: 10.1172/JCI119839.
- Background: PubMed 9784492Moitra J, Mason MM, Olive M, Krylov D, Gavrilova O, Marcus-Samuels B, Feigenbaum L, Lee E, Aoyama T, Eckhaus M, Reitman ML, Vinson C. Life without white fat: a transgenic mouse. Genes Dev. 1998 Oct 15;12(20):3168-81. doi: 10.1101/gad.12.20.3168.
- Background: PubMed 10587585Cao H, Hegele RA. Nuclear lamin A/C R482Q mutation in canadian kindreds with Dunnigan-type familial partial lipodystrophy. Hum Mol Genet. 2000 Jan 1;9(1):109-12. doi: 10.1093/hmg/9.1.109.
- Derived from this study: PubMed 37595266Okawa MC, Tuska RM, Lightbourne M, Abel BS, Walter M, Dai Y, Cochran E, Brown RJ. Insulin Signaling Through the Insulin Receptor Increases Linear Growth Through Effects on Bone and the GH-IGF-1 Axis. J Clin Endocrinol Metab. 2023 Dec 21;109(1):e96-e106. doi: 10.1210/clinem/dgad491.
- Derived from this study: PubMed 34677608Meral R, Malandrino N, Walter M, Neidert AH, Muniyappa R, Oral EA, Brown RJ. Endogenous Leptin Concentrations Poorly Predict Metreleptin Response in Patients With Partial Lipodystrophy. J Clin Endocrinol Metab. 2022 Mar 24;107(4):e1739-e1751. doi: 10.1210/clinem/dgab760.
- Derived from this study: PubMed 34223895Nguyen ML, Sachdev V, Burklow TR, Li W, Startzell M, Auh S, Brown RJ. Leptin Attenuates Cardiac Hypertrophy in Patients With Generalized Lipodystrophy. J Clin Endocrinol Metab. 2021 Oct 21;106(11):e4327-e4339. doi: 10.1210/clinem/dgab499.
- Derived from this study: PubMed 31194872Sekizkardes H, Cochran E, Malandrino N, Garg A, Brown RJ. Efficacy of Metreleptin Treatment in Familial Partial Lipodystrophy Due to PPARG vs LMNA Pathogenic Variants. J Clin Endocrinol Metab. 2019 Aug 1;104(8):3068-3076. doi: 10.1210/jc.2018-02787.
- Derived from this study: PubMed 28324110Brown RJ, Meehan CA, Cochran E, Rother KI, Kleiner DE, Walter M, Gorden P. Effects of Metreleptin in Pediatric Patients With Lipodystrophy. J Clin Endocrinol Metab. 2017 May 1;102(5):1511-1519. doi: 10.1210/jc.2016-3628.
- Derived from this study: PubMed 26900642Kassai A, Muniyappa R, Levenson AE, Walter MF, Abel BS, Ring M, Taylor SI, Biddinger SB, Skarulis MC, Gorden P, Brown RJ. Effect of Leptin Administration on Circulating Apolipoprotein CIII levels in Patients With Lipodystrophy. J Clin Endocrinol Metab. 2016 Apr;101(4):1790-7. doi: 10.1210/jc.2015-3891. Epub 2016 Feb 22.
- Derived from this study: PubMed 26589105Chan JL, Koda J, Heilig JS, Cochran EK, Gorden P, Oral EA, Brown RJ. Immunogenicity associated with metreleptin treatment in patients with obesity or lipodystrophy. Clin Endocrinol (Oxf). 2016 Jul;85(1):137-49. doi: 10.1111/cen.12980. Epub 2016 Feb 2.
- Derived from this study: PubMed 25734254Diker-Cohen T, Cochran E, Gorden P, Brown RJ. Partial and generalized lipodystrophy: comparison of baseline characteristics and response to metreleptin. J Clin Endocrinol Metab. 2015 May;100(5):1802-10. doi: 10.1210/jc.2014-4491. Epub 2015 Mar 3.
- Derived from this study: PubMed 25070319Christensen JD, Lungu AO, Cochran E, Collins MT, Gafni RI, Reynolds JC, Rother KI, Gorden P, Brown RJ. Bone mineral content in patients with congenital generalized lipodystrophy is unaffected by metreleptin replacement therapy. J Clin Endocrinol Metab. 2014 Aug;99(8):E1493-500. doi: 10.1210/jc.2014-1353. Epub 2014 Jul 29.
- NIH Clinical Center Detailed Web PageLink provided by the sponsor.
- Individual participant dataSharing planned: Yes
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Phillip Gorden, M.D. principal investigator
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Metreleptin in people with Lipodystrophy, run by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 13 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 16 Aug 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 16 Aug 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of Glycosylated Hemoglobin at Baseline, 6 Months, and 12 Months on Treatment With Metreleptin (time frame: Baseline, 6 months, 12 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00025883, which also lists 16 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Aug 2016.