NCT00085982

Brief Summary

Study Description: Patients with mutations of the insulin receptor have diabetes that is challenging to control with conventional therapies, leading to early morbidity and mortality. We hypothesize that recombinant leptin (metreleptin) in these patients will improve glycemia control. Objectives: Primary Objective: To determine if 1 year of metreleptin will improve glycemia control in patients with genetic defects of the insulin receptor. Secondary Objectives: To determine mechanisms by which metreleptin improves glycemia. Endpoints: Primary Endpoint: Hemoglobin A1c. Secondary Endpoints: fasting plasma glucose, fasting insulin/C-peptide, glucose/insulin/C-peptide area under the curve during oral glucose tolerance test. Study Population: 20 male or female patients with mutations of the insulin receptor, age (Bullet)5 years, at the NIH Clinical Center. Description of Sites/Facilities Enrolling Participants: Description of Study Intervention: NIH Clinical Center Open label study of metreleptin, 0.2 mg/kg/day (max dose 0.24 mg/kg/day).

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
11

participants targeted

Target at below P25 for phase_2

Timeline
44mo left

Started Aug 2003

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress86%
Aug 2003Jan 2030

Study Start

First participant enrolled

August 21, 2003

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

June 18, 2004

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 21, 2004

Completed
15.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 23, 2019

Completed
2.1 years until next milestone

Results Posted

Study results publicly available

December 15, 2021

Completed
8.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2030

Expected
Last Updated

January 30, 2025

Status Verified

December 1, 2024

Enrollment Period

16.2 years

First QC Date

June 18, 2004

Results QC Date

November 15, 2021

Last Update Submit

January 28, 2025

Conditions

Keywords

Rabson MendenhallType B Insulin ResistanceType A Insulin Resistance

Outcome Measures

Primary Outcomes (1)

  • Change in HbA1C

    Change in HbA1C at month 12 from baseline.

    Change at month 12 from baseline

Secondary Outcomes (2)

  • Change in Fasting Insulin Level

    Change at month 12 from baseline

  • Change in Fasting Blood Glucose

    Change at month 12 from baseline

Study Arms (1)

Leptin Treatment

EXPERIMENTAL

300 mg of study drug administered via subcutaneous (SC) injections.

Drug: Metreleptin

Interventions

Administered SC twice/day to achieve physiological concentrations that will be effective in improving the severe state of insulin resistance seen in patients with genetic defects on their insulin receptor mutation

Leptin Treatment

Eligibility Criteria

Age5 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Provision of signed and dated informed consent form
  • Male or female, aged \> 5 years
  • Clinically significant, severe insulin resistance caused by a known or suspected defect in the insulin receptor
  • Presence of at least one of the following metabolic abnormalities:
  • Fasting insulin \>30 micro U/ml, or
  • Presence of diabetes as defined by the 2006 American Diabetes Association (ADA) criteria:
  • Fasting plasma glucose \>= 126 mg/dL
  • hour plasma glucose \>= 200 mg/dL following a 75 gram (1.75g/kg if less than 40kg) oral glucose load, or
  • Diabetic symptoms with a random plasma glucose \>= 200 mg/dL

You may not qualify if:

  • Pregnant at time of enrollment, 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.
  • Known infectious liver disease
  • Known HIV infection
  • Current alcohol or substance abuse
  • Active tuberculosis
  • Use of anorexigenic drugs
  • Other conditions which in the opinion of the clinical investigators would impede completion of the study.
  • Subjects who have a known hypersensitivity to E. Coli derived proteins.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, 20892, United States

Location

Related Publications (4)

  • Sekizkardes H, Chung ST, Chacko S, Haymond MW, Startzell M, Walter M, Walter PJ, Lightbourne M, Brown RJ. Free fatty acid processing diverges in human pathologic insulin resistance conditions. J Clin Invest. 2020 Jul 1;130(7):3592-3602. doi: 10.1172/JCI135431.

    PMID: 32191645BACKGROUND
  • Okawa 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.

  • Okawa MC, Cochran E, Lightbourne M, Brown RJ. Long-Term Effects of Metreleptin in Rabson-Mendenhall Syndrome on Glycemia, Growth, and Kidney Function. J Clin Endocrinol Metab. 2022 Feb 17;107(3):e1032-e1046. doi: 10.1210/clinem/dgab782.

  • Brown RJ, Cochran E, Gorden P. Metreleptin improves blood glucose in patients with insulin receptor mutations. J Clin Endocrinol Metab. 2013 Nov;98(11):E1749-56. doi: 10.1210/jc.2013-2317. Epub 2013 Aug 22.

Related Links

MeSH Terms

Conditions

Insulin ResistanceDiabetes Mellitus, Insulin-Resistant, with Acanthosis Nigricans

Interventions

metreleptin

Condition Hierarchy (Ancestors)

HyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Results Point of Contact

Title
Rebecca Brown, MD
Organization
NIDDK

Study Officials

  • Rebecca J Brown, M.D.

    National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 18, 2004

First Posted

June 21, 2004

Study Start

August 21, 2003

Primary Completion

October 23, 2019

Study Completion (Estimated)

January 1, 2030

Last Updated

January 30, 2025

Results First Posted

December 15, 2021

Record last verified: 2024-12

Locations