Effects of Leptin Replacement in Children
2 other identifiers
interventional
1
1 country
1
Brief Summary
To assess the endocrine and immune effects of leptin replacement in leptin-deficient children, from a consanguineous family. The hypothesis is that leptin replacement will have significant effects on endocrine function.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2 obesity
Started Jun 2005
Longer than P75 for phase_2 obesity
1 active site
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 Start
First participant enrolled
June 1, 2005
CompletedFirst Submitted
Initial submission to the registry
April 9, 2008
CompletedFirst Posted
Study publicly available on registry
April 16, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 16, 2010
CompletedStudy Completion
Last participant's last visit for all outcomes
April 16, 2010
CompletedResults Posted
Study results publicly available
February 13, 2020
CompletedFebruary 13, 2020
February 1, 2020
4.9 years
April 9, 2008
February 11, 2020
February 11, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Weight
Baseline, 58 months
Secondary Outcomes (2)
Glucose Levels
Baseline, 58 months
Bone Mineral Density
Baseline, 58 months
Study Arms (1)
Recombinant Methionyl Human Leptin
EXPERIMENTALRecombinant methionyl human leptin: Recombinant methionyl human leptin, subcutaneous, once a day, 0.02 to 0.04 mg/kg (adjusted according to weight loss).
Interventions
Recombinant methionyl human leptin, subcutaneous, once a day, 0.02 to 0.04 mg/kg (adjusted according to weight loss), indeterminate duration.
Eligibility Criteria
You may qualify if:
- Children with a functional leptin gene mutation from a consanguineous Turkish family. Only one leptin-naïve child from this family is alive and eligible.
You may not qualify if:
- N/A
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Miami, Center on Pharmacogenomics
Miami, Florida, 33132, United States
Related Publications (13)
Baicy K, London ED, Monterosso J, Wong ML, Delibasi T, Sharma A, Licinio J. Leptin replacement alters brain response to food cues in genetically leptin-deficient adults. Proc Natl Acad Sci U S A. 2007 Nov 13;104(46):18276-9. doi: 10.1073/pnas.0706481104. Epub 2007 Nov 6.
PMID: 17986612BACKGROUNDLicinio J, Ribeiro L, Busnello JV, Delibasi T, Thakur S, Elashoff RM, Sharma A, Jardack PM, Depaoli AM, Wong ML. Effects of leptin replacement on macro- and micronutrient preferences. Int J Obes (Lond). 2007 Dec;31(12):1859-63. doi: 10.1038/sj.ijo.0803703. Epub 2007 Aug 7.
PMID: 17684509BACKGROUNDLicinio J, Milane M, Thakur S, Whelan F, Yildiz BO, Delibasi T, de Miranda PB, Ozata M, Bolu E, Depaoli A, Wong ML. Effects of leptin on intake of specific micro- and macronutrients in a woman with leptin gene deficiency studied off and on leptin at stable body weight. Appetite. 2007 Nov;49(3):594-9. doi: 10.1016/j.appet.2007.03.228. Epub 2007 Apr 6.
PMID: 17517446BACKGROUNDWilliamson DA, Ravussin E, Wong ML, Wagner A, Dipaoli A, Caglayan S, Ozata M, Martin C, Walden H, Arnett C, Licinio J. Microanalysis of eating behavior of three leptin deficient adults treated with leptin therapy. Appetite. 2005 Aug;45(1):75-80. doi: 10.1016/j.appet.2005.01.002.
PMID: 15949871BACKGROUNDMatochik JA, London ED, Yildiz BO, Ozata M, Caglayan S, DePaoli AM, Wong ML, Licinio J. Effect of leptin replacement on brain structure in genetically leptin-deficient adults. J Clin Endocrinol Metab. 2005 May;90(5):2851-4. doi: 10.1210/jc.2004-1979. Epub 2005 Feb 15.
PMID: 15713712BACKGROUNDLicinio J, Caglayan S, Ozata M, Yildiz BO, de Miranda PB, O'Kirwan F, Whitby R, Liang L, Cohen P, Bhasin S, Krauss RM, Veldhuis JD, Wagner AJ, DePaoli AM, McCann SM, Wong ML. Phenotypic effects of leptin replacement on morbid obesity, diabetes mellitus, hypogonadism, and behavior in leptin-deficient adults. Proc Natl Acad Sci U S A. 2004 Mar 30;101(13):4531-6. doi: 10.1073/pnas.0308767101. Epub 2004 Mar 9.
PMID: 15070752BACKGROUNDMantzoros CS, Ozata M, Negrao AB, Suchard MA, Ziotopoulou M, Caglayan S, Elashoff RM, Cogswell RJ, Negro P, Liberty V, Wong ML, Veldhuis J, Ozdemir IC, Gold PW, Flier JS, Licinio J. Synchronicity of frequently sampled thyrotropin (TSH) and leptin concentrations in healthy adults and leptin-deficient subjects: evidence for possible partial TSH regulation by leptin in humans. J Clin Endocrinol Metab. 2001 Jul;86(7):3284-91. doi: 10.1210/jcem.86.7.7644.
PMID: 11443202BACKGROUNDOzata M, Ozdemir IC, Licinio J. Human leptin deficiency caused by a missense mutation: multiple endocrine defects, decreased sympathetic tone, and immune system dysfunction indicate new targets for leptin action, greater central than peripheral resistance to the effects of leptin, and spontaneous correction of leptin-mediated defects. J Clin Endocrinol Metab. 1999 Oct;84(10):3686-95. doi: 10.1210/jcem.84.10.5999.
PMID: 10523015BACKGROUNDStrobel A, Issad T, Camoin L, Ozata M, Strosberg AD. A leptin missense mutation associated with hypogonadism and morbid obesity. Nat Genet. 1998 Mar;18(3):213-5. doi: 10.1038/ng0398-213. No abstract available.
PMID: 9500540BACKGROUNDPaz-Filho G, Wong ML, Licinio J. The procognitive effects of leptin in the brain and their clinical implications. Int J Clin Pract. 2010 Dec;64(13):1808-12. doi: 10.1111/j.1742-1241.2010.02536.x.
PMID: 21070531DERIVEDPaz-Filho GJ, Delibasi T, Erol HK, Wong ML, Licinio J. Cellular immunity before and after leptin replacement therapy. J Pediatr Endocrinol Metab. 2009 Nov;22(11):1069-74. doi: 10.1515/jpem.2009.22.11.1069.
PMID: 20101893DERIVEDPaz-Filho G, Delibasi T, Erol HK, Wong ML, Licinio J. Congenital leptin deficiency and thyroid function. Thyroid Res. 2009 Nov 4;2(1):11. doi: 10.1186/1756-6614-2-11.
PMID: 19889232DERIVEDPaz-Filho GJ, Babikian T, Asarnow R, Delibasi T, Esposito K, Erol HK, Wong ML, Licinio J. Leptin replacement improves cognitive development. PLoS One. 2008 Aug 29;3(8):e3098. doi: 10.1371/journal.pone.0003098.
PMID: 18769731DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Limitations and Caveats
This is a compassionate use study for a rare disease population. To protect participant privacy and maintain confidentiality, results will not be reported.
Results Point of Contact
- Title
- Richard Bookman
- Organization
- University of Miami
Study Officials
- PRINCIPAL INVESTIGATOR
Julio Licinio, MD
University of Miami
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
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
April 9, 2008
First Posted
April 16, 2008
Study Start
June 1, 2005
Primary Completion
April 16, 2010
Study Completion
April 16, 2010
Last Updated
February 13, 2020
Results First Posted
February 13, 2020
Record last verified: 2020-02
Data Sharing
- IPD Sharing
- Will not share