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Safety Profile of Insulin Like Growth Factor-1 (IGF-I) Administration in Adolescents

This study has been completed.
Information provided by (Responsible Party):
Madhusmita Misra, Massachusetts General Hospital Identifier:
First received: August 13, 2007
Last updated: December 10, 2013
Last verified: December 2013
The purpose of this study was to determine whether giving insulin like growth factor-I (IGF-I) to adolescent low weight girls is safe and whether this increases levels of bone formation markers.

Condition Intervention Phase
Anorexia Nervosa
Drug: RhIGF-1
Phase 1
Phase 2

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Official Title: Safety Profile of Insulin Like Growth Factor-1 (IGF-I) Administration in Adolescents

Resource links provided by NLM:

Further study details as provided by Madhusmita Misra, Massachusetts General Hospital:

Primary Outcome Measures:
  • Change in Levels of Insulin Like Growth Factor-1 (IGF-I) Following Recombinant Human (rh) IGF-1 Administration in Girls With Anorexia Nervosa [ Time Frame: Baseline and 7-10 days ]

Secondary Outcome Measures:
  • Change in Levels of N-terminal Propeptide of Type 1 Procollagen (P1NP) Following rhIGF-1 Administration in Girls With Anorexia Nervosa [ Time Frame: Baseline and 7-10 days ]

Enrollment: 16
Study Start Date: March 2007
Study Completion Date: December 2008
Primary Completion Date: May 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Insulin like growth factor- 1 (IGF-1)
Adolescent girls with AN meeting inclusion criteria were administered recombinant human (rh) rhIGF-1 at a dose of 35-40 mcg/k twice daily by subcutaneous injections for a 7-10 day period.
Drug: RhIGF-1
35-40 mcg/k/dose twice daily SC
Other Name: Increlex

Detailed Description:

Adolescents with anorexia nervosa (AN) are at high risk for low bone mineral density at a time when healthy adolescents are rapidly accruing bone, with implications for peak bone mass and fracture risk in later life. They are also deficient in insulin-like growth factor I (IGF-I), the bone trophic factor made in the liver in response to growth hormone (GH), despite elevated levels GH. It is possible that deficiency of IGF-I, a hormone very important for the maintenance of skeletal integrity, may contribute to the severe osteopenia seen in AN. The physiologic effects of rhIGF-I treatment in adolescents with AN had not been studied. The goal of this proposal was to investigate the acute effects of rhIGF-I on bone metabolism in adolescent girls with AN.

Specific Aim: It was hypothesized that adolescent AN patients, being IGF-I deficient, would respond to exogenously administered rhIGF-I with elevations in biochemical indices of bone turnover. Therefore, rhIGF-I was administered to AN patients by subcutaneous injection over 10 days with concomitant measurement of indices of bone turnover, and calcium regulatory hormones.


Ages Eligible for Study:   12 Years to 18 Years   (Child, Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Adolescent girls with anorexia nervosa 12-18 years old

Exclusion Criteria:

  • Pregnancy or nursing
  • Hematocrit < 30%, K < 3 mmol/L
  • Any illness (other than anorexia nervosa) known to affect bone and mineral metabolism such as diabetes, alcoholism, untreated hypo- or hyperthyroidism, or hyperparathyroidism
  • History of use of any medicine, such as corticosteroids, known to affect bone density. Subjects who were on estrogen were still eligible to participate in the study.
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Please refer to this study by its identifier: NCT00516386

United States, Massachusetts
Massachusetts General Hospital
Boston, Massachusetts, United States, 02114
Sponsors and Collaborators
Massachusetts General Hospital
Principal Investigator: Madhu Misra Massachusetts General Hospital
  More Information

Responsible Party: Madhusmita Misra, Associate Professor of Pediatrics, Massachusetts General Hospital Identifier: NCT00516386     History of Changes
Other Study ID Numbers: 2006P-000737
Study First Received: August 13, 2007
Results First Received: November 23, 2010
Last Updated: December 10, 2013

Keywords provided by Madhusmita Misra, Massachusetts General Hospital:
Anorexia nervosa (AN)
Bone formation markers
Insulin like growth factor-1 (IGF-I)

Additional relevant MeSH terms:
Anorexia Nervosa
Signs and Symptoms, Digestive
Signs and Symptoms
Feeding and Eating Disorders
Mental Disorders
Insulin, Globin Zinc
Hypoglycemic Agents
Physiological Effects of Drugs
Mitosis Modulators
Molecular Mechanisms of Pharmacological Action processed this record on May 25, 2017