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Insulin-like growth factor-I: clinical studies.

P E Vos¹, H P Koppeschaar, W R de Vries

¹Department of Neurology, University Hospital Utrecht, The Netherlands.

Drugs of Today (Barcelona, Spain : 1998)

|April 20, 2004

Summary

Insulin-like growth factor-I (IGF-I) is a key hormone with diverse roles. Recombinant human IGF-I (rhIGF-I) shows promise for treating neurological conditions, despite potential side effects.

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Area of Science:

Endocrinology
Cell Biology
Neuroscience

Background:

Insulin-like growth factor-I (IGF-I) exhibits endocrine, autocrine, and paracrine functions.
IGF-I receptors are widely distributed, particularly on mesenchymal cells like fibroblasts, chondrocytes, and osteoblasts.
IGF-I plays roles in bone growth, metabolic disorders, and diseases including cancer and thyroid conditions.

Purpose of the Study:

To review the multifaceted roles of IGF-I.
To highlight the therapeutic potential of recombinant human IGF-I (rhIGF-I) in various diseases.
To discuss the emerging role of IGF-I as a neurotrophic factor.

Main Methods:

Review of existing literature on IGF-I.
Analysis of clinical trial data for rhIGF-I in neurological diseases.

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Summary of known physiological and pathological functions of IGF-I.

Main Results:

rhIGF-I is effective in treating Growth Hormone (GH)-resistant Laron dwarfism and severe insulin resistance.
Phase II trials indicate rhIGF-I efficacy in neurological conditions like traumatic brain injury, myotonic dystrophy, and amyotrophic lateral sclerosis.
Potential side effects of rhIGF-I treatment include increased heart rate, edema, and hypertension.

Conclusions:

IGF-I is a critical factor with broad physiological implications.
rhIGF-I represents a significant therapeutic advancement for specific endocrine and neurological disorders.
Further research into IGF-I's neurotrophic properties and management of its side effects is warranted.