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          Grants & Funding: The NIAMS Extramural Program
          Clinical Trials in the Spotlight
          Rare Diseases Clinical Research Network Brittle Bone Disease Consortium Longitudinal Study of Osteogenesis Imperfecta








Rare Diseases Clinical Research Network Brittle Bone Disease Consortium Longitudinal Study of Osteogenesis Imperfecta FacebookEmailPrintFacebookEmail     
    The National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) supports a range of clinical trials studying new and existing interventions for prevention and treatment of arthritis, musculoskeletal, and skin diseases.  Recruitment for this clinical trial complete.   Updates will be made  to this page when the study completes data analysis and results become available. Please check back often and find out how these studies have contributed to generating new knowledge about diseases and conditions within the NIAMS mission area.

Click on Main Page to learn more about actively recruiting research studies for which you or someone you know may be eligible.

Study Description

Osteogenesis Imperfecta (OI) is a rare disorder that causes bones to break easily. People with OI may have broken bones with little or no trauma, dentinogenesis imperfecta (DI), and, in adult years, hearing loss. It is seen in both genders and all races. OI can range from very severe to very mild. Individuals with the most severe type of OI may die at birth. People with severe OI who survive may have bowed arms and legs, very short stature and be unable to walk. People with the mildest form of OI may only break bones occasionally and have normal height and lifespan. People with OI also often have problems with the spine. The spine problems include compression fractures and scoliosis (a curvature of the spine). DI is characterized by grey or brown teeth that may chip and wear down and break easily.

Before the genetic cause of OI was known, OI was classified into four types. Each type was based upon the symptoms and severity of OI. In most people with OI, the cause is a change in one of the genes that makes a protein called type 1 collagen. In the past decade, it was discovered that in about 5% of people with OI it is in another gene. Some doctors now classify OI both on how severe it is as well as which gene is causing OI.

The purpose of this natural history study is to perform a long-term follow-up of a large group of people with OI and to improve the health and quality of life of people with OI.

The study aims are:

1. Perform DNA testing and collect natural history data on all individuals enrolled in this longitudinal study. The genetic cause of the brittle bone disease will be compared with things like severity, various features and response to treatments.

2. See how often people with type I OI have vertebral compression fractures of the spine. The study team will do x-rays to see how often they get compression fractures of the vertebrae, what happens over time and any risk factors that increase the risk of these compression fractures.

3. Follow people with all forms of OI to see how often they develop scoliosis (curvature of the spine). The study team will look at the effects of scoliosis on lung function, ability to walk and quality of life and also look at the effects of various treatments (bracing, surgery, etc.) on scoliosis and lung function.

4. Look at dental health in people with OI. The study team will see how often people with OI have problems with teeth alignment.

**ELIGIBILITY CRITERIA:**

**Inclusion Criteria:**

Natural History Study:

	Have had a DNA test or skin collagen test that proves you have OI or
		Your clinical history and x-rays are highly suggestive of OI, but your diagnosis has not been verified by collagen or DNA testing
	Vertebral Compression Fractures component
	You have a genetic change where your body makes half the normal amount of collagen. These types of genetic changes are called nonsense or frameshift mutations in COL1A1 or COL1A2 genes
	Scoliosis in OI component:
	You are older than 3 years of age
	Dental and Craniofacial Abnormalities in OI component:
	You are older than 3 years of age and agree to a dental exam and to digital photos of teeth and face being taken.**Exclusion Criteria:**

Natural History Study

	You are can't return for study visits at least yearly
		You have a condition other than OI
		You have OI and a second genetic or syndromic diagnosis
	Vertebral Compression Fractures component
	You have used a medication such as bisphosphonates, calcitonin, calcitriol, fluoride, etc., in the past year.
		You have conditions other than OI that affects muscle and/or bone development (examples include cerebral palsy, rickets, etc.)
		You have nonsense or frame shift mutations in the final coding exons of COL1A1 or COL1A2.
	Scoliosis in OI component:
	You are unable to have spine x-rays taken.
	Dental and Craniofacial Abnormalities in OI component:You refuse the dental examination.**Study Design:**Observational Model: CohortTime Perspective: Prospective**Study Location(s):**University of California Los Angeles, Los Angeles, California, United States, 90095Children's National Medical Center, Washington, District of Columbia, United States, 21205Tampa Shriners Hospital for Children , Tampa, Florida, United States, 33612Kennedy Krieger Institute / Hugo W. Moser Research Institute, Baltimore, Maryland, United States, 21205University of Nebraska Medical Center, Omaha, Nebraska, United States, 68198Hospital for Special Surgery, New York, New York, United States, 10021Oregon Health and Science University, Portland, Oregon, United States, 97239Baylor College of Medicine, Houston, Texas, United States, 77030Shriners Hospital for Children, Chicago / Marquette University, Milwaukee, Wisconsin, United States, 53201Shriners Hospital for Children , Montreal, Quebec, Canada, H3G 1A6**Study Website:**https://clinicaltrials.gov/ct2/show/NCT02432625?term=NCT02432625&rank=1


Last Updated: August 2022


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