Clinical trial NCT01630460: Genetic and Functional Analysis of Craniometaphyseal Dysplasia (CMD)
Official title: Identification of Mutations That Lead to Craniometaphyseal Dysplasia in Families and Isolated Cases and Studies of Cellular and Molecular Mechanisms
Study type: OBSERVATIONAL
Overall status: RECRUITING
Conditions: Craniometaphyseal Dysplasia
Keywords: Craniometaphyseal dysplasia
bone
hyperostosis
osteoblast
osteoclast
Lead sponsor: UConn Health
Sponsor class: OTHER
First posted: 2012-06-28
Enrollment: 600
Sex: ALL
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: CASE_CONTROL
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Individuals with diagnosed CMD

Brief summary: CMD can be inherited in an autosomal dominant or recessive trait. CMD may also be caused by de novo mutations. The goal of this study is to identify genes and regulatory elements on chromosomes that are the cause for CMD. The investigators also study blood samples and tissue samples from patients to learn about the processes that lead to this disorder. The investigators long-term goal is to find mechanisms to slow down bone deposition in CMD patients.

Detailed description: CMD is a very rare bone disorder that affects mostly bones of the head (=cranial bones) but also long (=tubular) bones. Therefore, CMD has been added to the class of craniotubular bone disorders. There are a number of disorders in this group and sometimes they are difficult to distinguish. Typical signs for CMD are the lifelong bone deposition in bones of the face and head (=progressive craniofacial hyperostosis) and the widening of the ends of long bones (=metaphyseal flaring). Typical facial characteristics are wide-set eyes and a prominent jaw (=mandible). CMD is sometimes diagnosed in infants. The best way to confirm diagnosis is by molecular genetics.

Eligibility criteria: Inclusion Criteria:

* CMD; unaffected individuals only if part of a participating CMD family

Exclusion Criteria:

* No CMD; unaffected individuals only as part of a participating CMD family

Primary outcomes:
measure: Identification of genetic elements
timeFrame: at time of identification
Secondary outcomes:
Other outcomes:
Locations:
city: Farmington
country: United States
facility: University of Connecticut Health Center
state: Connecticut
Study officials:
affiliation: UConn Health
name: Ernst J Reichenberger, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Dutra EH, Chen IP, McGregor TL, Ranells JD, Reichenberger EJ. Two novel large ANKH deletion mutations in sporadic cases with craniometaphyseal dysplasia. Clin Genet. 2012 Jan;81(1):93-5. doi: 10.1111/j.1399-0004.2011.01700.x. No abstract available.
citation: Chen IP, Wang L, Jiang X, Aguila HL, Reichenberger EJ. A Phe377del mutation in ANK leads to impaired osteoblastogenesis and osteoclastogenesis in a mouse model for craniometaphyseal dysplasia (CMD). Hum Mol Genet. 2011 Mar 1;20(5):948-61. doi: 10.1093/hmg/ddq541. Epub 2010 Dec 13.
citation: Chen IP, Wang CJ, Strecker S, Koczon-Jaremko B, Boskey A, Reichenberger EJ. Introduction of a Phe377del mutation in ANK creates a mouse model for craniometaphyseal dysplasia. J Bone Miner Res. 2009 Jul;24(7):1206-15. doi: 10.1359/jbmr.090218.
citation: Reichenberger E, Chen IP. Craniometaphyseal Dysplasia, Autosomal Dominant. 2007 Aug 27 [updated 2020 Jun 11]. In: Adam MP, Feldman J, Mirzaa GM, Pagon RA, Wallace SE, Amemiya A, editors. GeneReviews(R) [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2025. Available from http://www.ncbi.nlm.nih.gov/books/NBK1461/
citation: Reichenberger E, Tiziani V, Watanabe S, Park L, Ueki Y, Santanna C, Baur ST, Shiang R, Grange DK, Beighton P, Gardner J, Hamersma H, Sellars S, Ramesar R, Lidral AC, Sommer A, Raposo do Amaral CM, Gorlin RJ, Mulliken JB, Olsen BR. Autosomal dominant craniometaphyseal dysplasia is caused by mutations in the transmembrane protein ANK. Am J Hum Genet. 2001 Jun;68(6):1321-6. doi: 10.1086/320612. Epub 2001 Apr 16.
citation: Hu Y, Chen IP, de Almeida S, Tiziani V, Do Amaral CM, Gowrishankar K, Passos-Bueno MR, Reichenberger EJ. A novel autosomal recessive GJA1 missense mutation linked to Craniometaphyseal dysplasia. PLoS One. 2013 Aug 12;8(8):e73576. doi: 10.1371/journal.pone.0073576. eCollection 2013.
citation: Dutra EH, Chen IP, Reichenberger EJ. Dental abnormalities in a mouse model for craniometaphyseal dysplasia. J Dent Res. 2013 Feb;92(2):173-9. doi: 10.1177/0022034512468157. Epub 2012 Nov 15.
citation: Chen IP, Tadinada A, Dutra EH, Utreja A, Uribe F, Reichenberger EJ. Dental Anomalies Associated with Craniometaphyseal Dysplasia. J Dent Res. 2014 Jun;93(6):553-8. doi: 10.1177/0022034514529304. Epub 2014 Mar 24.
citation: Chen IP, Luxmi R, Kanaujiya J, Hao Z, Reichenberger EJ. Craniometaphyseal Dysplasia Mutations in ANKH Negatively Affect Human Induced Pluripotent Stem Cell Differentiation into Osteoclasts. Stem Cell Reports. 2017 Nov 14;9(5):1369-1376. doi: 10.1016/j.stemcr.2017.09.016. Epub 2017 Oct 19.
citation: Kanaujiya J, Bastow E, Luxmi R, Hao Z, Zattas D, Hochstrasser M, Reichenberger EJ, Chen IP. Rapid degradation of progressive ankylosis protein (ANKH) in craniometaphyseal dysplasia. Sci Rep. 2018 Oct 24;8(1):15710. doi: 10.1038/s41598-018-34157-5.
citation: Fujii Y, Kozak E, Dutra E, Varadi A, Reichenberger EJ, Chen IP. Restriction of Dietary Phosphate Ameliorates Skeletal Abnormalities in a Mouse Model for Craniometaphyseal Dysplasia. J Bone Miner Res. 2020 Oct;35(10):2070-2081. doi: 10.1002/jbmr.4110. Epub 2020 Jul 12.