Skeletal Health and Bone Marrow Composition in Adolescents With Cystic Fibrosis

Cystic Fibrosis Clinical Trial

Official title:

Skeletal Health and Bone Marrow Composition in Adolescents With Cystic Fibrosis

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT06216704
• Other study ID #: IRB-P00047144
• Secondary ID: 005960A123
• Status: Recruiting
• Start date: April 1, 2024
• Est. completion date: June 30, 2029

Study information

• Verified date: April 2024
• Source: Boston Children's Hospital
• Contact: Rebecca Gordon, MD
• Phone: (617) 355-7476
• Email: rebecca.gordon[@]childrens.harvard.edu
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The investigators will be evaluating bone marrow composition via magnetic resonance imaging in adolescents diagnosed with cystic fibrosis (CF) compared to healthy, matched controls. The investigators will also be assessing their bone mineral density via other imaging modalities, including dual-energy X-ray absorptiometry (DXA) and peripheral quantitative computed tomography (pQCT). This longitudinal project will focus on abnormalities in bone marrow composition, and specifically whether adolescents with diagnosed with CF exhibit increased bone marrow fat, its association with bone mineral density (BMD) and the underlying pathophysiology, including glycemic control, inflammation, and bone turnover markers.

Description:

Less than optimal bone health has been seen in children that have cystic fibrosis (CF). This can present as low bone density or altered bone structure, weakening the bones and increasing fragility and fracture risk. As adolescence is especially important in bone development, conditions such as CF during this time can lead to long term bone issues. The underlying mechanisms are not well understood, but what is known is that red bone marrow converts to fat-rich yellow marrow. This study aims to focus on abnormalities in bone marrow, and specifically whether adolescents who have been diagnosed with CF have more bone marrow fat. The primary hypothesis is that patients with CF will have associated increased fat levels in bone marrow, which will be associated with decreased bone formation and suboptimal bone health. The central objective is to obtain longitudinal data on the differences in bone marrow between patients with CF versus healthy adolescents. Long term, the investigators want to study how abnormal marrow fat and suboptimal bone health relate to one another. The study involves 36 adolescents diagnosed with CF and 36 matched healthy controls. Eligibility criteria include no other chronic diseases that affect bone health and limited use of bone altering medications in the prior three months. The adolescents with CF will be matched with healthy adolescents based on sex, ancestry, age, and pubertal stage. Additional data on participants with CF will be collected via a chart review that will enable us to more fully characterize their CF. Imaging will include: MRI of the knee with quantitative marrow fat assessment; dual-energy X-ray absorptiometry (DXA); and peripheral quantitative computed tomography (pQCT). All scans will be for research purposes only. The MRIs will be evaluated for any incidental findings, and if any identified, it will be reported to their primary care physician. Additionally, blood draws will be used to assess markers of bone formation/resorption and inflammation. In participants with CF, they will have a continuous glucose monitor to assess dysglycemia. All participants will also complete questionnaires. There will be a baseline visit, and then a follow up visit 1 year later, with identical study procedures at both visits.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 36
• Est. completion date: June 30, 2029
• Est. primary completion date: December 31, 2028
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 13 Years to 20 Years

Eligibility

Inclusion Criteria:

• 13-20 years old
• Cystic fibrosis with pancreatic insufficiency
• Must have a stable treatment regimen, including CFTR modulator usage unchanged for the prior three months
• Liver transplant recipients will be eligible, as long as they are at least 1 year post-transplant and are no longer on Prednisone for immunosuppressive therapy

Exclusion Criteria:

• Diagnosis of other chronic disease affecting bone health
• Active use (within the past 3 months) of medications that are known to affect skeletal metabolism
• CF exacerbation or glucocorticoid exposure within the prior 1 month
• Lung transplant

Related Conditions & MeSH terms

• Cystic Fibrosis
• Fibrosis

Intervention

Diagnostic Test:
• Magnetic resonance relaxometry
Spin-lattice relaxation (T1) relaxometry acquisition consisting of fast spin echo (FSE) acquisitions through the knee. T1 maps from the T1 relaxometry images will be generated using a two-parameter-fit iterative algorithm developed in-house using IDL software (Harris Geospatial Solutions, Melbourne, FL, USA). Mean T1 values for each region will be recorded. The anatomical locations of these regions will be consistent in size for all subjects and location. The locations chosen for the primary endpoints are ones that are known to be rich in red and yellow marrow, respectively.
• Magnetic resonance spectroscopy
Magnetic resonance spectroscopy. MRS will be performed within a 1 mL voxel situated in the medial aspect of the distal femoral metaphysis. A single voxel point resolved spectral acquisition (PRESS) technique will be used to acquire non-water suppressed spectra at multiple echo times. Spectral fits using JMRUI MRS processing software (www.jmrui.eu) to the water and methylene/methyl resonances will be used to quantify peak areas and establish T2 corrected fat/(fat + water) ratios.
• Blood Draw
Blood draw. Blood draws will be used to attain and assess markers of bone formation/resorption and inflammation. Specific markers of bone formation that will be assessed include osteocalcin (OC) and procollagen type 1 N-terminal propeptide (P1NP), and a marker of bone resorption, c-telopeptide (CTX). Additionally, in participants with CF, we will assess inflammation, with a c-reactive protein (CRP), and dysglycemia, with a continuous glucose monitor.
• DXA
DXA will be utilized to obtain BMD of the total body, lumbar spine, and hip using a Hologic Horizon densitometer (Hologic Inc, Bedford, MA). Body composition will be obtained from total body scans.
• pQCT
pQCT will be utilized to obtain volumetric BMD (mg/cm3) of the left tibia. Measurements using a Stratec XCT 3000 device (Orthometrix, White Plains, NY) will be obtained at multiple locations, in relation to distal growth plate.

Locations

Country	Name	City	State
United States	Boston Children's Hospital	Boston	Massachusetts

Sponsors (2)

Lead Sponsor	Collaborator
Boston Children's Hospital	Cystic Fibrosis Foundation

Country where clinical trial is conducted

United States, 

References & Publications (26)

Anabtawi A, Le T, Putman M, Tangpricha V, Bianchi ML. Cystic fibrosis bone disease: Pathophysiology, assessment and prognostic implications. J Cyst Fibros. 2019 Oct;18 Suppl 2:S48-S55. doi: 10.1016/j.jcf.2019.08.018. — View Citation

Aris RM, Merkel PA, Bachrach LK, Borowitz DS, Boyle MP, Elkin SL, Guise TA, Hardin DS, Haworth CS, Holick MF, Joseph PM, O'Brien K, Tullis E, Watts NB, White TB. Guide to bone health and disease in cystic fibrosis. J Clin Endocrinol Metab. 2005 Mar;90(3):1888-96. doi: 10.1210/jc.2004-1629. Epub 2004 Dec 21. — View Citation

Bonjour JP, Theintz G, Law F, Slosman D, Rizzoli R. Peak bone mass. Osteoporos Int. 1994;4 Suppl 1:7-13. doi: 10.1007/BF01623429. — View Citation

Callaway DA, Jiang JX. Reactive oxygen species and oxidative stress in osteoclastogenesis, skeletal aging and bone diseases. J Bone Miner Metab. 2015 Jul;33(4):359-70. doi: 10.1007/s00774-015-0656-4. Epub 2015 Mar 26. — View Citation

Conway SP. Impact of lung inflammation on bone metabolism in adolescents with cystic fibrosis. Paediatr Respir Rev. 2001 Dec;2(4):324-31. doi: 10.1053/prrv.2001.0167. — View Citation

Ecklund K, Vajapeyam S, Feldman HA, Buzney CD, Mulkern RV, Kleinman PK, Rosen CJ, Gordon CM. Bone marrow changes in adolescent girls with anorexia nervosa. J Bone Miner Res. 2010 Feb;25(2):298-304. doi: 10.1359/jbmr.090805. — View Citation

Ecklund K, Vajapeyam S, Mulkern RV, Feldman HA, O'Donnell JM, DiVasta AD, Gordon CM. Bone marrow fat content in 70 adolescent girls with anorexia nervosa: Magnetic resonance imaging and magnetic resonance spectroscopy assessment. Pediatr Radiol. 2017 Jul;47(8):952-962. doi: 10.1007/s00247-017-3856-3. Epub 2017 Apr 22. — View Citation

Elkin SL, Vedi S, Bord S, Garrahan NJ, Hodson ME, Compston JE. Histomorphometric analysis of bone biopsies from the iliac crest of adults with cystic fibrosis. Am J Respir Crit Care Med. 2002 Dec 1;166(11):1470-4. doi: 10.1164/rccm.200206-578OC. Epub 2002 Sep 11. — View Citation

Gordon CM, Zemel BS, Wren TA, Leonard MB, Bachrach LK, Rauch F, Gilsanz V, Rosen CJ, Winer KK. The Determinants of Peak Bone Mass. J Pediatr. 2017 Jan;180:261-269. doi: 10.1016/j.jpeds.2016.09.056. Epub 2016 Nov 3. No abstract available. — View Citation

Gordon RJ, Pappa HM, Vajapeyam S, Mulkern R, Ecklund K, Snapper SB, Gordon CM. Bone marrow adiposity in pediatric Crohn's disease. Bone. 2022 Sep;162:116453. doi: 10.1016/j.bone.2022.116453. Epub 2022 Jun 3. — View Citation

Hardin DS, Arumugam R, Seilheimer DK, LeBlanc A, Ellis KJ. Normal bone mineral density in cystic fibrosis. Arch Dis Child. 2001 Apr;84(4):363-8. doi: 10.1136/adc.84.4.363. — View Citation

Henderson RC, Madsen CD. Bone density in children and adolescents with cystic fibrosis. J Pediatr. 1996 Jan;128(1):28-34. doi: 10.1016/s0022-3476(96)70424-9. — View Citation

Hu L, Yin C, Zhao F, Ali A, Ma J, Qian A. Mesenchymal Stem Cells: Cell Fate Decision to Osteoblast or Adipocyte and Application in Osteoporosis Treatment. Int J Mol Sci. 2018 Jan 25;19(2):360. doi: 10.3390/ijms19020360. — View Citation

Javier RM, Jacquot J. Bone disease in cystic fibrosis: what's new? Joint Bone Spine. 2011 Oct;78(5):445-50. doi: 10.1016/j.jbspin.2010.11.015. Epub 2011 Jan 12. — View Citation

Karampinos DC, Ruschke S, Gordijenko O, Grande Garcia E, Kooijman H, Burgkart R, Rummeny EJ, Bauer JS, Baum T. Association of MRS-Based Vertebral Bone Marrow Fat Fraction with Bone Strength in a Human In Vitro Model. J Osteoporos. 2015;2015:152349. doi: 10.1155/2015/152349. Epub 2015 Apr 19. — View Citation

Laursen EM, Molgaard C, Michaelsen KF, Koch C, Muller J. Bone mineral status in 134 patients with cystic fibrosis. Arch Dis Child. 1999 Sep;81(3):235-40. doi: 10.1136/adc.81.3.235. — View Citation

Moore SG, Dawson KL. Red and yellow marrow in the femur: age-related changes in appearance at MR imaging. Radiology. 1990 Apr;175(1):219-23. doi: 10.1148/radiology.175.1.2315484. — View Citation

Putman MS, Anabtawi A, Le T, Tangpricha V, Sermet-Gaudelus I. Cystic fibrosis bone disease treatment: Current knowledge and future directions. J Cyst Fibros. 2019 Oct;18 Suppl 2:S56-S65. doi: 10.1016/j.jcf.2019.08.017. — View Citation

Sands D, Mielus M, Umlawska W, Lipowicz A, Oralewska B, Walkowiak J. Evaluation of factors related to bone disease in Polish children and adolescents with cystic fibrosis. Adv Med Sci. 2015 Sep;60(2):315-20. doi: 10.1016/j.advms.2015.05.002. Epub 2015 Jun 3. — View Citation

Schellinger D, Lin CS, Lim J, Hatipoglu HG, Pezzullo JC, Singer AJ. Bone marrow fat and bone mineral density on proton MR spectroscopy and dual-energy X-ray absorptiometry: their ratio as a new indicator of bone weakening. AJR Am J Roentgenol. 2004 Dec;183(6):1761-5. doi: 10.2214/ajr.183.6.01831761. — View Citation

Stahl M, Holfelder C, Kneppo C, Kieser M, Kasperk C, Schoenau E, Sommerburg O, Tonshoff B. Multiple prevalent fractures in relation to macroscopic bone architecture in patients with cystic fibrosis. J Cyst Fibros. 2018 Jan;17(1):114-120. doi: 10.1016/j.jcf.2016.06.004. Epub 2016 Jun 18. — View Citation

Tian X, Cong F, Guo H, Fan J, Chao G, Song T. Downregulation of Bach1 protects osteoblasts against hydrogen peroxide-induced oxidative damage in vitro by enhancing the activation of Nrf2/ARE signaling. Chem Biol Interact. 2019 Aug 25;309:108706. doi: 10.1016/j.cbi.2019.06.019. Epub 2019 Jun 11. — View Citation

Ullal J, Kutney K, Williams KM, Weber DR. Treatment of cystic fibrosis related bone disease. J Clin Transl Endocrinol. 2021 Dec 21;27:100291. doi: 10.1016/j.jcte.2021.100291. eCollection 2022 Mar. — View Citation

Vajapeyam S, Ecklund K, Mulkern RV, Feldman HA, O'Donnell JM, DiVasta AD, Rosen CJ, Gordon CM. Magnetic resonance imaging and spectroscopy evidence of efficacy for adrenal and gonadal hormone replacement therapy in anorexia nervosa. Bone. 2018 May;110:335-342. doi: 10.1016/j.bone.2018.02.021. Epub 2018 Feb 26. — View Citation

Viswanathan A, Sylvester FA. Chronic pediatric inflammatory diseases: effects on bone. Rev Endocr Metab Disord. 2008 Jun;9(2):107-22. doi: 10.1007/s11154-007-9070-0. Epub 2007 Dec 29. — View Citation

Weber DR, Gordon RJ, Kelley JC, Leonard MB, Willi SM, Hatch-Stein J, Kelly A, Kosacci O, Kucheruk O, Kaafarani M, Zemel BS. Poor Glycemic Control Is Associated With Impaired Bone Accrual in the Year Following a Diagnosis of Type 1 Diabetes. J Clin Endocrinol Metab. 2019 Oct 1;104(10):4511-4520. doi: 10.1210/jc.2019-00035. — View Citation

* Note: There are 26 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Bone marrow adiposity by magnetic resonance relaxometry (MR relaxometry)	Change in bone marrow adiposity measured by MR relaxometry	Baseline and One Year follow-up
Primary	Bone marrow adiposity by magnetic resonance spectroscopy (MRS)	Change in bone marrow adiposity measured by MRS	Baseline and One Year follow-up
Secondary	Total body bone mineral density Z-score by Dual-energy X-ray absorptiometry (DXA)	Change in total body less head BMD Z-score	Baseline and One Year follow-up
Secondary	Spine BMD Z-score by DXA	Change in lumbar spine BMD Z-score	Baseline and One Year follow-up
Secondary	Hip BMD Z-score by DXA	Change in hip BMD Z-score	Baseline and One year follow-up
Secondary	Volumetric bone mineral density (vBMD)	Change in quantitative computed tomography (pQCT) scans will be obtained at the left tibia	Baseline and One Year follow-up
Secondary	polar strength strain index	Change in pQCT bone strength measure	Baseline and One Year follow-up
Secondary	osteocalcin	Change in bone formation assessed by osteocalcin (ng/mL)	Baseline and One Year follow-up
Secondary	procollagen type 1 N-terminal propeptide	Change in bone formation assessed by procollagen type 1 N-terminal propeptide (ng/mL)	Baseline and One Year follow-up
Secondary	c-telopeptide	Change in bone resorption assessed by c-telopeptide (pg/ml)	Baseline and One Year follow-up