Page last updated: 2024-11-13

calpastatin

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Description

calpastatin: large mol wt, heat-stable calpain inhibitor; not based on sequestering Ca++ from medium, but binding to calpain does require Ca++ [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

calpastatin peptide Ac 184-210 : A 27-membered polypeptide comprising the sequence Ac-Asp-Pro-Met-Ser-Ser-Thr-Tyr-Ile-Glu-Glu-Leu-Gly-Lys-Arg-Glu-Val-Thr-Ile-Pro-Pro-Lys-Tyr-Arg-Glu-Leu-Leu-Ala-NH2. An acetylated synthetic peptide from human calpastatin that strongly inhibits both calpains I and II but not papain (a cysteine protease) or trypsin (a serine protease). [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Cross-References

ID SourceID
PubMed CID90488788
CHEBI ID131884
MeSH IDM0104368

Synonyms (11)

Synonym
ac-l-asp-l-pro-l-met-l-ser-l-ser-l-thr-l-tyr-l-ile-l-glu-l-glu-l-leu-gly-l-lys-l-arg-l-glu-l-val-l-thr-l-ile-l-pro-l-pro-l-lys-l-tyr-l-arg-l-glu-l-leu-l-leu-l-ala-nh2
CHEBI:131884
acetyl-calpastatin (184-210)
calpastatin peptide ac 184-210
calpastatin peptide b27-wt
n-acetyl-l-alpha-aspartyl-l-prolyl-l-methionyl-l-seryl-l-seryl-l-threonyl-l-tyrosyl-l-isoleucyl-l-alpha-glutamyl-l-alpha-glutamyl-l-leucylglycyl-l-lysyl-l-arginyl-l-alpha-glutamyl-l-valyl-l-threonyl-l-isoleucyl-l-prolyl-l-prolyl-l-lysyl-l-tyrosyl-l-arginy
calpastatin
AKOS024457352
123714-50-1
ac-asp-pro-met-ser-ser-thr-tyr-ile-glu-glu-leu-gly-lys-arg-glu-val-thr-ile-pro-pro-lys-tyr-arg-glu-l
ac-calpastatin(184-210)(human)

Research Excerpts

Overview

Calpastatin (CAST) is a protein inhibitor that acts specifically on calpains and plays a regulatory role in postmortem beef tenderization and muscle proteolysis. Calpastatin is an endogenous inhibitor of calpain, which has been implicated in various physiological and pathological processes.

ExcerptReferenceRelevance
"Calpastatin (CAST) is a protein inhibitor of the ubiquitous calcium-dependent proteases-micro-calpain and m-calpain."( Single nucleotide polymorphisms in caprine calpastatin gene.
Maitra, A; Mishra, BP; Pandey, AK; Sharma, R; Singh, LV, 2013
)
1.37
"Calpastatin (CAST) is an endogenous calpain inhibitor and its main function is to modulate the proteolytic action of enzymes responsible for post-mortem myofibril deterioration. "( Expression of calpastatin and myostatin genes associated with lamb meat quality.
Amaral, RM; Bagatoli, A; Del Vesco, AP; Gasparino, E; Macedo, FA; Soares, MA; Voltolini, DM, 2013
)
2.19
"Calpastatin is an endogenous specific inhibitor of calpain, a calcium-dependent cysteine protease. "( Loss-of-function mutations in CAST cause peeling skin, leukonychia, acral punctate keratoses, cheilitis, and knuckle pads.
Chen, Y; Cole, C; Dai, L; Duo, L; Feng, C; Kelsell, DP; Lin, Z; McLean, WH; Nitoiu, D; O'Toole, EA; Plagnol, V; Ren, Y; Schwartz, ME; Scott, CA; Smith, FJ; Wang, H; Wilson, NJ; Xu, X; Yang, Y; Zhang, J; Zhao, J; Zhou, EY, 2015
)
1.86
"Calpastatin is an endogenous inhibitor of calpain, which has been implicated in various physiological and pathological processes. "( Cardiac high molecular weight calmodulin-binding protein is homologous to calpastatin I and calpastatin II.
Bardsley, RG; Lakshmikuttyamma, A; Olson, D; Parr, T; Ross, A; Sharma, RK; Shrivastav, A; Singh, N, 2008
)
2.02
"Calpastatin (CAST) is a protein inhibitor that acts specifically on calpains and plays a regulatory role in postmortem beef tenderization and muscle proteolysis. "( Haplotypic diversity within the ovine calpastatin (CAST) gene.
Byun, SO; Hickford, JG; Zhou, H, 2009
)
2.07
"Calpastatin is an endogenous inhibitor of calpain, intracellular calcium-activated protease. "( Comprehensive behavioral phenotyping of calpastatin-knockout mice.
Huang, SM; Iwata, N; Miyakawa, T; Nakajima, R; Saido, TC; Takano, J; Takao, K, 2008
)
2.06
"Calpastatin is a likely positional candidate gene in this region because of its inhibitory role in the calpain system that is involved in postmortem tenderization."( Relationships among calpastatin single nucleotide polymorphisms, calpastatin expression and tenderness in pork longissimus.
Holl, JW; Koohmaraie, M; Lindholm-Perry, AK; Nonneman, D; Rohrer, GA; Shackelford, SD; Wheeler, TL, 2009
)
1.4
"Calpastatin (CAST) is an important gene for meat quality traits in livestock and poultry. "( Molecular cloning and characterization of caprine calpastatin gene.
Wang, DH; Wu, DJ; Xu, GY; Zheng, CL, 2011
)
2.07
"Calpastatin (CS) is a specific, endogenous inhibitor of m- and micro -calpains that does not inhibit calpain 3 (p94)."( Overexpression of a calpastatin transgene in mdx muscle reduces dystrophic pathology.
Mellgren, RL; Spencer, MJ, 2002
)
1.36
"Calpastatin is a naturally occurring inhibitor of calpain, a protease involved in apoptotic cell death. "( Heat-induced apoptosis of mouse meiotic cells is suppressed by ectopic expression of testis-specific calpastatin.
Doglio, L; Goldberg, E; Li, S; Somwaru, L; Zirkin, BR,
)
1.79
"Calpastatin is a multiheaded inhibitor capable of inhibiting more than one calpain molecule. "( Interaction of calpastatin with calpain: a review.
Goll, DE; Thompson, VF; Wendt, A, 2004
)
2.12
"Calpastatin is a specific inhibitor of calpains."( Effect of nutrient restriction on calpain and calpastatin content of skeletal muscle from cows and fetuses.
Du, M; Ford, SP; Hess, BW; Means, WJ; Zhu, MJ, 2004
)
1.3
"Calpastatin is an endogenous inhibitor of calpain, a ubiquitous protease that regulates inflammatory processes."( Autoantibodies directed against the protease inhibitor calpastatin in psoriasis.
Kawara, S; Matsushita, Y; Sato, S; Shimada, Y; Takehara, K, 2005
)
1.3
"Calpastatin is a specific endogenous protein inhibitor of the ubiquitous calcium dependent proteinases mu- and m-calpain. "( Four promoters direct expression of the calpastatin gene.
Amarger, V; Jayat-Vignoles, C; Laforêt, MP; Levéziel, H; Raynaud, P, 2005
)
2.04
"Calpastatin is a specific calpain protease inhibitor: calpains are a family of calcium-activated neutral proteases, which have been implicated in various processes. "( Correlation between bovine calpastatin mRNA transcripts and protein isoforms.
Amarger, V; Bardsley, R; Gillard, M; Levéziel, H; Parr, T; Raynaud, P, 2005
)
2.07
"Calpastatin is a protein found in meat and it is a regulator of meat tenderness."( Viability of a FRET dual binding technique to detect calpastatin.
Grant, SA; Lichlyter, D; Lorenzen, CL; Stringer, RC; Studer, S, 2005
)
1.3
"Calpastatin is an intrinsic intracellular inhibitor of calpain, a Ca(2+)-dependent thiol protease. "( Expression and immunolocalization of the calpain-calpastatin system during parthenogenetic activation and fertilization in the rat egg.
Ben-Aharon, I; Haim, K; Shalgi, R, 2006
)
2.03
"Calpastatin (CAST) is a naturally occurring protein that inhibits the normal tenderization of meat as it ages postmortem. "( Association of a single nucleotide polymorphism in the calpastatin gene with carcass and meat quality traits of beef cattle.
Jiang, Z; Li, H; Mandell, IB; Miller, SP; Schenkel, FS; Wilton, JW; Ye, X, 2006
)
2.02
"Calpastatin is a specific inhibitor of calpains and has been implicated in the regulation of beef tenderization. "( Polymorphism of the ovine calpastatin gene.
Gong, H; Hickford, JG; Zhou, H, 2007
)
2.08
"Calpastatin (CAST) is a specific inhibitor of the ubiquitous calcium-dependent proteases-mu-calpain and m-calpain, found in mammalian tissues. "( A novel polymorphisms in intron 12 of the bovine calpastatin gene.
Juszczuk-Kubiak, E; Rosochacki, S; Wicińska, K; Wyszyńska-Koko, J, 2008
)
2.04
"Calpastatin is an endogenous inhibitor of calpain and composed of domain L (CS(L)), which interacts with the Cav1.2 channels, and four repetitive calpain inhibitory domains. "( Calpastatin binds to a calmodulin-binding site of cardiac Cav1.2 Ca2+ channels.
Han, DY; Hao, LY; Horiuchi, M; Kameyama, M; Minobe, E; Saud, ZA; Wang, WY, 2007
)
3.23
"Calpastatin is a widely distributed endogenous inhibitor protein specifically acting on calpain (Ca(2+)-dependent proteinase) and is known to interact with the calmodulin-like domain (CaMLD) of the proteinase in a Ca(2+)-dependent fashion. "( Amino-terminal conserved region in proteinase inhibitor domain of calpastatin potentiates its calpain inhibitory activity by interacting with calmodulin-like domain of the proteinase.
Hatanaka, M; Ma, H; Maki, M; Takano, E; Yang, HQ, 1994
)
1.97
"Calpastatin is a specific inhibitor of the calpains. "( Bovine skeletal muscle calpastatin: cloning, sequence analysis, and steady-state mRNA expression.
Killefer, J; Koohmaraie, M, 1994
)
2.04
"Calpastatin is an endogenous modulator of calpain activity and is also localized within the same cytoplasmic region as calpains."( Calpain and calpastatin are located between the plasma membrane and outer acrosomal membrane of cynomolgus macaque spermatozoa.
Goldberg, E; Overstreet, JW; Robertson, KR; Yudin, AI,
)
1.23
"Calpastatin is an endogenous inhibitor protein acting specifically on calpain (EC 3.4.22.17; Ca2(+)-dependent cysteine proteinase). "( Phosphorylation and subcellular distribution of calpastatin in human hematopoietic system cells.
Adachi, Y; Hatanaka, M; Ishida-Takahashi, A; Murachi, T; Takahashi, C; Takano, E, 1991
)
1.98
"Calpastatin is a widely distributed endogenous inhibitor protein specifically acting on calpain (Ca2+-dependent cysteine endopeptidase). "( Inhibition of calpain by a synthetic oligopeptide corresponding to an exon of the human calpastatin gene.
Bagci, H; Hamaguchi, K; Hatanaka, M; Maki, M; Murachi, T; Ueda, M, 1989
)
1.94
"Calpastatin is an endogenous inhibitor protein specifically acting on calpains (Ca2+-dependent cysteine endopeptidases)."( Analysis of structure-function relationship of pig calpastatin by expression of mutated cDNAs in Escherichia coli.
Hatanaka, M; Maki, M; Murachi, T; Ooi, T; Osawa, T; Takano, E, 1988
)
1.25

Effects

ExcerptReferenceRelevance
"Calpastatin has a M(r) of 323KDa using denaturing gradient PAGE and a pI of 4.7."( The purification and characterization of mu-calpain and calpastatin from ostrich brain.
Mkwetshana, N; Muramoto, K; Naudé, RJ, 2002
)
1.28
"Calpastatin has been introduced as a potential candidate gene for growth and meat quality traits. "( Detecting novel SNPs and breed-specific haplotypes at calpastatin gene in Iranian fat- and thin-tailed sheep breeds and their effects on protein structure.
Aali, M; Moradi-Shahrbabak, H; Moradi-Shahrbabak, M; Sadeghi, M, 2014
)
2.09

Actions

Calpastatin is seen to inhibit calpain by occupying both sides of the active site cleft. The calpastatin activity was lower in cortex in both groups.

ExcerptReferenceRelevance
"Calpastatin is seen to inhibit calpain by occupying both sides of the active site cleft."( Calcium-bound structure of calpain and its mechanism of inhibition by calpastatin.
Campbell, RL; Davies, PL; Hanna, RA, 2008
)
1.3
"The calpastatin activity was lower in cortex in both groups."( Calpain and calpastatin in normal and Alzheimer-degenerated human brain tissue.
Alafuzoff, I; Blennow, K; Blomgren, K; Gottfries, CG; Hall, CM; Janson, I; Karlsson, I; Karlsson, JO; Nilsson, E; Wallin, A,
)
0.99

Toxicity

ExcerptReferenceRelevance
" The peptide is toxic to neurons, possibly by causing initial synaptic dysfunction and neuronal membrane dystrophy, promoted by increased cellular Ca(2+)."( Amyloid beta peptide toxicity in differentiated PC12 cells: calpain-calpastatin, caspase, and membrane damage.
Barnoy, S; Elkind, E; Kosower, NS; Vaisid, T, 2008
)
0.58
" Abeta is toxic to neurons, possibly through causing initial synaptic dysfunction and neuronal membrane dystrophy, promoted by increased cellular Ca(2+)."( Calpastatin overexpression attenuates amyloid-beta-peptide toxicity in differentiated PC12 cells.
Barnoy, S; Kosower, NS; Vaisid, T, 2008
)
1.79
" Mutations in the gene encoding Cu/Zn superoxide dismutase (SOD1) cause ALS through a gain of toxic function."( Calpastatin reduces toxicity of SOD1G93A in a culture model of amyotrophic lateral sclerosis.
Durham, HD; Tradewell, ML, 2010
)
1.8
" Aβ was toxic to clean cells, resulting in necrotic cell damage."( Neuroprotective effects of Mycoplasma hyorhinis against amyloid-β-peptide toxicity in SH-SY5Y human neuroblastoma cells are mediated by calpastatin upregulation in the mycoplasma-infected cells.
Barnoy, S; Elkind, E; Kornspan, JD; Kosower, NS; Rottem, S; Vaisid, T, 2011
)
0.57
" Supplementation of cells with exogenous calpastatin was able to reverse the toxic effect of METH on reduction in cell viability and tyrosine hydroxylase phosphorylation."( Calpastatin reduces calpain and caspase activation in methamphetamine-induced toxicity in human neuroblastoma SH-SY5Y cultured cells.
Chetsawang, B; Govitrapong, P; Phansuwan-Pujito, P; Suwanjang, W, 2012
)
2.09
"Methamphetamine (METH) is an addictive stimulant drug that has many negative consequences, including toxic effects to the brain."( Methamphetamine toxicity-induced calcineurin activation, nuclear translocation of nuclear factor of activated T-cells and elevation of cyclooxygenase 2 levels are averted by calpastatin overexpression in neuroblastoma SH-SY5Y cells.
Abubakar, Z; Chetsawang, B; Chetsawang, J; Govitrapong, P; Nudmamud-Thanoi, S; Phonchai, R, 2018
)
0.67

Dosage Studied

ExcerptRelevanceReference
" Cows receiving 25-OH D3 or DCAD+25-OH D3 were dosed with 125 mg of 25-OH D3 6 d before slaughter."( Effects of 25-hydroxyvitamin D3 and manipulated dietary cation-anion difference on the tenderness of beef from cull native Korean cows.
Cho, YM; Choi, H; Hwang, IH; Kim, YK; Myung, KH, 2006
)
0.33
" Using prenatal transient systemic hypoxia-ischemia (TSHI) in rats to mimic CNS injury from extreme preterm birth, and postnatal EPO treatment with a clinically relevant dosing regimen, we found sustained postnatal excess cortical calpain activation following prenatal TSHI, as shown by the cleavage of alpha II-spectrin (αII-spectrin) into 145-kDa αII-spectrin degradation products (αII-SDPs) and p35 into p25."( Erythropoietin Modulates Cerebral and Serum Degradation Products from Excess Calpain Activation following Prenatal Hypoxia-Ischemia.
Corbett, CJ; Jantzie, LL; Robinson, S; Winer, JL, 2016
)
0.43
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Roles (2)

RoleDescription
EC 3.4.22.52 (calpain-1) inhibitorA calpain inhibitor that interferes with the action of calpain-1 (EC 3.4.22.52).
EC 3.4.22.53 (calpain-2) inhibitorA calpain inhibitor that interferes with the action of calpain-2 (EC 3.4.22.53).
[role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Drug Classes (1)

ClassDescription
polypeptideA peptide containing ten or more amino acid residues.
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Research

Studies (984)

TimeframeStudies, This Drug (%)All Drugs %
pre-199076 (7.72)18.7374
1990's278 (28.25)18.2507
2000's341 (34.65)29.6817
2010's265 (26.93)24.3611
2020's24 (2.44)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 31.36

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be moderate demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index31.36 (24.57)
Research Supply Index6.91 (2.92)
Research Growth Index4.91 (4.65)
Search Engine Demand Index43.31 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (31.36)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials5 (0.50%)5.53%
Reviews49 (4.91%)6.00%
Case Studies3 (0.30%)4.05%
Observational0 (0.00%)0.25%
Other941 (94.29%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Clinical Trials (24)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Is Univalving or Bivalving of Long Arm Casts for Forearm Fractures Necessary? [NCT02614690]60 participants (Actual)Interventional2013-01-31Completed
Evaluation of Functional Outcomes at 2 Months According to Therapeutic Management, in Trauma With Low-grade Osteo-ligamentous Ankle Injury in Children [NCT05009342]200 participants (Anticipated)Interventional2021-09-09Recruiting
Early Weight-Bearing in the Closed Treatment of Tibial Shaft Fractures in Children [NCT01238523]81 participants (Actual)Interventional2007-05-31Completed
Body-worn Sensor Technology for Improving Diabetic Care During Activities of Daily Living [NCT02233179]49 participants (Actual)Interventional2009-06-30Completed
Unterarm-Combicast Versus Oberarm-Combicast Bei Gelenknahen Distalen (Salter Harris I/II) Radius- Und Vorderarmfrakturen im Kindesalter [NCT05156749]120 participants (Anticipated)Interventional2021-12-07Recruiting
Biobased Polyester Versus Synthetic Fiberglass Casts for Treating Stable Upper Limb Fractures in Children: a Randomized Controlled Trial [NCT06102603]100 participants (Actual)Interventional2022-01-27Completed
Management of Type 1 Supracondylar Humeral Fractures: A Multicentre Randomized Control Trial [NCT04642807]52 participants (Anticipated)Interventional2021-04-01Recruiting
Cast OFF Trial: One Versus Four-five Weeks of Plaster Cast Immobilization for Non-reduced Distal Radius Fractures: A Randomized Clinical Trial - A Feasibility Trial [NCT03240471]40 participants (Actual)Interventional2017-10-01Completed
Randomized Trial of Bivalved and Circumferential Casting for Displaced Forearm Fractures in Children [NCT00823823]202 participants (Actual)Interventional2009-01-31Completed
A Prospective Randomized Controlled Trial Comparing Circumferential Casting Versus Splinting in Displaced Colles' Fractures [NCT00704743]Phase 3120 participants (Actual)Interventional1998-11-30Completed
Long Arm Vs Short Arm Fiberglass Cast for Treatment of Displaced Distal Radius Fractures: A Multi-Center Randomized Control Trial [NCT03835065]400 participants (Anticipated)Interventional2019-02-12Recruiting
Treatment of Paediatric Supracondylar Humeral Fracture With Cast Immobilization: A Randomized Controlled Trial - Hybrid Mesh Versus Fibreglass [NCT05430074]79 participants (Actual)Interventional2022-08-16Completed
Comparison of Volar-flexion, Ulnar-deviation and Functional Position Cast Immobilization in the Non-operative Treatment of Distal Radius Fracture in Elderly Patients: a Pragmatic Randomized Controlled Trial [NCT02894983]114 participants (Actual)Interventional2016-06-30Completed
Conservative Therapy of Proximal Phalanx Fractures - a Prospective Randomized Study Comparing the Lucerne Cast With Finger Splinting [NCT06022419]86 participants (Anticipated)Interventional2023-09-30Not yet recruiting
Non-displaced Scaphoid Fractures: A Clinical Trial of Cast Immobilization Including vs. Excluding the Thumb [NCT00916539]62 participants (Actual)Interventional2007-07-31Completed
A Pilot Placebo-Controlled, Randomized and Double Blind Monocenter Study Evaluating CACIPLIQ20 Efficacy On Neuropathic Perforating Foot Ulcer Healing In Diabetic Patients Wearing An Irremovable Windowed Resin Cast [NCT01474473]20 participants (Actual)Interventional2011-08-31Completed
Cast Sores With Waterproof Vs. Standard Cast Padding in a Pediatric Population [NCT00504855]84 participants (Actual)Interventional2007-07-31Terminated(stopped due to Staffing changes resulted in the expiration of IRB approval (2/15/12), and recruitment halted (n=84). IRB approval is now current for retrospective analysis.)
Comparative Outcomes Between Foot Cast and Short Leg Cast in the Patients With Acute Closed Fracture of Proximal Fifth Metatarsal (Zone II) [NCT03170687]72 participants (Actual)Interventional2017-01-24Completed
Overnight and In-house 3D-printed Patient-specific Casts for Non-operative Treatment of Distal Radius Fractures - a Prospective Randomized Trial [NCT05346926]40 participants (Actual)Interventional2020-03-01Completed
The Impact of Early ADL Participation on Functional Outcomes Post Distal Radius Fracture [NCT05650996]Early Phase 164 participants (Anticipated)Interventional2023-04-18Recruiting
Evaluation of Different Non-operative Treatment Protocols of ER-stress Negative Weber-B Unimalleolar Ankle Fractures. A Prospective Randomized Multicenter Trial. [NCT01758835]247 participants (Actual)Interventional2012-10-31Completed
Instant Total Contact Cast to Heal Diabetic Foot Ulcers [NCT01221207]225 participants (Actual)Interventional2010-10-31Completed
Short vs Long Arm Cast for Distal Radius Fractures: the Verona Trial. Randomized Clinical Trial to Assess the Efficacy of Short Arm Cast Versus Long Arm Cast in Conservative Management of Distal Radius Fractures [NCT03468023]353 participants (Actual)Interventional2017-03-15Completed
Waterproof Casting for Pediatric Distal Radius Fractures [NCT02095106]27 participants (Actual)Interventional2014-04-30Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

TrialOutcome
NCT00823823 (2) [back to overview]Compartment Syndrome or Neurovascular Compromise, Saw Burns and/or Lacerations
NCT00823823 (2) [back to overview]Loss of Radius Fracture Reduction
NCT00916539 (9) [back to overview]DASH Questionnaire
NCT00916539 (9) [back to overview]Extent of Union
NCT00916539 (9) [back to overview]Grip Strength
NCT00916539 (9) [back to overview]Modified Mayo Wrist Score
NCT00916539 (9) [back to overview]Range of Motion: Extension
NCT00916539 (9) [back to overview]Range of Motion: Flexion
NCT00916539 (9) [back to overview]Range of Motion: Radial Deviation
NCT00916539 (9) [back to overview]Range of Motion: Ulnar Deviation
NCT00916539 (9) [back to overview]Visual Analog Scale for Pain
NCT01221207 (1) [back to overview]Number of Participants Who Achieve Full Wound Healing.
NCT02095106 (6) [back to overview]Itchiness
NCT02095106 (6) [back to overview]Number of Participants Without Fracture Displacement at 8 Weeks Post Injury
NCT02095106 (6) [back to overview]Number of Participants Without Skin Irritation at the Time of Cast Removal (2 Weeks From Injury for First Intervention Type) and at Final Cast Removal (4 Weeks Post Injury for Second Intervention Type)
NCT02095106 (6) [back to overview]Pain
NCT02095106 (6) [back to overview]Patient Satisfaction
NCT02095106 (6) [back to overview]Physical Function
NCT02614690 (5) [back to overview]Average Time for First Follow-up Appointment
NCT02614690 (5) [back to overview]Cast Index
NCT02614690 (5) [back to overview]Complication Rate of the Cast Type
NCT02614690 (5) [back to overview]Number of Participants With Different Cast Complications
NCT02614690 (5) [back to overview]Number of Patients With Different Fracture Treatments

Compartment Syndrome or Neurovascular Compromise, Saw Burns and/or Lacerations

The number of participants that experienced compartment syndrome or neurovascular compromise, saw burn and/or laceration within four weeks post-randomization. (NCT00823823)
Timeframe: Up to 4 weeks post-randomization

,
Interventionparticipants (Number)
Compartment syndromeCast saw burnLacerationInfection
Bivalved Cast0000
Circumferential Cast0000

[back to top]

Loss of Radius Fracture Reduction

The number of participants that experienced radiographic loss of reduction by four weeks post-randomization. (NCT00823823)
Timeframe: 4 weeks post-randomization

,
Interventionparticipants (Number)
Loss of reductionNo Loss of reduction
Bivalved Cast3566
Circumferential Cast3566

[back to top]

DASH Questionnaire

This questionnaire measures the disability of the upper extremity. The disability scale is ranked from 0 (least disability) to 100 (most disability). (NCT00916539)
Timeframe: 6 months

Interventionunits on a scale (Mean)
Cast That Immobilizes the Thumb5
Cast That Does Not Immobilize the Thumb6

[back to top]

Extent of Union

The investigators looked at the extent of fracture union after immobilization. (NCT00916539)
Timeframe: 10 weeks

Interventionpercentage of union (Mean)
Cast That Immobilizes the Thumb70
Cast That Does Not Immobilize the Thumb85

[back to top]

Grip Strength

(NCT00916539)
Timeframe: 6 months

Interventionkilograms (Mean)
Cast That Immobilizes the Thumb40
Cast That Does Not Immobilize the Thumb37

[back to top]

Modified Mayo Wrist Score

The Modified Mayo Wrist Score evaluates wrist function after treatment. The total score ranges from 0 to 100, with higher scores indicating a better result. (NCT00916539)
Timeframe: 6 months

Interventionunits on a scale (Mean)
Cast That Immobilizes the Thumb92
Cast That Does Not Immobilize the Thumb87

[back to top]

Range of Motion: Extension

Range of motion measures the ability to move the wrist joint after injury. (NCT00916539)
Timeframe: 6 months

Interventiondegrees (Mean)
Cast That Immobilizes the Thumb68
Cast That Does Not Immobilize the Thumb67

[back to top]

Range of Motion: Flexion

Range of motion measures the ability to move the wrist joint after injury. (NCT00916539)
Timeframe: 6 months

Interventiondegrees (Mean)
Cast That Immobilizes the Thumb76
Cast That Does Not Immobilize the Thumb72

[back to top]

Range of Motion: Radial Deviation

Range of motion measures the ability to move the wrist joint after injury. (NCT00916539)
Timeframe: 6 months

Interventiondegrees (Mean)
Cast That Immobilizes the Thumb20
Cast That Does Not Immobilize the Thumb19

[back to top]

Range of Motion: Ulnar Deviation

Range of motion measures the ability to move the wrist joint after injury. (NCT00916539)
Timeframe: 6 months

Interventiondegrees (Mean)
Cast That Immobilizes the Thumb38
Cast That Does Not Immobilize the Thumb32

[back to top]

Visual Analog Scale for Pain

The pain scale measures the amount of pain on a scale from 0 to 10, where 10 indicates the most pain and 0 is no pain. (NCT00916539)
Timeframe: 6 months

Interventionunits on a scale (Mean)
Cast That Immobilizes the Thumb1.1
Cast That Does Not Immobilize the Thumb0.8

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Number of Participants Who Achieve Full Wound Healing.

"We will evaluate wounds at each clinical visit. An ulcer will be considered healed when it is fully epithelialized with no drainage." (NCT01221207)
Timeframe: 20 weeks

InterventionParticipants (Count of Participants)
Instant Total Contact Cast (ITCC)35
Device - Total Contact Cast (TCC)63
Removable Cast Walker (RCW)37

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Itchiness

"Itchiness was assessed using a visual analog scale at the Time of Cast Removal (2 Weeks From Injury for First Intervention Type) and at Final Cast Removal (4 Weeks Post Injury for Second Intervention Type). This scale consisted of a horizontal line of 100 mm presented to the patient, with the term no itching at the left end of the scale and the term strong itching appearing at the right end of the scale." (NCT02095106)
Timeframe: 4 weeks post-injury

Interventionunits on a scale (Mean)
Traditional Cast3.58
Waterproof Cast First3.2

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Number of Participants Without Fracture Displacement at 8 Weeks Post Injury

The radiographs at Week 8 were compared with initial radiographs to assess fracture displacement and angulation. (NCT02095106)
Timeframe: 8 weeks post injury

InterventionParticipants (Count of Participants)
Traditional Cast26
Waterproof Cast27

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Number of Participants Without Skin Irritation at the Time of Cast Removal (2 Weeks From Injury for First Intervention Type) and at Final Cast Removal (4 Weeks Post Injury for Second Intervention Type)

Skin changes were assessed after removal of the cast by an independent observer blinded to the type of cast that had been removed, with digital photographs obtained and analyzed using Image J Image Processing and Analysis Software to calculate the surface area of any described skin changes as a percentage of total skin area originally covered by the cast. (NCT02095106)
Timeframe: 4 weeks post-injury

InterventionParticipants (Count of Participants)
Traditional Cast26
Waterproof Cast First27

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Pain

"Pain was evaluated at the Time of Cast Removal (2 Weeks From Injury for First Intervention Type) and at Final Cast Removal (4 Weeks Post Injury for Second Intervention Type) using the Faces Pain Scale, a validated, highly reliable scale commonly used in the pediatric population. The Faces Pain Scale is a numerical self-report measure of pain intensity developed for children to score the sensation of pain from 0-10. Pictures of 6 cartoon faces ranging from neutral expression of no pain (0) to very much pain (10). Participant is asked to point to the face that shows how much participant hurts at the time of assessment [right now]." (NCT02095106)
Timeframe: 4 weeks post-injury

Interventionscore (Mean)
Traditional Cast0.8
Waterproof Cast0.6

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Patient Satisfaction

Patient satisfaction with the treatment was measured at the Time of Cast Removal (2 Weeks From Injury for First Intervention Type) and at Final Cast Removal (4 Weeks Post Injury for Second Intervention Type) with a survey that was presented to the patient or parent, asking them to rate the satisfaction on a scale from 1 (less satisfied) to 100 (more satisfied). (NCT02095106)
Timeframe: 4 weeks post-injury

Interventionunits on a scale (Mean)
Traditional Cast83.9
Waterproof Cast First84.0

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Physical Function

Physical function was evaluated using the Activities Scale for Kids - Performance (ASKp) at the Time of Cast Removal (2 Weeks From Injury for First Intervention Type) and at Final Cast Removal (4 Weeks Post Injury for Second Intervention Type) - to ensure that the measurement represented only the time in which the participant received each type of intervention. The ASKp is a validated, highly reliable, self-reported measure that assesses physical function in children between 5 and 15 years. Scale ranges from 0 to 100 with higher scores representing more physical activity. (NCT02095106)
Timeframe: 4 weeks post-injury

Interventionunits on a scale (Mean)
Traditional Cast78.06
Waterproof Cast85.74

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Average Time for First Follow-up Appointment

Average time from reduction and casting to the first follow-up visit. (NCT02614690)
Timeframe: 1-2 weeks

Interventiondays (Mean)
No Split Cast of Forearm Fractures5.9
Univalve Split Cast of Forearm Fractures6.4
Bivalve Split Cast of Forearm Fractures5.8

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Cast Index

The cast index is a measure of potential for cast failure described by Chess et al. in 1994. The cast index is calculated as the sagittal width measure divided by the coronal cast width measure at the fracture site. A ratio between these measures of 0.7 or greater for pediatric forearms is considered acceptable. For each patient in this study the cast index was calculated as described above. The average cast index for each of the 3 groups was then presented as the final result. (NCT02614690)
Timeframe: Immediately after cast application (<1 day)

Interventionratio (Mean)
No Split Cast of Forearm Fractures.88
Univalve Split Cast of Forearm Fractures.90
Bivalve Split Cast of Forearm Fractures.83

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Complication Rate of the Cast Type

This data will be able to help physicians and ER personnel help this patient population with the least number of cast complications and therefore allow for a more efficient use of resources since cast modifications could be minimized. Metrics used to characterize complications are the radiographic union used to determine speed of healing and the number of unplanned ER or clinic visits for cast modifications. (NCT02614690)
Timeframe: <60 days corresponding to total study time and consistent with outcome 6

Interventionparticipants (Number)
No Split Cast of Forearm Fractures9
Univalve Split Cast of Forearm Fractures12
Bivalve Split Cast of Forearm Fractures8

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Number of Participants With Different Cast Complications

(NCT02614690)
Timeframe: Day 1 to day 56

,,
Interventionparticipants (Number)
Compartment syndromeCast saw abrasionsUnplanned Office VisitsUnplanned Cast Modifications VisitsSurgical StablizationCast Wedged
Bivalve Split Cast of Forearm Fractures001106
No Split Cast of Forearm Fractures002304
Univalve Split Cast of Forearm Fractures0010110

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Number of Patients With Different Fracture Treatments

(NCT02614690)
Timeframe: 4 weeks

,,
Interventionparticipants (Number)
Wedge for loss of reductionSurgical stabilization
Bivalve Split Cast of Forearm Fractures60
No Split Cast of Forearm Fractures40
Univalve Split Cast of Forearm Fractures101

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