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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00661453
Other study ID # 25409
Secondary ID IND 79276
Status Completed
Phase Phase 1/Phase 2
First received April 14, 2008
Last updated June 1, 2015
Start date April 2008
Est. completion date June 2012

Study information

Verified date June 2015
Source University of Utah
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

This is a multi-center trial to test safety and evaluate early treatment intervention with valproic acid and carnitine in moderating SMA symptoms of Type I infants.


Description:

Spinal muscular atrophy (SMA) is a genetic disorder that results in severe muscle weakness. It is one of the most common conditions causing muscle weakness in children. Patients with SMA most often develop weakness as babies or young children. Most people with SMA gradually lose muscle strength and abilities over time. Babies with the severe infantile form of SMA, SMA type I, usually lose abilities and strength quickly over a few weeks or months.

Valproic acid (VPA) is a medicine that has been used for many years to treat patients with epilepsy. Recent research suggests that VPA may be able to upregulate expression of a backup copy of the SMN gene in SMA patient cell lines. In addition, some preliminary data suggests it may prolong survival in animal models of SMA. Because VPA can deplete carnitine in children with SMA Type I, carnitine is added to help prevent possible toxicity.

In this multi-center trial, we will evaluate the effects of VPA/carnitine on infants with SMA type I. A variety of outcome measures, including assessment of safety, will be performed at each study visit to follow the course of the disease. The protocol includes two baseline visits over a period of two weeks, two clinical assessments on medication at 3 and 6 months, and then 6 months additional followup via telephone. Total duration of the study will be approximately 12 months.


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date June 2012
Est. primary completion date May 2012
Accepts healthy volunteers No
Gender Both
Age group N/A to 12 Months
Eligibility Inclusion Criteria:

- Laboratory documentation of SMN mutation/deletion consistent with a genetic diagnosis of SMA

- Clinical diagnosis of SMA type I

- Age 2 weeks to 12 months

- Written informed consent of parents/guardian

Exclusion Criteria:

- Any clinical or laboratory evidence of hepatic or pancreatic insufficiency.

- Laboratory results drawn within 14 days prior to start of study drug demonstrating:

Liver transaminases (AST, ALT), lipase, amylase: > 1.5 x ULN White Blood Cell Count: < 3 Neutropenia: <1 Platelet: <100K Hematocrit: <30, persisting over a 30-day period

- Serious illness requiring systemic treatment and/or hospitalization within two weeks prior to study entry.

- Use of medications or supplements within 30 days of study enrollment that interfere with VPA or carnitine metabolism; that increase the potential risks of VPA or carnitine; or that are hypothesized to have a beneficial effect in SMA animal models or human neuromuscular disorders, including riluzole, valproic acid, hydroxyurea, oral use of albuterol, sodium phenylbutyrate, butyrate derivatives, creatinine, growth hormone, anabolic steroids, probenecid, oral or parenteral use of corticosteroids at entry, or agents anticipated to increase or decrease muscle strength or agents with presumed histone deacetylase (HDAC) inhibition.

- Infants who have participated in a treatment trial for SMA within 30 days of study entry or who will become enrollees in any other treatment trial during the course of this study.

- Unwillingness to travel for study assessments.

- Coexisting medical conditions that contradict use of VPA/carnitine or travel to and from study site.

Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Intervention

Drug:
Valproic Acid and Levocarnitine
Drug: Valproic Acid and Levocarnitine; syrup; dosage is by weight

Locations

Country Name City State
Canada Hospital Sainte-Justine Montreal Quebec
Germany Klinikum der Universität zu Köln Cologne
United States Johns Hopkins University Baltimore Maryland
United States Ohio State University Medical Center, Dept. of Neurology Columbus Ohio
United States Children's Hospital of Michigan Detroit Michigan
United States Duke University Medical Center Durham North Carolina
United States University of Wisconsin Children's Hospital Madison Wisconsin
United States University of Utah/Primary Children's Medical Center Salt Lake City Utah

Sponsors (3)

Lead Sponsor Collaborator
University of Utah Families of Spinal Muscular Atrophy, Sigma Tau Pharmaceuticals, Inc.

Countries where clinical trial is conducted

United States,  Canada,  Germany, 

References & Publications (42)

American Thoracic Society/European Respiratory Society. ATS/ERS Statement on respiratory muscle testing. Am J Respir Crit Care Med. 2002 Aug 15;166(4):518-624. — View Citation

Andreassi C, Angelozzi C, Tiziano FD, Vitali T, De Vincenzi E, Boninsegna A, Villanova M, Bertini E, Pini A, Neri G, Brahe C. Phenylbutyrate increases SMN expression in vitro: relevance for treatment of spinal muscular atrophy. Eur J Hum Genet. 2004 Jan;12(1):59-65. — View Citation

Andreassi C, Jarecki J, Zhou J, Coovert DD, Monani UR, Chen X, Whitney M, Pollok B, Zhang M, Androphy E, Burghes AH. Aclarubicin treatment restores SMN levels to cells derived from type I spinal muscular atrophy patients. Hum Mol Genet. 2001 Nov 15;10(24):2841-9. — View Citation

Böhmer T, Rydning A, Solberg HE. Carnitine levels in human serum in health and disease. Clin Chim Acta. 1974 Nov 20;57(1):55-61. — View Citation

Brahe C, Bertini E. Spinal muscular atrophies: recent insights and impact on molecular diagnosis. J Mol Med (Berl). 1996 Oct;74(10):555-62. Review. — View Citation

Brichta L, Hofmann Y, Hahnen E, Siebzehnrubl FA, Raschke H, Blumcke I, Eyupoglu IY, Wirth B. Valproic acid increases the SMN2 protein level: a well-known drug as a potential therapy for spinal muscular atrophy. Hum Mol Genet. 2003 Oct 1;12(19):2481-9. Epub 2003 Jul 29. — View Citation

Bromberg MB, Swoboda KJ. Motor unit number estimation in infants and children with spinal muscular atrophy. Muscle Nerve. 2002 Mar;25(3):445-7. — View Citation

Brooks H, Goldberg L, Holland R, Klein M, Sanzari N, DeFelice S. Carnitine-induced effects on cardiac and peripheral hemodynamics. J Clin Pharmacol. 1977 Oct;17(10 Pt 1):561-8. — View Citation

Campbell L, Potter A, Ignatius J, Dubowitz V, Davies K. Genomic variation and gene conversion in spinal muscular atrophy: implications for disease process and clinical phenotype. Am J Hum Genet. 1997 Jul;61(1):40-50. — View Citation

Chang JG, Hsieh-Li HM, Jong YJ, Wang NM, Tsai CH, Li H. Treatment of spinal muscular atrophy by sodium butyrate. Proc Natl Acad Sci U S A. 2001 Aug 14;98(17):9808-13. — View Citation

Christiansen RZ, Bremer J. Active transport of butyrobetaine and carnitine into isolated liver cells. Biochim Biophys Acta. 1976 Nov 2;448(4):562-77. — View Citation

Coulter DL. Carnitine deficiency: a possible mechanism for valproate hepatotoxicity. Lancet. 1984 Mar 24;1(8378):689. — View Citation

Coulter DL. Carnitine, valproate, and toxicity. J Child Neurol. 1991 Jan;6(1):7-14. Review. — View Citation

Crawford TO. From enigmatic to problematic: the new molecular genetics of childhood spinal muscular atrophy. Neurology. 1996 Feb;46(2):335-40. Review. — View Citation

Czeizel A, Hamula J. A hungarian study on Werdnig-Hoffmann disease. J Med Genet. 1989 Dec;26(12):761-3. — View Citation

Emery AE. Population frequencies of inherited neuromuscular diseases--a world survey. Neuromuscul Disord. 1991;1(1):19-29. Review. — View Citation

Evangeliou A, Vlassopoulos D. Carnitine metabolism and deficit--when supplementation is necessary? Curr Pharm Biotechnol. 2003 Jun;4(3):211-9. Review. — View Citation

Feldkötter M, Schwarzer V, Wirth R, Wienker TF, Wirth B. Quantitative analyses of SMN1 and SMN2 based on real-time lightCycler PCR: fast and highly reliable carrier testing and prediction of severity of spinal muscular atrophy. Am J Hum Genet. 2002 Feb;70(2):358-68. Epub 2001 Dec 21. — View Citation

Fischer U, Liu Q, Dreyfuss G. The SMN-SIP1 complex has an essential role in spliceosomal snRNP biogenesis. Cell. 1997 Sep 19;90(6):1023-9. — View Citation

Gilliam TC, Brzustowicz LM, Castilla LH, Lehner T, Penchaszadeh GK, Daniels RJ, Byth BC, Knowles J, Hislop JE, Shapira Y, et al. Genetic homogeneity between acute and chronic forms of spinal muscular atrophy. Nature. 1990 Jun 28;345(6278):823-5. — View Citation

Igarashi N, Sato T, Kyouya S. Secondary carnitine deficiency in handicapped patients receiving valproic acid and/or elemental diet. Acta Paediatr Jpn. 1990 Apr;32(2):139-45. — View Citation

Lefebvre S, Burlet P, Liu Q, Bertrandy S, Clermont O, Munnich A, Dreyfuss G, Melki J. Correlation between severity and SMN protein level in spinal muscular atrophy. Nat Genet. 1997 Jul;16(3):265-9. — View Citation

Lindstedt S, Lindstedt G. Distribution and Excretion of Carnitine in the Rat. Acta. Chem. Scand. 1961;15:701-702

Mailman MD, Heinz JW, Papp AC, Snyder PJ, Sedra MS, Wirth B, Burghes AH, Prior TW. Molecular analysis of spinal muscular atrophy and modification of the phenotype by SMN2. Genet Med. 2002 Jan-Feb;4(1):20-6. doi: 10.1097/00125817-200201000-00004. — View Citation

Melegh B, Pap M, Morava E, Molnar D, Dani M, Kurucz J. Carnitine-dependent changes of metabolic fuel consumption during long-term treatment with valproic acid. J Pediatr. 1994 Aug;125(2):317-21. — View Citation

Melki J, Lefebvre S, Burglen L, Burlet P, Clermont O, Millasseau P, Reboullet S, Bénichou B, Zeviani M, Le Paslier D, et al. De novo and inherited deletions of the 5q13 region in spinal muscular atrophies. Science. 1994 Jun 3;264(5164):1474-7. — View Citation

Merlini L, Stagni SB, Marri E, Granata C. Epidemiology of neuromuscular disorders in the under-20 population in Bologna Province, Italy. Neuromuscul Disord. 1992;2(3):197-200. — View Citation

Monani UR, Lorson CL, Parsons DW, Prior TW, Androphy EJ, Burghes AH, McPherson JD. A single nucleotide difference that alters splicing patterns distinguishes the SMA gene SMN1 from the copy gene SMN2. Hum Mol Genet. 1999 Jul;8(7):1177-83. — View Citation

Monani UR, Sendtner M, Coovert DD, Parsons DW, Andreassi C, Le TT, Jablonka S, Schrank B, Rossoll W, Prior TW, Morris GE, Burghes AH. The human centromeric survival motor neuron gene (SMN2) rescues embryonic lethality in Smn(-/-) mice and results in a mouse with spinal muscular atrophy. Hum Mol Genet. 2000 Feb 12;9(3):333-9. Erratum in: Hum Mol Genet. 2007 Nov 1;16(21):2648. Rossol, W [corrected to Rossoll, W]. — View Citation

Pearn J. Classification of spinal muscular atrophies. Lancet. 1980 Apr 26;1(8174):919-22. — View Citation

Pearn J. Incidence, prevalence, and gene frequency studies of chronic childhood spinal muscular atrophy. J Med Genet. 1978 Dec;15(6):409-13. — View Citation

Rebouche CJ, Engel AG. Carnitine metabolism and deficiency syndromes. Mayo Clin Proc. 1983 Aug;58(8):533-40. Review. — View Citation

Rebouche CJ, Paulson DJ. Carnitine metabolism and function in humans. Annu Rev Nutr. 1986;6:41-66. Review. — View Citation

Roberts DF, Chavez J, Court SD. The genetic component in child mortality. Arch Dis Child. 1970 Feb;45(239):33-8. — View Citation

Schaub J, Van Hoof F, Vis H. Inborn Errors of Metabolism. New York: Raven Press, 1991

Scriver C, Beautet A, Sly W, Valle D. The Metabolic Basis of Inherited Disease. New York: McGraw Hill, 1989

Standardization of Spirometry, 1994 Update. American Thoracic Society. Am J Respir Crit Care Med. 1995 Sep;152(3):1107-36. — View Citation

Swoboda KJ, Prior TW, Scott CB, McNaught TP, Wride MC, Reyna SP, Bromberg MB. Natural history of denervation in SMA: relation to age, SMN2 copy number, and function. Ann Neurol. 2005 May;57(5):704-12. — View Citation

Tein I, DiMauro S, Xie ZW, De Vivo DC. Valproic acid impairs carnitine uptake in cultured human skin fibroblasts. An in vitro model for the pathogenesis of valproic acid-associated carnitine deficiency. Pediatr Res. 1993 Sep;34(3):281-7. — View Citation

Tein I, Xie ZW. Reversal of valproic acid-associated impairment of carnitine uptake in cultured human skin fibroblasts. Biochem Biophys Res Commun. 1994 Oct 28;204(2):753-8. — View Citation

Thurston JH, Hauhart RE. Amelioration of adverse effects of valproic acid on ketogenesis and liver coenzyme A metabolism by cotreatment with pantothenate and carnitine in developing mice: possible clinical significance. Pediatr Res. 1992 Apr;31(4 Pt 1):419-23. — View Citation

Van Wouwe JP. Carnitine deficiency during valproic acid treatment. Int J Vitam Nutr Res. 1995;65(3):211-4. — View Citation

* Note: There are 42 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Laboratory Safety Data -2 weeks, + 2 weeks, 3 months, 6 months Yes
Primary Anthropometric Measures of Nutritional Status (Body Mass Index [BMI] Z-scores, Weight for Length Ratios, Lean/Fat Mass Via DEXA, Growth Parameters, and Triceps Skinfold Measures) -2 weeks, time 0, 3 months, 6 months Yes
Secondary Time to Death or Ventilator Dependence (Defined as >16 Hours/Day) monthly Yes
Secondary Primary Caregiver Functional Rating Scale for SMA Type I Subjects (PCFRS) time 0, and monthly for 12 months No
Secondary Functional Motor Assessments: TIMPSI Scores -2 weeks, time 0, 3 months, 6 months No
Secondary Quantitative SMN mRNA and Protein Measures -2 weeks, time 0 , 3 months, or 6 months No
Secondary Maximum Ulnar CMAP Amplitude/Area and MUNE -2 weeks, time 0, 3 months, 6 months No
Secondary Whole Body DEXA Scanning for Lean Body Mass and Total Bone Mineral Density/ Content -2 weeks or time 0, 3 months, 6 months Yes
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