Trial of Dichloroacetate in Pyruvate Dehydrogenase Complex Deficiency:
NCT ID: NCT02616484
Last Updated: 2025-05-04
Study Results
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Basic Information
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ACTIVE_NOT_RECRUITING
PHASE3
34 participants
INTERVENTIONAL
2020-07-14
2025-08-27
Brief Summary
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A novel Observer reported outcome (ObsRO) survey that is completed by study participant's parent/caregiver, is the efficacy outcome measure.
Funding Source - FDA OOPD
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Detailed Description
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Study participants complete Screening procedures at Visit 1 to confirm eligibility for study participation. Screening study procedures include medical history review and physical exam; blood and urine collection, and collection of cheek (buccal) cells; training to complete the ObsRO daily survey. The ObsRO is a survey developed for this study to evaluate how study participants are feeling and functioning in the home setting. The ObsRO survey is completed by the study participant parent/caregiver every day during both treatment periods (study medication and placebo) of study participation (approximately 9 months). During treatment period 1 and 2 (4 months of study medication and 5 months of placebo), the study participant will communicate with the study team at least 2 times per month to evaluate the child's level of health, and compliance with daily survey completion and taking the study medication.
Study participants complete Baseline study procedures at Visit 2 prior to randomization to treatment. Baseline study procedures include, medical history review and physical exam; blood and urine collection; 3 day food record. The study medication will be shipped to the study participants home each month of study participation.
Safety labs are completed during each randomization period (month 3 and month 5). The safety labs can be completed at the clinical trial site, or at any standard clinical laboratory.
Study participants will complete a study visit after each randomization period (month 5 and 9) to complete study assessments at the same clinical site. Visit study procedures include medical history review and physical exam; blood and urine collection; 3 day food record.
Study participants who complete both treatment periods and did not sustain serious adverse events attributable to DCA, will be offered continued access to investigational medication DCA through an open-label access program until the study concludes. Study participants must sign a separate consent form for participation in the open-label access phase of this clinical trial and must complete a study visit every 6 months at the same clinical site for study assessments that include medical history review and physical exam, blood and urine collection. The study medication will continue to be mailed to the study participant during the open-label phase at the same dose received during the blinded phase of the study.
Study participants will be stratified according to their predicted rate of DCA metabolism and clearance, based on genotyping prior to randomization (completed at visit 1 buccal cell collection).
Study participants will continue whatever diet and other "standard of care" is deemed appropriate by their local expert clinicians.
Conditions
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Study Design
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RANDOMIZED
CROSSOVER
TREATMENT
QUADRUPLE
Study Groups
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Dichloroacetate, then Placebo
This group will start on the Dichloroacetate (DCA) treatment which will last for 4 months. After 4 months a 1 month washout period will occur. After the 1 month the group will crossover to the placebo treatment for 4 months.
Participants will be genotyped to determine GSTZ1 (glutathione S-transferase Zeta-1) haplotype status, which will stratify this group into 1 of 2 dose regimens
Dichloroacetate (DCA)
Study medication DCA is an oral solution mixed with an artificial sweetener containing aspartame and strawberry extract (50mg/mL)
Participants will be genotyped to determine GSTZ1 (glutathione S-transferase Zeta-1) haplotype status, which will stratify this group into 1 of 2 dose regimens:
EGT carriers will receive 12 mg/kg/12hr DCA. EGT non-carriers will receive 6 mg/kg/12 hr DCA.
Placebo
Participants will receive the same volume of placebo in liquid form given during DCA treatment arm. Liquid will be an exact replication of DCA formulation with no DCA added.
Genotype
Participants will be genotyped to determine GSTZ1 haplotype status.
Placebo, then Dichloroacetate
This group will start on the placebo treatment which will last for 4 months. After 4 months a 1 month washout period will occur. After the 1 month the group will crossover to the Dichloroacetate (DCA) treatment for 4 months.
Participants will be genotyped to determine GSTZ1 (glutathione S-transferase Zeta-1) haplotype status, which will stratify this group into 1 of 2 dose regimens
Dichloroacetate (DCA)
Study medication DCA is an oral solution mixed with an artificial sweetener containing aspartame and strawberry extract (50mg/mL)
Participants will be genotyped to determine GSTZ1 (glutathione S-transferase Zeta-1) haplotype status, which will stratify this group into 1 of 2 dose regimens:
EGT carriers will receive 12 mg/kg/12hr DCA. EGT non-carriers will receive 6 mg/kg/12 hr DCA.
Placebo
Participants will receive the same volume of placebo in liquid form given during DCA treatment arm. Liquid will be an exact replication of DCA formulation with no DCA added.
Genotype
Participants will be genotyped to determine GSTZ1 haplotype status.
Interventions
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Dichloroacetate (DCA)
Study medication DCA is an oral solution mixed with an artificial sweetener containing aspartame and strawberry extract (50mg/mL)
Participants will be genotyped to determine GSTZ1 (glutathione S-transferase Zeta-1) haplotype status, which will stratify this group into 1 of 2 dose regimens:
EGT carriers will receive 12 mg/kg/12hr DCA. EGT non-carriers will receive 6 mg/kg/12 hr DCA.
Placebo
Participants will receive the same volume of placebo in liquid form given during DCA treatment arm. Liquid will be an exact replication of DCA formulation with no DCA added.
Genotype
Participants will be genotyped to determine GSTZ1 haplotype status.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Presence of characteristic clinical or metabolic features of pyruvate dehydrogenase complex deficiency (PDCD) and
* Presence of a known pathogenic mutation of a gene that is specifically associated with PDCD.
6 Months
17 Years
ALL
No
Sponsors
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Medosome Biotec LLC
INDUSTRY
Saol Therapeutics Inc
INDUSTRY
Responsible Party
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Principal Investigators
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Richard Neibeger, MD
Role: PRINCIPAL_INVESTIGATOR
University of Florida
Locations
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Children's Hospital of Orange County
Orange, California, United States
Stanford University
Stanford, California, United States
Children's National Medical Center
Washington D.C., District of Columbia, United States
University of Florida
Gainesville, Florida, United States
University Hospitals Cleveland Medical Center
Cleveland, Ohio, United States
Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States
Children's Hospital of Pittsburgh
Pittsburgh, Pennsylvania, United States
Baylor College of Medicine
Houston, Texas, United States
University of Utah
Salt Lake City, Utah, United States
Seattle Children's Hospital
Seattle, Washington, United States
Countries
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References
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Patel KP, O'Brien TW, Subramony SH, Shuster J, Stacpoole PW. The spectrum of pyruvate dehydrogenase complex deficiency: clinical, biochemical and genetic features in 371 patients. Mol Genet Metab. 2012 Jul;106(3):385-94. doi: 10.1016/j.ymgme.2012.03.017.
DeBrosse SD, Okajima K, Zhang S, Nakouzi G, Schmotzer CL, Lusk-Kopp M, Frohnapfel MB, Grahame G, Kerr DS. Spectrum of neurological and survival outcomes in pyruvate dehydrogenase complex (PDC) deficiency: lack of correlation with genotype. Mol Genet Metab. 2012 Nov;107(3):394-402. doi: 10.1016/j.ymgme.2012.09.001. Epub 2012 Sep 7.
Ferriero R, Manco G, Lamantea E, Nusco E, Ferrante MI, Sordino P, Stacpoole PW, Lee B, Zeviani M, Brunetti-Pierri N. Phenylbutyrate therapy for pyruvate dehydrogenase complex deficiency and lactic acidosis. Sci Transl Med. 2013 Mar 6;5(175):175ra31. doi: 10.1126/scitranslmed.3004986.
Stacpoole PW. The dichloroacetate dilemma: environmental hazard versus therapeutic goldmine--both or neither? Environ Health Perspect. 2011 Feb;119(2):155-8. doi: 10.1289/ehp.1002554. Epub 2010 Oct 4.
Evans OB, Stacpoole PW. Prolonged hypolactatemia and increased total pyruvate dehydrogenase activity by dichloroacetate. Biochem Pharmacol. 1982 Apr 1;31(7):1295-300. doi: 10.1016/0006-2952(82)90019-3.
Han Z, Berendzen K, Zhong L, Surolia I, Chouthai N, Zhao W, Maina N, Srivastava A, Stacpoole PW. A combined therapeutic approach for pyruvate dehydrogenase deficiency using self-complementary adeno-associated virus serotype-specific vectors and dichloroacetate. Mol Genet Metab. 2008 Apr;93(4):381-7. doi: 10.1016/j.ymgme.2007.10.131. Epub 2008 Feb 21.
Ishida N, Kitagawa M, Hatakeyama S, Nakayama K. Phosphorylation at serine 10, a major phosphorylation site of p27(Kip1), increases its protein stability. J Biol Chem. 2000 Aug 18;275(33):25146-54. doi: 10.1074/jbc.M001144200.
Lu KP, Liou YC, Zhou XZ. Pinning down proline-directed phosphorylation signaling. Trends Cell Biol. 2002 Apr;12(4):164-72. doi: 10.1016/s0962-8924(02)02253-5.
Virshup DM, Eide EJ, Forger DB, Gallego M, Harnish EV. Reversible protein phosphorylation regulates circadian rhythms. Cold Spring Harb Symp Quant Biol. 2007;72:413-20. doi: 10.1101/sqb.2007.72.048.
Moretto-Zita M, Jin H, Shen Z, Zhao T, Briggs SP, Xu Y. Phosphorylation stabilizes Nanog by promoting its interaction with Pin1. Proc Natl Acad Sci U S A. 2010 Jul 27;107(30):13312-7. doi: 10.1073/pnas.1005847107. Epub 2010 Jul 9.
Thomas LW, Lam C, Edwards SW. Mcl-1; the molecular regulation of protein function. FEBS Lett. 2010 Jul 16;584(14):2981-9. doi: 10.1016/j.febslet.2010.05.061. Epub 2010 Jun 11.
Henderson GH, Whalen PO, Darr RA, Curry SH, Derendorf H, Baumgartner TG, Stacpoole PW: Development of an oral drug formulation for dichloroacetate and thiamine. Drug Devel Indust Pharm, 20:2425-2437, 1994.
Chu PI, Curry SH, Baumgartner TG, Henderson GN, Stacpoole PW. Preparation and stability of intravenous solutions of sodium dichloroacetate (DCA). J Parenter Sci Technol. 1992 Jan-Feb;46(1):16-8.
Berendzen K, Theriaque DW, Shuster J, Stacpoole PW. Therapeutic potential of dichloroacetate for pyruvate dehydrogenase complex deficiency. Mitochondrion. 2006 Jun;6(3):126-35. doi: 10.1016/j.mito.2006.04.001. Epub 2006 May 3.
Stacpoole PW, Kerr DS, Barnes C, Bunch ST, Carney PR, Fennell EM, Felitsyn NM, Gilmore RL, Greer M, Henderson GN, Hutson AD, Neiberger RE, O'Brien RG, Perkins LA, Quisling RG, Shroads AL, Shuster JJ, Silverstein JH, Theriaque DW, Valenstein E. Controlled clinical trial of dichloroacetate for treatment of congenital lactic acidosis in children. Pediatrics. 2006 May;117(5):1519-31. doi: 10.1542/peds.2005-1226.
Stacpoole PW, Gilbert LR, Neiberger RE, Carney PR, Valenstein E, Theriaque DW, Shuster JJ. Evaluation of long-term treatment of children with congenital lactic acidosis with dichloroacetate. Pediatrics. 2008 May;121(5):e1223-8. doi: 10.1542/peds.2007-2062. Epub 2008 Apr 14.
Abdelmalak M, Lew A, Ramezani R, Shroads AL, Coats BS, Langaee T, Shankar MN, Neiberger RE, Subramony SH, Stacpoole PW. Long-term safety of dichloroacetate in congenital lactic acidosis. Mol Genet Metab. 2013 Jun;109(2):139-43. doi: 10.1016/j.ymgme.2013.03.019. Epub 2013 Apr 6.
Robinson BH. Lactic academia (disorders of pyruvate carboxylase, pyruvate dehydrogenase). In: Scriver CR, Beaudet AL, Sly WS, Valle D. (Eds.). The metabolic and molecular bases of inherited disease, seventh ed. McGraw-Hill, New York, pp. 1479-1499, 1995.
Ozlu N, Akten B, Timm W, Haseley N, Steen H, Steen JAJ. Phosphoproteomics. Wiley Interdiscip Rev Syst Biol Med. 2010 May-Jun;2(3):255-276. doi: 10.1002/wsbm.41.
U.S. Department of Health and Human Services FDA Center for Drug Evaluation and Research; U.S. Department of Health and Human Services FDA Center for Biologics Evaluation and Research; U.S. Department of Health and Human Services FDA Center for Devices and Radiological Health. Guidance for industry: patient-reported outcome measures: use in medical product development to support labeling claims: draft guidance. Health Qual Life Outcomes. 2006 Oct 11;4:79. doi: 10.1186/1477-7525-4-79.
Papadopoulos EJ, Patrick DL, Tassinari MS, Mulberg AE, Epps C, Pariser AR, Burke LB. Clinical outcome assessments for clinical trials in children. In Pediatric Drug Development: Concepts and Applications (Eds. AE Mulberg, D Murphy, J Dunne and LL Mathis. John Wiley & Sons, Ltd, Hoboken, NJ, pp. 539-548.
McLeod LD, Coon CD, Martin SA, Fehnel SE, Hays RD. Interpreting patient-reported outcome results: US FDA guidance and emerging methods. Expert Rev Pharmacoecon Outcomes Res. 2011 Apr;11(2):163-9. doi: 10.1586/erp.11.12.
Shroads AL, Langaee T, Coats BS, Kurtz TL, Bullock JR, Weithorn D, Gong Y, Wagner DA, Ostrov DA, Johnson JA, Stacpoole PW. Human polymorphisms in the glutathione transferase zeta 1/maleylacetoacetate isomerase gene influence the toxicokinetics of dichloroacetate. J Clin Pharmacol. 2012 Jun;52(6):837-49. doi: 10.1177/0091270011405664. Epub 2011 Jun 3.
Dunbar EM, Coats BS, Shroads AL, Langaee T, Lew A, Forder JR, Shuster JJ, Wagner DA, Stacpoole PW. Phase 1 trial of dichloroacetate (DCA) in adults with recurrent malignant brain tumors. Invest New Drugs. 2014 Jun;32(3):452-64. doi: 10.1007/s10637-013-0047-4. Epub 2013 Dec 3.
Shroads AL, Coats BS, McDonough CW, Langaee T, Stacpoole PW. Haplotype variations in glutathione transferase zeta 1 influence the kinetics and dynamics of chronic dichloroacetate in children. J Clin Pharmacol. 2015 Jan;55(1):50-5. doi: 10.1002/jcph.371. Epub 2014 Aug 6.
Stacpoole PW, Wright EC, Baumgartner TG, Bersin RM, Buchalter S, Curry SH, Duncan CA, Harman EM, Henderson GN, Jenkinson S, et al. A controlled clinical trial of dichloroacetate for treatment of lactic acidosis in adults. The Dichloroacetate-Lactic Acidosis Study Group. N Engl J Med. 1992 Nov 26;327(22):1564-9. doi: 10.1056/NEJM199211263272204.
Duncan GE, Perkins LA, Theriaque DW, Neiberger RE, Stacpoole PW. Dichloroacetate therapy attenuates the blood lactate response to submaximal exercise in patients with defects in mitochondrial energy metabolism. J Clin Endocrinol Metab. 2004 Apr;89(4):1733-8. doi: 10.1210/jc.2003-031684.
Stacpoole PW, deGrauw TJ, Feigenbaum AS, Hoppel C, Kerr DS, McCandless SE, Miles MV, Robinson BH, Tang PH. Design and implementation of the first randomized controlled trial of coenzyme CoQ(1)(0) in children with primary mitochondrial diseases. Mitochondrion. 2012 Nov;12(6):623-9. doi: 10.1016/j.mito.2012.09.005. Epub 2012 Sep 25.
Felitsyn NM, Henderson GN, James MO, Stacpoole PW. Liquid chromatography-tandem mass spectrometry method for the simultaneous determination of delta-ALA, tyrosine and creatinine in biological fluids. Clin Chim Acta. 2004 Dec;350(1-2):219-30. doi: 10.1016/j.cccn.2004.08.009.
Weber TA, Antognetti MR, Stacpoole PW. Caveats when considering ketogenic diets for the treatment of pyruvate dehydrogenase complex deficiency. J Pediatr. 2001 Mar;138(3):390-5. doi: 10.1067/mpd.2001.111817.
Shroads AL, Henderson GN, Cheung J, James MO, Stacpoole PW. Unified gas chromatographic-mass spectrometric method for quantitating tyrosine metabolites in urine and plasma. J Chromatogr B Analyt Technol Biomed Life Sci. 2004 Sep 5;808(2):153-61. doi: 10.1016/j.jchromb.2004.05.005.
Yan Z, Henderson GN, James MO, Stacpoole PW. Determination of dichloroacetate and its metabolites in human plasma by gas chromatography-mass spectrometry. J Chromatogr B Biomed Sci Appl. 1997 Dec 5;703(1-2):75-84. doi: 10.1016/s0378-4347(97)00404-0.
Martinelli D, Catteruccia M, Piemonte F, Pastore A, Tozzi G, Dionisi-Vici C, Pontrelli G, Corsetti T, Livadiotti S, Kheifets V, Hinman A, Shrader WD, Thoolen M, Klein MB, Bertini E, Miller G. EPI-743 reverses the progression of the pediatric mitochondrial disease--genetically defined Leigh Syndrome. Mol Genet Metab. 2012 Nov;107(3):383-8. doi: 10.1016/j.ymgme.2012.09.007. Epub 2012 Sep 10.
Shroads AL, Guo X, Dixit V, Liu HP, James MO, Stacpoole PW. Age-dependent kinetics and metabolism of dichloroacetate: possible relevance to toxicity. J Pharmacol Exp Ther. 2008 Mar;324(3):1163-71. doi: 10.1124/jpet.107.134593. Epub 2007 Dec 20.
Sperl W, Fleuren L, Freisinger P, Haack TB, Ribes A, Feichtinger RG, Rodenburg RJ, Zimmermann FA, Koch J, Rivera I, Prokisch H, Smeitink JA, Mayr JA. The spectrum of pyruvate oxidation defects in the diagnosis of mitochondrial disorders. J Inherit Metab Dis. 2015 May;38(3):391-403. doi: 10.1007/s10545-014-9787-3. Epub 2014 Dec 20.
Lehman, EL. Nonparametrics: Statistical methods Based on Ranks. (Page 173). Holden-Day, San Francisco, 1975.
Other Identifiers
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IRB201500698 - A - N
Identifier Type: -
Identifier Source: org_study_id
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