drugset / Trial / NCT02864498
Efficacy and Safety Study of Orally Administered DS107 in Moderate to Severe Atopic Dermatitis Patients
RandomizedParallel-groupDouble-blindTreatment
Summary
The purpose of this study is to determine whether orally administered DS107 (1g and 2g doses) is effective in the treatment of moderate to severe atopic dermatitis. Oral DS107 capsules will be administered for 8 weeks and will be compared against placebo. The study will enroll approximately 300 subjects.
Timeline
- Start
- 2017-01
- Primary completion
- 2018-06
- Completion
- 2018-06
Outcome
Missed primary endpoint
registry analysis (superiority test); 1g DS107 vs Placebo; p = 0.5570; General Linear Model NCT02864498 ↗
registry analysis (superiority test); 2g DS107 vs Placebo; p = 0.8774; General Linear Model NCT02864498 ↗
Publications
- Background Amagai Y, Oida K, Matsuda A, Jung K, Kakutani S, Tanaka T, Matsuda K, Jang H, Ahn G, Xia Y, Kawashima H, Shibata H, Matsuda H, Tanaka A. Dihomo-gamma-linolenic acid prevents the development of atopic dermatitis through prostaglandin D1 production in NC/Tnd mice. J Dermatol Sci. 2015 Jul;79(1):30-7. doi: 10.1016/j.jdermsci.2015.03.010. Epub 2015 Apr 6.
- Background Ashcroft DM, Dimmock P, Garside R, Stein K, Williams HC. Efficacy and tolerability of topical pimecrolimus and tacrolimus in the treatment of atopic dermatitis: meta-analysis of randomised controlled trials. BMJ. 2005 Mar 5;330(7490):516. doi: 10.1136/bmj.38376.439653.D3. Epub 2005 Feb 24.
- Background Bos JD, Kapsenberg ML, Smitt JH. Pathogenesis of atopic eczema. Lancet. 1994 May 28;343(8909):1338-41. doi: 10.1016/s0140-6736(94)92473-2. No abstract available.
- Background Charman CR, Venn AJ, Williams HC. The patient-oriented eczema measure: development and initial validation of a new tool for measuring atopic eczema severity from the patients' perspective. Arch Dermatol. 2004 Dec;140(12):1513-9. doi: 10.1001/archderm.140.12.1513.
- Background Desbois AP, Lawlor KC. Antibacterial activity of long-chain polyunsaturated fatty acids against Propionibacterium acnes and Staphylococcus aureus. Mar Drugs. 2013 Nov 13;11(11):4544-57. doi: 10.3390/md11114544.
- Background Carpenter JR, Roger JH, Kenward MG. Analysis of longitudinal trials with protocol deviation: a framework for relevant, accessible assumptions, and inference via multiple imputation. J Biopharm Stat. 2013;23(6):1352-71. doi: 10.1080/10543406.2013.834911.
- Background Williams H, Flohr C. How epidemiology has challenged 3 prevailing concepts about atopic dermatitis. J Allergy Clin Immunol. 2006 Jul;118(1):209-13. doi: 10.1016/j.jaci.2006.04.043. Epub 2006 Jun 9.
- Background Kawashima H, Tateishi N, Shiraishi A, Teraoka N, Tanaka T, Tanaka A, Matsuda H, Kiso Y. Oral administration of dihomo-gamma-linolenic acid prevents development of atopic dermatitis in NC/Nga mice. Lipids. 2008 Jan;43(1):37-43. doi: 10.1007/s11745-007-3129-2. Epub 2007 Nov 6.
- Background Silverberg JI, Hanifin JM. Adult eczema prevalence and associations with asthma and other health and demographic factors: a US population-based study. J Allergy Clin Immunol. 2013 Nov;132(5):1132-8. doi: 10.1016/j.jaci.2013.08.031. Epub 2013 Oct 4.
- Background Simpson EL. Atopic dermatitis: a review of topical treatment options. Curr Med Res Opin. 2010 Mar;26(3):633-40. doi: 10.1185/03007990903512156.
- Background Suarez AL, Feramisco JD, Koo J, Steinhoff M. Psychoneuroimmunology of psychological stress and atopic dermatitis: pathophysiologic and therapeutic updates. Acta Derm Venereol. 2012 Jan;92(1):7-15. doi: 10.2340/00015555-1188.
- Background Kapp A. The role of eosinophils in the pathogenesis of atopic dermatitis--eosinophil granule proteins as markers of disease activity. Allergy. 1993 Jan;48(1):1-5. doi: 10.1111/j.1398-9995.1993.tb02167.x.
- Background Leung DY, Bieber T. Atopic dermatitis. Lancet. 2003 Jan 11;361(9352):151-60. doi: 10.1016/S0140-6736(03)12193-9.
- Background Eichenfield LF, Tom WL, Berger TG, Krol A, Paller AS, Schwarzenberger K, Bergman JN, Chamlin SL, Cohen DE, Cooper KD, Cordoro KM, Davis DM, Feldman SR, Hanifin JM, Margolis DJ, Silverman RA, Simpson EL, Williams HC, Elmets CA, Block J, Harrod CG, Smith Begolka W, Sidbury R. Guidelines of care for the management of atopic dermatitis: section 2. Management and treatment of atopic dermatitis with topical therapies. J Am Acad Dermatol. 2014 Jul;71(1):116-32. doi: 10.1016/j.jaad.2014.03.023. Epub 2014 May 9.
- Background Gutfreund K, Bienias W, Szewczyk A, Kaszuba A. Topical calcineurin inhibitors in dermatology. Part I: Properties, method and effectiveness of drug use. Postepy Dermatol Alergol. 2013 Jun;30(3):165-9. doi: 10.5114/pdia.2013.35619. Epub 2013 Jun 20.
- Background Reynolds NJ, Franklin V, Gray JC, Diffey BL, Farr PM. Narrow-band ultraviolet B and broad-band ultraviolet A phototherapy in adult atopic eczema: a randomised controlled trial. Lancet. 2001 Jun 23;357(9273):2012-6. doi: 10.1016/S0140-6736(00)05114-X.
- Background Iversen L, Fogh K, Kragballe K. Effect of dihomogammalinolenic acid and its 15-lipoxygenase metabolite on eicosanoid metabolism by human mononuclear leukocytes in vitro: selective inhibition of the 5-lipoxygenase pathway. Arch Dermatol Res. 1992;284(4):222-6. doi: 10.1007/BF00375798.
- Background Kawashima H, Toyoda-Ono Y, Suwa Y, Kiso Y. Subchronic (13-week) oral toxicity study of dihomo-gamma-linolenic acid (DGLA) oil in rats. Food Chem Toxicol. 2009 Jun;47(6):1280-6. doi: 10.1016/j.fct.2009.03.001. Epub 2009 Mar 9.
- Background Futamura M, Leshem YA, Thomas KS, Nankervis H, Williams HC, Simpson EL. A systematic review of Investigator Global Assessment (IGA) in atopic dermatitis (AD) trials: Many options, no standards. J Am Acad Dermatol. 2016 Feb;74(2):288-94. doi: 10.1016/j.jaad.2015.09.062. Epub 2015 Dec 11.
- Background Hanifin JM, Thurston M, Omoto M, Cherill R, Tofte SJ, Graeber M. The eczema area and severity index (EASI): assessment of reliability in atopic dermatitis. EASI Evaluator Group. Exp Dermatol. 2001 Feb;10(1):11-8. doi: 10.1034/j.1600-0625.2001.100102.x.
- Background Phan NQ, Blome C, Fritz F, Gerss J, Reich A, Ebata T, Augustin M, Szepietowski JC, Stander S. Assessment of pruritus intensity: prospective study on validity and reliability of the visual analogue scale, numerical rating scale and verbal rating scale in 471 patients with chronic pruritus. Acta Derm Venereol. 2012 Sep;92(5):502-7. doi: 10.2340/00015555-1246.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | DIHOMO-GAMMA-LINOLENIC ACID | Small molecule | 1 g | Oral |
| Subject | DIHOMO-GAMMA-LINOLENIC ACID | Small molecule | 2 g | Oral |