Orphalan announces publication of results from the CHELATE


Orphalan announces publication of results from the CHELATE trial
in The Lancet Gastroenterology & Hepatology

Trial supported Orphalan’s profitable utility to the United States Food and Drug Administration (FDA) for approval of Cuvrior (trientine tetrahydrochloride) for Wilson’s illness

Paris, France 30 September, 2022 – Orphalan SA (“Orphalan” or “the Company”), a world orphan drug improvement and commercialization firm, immediately announces the publication of the Company’s part III CHELATE trial in The Lancet Gastroenterology & Hepatology1, presenting the efficacy and tolerability of trientine tetrahydrochloride for the remedy of Wilson’s illness over a interval of one 12 months.

The CHELATE trial was the first potential randomized trial evaluating penicillamine with trientine tetrahydrochloride (TETA-4HCl), and supported Orphalan’s profitable utility to the United States Food and Drug Administration (FDA) for approval of Cuvrior™, an oral TETA-4HCl formulation for the remedy of grownup sufferers with steady Wilson’s illness who’re de-coppered and tolerant to penicillamine. It was the first remedy for Wilson’s illness to be accepted by the FDA in over 5 a long time.

During the trial, an progressive assay was developed to measure non-caeruloplasmin sure copper (NCC), the free and probably poisonous pool of copper in the blood. This assay measures NCC by separation and quantification of caeruloplasmin and its sure copper in serum with larger accuracy and precision than strategies utilized in medical follow immediately.

Using this NCC measurement, TETA-4HCl was decided to be non-inferior to penicillamine at the major endpoint of the research (24 weeks), with the similar statement at the finish of the extension part of the research (one 12 months from randomization) in sufferers beforehand receiving upkeep penicillamine remedy.

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Trial design and results

53 grownup sufferers receiving upkeep penicillamine remedy for no less than a 12 months, had been randomized to modify to TETA-4HCl (n=26) or proceed with penicillamine (n=27) as soon as stability was confirmed by three unbiased Wilson’s illness consultants. These consultants, blinded to remedy allocation, re-assessed affected person information to find out medical stability, at the major endpoint (24 weeks) and at the finish of an extension interval (48 weeks).

After 24 weeks, the imply distinction in serum NCC by speciation assay between the penicillamine group and TETA4 group was –9·1 micrograms per liter (mcg/L; 95% CI –24·2 to six·1), with the decrease restrict of the 95% CI inside the outlined non-inferiority margin of minus (-50 mcg/L). The imply distinction in serum NCC remained non-inferior at 48 weeks.

All evaluations of affected person well-being throughout the research (measured utilizing the Unified Wilson’s Disease Rating Score, a standardized neurological analysis, cognition testing, and clinician world impression of change) remained unchanged from baseline to each 24- and 48-week endpoints. In addition, the three unbiased Wilson’s illness consultants confirmed all individuals as steady at each the major endpoint and at 48 weeks.

TETA-4HCl was properly tolerated with no critical adversarial occasions (SAE) reported, in contrast with 5 SAEs for penicillamine in the 48-week research interval.

Dr Omar Kamlin, Senior Medical Director, Orphalan, commented: Wilson’s disease is a rare inherited disorder of copper transport, primarily affecting the liver and brain, which can be fatal if left untreated. The results of the CHELATE trial mark an important milestone for the Wilson’s disease community, providing further evidence on the efficacy of trientine tetrahydrochloride for prescribing physicians and evidence-based options for patients. Our thanks go to everyone who supported the trial, especially the patients who participated for the benefit of this and future generations of individuals with Wilson’s disease.

Professor Michael Schilsky, Director, Center for Excellence for Wilson Disease at Yale, acknowledged: This is an important study and underlines the need for more options for patients with this rare and challenging disease. The non-inferiority of TETA4HCl to penicillamine over 48 weeks is extremely reassuring and raises the question of whether penicillamine should remain first line therapy for patients with Wilson’s disease who are on maintenance therapy after their initial de-coppering phase. We look forward to doing more research, especially with Cuvrior in realworld settings, and evaluating the potential of the NCC assay as a tool to monitor and guide therapeutic decision making and building on the findings published in The Lancet Gastroenterology & Hepatology.”


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About Orphalan

Orphalan is a pioneering, worldwide orphan drug improvement and commercialization firm. Founded in 2011, the firm develops and delivers progressive therapies for folks dwelling with orphan illnesses, and is initially targeted on Wilson’s Disease, a uncommon genetic dysfunction that may be life-threatening if untreated. Orphalan commercializes Cuprior®, its trientine tetrahydrochloride product for the remedy of Wilson’s illness in Europe, and shall be launching Cuvrior™, just lately accepted by the FDA, in the US. For extra data go to www.orphalan.com and comply with us on LinkedIn.

For extra data, please contact:


Géraldine van den Broek, Head of Corporate & BD

Tel: +33 (0)1 42 49 82 64


Consilium Strategic Communications:

Mary-Jane Elliott, Tracy Cheung, Davide Salvi

Tel: +44 (0) 203 709 5700


1 Trientine tetrahydrochloride versus penicillamine for upkeep remedy in Wilson illness (CHELATE): a randomised, open-label, non-inferiority, part 3 trial, https://www.thelancet.com/journals/langas/article/PIIS2468-1253(22)00270-9/fulltext

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