Dose Response Study of Nitisinone in Alkaptonuria

Summary

SONIA 1 is an international, multicentre, randomised, open-label, no-treatment controlled, parallel group, dose-response study to investigate the effect of once daily nitisinone on 24-hour urinary homogentisic acid excretion in patients with alkaptonuria after 4-weeks treatment. They study will identify the optimal dose to decrease urine homogentisic acid to near normal levels.

Timeline

Start

2013-05

Primary completion

2013-10

Completion

2013-12

Outcome

Met primary endpoint

paper A clear dose-response relationship was observed between nitisinone and the urinary excretion of HGA. PMID 25475116 ↗

Publications

• Milan AM, Hughes AT, Davison AS, Khedr M, Rovensky J, Psarelli EE, Cox TF, Rhodes NP, Gallagher JA, Ranganath LR. Quantification of the flux of tyrosine pathway metabolites during nitisinone treatment of Alkaptonuria. Sci Rep. 2019 Jul 11;9(1):10024. doi: 10.1038/s41598-019-46033-x.
• Ranganath LR, Milan AM, Hughes AT, Dutton JJ, Fitzgerald R, Briggs MC, Bygott H, Psarelli EE, Cox TF, Gallagher JA, Jarvis JC, van Kan C, Hall AK, Laan D, Olsson B, Szamosi J, Rudebeck M, Kullenberg T, Cronlund A, Svensson L, Junestrand C, Ayoob H, Timmis OG, Sireau N, Le Quan Sang KH, Genovese F, Braconi D, Santucci A, Nemethova M, Zatkova A, McCaffrey J, Christensen P, Ross G, Imrich R, Rovensky J. Suitability Of Nitisinone In Alkaptonuria 1 (SONIA 1): an international, multicentre, randomised, open-label, no-treatment controlled, parallel-group, dose-response study to investigate the effect of once daily nitisinone on 24-h urinary homogentisic acid excretion in patients with alkaptonuria after 4 weeks of treatment. Ann Rheum Dis. 2016 Feb;75(2):362-7. doi: 10.1136/annrheumdis-2014-206033. Epub 2014 Dec 4.

Drugs

Indications