Treatment of Wilson disease with ammonium tetrathiomolybdate - III. Initial therapy in a total of 55 neurologically affected patients and follow-up with zinc therapy
Treatment of Wilson disease with ammonium tetrathiomolybdate - III. Initial therapy in a total of 55 neurologically affected patients and follow-up with zinc therapy
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DOI:
10.1001/archneur.60.3.379
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发表时间:
2003-03-01
影响因子:
--
通讯作者:
Fink, JK
中科院分区:
文献类型:
--
作者:
Brewer, GJ;Hedera, P;Fink, JK
Background: It is unclear what anticopper drug to use for patients with Wilson disease who present with neurologic manifestations because penicillamine often makes them neurologically worse and zinc is slow acting.Objective: To evaluate the frequency of neurologic worsening and drug adverse effects with ammonium tetrathiomolybdate.Design: Open-label study of 55 untreated patients (22 of them new) presenting with neurologic Wilson disease treated with tetrathiomolybdate varying from 120 to 410 mg/d for 8 weeks and then followed up for 3 years. Neurologic function was assessed with scored neurologic and speech tests.Setting: A university hospital referral setting.Patients: All untreated, newly diagnosed patients with neurologic Wilson disease.Intervention: Treatment with tetrathiomolybdate.Main Outcome Measures: Neurologic function was evaluated by neurologic and speech examinations. Drug adverse effects were evaluated by complete blood cell counts and biochemical measures.Results: Only 2 (4%) of 55 patients treated with tetrathiomolybdate showed neurologic deterioration, compared with an estimated 50% of penicillamine-treated patients. Five of the 22 new patients exhibited bone marrow suppression and 3 had aminotransferase elevations. These numbers are higher than in the original 33 patients and appear to be due primarily to a more rapid dose escalation.Conclusions: Tetrathiomolybdate shows excellent efficacy in patients with Wilson disease who present with neurologic manifestations. With rapid escalation of dose, adverse effects from bone marrow suppression or aminotransferase elevations can occur.