Richard Court1, Chad M Centner2, Maxwell Chirehwa3, Lubbe Wiesner4, Paolo Denti5, Nihal de Vries6, Joseph Harding7, Tawanda Gumbo8, Gary Maartens9, Helen McIlleron10. 1. Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa. Electronic address: richard.court@uct.ac.za. 2. Division of Medical Microbiology, University of Cape Town, Cape Town, South Africa. Electronic address: chadc@nis.za. 3. Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa. Electronic address: maxwell.chirehwa@uct.ac.za. 4. Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa. Electronic address: lubbe.wiesner@uct.ac.za. 5. Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa. Electronic address: paolo.denti@uct.ac.za. 6. Brooklyn Chest Hospital, Cape Town, South Africa. Electronic address: Nihal.DeVries@westerncape.gov.za. 7. DP Marais Hospital, Cape Town, South Africa. Electronic address: jojo@mweb.co.za. 8. Quantitative Preclinical and Clinical Sciences Department, Praedicare, Dallas, TX, USA. Electronic address: rozvi1@praedicarelabs.com. 9. Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa; Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa. Electronic address: gary.maartens@uct.ac.za. 10. Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa; Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa. Electronic address: helen.mcilleron@uct.ac.za.
Abstract
BACKGROUND: Cycloserine, or its structural analogue terizidone, has been associated with neuropsychiatric toxicity (psychosis, depression, and neuropathy). Prospective clinical data on the incidence of and risk factors for neuropsychiatric toxicity in TB patients treated with cycloserine are limited. METHODS: A prospective evaluation of neuropsychiatric toxicity was performed using validated screening tools in patients with multidrug-resistant tuberculosis treated with terizidone. Cox proportional hazard modelling was performed to explore the effects of clinical variables and measures of cycloserine pharmacokinetics in plasma. RESULTS: A total 144 participants were recruited: 86 were male and 58 were female; their median age was 35.7 years and 91 (63%) were HIV-infected. Fifty-five (38%) participants developed at least one neuropsychiatric event (30 cases per 100 person-months): 50 (35%) neuropathy, 14 (10%) depression, and 11 (8%) psychosis. Neuropathy was independently associated with cycloserine clearance ((adjusted hazard ratio 0.34 (aHR), P = 0.03)) and high-dose pyridoxine (200 mg vs 150 mg daily, aHR: 2.79, P = 0.01). CONCLUSIONS: A high incidence of early neuropsychiatric toxicity was observed in this cohort of patients treated with terizidone. Cycloserine clearance and higher doses of pyridoxine are associated with incident or worsening peripheral neuropathy.
BACKGROUND:Cycloserine, or its structural analogue terizidone, has been associated with neuropsychiatric toxicity (psychosis, depression, and neuropathy). Prospective clinical data on the incidence of and risk factors for neuropsychiatric toxicity in TB patients treated with cycloserine are limited. METHODS: A prospective evaluation of neuropsychiatric toxicity was performed using validated screening tools in patients with multidrug-resistant tuberculosis treated with terizidone. Cox proportional hazard modelling was performed to explore the effects of clinical variables and measures of cycloserine pharmacokinetics in plasma. RESULTS: A total 144 participants were recruited: 86 were male and 58 were female; their median age was 35.7 years and 91 (63%) were HIV-infected. Fifty-five (38%) participants developed at least one neuropsychiatric event (30 cases per 100 person-months): 50 (35%) neuropathy, 14 (10%) depression, and 11 (8%) psychosis. Neuropathy was independently associated with cycloserine clearance ((adjusted hazard ratio 0.34 (aHR), P = 0.03)) and high-dose pyridoxine (200 mg vs 150 mg daily, aHR: 2.79, P = 0.01). CONCLUSIONS: A high incidence of early neuropsychiatric toxicity was observed in this cohort of patients treated with terizidone. Cycloserine clearance and higher doses of pyridoxine are associated with incident or worsening peripheral neuropathy.
Authors: J W C Alffenaar; S L Stocker; L Davies Forsman; A Garcia-Prats; S K Heysell; R E Aarnoutse; O W Akkerman; A Aleksa; R van Altena; W Arrazola de Oñata; P K Bhavani; N Van't Boveneind-Vrubleuskaya; A C C Carvalho; R Centis; J M Chakaya; D M Cirillo; J G Cho; L D Ambrosio; M P Dalcolmo; P Denti; K Dheda; G J Fox; A C Hesseling; H Y Kim; C U Köser; B J Marais; I Margineanu; A G Märtson; M Munoz Torrico; H M Nataprawira; C W M Ong; R Otto-Knapp; C A Peloquin; D R Silva; R Ruslami; P Santoso; R M Savic; R Singla; E M Svensson; A Skrahina; D van Soolingen; S Srivastava; M Tadolini; S Tiberi; T A Thomas; Z F Udwadia; D H Vu; W Zhang; S G Mpagama; T Schön; G B Migliori Journal: Int J Tuberc Lung Dis Date: 2022-06-01 Impact factor: 3.427