Incidence of adverse events after high doses of onabotulinumtoxina for multiple indications

Umaphorn Nuanthaisong, Nitya E. Abraham, Howard B. Goldman

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Objective To determine the occurrence of all treatment-related adverse events (AEs), especially life-threatening AEs, after the injection of a cumulative dose of >360 units of onabotulinumtoxinA for multiple indications (neurogenic detrusor overactivity, lower limb spasticity, and so forth) within a 3-month interval.

Methods This is a retrospective cohort study of patients who received >360 units of onabotulinumtoxinA within a 3-month interval, with at least 1 urologic indication for injection, between January 1, 2002 and January 1, 2013. The rate of treatment-related AE up to 8 days after injection and life-threatening AE up to 90 days after injection was compared between the injection sessions below and exceeding the maximum dosage recommendations.

Results Thirteen patients met the study criteria. Eleven were female patients and had a diagnosis of multiple sclerosis. Sixty-five injection sessions involved >360 units of onabotulinumtoxinA administered within a 90-day interval. Median interval between injections was 54 days (interquartile range [IQR], 30-71 days) and median dose administered was 800 units (IQR, 600-1000 units). Seventy injection sessions involved 90 days after prior injection. Median interval between these injections was 113 days (IQR, 97-158 days) and median dose administered was 200 units (IQR, 100-300 units). The maximum cumulative dosage injected was 1900 units (1500 units for lower extremities and 400 units for bladder). This patient did not experience any AE. There was a total of 6 AEs (general and/or extremity weakness or leg pain) that occurred in 4 patients, of a total of 183 injection sessions. These AEs all eventually resolved. There were no life-threatening AEs in either group.

Conclusion This is the first report of patients receiving >360 cumulative units of onabotulinumtoxinA within a 3-month interval for multiple indications. There were no life-threatening AEs. This study provides preliminary data on administration of high doses of onabotulinumtoxinA for multiple indications.

Original languageEnglish (US)
Pages (from-to)1044-1048
Number of pages5
JournalUrology
Volume84
Issue number5
DOIs
StatePublished - Nov 1 2014
Externally publishedYes

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Injections
Incidence
Lower Extremity
onabotulinumtoxinA
Multiple Sclerosis
Leg
Urinary Bladder
Cohort Studies
Extremities
Retrospective Studies
Pain
Therapeutics

ASJC Scopus subject areas

  • Urology
  • Medicine(all)

Cite this

Incidence of adverse events after high doses of onabotulinumtoxina for multiple indications. / Nuanthaisong, Umaphorn; Abraham, Nitya E.; Goldman, Howard B.

In: Urology, Vol. 84, No. 5, 01.11.2014, p. 1044-1048.

Research output: Contribution to journalArticle

Nuanthaisong, Umaphorn ; Abraham, Nitya E. ; Goldman, Howard B. / Incidence of adverse events after high doses of onabotulinumtoxina for multiple indications. In: Urology. 2014 ; Vol. 84, No. 5. pp. 1044-1048.
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N2 - Objective To determine the occurrence of all treatment-related adverse events (AEs), especially life-threatening AEs, after the injection of a cumulative dose of >360 units of onabotulinumtoxinA for multiple indications (neurogenic detrusor overactivity, lower limb spasticity, and so forth) within a 3-month interval.Methods This is a retrospective cohort study of patients who received >360 units of onabotulinumtoxinA within a 3-month interval, with at least 1 urologic indication for injection, between January 1, 2002 and January 1, 2013. The rate of treatment-related AE up to 8 days after injection and life-threatening AE up to 90 days after injection was compared between the injection sessions below and exceeding the maximum dosage recommendations.Results Thirteen patients met the study criteria. Eleven were female patients and had a diagnosis of multiple sclerosis. Sixty-five injection sessions involved >360 units of onabotulinumtoxinA administered within a 90-day interval. Median interval between injections was 54 days (interquartile range [IQR], 30-71 days) and median dose administered was 800 units (IQR, 600-1000 units). Seventy injection sessions involved 90 days after prior injection. Median interval between these injections was 113 days (IQR, 97-158 days) and median dose administered was 200 units (IQR, 100-300 units). The maximum cumulative dosage injected was 1900 units (1500 units for lower extremities and 400 units for bladder). This patient did not experience any AE. There was a total of 6 AEs (general and/or extremity weakness or leg pain) that occurred in 4 patients, of a total of 183 injection sessions. These AEs all eventually resolved. There were no life-threatening AEs in either group.Conclusion This is the first report of patients receiving >360 cumulative units of onabotulinumtoxinA within a 3-month interval for multiple indications. There were no life-threatening AEs. This study provides preliminary data on administration of high doses of onabotulinumtoxinA for multiple indications.

AB - Objective To determine the occurrence of all treatment-related adverse events (AEs), especially life-threatening AEs, after the injection of a cumulative dose of >360 units of onabotulinumtoxinA for multiple indications (neurogenic detrusor overactivity, lower limb spasticity, and so forth) within a 3-month interval.Methods This is a retrospective cohort study of patients who received >360 units of onabotulinumtoxinA within a 3-month interval, with at least 1 urologic indication for injection, between January 1, 2002 and January 1, 2013. The rate of treatment-related AE up to 8 days after injection and life-threatening AE up to 90 days after injection was compared between the injection sessions below and exceeding the maximum dosage recommendations.Results Thirteen patients met the study criteria. Eleven were female patients and had a diagnosis of multiple sclerosis. Sixty-five injection sessions involved >360 units of onabotulinumtoxinA administered within a 90-day interval. Median interval between injections was 54 days (interquartile range [IQR], 30-71 days) and median dose administered was 800 units (IQR, 600-1000 units). Seventy injection sessions involved 90 days after prior injection. Median interval between these injections was 113 days (IQR, 97-158 days) and median dose administered was 200 units (IQR, 100-300 units). The maximum cumulative dosage injected was 1900 units (1500 units for lower extremities and 400 units for bladder). This patient did not experience any AE. There was a total of 6 AEs (general and/or extremity weakness or leg pain) that occurred in 4 patients, of a total of 183 injection sessions. These AEs all eventually resolved. There were no life-threatening AEs in either group.Conclusion This is the first report of patients receiving >360 cumulative units of onabotulinumtoxinA within a 3-month interval for multiple indications. There were no life-threatening AEs. This study provides preliminary data on administration of high doses of onabotulinumtoxinA for multiple indications.

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