Clinical trialNCT02221648TerminatedPhase 2Interventional

Investigation of Efficacy of Botulinum Toxin A (Dysport) in Chronic Low Back Pain

SponsorYale UniversityEnrollment43Lower Back Pain

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The scientific aim of this study is to investigate the efficacy of abobotulinumtoxinA (Dysport - Ipsen Pharmaceuticals) in chronic low back pain. The investigators hypothesis is that injection of Dysport brand of botulinum toxin type A into erector spinae muscles (extensors of the spine) can relieve low back pain through anti-spasm and analgesic effect of botulinum toxin.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Bahman Jabbari, MD
Yale University
Principal InvestigatorKOL profile →
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Yale Medical Group
New Haven, Connecticut, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

AbobotulinumtoxinA TreatmentPlacebo

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Dec 2012
Primary completion: 30 Sept 2015
Completion: 30 Sept 2015
Last update posted: 20 Jul 2016
Registered enrollment: 43
Registry id: NCT02221648

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.