NCT03325374

Brief Summary

The research focuses on Cauda Equina Syndrome (CES) which describes damage to the nerves in the lower back which supply bladder, bowels, sexual function and the legs usually from slipped discs in the spine. CES is as common as multiple sclerosis and is diagnosed using an MRI scan of the spine, 'scan positive' CES. However, about 50% of people presenting with the symptoms of CES have MRI scans which do not explain their symptoms, 'scan negative' patients. The BLB study will be the first large clinical study comparing patients with 'scan positive' and 'scan negative' CES. All patients admitted to the Western General Hospital, Edinburgh with possible CES will be invited to participate. The study consists of detailed history taking, examination and a questionnaire following up patient's symptoms at three months. The study aims to see what differences exist between the 'scan positive' and 'scan negative' groups, help doctors understand more about the outcomes of both groups and discover the number of patients with 'scan negative' CES who have functional disorders (previously called medically unexplained or conversion disorders) or undiagnosed neurological disorders.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Nov 2015

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2015

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

April 6, 2017

Completed
7 months until next milestone

First Posted

Study publicly available on registry

October 30, 2017

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2018

Completed
1.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2020

Completed
Last Updated

April 7, 2020

Status Verified

April 1, 2020

Enrollment Period

2.5 years

First QC Date

April 6, 2017

Last Update Submit

April 6, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • What proportion of patients with 'scan negative' CES have a functional disorder by clinical consensus.

    Percent of patients with 'scan negative' CES and a functional disorder.

    Nov 15-Aug 18

Secondary Outcomes (9)

  • Demographics (age, gender, work status) in patients with 'scan positive' and 'scan negative' CES.

    Nov 15-Aug 18

  • Neurological examination findings, using Medical Research Council (MRC) grading and standardised sensory and reflex examinations in patients with 'scan positive' and 'scan negative' CES.

    Nov 15-Aug 18

  • Hospital Anxiety and Depression (HADs) scores and Structured clinical interview for DSM (SCID) findings in patients with 'scan positive' and 'scan negative' CES at onset of symptoms and HADs scores three months after symptom onset.

    Nov 15-Aug 18

  • Patient priorities after discharge rated using a visual analogue scale. Options will be pain, bladder symptoms, bowel symptoms, sexual function, sensory disturbance, financial, worry/stress/low mood.

    Nov 15-Aug 18

  • The number of patients with 'scan negative' CES have other neurological disease causing their symptoms.

    Nov 15-Aug 18

  • +4 more secondary outcomes

Study Arms (1)

BLB patients

Patients admitted for urgent MRI with possible cauda equina syndrome will be consented for questionnaires and examination.

Other: Questionnaires and examination

Interventions

Patients with in the BLB patients study will have interview and questionnaire carried out.

BLB patients

Eligibility Criteria

Age16 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

161 participants admitted to the Western General Hospital, Edinburgh with possible CES.

You may qualify if:

  • Ability to give informed consent
  • Able to complete online or paper questionnaire.
  • Patients admitted to the regional neurosurgical unit, Western General Hospital, Edinburgh with suspected cauda equina syndrome for an MRI scan. Demographic data from all patients attending any NHS Lothian site who have an MRI scan for suspected CES.

You may not qualify if:

  • Age less than 16
  • Inability to communicate (e.g. do not speak English)
  • Inability to complete written or oral surveys or give informed consent
  • Age over 100. The upper age limit is set at 100 to allow the greatest number of participants the opportunity to take part. As the study is a follow up study concerns about mortality and high drop out in this age group led to the upper limit of 100 being set.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Neurosciences, Western General Hospital

Edinburgh, EH4 2XU, United Kingdom

Location

Biospecimen

Retention: SAMPLES WITH DNA

Blood for genetic storage (DNA) and later study will be requested from all patients. No tests will be done initially. We have an excellent opportunity to better understand the genetics of degenerative disc disease and/or functional disorders using the comparison of DNA between the 'scan positive' and 'scan negative' group.

MeSH Terms

Conditions

Cauda Equina SyndromeConversion Disorder

Interventions

Surveys and QuestionnairesRestraint, Physical

Condition Hierarchy (Ancestors)

Nerve Compression SyndromesPeripheral Nervous System DiseasesNeuromuscular DiseasesNervous System DiseasesPolyradiculoneuropathyPolyneuropathiesSomatoform DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationPublic HealthEnvironment and Public HealthBehavior ControlTherapeuticsImmobilization

Study Officials

  • Ingrid Hoeritzauer

    University of Edinburgh

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 6, 2017

First Posted

October 30, 2017

Study Start

November 1, 2015

Primary Completion

May 1, 2018

Study Completion

January 1, 2020

Last Updated

April 7, 2020

Record last verified: 2020-04

Data Sharing

IPD Sharing
Will not share

Locations