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Lumbar RadiculopathyPhase 1/2SALIENTNCT03952377

Safety and Efficacy of SX600 Administered by Lumbosacral Transforaminal Epidural Injection for Radicular Pain

A Phase 1/2 study testing SX600 in people with Lumbar Radiculopathy, run by SpineThera Australia PTY LTD at 10 sites in Australia.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a Phase I/II, double-blind, parallel-group, randomized, placebo-controlled multi-centre trial in 180 patients randomized 1:1:1 to receive the IMP (Dexamethasone acetate microspheres for extended-release injectable micro-suspension, SX600 at 12.5 mg or 25.0 mg) or Placebo (0.9% Sodium Chloride for Injection… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Lumbar Radiculopathy
What is being tested?
SX600
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
56 participants
Where
10 sitesAustralia
Study dates
4 Nov 2019to 21 Jun 2022
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Main Inclusion Criteria:

  • Adult aged 18 to 65 years, capable of providing informed consent, capable of complying with the outcome instruments, and meeting the attendance requirements for review as defined in the study
  • Presenting with a history of radicular pain of duration of 4 weeks to 6 months, having failed conservative therapy.
  • Mean Worst Daily Leg Pain score of ≥5.0 and ≤9.0
  • Women of child-bearing potential must use a medically accepted method of contraception for the duration of the study plus 30 days and register a negative pregnancy test prior to dosing

Main Exclusion Criteria:

  • Documented history of allergy or intolerance to components of the Investigational Medicinal Product, relevant radiologic contrast media, or local anaesthetics
  • Is pregnant or lactating
  • Has been taking corticosteroid medications routinely in the past 6 months or has received an epidural corticosteroid injection within 12 weeks of screening
  • Has a BMI greater than 40 kg/m2
  • Has radiological evidence of clinically significant foraminal stenosis at L4-L5 or L5-S1 or of clinically significant spinal stenosis, or spondylolisthesis (Grade 2 or higher). (Note, asymptomatic foraminal stenosis at other spinal levels is not excluded).
  • Has Diabetes Mellitus (Type 1 or Type 2)- prior confirmed HbA1c or OGTT
  • Has a history of significant leg pain unrelated to disc herniation that would significantly compromise assessment of back or leg radicular pain
  • Has had lumbar back surgery
  • Has received an implantable device for pain management

Trial locations and contacts

10 sites in 1 country.

10 sites in 1 country

Australia10 sites
  • Research Site 03

    Adelaide

  • Research Site 12

    Adelaide

  • Research Site 10

    Blacktown

  • Research Site 06

    Frankston

  • Research Site 05

    Newcastle

  • Research Site 02

    Sydney

  • Research Site 04

    Sydney

  • Research Site 09

    Sydney

  • Research Site 11

    Sydney

  • Research Site 08

    Townsville

Other trials in Australia

About this study

Official title: A Double-Blind, Randomized, Placebo-Controlled, Parallel-Group Phase I/II, First-in-Human Study to Assess the Safety and Efficacy of Two Doses of SX600 Administered by Lumbosacral Transforaminal Epidural Injection in Patients With Radicular Pain Secondary to Lumbar Intervertebral Disc Herniation

This is a Phase I/II, double-blind, parallel-group, randomized, placebo-controlled multi-centre trial in 180 patients randomized 1:1:1 to receive the IMP (Dexamethasone acetate microspheres for extended-release injectable micro-suspension, SX600 at 12.5 mg or 25.0 mg) or Placebo (0.9% Sodium Chloride for Injection, BP) via transforaminal epidural injection to the lumbosacral epidural space.

Being tested
SX600, Placebo
Keywords
Sciatica, Low Back Pain, Lumbosacral Radiculopathy, Leg Pain
Medical subject headings
Radiculopathy, Sciatica, Low Back Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SX600Drug

    Transforaminal Epidural Injection

  • PlaceboDrug

    Transforaminal Epidural Injection

Study groups in NCT03952377
Study groupRoleWhat they receive
0.9% Sodium Chloride for InjectionPlacebo comparatorNot described
Receives: Drug: Placebo
12.5 mg SX600ExperimentalLow Dose
Receives: Drug: SX600
25.0 mg SX600ExperimentalHigh Dose
Receives: Drug: SX600

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Proportion of Subjects With a 50% or Greater Improvement in Mean Worst Daily Leg Pain (Responders).

    Measured: Baseline to 60 days

Secondary outcomes (7)
  1. The Proportion of Subjects Who Are Responders (Defined as Having a 50% or Greater Improvement in Mean Worst Daily Leg Pain)

    Measured: Baseline to 14, 30, 60, 90, 120, 150, and 180 days

  2. Change in Functional Outcomes as Measured by Patient's Global Impression of Change

    Very much improved, or much improved from baseline

    Measured: Baseline, 14, 30, 60, 90, 120, 150, and 180 days

  3. Change in Functional Outcomes as Measured by the Oswestry Disability Index

    0 - 20%: Minimal disability 21% - 40%: Moderate disability 41% - 60%: Severe disability 61% - 80%: Crippling back pain 81% - 100%: Bed-bound or exaggerating their symptoms

    Measured: Baseline, 14, 30, 60, 90, 120, 150, and 180 days

  4. Change From Baseline in Short Form 36 Questionnaire (SF-36)

    SF-36 is a self-administered, generic health status questionnaire consisting of 36 questions that measure 8 health concepts: physical functioning, bodily pain, role limitations due to physical health problems, role limitations due to personal or emotional problems, emotional well-being, social functioning, energy/fatigue, and general health perceptions. Each health concept has a range of possible total scores from 0 to 100. A high score defines a more favorable health state. The mean overall total score will be reported.

    Measured: Baseline, 14, 30, 60, 90, 120, 150, and 180 days

  5. The Proportion of Subjects Who Are Responders (Defined as Having a 30% or Greater Improvement in Mean Worst Daily Leg Pain)

    Measured: Baseline to 14, 30, 60, 90, 120, 150, and 180 days

  6. Proportion of Subjects Who Required Rescue Medication, as Reported in Patient Diary

    Measured: Baseline through 180 days

  7. Time to Loss of Response in the Subset of Patients Who Are Responders at Day 14 (50% or Greater Improvement in Mean Worst Daily Leg Pain)

    Measured: Day 14 through 180 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 May 2019
  2. Study start4 Nov 2019
  3. Primary completion21 Feb 2022
  4. Study completion21 Jun 2022

Why it stopped: Due to the impact of COVID-19 and associated enrollment difficulties, the study was terminated with a total sample size of 56 randomized patients

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
56 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03952377
Sponsor's protocol ID
CLIN-0012-STA19-01
Acronym
SALIENT
Status last verified
Dec 2023
First submitted
13 May 2019
Last updated
10 Jan 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing SX600 in people with Lumbar Radiculopathy, run by SpineThera Australia PTY LTD at 10 sites in Australia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 10 Jan 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 10 sites in Australia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Jan 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Proportion of Subjects With a 50% or Greater Improvement in Mean Worst Daily Leg Pain (Responders). (time frame: Baseline to 60 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jan 2024.

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