Skip to main content
OpenTrials
Completed

NCT Number: NCT00235443

A Follow-On Trial to Assess the Long Term Safety and Efficacy of SPM 927 in Painful Distal Diabetic Neuropathy

Phase 2/3 open-label trial to assess the safety and tolerability of long-term treatment with lacosamide (SPM 927) in subjects with painful diabetic neuropathy. The safety and tolerability of the different doses of lacosamide will be investigated.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Diabetic Neuropathy Diabetes Complications Diabetes Mellitus Diabetic Neuropathies Endocrine System Diseases Nervous System Diseases Neuromuscular Diseases Peripheral Nervous System Diseases

Age range

32 year–81 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2 / Phase 3

Primary location

Anniston, Alabama, United States

Loading trial locations.

About this study

This phase 2/3 open-label trial is being conducted at approximately 100 sites in the US to assess the safety and tolerability of long-term treatment with lacosamide (SPM 927) in subjects with painful diabetic neuropathy. Approximately 525 subjects will be enrolled. To qualify for this trial, subjects with symptoms of painful distal diabetic neuropathy ranging in duration from 6 months to 5 years must have completed trials SP665, SP742, or SP768 and, in the investigator's opinion, may benefit from long-term administration of lacosamide. Subjects will be titrated to their optimal dose of lacosamide (up to 600mg/day). The safety and tolerability of the different doses of lacosamide will be investigated throughout the trial. In addition, to determine what effect lacosamide has on diabetic neuropathic pain, subjects will use a diary to record their daily pain intensity and pain interference with sleep and activity. Subjects' quality of life will also be investigated.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subjects who completed Study SP665, SP742, or SP768 and, in the investigators opinion, might benefit from long-term administration of SPM 927. Exception: subjects who prematurely discontinued Study SP742 or SP768 due to lack of efficacy or due to intolerability to trial medication may be eligible to participate in Study SP745, after consultation with the medical monitor.

Exclusion criteria

  • Subject has clinically relevant electrocardiogram (ECG) abnormalities, or QT-corrected (QTc) interval >=500 milliseconds (ms), and/or a QTc interval increase of >=60ms from the mean pre-dose QTc value at Visit 2 of Studies SP665, SP742 or SP768.
  • Subject has aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) >=3 times the upper limit of the normal range (ULN) with total bilirubin >=2 times ULN or transaminases (AST and/or ALT) >=5 times ULN.
  • Subject has a clinically relevant medical condition that, in the opinion of the investigator, jeopardizes or compromises the subject's ability to participate in this trial.

Treatment and study plan

Lacosamide

Drug

Open-label treatment (two times per day) with film-coated tablets include 100mg/day, 200mg/day, 300mg/day, 400mg/day, 500mg/day, and 600mg/day throughout individual study period.

Other names: SPM927

Primary outcomes

  1. Number of Subjects With Adverse Events (AEs) Reported Spontaneously by the Subject or Observed by the Investigator.

    Time frame: Throughout the study up to a maximum study period of 2.8 years

    Number of subjects with adverse events (AEs) reported spontaneously by the subject or observed by the investigator (serious and non-serious).

Secondary outcomes

  1. Change From Baseline in Average Daily Pain Score Using an 11-point Likert Scale (0-10).

    Time frame: Baseline to end of entire treatment phase (maximum study period of 2.8 years).

    Change from Baseline in average daily pain score using an 11-point Likert scale (0-10). On Likert scale, 0=no pain and 10=worst possible pain.

  2. Change From Baseline in Average Pain Score as Measured by a 100mm Visual Analogue Scale (VAS).

    Time frame: Baseline to end of entire treatment phase (maximum study period of 2.8 years).

    Change from Baseline in average pain score as measured by a 100mm Visual Analogue Scale (VAS). On VAS 0mm=no pain and 100mm=worst possible pain.

  3. Patient's Global Impression of Change (PGIC) From Baseline in Pain.

    Time frame: Baseline to Termination Visit

    Patient's Global Impression of Change (PGIC) from Baseline in Pain. Original categorical responses are much worse, moderately worse, mildly worst, no change, mildly better, moderately better, and much better. Reported results are presented as Better (sum of mildly, moderately, or much better), No Change, or Worse (sum of mildly, moderately, or much worse).

  4. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Intensity.

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) for intensity of pain where 0=no pain and 10=most intense pain sensation imaginable.

  5. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Sharpness

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) for sharpness of pain where 0=not sharp and 10=most sharp sensation imaginable ("like a knife").

  6. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Heat

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) with heat sensation where 0=not hot and 10=the most hot sensation imaginable ("on fire").

  7. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Dullness

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) with dullness of pain where 0=not dull and 10=most dull sensation imaginable.

  8. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Cold

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) with cold sensation where 0=not cold and 10=most cold sensation imaginable ("freezing").

  9. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Sensitivity

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) with sensitivity of pain where 0=not sensitive and 10=most sensitive sensation imaginable ("raw skin").

  10. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Itchiness

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) with itchiness where 0=not itchy and 10=most itchy sensation imaginable ("like poison oak").

  11. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Unpleasantness

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) with unpleasantness where 0=not pleasant and 10=most unpleasant sensation imaginable ("intolerable").

  12. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Deep Pain

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) with deep pain where 0=no deep pain and 10=most intense deep pain sensation imaginable.

  13. Within-subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Surface Pain

    Time frame: Baseline to Termination Visit

    Within-subject change in neuropathic pain using the Neuropathic Pain Scale (NPS) with surface pain where 0=no surface pain and 10=most intense surface pain imaginable.

  14. Change From Baseline in Average Pain Interference With Sleep (11-point Likert Scale)

    Time frame: Baseline to end of entire treatment phase visit

    Change from Baseline in average pain interference with sleep (11-point Likert scale) where 0=no interference with sleep and 10=worst possible interference with sleep.

  15. Change From Baseline in Average Pain Interference With Activity (11-point Likert Scale)

    Time frame: Baseline to end of entire treatment phase visit

    Change from Baseline in average pain interference with activity (11-point Likert scale) where 0=no interfence with activity and 10=worst possible interference with activity.

  16. Change From Baseline in Quality of Life Using the SF-36 Health Survey - Physical Component Summary (PCS)

    Time frame: Baseline to Termination Visit

    Change from Baseline in quality of life using the SF-36 Health Survey - Physical Component Summary (PCS). Values range from 0 to 100 with high values indicating a good condition. Positive change in baseline values indicate improvement in quality of life.

  17. Change From Baseline in Quality of Life Using the SF-36 Health Survey - Mental Component Summary (MCS)

    Time frame: Baseline to Termination Visit

    Change from Baseline in quality of life using the SF-36 Health Survey - Mental Component Summary (MCS). Values range from 0 to 100 with high values indicating a good condition. Positive change in baseline values indicate improvement in quality of life.

Sponsors and collaborators

Lead sponsor

UCB Pharma

Industry

Registry information

Official study title

A Multi-Center, Open-Label, Follow-On Trial to Assess the Long Term Safety and Efficacy of SPM 927 in Subjects With Painful Distal Diabetic Neuropathy

Important dates

Study start
2004
Primary completion
2008
Study completion
2008
First posted
Oct 10, 2005
Registry last updated
Jul 17, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.