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Painful Diabetic NeuropathyPhase 3NCT00546351

Study Evaluating Long-term Safety and Efficacy of Lacosamide in Subjects With Painful Distal Diabetic Neuropathy.

A Phase 3 study testing Lacosamide in people with Painful Diabetic Neuropathy, run by UCB Pharma at 101 sites in 15 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

SP746 (NCT00546351) is a multi-center, open-label, follow-on trial. The purpose of this trial is to assess safety and tolerability of long-term exposure of lacosamide (previously referred to as SPM 927) in subjects with painful distal diabetic neuropathy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Painful Diabetic Neuropathy
What is being tested?
Lacosamide
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
621 participants
Where
101 sitesin 15 countries
Study dates
May 2004to Jan 2011
Phase
Phase 3
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects who completed Study SP743 (NCT00238524) or SP874 (NCT00350103) and, in the investigator's opinion, might benefit from long-term administration of SP746 (NCT00546351). Exception: subjects who prematurely discontinued
  • SP743 (NCT00238524) or SP874 (NCT00350103) due to lack of efficacy or due to intolerability to trial medication (after Visit 5but prior to entering the Maintenance Phase) may be eligible to participate in SP746 (NCT00546351), after consultation with the medical monitor

Who cannot join

  • Subject has clinically relevant ECG abnormalities, or a QTc interval ≥500 ms, and/or a QTc interval increase of ≥60 ms from the mean pre-dose QTc value at Visit 2 of SP743 (NCT00238524) or SP874 (NCT00350103)
  • 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
  • Subject is a pregnant or nursing female, or is of childbearing potential and is not surgically sterile, 2 years postmenopausal, or does not practice 2 combined methods of contraception

Trial locations and contacts

101 sites in 15 countries.

101 sites in 15 countries

Germany22 sites
  • 040

    Bad Saarow

  • 052

    Beckum

  • 049

    Berlin

  • 051

    Berlin

  • 056

    Berlin

  • 242

    Berlin

  • 249

    Berlin

  • 247

    Bochum

  • 041

    Hamburg

  • 045

    Hamburg

  • 054

    Hamburg

  • 244

    Jena

  • 058

    Köthen

  • 043

    Künzing

  • 050

    Leipzig

  • 053

    Leipzig

  • 250

    Leipzig

  • 046

    Mittweida

  • 243

    München

  • 246

    Schwerin

  • 044

    Stuhr-Brinkum

  • 248

    Witten

Other trials in Germany

Poland14 sites
  • 092

    Bialystok

  • 293

    Bialystok

  • 094

    Bydgoszcz

  • 095

    Częstochowa

  • 091

    Gdansk

  • 093

    Gdansk

  • 294

    Krakow

  • 297

    Krakow

  • 090

    Lodz

  • 295

    Lodz

  • 291

    Radom

  • 292

    Warsaw

  • 296

    Warsaw

  • 290

    Ząbkowicki

Other trials in Poland

Hungary11 sites
  • 060

    Budapest

  • 062

    Budapest

  • 061

    Győr

  • 262

    Kecskemét

  • 260

    Makó

  • 266

    Nyíregyháza

  • 064

    Szeged

  • 265

    Székesfehérvár

  • 264

    Szolnok

  • 263

    Tatabánya

  • 261

    Veszprém

Other trials in Hungary

Bulgaria10 sites
  • 011

    Pleven

  • 014

    Plovdiv

  • 017

    Plovdiv

  • 019

    Rousse

  • 012

    Sofia

  • 013

    Sofia

  • 015

    Sofia

  • 016

    Sofia

  • 210

    Stara Zagora

  • 010

    Varna

Other trials in Bulgaria

Czechia8 sites
  • 028

    Brno

  • 220

    Chomutov

  • 026

    Litoměřice

  • 027

    Olomouc

  • 024

    Ostrava-Poruba

  • 029

    Písek

  • 021

    Prague

  • 022

    Prague

Other trials in Czechia

Romania7 sites
  • 100

    Bucharest

  • 102

    Bucharest

  • 107

    Bucharest

  • 108

    Bucharest

  • 109

    Bucharest

  • 101

    Cluj-Napoca

  • 103

    Timișoara

Other trials in Romania

Belgium6 sites
  • 003

    Antwerp

  • 006

    Bonheiden

  • 002

    Genk

  • 001

    Leuven

  • 005

    Merksem

  • 004

    Roeselare

Other trials in Belgium

Russia5 sites
  • 114

    Moscow

  • 115

    Moscow

  • 116

    Moscow

  • 112

    Saint Petersburg

  • 111

    Samara

Other trials in Russia

United Kingdom5 sites
  • 159

    Bath

  • 154

    Bristol

  • 152

    Leeds

  • 150

    Morriston

  • 151

    Newport

Other trials in United Kingdom

Serbia4 sites
  • 140

    Belgrade

  • 143

    Belgrade

  • 144

    Belgrade

  • 142

    Niš

Other trials in Serbia

Italy3 sites
  • 270

    Pavia

  • 273

    Pavia

  • 272

    Pozzilli

Other trials in Italy

Austria2 sites
  • 180

    Vienna

  • 183

    Vienna

Other trials in Austria

France2 sites
  • 034

    Lisieux

  • 031

    Nevers

Other trials in France

Finland1 site
  • 192

    Kuopio

Other trials in Finland

Spain1 site
  • 137

    Granada

Other trials in Spain

About this study

Official title: A Multi-center, Open-label, follow-on Trial to Assess the Long-term Safety and Efficacy of Lacosamide in Subjects With Painful Distal Diabetic Neuropathy Including a Double-blind, Randomized Time Point Withdrawal Subtrial.

SP746 (NCT00546351) is a multi-center, open-label, follow-on trial. The purpose of this trial is to assess safety and tolerability of long-term exposure of lacosamide (previously referred to as SPM 927) in subjects with painful distal diabetic neuropathy.

Being tested
Lacosamide
Keywords
Lacosamide
Medical subject headings
Diabetic Neuropathies

What participants receive

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

  • LacosamideDrug

    Also called Vimpat

    50 to 100 mg Lacosamide film-coated tablets; two times per day up to 600 mg/day; 6.5 years

Study groups in NCT00546351
Study groupRoleWhat they receive
LacosamideExperimental50 to 100 mg Lacosamide film-coated tablets; two times per day up to 600 mg/day; 6.5 years.
Receives: Drug: Lacosamide

What is being measured

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

  1. Number of Participants Experiencing the Occurrence of at Least One Treatment-emergent Adverse Event (TEAE) During the Evaluation Period From Entry Visit 1 Through End of Treatment (Approximately 6.5 Years).

    Adverse events are any untoward medical occurrences in a subject administered study treatment, whether or not these events are related to treatment.

    Measured: From entry Visit 1 through end of treatment (approximately 6.5 years)

  2. Number of Participants Experiencing the Occurrence of at Least One Serious Adverse Event (SAE) During the Evaluation Period From Entry Visit 1 Through End of Treatment (Approximately 6.5 Years).

    A Serious Adverse Event (SAE) is any untoward medical occurrence that at any dose:

    • Is fatal
    • Is life-threatening
    • Results in persistent or significant disability/incapacity
    • Requires inpatient hospitalization
    • Prolongs existing inpatient hospitalization
    • Is a congenital anomaly/birth defect
    • Is considered to be an important medical event. Such an event may not be immediately life threatening or result in death or hospitalization but may jeopardize the subject or may require intervention to prevent one of the other outcomes listed in the definitions above

    Measured: From entry Visit 1 through end of treatment (approximately 6.5 years)

Secondary outcomes (23)
  1. Average Daily Pain Score Using an 11-point Likert Scale (0-10) at Baseline Visit.

    On the Likert Scale, 0 = no pain and 10 = worst possible pain.

    Measured: Baseline

  2. Average Daily Pain Score Using an 11-point Likert Scale (0-10) at Last Visit.

    On the Likert Scale, 0 = no pain and 10 = worst possible pain.

    Measured: Last Visit (approximately 2 years)

  3. Average Pain Score as Measured by a 100 mm Visual Analog Scale (VAS) at Baseline.

    Visual Analog Scale (VAS) 0 mm = no pain and 100 mm = worst possible pain.

    Measured: Baseline

  4. Average Pain Score as Measured by a 100 mm Visual Analogue Scale (VAS) at Last Visit.

    On VAS 0 mm = no pain and 100 mm = worst possible pain.

    Measured: Last Visit (approximately 2 years)

  5. Patient's Global Impression of Change (PGIC) at Last Visit.

    The PGIC is a 7-point self-administered categorical rating scale in which the subject rated the change in pain since starting trial medication (from much worse [score of 1] to much better [score of 7]).

    Reported results are presented as Better (sum of mildly, moderately, or much better), No Change, or Worse (sum of mildly, moderately, or much worse).

    Measured: Last Visit (approximately 2 years)

  6. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Intensity at Last Visit.

    0 = no pain and 10 = most intense pain sensation imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  7. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Sharpness at Last Visit.

    0 = not sharp and 10 = most sharp sensation imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  8. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Heat at Last Visit.

    0 = not hot and 10 = the most hot sensation imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  9. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Cold at Last Visit.

    0 = not cold and 10 = the coldest sensation imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  10. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Dullness at Last Visit.

    0 = not dull and 10 = most dull sensation imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  11. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Unpleasantness at Final Visit.

    0 = not unpleasant and 10 = most unpleasant sensation imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  12. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Surface Pain at Last Visit.

    0 = no surface pain and 10 = most intense surface pain imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  13. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Deep Pain at Last Visit.

    0 = no deep pain and 10 = most intense deep pain imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  14. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Itchiness at Final Visit.

    0 = not itchy and 10 = most itchy sensation imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  15. Within-Subject Change in Neuropathic Pain Using the Neuropathic Pain Scale (NPS) - Sensitivity at Last Visit.

    0 = not sensitive and 10 = most sensitive sensation imaginable.

    Measured: Baseline Visit; Last Visit (approximately 2 years)

  16. Average Pain Interference With Sleep (11-point Likert Scale) at Baseline.

    0 = no interference with sleep and 10 = worst possible interference with sleep.

    Measured: Baseline

  17. Average Pain Interference With Sleep (11-point Likert Scale) at Last Visit.

    0 = no interference with sleep and 10 = worst possible interference with sleep.

    Measured: Last Visit

  18. Average Pain Interference With Activity (11-point Likert Scale) at Baseline.

    0 = no interference with activity and 10 = worst possible interference with activity.

    Measured: Baseline

  19. Average Pain Interference With Activity (11-point Likert Scale) at Last Visit.

    0 = no interference with activity and 10 = worst possible interference with activity.

    Measured: Last Visit

  20. Average Quality of Life Using the SF-36 Health Survey - Physical Component Summary (PCS) at Baseline.

    The SF-36 Health Survey measures health-related quality of life across multiple disease states. It has 36 questions with 8 subscale scores and 2 summary scores: PCS = physical functioning, role-physical, bodily pain, and general health; MCS = vitality, social functioning, role-emotional, and mental health. Scoring is done for both subscores and summary scores. For both, 0 = worst score (or quality of life) and 100 = best score.

    Measured: Baseline

  21. Average Quality of Life Using the SF-36 Health Survey - Physical Component Summary (PCS) at Last Visit.

    The SF-36 Health Survey measures health-related quality of life across multiple disease states. It has 36 questions with 8 subscale scores and 2 summary scores: PCS = physical functioning, role-physical, bodily pain, and general health; MCS = vitality, social functioning, role-emotional, and mental health. Scoring is done for both subscores and summary scores. For both, 0 = worst score (or quality of life) and 100 = best score.

    Measured: Last Visit

  22. Average Quality of Life Using the SF-36 Health Survey - Mental Component Summary (MCS) at Baseline.

    The SF-36 Health Survey measures health-related quality of life across multiple disease states. It has 36 questions with 8 subscale scores and 2 summary scores: PCS = physical functioning, role-physical, bodily pain, and general health; MCS = vitality, social functioning, role-emotional, and mental health. Scoring is done for both subscores and summary scores. For both, 0 = worst score (or quality of life) and 100 = best score.

    Measured: Baseline

  23. Average Quality of Life Using the SF-36 Health Survey - Mental Component Summary (MCS) at Last Visit.

    The SF-36 Health Survey measures health-related quality of life across multiple disease states. It has 36 questions with 8 subscale scores and 2 summary scores: PCS = physical functioning, role-physical, bodily pain, and general health; MCS = vitality, social functioning, role-emotional, and mental health. Scoring is done for both subscores and summary scores. For both, 0 = worst score (or quality of life) and 100 = best score.

    Measured: Last Visit

Timeline

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

  1. First posted18 Oct 2007 (estimated)
  2. Study startMay 2004
  3. Primary completionJan 2011
  4. Study completionJan 2011

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 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
621 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00546351
Sponsor's protocol ID
SP0746
Other IDs
2004-000551-42, 2004
Status last verified
Aug 2023
First submitted
16 Oct 2007
Last updated
21 Sep 2023
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Lacosamide in people with Painful Diabetic Neuropathy, run by UCB Pharma at 101 sites in 15 countries.

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

Who may be eligible to take part?

The sponsor lists 2 inclusion and 4 exclusion criteria. 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: finished, as of the sponsor's last update on 21 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 101 sites in Germany, Poland, Hungary, Bulgaria, Czechia and 10 more countries. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 19 Apr 2012). 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?

Number of Participants Experiencing the Occurrence of at Least One Treatment-emergent Adverse Event (TEAE) During the Evaluation Period From Entry Visit 1 Through End of Treatment (Approximately 6.5 Years). (time frame: From entry Visit 1 through end of treatment (approximately 6.5 years)). The study lists 2 primary outcomes in all. 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 21 Sep 2023.

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