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A Safety and Efficacy Study of XP19986 in Subjects With Spasticity Due to Spinal Cord Injury

17. februar 2021 opdateret af: XenoPort, Inc.

Multiple-Dose Efficacy and Safety Study of XP19986 in Subjects With Spasticity Due to Spinal Cord Injury

The purpose of this study is to evaluate efficacy and safety of treatment with XP19986 Sustained Release (SR) Tablet compared to placebo in subjects with spasticity due to spinal cord injury

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This is a multiple-dose, randomized, placebo-controlled crossover study of the efficacy and safety of XP19986 SR1 in subjects with spasticity due to spinal cord injury. Three cohorts of subjects are randomized to receive XP19986 SR1 10 mg every 12 hrs or 20 mg every 12 hrs or 30 mg every 12 hrs in one treatment segment and placebo every 12 hrs in the alternate treatment segment. Each subject serves as their own control in this cross-over study.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

37

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • California
      • Downey, California, Forenede Stater
      • Gilroy, California, Forenede Stater
      • Pasadena, California, Forenede Stater
      • San Jose, California, Forenede Stater
    • Colorado
      • Englewood, Colorado, Forenede Stater
    • Florida
      • Miami, Florida, Forenede Stater
    • Georgia
      • Atlanta, Georgia, Forenede Stater
    • Illinois
      • Chicago, Illinois, Forenede Stater
    • Kansas
      • Kansas City, Kansas, Forenede Stater
    • Michigan
      • Ann Arbor, Michigan, Forenede Stater
      • Detroit, Michigan, Forenede Stater

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Spasticity secondary to traumatic spinal cord injury between C-5 and T-12 spinal cord levels, at least 12 months post-injury with a stable neurological deficit

Exclusion Criteria:

  • Traumatic brain injury or cognitive deficit of any etiology that may influence compliance with study procedures or outcome measures

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: XP19986 SR1 10 mg - Placebo
Following a 7 day run-in period in which participants take placebo twice a day (BID), participants are randomized to the cohort that will take XP19986 SR1 10 mg BID treatment crossing over to placebo treatment (or the reverse order). Each treatment segment follows the same pattern: 3-9 days of titration, 7 days at target dose, 3-9 days of tapering, followed by a 3-day placebo washout.
Medicin: XP19986 SR1, 10 mg BID
XP19986 Sustained Release (SR) 10 mg tablet dosed orally, twice a day (BID), for approximately 26 days with titration and taper periods
Andre navne:
  • Sustained release Polyox WSR N750, 10 mg
Medicin: Placebo
Placebo tablets to match active intervention, taken twice a day (BID) for approximately 26 days with titration and taper periods. Also taken during placebo washout periods.
Andre navne:
  • sukker pille
Eksperimentel: XP19986 SR1 20 mg - Placebo
Following a 7 day run-in period in which participants take placebo twice a day (BID), participants are randomized to the cohort that will take XP19986 SR1 20 mg BID treatment crossing over to placebo treatment (or the reverse order). Each treatment segment follows the same pattern: 3-9 days of titration, 7 days at target dose, 3-9 days of tapering, followed by a 3-day placebo washout.
Medicin: Placebo
Placebo tablets to match active intervention, taken twice a day (BID) for approximately 26 days with titration and taper periods. Also taken during placebo washout periods.
Andre navne:
  • sukker pille
Medicin: XP19986 SR1, 20 mg BID
XP19986 Sustained Release (SR) 20 mg tablet dosed orally, twice a day (BID), for approximately 26 days with titration and taper periods
Andre navne:
  • Sustained release Polyox WSR N750, 20 mg
Eksperimentel: XP19986 SR1 30 mg - Placebo
Following a 7 day run-in period in which participants take placebo twice a day (BID), participants are randomized to the cohort that will take XP19986 SR1 30 mg BID treatment crossing over to placebo treatment (or the reverse order). Each treatment segment follows the same pattern: 3-9 days of titration, 7 days at target dose, 3-9 days of tapering, followed by a 3-day placebo washout.
Medicin: Placebo
Placebo tablets to match active intervention, taken twice a day (BID) for approximately 26 days with titration and taper periods. Also taken during placebo washout periods.
Andre navne:
  • sukker pille
Medicin: XP19986 SR1, 30 mg BID
XP19986 Sustained Release (SR) 30 mg tablet dosed orally, twice a day (BID), for approximately 26 days with titration and taper periods
Andre navne:
  • Sustained release Polyox WSR N750, 30 mg

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Maximum Ashworth score
Tidsramme: Day 17
Ashworth score for each treatment segment before dosing and 2, 4, and 6 hours after the morning dose. Evaluate the difference in the primary endpoint between active and placebo treament segments at 17th day of dosing in each segment
Day 17

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Average Ashworth score
Tidsramme: Day 17
This was the average of Ashworth scores obtained on Day 17 of dosing across 6 muscle groups for each treatment segment before dosing and 2, 4, and 6 hours after the morning dose
Day 17
Two Highest Ashworth scores
Tidsramme: Day 17
This was the average of Ashworth scores obtained on Day 17 of dosing from the muscle groups that had the 2 highest Ashworth scores at baseline for each treatment segment before dosing and 2, 4, and 6 hours after the morning dose
Day 17
Average Non-zero Ashworth Scores
Tidsramme: Day 17
This was the average of Ashworth scores obtained on Day 17 of dosing from the muscle groups that had a non-zero Ashworth score at baseline for each treatment segment before dosing and 2, 4, and 6 hours after the morning dose
Day 17

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

XenoPort, Inc.

Efterforskere

  • Studieleder: Michael Leong, M.D., XenoPort, Inc.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. december 2007

Primær færdiggørelse (Faktiske)

1. april 2009

Studieafslutning (Faktiske)

1. april 2009

Datoer for studieregistrering

Først indsendt

12. november 2007

Først indsendt, der opfyldte QC-kriterier

12. november 2007

Først opslået (Skøn)

14. november 2007

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

21. februar 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

17. februar 2021

Sidst verificeret

1. februar 2021

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • XP-B-065

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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