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Safety and Tolerability Study of KNS-760704 in Amyotrophic Lateral Sclerosis (ALS) (CL201)

16 июня 2021 г. обновлено: Knopp Biosciences

A 2-Part, Randomized, Double-Blind, Safety and Tolerability Study Evaluating KNS-760704 in Patients With Amyotrophic Lateral Sclerosis (ALS)

This was a 2-part study of dexpramipexole in patients with ALS.

Part 1 was a randomized, placebo-controlled, multi-center study to evaluate the safety, tolerability, and clinical effects of oral administration of 3 dosage levels of dexpramipexole vs. placebo for 12 weeks.

Part 2 was a randomized, double-blind, 2-arm, parallel group, extension study evaluating the safety, tolerability, and clinical effects of oral administration of 2 dosage levels of dexpramipexole for up to 72 weeks.

Обзор исследования

Статус

Завершенный

Условия

Вмешательство/лечение

Подробное описание

This study was a two-part, multicenter, double-blind study in subjects with ALS to evaluate the safety and tolerability of dexpramipexole treatment, as well as the preliminary effects on measures of clinical function and mortality of dexpramipexole treatment.

In part 1, 102 subjects with ALS were randomized at 20 US sites to receive placebo, dexpramipexole at 50 mg/day; dexpramipexole at 150 mg/day; or dexpramipexole at 300 mg/day for 12 weeks. Participants who completed Part 1 were eligible to enroll into Part 2.

Part 2 was a randomized, double-blind, 2-arm, parallel-group, extension study evaluating the longer-term safety, tolerability, and clinical effects of oral administration of 2 dosage levels of dexpramipexole. In part 2, following a 4-week, placebo washout, continuing subjects received dexpramipexole at 50 mg/day or 300 mg/day as double-blind treatment for up to 72 additional weeks (Part 2 duration was up to a total of 76 weeks, including the 4 week placebo portion).

Тип исследования

Интервенционный

Регистрация (Действительный)

194

Фаза

  • Фаза 2

Контакты и местонахождение

В этом разделе приведены контактные данные лиц, проводящих исследование, и информация о том, где проводится это исследование.

Места учебы

  • Соединенные Штаты
    • Arkansas
      • Little Rock, Arkansas, Соединенные Штаты, 72205
        • University of Arkansas for Medical Sciences
    • California
      • Los Angeles, California, Соединенные Штаты, 90095
        • UCLA, Dept. of Neurology - Neuromuscular/ALS Research Center
      • San Francisco, California, Соединенные Штаты, 94115
        • The Forbes Norris MDA/ALS Research Center
    • Colorado
      • Aurora, Colorado, Соединенные Штаты, 80045
        • University of Colorado Health Sciences Center
    • Florida
      • Miami, Florida, Соединенные Штаты, 33136
        • University of Miami Miller School of Medicine
    • Kansas
      • Kansas City, Kansas, Соединенные Штаты, 66160
        • University of Kansas Medical Center
    • Maryland
      • Baltimore, Maryland, Соединенные Штаты, 21228
        • Johns Hopkins University School of Medicine
    • Massachusetts
      • Boston, Massachusetts, Соединенные Штаты, 02129
        • Massachusettes General Hospital
    • Missouri
      • Saint Louis, Missouri, Соединенные Штаты, 63110
        • Washington University School of Medicine
    • Nebraska
      • Lincoln, Nebraska, Соединенные Штаты, 68506
        • Bryan LGH Medical Center East
    • New York
      • New York, New York, Соединенные Штаты, 10032
        • Columbia University, Lou Gehrig MDA/ALS Research Center
      • Syracuse, New York, Соединенные Штаты, 13210
        • SUNY Upstate Medical University
    • Oregon
      • Portland, Oregon, Соединенные Штаты, 97239
        • Oregon Health Sciences University
    • Pennsylvania
      • Hershey, Pennsylvania, Соединенные Штаты, 17033
        • Penn State Hershey Medical Center
      • Philadelphia, Pennsylvania, Соединенные Штаты, 19102
        • Drexel University College of Medicine
      • Pittsburgh, Pennsylvania, Соединенные Штаты, 15213
        • University of Pittsburgh School of Medicine
    • Tennessee
      • Nashville, Tennessee, Соединенные Штаты, 37232
        • Vanderbilt University Medical Center
    • Texas
      • San Antonio, Texas, Соединенные Штаты, 78229
        • University of Texas Health Sciences Center of San Antonio
    • Utah
      • Salt Lake City, Utah, Соединенные Штаты, 84132
        • University of Utah
    • Virginia
      • Charlottesville, Virginia, Соединенные Штаты, 22908
        • University of Virginia Health System
    • Washington
      • Seattle, Washington, Соединенные Штаты, 98195
        • University of Washington

Критерии участия

Исследователи ищут людей, которые соответствуют определенному описанию, называемому критериям приемлемости. Некоторыми примерами этих критериев являются общее состояние здоровья человека или предшествующее лечение.

Критерии приемлемости

Возраст, подходящий для обучения

От 21 год до 80 лет (Взрослый, Пожилой взрослый)

Принимает здоровых добровольцев

Нет

Полы, имеющие право на обучение

Все

Описание

Inclusion Criteria:

  • Patients with diagnosis of familial or sporadic ALS, defined as meeting the possible, laboratory-supported probable, probable, or definite criteria for a diagnosis of ALS according to the World Federation of Neurology El Escorial criteria
  • Patients with ALS symptom onset < 24 months from randomization
  • Patients with upright vital capacity (VC) > 65% of predicted for age, height, and gender

Exclusion Criteria:

  • Patients in whom causes of neuromuscular weakness other than ALS have not been excluded
  • Patients without clinical evidence of upper motor neuron dysfunction
  • Patients with clinically suspected ALS according to the World Federation of Neurology El Escorial criteria
  • Patients with prior exposure to KNS-760704 or the R(+) enantiomer of pramipexole (i.e., R(+)-pramipexole)
  • Patients taking other investigational agents (including lithium) within 30 days of randomization or during the study

Учебный план

В этом разделе представлена ​​подробная информация о плане исследования, в том числе о том, как планируется исследование и что оно измеряет.

Как устроено исследование?

Детали дизайна

  • Основная цель: Уход
  • Распределение: Рандомизированный
  • Интервенционная модель: Параллельное назначение
  • Маскировка: Четырехместный

Оружие и интервенции

Группа участников / Армия
Вмешательство/лечение
Плацебо Компаратор: Part 1: Placebo or Dexpramipexole
During Part 1, subjects received twice daily doses of dexpramipexole (50 mg/day, 150 mg/day, or 300 mg/day) or matching placebo for approximately 12 weeks.
Лекарство: Placebo
Placebo: 2 tablets taken orally twice daily
Лекарство: Dexpramipexole 50 mg/day
Dexpramipexole: 2 x 12.5 mg tablets taken orally twice daily
Другие имена:
  • КНС-760704
  • BIIB050
Лекарство: Dexpramipexole 150 mg/day
Dexpramipexole: 2 x 37.5 mg tablets taken orally twice daily
Другие имена:
  • КНС-760704
  • BIIB050
Лекарство: Dexpramipexole 300 mg/day
Dexpramipexole: 2 x 75 mg tablets taken orally twice daily
Другие имена:
  • КНС-760704
  • BIIB050
Экспериментальный: Part 2: Placebo washout
At the beginning of Part 2, subjects received twice daily doses of placebo for approximately 4 weeks.
Лекарство: Placebo
Placebo: 2 tablets taken orally twice daily
Экспериментальный: Part 2: Dexpramipexole
Following the Part 2 placebo washout, subjects received dexpramipexole (50 mg/day or 300 mg/day), subjects received twice daily doses of placebo for up to 18 months.
Лекарство: Dexpramipexole 50 mg/day
Dexpramipexole: 2 x 12.5 mg tablets taken orally twice daily
Другие имена:
  • КНС-760704
  • BIIB050
Лекарство: Dexpramipexole 300 mg/day
Dexpramipexole: 2 x 75 mg tablets taken orally twice daily
Другие имена:
  • КНС-760704
  • BIIB050

Что измеряет исследование?

Первичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Part 1: Number of Participants With Potentially Clinically Significant Hematology Results by Treatment Group
Временное ограничение: 12 weeks
Number of Participants with Potentially Clinically Significant Hematology Results by Treatment Group. Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group. Patients are only counted once per criterion per laboratory test.
12 weeks
Part 1: Number of Participants With Potentially Clinically Significant Blood Chemistry Results by Treatment Group
Временное ограничение: 12 weeks
Number of Participants with Potentially Clinically Significant Blood Chemistry Results by Treatment Group. Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group. Patients are only counted once per criterion per laboratory test.
12 weeks
Part 1: Number of Participants With Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group
Временное ограничение: 12 weeks
Number of Participants with Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group. Percentages are based on the number of patients with at least one non-missing post-baseline value in each treatment group.
12 weeks
Part 1: Number of Participants With Potentially Clinically Significant Vital Sign Measurements by Treatment Group
Временное ограничение: 12 weeks
Number of Participants with Potentially Clinically Significant Vital Sign Measurements by Treatment Group. Percentages are based on the number of patients with at least one non-missing post-baseline value in each treatment group.
12 weeks

Вторичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Part 1: Slope of ALSFRS-R (ALS Functional Rating Scale With Respiratory Component) From Baseline to Week 12 by Treatment Group
Временное ограничение: 12 weeks
The ALSFRS-R (ALS functional rating scale with respiratory component) is a validated scale which measures 4 functional domains, comprising respiratory function, bulbar function, gross motor skills, and fine motor skills. There are a total of 12 questions, each scored from 0 to 4 for a total possible score of 48, with higher scores representing better function. Slope is calculated using a linear mixed effects model with x-axis time in months and y-axis ALSFRS-R score. Units for slope are change per month in units on the ALSFRS-R scale.
12 weeks
Part 1: Slope of Upright Vital Capacity From Baseline to Week 12 by Treatment Group
Временное ограничение: 12 weeks
Slope of change in Upright Vital Capacity (percent predicted upright vital capacity) from Baseline to Week 12. A negative change/slope indicates clinical worsening. Slope is calculated using a linear mixed effects model with x-axis time in months and y-axis as percent predicted upright vital capacity. Units for slope are change per month in percent predicted upright vital capacity.
12 weeks
Part 2 Placebo Washout: Number of Participants With Potentially Clinically Significant Hematology
Временное ограничение: 4 weeks
Number of Participants with Potentially Clinically Significant Hematology Results by Treatment Group. Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group. Patients are only counted once per criterion per laboratory test.
4 weeks
Part 2 Placebo Washout: Number of Participants With Potentially Clinically Significant Blood Chemistry Results
Временное ограничение: 4 weeks
Number of Participants with Potentially Clinically Significant Blood Chemistry Results by Treatment Group. Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group. Patients are only counted once per criterion per laboratory test.
4 weeks
Part 2 Placebo Washout: Number of Participants With Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings
Временное ограничение: 4 weeks
Number of Participants with Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group. Percentages are based on the number of patients with at least one non-missing post-baseline value in each treatment group.
4 weeks
Part 2 Placebo Washout: Number of Participants With Potentially Clinically Significant Vital Sign Measurements
Временное ограничение: 4 weeks
Number of Participants with Potentially Clinically Significant Vital Sign Measurements by Treatment Group. Percentages are based on the number of patients with at least one non-missing post-baseline value in each treatment group.
4 weeks
Part 2 Placebo Washout: Absolute Change in ALSFRS-R Total Score
Временное ограничение: 4 weeks

The ALSFRS-R (ALS functional rating scale with respiratory component) is a validated scale which measures 4 functional domains, comprising respiratory function, bulbar function, gross motor skills, and fine motor skills. There are a total of 12 questions, each scored from 0 to 4 for a total possible score of 48, with higher scores representing better function.

Units are points on the ALSFRS-R score as an absolute change from the baseline of the placebo washout to week 4 of the placebo washout.
4 weeks
Part 2 Placebo Washout: Absolute Change in Upright Vital Capacity (Percent Predicted) From Baseline to End of Placebo Washout (Week 4)
Временное ограничение: 4 weeks
Absolute change in Upright Vital Capacity From Baseline to Week 4. Units are percent of predicted Upright Vital Capacity. A negative change indicates clinical worsening.
4 weeks
Part 2 Double-Blind Treatment: Number of Participants With Potentially Clinically Significant Hematology Results by Treatment Group
Временное ограничение: up to 76 weeks
Number of Participants with Potentially Clinically Significant Hematology Results by Treatment Group. Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group. Patients are only counted once per criterion per parameter.
up to 76 weeks
Part 2 Double-Blind Treatment: Number of Participants With Potentially Clinically Significant Blood Chemistry Results by Treatment Group
Временное ограничение: up to 76 weeks
Number of Participants with Potentially Clinically Significant Blood Chemistry Results by Treatment Group. Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group. Patients are only counted once per criterion per parameter.
up to 76 weeks
Part 2 Double-Blind Treatment: Number of Participants With Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group
Временное ограничение: up to 76 weeks
Number of Participants with Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group. Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group. Patients are only counted once per criterion per parameter.
up to 76 weeks
Part 2 Double-Blind Treatment: Number of Participants With Potentially Clinically Significant Vital Sign Measurements by Treatment Group
Временное ограничение: up to 76 weeks
Number of Participants with Potentially Clinically Significant Vital Sign Measurements by Treatment Group. Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group. Patients are only counted once per criterion per parameter.
up to 76 weeks
Part 2 Double-Blind Treatment: Slope of the ALSFRS-R (ALS Functional Rating Scale With Respiratory Component) From Baseline to Week 28 by Treatment Group
Временное ограничение: 28 weeks
The ALSFRS-R (ALS functional rating scale with respiratory component) is a validated scale which measures 4 functional domains, comprising respiratory function, bulbar function, gross motor skills, and fine motor skills. There are a total of 12 questions, each scored from 0 to 4 for a total possible score of 48, with higher scores representing better function. Slope is calculated using a linear mixed effects model with x-axis time in months and y-axis ALSFRS-R score. Units for slope are change per month n units on the ALSFRS-R scale.
28 weeks
Part 2 Double-Blind Treatment: Slope of Percent Predicted Upright Vital Capacity From Baseline by Treatment Group
Временное ограничение: Baseline of randomized phase of Part 2 to week 28 of randomized phase of Part 2
Slope of Upright Vital Capacity (percent predicted) through Week 28. A negative change indicates clinical worsening. Slope is calculated using a linear mixed effects model with x-axis time in months and y-axis percent predicted upright vital capacity. Units for slope are change per month in percent predicted upright vital capacity.
Baseline of randomized phase of Part 2 to week 28 of randomized phase of Part 2

Соавторы и исследователи

Здесь вы найдете людей и организации, участвующие в этом исследовании.

Спонсор

Knopp Biosciences

Публикации и полезные ссылки

Лицо, ответственное за внесение сведений об исследовании, добровольно предоставляет эти публикации. Это может быть что угодно, связанное с исследованием.

Общие публикации

Даты записи исследования

Эти даты отслеживают ход отправки отчетов об исследованиях и сводных результатов на сайт ClinicalTrials.gov. Записи исследований и сообщаемые результаты проверяются Национальной медицинской библиотекой (NLM), чтобы убедиться, что они соответствуют определенным стандартам контроля качества, прежде чем публиковать их на общедоступном веб-сайте.

Изучение основных дат

Начало исследования (Действительный)

9 апреля 2008 г.

Первичное завершение (Действительный)

31 июля 2009 г.

Завершение исследования (Действительный)

4 сентября 2009 г.

Даты регистрации исследования

Первый отправленный

26 марта 2008 г.

Впервые представлено, что соответствует критериям контроля качества

28 марта 2008 г.

Первый опубликованный (Оценивать)

31 марта 2008 г.

Обновления учебных записей

Последнее опубликованное обновление (Действительный)

8 июля 2021 г.

Последнее отправленное обновление, отвечающее критериям контроля качества

16 июня 2021 г.

Последняя проверка

1 марта 2021 г.

Дополнительная информация

Термины, связанные с этим исследованием

Ключевые слова

Дополнительные соответствующие термины MeSH

Другие идентификационные номера исследования

  • KNS-760704-CL201

Эта информация была получена непосредственно с веб-сайта clinicaltrials.gov без каких-либо изменений. Если у вас есть запросы на изменение, удаление или обновление сведений об исследовании, обращайтесь по адресу register@clinicaltrials.gov. Как только изменение будет реализовано на clinicaltrials.gov, оно будет автоматически обновлено и на нашем веб-сайте. .

Клинические исследования Placebo

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