Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 1, 2026, 8:43 PM EDT

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Showing 1–13 of 13 matching trials from the live ClinicalTrials.gov search.
Completed Phase 1 Interventional Accepts healthy volunteers

Dexpramipexole and Warfarin Drug Drug Interaction (DDI) Study

NCT01597310
Conditions
Healthy Volunteers
Interventions
Warfarin, Dexpramipexole
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Overland Park, Kansas
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Dexpramipexole, Dexpramipexole Placebo, Moxifloxacin
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 60 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Overland Park, Kansas
Conditions
Amyotrophic Lateral Sclerosis
Interventions
KNS-760704
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
21 Years to 80 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
19
States / cities
Little Rock, Arkansas • Los Angeles, California • San Francisco, California + 16 more
Completed Phase 3 Interventional Results available

Phase 3 Study of Dexpramipexole in ALS

NCT01281189
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Dexpramipexole, Placebo
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 80 Years
Enrollment
942 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
43
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Fresno, California + 39 more
Terminated Phase 3 Interventional Results available

Phase 3 Extension Study of Dexpramipexole in ALS

NCT01622088
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Dexpramipexole
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 80 Years
Enrollment
616 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
42
States / cities
Phoenix, Arizona • Fresno, California • Orange, California + 38 more
Conditions
Chronic Sinusitis With Nasal Polyps and Eosinophilia
Interventions
dexpramipexole
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
7
States / cities
Boca Raton, Florida • Baltimore, Maryland • Boston, Massachusetts + 4 more
Conditions
Hypereosinophilic Syndrome
Interventions
Dexpramipexole
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Eosinophilic Asthma, Asthma
Interventions
Dexpramipexole, Placebo
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 74 Years
Enrollment
534 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
36
States / cities
Los Angeles, California • Mission Viejo, California • Westminster, California + 30 more
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Placebo, Dexpramipexole 50 mg/day, Dexpramipexole 150 mg/day, Dexpramipexole 300 mg/day
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
21 Years to 80 Years
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
21
States / cities
Little Rock, Arkansas • Los Angeles, California • San Francisco, California + 18 more
Completed Phase 1 Interventional Accepts healthy volunteers

Dexpramipexole SAD/MAD Study

NCT01449578
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Dexpramipexole, Dexpramipexole Placebo
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 55 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Overland Park, Kansas
Conditions
Healthy Volunteers
Interventions
Dexpramipexole
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Saint Paul, Minnesota
Conditions
Amyotrophic Lateral Sclerosis, Renal Insufficiency
Interventions
Dexpramipexole (dose 1), Dexpramipexole (dose 2)
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
2
States / cities
Orlando, Florida • Brooklyn Center, Minnesota
Completed Phase 1 Interventional Accepts healthy volunteers

Dexpramipexole and Cimetidine Drug Drug Interaction (DDI)

NCT01536249
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Dexpramipexole, Cimetidine plus Dexpramipexole
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Overland Park, Kansas