Page last updated: 2024-10-19

phenylacetic acid and Amyotrophic Lateral Sclerosis

phenylacetic acid has been researched along with Amyotrophic Lateral Sclerosis in 1 studies

phenylacetic acid : A monocarboxylic acid that is toluene in which one of the hydrogens of the methyl group has been replaced by a carboxy group.

Amyotrophic Lateral Sclerosis: A degenerative disorder affecting upper MOTOR NEURONS in the brain and lower motor neurons in the brain stem and SPINAL CORD. Disease onset is usually after the age of 50 and the process is usually fatal within 3 to 6 years. Clinical manifestations include progressive weakness, atrophy, FASCICULATION, hyperreflexia, DYSARTHRIA, dysphagia, and eventual paralysis of respiratory function. Pathologic features include the replacement of motor neurons with fibrous ASTROCYTES and atrophy of anterior SPINAL NERVE ROOTS and corticospinal tracts. (From Adams et al., Principles of Neurology, 6th ed, pp1089-94)

Research

Studies (1)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's1 (100.00)29.6817
2010's0 (0.00)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Cudkowicz, ME1
Andres, PL1
Macdonald, SA1
Bedlack, RS1
Choudry, R1
Brown, RH1
Zhang, H1
Schoenfeld, DA1
Shefner, J1
Matson, S1
Matson, WR1
Ferrante, RJ1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
A Pharmacokinetic and Pharmacodynamic Study of AMX0035 in Patients With ALS[NCT04987671]Phase 1/Phase 214 participants (Anticipated)Interventional2021-08-05Active, not recruiting
Evaluation of the Safety, Tolerability, Efficacy and Activity of AMX0035, a Fixed Combination of Phenylbutyrate (PB) and Tauroursodeoxycholic Acid (TUDCA), for the Treatment of ALS[NCT03127514]Phase 2137 participants (Actual)Interventional2017-06-22Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Accurate Testing of Limb Isometric Strength (ATLIS) Total Score Change

The ATLIS device assess the isometric muscle strength of six upper-limb and six lower-limb muscle groups. At least two trials are performed for each muscle group to assess change in rate of decline of isometric muscle strength over treatment duration. Values are standardized to the percentage of predicted normal strength based on sex, age, weight, and height. Results are presented as percent of predicted normal. (NCT03127514)
Timeframe: 24 Weeks

Intervention% of Predicted Normal Change Per Month (Least Squares Mean)
Placebo-3.54
AMX0035-3.03

Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R) Slope Change

Change in slope of Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R) over treatment duration. The ALSFRS-R consists of 12 items across 4 subdomains of function (bulbar, fine motor, gross motor, and breathing) with each item scored on a scale from 0 (total loss of function) to 4 (no loss of function). Total scores range from 0 to 48, with higher scores indicating better function. (NCT03127514)
Timeframe: 24 Weeks

InterventionChange in ALSFRS-R Total Score Per Month (Least Squares Mean)
Placebo-1.66
AMX0035-1.24

Change in Plasma Levels of Phosphorylated Axonal Neurofilament H Subunit (pNF-H)

Neuronal degeneration releases phosphorylated axonal neurofilament H subunit (pNF-H) into the cerebrospinal fluid and subsequently the blood and is thought to be a potential biomarker of motor neuron degeneration; elevated plasma levels of pNF-H are presumed to correlate with neuronal injury. Change in levels of plasma pNF-H were measured from baseline to week 24 (NCT03127514)
Timeframe: 24 Weeks

Interventionpg/ml Per Month (Least Squares Mean)
Placebo-2.34
AMX00353.58

Death, Tracheostomy, and Hospitalization

The composite outcome was defined as death, a death-equivalent event (which consisted of only tracheostomy in one participant in this trial), or hospitalization, whichever occurred first; there were no instances of permanent ventilation delivered by noninvasive means in the study. (NCT03127514)
Timeframe: 24 Weeks

Interventionevents (Number)
Placebo17
AMX003518

Number of Participants in Each Group Able to Remain on Study Drug Until Planned Discontinuation

A comparison of the number of participants in each group able to remain on study drug until planned discontinuation between groups (NCT03127514)
Timeframe: 24 weeks

InterventionParticipants (Count of Participants)
Placebo38
AMX003561

Number of Participants With Adverse Events

Comparison Between Groups of Number of Participants With Adverse Events Until Planned Completion (NCT03127514)
Timeframe: 24 Weeks

InterventionParticipants (Count of Participants)
Placebo46
AMX003586

Rate of Decline in Slow Vital Capacity (SVC)

Respiratory muscle function was assessed according to slow vital capacity (SVC). SVC was measured in an upright position for at least three trials per assessment. SVC volumes were standardized to the percentage of predicted normal value based on age, sex, and height. (NCT03127514)
Timeframe: 24 Weeks

Intervention% of Predicted Normal Change Per Month (Least Squares Mean)
Placebo-4.03
AMX0035-3.10

Trials

1 trial available for phenylacetic acid and Amyotrophic Lateral Sclerosis

ArticleYear
Phase 2 study of sodium phenylbutyrate in ALS.
    Amyotrophic lateral sclerosis : official publication of the World Federation of Neurology Research Group on Motor Neuron Diseases, 2009, Volume: 10, Issue:2

    Topics: Aged; Amyotrophic Lateral Sclerosis; Anticonvulsants; Dose-Response Relationship, Drug; Drug Therapy

2009
Phase 2 study of sodium phenylbutyrate in ALS.
    Amyotrophic lateral sclerosis : official publication of the World Federation of Neurology Research Group on Motor Neuron Diseases, 2009, Volume: 10, Issue:2

    Topics: Aged; Amyotrophic Lateral Sclerosis; Anticonvulsants; Dose-Response Relationship, Drug; Drug Therapy

2009
Phase 2 study of sodium phenylbutyrate in ALS.
    Amyotrophic lateral sclerosis : official publication of the World Federation of Neurology Research Group on Motor Neuron Diseases, 2009, Volume: 10, Issue:2

    Topics: Aged; Amyotrophic Lateral Sclerosis; Anticonvulsants; Dose-Response Relationship, Drug; Drug Therapy

2009
Phase 2 study of sodium phenylbutyrate in ALS.
    Amyotrophic lateral sclerosis : official publication of the World Federation of Neurology Research Group on Motor Neuron Diseases, 2009, Volume: 10, Issue:2

    Topics: Aged; Amyotrophic Lateral Sclerosis; Anticonvulsants; Dose-Response Relationship, Drug; Drug Therapy

2009