Page last updated: 2024-10-21

4-aminopyridine and Body Weight

4-aminopyridine has been researched along with Body Weight in 12 studies

Body Weight: The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.

Research Excerpts

ExcerptRelevanceReference
"Fampridine (4-aminopyridine) is a potassium channel-blocking agent that has been reported to have therapeutic potential for improving walking and mobility in patients with multiple sclerosis (MS)."5.14Pharmacokinetics and tolerability of single escalating doses of fampridine sustained-release tablets in patients with multiple sclerosis: a Phase I-II, open-label trial. ( Henney, HR; Vollmer, T, 2009)
"The primary objective of this study, which followed on from the single-dose pharmacokinetic study, was to assess the steady-state pharmacokinetics of fampridine in patients with MS over 2 weeks of oral administration of open-label fampridine SR 20 mg BID."2.74Steady-state pharmacokinetics and tolerability of orally administered fampridine sustained-release 10-mg tablets in patients with multiple sclerosis: a 2-week, open-label, follow-up study. ( Blight, AR; Henney, HR; Vollmer, T, 2009)

Research

Studies (12)

TimeframeStudies, this research(%)All Research%
pre-19901 (8.33)18.7374
1990's1 (8.33)18.2507
2000's7 (58.33)29.6817
2010's3 (25.00)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Samara, E1
Winkle, P1
Pardo, P1
Henney, HR3
Way, SL1
Brown, E1
Lee, A1
Blight, AR2
Goddeyne, C1
Nichols, J1
Wu, C1
Anderson, T1
Vollmer, T2
Porto, NP1
Jucá, DM1
Lahlou, S1
Coelho-de-Souza, AN1
Duarte, GP1
Magalhães, PJ1
Bubolz, AH1
Li, H1
Wu, Q1
Liu, Y1
Heywood, JL1
McEntee, GM1
Stickland, NC1
Spöhr, F1
Busch, CJ1
Reich, C1
Motsch, J1
Gebhard, MM1
Kuebler, WM1
Bloch, KD1
Weimann, J1
Guenthner, CJ1
McCaughey, SA1
Tordoff, MG1
Baird, JP1
Bénitah, JP1
Gomez, AM1
Bailly, P1
Da Ponte, JP1
Berson, G1
Delgado, C1
Lorente, P1
McDaniel, SS1
Platoshyn, O1
Yu, Y1
Sweeney, M1
Miriel, VA1
Golovina, VA1
Krick, S1
Lapp, BR1
Wang, JY1
Yuan, JX1
Sharp, NA1
Neel, DS1
Parsons, RL1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Dalfampridine After Optic Neuritis to Improve Visual Function in Multiple Sclerosis[NCT01337986]Phase 2/Phase 353 participants (Actual)Interventional2011-05-31Completed
Phase 2 Study of 4-Aminopyridine for the Treatment of Episodic Ataxia Type 2[NCT01543750]Phase 20 participants (Actual)InterventionalWithdrawn
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Change From Baseline in Raw Letters by EDTRS 5% Contrast Sensitivity

Intent to treat analysis of treatment effect in primary endpoint EDTRS 5% Contrast Sensitivity. Change in the number of letters able to read while on Dalfampridine and Placebo relative to their baseline scores. (NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

Interventionletters (Mean)
Dalfampridine3
Placebo2.5

Changes in Color Vision Total Error Score From Baseline Based Upon the Farnsworth Munsell Hue 100 Sort Test (FM100).

Dalfampridine will change color vision Total Error Scores from baseline on the Farnsworth Munsell 100 Hue Sort Test. Farnsworth Munsell 100 Hue Test requires placing 100 color palettes in the correct order based upon color hue. Scores are determined by the frequency and severity of any displacement in the correct order. One error equates to one misplaced hue, by one step or position. An error score greater than 500 indicates virtually no color discrimination. An error score of 0 indicates no errors in ordering the hues. A Total Error Score of 0 to 128 could be seen in a normal population. (NCT01337986)
Timeframe: Visit 1 (Week 0 - baseline), Visit 2 (Week 3 - postintervention 1) and Visit 3 (Week 8 - post intervention 2)

InterventionFM100 Total Error Score (Mean)
Dalfampridine-13.0
Placebo-10.6

Dalfampridine Effect on Quality of Life Change From Baseline.

Dalfampridine treatment will result in change in quality of life. The National Eye Institute Visual Function Questionnaire consists of 25 questions characterizing visual function at home and in the community. Score ranges from 100 (best) to 0 (worst). (NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

InterventionNEI VFQ percentage (Median)
Dalfampridine0
Placebo0

Difference in EDTRS 5% Contrast Sensitivity (LogMAR Score) at Visits 2 and 3 Relative to Visit 1

Intent to treat analysis of treatment effect in primary endpoint EDTRS 5% Contrast Sensitivity. Improvement from baseline scores. (NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

Intervention5% Contrast LogMAR Score (Mean)
Dalfampridine0.06
Placebo0.05

Difference in Pelli- Robson Score at Visits 2 and 3 Relative to Visit 1

Difference in Pelli- Robson Score at Visits 2 and 3 Relative to Visit 1 on Dalfampridine vs Placebo. Pelli-Robson is scored based upon the numbers read on the chart converted to LogMAR units. The scale is 0.00 (worst) to 2.35 (best). (NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

Interventionunits on a scale (Mean)
Dalfampridine0.07
Placebo0.06

Efficacy of Dalfampridine on Visual Function Assessed by Change From Baseline in Raw Letters by EDTRS 5% Contrast Sensitivity

Per Protocol Analysis to assess difference in number of letters on the EDTRS 5% Contrast Sensitivity (LogMAR) Chart scores at visits 2 and 3 Relative to Visit 1 (NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

Interventionletters (Mean)
Group B: Dalfampridine2
Group B: Placebo2
Group A: Placebo4
Group A: Dalfampridine3

Efficacy of Dalfampridine on Visual Function by Early Diabetic Treatment Retinopathy Study (EDTRS) 5% Contrast Sensitivity Scores

Per Protocol Analysis to assess differences in EDTRS 5% Contrast Sensitivity (LogMAR) Scores at visits 2 and 3 Relative to Visit 1 on patients taking Dalfampridine vs Placebo. (NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

InterventionLogMAR Score (Mean)
Group B: Dalfampridine-0.04
Group B: Placebo-0.06
Group A: Placebo-0.08
Group A: Dalfampridine-0.06

Percentage of Eyes That Improved by 2 Lines (10 Letters) on the Sloan 5% Contrast Sensitivity Chart

(NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

InterventionPercentages of eyes that improved (Number)
Dalfampridine9.7
Placebo11.1
Both11.1
None68.1

Percentage of Eyes That Improved by One-line (5 Letters)

Percentage of eyes that improved by one-line (5 letters) on the 5% contrast sensitivity chart (NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

InterventionPercent of Eyes (Number)
Dalfampridine11.1
Placebo15.3
Both37.5
Neither36.1

Visual Evoked Potential P100 Latency Per Treatment Arm

Visual evoked potential 60min P100 latency on dalfampridine vs. placebo. (NCT01337986)
Timeframe: Visit 1 (Week 0), Visit 2 (Week 3) and Visit 3 (Week 8)

Interventionmilliseconds (Mean)
Dalfampridine121.6
Placebo120.2

Odds Ratio Quartile of Visual Field Index

"The Visual Field Index (VFI) is a global index that assigns a number between 1% to 100% based on an aggregate percentage of visual function, with 100% being a perfect age-adjusted visual field.~Probability of falling in the best quartile for visual field (VFI) measures (Q1), relative to the three next quartiles for worse VFIs (Q2-4), while on Dalfampridine vs Placebo. Due to the clustered observations at different times in a cross-over design, the visual field data is not suited to a normal theory model and should not be expressed as a continuous variable. Thus, a categorical model that uses a multinomial distribution for measurement of 4 categories was selected for proper statistical modeling, with results expressed as odds ratios." (NCT01337986)
Timeframe: Visit 1 (Week 0 - baseline), Visit 2 (Week 3 - post intervention 1) and Visit 3 (Week 8 - post intervention 2)

,
InterventionVisual Field Index % of normal vision (Mean)
Baseline (Visit 1)Post Intervention 1 (Visit 2)Post Intervention 2 (Visit 3)
Dalfampridine Then Placebo77.5378.5079.71
Placebo Then Dalfampridine85.3886.6586.00

Trials

3 trials available for 4-aminopyridine and Body Weight

ArticleYear
Pharmacokinetics of dalfampridine extended release 7.5-mg tablets in healthy subjects and individuals with mild and moderate renal impairment: an open-label study.
    Journal of clinical pharmacology, 2014, Volume: 54, Issue:1

    Topics: 4-Aminopyridine; Adolescent; Adult; Age Factors; Aged; Analysis of Variance; Area Under Curve; Body

2014
Pharmacokinetics and tolerability of single escalating doses of fampridine sustained-release tablets in patients with multiple sclerosis: a Phase I-II, open-label trial.
    Clinical therapeutics, 2009, Volume: 31, Issue:10

    Topics: 4-Aminopyridine; Aged; Area Under Curve; Body Weight; Chromatography, High Pressure Liquid; Delayed-

2009
Pharmacokinetics and tolerability of single escalating doses of fampridine sustained-release tablets in patients with multiple sclerosis: a Phase I-II, open-label trial.
    Clinical therapeutics, 2009, Volume: 31, Issue:10

    Topics: 4-Aminopyridine; Aged; Area Under Curve; Body Weight; Chromatography, High Pressure Liquid; Delayed-

2009
Pharmacokinetics and tolerability of single escalating doses of fampridine sustained-release tablets in patients with multiple sclerosis: a Phase I-II, open-label trial.
    Clinical therapeutics, 2009, Volume: 31, Issue:10

    Topics: 4-Aminopyridine; Aged; Area Under Curve; Body Weight; Chromatography, High Pressure Liquid; Delayed-

2009
Pharmacokinetics and tolerability of single escalating doses of fampridine sustained-release tablets in patients with multiple sclerosis: a Phase I-II, open-label trial.
    Clinical therapeutics, 2009, Volume: 31, Issue:10

    Topics: 4-Aminopyridine; Aged; Area Under Curve; Body Weight; Chromatography, High Pressure Liquid; Delayed-

2009
Steady-state pharmacokinetics and tolerability of orally administered fampridine sustained-release 10-mg tablets in patients with multiple sclerosis: a 2-week, open-label, follow-up study.
    Clinical therapeutics, 2009, Volume: 31, Issue:10

    Topics: 4-Aminopyridine; Aged; Area Under Curve; Body Weight; Delayed-Action Preparations; Electrocardiograp

2009
Steady-state pharmacokinetics and tolerability of orally administered fampridine sustained-release 10-mg tablets in patients with multiple sclerosis: a 2-week, open-label, follow-up study.
    Clinical therapeutics, 2009, Volume: 31, Issue:10

    Topics: 4-Aminopyridine; Aged; Area Under Curve; Body Weight; Delayed-Action Preparations; Electrocardiograp

2009
Steady-state pharmacokinetics and tolerability of orally administered fampridine sustained-release 10-mg tablets in patients with multiple sclerosis: a 2-week, open-label, follow-up study.
    Clinical therapeutics, 2009, Volume: 31, Issue:10

    Topics: 4-Aminopyridine; Aged; Area Under Curve; Body Weight; Delayed-Action Preparations; Electrocardiograp

2009
Steady-state pharmacokinetics and tolerability of orally administered fampridine sustained-release 10-mg tablets in patients with multiple sclerosis: a 2-week, open-label, follow-up study.
    Clinical therapeutics, 2009, Volume: 31, Issue:10

    Topics: 4-Aminopyridine; Aged; Area Under Curve; Body Weight; Delayed-Action Preparations; Electrocardiograp

2009

Other Studies

9 other studies available for 4-aminopyridine and Body Weight

ArticleYear
Repetitive mild traumatic brain injury induces ventriculomegaly and cortical thinning in juvenile rats.
    Journal of neurophysiology, 2015, May-01, Volume: 113, Issue:9

    Topics: 4-Aminopyridine; Action Potentials; Animals; Animals, Newborn; Body Weight; Brain Injuries; Cerebral

2015
Effects of K+channels inhibitors on the cholinergic relaxation of the isolated aorta of adult offspring rats exposed to maternal diabetes.
    Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association, 2010, Volume: 118, Issue:6

    Topics: 4-Aminopyridine; Acetylcholine; Aging; Animals; Aorta; Blood Glucose; Body Weight; Diabetes Mellitus

2010
Enhanced oxidative stress impairs cAMP-mediated dilation by reducing Kv channel function in small coronary arteries of diabetic rats.
    American journal of physiology. Heart and circulatory physiology, 2005, Volume: 289, Issue:5

    Topics: 4-Aminopyridine; Animals; Antioxidants; Blood Glucose; Body Weight; Colforsin; Coronary Vessels; Cyc

2005
In ovo neuromuscular stimulation alters the skeletal muscle phenotype of the chick.
    Journal of muscle research and cell motility, 2005, Volume: 26, Issue:1

    Topics: 4-Aminopyridine; Animals; Body Weight; Chick Embryo; In Vitro Techniques; Movement; Muscle Fibers, S

2005
4-Aminopyridine restores impaired hypoxic pulmonary vasoconstriction in endotoxemic mice.
    Anesthesiology, 2007, Volume: 107, Issue:4

    Topics: 4-Aminopyridine; Algorithms; Angiotensin II; Animals; Body Weight; Dose-Response Relationship, Drug;

2007
Licking for taste solutions by potassium-deprived rats: specificity and mechanisms.
    Physiology & behavior, 2008, Mar-18, Volume: 93, Issue:4-5

    Topics: 4-Aminopyridine; Animals; Behavior, Animal; Body Weight; Dose-Response Relationship, Drug; Drinking

2008
Heterogeneity of the early outward current in ventricular cells isolated from normal and hypertrophied rat hearts.
    The Journal of physiology, 1993, Volume: 469

    Topics: 4-Aminopyridine; Animals; Aorta, Abdominal; Body Weight; Cardiomegaly; Cells, Cultured; Electrophysi

1993
Anorexic effect of K+ channel blockade in mesenteric arterial smooth muscle and intestinal epithelial cells.
    Journal of applied physiology (Bethesda, Md. : 1985), 2001, Volume: 91, Issue:5

    Topics: 4-Aminopyridine; Animals; Appetite Depressants; Body Weight; Calcium; Cells, Cultured; Electrophysio

2001
Influence of thyroid hormone levels on the electrical and mechanical properties of rabbit papillary muscle.
    Journal of molecular and cellular cardiology, 1985, Volume: 17, Issue:2

    Topics: 4-Aminopyridine; Action Potentials; Aminopyridines; Animals; Body Weight; Electric Stimulation; Elec

1985