Page last updated: 2024-10-31

methylphenidate and Cryoglobulinemia

methylphenidate has been researched along with Cryoglobulinemia in 1 studies

Methylphenidate: A central nervous system stimulant used most commonly in the treatment of ATTENTION DEFICIT DISORDER in children and for NARCOLEPSY. Its mechanisms appear to be similar to those of DEXTROAMPHETAMINE. The d-isomer of this drug is referred to as DEXMETHYLPHENIDATE HYDROCHLORIDE.
methylphenidate : A racemate comprising equimolar amounts of the two threo isomers of methyl phenyl(piperidin-2-yl)acetate. A central stimulant and indirect-acting sympathomimetic, is used (generally as the hydrochloride salt) in the treatment of hyperactivity disorders in children and for the treatment of narcolepsy.
methyl phenyl(piperidin-2-yl)acetate : A amino acid ester that is methyl phenylacetate in which one of the hydrogens alpha to the carbonyl group is replaced by a piperidin-2-yl group.

Cryoglobulinemia: A condition characterized by the presence of abnormal quantities of CRYOGLOBULINS in the blood. Upon cold exposure, these abnormal proteins precipitate into the microvasculature leading to restricted blood flow in the exposed areas.

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
Okon, T1

Clinical Trials (1)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Oral Ketamine for Control of Chronic Pain in Children[NCT01369680]Phase 112 participants (Actual)Interventional2011-05-31Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Neurocognitive Effect

"Baseline neurocognitive testing will be done before study drug is given. Subjects will be reassessed for any changes in neurocognitive scores at end of dosing (week 2) and at three weeks off study drug (week 14). Significant changes were measured at week 14 compared to baseline. Week 2 was measured to inform future studies.~The neurocognitive scores are standardized scores with a mean of 100; low scores correlate with low neurocognitive function, while high scores correlate with high function. A significant change is defined as greater than or equal to 10% decrease in scores." (NCT01369680)
Timeframe: At 14 weeks

Interventionparticipants (Number)
Ketamine 0.25 mg/kg/Dose0
Ketamine 0.5 mg/kg/Dose0
Ketamine 1 mg/kg/Dose0
Ketamine 1.5 mg/kg/Dose0

Norketamine Cmax (Measured in ng/mL).

Pharmacokinetic testing will be done during chronic ketamine administration on subjects consenting to additional testing one week into study drug administration. This is to further describe the activity of ketamine in the blood of children when administered chronically and to enable comparison of any clinical effect or toxicity with steady state levels of ketamine in children. (NCT01369680)
Timeframe: At week 1

Interventionng/mL (Mean)
Ketamine 0.25 mg/kg/Dose37.5
Ketamine 0.5 mg/kg/Dose135
Ketamine 1 mg/kg/Dose250

Number of Participants Tolerating Dose

According to CTCae any dose causing grade 2 or worse toxicity will be an untolerated dose. Tolerability is defined as ability to take the medication for 2 weeks without having a grade 2 or worse toxicity. (NCT01369680)
Timeframe: Up to 2 weeks

Interventionparticipants (Number)
Ketamine 0.25 mg/kg/Dose3
Ketamine 0.5 mg/kg/Dose3
Ketamine 1 mg/kg/Dose3
Ketamine 1.5 mg/kg/Dose1

Pain Control

"Subjects will be assessed for clinically significant change in pain scores during and after study drug administration. Significant change in pain scores were determined at week 2, though week 14 scores were collected as well.~Participants with a 2 point (or greater) decrease in pain scores compared to baseline were considered to have responded. The NRS scale was used, the scale ranges from 0-10, with 10 being the most pain." (NCT01369680)
Timeframe: Week 2

Interventionparticipants (Number)
Ketamine 0.25 mg/kg/Dose3
Ketamine 0.5 mg/kg/Dose0
Ketamine 1 mg/kg/Dose2
Ketamine 1.5 mg/kg/Dose0

Reviews

1 review available for methylphenidate and Cryoglobulinemia

ArticleYear
Ketamine: an introduction for the pain and palliative medicine physician.
    Pain physician, 2007, Volume: 10, Issue:3

    Topics: Adult; Amines; Analgesics; Analgesics, Opioid; Central Nervous System; Cryoglobulinemia; Cyclohexane

2007