risperidone and Substance Withdrawal Syndrome

risperidone has been researched along with Substance Withdrawal Syndrome in 59 studies

Risperidone: A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.
risperidone : A member of the class of pyridopyrimidines that is 2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one carrying an additional 2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl group at position 2.

Substance Withdrawal Syndrome: Physiological and psychological symptoms associated with withdrawal from the use of a drug after prolonged administration or habituation. The concept includes withdrawal from smoking or drinking, as well as withdrawal from an administered drug.

Research

Studies (59)

Authors

Clinical Trials (3)

Trial Overview

Trial Outcomes

AIMS

The Abnormal Involuntary Movement Scale (AIMS) assesses signs of tardive dyskinesia, a movement disorder that can occur with prolonged use of antipsychotic medication. The AIMS score ranges from 0 to 35, with higher scores indicating more severe symptoms. For each subject, the change in AIMS score between week 16 and randomization was calculated by subtraction, so that a positive value indicates an increase in AIMS over time. (NCT00417482)
Timeframe: Phase B, weeks 1-16 (study weeks 16-32)

Extrapyramidal Signs (EPS)

Extrapyramidal signs, also known as Parkinsonian signs, refer to signs of tremor, rigidity, and bradykinesia (slowed movement) that are seen in Parkinson's disease. Assessment of extrapyramidal signs (EPS) were made with the use of the Simpson-Angus scale (which ranges from 1-40) with higher scores indicating more extrapyramidal signs. For each subject, the change in EPS between week 16 and baseline (randomization) was calculated by subtraction, so that a positive value indicates an increase in EPS over time. (NCT00417482)
Timeframe: Phase B, weeks 1-16 (study weeks 16-32)

Mini Mental State Exam (MMSE)

The MMSE assesses cognition. Scores range from 0-30, with higher scores indicating better cognition. For each subject, the change in MMSE between week 16 and baseline (randomization) was calculated by subtraction, so that a positive value indicates an increase in MMSE over time. (NCT00417482)
Timeframe: Phase B, weeks 1-16 (study weeks 16-32)

Physical Self-Maintenance Scale (PSMS)

Physical Self-Maintenance Scale, which ranges from 1 to 30, with higher scores indicating WORSE functioning. For each subject, the change in PSMS between week 16 and randomization was calculated by subtraction, so that a positive value indicates an increase in PSMS (worse functioning) over time. (NCT00417482)
Timeframe: Phase B, weeks 1-16 (study weeks 16-32)

Relapse by Study Week 32

"A relapse occurred in Phase B (post-randomization) if both of the following criteria were met:~Increase in the Neuropsychiatric Inventory (NPI) core score of 30% or more OR a 5-point increase from the baseline NPI score at the end of Phase A~A score of 6 (much worse) or 7 (very much worse) on the Clinical Global Impression-Change (CGI-C) at any visit." (NCT00417482)
Timeframe: 0-16 weeks in Phase B (16-32 weeks in study)

Relapse by Study Week 48

Same definition and criteria as the primary outcome (NCT00417482)
Timeframe: 16-32 weeks in Phase B (32-48 weeks in study)

Treatment Emergent Symptoms Scale (TESS)

The Treatment Emergent Symptom Scale (TESS) assesses 26 somatic symptoms. Total scores range from 0-26, with a score of 0 or 1 for each item. Higher scores indicate more somatic symptoms. For each subject, the change in TESS between week 16 and baseline (randomization) was calculated by subtraction, so that a positive value indicates an increase in TESS over time. (NCT00417482)
Timeframe: Phase B, weeks 1-16 (study weeks 16-32)

Weight

For each subject, the change in weight in pounds between week 16 and randomization was calculated by subtraction, so that a positive value indicates an increase in weight over time. (NCT00417482)
Timeframe: Phase B, weeks 1-16 (study weeks 16-32)

Basic Activities of Daily Living (BADL)

Basic Activities of Daily Living with items for 6 functions: bathing, dressing, toileting, transferring, continence, and feeding. Each item is scored as unimpaired=1, impaired=0. Total score is the measure used, range 0-6; higher scores indicate better functioning. (NCT02129348)
Timeframe: Assessed at Week 0, Week2, Week 4, Week 6, Week 8, Week 10, Week 12

Change in Neuropsychiatric Inventory (NPI) Agitation/Aggression Domain Score

Neuropsychiatric Inventory (NPI) Agitation/Aggression Domain is the measure used that combines symptoms of agitation and aggression. Frequency X Severity rating score, range 0-12. Higher score indicates more agitation and aggressive behavior. (NCT02129348)
Timeframe: Assessed at screening, Week 0, Week 2, Week 4, Week 6, Week 8, Week 10, Week 12

Clinical Global Impression (CGI) Behavior Change

Clinical Global Impression (CGI) Behavior Change score is the measure used to assess change in overall behavior; scoring range 1-7 with higher scores indicating worsening over time and lower scores indicating improvement over time. Scores ranging from 1-3 indicate improvement. Only patients that demonstrated improvement at week 12 were reported; scores for earlier weeks were only used to assess progress throughout the study. (NCT02129348)
Timeframe: Week 12

Clinical Responder Defined as a 30% Decrease in NPI Core Score (Sum Score of NPI Domains of Agitation/Aggression, Delusions and Hallucinations) Together With a Clinical Global Impression (CGI) Behavior Change Score of 1 or 2

The patient is classified as a responder (score=1) if both criteria are met or as a non-responder (score=0) if both criteria are not met. The first criterion to determine responder status, NPI core score, has a scoring range 0-36; each of the three component scores for symptoms of agitation/aggression, delusions and hallucinations has a scoring range 0-12. For each symptom and the total score, higher score indicates more symptoms. The second criterion to determine responder status, Clinical Global Impression (CGI), is used to assess change in overall behavior; scoring range 1-7 with higher scores indicating worsening over time and lower scores indicating improvement over time. Only patients who met both criteria, assessed as change compared to baseline, were counted as responders; all other patients were non-responders. Patients that demonstrated improvement at week 12 were reported; scores for earlier weeks were only used to assess progress throughout the study. (NCT02129348)
Timeframe: Week 12

Folstein Mini-Mental Status Exam

30 item questionnaire used to assess degree of cognitive impairment. Orientation, registration, attention/calculation, recall, language, repetitions and commands are assessed. Total score is the measure used; range 0-30, higher scores indicate better global cognitive function. (NCT02129348)
Timeframe: Assessed at Screening, Week 12

Severe Impairment Battery

Neuropsychological test used to assess a patient's cognitive ability. The patient is asked to complete small tasks such as drawing shapes and printing their name. They are also asked to remember certain names and objects, such as a cup and a spoon, and the evaluator's first name. Total score is the measure used; range 0-100, higher scores indicate better cognition. (NCT02129348)
Timeframe: Assessed at Week 0, Week 12

Simpson-Angus Scale

Simpson Angus Scale for Extrapyramidal Sign requires in-person examination to assess gait, arm dropping, shoulder shaking, elbow rigidity, wrist rigidity, leg pendulousness, head dropping, glabella tap, tremor, and salivation. Total score is the measure used, range 0-40; higher scores indicate increased severity of signs. (NCT02129348)
Timeframe: Assessed at Week 0, Week 2, Week 4, Week 6, Week 8, Week 10, Week 12

Treatment Emergent Signs and Symptoms

Treatment Emergent Symptom Scale that covers 26 somatic symptoms, each rated as present (score=1) or absent (score=0). Total score is the measure used with scoring range 0-26; higher scores indicate more somatic symptoms. (NCT02129348)
Timeframe: Assessed at Week 0, Week 2, Week 4, Week 6, Week 8, Week 10, Week 12

Young Mania Rating Scale

Young Mania Rating Scale total score is the measure used to assess symptoms that occur in mania; each item is a symptom that is rated for severity. Scoring range 0-60; higher scores indicate more severe symptoms. (NCT02129348)
Timeframe: Assessed at Week 0, Week 2, Week 4, Week 6, Week 8, Week 10, Week 12

Zarit Caregiver Burden Interview

Zarit Caregiver Burden Interview with the caregiver asked to rank 22 items on a scale with responses for each item from 'never' (score 0) to 'nearly always' (score 4). Total score is the measure used; range 0-88 with higher scores indicating greater caregiver burden. (NCT02129348)
Timeframe: Assessed at Week 0, Week 4, Week 8, Week 10, Week 12

Average Over Time of Frequency of Drinking Days (Used to Evaluate Treatment Efficacy)

Frequency of drinking days is obtained each week retrospectively as the number of drinking days during the prior week (assessed using the Timeline Followback). Mixed models are used to obtain estimates of efficacy from the partial data provided by each subject while adherent to assigned treatment (under the 'missing at random' assumption). The 'explanatory' estimands (target of the mixed model estimation) are defined in terms of population quantities that would have occurred had all subjects remained on assigned treatment throughout the study. The point estimate for each arm is reported under Number. (NCT00130923)
Timeframe: 6 months

Average Over Time of Global Functioning (Used to Evaluate Treatment Efficacy)

A rater assesses social, occupational and psychological functioning on a hypothetical continuum of mental health - illness (using Global Assessment of Functioning); scores range from 100 to 1, where higher values represent a better outcome. Mixed models are used to obtain estimates of efficacy from the partial data provided by each subject while adherent to assigned treatment (under the 'missing at random' assumption). The 'explanatory' estimands (target of the mixed model estimation) are defined in terms of population quantities that would have occurred had all subjects remained on assigned treatment throughout the study. The point estimate for each arm is reported under Number. (NCT00130923)
Timeframe: 6 months

Average Over Time of Positive and Negative Symptoms (Used to Evaluate Treatment Efficacy)

A rater assesses positive and negative symptoms of schizophrenia using a 30-item scale (Positive and Negative Symptom Score) Scores range from 30 to 210, where higher values represent a worse outcome. Mixed models are used to obtain estimates of efficacy from the partial data provided by each subject while adherent to assigned treatment (under the 'missing at random' assumption). The 'explanatory' estimands (target of the mixed model estimation) are defined in terms of population quantities that would have occurred had all subjects remained on assigned treatment throughout the study. The point estimate for each arm is reported under Number. (NCT00130923)
Timeframe: 6 months

Average Over Time of Severity of Illness and Global Improvement (Used to Evaluate Treatment Efficacy)

A rater assesses the severity of illness and global impression using a scale from 1 to 7 (Clinical Global Impression), where higher values represent a worse outcome. Mixed models are used to obtain estimates of efficacy from the partial data provided by each subject while adherent to assigned treatment (under the 'missing at random' assumption). The 'explanatory' estimands (target of the mixed model estimation) are defined in terms of population quantities that would have occurred had all subjects remained on assigned treatment throughout the study. The point estimate for each arm is reported under Number. (NCT00130923)
Timeframe: 6 months

Change Over Time in Frequency of Heavy Drinking Days (Used to Evaluate Treatment Efficacy)

Frequency of heavy drinking days is obtained each week retrospectively as the number of heavy drinking days during the prior week (assessed by the Timeline Followback Scale). A heavy drinking day is defined as 4 or more drinks per day for a female and 5 or more drinks per day for a male. Mixed models are used to obtain estimates of efficacy from the partial data provided by each subject while adherent to assigned treatment (under the 'missing at random' assumption). The 'explanatory' estimands (target of the mixed model estimation) are defined in terms of population quantities that would have occurred had all subjects remained on assigned treatment throughout the study. The point estimate for each arm is reported under Number. (NCT00130923)
Timeframe: 6 months

Number of Participants With Medication Adherence

Number of participants with medication adherence (defined as taking medication at least 75% of the days in the treatment period). (NCT00130923)
Timeframe: 6 months

Reviews

7 reviews available for risperidone and Substance Withdrawal Syndrome

Trials

8 trials available for risperidone and Substance Withdrawal Syndrome

Other Studies

45 other studies available for risperidone and Substance Withdrawal Syndrome