Palonosetron and Hydroxyzine to Reduce Opioid Withdrawal

NCT ID: NCT00661674

Last Updated: 2017-06-05

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-04-30

Study Completion Date

2008-08-31

Brief Summary

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Opioid medications are commonly used for pain relief. When given over time, physical dependence can occur. This results in unpleasant side effects--such as agitation and nausea--if opioid medications are suddenly stopped. We are interested in knowing if a medication named Ondansetron can help ease or prevent symptoms associated with opioid withdrawal. We are also interested in knowing if a similar (but more potent FDA-approved drug, palonosetron) can more effectively treat withdrawal symptoms with or without combination with an antihistamine called hydroxyzine (vistaril).

Detailed Description

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We hope to learn if Palonosetron and/or combination with hydroxyzine can be used to prevent or attenuate the signs and symptoms of opioid withdrawal. If we find that it can help prevent these symptoms, it may become a new treatment that can aid patients suffering from these symptoms.

Conditions

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Substance-Related Disorders

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

There were three treatment arms to the study: Placebo, Palonosetron, and Palonosetron + Hydroxyzine (Combo). Participants were not randomized in between these arms, all participants completed each arm of the study in a cross-over study methodology (Placebo, Palonosetron, Palonosetron + Hydroxyzene (combo). Participants were individually randomized into the order in which they participated in each arm.

Per sequence each individual participant underwent the following randomization schedule:

Participant 1: Placebo, Combo, Palonosetron Participant 2: Palonosetron, Combo, Placebo Participant 3: Palonosetron, Combo, Placebo Participant 4: Combo, Placebo, Palonosetron Participant 5: Placebo, Palonosetron, Combo Participant 6: Combo, Palonosetron, Placebo Participant 7: Combo, Placebo, Palonosetron Participant 8: Combo, Palonosetron, Placebo Participant 9: Palonosetron, Placebo, Combo Participant 10: Placebo, Combo, Palonosetron
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Sequence 1: Placebo, Combo, Palonosetron

At T = 0 (minutes), healthy (non-opioid dependent, non-substance abuser) male volunteers (N=10) were pre-treated with either placebo (0.9% normal saline), palonosetron IV (0.75mg), or palonosetron IV (0.75mg) and hydroxyzine per os (PO) (100mg) in a crossover study design. This was followed at T = 30 by intravenous morphine (10mg/70kg). At T = 165, 10mg/70kg naloxone IV was given to precipitate opioid withdrawal. The objective opioid withdrawal score (OOWS) and subjective opioid withdrawal score (SOWS) were determined 5 and 15 minutes after naloxone administration (T = 170, 180, respectively). Baseline measurements were recorded at T = -30 and T = -15.

Week 1: Placebo

Week 2: Palonosetron + Hydroxyzine Combo

Week 3: Palonosetron

Group Type EXPERIMENTAL

Palonosetron

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Hydroxyzine

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Placebo

Intervention Type OTHER

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Sequence 2: Palonosetron, Combo, Placebo

At T = 0 (minutes), healthy (non-opioid dependent, non-substance abuser) male volunteers (N=10) were pre-treated with either placebo (0.9% normal saline), palonosetron IV (0.75mg), or palonosetron IV (0.75mg) and hydroxyzine per os (PO) (100mg) in a crossover study design. This was followed at T = 30 by intravenous morphine (10mg/70kg). At T = 165, 10mg/70kg naloxone IV was given to precipitate opioid withdrawal. The objective opioid withdrawal score (OOWS) and subjective opioid withdrawal score (SOWS) were determined 5 and 15 minutes after naloxone administration (T = 170, 180, respectively). Baseline measurements were recorded at T = -30 and T = -15.

Week 1: Palonosetron

Week 2: Palonosetron + Hydroxyzine Combo

Week 3: Placebo

Group Type EXPERIMENTAL

Palonosetron

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Hydroxyzine

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Placebo

Intervention Type OTHER

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Sequence 3: Combo, Placebo, Palonosetron

At T = 0 (minutes), healthy (non-opioid dependent, non-substance abuser) male volunteers (N=10) were pre-treated with either placebo (0.9% normal saline), palonosetron IV (0.75mg), or palonosetron IV (0.75mg) and hydroxyzine per os (PO) (100mg) in a crossover study design. This was followed at T = 30 by intravenous morphine (10mg/70kg). At T = 165, 10mg/70kg naloxone IV was given to precipitate opioid withdrawal. The objective opioid withdrawal score (OOWS) and subjective opioid withdrawal score (SOWS) were determined 5 and 15 minutes after naloxone administration (T = 170, 180, respectively). Baseline measurements were recorded at T = -30 and T = -15.

Week 1: Palonosetron + Hydroxyzine Combo

Week 2: Placebo

Week 3: Palonosetron

Group Type EXPERIMENTAL

Palonosetron

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Hydroxyzine

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Placebo

Intervention Type OTHER

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Sequence 4: Placebo, Palonosetron, Combo

At T = 0 (minutes), healthy (non-opioid dependent, non-substance abuser) male volunteers (N=10) were pre-treated with either placebo (0.9% normal saline), palonosetron IV (0.75mg), or palonosetron IV (0.75mg) and hydroxyzine per os (PO) (100mg) in a crossover study design. This was followed at T = 30 by intravenous morphine (10mg/70kg). At T = 165, 10mg/70kg naloxone IV was given to precipitate opioid withdrawal. The objective opioid withdrawal score (OOWS) and subjective opioid withdrawal score (SOWS) were determined 5 and 15 minutes after naloxone administration (T = 170, 180, respectively). Baseline measurements were recorded at T = -30 and T = -15.

Week 1: Placebo

Week 2: Palonosetron only

Week 3: Palonosetron + Hydroxyzine Combo

Group Type EXPERIMENTAL

Palonosetron

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Hydroxyzine

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Placebo

Intervention Type OTHER

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Sequence 5: Combo, Palonosetron, Placebo

At T = 0 (minutes), healthy (non-opioid dependent, non-substance abuser) male volunteers (N=10) were pre-treated with either placebo (0.9% normal saline), palonosetron IV (0.75mg), or palonosetron IV (0.75mg) and hydroxyzine per os (PO) (100mg) in a crossover study design. This was followed at T = 30 by intravenous morphine (10mg/70kg). At T = 165, 10mg/70kg naloxone IV was given to precipitate opioid withdrawal. The objective opioid withdrawal score (OOWS) and subjective opioid withdrawal score (SOWS) were determined 5 and 15 minutes after naloxone administration (T = 170, 180, respectively). Baseline measurements were recorded at T = -30 and T = -15.

Week 1: Palonosetron + Hydroxyzine Combo

Week 2: Palonosetron only

Week 3: Placebo

Group Type EXPERIMENTAL

Palonosetron

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Hydroxyzine

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Placebo

Intervention Type OTHER

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Sequence 6: Palonosetron, Placebo, Combo

At T = 0 (minutes), healthy (non-opioid dependent, non-substance abuser) male volunteers (N=10) were pre-treated with either placebo (0.9% normal saline), palonosetron IV (0.75mg), or palonosetron IV (0.75mg) and hydroxyzine per os (PO) (100mg) in a crossover study design. This was followed at T = 30 by intravenous morphine (10mg/70kg). At T = 165, 10mg/70kg naloxone IV was given to precipitate opioid withdrawal. The objective opioid withdrawal score (OOWS) and subjective opioid withdrawal score (SOWS) were determined 5 and 15 minutes after naloxone administration (T = 170, 180, respectively). Baseline measurements were recorded at T = -30 and T = -15.

Week 1: Palonosetron only

Week 2: Placebo

Week 3:Palonosetron + Hydroxyzine Combo

Group Type EXPERIMENTAL

Palonosetron

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Hydroxyzine

Intervention Type DRUG

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Placebo

Intervention Type OTHER

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Interventions

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Palonosetron

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Intervention Type DRUG

Hydroxyzine

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Intervention Type DRUG

Placebo

Over 3 study visits, patients will receive one of the following treatment regimens:

* Placebo saline IV and sugar pill
* 0.75 mg Palonosetron IV and sugar pill
* 0.75 mg Palonosetron IV and 100 mg hydroxyzine PO

Intervention Type OTHER

Other Intervention Names

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Aloxi Vistaril, Atarax

Eligibility Criteria

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Inclusion Criteria

* Healthy males
* Ages 18-35
* No allergies to morphine or palonosetron
* No history of addiction or substance abuse

Exclusion Criteria

* Female
* Younger than 18 or older than 35
* History of substance abuse
* Raynaud's disease or coronary artery disease
* Allergies to morphine or palonosetron
Minimum Eligible Age

18 Years

Maximum Eligible Age

35 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Stanford University

OTHER

Sponsor Role lead

Responsible Party

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Larry Fu-nien Chu

Professor of Anesthesia

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Dr Larry Fu-nien Chu

Role: PRINCIPAL_INVESTIGATOR

Stanford University

Locations

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Stanford University School of Medicine

Stanford, California, United States

Site Status

Countries

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United States

References

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Other Identifiers

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SU-04152008-1099

Identifier Type: -

Identifier Source: org_study_id

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