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NCT Number: NCT03360799

Questionnaires in Assessing Attitudes About Legalization of Marijuana Use in Participants With Cancer

This trial studies attitudes about legalization of marijuana use in participants with cancer. Questionnaires may help doctors to learn about and compare the attitudes that patients in non-legalized and legalized states have towards the legalization of medical marijuana.

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Key information

Conditions

Malignant Neoplasm Neoplasms

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Banner MD Anderson Cancer Center, Gilbert, Arizona, United States

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About this study

PRIMARY OBJECTIVES:

I. To compare the proportion of cancer patients' who have a positive attitude about legalizing marijuana for medical purposes between those in a legalized versus (vs.) a non-legalized state.

SECONDARY OBJECTIVES:

I. To evaluate the association of cancer patients' belief in the usefulness of medical marijuana in their state of residency (Texas versus Arizona).

II. To examine the association of demographic, physical and psychosocial characteristics of patients and their perception of medical marijuana.

III. To examine the preference of patients for treatment of pain, anxiety and depression between medical marijuana vs. opioids, anti-anxiety and anti-depressant medications.

IV. To examine the association of media to perception of use of medical marijuana.

V. To evaluate the association of cancer patients' attitude about legalizing marijuana for medical purposes vs. recreational purposes.

VI. To examine the association of patients who have used marijuana for certain medical conditions/symptoms and their belief of how it has affected that condition/symptom.

VII. To compare demographic, physical and psychosocial characteristics of patients who have used marijuana for medical purposes.

VIII. To compare demographic, physical and psychosocial characteristics of patients who have used marijuana for non-medical purposes. IX. To compare demographic, physical and psychosocial characteristics of patients who believe marijuana is useful for medical reasons.

OUTLINE:

Participants complete 5 questionnaires.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients (inpatient or outpatient) seen by the Palliative Care team at Banner MD Anderson or UT MD Anderson
  • Patients able to speak and read English
  • Patients enrolled in each site must be a resident of the state where that site is located (e.g. if a patient is enrolled at UT MD Anderson Cancer Center [MDACC], they should be resident of the state of Texas)
  • Patients should have a cancer diagnosis

Exclusion criteria

  • Patients who are not able to speak or read English
  • Altered mental status as determined by the interviewer based on the ability to understand the nature of the study and consent process

Treatment and study plan

Questionnaire Administration

Other

Complete questionnaires

Primary outcomes

  1. Positive attitude regarding the legalization of medical marijuana for medical purposes

    Time frame: Up to 1 year

    Will be defined as answering "Completely Agree" or "Slightly Agree" to the question 1 in Marijuana Survey for Patients. The number of subjects with positive attitude towards legalizing medical marijuana will be compared between patients from Texas and Arizona States using one-sided Fisher's exact test or chi-squared test, whichever appropriate. A logistic model will be used to assess the effect of state of residency, adjusting for other covariates such as gender, age, race, etc. Will employ inverse probability of state weighting using the propensity score on all patients to estimate the difference in attitudes of marijuana use between the states. In the weighted sample, will also compute the standardized differences to evaluate the balance of baseline covariates between the two states. The propensity score model may be adjusted to further minimize some of the residual difference in the distribution of the baseline covariates between the two states.

Secondary outcomes

  1. Participants' belief in the usefulness of medical marijuana between those who are residents of Texas versus Arizona

    Time frame: Up to 1 year

    The proportion of patients with positive belief will be reported with a 95% confidence interval. Fisher's exact test will be applied to compare the proportion between residents of two states.

  2. Perception of medical marijuana

    Time frame: Up to 1 year

    Will evaluate the association of demographical, physical, and psychosocial characteristics of patients and their perception of medical marijuana. In order to address this objective, all the specified characteristics will be summarized by descriptive statistics based on patients' perception of medical marijuana (positive or negative attitude); chi-square (or Fisher's exact) test and Wilcoxon rank sum test may be applied to test the associations for categorical and continuous variables, respectively. Logistic regression model may be utilized to evaluate the association of patients' characteristics with their perception of medical marijuana. Summarized reports of all other questions regarding the preference of patients for treatment of pain, anxiety and depression between medical marijuana versus opioids, anti-anxiety, anti-depressant medications, as well as the perception of impact of media on patient's preference in the Marijuana Survey for Patients will be provided.

Sponsors and collaborators

Lead sponsor

M.D. Anderson Cancer Center

Other

Collaborators

  • National Cancer Institute (NCI)

Registry information

Official study title

A Comparison of the Attitudes About Legalization of Marijuana Use for Medical Purposes by Cancer Patients in Two Cancer Centers Located in a Legalized and a Non-Legalized State

Important dates

Study start
2017
Primary completion
2019
Study completion
2019
First posted
Dec 4, 2017
Registry last updated
Aug 30, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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