Many people receiving chemotherapy experience nausea despite standard anti-nausea medications. Medical cannabis is commonly used to help manage nausea, but there is limited scientific evidence about its effectiveness when used alongside modern chemotherapy treatments. This study will evaluate whether medical cannabis can reduce nausea in adults receiving moderately or highly nausea-causing chemotherapy. Participants will be randomly assigned to start medical cannabis either immediately or after one chemotherapy cycle, allowing comparison of symptoms with and without cannabis use. All participants will continue their usual anti-nausea medications. The study will also examine effects on vomiting, appetite, pain, fatigue, sleep, mood, quality of life, and inflammation. Results from this pilot study will help determine the safety, feasibility, and potential benefits of medical cannabis for chemotherapy-related nausea and guide future larger clinical trials.
Many people receiving chemotherapy experience nausea, even when they are given standard anti-nausea medications. Vomiting is now often well controlled, but nausea, especially nausea that occurs one or more days after chemotherapy, remains a major problem. Nausea can interfere with daily activities, reduce appetite, worsen quality of life, and sometimes lead to dehydration or delays in cancer treatment. New approaches are needed to better manage chemotherapy-related nausea. Medical cannabis is commonly used by patients to help with nausea, appetite, sleep, pain, and other treatment-related symptoms. Although cannabis is legal for medical use in many U.S. states and cancer is a qualifying condition, there is limited scientific evidence about how well cannabis works for chemotherapy-related nausea when used alongside modern anti-nausea medications. More research is needed to understand its benefits, risks, and how it may best be used. The purpose of this study is to collect early (pilot) data on whether medical cannabis can reduce nausea in adults receiving moderately or highly nausea-causing chemotherapy. The study will also examine whether cannabis affects vomiting, appetite, fatigue, sleep, pain, nerve pain, mood, and quality of life. In addition, blood samples will be collected to explore whether cannabis is associated with changes in inflammation related to cancer treatment. About 50 adults with cancer who are receiving chemotherapy will take part in this study at the University of Rochester Medical Center. Participants must be 21 years of age or older, experiencing significant nausea despite standard anti-nausea medications, and receiving chemotherapy that commonly causes nausea. People with certain medical or psychiatric conditions, recent cannabis use, or lung disease will not be eligible for safety reasons. Participants will be randomly assigned to one of two groups. One group will begin using medical cannabis during their first study chemotherapy cycle, while the other group will continue usual care for one cycle and then begin using medical cannabis during the next cycle. This delayed-start approach allows each participant to be compared to their own experience before and after cannabis use. All participants will continue to receive their prescribed anti-nausea medications throughout the study. Medical cannabis will be obtained through a state-licensed dispensary and used primarily during the four days surrounding each chemotherapy treatment, when nausea is most likely to occur. Cannabis will be used with a standardized vaporization device to help ensure consistent dosing. Participants will keep daily diaries to record nausea, vomiting, cannabis use, and any side effects. They will also complete questionnaires about symptoms, mood, and quality of life. Blood samples will be collected once per chemotherapy cycle during routine lab visits. Possible risks include side effects of cannabis such as dizziness, anxiety, sleepiness, or difficulty concentrating, as well as minor risks from blood draws such as bruising or lightheadedness. Participants will be given safety instructions, including avoiding driving after cannabis use. There may or may not be direct benefit to participants, but the information gained may help improve nausea management for future cancer patients. This study will provide important early evidence about the safety, feasibility, and potential benefits of medical cannabis for chemotherapy-related nausea and related symptoms, and will help guide larger future clinical trials.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
NONE
Enrollment
50
Medical cannabis will be used as an adjunct to standard guideline-recommended antiemetic therapy for chemotherapy-related nausea. Participants will obtain state-certified medical cannabis products through a New York State-licensed dispensary and self-administer cannabis via vaporization using a standardized device. Dose limits and timing of use will be guided by the study protocol to promote consistency while allowing individualized use. Medical cannabis will be used during the acute and delayed nausea period, defined as Days 1 through 4 following chemotherapy administration. Participants randomized to the Immediate Use arm will initiate cannabis use during their first on-study chemotherapy cycle, whereas participants randomized to the Delayed Use arm will initiate cannabis use after completion of the first cycle. Cannabis use patterns, nausea and vomiting symptoms, adverse effects, and patient-reported outcomes will be recorded using participant-completed diaries and questionnaires.
University of Rochester Medical Center
Rochester, New York, United States
Average and Maximum Nausea Severity as Measured by the Nausea and Vomiting Diary
Average nausea severity will be measured using a participant completed nausea and vomiting diary. Nausea severity is rated on an 11 point numeric scale anchored by "Not at all nauseated" (0) and "Extremely nauseated" (10). Average nausea is calculated as the mean of up to 15 assessment points, including afternoon, evening, and night on Day 1 and morning, afternoon, evening, and night on Days 2 through 4. Higher scores indicate greater nausea severity. Scores will be set to missing if 11 or more of the 15 assessments are missing. Maximum nausea severity will be measured using a participant-completed nausea and vomiting diary. Nausea severity is rated on an 11-point numeric scale anchored by "Not at all nauseated" (0) and "Extremely nauseated" (10). Maximum nausea is defined as the highest nausea rating reported across the same 15 assessment points.
Time frame: Days 1-4 following chemotherapy administration during up to 3 on-study chemotherapy cycles (Day 1 defined as the day of chemotherapy administration; each chemotherapy cycle is 14-28 days, depending on regimen)
Number of Emesis Episodes Recorded in the Nausea and Vomiting Diary
Emesis episodes will be recorded daily by participants using the nausea and vomiting diary. The outcome is the total number of vomiting episodes recorded during the assessment period.
Time frame: Days 1-4 following chemotherapy administration during up to 3 on-study chemotherapy cycles (Day 1 defined as the day of chemotherapy administration; each chemotherapy cycle is 14-28 days, depending on regimen)
Complete Protection From Chemotherapy Induced Nausea and Vomiting
Complete protection is defined as no emesis, no use of additional rescue therapy, and no significant nausea defined as a nausea score of 2 or less on a 0 to 10 numeric rating scale. The outcome will be reported as the proportion of participants meeting these criteria.
Time frame: Days 1-4 following chemotherapy administration during up to 3 on-study chemotherapy cycles (Day 1 defined as the day of chemotherapy administration; each chemotherapy cycle is 14-28 days, depending on regimen)
Complete Control of Chemotherapy Induced Nausea and Vomiting
Complete control is defined as no emesis, no use of additional rescue therapy, and no nausea defined as a nausea score of 0 on a 0 to 10 numeric rating scale.
Time frame: Days 1-4 following chemotherapy administration during up to 3 on-study chemotherapy cycles (Day 1 defined as the day of chemotherapy administration; each chemotherapy cycle is 14-28 days, depending on regimen)
Complete Response to Chemotherapy Induced Nausea and Vomiting
Complete response is defined as no emesis and no use of additional rescue therapy. The outcome will be reported as the proportion of participants meeting these criteria.
Time frame: Days 1-4 following chemotherapy administration during up to 3 on-study chemotherapy cycles (Day 1 defined as the day of chemotherapy administration; each chemotherapy cycle is 14-28 days, depending on regimen)
Change in Appetite as Measured by the University of Rochester Cancer Center (URCC) Symptom Inventory
Appetite will be assessed using the URCC Symptom Inventory. Appetite is measured on an 11 point numeric scale anchored by "Not at all hungry" (0) and "Extremely hungry" (10). Higher scores indicate greater appetite.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Appetite Related Quality of Life as Measured by the Functional Assessment of Anorexia Cachexia Therapy Questionnaire
Appetite related quality of life will be measured using the Functional Assessment of Anorexia Cachexia Therapy questionnaire, a validated instrument designed to assess quality of life and anorexia or cachexia related concerns. Higher scores indicate better appetite related quality of life.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Anxiety Severity as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Anxiety Short Form
Anxiety severity will be measured using the PROMIS Anxiety Short Form. PROMIS T scores are standardized to a mean of 50 and a standard deviation of 10, with higher scores indicating greater anxiety severity.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Depressive Symptoms as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Depression Short Form
Depressive symptoms will be measured using the PROMIS Depression Short Form. PROMIS T scores are standardized to a mean of 50 and a standard deviation of 10, with higher scores indicating greater depressive symptom severity.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Fatigue as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Fatigue Short Form
Fatigue severity will be measured using the PROMIS Fatigue Short Form. PROMIS T scores are standardized to a mean of 50 and a standard deviation of 10, with higher scores indicating greater fatigue severity.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Pain Interference as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Interference Short Form
Pain interference will be measured using the PROMIS Pain Interference Short Form. PROMIS T scores are standardized to a mean of 50 and a standard deviation of 10, with higher scores indicating greater pain interference.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Physical Function as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Physical Function Short Form
Physical function will be measured using the PROMIS Physical Function Short Form. PROMIS T scores are standardized to a mean of 50 and a standard deviation of 10, with higher scores indicating better physical function.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Sleep Disturbance as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep Disturbance Short Form
Sleep disturbance will be measured using the PROMIS Sleep Disturbance Short Form. PROMIS T scores are standardized to a mean of 50 and a standard deviation of 10, with higher scores indicating greater sleep disturbance.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Ability to Participate in Social Roles and Activities as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Short Form
Ability to participate in social roles and activities will be measured using the PROMIS Ability to Participate in Social Roles and Activities Short Form. PROMIS T scores are standardized to a mean of 50 and a standard deviation of 10, with higher scores indicating better social participation.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Pain Intensity as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Intensity Item
Pain intensity will be measured using a single PROMIS pain intensity item rated on a numeric scale ranging from 0 no pain to 10 worst imaginable pain. Higher scores indicate greater pain intensity.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Cognitive Function as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Cognitive Function Short Form
Perceived cognitive function will be measured using the PROMIS Cognitive Function Short Form. PROMIS T scores are standardized with higher scores indicating better cognitive function.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Concerns About Death and Dying as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Health-Related Quality of Life in Neurological Disorders (HDQLIFE) Concern With Death and Dying Scale
Concerns related to death and dying will be measured using the PROMIS HDQLIFE Concern With Death and Dying Short Form. Higher scores indicate greater concern.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Health Related Quality of Life as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Preference Summary Score
Health related quality of life will be measured using the PROMIS Preference summary score, a preference based utility score derived from multiple PROMIS domains and calculated using the MultiAttribute Utility Theory method. Higher scores indicate better health related quality of life.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Peripheral Neuropathic Pain as Measured by the EORTC CIPN 20 Questionnaire
Peripheral neuropathic pain will be measured using the European Organisation for Research and Treatment of Cancer Chemotherapy Induced Peripheral Neuropathy 20 item questionnaire. Higher scores indicate greater neuropathic symptom severity.
Time frame: Baseline (within 7 days before chemotherapy) and Day 4 following chemotherapy during Cycles 1 and 3; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
Change in Psychological Distress as Measured by the NCCN Distress Thermometer
Psychological distress will be measured using the National Comprehensive Cancer Network Distress Thermometer, an 11 point scale ranging from 0 no distress to 10 extreme distress. Higher scores indicate greater distress.
Time frame: Baseline (within 7 days before chemotherapy) to Day 4 after chemotherapy during up to 3 cycles; post-cycle questionnaires completed on Day 4 or within 48 hours (Day 1 = chemotherapy; cycles 14-28 days).
Subjective Drug Effects as Measured by the Drug Effects Questionnaire
Subjective drug effects will be measured using the Drug Effects Questionnaire, which assesses perceived strength of substance effects and desirability of substance effects using numeric rating scales. Higher scores indicate stronger or more desirable subjective effects.
Time frame: Day 4 following chemotherapy during Cycle 3 only; questionnaire completed on Day 4 or within 48 hours thereafter (Day 1 defined as the day of chemotherapy administration; cycles are 14-28 days).
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.