Phytocannabinoids for Reducing Chronic Chemotherapy-Induced Peripheral Neuropathy in Breast and Colon Cancer Survivors

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorCity of Hope Medical Center

About this trial

This phase II trials evaluates how well different types of phytocannabinoids (cannabidiol \[CBD\] versus tetrahydrocannabinol \[THC\] and CBD formulation \[THC:CBD\]) work to reduce chronic chemotherapy-induced peripheral neuropathy among breast and colon cancer survivors. Chemotherapy induced peripheral neuropathy is a set of symptoms that includes pain, tingling, numbness and motor weakness caused by certain types of chemotherapy treatment. Phytocannabinoids are compounds made by the cannabis plant, such as THC and CBD, that have been found to be an effective treatment for chronic pain. Phytocannabinoids may be effective in reducing chronic chemotherapy-induced peripheral neuropathy symptoms in patients treated for breast or colon cancer.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Documented informed consent of the participant and/or legally authorized representative.

Assent, when appropriate, will be obtained per institutional guidelines

Agreement to allow the use of archival tissue from diagnostic tumor biopsies

If unavailable, exceptions may be granted with study principal investigator (PI) approval

Disqualifiers

Current active treatment with chemotherapy, radiation or surgery in the past 3 months or planned treatment during this study protocol period. Note: Hormonal therapy is allowed

Treatment with any neuropathic agent including taxane, platinum, vinca alkaloid, or bortezomib chemotherapy within the past 6 months

Concurrent use of other alternative medicines such as medical cannabis, herbal agents and high dose vitamins and minerals

Liver cirrhosis Child-Pugh B or C

Trial design

Design model

Parallel

Treatments tested in this trial

  • Biospecimen Collection

    Procedure/Surgery

    Undergo urine sample collection

  • Cannabidiol

    Drug

    Given PO

  • Dronabinol

    Drug

    Given PO

  • Placebo Administration

    Drug

    Given PO

  • Survey Administration

    Other intervention

    Ancillary studies

Treatment groups

120 Participants
are divided into 3 treatment groups
Group A: Arm I (CBD)Experimental treatment 3 interventions
Group B: Arm II (THC:CBD)Experimental treatment 5 interventions
Group C: Arm III (placebo)Placebo comparator 3 interventions

Trial outcomes

Primary outcomes

1

Subjectively experienced symptoms of peripheral neuropathy

Assessed via Functional Assessment of Cancer Therapy/Gynecologic Oncology Group Neurotoxicity Subscale (FACT/GOG-Ntx). Will compare difference scores from the FACT/GOG-Ntx between all these groups using analysis of variance. A paired t-test will be utilized to compare scores between baseline and 8 and 12 weeks of treatment for each group separately.

Time frame
Up to 28 days after last dose of therapy

Secondary outcomes

1

Health-related quality of life

Assessed via Functional Assessment of Cancer Therapy-General. A paired T-test will be utilized to compare scores between baseline and 8 weeks of treatment. For comparisons between groups at four specific assessment points (baseline, week 4, week 8, and week 12), a repeated measures analysis of variance analysis will be performed.

Time frame
Up to 28 days after last dose of therapy
2

Neuropathic medication utilization

Neuropathic medication utilization data will initially be analyzed as a dichotomous variable (yes/no) for each medication. Comparisons between the baseline and after-treatment medication status will be analyzed using McNemar's test. Including all the time points in the analysis of any single medication will use Cochran's Q test.

Time frame
Up to 28 days after last dose of therapy
3

Pain medication utilization

Pain medication utilization data will initially be analyzed as a dichotomous variable (yes/no) for each medication. Comparisons between the baseline and after-treatment medication status will be analyzed using McNemar's test. Including all the time points in the analysis of any single medication will use Cochran's Q test.

Time frame
Up to 28 days after last dose of therapy
4

Incidence of adverse events

All adverse events will be graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 6.0. The severe adverse events (SAE) (grade ≥ 3) will be tabulated per treatment arm and the difference of SAE will be compared among groups using chi-square test.

Time frame
Up to 28 days after last dose of therapy

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

City of Hope Medical Center

Lead sponsor

National Cancer Institute (NCI)

Collaborator