Baclofen-Amitriptyline Hydrochloride-Ketamine Gel in Treating Peripheral Neuropathy Caused by Chemotherapy in Patients With Cancer

Brief Summary

RATIONALE: Baclofen-amitriptyline-ketamine (BAK) gel may lessen peripheral neuropathy caused by chemotherapy. It is not yet known whether BAK gel is more effective than a placebo in treating peripheral neuropathy caused by chemotherapy . PURPOSE: This randomized phase III trial is studying BAK gel to see how well it works compared with a placebo in treating peripheral neuropathy caused by chemotherapy in patients with cancer.

Intervention / Treatment

  • baclofen/amitriptyline/ketamine gel (DRUG)
    Applied topically
  • Placebo (OTHER)
    Applied topically

Condition or Disease

  • Chronic Myeloproliferative Disorders
  • Leukemia
  • Lymphoma
  • Lymphoproliferative Disorder
  • Multiple Myeloma and Plasma Cell Neoplasm
  • Myelodysplastic Syndromes
  • Myelodysplastic/Myeloproliferative Neoplasms
  • Neurotoxicity
  • Pain
  • Unspecified Adult Solid Tumor, Protocol Specific

Phase

  • Phase 3
  • Study Design

    Study type: INTERVENTIONAL
    Status: Completed
    Study results: No Results Available
    Age: 18 Years and older   (Adult, Older Adult)
    Enrollment: 208 (ACTUAL)
    Funded by: Other|NIH
    Allocation: Randomized
    Primary Purpose: Supportive Care

    Masking

    DOUBLE:
    • Participant
    • Investigator

    Clinical Trial Dates

    Start date: Feb 01, 2008
    Primary Completion: Apr 01, 2009 ACTUAL
    Completion Date: Jan 01, 2010 ACTUAL
    Study First Posted: Aug 15, 2007 ESTIMATED
    Results First Posted: Aug 24, 2017 ACTUAL
    Last Updated: Jul 25, 2017

    Sponsors / Collaborators

    Lead sponsor is responsible party
    Responsible Party: N/A

    Location

    OBJECTIVES Primary

    * Compare the effectiveness of baclofen-amitriptyline hydrochloride-ketamine (BAK) gel versus placebo, in terms of improving sensory neuropathy, in cancer patients with chemotherapy-induced peripheral neuropathy\> Secondary\>
    * Compare motor and autonomic symptoms and functioning, mood states, pain, and peripheral neuropathy in these patients.
    * Assess the adverse event profile of topical BAK gel.
    * Explore whether topical BAK gel is absorbed systemically. OUTLINE: Patients are stratified according to neurotoxic chemotherapy (active vs non-active), current use of opioids or oral pain medications (yes vs no), pain rating (4-7 vs 8-10), and prior ineffective pharmacologic treatment for peripheral neuropathy (yes vs no). Patients are randomized to 1 of 2 treatment arms.
    * Arm I: Patients apply 1 spoonful of baclofen-amitriptyline hydrochloride-ketamine gel topically to each area of pain, numbness, and/or tingling on the feet and/or hands twice daily for 4 weeks.
    * Arm II: Patients apply 1 spoonful of placebo gel topically to each area of pain, numbness, and/or tingling on the feet and/or hands twice daily for 4 weeks.

    Some patients in both arms may choose to continue on the active gel or, if on placebo, begin the active gel for an additional 8 weeks off study. Patients complete health, pain, mood, and quality of life questionnaires at baseline and periodically during study. Patients also record adverse symptoms weekly in a Symptom Experience Diary.

    Participant Groups

    • Patients apply 1 spoonful of baclofen-amitriptyline hydrochloride-ketamine gel\> topically to each\> area of pain,\> numbness,\> and/or tingling\> on the\> feet and/or hands twice daily\> for\> 4 weeks.

    • Patients apply 1 spoonful of placebo gel topically to each area of pain, numbness, and/or tingling on the feet and/or hands twice daily for 4 weeks.

    Eligibility Criteria

    Sex: All
    Minimum Age: 18
    Age Groups: Adult / Older Adult
    Healthy Volunteers: Yes

    DISEASE CHARACTERISTICS:\>

    * Diagnosis of cancer\>
    * Received or currently receiving neurotoxic chemotherapy including, but not limited to, taxanes (e.g., paclitaxel or docetaxel); platinum-based compounds (e.g., carboplatin, cisplatin, or oxaliplatin); vinca alkaloids (e.g., vincristine or vinblastine); or other neurotoxic chemotherapy agents (e.g., bortezomib, lenalidomide, or thalidomide)\>
    * Must have pain or symptoms of peripheral neuropathy attributable to chemotherapy for ≥ 1 month\>

    * Neuropathy is limited to either hands and/or feet where gel can be applied\>
    * Neuropathic pain score of ≥ 4 out of 10 on the numbness/tingling/pain numeric analogue scale\>
    * No pre-existing or history of peripheral neuropathy due to any cause other than chemotherapy (e.g., diabetes, alcohol, toxin, heredity)\> PATIENT CHARACTERISTICS:\>
    * ECOG performance status 0-2\>
    * Life expectancy ≥ 4 months\>
    * Creatinine ≤ 1.5 times upper limit of normal\>
    * Not pregnant or nursing\>
    * No ability to bear children defined by 1 of the criteria:\>

    * Menopausal (12 months and no menstrual period if natural menopause)\>
    * Underwent a hysterectomy and/or oophorectomy\>
    * Permanent surgical sterilization (tubal ligation)\>
    * Fertile patients must use effective contraception\>
    * Able to complete questionnaires independently or with assistance\>
    * Able to sign informed consent and understand the nature of a placebo-controlled trial\>
    * No history of an allergic reaction to baclofen, amitriptyline hydrochloride, and/or ketamine\>
    * No diagnosis of any New York Heart Association class I-IV congestive heart failure\>
    * No diagnosis of coronary artery disease including, but not limited to, myocardial infarction, within the past 5 years\>
    * No other medical condition that, in the opinion of the treating physician or allied health professional, would make this clinical trial unreasonably hazardous for the patient\>
    * No skin abnormalities at the intended application sites (hands and feet) of study gel (i.e., skin breakdown)\> PRIOR CONCURRENT THERAPY:\>
    * See Disease Characteristics\>
    * More than 30 days since prior anticonvulsants, tricyclic antidepressants, monoamine oxidase inhibitor, or other neuropathic pain medication (e.g., carbamazepine, phenytoin, valproic acid, gabapentin, lamotrigine, topical lidocaine patch or gel, capsaicin cream, or amifostine)\>

    - Patients treated with any of these agents for peripheral neuropathy for ≤ 1 week during the past 30 days are eligible provided they are no longer taking the agent\>
    * More than 5 years since prior percutaneous transluminal coronary angioplasty or coronary artery bypass graft\>

    - Prior heart valve replacement surgery allowed provided patient has fully recovered from the surgery\>
    * No concurrent use of study agents other than as specified in the trial\>

    Primary Outcomes
    • The scoring algorithm for the parent instrument, the EORTC QLQ-C30, was applied for linearly converting items and subscales of CIPN-20 to 0-100 scales so that a high score corresponds to better condition or less symptom. The primary analysis was the change in sensory neuropathy subscale of the CIPN-20 from baseline to week 4. The area under the curve (AUC) from baseline to week 4 was calculated for each patient's sensory neuropathy score. The average AUC for the placebo arm was compared to the average AUC for the topical amitriptyline HCl/ baclofen/ ketamine arm using a Wilcoxon rank sum test.

    Secondary Outcomes
    • The scoring algorithm for the parent instrument, the EORTC QLQ-C30, was applied for linearly converting items and subscales of CIPN-20 to 0-100 scales so that a high score corresponds to better condition or less symptom. The secondary analysis was to compare changes from baseline at 4 weeks for the motor neuropathy subscale of the CIPN-20. To analyze this endpoint, the area under the curve (AUC) from baseline to week 4 was calculated for each patient's motor neuropathy score. The average AUC for the placebo arm was compared to the average AUC for the topical amitriptyline HCl/ baclofen/ ketamine arm using a Wilcoxon rank sum test.

    • The scoring algorithm for the parent instrument, the EORTC QLQ-C30, was applied for linearly converting items and subscales of CIPN-20 to 0-100 scales so that a high score corresponds to better condition or less symptom. The secondary analysis was to compare changes from baseline at 4 weeks for the autonomic neuropathy subscale of the CIPN-20. To analyze this endpoint, the area under the curve (AUC) from baseline to week 4 was calculated for each patient's motor neuropathy score. The average AUC for the placebo arm was compared to the average AUC for the topical amitriptyline HCl/ baclofen/ ketamine arm using a Wilcoxon rank sum test.

    • Each mood scale (0 - 100, higher is better mood) will be analyzed as an endpoint along with the total mood disturbance score.

    • Pain severity, defined by the four items addressing worst, least, and average pain and pain right now as measured by the BPI will be analyzed identical to the primary endpoint. Additionally, total pain interference as measured by the BPI will be transformed onto a 0-100 ( higher is less pain) point scale. The area under the curve (AUC) from baseline to week 4 was calculated for each patient's score. The average AUC for the placebo arm and the topical amitriptyline HCl/ baclofen/ ketamine arm are reported.

    • The Peripheral Neuropathy Questionnaire was used to analyze this endpoint. Patient neuropathy symptoms were scored on a 0 - 100 scale (higher score represents less symptomatic). The area under the curve (AUC) from baseline to week 4 was calculated for each patient's score. The average AUC for the placebo arm and the topical amitriptyline HCl/ baclofen/ ketamine arm are reported.

    • Frequency and severity of adverse events reported by patients in weekly diary and evaluated through clinical assessment by NCI CTCAE v3.0. The number of patients reporting grade 3 or higher events are reported in this outcome measure. For a full list of all events, please refer to the Adverse Events section of this report.

    More Details

    NCT Number: NCT00516503
    Other IDs: NCCTG-N06CA
    Study URL: https://clinicaltrials.gov/study/NCT00516503
    Last updated: Sep 29, 2023