Title

Pregabalin in Preventing Acute Pain Syndrome in Patients Receiving Paclitaxel
RC11C3, Pilot Placebo-controlled Evaluation of Pregabalin as a Means to Prevent the Paclitaxel-Associated Acute Pain Syndrome
  • Phase

    N/A
  • Study Type

    Interventional
  • Intervention/Treatment

    pregabalin ...
  • Study Participants

    46
This randomized pilot clinical trial studies pregabalin in preventing acute pain syndrome in patients receiving paclitaxel. Pregabalin may control the pain caused by cancer treatment.
PRIMARY OBJECTIVES: I. To obtain pilot data regarding the possible effect of pregabalin on pain related to paclitaxel-associated acute pain syndrome (P-APS). SECONDARY OBJECTIVES: I. To obtain pilot data regarding the possible effect of pregabalin on paclitaxel-induced peripheral neuropathy. II. To obtain pilot data regarding the possible relative toxicities related to pregabalin therapy in this study situation. TERTIARY OBJECTIVES: I. To characterize neurological testing abnormalities that might occur with the P-APS, and to evaluate neurological testing abnormalities during the period of the longer-term chemotherapy-induced peripheral neuropathy (CIPN). II. To determine the PRO incidence and characteristics of, and change in, P-APS and paclitaxel induced more chronic CIPN over several cycles. These data will serve to confirm the results obtained in our previous natural history study N08C1. OUTLINE: Patients are randomized to 1 of 2 treatment arms. ARM I: Patients receive pregabalin orally (PO) twice daily (BID), beginning on the first night of chemotherapy, for 12 weeks and then once daily (QD) for 1 week. ARM II: Patients receive placebo PO BID, beginning on the first night of chemotherapy, for 12 weeks and then QD for 1 week. After completion of study treatment, patients are followed up every 30 days for 6 months.
Study Started
Jan 31
2012
Primary Completion
Nov 30
2013
Study Completion
Apr 30
2016
Results Posted
Apr 06
2018
Last Update
Apr 06
2018

Drug pregabalin

Given PO

  • Other names: 3-Isobutyl GABA, CI-1008, Lyrica, PD-144723

Drug placebo

Given PO

  • Other names: PLCB

Other questionnaire administration

Ancillary studies

Arm I (pain therapy) Experimental

Patients receive pregabalin PO BID, beginning on the first night of chemotherapy, for 12 weeks and then QD for 1 week.

Arm II (placebo) Placebo Comparator

Patients receive placebo PO BID, beginning on the first night of chemotherapy, for 12 weeks and then QD for 1 week.

Criteria

Inclusion Criteria:

Age > or equal to 18 years
Ability to complete questionnaires by themselves or with assistance Paclitaxel at a dose of 80 mg/m^2 given, in the adjuvant setting, every week for a planned course of 12 weeks without any other concurrent therapy
Paclitaxel at a dose of 80 mg/m2 given, in the adjuvant (postoperative or neo-adjuvant) setting, every week for a planned course of 12 weeks without any other concurrent cytotoxic chemotherapy (trastuzumab and/or other antibody and/or small molecule treatment is allowed, except for PARP inhibitors).
Life expectancy > 6 months
Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1
Negative pregnancy test (serum or urine) done =< 7 days prior to registration, for women of childbearing potential only (per clinician discretion)

Exclusion Criteria:

Pregnant women
Nursing women
Men or women of childbearing potential who are unwilling to employ adequate contraception since this study involves agents that have known genotoxic, mutagenic and teratogenic effects
Previous diagnosis of diabetic or other peripheral neuropathy
Current, planned or previous use, within last 6 months, of gabapentin or pregabalin
History of allergic or other adverse reactions to gabapentin or pregabalin
Significant renal insufficiency with a history of a creatinine clearance (CrCL) < 30ml/min
Prior exposure to neurotoxic chemotherapy
Seizure history
Diagnosis of fibromyalgia
Previous exposure to paclitaxel

Summary

Arm I (Pregabalin)

Arm II (Placebo)

All Events

Event Type Organ System Event Term Arm I (Pregabalin) Arm II (Placebo)

Worst of the Pain Scores for the Week Following the First Cycle of Paclitaxel Administration, Paclitaxel-associated Acute Pain Syndrome (P-APS) Pain Score

Worst of the pain scores for the week following the first cycle of paclitaxel administration, as measured by a question on the daily post-paclitaxel questionnaire. Worst pain over the first 6 days following treatment initiation. Higher scores represent more pain (0: No aches or pains -10: Aches or pains as bad as can be).

Arm I (Pregabalin)

2.6
units on a scale (Mean)
Standard Deviation: 2.5

Arm II (Placebo)

3.2
units on a scale (Mean)
Standard Deviation: 3.0

Maximum of the Average Pain Scores (Item 3, Appendix IV) Over the Period From Treatment Initiation to Day 7 (for Cycle 1).

Maximum of average pain scores over 6 days following initiation of treatment. Average pain over the first 6 days following treatment initiation. Maximum of the average pain scores (item 3, appendix IV; "Please rate the same aches/pain by circling the ONE number that best describes your aches/pains on the AVERAGE in the last 24 hours.") over the period from treatment initiation to day 7 (for cycle 1). Higher scores represent more pain (0: No aches or pains -10: Aches or pains as bad as can be).

Arm I (Pregabalin)

2.6
units on a scale (Mean)
Standard Deviation: 2.2

Arm II (Placebo)

2.2
units on a scale (Mean)
Standard Deviation: 2.6

Area Under the Curve Per Assessment (aAUCpa) of Worst, Average and Least Pain (Items 1-3 Appendix IV) for the First Cycle of Treatment.

Average Area Under the Curve per assessment (aAUCpa) of worst, average, and least pain (items 1-3 app. IV; "Please rate any aches/pains that are NEW since your last dose of paclitaxel, and that you think might be related to your chemotherapy treatment by circling ONE number that best describes your aches/pains at its WORST in the last 24 hours.", "Please rate the same aches/pains by circling the ONE number that best describes your aches/pains at its LEAST in the last 24 hours.", "Please rate the same aches/pain by circling the ONE number that best describes your aches/pains on the AVERAGE in the last 24 hours.") for the first cycle of treatment. Scores are reported on a 0-100 scale, where 100=better outcome QOL. The aAUCpa is the average of each AUC between each sequential assessment from treatment-initiation to the day-6 assessment.

Arm I (Pregabalin)

Average pain over the past 24 hours

82.8
average(subscale value*assessment) (Mean)
Standard Deviation: 20.2

Least pain over the past 24 hours

82.6
average(subscale value*assessment) (Mean)
Standard Deviation: 23.0

Worst pain over the past 24 hours

80.7
average(subscale value*assessment) (Mean)
Standard Deviation: 22.3

Arm II (Placebo)

Average pain over the past 24 hours

86.8
average(subscale value*assessment) (Mean)
Standard Deviation: 19.7

Least pain over the past 24 hours

91.3
average(subscale value*assessment) (Mean)
Standard Deviation: 14.8

Worst pain over the past 24 hours

82.6
average(subscale value*assessment) (Mean)
Standard Deviation: 24.0

Percentage of Participants With Grade 3 or Higher Adverse Events Considered At Least Possibly Related to Treatment

The maximum grade for each type of toxicity will be recorded for each patient, and frequency tables will be reviewed to determine toxicity patterns within patient groups. In addition, we will review all adverse event data that is graded as 3, 4, or 5 and classified as either "unrelated" or "unlikely to be related" to study treatment in the event of an actual relationship developing. The overall toxicity rates (percentages) for grade 3 or higher adverse events considered at least possibly related to treatment are reported below.

Arm II (Placebo)

Arm I (Pregabalin)

2.2
percentage of patients

The Percentage of Patients Who Use Non-prescription Pain Medications

The percentage of patients who use non-prescription pain medications are reported by arm below.

Arm I (Pregabalin)

52.6
percentage of patients

Arm II (Placebo)

50.0
percentage of patients

The Percentage of Patients Taking Opioid Medications

The percentage of patients taking opioid medications are reported below by arm.

Arm I (Pregabalin)

15.8
percentage of patients

Arm II (Placebo)

18.2
percentage of patients

The Percentage of Patients Who Report the Development of New Aches/Pains That They Attribute to Paclitaxel

The percentage of patients who report the development of new aches/pains that they attribute to paclitaxel in the first week of chemotherapy are reported by arm below.

Arm I (Pregabalin)

23.5
percentage of patients

Arm II (Placebo)

59.1
percentage of patients

The Worst Pain Reported at the End of the Week for the Overall Week (Item 2 Appendix V)

The worst pain reported at the end of the week for the overall week ("New aches and pains at their worst over the past week") are reported below. This question was only supposed to be answered by patients who responded "yes" to the first question. Currently, all responses are included, regardless of whether the patient should've responded or not. The worst pain reported at the end of the week for the overall week (item 2 appendix V: "Please rate any aches/pains that you have by circling ONE number that best describes your aches/pains at its worst over the last week.") Higher scores represent more pain (0: No aches or pains -10: Aches or pains as bad as can be).

Arm I (Pregabalin)

2.4
units on a scale (Mean)
Standard Deviation: 2.1

Arm II (Placebo)

4.7
units on a scale (Mean)
Standard Deviation: 3.2

The Percentage of Patients Who Report, at Week's End, Using Non-prescription Pain Medications

The percentage of patients who report, at week's end, using non-prescription pain medications ("Have you used non-prescription meds like aspirin, Tylenol, Motrin, Ibuprofen, or Advil over the past week?") are reported by arm below. This question was only supposed to be answered by patients who responded "yes" to the first question. Currently, all responses are included, regardless of whether the patient should've responded or not.

Arm I (Pregabalin)

66.7
percentage of patients

Arm II (Placebo)

The Percentage of Patients Who Report, at Week's End, Using Opioids

The percentage of patients who report, at week's end, using opioids ("Have you used opioids like codeine, oxycodone, or morphine for this pain over the past week?") are reported by arm below. This question was only supposed to be answered by patients who responded "yes" to the first question. Currently, all responses are included, regardless of whether the patient should've responded or not.

Arm I (Pregabalin)

Arm II (Placebo)

26.7
percentage of patients

Area Under the Curve (AUC) of EORTC Sensory, Autonomic, and Motor Neuropathy Subscales

Average Area Under the Curve per assessment (aAUCpa) of EORTC Chemotherapy-Induced Peripheral Neurophathy Module (EORTC QLQ-CIPN20) Sensory, Autonomic, and Motor Neuropathy Subscales. The EORTC CIPN20 scoring algorithm was used for the sensory (items 31-36, 39, 40 and 48), motor (items 37, 38, 41-45, 49), and autonomic (items 46, 47, 50) subscale scores on a 0-100 scale, with higher scores represent fewer symptoms (better QOL). The aAUCpa for each subscale is calculated as the average of each AUC between each sequential assessment from treatment-initiation to the 6-month assessment. For example; for each patient and each subscale, the subscale values at treatment-initiation and assessment-1 are used to calculate an Area Under the Curve (AUC) for that assessment time-period. Then these AUCs for all available assessment time-periods up to 6-months are averaged to yield the aAUCpa per patient per subcale.

Arm I (Pregabalin)

Autonomic

88.4
average(subscale value*assessment) (Mean)
Standard Deviation: 17.6

Motor

92.0
average(subscale value*assessment) (Mean)
Standard Deviation: 11.0

Sensory

88.4
average(subscale value*assessment) (Mean)
Standard Deviation: 12.5

Arm II (Placebo)

Autonomic

88.6
average(subscale value*assessment) (Mean)
Standard Deviation: 15.8

Motor

90.2
average(subscale value*assessment) (Mean)
Standard Deviation: 10.7

Sensory

84.5
average(subscale value*assessment) (Mean)
Standard Deviation: 16.7

Total

41
Participants

Age, Continuous

53.7
years (Mean)
Standard Deviation: 13.5

Region of Enrollment

Sex: Female, Male

Overall Study

Arm I (Pregabalin)

Arm II (Placebo)

Drop/Withdrawal Reasons

Arm I (Pregabalin)

Arm II (Placebo)