Use of Xtampza ER to Overcome Difficulties in Swallowing Opioid Pills

Phase 4

Terminated

Conditions: Opioid Use
Chronic Pain
Deglutition

Interventions: Drug: Xtampza ER (oxycodone)

Registration Number: NCT03588806

Lead Sponsor: Ajay Wasan, MD, Msc

Brief Summary: This study will examine how the use of Xtampza ER, an opioid analgesic packaged in openable microsphere-containing capsules, affects swallowing satisfaction, pain, and physical and mental health outcomes in chronic pain patients.

Detailed Description: An important step in the evolution of pain care is more personalized medicine. One aspect of personalized medicine emphasizes that patients often have additional requirements for prescription medicines beyond just pain relief, including ease in taking medications and overall satisfaction with their care. Surveys indicate that 20% of adult patients either with or without pain have difficulty swallowing their medications, and up to 10% refuse to take a specific therapy because they cannot swallow the pills \[1-3\]. It is likely that this issue compromises the quantity, quality, and satisfaction with pain relief from oral opioids.

Xtampza ER is an opioid analgesic consisting of a microsphere-containing capsule that can be opened so the microspheres can be added to soft food. This drug is designed to overcome capsule-swallowing issues and therefore may be an important tool for personalized pain medicine care. This study will investigate the pharmaceutic delivery properties of Xtampza to determine whether it is an improved alternative to the pill-swallowing problems that are common with opioid drugs.

Recruitment & Eligibility

Status: TERMINATED

Sex: All

Target Recruitment: 11

Inclusion Criteria

Adult subjects must have noncancer chronic pain for at least six months on a daily basis,
Be prescribed opioids on a daily basis
Have an upper dose limit of daily opioids of 200 mg of morphine equivalents. This is because at doses greater than 200 mg daily, in the investigator's experience it is much more difficult to convert completely to another opioid compound within a week. Fentanyl and methadone users will not be specifically excluded unless their dosages fall outside this range.
Ages 21-70
Reported difficulty swallowing their opioid medication on the screening form at a level determined significant by the PI.
Having a mobile phone. A smart phone is not required to respond to the text messages.
Having Internet access to be able to respond to the emailed weekly surveys.
If sexually active and able to become pregnant, must agree to use an acceptable method of birth control (hormonal methods, barrier methods with spermicide, intrauterine device (IUD) or abstinence).
Only Pain Medicine Clinic patients may participate in this study

Exclusion Criteria

Inability to understand the surveys and complete them.
Pregnancy
High risk for opioid addiction and/or abuse behaviors
Any condition, physical or mental, that in the investigator's judgment precludes optimal participation in the study procedures. This includes any documented current history of liver disease, renal insufficiency, delirium, alcohol use disorder, breast-feeding mothers, acute or severe asthma, chronic obstructive pulmonary disease requiring home oxygen, GI obstruction, biliary tract disease, pancreatitis, cardiac arrhythmia, bladder or urethral obstruction, adrenal insufficiency, psychosis, or taking medications which are potent inhibitors of the CYP3A4 enzyme (such as protease inhibitors, macrolide antibiotics, or antifungals).
Demonstration of abusive alcohol behavior. For women, this is more than 3 drinks on any single day or more than 7 drinks per week. For men, more than 4 drinks on any single day or more than 14 drinks per week.
Currently taking fentanyl or methadone
Exhibiting the following contraindicated conditions: (1) significant respiratory depression (2) acute or severe bronchial asthma in an unmonitored setting or in the absence of resuscitative equipment (3) known or suspected gastrointestinal obstruction, including paralytic ileus (4) hypersensitivity (e.g. anaphylaxis) to oxycodone (5) patients with chronic pulmonary disease (6) elderly, cachet, or debilitated patients (7) patients with evidence of increased intracranial pressure, brain tumors, head injury, or impaired consciousness (8) patients with seizure disorders (9) pregnant and breastfeeding women, due to risks to the fetus/baby

Study & Design

Study Type: INTERVENTIONAL

Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Xtampza ER (oxycodone) Treatment	Xtampza ER (oxycodone)	Following baseline assessments, subjects will have their current opioid medication changed to Xtampza ER (oxycodone) for the duration of the study. A standard conversion table will be used to calculate the dose of Xtampza ER that is equivalent to the subject's current opioid medication dosage. Subjects will be converted to 75% of the calculated dose for the first 7-10 days and then to 100% of the calculated dose for the remaining 3 weeks of the study. The Xtampza ER dosage may be modified at the discretion of the PI to ensure the safety of the subject. As per manufacturer recommendations, subjects will be instructed to open the capsules, sprinkle the microspheres onto soft food such as pudding or applesauce, and then consume the food.

Primary Outcome Measures

Name	Time	Method
Effect of Xtampza ER Conversion on Pain Intensity in the Last 24 Hours	Measured at baseline and at the end of the 6-week study	Percent change in pain intensity (in the last 24 hours) from baseline to the end of the study averaged over the last 7 days before clinic visit 4 (week 6). Pain Intensity is measured on a 0-10 scale, with 0 meaning "no pain" and 10 meaning "the worst pain imaginable." As decreases in pain intensity are a sign of improvement, percent change in pain intensity is calculated as -(end of study - baseline)/baseline score.
Effect of Xtampza ER Conversion on Pain Intensity in the Last 7 Days	Measured at baseline and at the end of the 6-week study	Percent change in pain intensity (in the past 7 days) from baseline to the end of the study at clinic visit 4 (week 6). Pain Intensity is measured on a 0-10 scale, with 0 meaning "no pain" and 10 meaning "the worst pain imaginable." As decreases in pain intensity are a sign of improvement, percent change in pain intensity is calculated as -(end of study - baseline)/baseline score.

Secondary Outcome Measures

Name	Time	Method
Change in Pill Swallowing Difficulty Score	Measured at baseline and at the end of the 6-week study. Baseline covers current opioid medication, and week 6 covers Xtampza ER.	Pill swallowing difficulty will be measured via a 0-10 scale with 0 being "no trouble at all" and 10 being "the greatest difficulty possible." Responses will be summarized as change from baseline scores to the end of the study at clinic visit 4 (week 6).
Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Interference	Measured at baseline and at the end of the 6-week study	The Pain Interference questions (#25-28) from the PROMIS-29 Adult Profile v2.0. Questions are measured on a 5-point scale with 1 being "Not at all" and 5 being "Very much". Responses will be summed and converted to T-Scores using the Assessment Center PROMIS Scoring Service (www.assessmentcenter.net), which rescales the raw score to a standardized T-Score with a population mean of 50 and standard deviation of 10. Pain Interference T-Scores will be summarized as the change from baseline scores to the end of the study at clinic visit 4 (week 6).
Opioid Medication Satisfaction	Measured at baseline and at the end of the 6-week study. Recorded baseline for current opioid medication and in week 6 for Xtampza ER.	Opioid medication satisfaction will be measured via a 0-10 scale with 0 being "not satisfied at all" and 10 being "completely satisfied." Responses will be summarized as change from baseline score to the end of the study at clinic visit 4 (week 6).
PROMIS Depression, Anxiety, Satisfaction With Social Roles, and Sleep Disturbance	Measured at baseline and at the end of the 6-week study	The Depression (#9-12), Anxiety (#5-8), Satisfaction with Social Roles (#21-24), and Sleep Disturbance (#17-20) questions from the PROMIS-29 Adult Profile v2.0. Questions are measured on a 5-point scale with 1 being "Never" and 5 being "Always". Responses for each section will be summed and converted to T-Scores using the Assessment Center PROMIS Scoring Service (www.assessmentcenter.net), which rescales the raw score to a standardized T-Score with a population mean of 50 and standard deviation of 10. These T-Scores will be summarized as change from baseline scores to the end of the study at clinic visit 4 (week 6).
PROMIS Physical Function	Measured at baseline and at the end of the 6-week study	The Physical Function questions (#1-4) from the PROMIS-29 Adult Profile v2.0. Questions are measured on a 5-point scale with 5 being "Without any difficulty" and 1 being "Unable to do". Responses will be summed and converted to T-Scores using the Assessment Center PROMIS Scoring Service (www.assessmentcenter.net), which rescales the raw score to a standardized T-Score with a population mean of 50 and standard deviation of 10. Physical Function T-Scores will be summarized as change from baseline score to the end of the study at clinic visit 4 (week 6).
Patient Global Impression of Change (PGIC)	Recorded in week 6.	The subject's impression of the impact of the treatment on their pain and function will be measured with a 7-item scale (-3 = very much worse, -2 = much worse, -1 = minimally worse, 0 = no change, 1 = minimally improved, 2 = much improved, 3 = very much improved). Responses will be summarized as individual mean scores at clinic visit 4 (week 6).