Trial Outcomes & Findings for Study of Gralise to Treat Fibromyalgia Patients (NCT NCT02052414)

NCT ID: NCT02052414

Last Updated: 2016-10-19

Results Overview

Fibromyalgia pain experienced by study subjects will be captured using NPRS at baseline visit, at each follow visits that are scheduled to occur every 4 weeks over 12 weeks of treatment period, and at the end of treatment visit that will occur 3 weeks after treatment period (12 weeks treatment period + 3 weeks = 15 weeks). Any difference in NPRS scores between baseline and any subsequent visits will indicate the magnitude of pain relief as reflected in digital scale of 0-10 (0=no pain, 10=worst pain imaginable).

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

34 participants

Primary outcome timeframe

15 weeks

Results posted on

2016-10-19

Participant Flow

Participant milestones

Participant milestones
Measure
Gralise (Gabapentin ER)
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Overall Study
STARTED
34
Overall Study
COMPLETED
17
Overall Study
NOT COMPLETED
17

Reasons for withdrawal

Reasons for withdrawal
Measure
Gralise (Gabapentin ER)
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Overall Study
Adverse Event
12
Overall Study
Lack of Efficacy
2
Overall Study
Withdrawal by Subject
3

Baseline Characteristics

Study of Gralise to Treat Fibromyalgia Patients

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Gralise (Gabapentin ER)
n=34 Participants
This is an open label trial to evaluate the efficacy of Gralise against fibromyalgia pain. If subject is taking gabapentinoids at the time of enrollment, subjects will be required to wash off the medication; otherwise they can start the starter pack for Gralise, and will eventually up titrated to treatment dose of 1800mg with evening meals per day. Subjects will be followed every 4 weeks for total of 12 weeks. At the end of 12 weeks, subjects will be wash off the Gralise over 2 weeks, and will have a final end of treatment visit at week 15. Subjects will be asked to rate their pain on numeric pain rating system (NPRS) as primary outcome measure. Subjects will be asked to assess Fibromyalgia Impact Questionnaire (FIQ), Medical Outcome Study (MOS) Sleep questionnaire, and Patient Global Impression of Change (PGIC) as secondary outcome measures. At each follow up visits, occurrence of adverse events, and changes to concomitant medications were evaluated and recorded.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
28 Participants
n=5 Participants
Age, Categorical
>=65 years
6 Participants
n=5 Participants
Age, Continuous
55.25 years
STANDARD_DEVIATION 10.15 • n=5 Participants
Sex: Female, Male
Female
33 Participants
n=5 Participants
Sex: Female, Male
Male
1 Participants
n=5 Participants
Region of Enrollment
United States
34 participants
n=5 Participants
Age of Fibromyalgia Diagnosis
6.96 years
n=5 Participants
Number of active medications
1.3 medications
n=5 Participants
Number of past medications
1.6 medications
n=5 Participants
Number of co-morbid conditions
5.3 co-morbid conditions present
n=5 Participants
Gabapentinoid (Gabapentin/ pregabalin) Naive
Gabapentinoid Naive
8 participants
n=5 Participants
Gabapentinoid (Gabapentin/ pregabalin) Naive
Non-Gabapentinoid naive
26 participants
n=5 Participants

PRIMARY outcome

Timeframe: 15 weeks

Population: All subjects had diagnosis of fibromyalgia and met the inclusion and exclusion criteria.

Fibromyalgia pain experienced by study subjects will be captured using NPRS at baseline visit, at each follow visits that are scheduled to occur every 4 weeks over 12 weeks of treatment period, and at the end of treatment visit that will occur 3 weeks after treatment period (12 weeks treatment period + 3 weeks = 15 weeks). Any difference in NPRS scores between baseline and any subsequent visits will indicate the magnitude of pain relief as reflected in digital scale of 0-10 (0=no pain, 10=worst pain imaginable).

Outcome measures

Outcome measures
Measure
Gralise (Gabapentin ER)
n=31 Participants
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Numeric Pain Rating System (NPRS)
NPRS Baseline (Visit 1)
7.29 units on a scale
Standard Deviation 1.51
Numeric Pain Rating System (NPRS)
NPRS on Week 4 (Visit 2)
4.72 units on a scale
Standard Deviation 2.44
Numeric Pain Rating System (NPRS)
NPRS on week 8 (Visit 3)
3.95 units on a scale
Standard Deviation 2.18
Numeric Pain Rating System (NPRS)
NPRS on Week 12 (Visit 4)
3.83 units on a scale
Standard Deviation 2.05
Numeric Pain Rating System (NPRS)
NPRS on week 15 (Visit 5)
6.94 units on a scale
Standard Deviation 2.08

SECONDARY outcome

Timeframe: 15 weeks

Medical Outcomes Study (MOS) sleep questionnaires to assess how Fibromyalgia impacts patients' sleep in various areas. Specifically, Data reported below measured number of hours subjects spent per night sleeping. MOS sleep questionnaires were assessed at each follow up visits. (visits 1, 2, 3, 4, and 5).

Outcome measures

Outcome measures
Measure
Gralise (Gabapentin ER)
n=31 Participants
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Medical Outcome Study (MOS) Sleep Questionnaires
Sleep quantity week 15
6.23 Hours
Standard Error 1.71
Medical Outcome Study (MOS) Sleep Questionnaires
Sleep Quantity Baseline
5.86 Hours
Standard Error 1.65
Medical Outcome Study (MOS) Sleep Questionnaires
Sleep Quantity week 4
7.17 Hours
Standard Error 1.62
Medical Outcome Study (MOS) Sleep Questionnaires
Sleep quantity week 8
6.81 Hours
Standard Error 1.81
Medical Outcome Study (MOS) Sleep Questionnaires
Sleep quantity week 12
7.04 Hours
Standard Error 0.72

SECONDARY outcome

Timeframe: 15 Weeks

Population: Subject who experienced pain, acute delirium, symptoms related to adhesions due to prior surgical procedures, extremity swelling, and possible drug interactions discontinued medications. Other reported side effects dissipated after subjects reached therapeutic dose of 1800mg of study medication taken at bedtime.

Side / adverse effects were assessed at each follow up visits and resulted are as follows.

Outcome measures

Outcome measures
Measure
Gralise (Gabapentin ER)
n=31 Participants
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Self Reported Side Effects.
Extremity Swelling
2 participants
Self Reported Side Effects.
Weight Gain
2 participants
Self Reported Side Effects.
Drowsy
8 participants
Self Reported Side Effects.
Dizzy
3 participants
Self Reported Side Effects.
Irritability
3 participants
Self Reported Side Effects.
Dry Eyes
2 participants
Self Reported Side Effects.
Pain
1 participants
Self Reported Side Effects.
Mood Changes
2 participants
Self Reported Side Effects.
Difficulty Concentrating
2 participants
Self Reported Side Effects.
Dry Mouth
1 participants
Self Reported Side Effects.
Suspected Drug interaction
1 participants
Self Reported Side Effects.
Acute Delerium
1 participants
Self Reported Side Effects.
Adhesion
1 participants
Self Reported Side Effects.
None
12 participants

SECONDARY outcome

Timeframe: 15 weeks.

Population: FM patients who took study medication.

The Fibromyalgia Impact Questionnaire (FIQ) is an instrument designed to quantitate the overall impact of fibromyalgia over many dimensions (e.g. function, pain level, fatigue, sleep disturbance, psychological distress etc.). It is scored from 0 to 100 with the latter number being the worst case. The average score for patients seen in tertiary care settings is about 50. The FIQ is widely used to assess change in fibromyalgia status.

Outcome measures

Outcome measures
Measure
Gralise (Gabapentin ER)
n=31 Participants
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Fibromyalgia Impact Questionnaire (FIQ)
FIQ Week 4
41.82 units on a scale
Standard Deviation 19.57
Fibromyalgia Impact Questionnaire (FIQ)
FIQ Baseline
71.04 units on a scale
Standard Deviation 12.84
Fibromyalgia Impact Questionnaire (FIQ)
FIQ Week 8
40.79 units on a scale
Standard Deviation 20.41
Fibromyalgia Impact Questionnaire (FIQ)
FIQ Week 12
39.27 units on a scale
Standard Deviation 21.37
Fibromyalgia Impact Questionnaire (FIQ)
FIQ Week 15
61.86 units on a scale
Standard Deviation 18.67

OTHER_PRE_SPECIFIED outcome

Timeframe: 15 Weeks.

Patient Global impression of Change (PGIC) is an outcome commonly used measure of the efficacy of treatments. PGIC is a 7 point scale that requires the subjects to assess how much the patient's illness has improved or worsened relative to a baseline state at the beginning of the intervention. and rated as: 1, very much improved; 2, much improved; 3, minimally improved; 4, no change; 5, minimally worse; 6, much worse; or 7, very much worse.

Outcome measures

Outcome measures
Measure
Gralise (Gabapentin ER)
n=31 Participants
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Patient Global Impression of Change (PGIC)
PGIC After 4 weeks
4.96 units on a scale
Standard Deviation 1.61
Patient Global Impression of Change (PGIC)
PGIC After 8 weeks
5.40 units on a scale
Standard Deviation 1.31
Patient Global Impression of Change (PGIC)
PGIC After 12 weeks
5.37 units on a scale
Standard Deviation 1.54
Patient Global Impression of Change (PGIC)
PGIC After 15 weeks
4.44 units on a scale
Standard Deviation 1.97

Adverse Events

Gralise (Gabapentin ER)

Serious events: 2 serious events
Other events: 10 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Gralise (Gabapentin ER)
n=31 participants at risk
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Gastrointestinal disorders
Small bowel adhesion
3.2%
1/31 • Number of events 1 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Nervous system disorders
Acute Delirium
3.2%
1/31 • Number of events 1 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.

Other adverse events

Other adverse events
Measure
Gralise (Gabapentin ER)
n=31 participants at risk
An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial. All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day. Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit. Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.
Metabolism and nutrition disorders
Extremity swelling
6.5%
2/31 • Number of events 2 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Metabolism and nutrition disorders
Weight Gain
6.5%
2/31 • Number of events 2 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Nervous system disorders
Drowsiness
25.8%
8/31 • Number of events 8 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Ear and labyrinth disorders
Dizzines
9.7%
3/31 • Number of events 3 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Psychiatric disorders
irritability
9.7%
3/31 • Number of events 3 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Eye disorders
dry eyes
6.5%
2/31 • Number of events 2 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Musculoskeletal and connective tissue disorders
pain
3.2%
1/31 • Number of events 1 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Psychiatric disorders
Mood changes
6.5%
2/31 • Number of events 2 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Nervous system disorders
Difficulty Concentrating
6.5%
2/31 • Number of events 2 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Gastrointestinal disorders
drymouth
3.2%
1/31 • Number of events 1 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.
Metabolism and nutrition disorders
drug interaction
3.2%
1/31 • Number of events 1 • Adverse events data were collected at baseline (visit 1), week 4 (visit 2), week 8 (visit 3), week 12 (visit 4), and week 15 (visit 5). If subject required unscheduled visit, AE were collected as part of the visit procedure.

Additional Information

James M. North MD

The Center for Clinical Research

Phone: 3367656181

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place