Trial Outcomes & Findings for A Long-Term Study To Evaluate Safety And Efficacy Of Pregabalin In Patients With Fibromyalgia (NCT NCT00830128)

NCT ID: NCT00830128

Last Updated: 2021-01-25

Results Overview

Any untoward medical occurrence in a participant who received study drug was considered an adverse event (AE), without regard to possibility of causal relationship. Treatment-emergent adverse events: those which occurred or worsened after baseline. An AE resulting in any of the following outcomes, was considered to be a serious adverse event: death; lifethreatening; initial or prolonged inpatient hospitalization; persistent or significant disability/incapacity; congenital anomaly/birth defect.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

106 participants

Primary outcome timeframe

Up to 53 weeks

Results posted on

2021-01-25

Participant Flow

Participants received the study drug in the precedent study A0081208 (NCT00830167).

Participant milestones

Participant milestones
Measure
Pregabalin
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Overall Study
STARTED
106
Overall Study
COMPLETED
87
Overall Study
NOT COMPLETED
19

Reasons for withdrawal

Reasons for withdrawal
Measure
Pregabalin
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Overall Study
Adverse Event
5
Overall Study
Lack of Efficacy
7
Overall Study
Protocol Violation
1
Overall Study
Withdrawal by Subject
2
Overall Study
Family obligation
1
Overall Study
Relocation
1
Overall Study
Work obligation
1
Overall Study
Operating a vehicle
1

Baseline Characteristics

A Long-Term Study To Evaluate Safety And Efficacy Of Pregabalin In Patients With Fibromyalgia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Age, Customized
<18 years
0 Participants
n=99 Participants
Age, Customized
Between 18 and 44 years
47 Participants
n=99 Participants
Age, Customized
Between 45 and 64 years
49 Participants
n=99 Participants
Age, Customized
>= 65 years
10 Participants
n=99 Participants
Sex: Female, Male
Female
89 Participants
n=99 Participants
Sex: Female, Male
Male
17 Participants
n=99 Participants

PRIMARY outcome

Timeframe: Up to 53 weeks

Population: All participants who received at least 1 dose of the study medication.

Any untoward medical occurrence in a participant who received study drug was considered an adverse event (AE), without regard to possibility of causal relationship. Treatment-emergent adverse events: those which occurred or worsened after baseline. An AE resulting in any of the following outcomes, was considered to be a serious adverse event: death; lifethreatening; initial or prolonged inpatient hospitalization; persistent or significant disability/incapacity; congenital anomaly/birth defect.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
All-causality adverse events (AEs)
102 Participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
All-causality SAEs
3 Participants

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who have taken at least 1 dose of the study medication, regardless of compliance with the study medication, and have at least 1 postbaseline efficacy assessment.

The pain VAS is a horizontal line; 100 mm in length, self-administered by the patient to rate pain from 0 (no pain) to 100 (worst possible pain). The score indicates the pain intensity during the past 1 week before a visit. Change = mean scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Pain Visual Analog Scale (Pain VAS) Score at Endpoint
-13.1 mm
Standard Deviation 25.3

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

MOS: patient rated questionnaire to assess sleep quality and quantity. Consists of 9-item overall sleep problems index (length of time to fall asleep, how many hours of sleep each night during past 4 weeks); The MOS Sleep Disturbance subscales rated 1 (all the time) to 6 (none of the time). Scores are transformed (actual raw score minus lowest possible score) divided by possible raw score range multiplied by 100; total score range = 0 to 100. A higher score means greater sleep disturbance. Change = mean scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Medical Outcomes Study (MOS) Sleep Scale - Sleep Disturbance at Endpoint
-9.6 Units on a scale
Standard Deviation 23.3

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

MOS: patient rated questionnaire to assess sleep quality and quantity. Consists of 9-item overall sleep problems index (length of time to fall asleep, how many hours of sleep each night during past 4 weeks); The MOS Snoring subscales rated 1 (all the time) to 6 (none of the time). Scores are transformed (actual raw score minus lowest possible score) divided by possible raw score range multiplied by 100; total score range = 0 to 100. A higher score means worse symptoms. Change = mean scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Medical Outcomes Study (MOS) Sleep Scale - Snoring at Endpoint
1.9 Units on a scale
Standard Deviation 22.3

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

MOS: patient rated questionnaire to assess sleep quality and quantity. Consists of 9-item overall sleep problems index (length of time to fall asleep, how many hours of sleep each night during past 4 weeks); The MOS Awaken Short of Breath or With a Headache subscales rated 1 (all the time) to 6 (none of the time). Scores are transformed (actual raw score minus lowest possible score) divided by possible raw score range multiplied by 100; total score range = 0 to 100. A higher score means worse symptoms. Change = mean scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Medical Outcomes Study (MOS) Sleep Scale - Awaken Short of Breath or With a Headache at Endpoint
-3.0 Units on a scale
Standard Deviation 23.1

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

MOS: patient rated questionnaire to assess sleep quality and quantity. Consists of 9-item overall sleep problems index (length of time to fall asleep, how many hours of sleep each night during past 4 weeks); The MOS Sleep Adequacy subscales rated 1 (all the time) to 6 (none of the time). Scores are transformed (actual raw score minus lowest possible score) divided by possible raw score range multiplied by 100; total score range = 0 to 100. A higher score means greater sleep adequacy. Change = mean scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Medical Outcomes Study (MOS) Sleep Scale - Sleep Adequacy at Endpoint
4.2 Units on a scale
Standard Deviation 21.3

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

MOS: patient rated questionnaire to assess sleep quality and quantity. Consists of 9-item overall sleep problems index (length of time to fall asleep, how many hours of sleep each night during past 4 weeks); The MOS Quantity of Sleep subscales rated 0 to 24 (number of hours slept). A higher score means greater quantity of sleep. Change = mean scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Medical Outcomes Study (MOS) Sleep Scale - Quantity of Sleep at Endpoint
0.3 hours
Standard Deviation 1.2

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

MOS: patient rated questionnaire to assess sleep quality and quantity. Consists of 9-item overall sleep problems index (length of time to fall asleep, how many hours of sleep each night during past 4 weeks); The MOS Somnolence subscales rated 1 (all the time) to 6 (none of the time). Scores are transformed (actual raw score minus lowest possible score) divided by possible raw score range multiplied by 100; total score range = 0 to 100. A higher score means worse symptoms. Change = mean scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Medical Outcomes Study (MOS) Sleep Scale - Somnolence at Endpoint
7.2 Units on a scale
Standard Deviation 24.0

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

MOS: patient rated questionnaire to assess sleep quality and quantity. Consists of 9-item overall sleep problems index (length of time to fall asleep, how many hours of sleep each night during past 4 weeks); The MOS Overall Sleep Problems Index rated 1 (all the time) to 6 (none of the time). Scores are transformed (actual raw score minus lowest possible score) divided by possible raw score range multiplied by 100; total score range = 0 to 100. A higher score means worse symptoms. Change = mean scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Medical Outcomes Study (MOS) Sleep Scale - Overall Sleep Problems Index at Endpoint
-3.7 Units on a scale
Standard Deviation 15.7

SECONDARY outcome

Timeframe: Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

MOS-Sleep is a patient-rated questionnaire to assess sleep quality and quantity. Optimal sleep component is derived from Sleep Quantity average hours of sleep each night during the past 4 weeks. Number of participants with response = YES if sleep quantity is 7 or 8 hours per night or response = NO if sleep quantity is \< 7 hours per night.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Medical Outcomes Study (MOS) Sleep Scale - Optimal Sleep at Endpoint
Yes
26 Paticipants
Medical Outcomes Study (MOS) Sleep Scale - Optimal Sleep at Endpoint
No
80 Paticipants

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

FIQ is a 20-item patient-reported outcome instrument designed to assess health status, progress, and outcomes in patients with fibromyalgia (10 subscales; 11 questions). Scores range from 0 to 100 with higher scores indicating more impairment. Change = mean FIQ scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Total Scores at Endpoint
-4.9 Units on a scale
Standard Deviation 17.2

SECONDARY outcome

Timeframe: Baseline, Week 52 or Study Discontinuation

Population: All participants who received at least 1 dose of the study medication, regardless of compliance with the study medication, and had at least 1 postbaseline efficacy assessment.

FIQ is a 20-item patient-reported outcome instrument designed to assess health status, progress, and outcomes in patients with fibromyalgia (10 subscales; 11 questions). Scores range from 0 to 100 with higher scores indicating more impairment. Change = mean FIQ scores at observation minus mean scores at baseline.

Outcome measures

Outcome measures
Measure
Pregabalin
n=106 Participants
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Physical Functioning
-0.2 Units on a scale
Standard Deviation 2.0
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Feel Good
-0.4 Units on a scale
Standard Deviation 2.7
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Work Missed
-0.5 Units on a scale
Standard Deviation 2.8
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Difficulty Working
-0.7 Units on a scale
Standard Deviation 2.6
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Pain
-1.0 Units on a scale
Standard Deviation 2.3
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Fatigue
-0.3 Units on a scale
Standard Deviation 1.9
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Morning Tiredness
-0.6 Units on a scale
Standard Deviation 2.2
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Stiffness
-0.7 Units on a scale
Standard Deviation 2.5
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Anoxiouness
-0.3 Units on a scale
Standard Deviation 2.6
Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) - Subscale Score at Endpoint
Depression
-0.2 Units on a scale
Standard Deviation 2.6

Adverse Events

Pregabalin

Serious events: 3 serious events
Other events: 92 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Pregabalin
n=106 participants at risk
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Infections and infestations
Tuberculosis
0.94%
1/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Injury, poisoning and procedural complications
Crush Injury
0.94%
1/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Compartment Syndrome
0.94%
1/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Neuropathy Peripheral
0.94%
1/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Nasal Septum Deviation
0.94%
1/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.

Other adverse events

Other adverse events
Measure
Pregabalin
n=106 participants at risk
Pregabalin treatment was started at 150 mg/day in Week 0 and escalated to 300 mg/day at Week 1. After that, participants could receive a maximum dose of 450 mg/day (225 mg, twice daily) for 52 weeks. During the term of the study, the dosage was to be adjusted (dose escalation/decrease), taking safety and efficacy with respect to pain into account.
Gastrointestinal disorders
Abdominal pain upper
7.5%
8/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Gastrointestinal disorders
Constipation
21.7%
23/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Gastrointestinal disorders
Nausea
6.6%
7/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
General disorders
Oedema peripheral
8.5%
9/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Infections and infestations
Nasopharyngitis
31.1%
33/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Injury, poisoning and procedural complications
Fall
5.7%
6/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Investigations
Weight increased
19.8%
21/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Back pain
5.7%
6/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Fibromyalgia
8.5%
9/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Osteoarthritis
7.5%
8/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Dizziness
26.4%
28/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Headache
11.3%
12/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Somnolence
29.2%
31/106
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER