ClinicalTrials.gg
CompletedNCT00256854Updated Mar 15, 2019Results posted

Converting From Ropinirole Immediate Release (IR) To Ropinirole Controlled-Release for RLS (Restless Legs Syndrome)

A Phase 3 interventional study of Ropinirole IR 1 mg and Ropinirole IR 2 mg in Restless Legs Syndrome and Restless Legs Syndrome (RLS), sponsored by GlaxoSmithKline. Completed at 30 sites in United States. Open to participants aged 18 Years to 79 Years. Per ClinicalTrials.gov, last updated 2019-03-15.

Sponsored by GlaxoSmithKline · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
135
Allocation
Randomized
Ages
18 Years to 79 Years
Sex
All
01

Study summary

This is a multi-center, Phase III study to evaluate the safety and tolerability of proposed dose conversion recommendations for RLS subjects converting from ropinirole immediate release to ropinirole controlled-release for RLS.

02

Conditions studied

  • Restless Legs Syndrome
  • Restless Legs Syndrome (RLS)

Keywords

  • RLS
  • Ropinirole
  • Restless Legs Syndrome
03

In context

Restless Legs Syndrome

254 studies on the registry are indexed under Restless Legs Syndrome; 39 are open to participants now.

This study's enrollment of 135 is above the median of 54 across 201 interventional studies indexed under Restless Legs Syndrome.

Browse Restless Legs Syndrome studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,647 studies on the registry; 118 are open to participants now.

Of its 264 completed or terminated interventional studies of FDA-regulated products, 239 (91%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 79 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Diagnosis of RLS using IRLS Study Group (IRLSSG) diagnostic criteria.
  • Subjects currently being treated for RLS with a stable dose (for at least 2 weeks) of ropinirole IR given once daily.
  • Subjects with RLS symptoms during both the evening and night or night time only.
  • Subjects who have given written informed consent to participate.

Exclusion criteria

Exclusion Criteria:

  • Subjects who require treatment of daytime RLS symptoms.
  • Signs of secondary RLS, serum ferritin level less than 10 mcg/L.
  • Movement Disorders, Clinically significant or unstable medical conditions.
  • Abnormal labs, electrocardiogram (ECG) or physical findings.
  • Receiving prohibited medications.
  • Sleeping habits incompatible with study design.
  • Intolerance to ropinirole or other dopamine agonist.
  • Pregnant or lactating.
  • Women of child-bearing potential who are not practicing an acceptable method of birth control.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Enrollment
135 participants (actual)

Study arms

  • Experimental
    Ropinirole cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IR

    Participants received Placebo in the evening and Ropinirole 1 mg IR at bedtime on Week 1. At the end of Week 1, participants were switched to receive Ropinirole 2 mg controlled release for Restless Legs Syndrome (CR-RLS) in the evening and placebo at bedtime till the end of Week 2. At the end of Week 2, participants were converted back to receive placebo in the evening and Ropinirole 1 mg IR at bedtime and continued to receive the same till the end of Week 4.

    Drug: Ropinirole IR 1 mg · Drug: Ropinirole IR 1 mg Placebo · Drug: Ropinirole CR 2 mg · Drug: Ropinirole CR 2 mg Placebo

  • Experimental
    Ropinirole cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLS

    Participants received Placebo in the evening and Ropinirole 1 mg IR at bedtime on Week 1 and continued to receive the same till the end of Week 3. At the end of Week 3, participants were switched to receive Ropinirole 2 mg CR-RLS in the evening and placebo at bedtime till the end of Week 4.

    Drug: Ropinirole IR 1 mg · Drug: Ropinirole IR 1 mg Placebo · Drug: Ropinirole CR 2 mg · Drug: Ropinirole CR 2 mg Placebo

  • Experimental
    Ropinirole cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IR

    Participants received Placebo in the evening and Ropinirole 2 mg IR at bedtime on Week 1. At the end of Week 1, participants were switched to receive Ropinirole 3 mg CR-RLS in the evening and placebo at bedtime till the end of Week 2. At the end of Week 2, participants were converted back to receive placebo in the evening and Ropinirole 2 mg IR at bedtime and continued to receive the same till the end of Week 4.

    Drug: Ropinirole IR 2 mg · Drug: Ropinirole IR 2 mg Placebo · Drug: Ropinirole CR 3 mg · Drug: Ropinirole CR 3 mg Placebo

  • Experimental
    Ropinirole cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLS

    Participants received Placebo in the evening and Ropinirole 2 mg IR at bedtime on Week 1 and continued to receive the same till the end of Week 3. At the end of Week 3, participants were switched to receive Ropinirole 3 mg CR-RLS in the evening and placebo at bedtime till the end of Week 4.

    Drug: Ropinirole IR 2 mg · Drug: Ropinirole IR 2 mg Placebo · Drug: Ropinirole CR 3 mg · Drug: Ropinirole CR 3 mg Placebo

  • Experimental
    Ropinirole cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IR

    Participants received Placebo in the evening and Ropinirole 4 mg IR at bedtime on Week 1. At the end of Week 1, participants were switched to receive Ropinirole 6 mg CR-RLS in the evening and placebo at bedtime till the end of Week 2. At the end of Week 2, participants were converted back to receive placebo in the evening and Ropinirole 4 mg IR at bedtime and continued to receive the same till the end of Week 4.

    Drug: Ropinirole IR 2 mg · Drug: Ropinirole IR 2 mg Placebo · Drug: Ropinirole CR 3 mg · Drug: Ropinirole CR 3 mg Placebo

  • Experimental
    Ropinirole cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS

    Participants received Placebo in the evening and Ropinirole 4 mg IR at bedtime on Week 1 and continued to receive the same till the end of Week 3. At the end of Week 3, participants were switched to receive Ropinirole 6 mg CR-RLS in the evening and placebo at bedtime till the end of Week 4.

    Drug: Ropinirole IR 2 mg · Drug: Ropinirole IR 2 mg Placebo · Drug: Ropinirole CR 3 mg · Drug: Ropinirole CR 3 mg Placebo

Interventions

  • Ropinirole IR (SKF-101468) will be supplied in the form of a 7mm round bi-convex white film coated tablet, de-bossed with 'GS' on both faces, containing ropinirole hydrochloride equivalent to 1.0mg of active drug substance.

    Also known as: ropinirole controlled-release for RLS

  • Ropinirole IR (SKF-101468) will be supplied in the form of a 7mm round bi-convex white film coated tablet, de-bossed with 'GS' on both faces, containing ropinirole hydrochloride equivalent to 2.0mg of active drug substance.

  • DrugRopinirole IR 1 mg Placebo

    Ropinirole IR (SKF-101468) placebo will be supplied in the form of a 7mm round bi-convex white film coated tablet, de-bossed with 'GS' on both faces, containing matching placebo tablets of 1 mg.

  • DrugRopinirole IR 2 mg Placebo

    Ropinirole IR (SKF-101468) placebo will be supplied in the form of a 7mm round bi-convex white film coated tablet, de-bossed with 'GS' on both faces, containing matching placebo tablets of 2 mg.

  • DrugRopinirole CR 2 mg

    Ropinirole CR Tablets are presented as 7 mm round, bi-convex, white film coated tablets, de-bossed with 'GS' on both faces, containing ropinirole hydrochloride equivalent to 2mg of the active drug substance.

  • DrugRopinirole CR 3 mg

    Ropinirole CR Tablets are presented as 7 mm round, bi-convex, white film coated tablets, de-bossed with 'GS' on both faces, containing ropinirole hydrochloride equivalent to 3mg of the active drug substance.

  • DrugRopinirole CR 2 mg Placebo

    Ropinirole CR placebo Tablets are presented as 7 mm round, bi-convex, white film coated tablets, de-bossed with 'GS' on both faces, containing matching placebo tablets of 2 mg.

  • DrugRopinirole CR 3 mg Placebo

    Ropinirole CR placebo Tablets are presented as 7 mm round, bi-convex, white film coated tablets, de-bossed with 'GS' on both faces, containing matching placebo tablets of 3 mg.

06

What researchers measure

Primary outcomes

  1. Number of Participants With Adverse Events (AEs) Post-conversion From Ropinirole IR to Ropinirole CR Over Period

    AE is an unfavorable change in the health of a participant, including abnormal laboratory findings, that happens during a clinical study or within a certain time period after the study has ended. This change may or may not be caused by the intervention being studied. In each of the 6 cohorts, there were 2 conversions, one of which was IR to CR-RLS and the other one IR to IR. Two populations were defined: the first conversion population and the second conversion population. The first conversion population consisted of all participants receiving at least one dose of randomized drug during the pre-conversion 1 period and during the post-conversion 1 period. The second conversion population consisted of all participants receiving at least one dose of randomized drug during the pre-conversion 2 period and during the post-conversion 2 period.

    Time frame: Up to 5 weeks

Secondary outcomes

  1. Number of Participants Discontinuing the Drug Due to AEs Post Conversion From Ropinirole IR to Ropinirole CR-RLS

    AE is an unfavorable change in the health of a participant, including abnormal laboratory findings, that happens during a clinical study or within a certain time period after the study has ended. This change may or may not be caused by the intervention being studied. Onset of an AE was pre-Conversion 1 and discontinuation for the same AE occurred post-Conversion 1. Serious adverse event (SAE) is an adverse event that results in death, is life-threatening, requires inpatient hospitalization or extends a current hospital stay, results in an ongoing or significant incapacity or interferes substantially with normal life functions, or causes a congenital anomaly or birth defect. Medical events that do not result in death, are not life-threatening, or do not require hospitalization may be considered serious adverse events if they put the participant in danger or require medical or surgical intervention to prevent one of the results listed above.

    Time frame: Up to 5 weeks

  2. Number of Participants With SAEs and Severity of AEs

    SAE is an adverse event that results in death, is life-threatening, requires inpatient hospitalization or extends a current hospital stay, results in an ongoing or significant incapacity or interferes substantially with normal life functions, or causes a congenital anomaly or birth defect. Medical events that do not result in death, are not life-threatening, or do not require hospitalization may be considered serious adverse events if they put the participant in danger or require medical or surgical intervention to prevent one of the results listed above. Severity was measured in terms of grades mild, moderate, and severe. SAEs data only for post-conversion has been reported.

    Time frame: Up to 5 weeks

  3. Number of Participants With Positive Scores (Improved) on Clinical Global Impression Improvement Scale (CGI-I) Pre-conversion and One Week Post-conversion

    Global Improvement Scale (CGI-I) allows the Investigator to rate the participants' global improvement or worsening compared with the condition at Baseline (Day 0), whether or not the change is thought to be due to treatment with study drug. The scale is rated from 1 to 7 (1="Very much improved" to 7="Very much worse"). Typically, a participant with a score of 1 were considered as "Very much improved" and 2 as "Much improved" responder. Positive response was given in terms of worsen to stable or stable to improved.

    Time frame: Up to 4 weeks

  4. Change From Pre-conversion in International RLS (IRLS) Rating Scale Total Score to One Week Post-conversion

    The IRLS Rating Scale was developed to measure disease severity for clinical assessment, research, and therapeutic studies an also to show relationship between responses and overall RLS severity. The IRLS Rating Scale is a disease-specific 10-item scale that is based on the IRLSSG consensus of clinical features and associated sleep problems. The investigator asked the participant to rate his/her symptoms for each of the ten questions contained in the IRLS Rating Scale from 0 to 4, with 0 representing the absence of a problem and 4 a very severe problem. The best and worst possible scores are 0 and 40, respectively; higher scores represent a greater severity of symptoms. Changes from pre- to one-week post-conversion in the IRLS rating scale total score was obtained by subtracting the "Week 1" total score from the "Week 2" total score for the first conversion and the "Week 3" total score from the "Week 4" total score for the second conversion.

    Time frame: Up to 5 weeks

  5. Number of Participants With pre-and One Week Post-conversion Values of Vital Signs of Potential Clinical Concern (PCC)

    The number of participants with pre- and post- conversion orthostatic systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse rate values of PCC were summarized. Both conversions (drug and dummy) were considered. High and low values of only orthostatic SBP and DBP of PCC are presented.

    Time frame: Up to 5 weeks

  6. Change From Pre-conversion in Systolic and Diastolic Orthostatic SBP and DBP to One Week Post-conversion

    Both conversions 1 and 2 (drug and dummy) were considered for analysis. High and low values of only orthostatic SBP and DBP of PCC are presented. Change from pre-conversion in BP is the value of BP at post-conversion minus the value at pre-conversion. For orthostatic changes (standing minus semi-supine vital signs values), pre-conversion measurements were compared with the post-conversion measurements. Positive values are indicative of less orthostatic decrease in blood pressure. The first conversion relates to the Week 1 visit, with pre- to post-conversion changes computed as "Week 2" values minus the Week 1" values, and the second conversion relates to the Week 3 visit with pre- to post-conversion changes computed as the "Week 4" values minus the Week 3" values.

    Time frame: Up to 5 weeks

  7. Change From Pre-conversion in Pulse Rate to One Week Post-conversion

    Both conversions 1 and 2 (drug and dummy) were considered for analysis. High and low values of only orthostatic pulse of PCC are presented. Change from pre-conversion in pulse rate is the value of pulse rate at post-conversion minus the value at pre-conversion. For orthostatic changes (standing minus semi-supine vital signs values), pre-conversion measurements were compared with the post-conversion measurements. Positive values are indicative of less orthostatic decrease in pulse. The first conversion relates to the Week 1 visit, with pre- to post-conversion changes computed as "Week 2" values minus the "Week 1" values, and the second conversion relates to the Week 3 visit with pre- to post-conversion changes computed as the "Week 4" values minus the "Week 3" values.

    Time frame: Up to 5 weeks

  8. Change From Pre-conversion to Post-conversion in Ambulatory Blood Pressure

    Blood pressure (both systolic and diastolic) measurements were made just prior to the first dose of study medication ('evening' dose, ropinirole CR-RLS or matching placebo) and then every hour afterwards up to bedtime (when the device was removed). The changes for the first conversion were calculated as the "post evening dose" values minus the "pre evening dose" values at the Week 1 visit and the changes for the second conversion were the "post evening dose" values minus the "pre evening dose" values at the Week 3 visit.

    Time frame: Up to 5 weeks

07

Results

Posted Mar 15, 2019

Participant flow

This study was conducted from 14 November 2005 till 21 September 2006 across 27 centers in the United States (US).

Participant flow — Overall Study
MilestoneRopinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
Started262626271614
Completed232223241513
Not completed343311
Withdrew: Withdrawal by subject230000
Withdrew: Lack of efficacy100000
Withdrew: Protocol violation011100
Withdrew: Adverse event002201
Withdrew: Not compliant with the study drug000010

Outcome measures

PrimaryNumber of Participants With Adverse Events (AEs) Post-conversion From Ropinirole IR to Ropinirole CR Over Period

AE is an unfavorable change in the health of a participant, including abnormal laboratory findings, that happens during a clinical study or within a certain time period after the study has ended. This change may or may not be caused by the intervention being studied. In each of the 6 cohorts, there were 2 conversions, one of which was IR to CR-RLS and the other one IR to IR. Two populations were defined: the first conversion population and the second conversion population. The first conversion population consisted of all participants receiving at least one dose of randomized drug during the pre-conversion 1 period and during the post-conversion 1 period. The second conversion population consisted of all participants receiving at least one dose of randomized drug during the pre-conversion 2 period and during the post-conversion 2 period.

Time frame:
Up to 5 weeks
Reported as:
Count of participants · Participants
Number of Participants With Adverse Events (AEs) Post-conversion From Ropinirole IR to Ropinirole CR Over Period
ParticipantsRopinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
Post-conversion 1914101175
Post-conversion 2687656
SecondaryNumber of Participants Discontinuing the Drug Due to AEs Post Conversion From Ropinirole IR to Ropinirole CR-RLS

AE is an unfavorable change in the health of a participant, including abnormal laboratory findings, that happens during a clinical study or within a certain time period after the study has ended. This change may or may not be caused by the intervention being studied. Onset of an AE was pre-Conversion 1 and discontinuation for the same AE occurred post-Conversion 1. Serious adverse event (SAE) is an adverse event that results in death, is life-threatening, requires inpatient hospitalization or extends a current hospital stay, results in an ongoing or significant incapacity or interferes substantially with normal life functions, or causes a congenital anomaly or birth defect. Medical events that do not result in death, are not life-threatening, or do not require hospitalization may be considered serious adverse events if they put the participant in danger or require medical or surgical intervention to prevent one of the results listed above.

Time frame:
Up to 5 weeks
Reported as:
Count of participants · Participants
Number of Participants Discontinuing the Drug Due to AEs Post Conversion From Ropinirole IR to Ropinirole CR-RLS
ParticipantsRopinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
Post-conversion 1001100
Post-conversion 2000000
SecondaryNumber of Participants With SAEs and Severity of AEs

SAE is an adverse event that results in death, is life-threatening, requires inpatient hospitalization or extends a current hospital stay, results in an ongoing or significant incapacity or interferes substantially with normal life functions, or causes a congenital anomaly or birth defect. Medical events that do not result in death, are not life-threatening, or do not require hospitalization may be considered serious adverse events if they put the participant in danger or require medical or surgical intervention to prevent one of the results listed above. Severity was measured in terms of grades mild, moderate, and severe. SAEs data only for post-conversion has been reported.

Time frame:
Up to 5 weeks
Reported as:
Count of participants · Participants
Number of Participants With SAEs and Severity of AEs
ParticipantsRopinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
Any SAE, post conversion 1000000
Any SAE, post conversion 2000000
Mild AE, post conversion 1595632
Moderate AE, post conversion 1474644
Severe AE, post conversion 1256221
Mild AE, post conversion 2321121
Moderate AE, post conversion 2243541
Severe AE, post conversion 2223004
SecondaryNumber of Participants With Positive Scores (Improved) on Clinical Global Impression Improvement Scale (CGI-I) Pre-conversion and One Week Post-conversion

Global Improvement Scale (CGI-I) allows the Investigator to rate the participants' global improvement or worsening compared with the condition at Baseline (Day 0), whether or not the change is thought to be due to treatment with study drug. The scale is rated from 1 to 7 (1="Very much improved" to 7="Very much worse"). Typically, a participant with a score of 1 were considered as "Very much improved" and 2 as "Much improved" responder. Positive response was given in terms of worsen to stable or stable to improved.

Time frame:
Up to 4 weeks
Reported as:
Count of participants · Participants
Number of Participants With Positive Scores (Improved) on Clinical Global Impression Improvement Scale (CGI-I) Pre-conversion and One Week Post-conversion
ParticipantsRopinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
Post Coversion 1141210966
Post Conversion 21114131457
SecondaryChange From Pre-conversion in International RLS (IRLS) Rating Scale Total Score to One Week Post-conversion

The IRLS Rating Scale was developed to measure disease severity for clinical assessment, research, and therapeutic studies an also to show relationship between responses and overall RLS severity. The IRLS Rating Scale is a disease-specific 10-item scale that is based on the IRLSSG consensus of clinical features and associated sleep problems. The investigator asked the participant to rate his/her symptoms for each of the ten questions contained in the IRLS Rating Scale from 0 to 4, with 0 representing the absence of a problem and 4 a very severe problem. The best and worst possible scores are 0 and 40, respectively; higher scores represent a greater severity of symptoms. Changes from pre- to one-week post-conversion in the IRLS rating scale total score was obtained by subtracting the "Week 1" total score from the "Week 2" total score for the first conversion and the "Week 3" total score from the "Week 4" total score for the second conversion.

Time frame:
Up to 5 weeks
Reported as:
Mean · Scores on a scale
Change From Pre-conversion in International RLS (IRLS) Rating Scale Total Score to One Week Post-conversion
Scores on a scaleRopinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
Post-Conversion 1-5.1 ± 8.84-0.1 ± 7.34-1.5 ± 6.73-1.3 ± 7.15-5.8 ± 6.141.2 ± 10.33
Post-Conversion 2-2.9 ± 7.07-4.8 ± 7.73-1.6 ± 6.29-5.2 ± 9.620.6 ± 7.28-2.2 ± 11.58
SecondaryNumber of Participants With pre-and One Week Post-conversion Values of Vital Signs of Potential Clinical Concern (PCC)

The number of participants with pre- and post- conversion orthostatic systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse rate values of PCC were summarized. Both conversions (drug and dummy) were considered. High and low values of only orthostatic SBP and DBP of PCC are presented.

Time frame:
Up to 5 weeks
Reported as:
Count of participants · Participants
Number of Participants With pre-and One Week Post-conversion Values of Vital Signs of Potential Clinical Concern (PCC)
ParticipantsRopinirole Cohort ARopinirole Cohort BRopinirole Cohort C
1 mg IR to 2 mg CR, SBP, PCC low, pre-conversion1——
1 mg IR to 1 mg IR, SBP, PCC high, post-conversion1——
2 mg IR to 3 mg CR, SBP, PCC high, pre-conversion—1—
2 mg IR to 2 mg IR,SBP, PCC high, post-conversion—1—
4 mg IR to 4 mg IR, SBP, PCC high, pre-conversion——1
1 mg IR to 2 mg CR, DBP, PCC high, pre-conversion2——
1 mg IR to 2 mg CR, DBP, PCC high, post-conversion3——
1 mg IR to 1 mg IR, DBP, PCC high, pre-conversion4——
1 mg IR to 1 mg IR, DBP, PCC high, post-conversion2——
2 mg IR to 3 mg CR, DBP, PCC high, pre-conversion—1—
2 mg IR to 3 mg CR, DBP, PCC high, post-conversion—6—
2 mg IR to 2 mg IR, DBP, PCC high, pre-conversion—2—
2 mg IR to 2 mg IR, DBP, PCC high, post-conversion—2—
4 mg IR to 6 mg CR, DBP, PCC high, post-conversion——4
4 mg IR to 4 mg IR, DBP, PCC high, pre-conversion——1
4 mg IR to 4 mg IR, DBP, PCC high, post-conversion——2
1 mg IR to 1 mg IR, pulse, PCC low,post-conversion1——
2 mg IR to 3 mg CR, pulse, PCC high,pre-conversion—1—
2 mg IR to 2 mg IR, pulse,PCC high,post-conversion—2—
SecondaryChange From Pre-conversion in Systolic and Diastolic Orthostatic SBP and DBP to One Week Post-conversion

Both conversions 1 and 2 (drug and dummy) were considered for analysis. High and low values of only orthostatic SBP and DBP of PCC are presented. Change from pre-conversion in BP is the value of BP at post-conversion minus the value at pre-conversion. For orthostatic changes (standing minus semi-supine vital signs values), pre-conversion measurements were compared with the post-conversion measurements. Positive values are indicative of less orthostatic decrease in blood pressure. The first conversion relates to the Week 1 visit, with pre- to post-conversion changes computed as "Week 2" values minus the Week 1" values, and the second conversion relates to the Week 3 visit with pre- to post-conversion changes computed as the "Week 4" values minus the Week 3" values.

Time frame:
Up to 5 weeks
Reported as:
Mean · Millimeters of mercury (mm of Hg)
Change From Pre-conversion in Systolic and Diastolic Orthostatic SBP and DBP to One Week Post-conversion
Millimeters of mercury (mm of Hg)Ropinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
Semi-supine SBP, conversion 1-0.8 ± 12.08-3.9 ± 13.784.0 ± 10.81-7.7 ± 10.20-1.2 ± 7.85-5.3 ± 17.84
Standing SBP, conversion 12.3 ± 12.57-2.9 ± 13.18-0.2 ± 14.19-4.1 ± 10.750.7 ± 6.64-3.9 ± 11.43
Semi-supine SBP, conversion 21.6 ± 14.510.6 ± 10.330.3 ± 8.912.1 ± 10.73-2.6 ± 8.81-6.2 ± 19.61
Standing SBP, conversion 2-0.3 ± 13.243.1 ± 14.593.6 ± 9.231.0 ± 12.900.4 ± 12.42-4.9 ± 16.82
Orhostatic SBP, post-conversion 13.2 ± 10.691.0 ± 10.29-4.2 ± 12.123.4 ± 9.951.9 ± 7.761.4 ± 9.69
Orthostatic SBP, post-conversion 2-1.9 ± 10.182.5 ± 13.323.3 ± 8.42-1.0 ± 9.733.0 ± 13.461.3 ± 12.39
Semi-supine DBP, conversion 11.3 ± 10.96-2.5 ± 8.102.2 ± 10.43-3.5 ± 6.52-1.3 ± 7.61-1.2 ± 6.91
Standing DBP, conversion 13.3 ± 7.56-3.4 ± 10.254.1 ± 11.45-3.2 ± 7.110.6 ± 6.07-0.8 ± 10.08
Semi-supine DBP, conversion 2-0.5 ± 8.672.8 ± 8.801.3 ± 5.53-0.7 ± 8.170.0 ± 5.45-0.7 ± 13.24
Standing DBP, conversion 2-2.7 ± 8.642.8 ± 7.920.3 ± 7.420.7 ± 8.91-0.3 ± 6.761.8 ± 12.14
Orthostatic DBP, post-conversion 12.0 ± 7.22-0.9 ± 7.111.9 ± 9.700.5 ± 6.371.9 ± 6.530.4 ± 8.17
Orthostatic DBP, post-conversion 2-2.2 ± 5.690.0 ± 6.30-1.1 ± 6.491.4 ± 7.82-0.3 ± 3.312.5 ± 8.37
SecondaryChange From Pre-conversion in Pulse Rate to One Week Post-conversion

Both conversions 1 and 2 (drug and dummy) were considered for analysis. High and low values of only orthostatic pulse of PCC are presented. Change from pre-conversion in pulse rate is the value of pulse rate at post-conversion minus the value at pre-conversion. For orthostatic changes (standing minus semi-supine vital signs values), pre-conversion measurements were compared with the post-conversion measurements. Positive values are indicative of less orthostatic decrease in pulse. The first conversion relates to the Week 1 visit, with pre- to post-conversion changes computed as "Week 2" values minus the "Week 1" values, and the second conversion relates to the Week 3 visit with pre- to post-conversion changes computed as the "Week 4" values minus the "Week 3" values.

Time frame:
Up to 5 weeks
Reported as:
Mean · Beats per minute (bpm)
Change From Pre-conversion in Pulse Rate to One Week Post-conversion
Beats per minute (bpm)Ropinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
Semi-supine pulse, Conversion 1-0.1 ± 7.01-0.4 ± 5.381.0 ± 9.42-0.9 ± 6.81-1.5 ± 6.991.2 ± 8.09
Standing pulse, Conversion 12.4 ± 8.390.3 ± 9.480.0 ± 10.710.7 ± 8.82-0.8 ± 7.84-0.8 ± 8.69
Semi-supine pulse, Conversion 2-0.7 ± 8.110.3 ± 6.810.2 ± 9.050.3 ± 8.490.6 ± 5.18-0.8 ± 8.97
Standing pulse, Conversion 2-0.4 ± 9.360.3 ± 8.951.4 ± 12.770.9 ± 9.010.9 ± 5.991.5 ± 8.53
Post-Conversion 12.5 ± 8.800.7 ± 8.38-1.0 ± 6.721.6 ± 8.290.7 ± 4.59-2.0 ± 7.56
Post-Conversion 20.3 ± 9.270.0 ± 6.781.2 ± 9.870.6 ± 6.240.3 ± 6.072.2 ± 5.37
SecondaryChange From Pre-conversion to Post-conversion in Ambulatory Blood Pressure

Blood pressure (both systolic and diastolic) measurements were made just prior to the first dose of study medication ('evening' dose, ropinirole CR-RLS or matching placebo) and then every hour afterwards up to bedtime (when the device was removed). The changes for the first conversion were calculated as the "post evening dose" values minus the "pre evening dose" values at the Week 1 visit and the changes for the second conversion were the "post evening dose" values minus the "pre evening dose" values at the Week 3 visit.

Time frame:
Up to 5 weeks
Reported as:
Mean · mmHg
Change From Pre-conversion to Post-conversion in Ambulatory Blood Pressure
mmHgRopinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLS
SBP, conversion 1, <30 minutes-20.0 ± NA—-20.0 ± NA-6.0 ± NA——
SBP, conversion 1, 1 hour-8.0 ± 10.64-6.4 ± 14.14-10.6 ± 9.86-1.0 ± 10.96-6.3 ± 8.35-5.0 ± 2.83
SBP, conversion 1, 2 hours-12.9 ± 14.100.1 ± 16.83-9.1 ± 6.84-4.3 ± 10.35-8.0 ± 7.197.5 ± 4.95
SBP, conversion 1, 3 hours-10.8 ± 13.571.3 ± 12.46-15.9 ± 13.71-3.0 ± 9.49-7.4 ± 8.82-4.5 ± 0.71
SBP, conversion 1, 4 hours-11.0 ± 7.26-9.9 ± 17.40-12.8 ± 15.82-10.3 ± 7.74-12.8 ± 12.893.5 ± 2.12
SBP, conversion 1, 5 hours-8.6 ± 7.70-10.6 ± 20.86-15.5 ± 13.77-8.3 ± 5.91-15.5 ± 6.3614.0 ± NA
SBP, conversion 1, 6 hours-14.3 ± 4.51-11.0 ± NA-9.0 ± 21.38-11.0 ± 25.46—0.0 ± NA
SBP, conversion 2, <30 minutes—-15.0 ± NA——-5.5 ± 4.9512.0 ± NA
SBP, conversion 2, 1 hour-5.4 ± 11.35-1.5 ± 13.81-1.6 ± 9.80-1.3 ± 13.470.6 ± 10.71-2.8 ± 3.77
SBP, conversion 2, 2 hours2.6 ± 19.23-10.6 ± 17.442.0 ± 6.62-0.6 ± 16.33-0.3 ± 6.56-5.0 ± 10.71
SBP, conversion 2, 3 hours-12.0 ± 13.51-4.6 ± 11.64-3.3 ± 12.010.7 ± 14.13-5.0 ± 9.49-4.3 ± 8.81
SBP, conversion 2, 4 hours1.0 ± 10.61-6.8 ± 4.27-2.6 ± 14.046.4 ± 4.040.3 ± 13.41-7.3 ± 5.56
SBP, conversion 2, 5 hours-9.0 ± 7.07-11.0 ± 11.36-0.5 ± 13.103.7 ± 9.45-18.0 ± 8.549.0 ± NA
SBP, conversion 2, 6 hours-8.0 ± NA3.0 ± NA-0.6 ± 14.84-7.0 ± NA-20.5 ± 7.78—
DBP, conversion 1, <30 minutes-6.0 ± NA—-2.0 ± NA-2.0 ± NA——
DBP, conversion 1, 1 hour-4.9 ± 6.69-4.7 ± 10.37-1.6 ± 9.46-1.5 ± 9.64-5.4 ± 8.55-5.0 ± 1.41
DBP, conversion 1, 2 hours-9.0 ± 13.59-2.9 ± 10.53-0.4 ± 7.32-4.8 ± 6.71-3.4 ± 7.256.0 ± 4.24
DBP, conversion 1, 3 hours-4.9 ± 10.89-1.9 ± 9.72-8.1 ± 11.26-9.2 ± 9.14-5.4 ± 7.96-5.0 ± 8.49
DBP, conversion 1, 4 hours-5.3 ± 6.82-9.7 ± 10.74-8.4 ± 8.41-5.1 ± 8.11-4.0 ± 10.894.0 ± 4.24
DBP, conversion 1, 5 hours-1.2 ± 2.28-8.4 ± 14.13-10.0 ± 9.42-5.8 ± 9.29-14.5 ± 9.190.0 ± 0.0
DBP, conversion 1, 6 hours-9.0 ± 4.36-23.0 ± NA-3.3 ± 2.08-6.0 ± 9.90—8.0 ± NA
DBP, conversion 2, <30 minutes—-10.0 ± NA——-4.5 ± 0.7120.0 ± NA
DBP, conversion 2, 1 hour-0.4 ± 12.70-5.1 ± 10.37-1.9 ± 8.500.9 ± 12.860.2 ± 8.973.8 ± 7.69
DBP, conversion 2, 2 hours4.6 ± 12.42-9.6 ± 11.90-3.3 ± 11.190.9 ± 15.45-4.4 ± 8.62-10.5 ± 9.15
DBP, conversion 2, 3 hours2.4 ± 20.42-5.8 ± 7.12-10.5 ± 14.16-1.4 ± 10.67-7.2 ± 5.71-4.5 ± 7.59
DBP, conversion 2, 4 hours0.8 ± 17.11-8.3 ± 10.14-4.6 ± 17.66-1.0 ± 10.51-3.8 ± 7.19-7.8 ± 7.97
DBP, conversion 2, 5 hours-8.0 ± 0.00-2.3 ± 13.61-7.5 ± 13.712.0 ± 16.09-17.0 ± 5.208.0 ± NA
DBP, conversion 2, 6 hours-7.0 ± NA-10.0 ± NA-5.8 ± 20.03-15.0 ± NA-15.0 ± 1.41—

Adverse events

Collected over Up to 5 weeks. Non-serious events are listed at a 3% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Ropinirole Cohort A0/52 (0%)1/52 (1.9%)37/52 (71.2%)
Ropinirole Cohort B0/53 (0%)0/53 (0%)38/53 (71.7%)
Ropinirole Cohort C0/30 (0%)0/30 (0%)19/30 (63.3%)
Most frequent serious events
Most frequent serious events
EventRopinirole Cohort ARopinirole Cohort BRopinirole Cohort C
PalpitationsCardiac disorders1/520/530/30
Most frequent other events
Showing 10 of 25
Most frequent other events
EventRopinirole Cohort ARopinirole Cohort BRopinirole Cohort C
Pain in extremityMusculoskeletal and connective tissue disorders23/524/532/30
HeadacheNervous system disorders16/5218/535/30
NauseaGastrointestinal disorders10/5215/539/30
DizzinessNervous system disorders7/522/532/30
Restless legs syndromeMusculoskeletal and connective tissue disorders3/526/533/30
VomitingGastrointestinal disorders1/525/533/30
SomnolenceNervous system disorders4/523/532/30
DyspepsiaGastrointestinal disorders4/522/530/30
ArthralgiaMusculoskeletal and connective tissue disorders4/521/530/30
InsomniaNervous system disorders4/522/531/30

Baseline characteristics

Safety population included all participants who entered into the study and who received at least one dose of the double-blind medication.

Age, Continuous
Age, Continuous(Years)Ropinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLSTotal
Mean56.8 ± 12.9157.4 ± 8.6959.2 ± 10.2153.7 ± 13.9458.3 ± 11.9657.1 ± 9.6757.0 ± 11.44
Sex: Female, Male
Sex: Female, Male(Participants)Ropinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLSTotal
Female201814187784
Male681299751
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Ropinirole Cohort A1: 1 mg IR/2 mg CR-RLS/1 mg IR/1 mg IRRopinirole Cohort A2: 1 mg IR/1 mg IR/1 mg IR/2 mg CR-RLSRopinirole Cohort B1: 2 mg IR/3 mg CR-RLS/2 mg IR/2 mg IRRopinirole Cohort B2: 2 mg IR/2 mg IR/2 mg IR/3 mg CR-RLSRopinirole Cohort C1: 4 mg IR/6 mg CR-RLS/4 mg IR/4 mg IRRopinirole Cohort C2: 4 mg IR/4 mg IR/4 mg IR/6 mg CR-RLSTotal
American Indian or Alaska Native0100001
Asian0000000
Native Hawaiian or Other Pacific Islander0000000
Black or African American1100103
White252425271514130
More than one race0000000
Unknown or Not Reported0010001
08

Study locations

30 sites
  • GSK Investigational Site
    Laguna Hills, California 82653, United States
  • GSK Investigational Site
    Oxnard, California 93030, United States
  • GSK Investigational Site
    Pasadena, California 91106, United States
  • GSK Investigational Site
    Reseda, California 91355, United States
  • GSK Investigational Site
    Boca Raton, Florida 33486, United States
  • GSK Investigational Site
    St. Petersburg, Florida 33701, United States
  • GSK Investigational Site
    Tampa, Florida 33609, United States
  • GSK Investigational Site
    Atlanta, Georgia 30342, United States
  • GSK Investigational Site
    Oak Brook, Illinois 60523, United States
  • GSK Investigational Site
    Lenexa, Kansas 66214, United States
  • GSK Investigational Site
    Baton Rouge, Louisiana 70808, United States
  • GSK Investigational Site
    Springfield, Massachusetts 01104, United States
  • GSK Investigational Site
    Bingham Farms, Michigan 48025, United States
  • GSK Investigational Site
    Las Vegas, Nevada 89119, United States
  • GSK Investigational Site
    Lebanon, New Hampshire 03766, United States
  • GSK Investigational Site
    Cherry Hill, New Jersey 08003, United States
  • GSK Investigational Site
    Toms River, New Jersey 08755, United States
  • GSK Investigational Site
    New York, New York 10021, United States
  • GSK Investigational Site
    Plainview, New York 11803, United States
  • GSK Investigational Site
    Greenville, North Carolina 27834, United States
  • GSK Investigational Site
    Dayton, Ohio 46432, United States
  • GSK Investigational Site
    Oklahoma City, Oklahoma 73112, United States
  • GSK Investigational Site
    Medford, Oregon 97504-8456, United States
  • GSK Investigational Site
    Portland, Oregon 97210, United States
  • GSK Investigational Site
    Columbia, South Carolina 29201, United States
  • GSK Investigational Site
    Dallas, Texas 75213, United States
  • GSK Investigational Site
    San Antonio, Texas 78229, United States
  • GSK Investigational Site
    Tacoma, Washington 98405, United States
  • GSK Investigational Site
    Walla Walla, Washington 99362, United States
  • GSK Investigational Site
    Madison, Wisconsin 53715, United States
09

References and documents

Individual participant data

Plan to share: Yes — Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2005 to primary completion in Sep 2006, 10 months.

Results were first posted in Mar 2019, 12 years 5 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 21, 2005
First posted
Nov 22, 2005
StartActual
Nov 14, 2005
Primary completionActual
Sep 21, 2006
CompletionActual
Sep 21, 2006
Results first posted
Mar 15, 2019
Last update
Mar 15, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 15, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00256854
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Nov 22, 2005
Start date
Nov 14, 2005
Primary completion
Sep 21, 2006
Completion
Sep 21, 2006
Results posted
Mar 15, 2019
Last update
Mar 15, 2019

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Ropinirole

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