CClinicalTrials.gg
CompletedNCT01174459Updated Aug 29, 2014Results posted

Survey on Long-Term Use of BI-Sifrol® Tablets in Patients With Restless Legs Syndrome

An observational study in Restless Legs Syndrome, sponsored by Boehringer Ingelheim. Completed at 159 sites in Japan. Open to participants aged 15 Years and older. Per ClinicalTrials.gov, last updated 2014-08-29.

Sponsored by Boehringer Ingelheim · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
571
Ages
15 Years and older
Sex
All
01

Study summary

The survey is conducted to investigate the safety and efficacy of long-term use of BI-Sifrol Tablets in Restless Legs Syndrome (RLS) patients with or without renal dysfunction in routine medical practice.

02

Conditions studied

03

In context

Psychomotor Agitation

500 studies on the registry are indexed under Psychomotor Agitation; 55 are open to participants now.

This study's enrollment of 571 is above the median of 154 across 71 observational studies indexed under Psychomotor Agitation.

Browse Psychomotor Agitation studies →

Lead sponsor

Boehringer Ingelheim is the lead sponsor of 2,245 studies on the registry; 58 are open to participants now.

Of its 162 completed or terminated interventional studies of FDA-regulated products, 116 (72%) have results posted.

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

04

Who can participate

Ages eligible
15 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

500

Inclusion criteria

Patient with Restless Legs Syndrome

Exclusion criteria

Exclusion criteria:

None

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
571 participants (actual)

Groups and cohorts

  • Patient with Restless Legs Syndrome
06

What researchers measure

Primary outcomes

  1. Incidence of Drug-related Adverse Events

    Number of patients with drug-related adverse events

    Time frame: 12 Months

Secondary outcomes

  1. Change From Baseline in Total Score of the International Restless Legs Syndrome Rating Scale (IRLS)

    International Restless Legs Syndrome rating scale (IRLS): The IRLS rating scale is a selfrating scale used to evaluate the severity of RLS and the patients are requested to answer 10 questions on a scale of 0 to 4. Respective scores (0-4 points) for the 10 questions were added up to calculate the total score on the IRLS. Therefore the total score is 0-40. The lower values represent a better outcome.

    Time frame: after 12 months or at the end of observation

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Results

Posted Aug 29, 2014

Participant flow

Participant flow — Overall Study
MilestonePatient With Restless Legs Syndrome
Started571
Completed566
Not completed5
Withdrew: Case report form (crf) not collected5

Outcome measures

PrimaryIncidence of Drug-related Adverse Events

Number of patients with drug-related adverse events

Time frame:
12 Months
Reported as:
Number · participants
Incidence of Drug-related Adverse Events
participantsPatient With Restless Legs Syndrome
Incidence of Drug-related Adverse Events76
SecondaryChange From Baseline in Total Score of the International Restless Legs Syndrome Rating Scale (IRLS)

International Restless Legs Syndrome rating scale (IRLS): The IRLS rating scale is a selfrating scale used to evaluate the severity of RLS and the patients are requested to answer 10 questions on a scale of 0 to 4. Respective scores (0-4 points) for the 10 questions were added up to calculate the total score on the IRLS. Therefore the total score is 0-40. The lower values represent a better outcome.

Time frame:
after 12 months or at the end of observation
Reported as:
Mean · Score on a scale
Change From Baseline in Total Score of the International Restless Legs Syndrome Rating Scale (IRLS)
Score on a scalePatient With Restless Legs Syndrome
Change From Baseline in Total Score of the International Restless Legs Syndrome Rating Scale (IRLS)-13.42 ± 10.40

Adverse events

Collected over During the 12-month period or within 2 days after the last administration of pramipexole, up to 990 days.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Patient With Restless Legs Syndrome—10/510 (2%)0/510 (0%)
Most frequent serious events
Showing 10 of 13
Most frequent serious events
EventPatient With Restless Legs Syndrome
Supraventricular tachycardiaCardiac disorders1/510
Abdominal painGastrointestinal disorders1/510
Gastrointestinal haemorrhageGastrointestinal disorders1/510
IleusGastrointestinal disorders1/510
CholangitisHepatobiliary disorders1/510
FallInjury, poisoning and procedural complications1/510
Radius fractureInjury, poisoning and procedural complications1/510
HyperkalaemiaMetabolism and nutrition disorders1/510
Metastases to meningesNeoplasms benign, malignant and unspecified (incl cysts and polyps)1/510
Metastases to central nervous systemNeoplasms benign, malignant and unspecified (incl cysts and polyps)1/510

Baseline characteristics

Safety set: all patients who were documented to have taken at least one dose of pramipexole except for patients who had no observation documented after entry, made invalid registration or were not under the appropriate site contact. 56 patients who didn't visit hospital after the treatment of pramipexole for RLS were excluded from safety set.

Age, Continuous
Age, Continuous(years)Patient With Restless Legs Syndrome
Mean61.4 ± 16.8
Sex: Female, Male
Sex: Female, Male(Participants)Patient With Restless Legs Syndrome
Female298
Male212
08

Study locations

159 sites
  • Boehringer Ingelheim Investigational Site 119
    Akashi, Japan
  • Boehringer Ingelheim Investigational Site 52
    Akishima, Japan
  • Boehringer Ingelheim Investigational Site 16
    Akita, Japan
  • Boehringer Ingelheim Investigational Site 22
    Ami-machi, Japan
  • Boehringer Ingelheim Investigational Site 1
    Asahikawa, Japan
  • Boehringer Ingelheim Investigational Site 36
    Asahi, Japan
  • Boehringer Ingelheim Investigational Site 40
    Chiba, Japan
  • Boehringer Ingelheim Investigational Site 158
    Chofu, Japan
  • Boehringer Ingelheim Investigational Site 78
    Chuo, Japan
  • Boehringer Ingelheim Investigational Site 66
    Fujisawa, Japan
  • Boehringer Ingelheim Investigational Site 7
    Fukagawa, Japan
  • Boehringer Ingelheim Investigational Site 144
    Fukuoka, Japan
  • Boehringer Ingelheim Investigational Site 146
    Fukuoka, Japan
  • Boehringer Ingelheim Investigational Site 19
    Fukushima, Japan
  • Boehringer Ingelheim Investigational Site 132
    Fukuyama, Japan
  • Boehringer Ingelheim Investigational Site 82
    Gifu, Japan
  • Boehringer Ingelheim Investigational Site 83
    Hamamatsu, Japan
  • Boehringer Ingelheim Investigational Site 56
    Hatchioji, Japan
  • Boehringer Ingelheim Investigational Site 129
    Hayashima-machi, Japan
  • Boehringer Ingelheim Investigational Site 123
    Himeji, Japan
  • Boehringer Ingelheim Investigational Site 111
    Hirakata, Japan
  • Boehringer Ingelheim Investigational Site 133
    Hiroshima, Japan
  • Boehringer Ingelheim Investigational Site 30
    Honjo, Japan
  • Boehringer Ingelheim Investigational Site 38
    Ichihara, Japan
  • Boehringer Ingelheim Investigational Site 79
    Ichikawasango-machi, Japan
  • Boehringer Ingelheim Investigational Site 37
    Ichikawa, Japan
  • Boehringer Ingelheim Investigational Site 117
    Ikeda, Japan
  • Boehringer Ingelheim Investigational Site 149
    Isahaya, Japan
  • Boehringer Ingelheim Investigational Site 118
    Itami, Japan
  • Boehringer Ingelheim Investigational Site 10
    Iwamizawa, Japan
  • Boehringer Ingelheim Investigational Site 127
    Izumo, Japan
  • Boehringer Ingelheim Investigational Site 154
    Kagoshima, Japan
  • Boehringer Ingelheim Investigational Site 155
    Kagoshima, Japan
  • Boehringer Ingelheim Investigational Site 74
    Kanazawa, Japan
  • Boehringer Ingelheim Investigational Site 76
    Kanazawa, Japan
  • Boehringer Ingelheim Investigational Site 120
    Katou, Japan
  • Boehringer Ingelheim Investigational Site 124
    Kawai-machi, Japan
  • Boehringer Ingelheim Investigational Site 60
    Kawasaki, Japan
  • Boehringer Ingelheim Investigational Site 63
    Kawasaki, Japan
  • Boehringer Ingelheim Investigational Site 31
    Keroyama-machi, Japan
  • Boehringer Ingelheim Investigational Site 145
    Kitakyuushu, Japan
  • Boehringer Ingelheim Investigational Site 122
    Kobe, Japan
  • Boehringer Ingelheim Investigational Site 46
    Kodaira, Japan
  • Boehringer Ingelheim Investigational Site 50
    Kodaira, Japan
  • Boehringer Ingelheim Investigational Site 32
    Koshigaya, Japan
  • Boehringer Ingelheim Investigational Site 150
    Kumamoto, Japan
  • Boehringer Ingelheim Investigational Site 151
    Kumamoto, Japan
  • Boehringer Ingelheim Investigational Site 143
    Kurume, Japan
  • Boehringer Ingelheim Investigational Site 102
    Kyoto, Japan
  • Boehringer Ingelheim Investigational Site 103
    Kyoto, Japan
  • Boehringer Ingelheim Investigational Site 98
    Kyoto, Japan
  • Boehringer Ingelheim Investigational Site 99
    Kyoto, Japan
  • Boehringer Ingelheim Investigational Site 100
    Maizuru, Japan
  • Boehringer Ingelheim Investigational Site 142
    Mat?uyama, Japan
  • Boehringer Ingelheim Investigational Site 80
    Matsumoto, Japan
  • Boehringer Ingelheim Investigational Site 81
    Matsumoto, Japan
  • Boehringer Ingelheim Investigational Site 28
    Mibu-machi, Japan
  • Boehringer Ingelheim Investigational Site 138
    Miki-machi, Japan
  • Boehringer Ingelheim Investigational Site 115
    Minoo, Japan
  • Boehringer Ingelheim Investigational Site 47
    Mitaka, Japan
  • Boehringer Ingelheim Investigational Site 153
    Miyazaki, Japan
  • Boehringer Ingelheim Investigational Site 134
    Miyoshi, Japan
  • Boehringer Ingelheim Investigational Site 112
    Moriguchi, Japan
  • Boehringer Ingelheim Investigational Site 13
    Morioka, Japan
  • Boehringer Ingelheim Investigational Site 2
    Muroran, Japan
  • Boehringer Ingelheim Investigational Site 88
    Nagakute-machi, Japan
  • Boehringer Ingelheim Investigational Site 101
    Nagaokakyo, Japan
  • Boehringer Ingelheim Investigational Site 41
    Nagareyama, Japan
  • Boehringer Ingelheim Investigational Site 148
    Nagasaki, Japan
  • Boehringer Ingelheim Investigational Site 85
    Nagoya, Japan
  • Boehringer Ingelheim Investigational Site 86
    Nagoya, Japan
  • Boehringer Ingelheim Investigational Site 87
    Nagoya, Japan
  • Boehringer Ingelheim Investigational Site 92
    Nagoya, Japan
  • Boehringer Ingelheim Investigational Site 68
    Nigata, Japan
  • Boehringer Ingelheim Investigational Site 69
    Nigata, Japan
  • Boehringer Ingelheim Investigational Site 70
    Nigata, Japan
  • Boehringer Ingelheim Investigational Site 71
    Nigata, Japan
  • Boehringer Ingelheim Investigational Site 139
    Niihama, Japan
  • Boehringer Ingelheim Investigational Site 141
    Niihama, Japan
  • Boehringer Ingelheim Investigational Site 11
    Ninohe, Japan
  • Boehringer Ingelheim Investigational Site 121
    Nishinomiya, Japan
  • Boehringer Ingelheim Investigational Site 157
    Nishitokyo, Japan
  • Boehringer Ingelheim Investigational Site 17
    Odate, Japan
  • Boehringer Ingelheim Investigational Site 152
    Oita, Japan
  • Boehringer Ingelheim Investigational Site 130
    Okayama, Japan
  • Boehringer Ingelheim Investigational Site 131
    Okayama, Japan
  • Boehringer Ingelheim Investigational Site 89
    Okazaki, Japan
  • Boehringer Ingelheim Investigational Site 113
    Osakasayama, Japan
  • Boehringer Ingelheim Investigational Site 104
    Osaka, Japan
  • Boehringer Ingelheim Investigational Site 105
    Osaka, Japan
  • Boehringer Ingelheim Investigational Site 106
    Osaka, Japan
  • Boehringer Ingelheim Investigational Site 128
    Ota, Japan
  • Boehringer Ingelheim Investigational Site 97
    Otsu, Japan
  • Boehringer Ingelheim Investigational Site 140
    Ozu, Japan
  • Boehringer Ingelheim Investigational Site 26
    Ryugasaki, Japan
  • Boehringer Ingelheim Investigational Site 64
    Sagamihara, Japan
  • Boehringer Ingelheim Investigational Site 147
    Saga, Japan
  • Boehringer Ingelheim Investigational Site 34
    Saitama, Japan
  • Boehringer Ingelheim Investigational Site 107
    Sakai, Japan
  • Boehringer Ingelheim Investigational Site 108
    Sakai, Japan

Showing the first 100 of 159 sites.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 29, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01174459
Lead sponsor
Boehringer Ingelheim
Responsible party
Sponsor
First posted
Aug 3, 2010
Start date
Aug 2010
Primary completion
Aug 2013
Completion
Aug 2013
Results posted
Aug 29, 2014
Last update
Aug 29, 2014

Study contacts

Boehringer Ingelheim
study chair · Boehringer Ingelheim
View the source record on ClinicalTrials.gov ↗

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