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Completed

NCT Number: NCT01263925

Prostaglandin E1 in Outpatients With Intermittent Claudication

Investigate, under outpatient conditions, both the effect of 4 weeks of daily treatment with Prostaglandin E1 and that of 4 weeks of interval treatment (two infusions per week) on the pain-free walking distance in patients with Intermittent Claudication.

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Key information

Conditions

Stage II Peripheral Arterial Occlusive Disease Intermittent Claudication Fontaine Stage II PAOD Peripheral Arterial Occlusive Disease 1

Age range

40 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Aachen, Germany

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subjects with Peripheral Arterial Occlusive Disease (PAOD) of the lower extremity in Fontaine stage II
  • Maximum walking distance on the treadmill (12 %, 3 km/h) between 30 and 150 m
  • Stable Intermittent Claudication of at least 6 months standing with no acute shortening of walking distance over the past 3 months
  • Stenoses or occlusions below the Femoral Bifurcation (above-knee or below-knee type) confirmed by duplex US or angiography
  • Ankle/brachial index ≤ 0.90 with a decrease in systolic ankle pressure of ≥ 10 % after maximum loading (maximum walking distance on the treadmill at 3 km/h, 12 %)
  • The patient is physically and mentally capable of participating in the trial
  • Patient age > 40 years, male and female
  • Patient is informed and given ample time and opportunity to think about her/his participation and has given her/his written informed consent
  • Patient is willing and able to comply with all trial requirements

Exclusion criteria

  • Surgical or other interventional measures performed on the affected extremity and Prostaglandin treatment within the 6 months immediately prior to the trial
  • Rest pain and Necroses
  • Systolic ankle pressure less than 50 mmHg
  • Change in maximum walking distance during the one-week Run-in Phase of more than ± 25 % of Baseline
  • Successful physical walking training within the 6 months immediately prior to the trial
  • Inflammatory vascular diseases
  • Polyneuropathy in Diabetes Mellitus
  • Diseases limiting walking distance (Arthrosis, inflammatory diseases of the joints, neurological disease, diseases of the Vertebral Column, cardiopulmonary diseases)
  • History of Pulmonary Oedema
  • Myocardial infarction within the past 6 months
  • Pregnancy or nursing
  • Known hypersensitivity to any components of the trial medication or comparative drug
  • Renal insufficiency, compensated retention (creatinine > 2.0 mg/dL)
  • Severe retinal Haemorrhage
  • Massive Haemorrhage
  • Known existing malignant diseases
  • Vasoactive concomitant medication (e.g. Naftidrofuryl, Pentoxifylline, Buflomedil, Cilostazol), or other Prostaglandins
  • Untreated or uncontrolled Hypertension (systolic blood pressure ≥ 180 mmHg, diastolic blood pressure ≥ 110 mmHg)
  • Previous participation of the patient in the present trial
  • Participation of the patient in a trial with the same objectives within the past 6 months, or is currently participating in another trial
  • Illness of the patient due to alcohol or drug-abuse within the past 6 months
  • Serious illness of the patient that the investigator considers to compromise his/her participation in the trial

Treatment and study plan

Alprostadil (Prostaglandin E1)

Drug

4-week Daily Treatment Period 1: 4 weeks of 1 x daily intravenous infusion of 3 ampoules (20 µg) of Prostaglandin E1 (total 60 µg) in 50 - 250 ml physiological saline solution over 2 hours.

4-week Interval Treatment Period 2: 4 weeks of 2 x weekly intravenous infusion of 3 ampoules (20 µg) of Prostaglandin E1 (total 60 µg) in 50 - 250 ml physiological saline solution over 2 hours.

Other names: Prostavasin

Pentoxifylline

Drug

4-week Daily Treatment Period 1: 4 weeks of 2 x daily (including weekends) 600 mg Pentoxifylline tablets.

4-week Interval Treatment Period 2: 4 weeks of 2 x daily (including weekends) 600 mg Pentoxifylline tablets.

Other names: Trental®

Placebo to Pentoxifylline oral

Drug

4-week Daily Treatment Period 1: 4 weeks of 2 x daily (including weekends) matching Placebo to Pentoxifylline tablets.

4-week Interval Treatment Period 2: 4 weeks of 2 x daily (including weekends) matching Placebo to Pentoxifylline tablets.

Placebo to Alprostadil (Prostaglandin E1) intravenous

Drug

4-week Daily Treatment Period 1: 4 weeks of 1 x daily intravenous infusion of Placebo in 50 - 250 ml physiological saline solution over 2 hours.

4-week Interval Treatment Period 2: 4 weeks of 2 x weekly intravenous infusion of Placebo in 50 - 250 ml physiological saline solution over 2 hours.

Primary outcomes

  1. Ratio of Pain-free Walking Distance After Period 2 in Comparison With the Findings at Baseline

    Time frame: From Baseline to the end of 4 weeks of Interval Treatment (Period 2)

    The ratio of pain-free walking distance was calculated by the pain-free walking distance after Period 2 divided by the pain-free walking distance at Baseline with determination of pain-free walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  2. Ratio of Pain-free Walking Distance After Period 3 in Comparison With the Findings at Baseline

    Time frame: From Baseline to the end of 6-months Follow-up (Period 3)

    The ratio of pain-free walking distance was calculated by the pain-free walking distance after Period 3 divided by the pain-free walking distance at Baseline with determination of pain-free walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  3. Ratio of Pain-free Walking Distance After Period 1 in Comparison With the Findings at Baseline

    Time frame: From Baseline to the end of 4 weeks of Daily Treatment (Period 1)

    The ratio of pain-free walking distance was calculated by the pain-free walking distance after Period 1 divided by the pain-free walking distance at Baseline with determination of pain-free walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

Secondary outcomes

  1. Ratio of Pain-free Walking Distance After Period 2 in Comparison With the Findings After Period 1

    Time frame: From the end of 4 weeks of Daily Treatment (Period 1) to the end of 4 weeks of Interval Treatment (Period 2)

    The ratio of pain-free walking distance was calculated by the pain-free walking distance after Period 2 divided by the pain-free walking distance after Period 1 with determination of pain-free walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  2. Ratio of Pain-free Walking Distance After Period 3 in Comparison With the Findings After Period 1

    Time frame: From the end of 4 weeks of Daily Treatment (Period 1) to the end of 6-months Follow-up (Period 3)

    The ratio of pain-free walking distance was calculated by the pain-free walking distance after Period 3 divided by the pain-free walking distance after Period 1 with determination of pain-free walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  3. Ratio of Pain-free Walking Distance After Period 3 in Comparison With the Findings After Period 2

    Time frame: From the end of 4 weeks of Interval Treatment (Period 2) to the end of 6-months Follow-up (Period 3)

    The ratio of pain-free walking distance was calculated by the pain-free walking distance after Period 3 divided by the pain-free walking distance after Period 2 with determination of pain-free walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  4. Ratio of Maximum Walking Distance After Period 1 in Comparison With the Findings at Baseline

    Time frame: From Baseline to the end of 4 weeks of Daily Treatment (Period 1)

    The ratio of maximum walking distance was calculated by the maximum walking distance after Period 1 divided by the maximum walking distance at Baseline with determination of maximum walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  5. Ratio of Maximum Walking Distance After Period 2 in Comparison With the Findings at Baseline

    Time frame: From Baseline to the end of 4 weeks of Interval Treatment (Period 2)

    The ratio of maximum walking distance was calculated by the maximum walking distance after Period 2 divided by the maximum walking distance at Baseline with determination of maximum walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  6. Ratio of Maximum Walking Distance After Period 2 in Comparison With the Findings After Period 1

    Time frame: From the end of 4 weeks of Daily Treatment (Period 1) to the end of 4 weeks of Interval Treatment (Period 2)

    The ratio of maximum walking distance was calculated by the maximum walking distance after Period 2 divided by the maximum walking distance after Period 1 with determination of maximum walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  7. Ratio of Maximum Walking Distance After Period 3 in Comparison With the Findings at Baseline

    Time frame: From Baseline to the end of 6-months Follow-up (Period 3)

    The ratio of maximum walking distance was calculated by the maximum walking distance after Period 3 divided by the maximum walking distance at Baseline with determination of maximum walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  8. Ratio of Maximum Walking Distance After Period 3 in Comparison With the Findings After Period 1

    Time frame: From the end of 4 weeks of Daily Treatment (Period 1) to the end of 6-months Follow-up (Period 3)

    The ratio of maximum walking distance was calculated by the maximum walking distance after Period 3 divided by the maximum walking distance after Period 1 with determination of maximum walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  9. Ratio of Maximum Walking Distance After Period 3 in Comparison With the Findings After Period 2

    Time frame: From the end of 4 weeks of Interval Treatment (Period 2) to the end of 6-months Follow-up (Period 3)

    The ratio of maximum walking distance was calculated by the maximum walking distance after Period 3 divided by the maximum walking distance after Period 2 with determination of maximum walking distances on the treadmill (12 % grade and 3 km/h). If a subject was not familiar with the treadmill, at least two test determinations were performed to accustom him/her to the treadmill. For all treadmill determinations the subject has been prevented from observing the treadmill display of the walking distance achieved.

  10. Changes in Quality of Life (as Measured With the PAVK 86 Questionnaire) From Baseline to the End of Period 1

    Time frame: From Baseline to the end of 4 weeks of Daily Treatment (Period 1)

    Scores for subscales were calculated by summing non-missing item scores ranging from 1 (not at all; best possible outcome) to 4 (extremely; worst possible outcome) divided by the number of non-missing items. Hence each subscale score ranges from 1 (best possible outcome) to 4 (worst possible outcome). For subscales 'Mood' and 'Treatment expectation' five items each had to be reversed in order. Additionally, subjects were asked to assess their general health and quality of life on an ordinal scale between 0 (very good) and 10 (very poor).

    Negative changes show a decrease from Baseline.

  11. Changes in Quality of Life (as Measured With the PAVK 86 Questionnaire) From Baseline to the End of Period 3

    Time frame: From Baseline to the end of 6-months Follow-up (Period 3)

    Scores for subscales were calculated by summing non-missing item scores ranging from 1 (not at all; best possible outcome) to 4 (extremely; worst possible outcome) divided by the number of non-missing items. Hence each subscale score ranges from 1 (best possible outcome) to 4 (worst possible outcome). For subscales 'Mood' and 'Treatment expectation' five items each had to be reversed in order. Additionally, subjects were asked to assess their general health and quality of life on an ordinal scale between 0 (very good) and 10 (very poor).

    Negative changes show a decrease from Baseline.

Sponsors and collaborators

Lead sponsor

UCB Pharma

Industry

Registry information

Official study title

Intravenous Prostaglandin E1 Treatment in Outpatients With Intermittent Claudication

Important dates

Study start
2001
Primary completion
2011
Study completion
2011
First posted
Dec 21, 2010
Registry last updated
Oct 27, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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