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Sildenafil IV Bolus Study

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ClinicalTrials.gov Identifier: NCT00800592
Recruitment Status : Completed
First Posted : December 2, 2008
Last Update Posted : March 10, 2017
Information provided by (Responsible Party):

Brief Summary:
The objective of this study is to assess the safety, tolerability and pharmacokinetics of intravenous sildenafil (10 mg) administered as a bolus injection to patients with Pulmonary Arterial Hypertension already receiving and stable on oral Revatio 20 mg TID.

Condition or disease Intervention/treatment Phase
Hypertension, Pulmonary Drug: sildenafil Phase 1

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 12 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open Single Dose Study To Assess The Safety, Tolerability And Pharmacokinetics Of An Intravenous Bolus Dose (10 Mg) Of Sildenafil In Patients With Pulmonary Arterial Hypertension (PAH).
Study Start Date : October 2008
Primary Completion Date : December 2008
Study Completion Date : December 2008

Arm Intervention/treatment
Active Comparator: 10 mg sildenafil bolus
10 mg sildenafil bolus
Drug: sildenafil
10 mg sildenafil bolus

Primary Outcome Measures :
  1. Pharmacokinetic concentrations of plasma sildenafil and its metabolite [ Time Frame: 6 hours ]
  2. Adverse events [ Time Frame: 28 days ]
  3. Change in blood pressure and pulse rate from baseline (sitting and postural) [ Time Frame: 6 hours ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subjects (≥18 years old) receiving oral Revatio 20 mg TID for PAH within the approved indication (EU Summary of Product Characteristics) for a minimum of 1-month and who, in the investigator's opinion, have demonstrated good tolerability. Subjects with PAH who are nil by mouth for any reason (eg, elective surgery or medical procedure, TPN feeding, gastrointestinal disturbance etc) may also be included in the study provided they are haemodynamically stable (see Inclusion Criterion 4) and the 6 hour period of blood pressure and pulse monitoring in the study does not interfere with any planned medical or surgical intervention.
  • Evidence of a personally signed and dated informed consent document indicating that the subject has been informed of all pertinent aspects of the study.
  • Subjects who are willing and able to comply with scheduled visits, treatment plan and study tests and procedures.

Exclusion Criteria:

  • Any subject receiving Revatio outside ('off-label') of the current Summary of Product Characteristics (SmPC).
  • Other severe acute or chronic medical or psychiatric condition that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the subject inappropriate for entry into this study.
  • Introduction of potent CYP 3A4 inhibitors (eg, ketoconazole, itraconazole and ritonavir) within the previous 1 month of screening.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00800592

Pfizer Investigational Site
Bruxelles, Belgium, 1070
Sponsors and Collaborators
Study Director: Pfizer CT.gov Call Center Pfizer

Additional Information:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT00800592     History of Changes
Other Study ID Numbers: A1481262
First Posted: December 2, 2008    Key Record Dates
Last Update Posted: March 10, 2017
Last Verified: March 2017

Keywords provided by Pfizer:
Sildenafil, Revatio, PAH, IV, Bolus

Additional relevant MeSH terms:
Hypertension, Pulmonary
Vascular Diseases
Cardiovascular Diseases
Lung Diseases
Respiratory Tract Diseases
Sildenafil Citrate
Vasodilator Agents
Phosphodiesterase 5 Inhibitors
Phosphodiesterase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Urological Agents