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BSF 208075

Phase 4FDA approved 2007

Pulmonary Hypertension | Small molecule | Cardiovascular |Gilead Sciences, Inc.|Trials Updated: Sep 30, 2020

BSF 208075 development status

FDA approval Jun 15, 2007 as Letairis
Approval holderGilead
ApplicationNDA022081
Highest phase Phase 4 (NCT01051960)
Phase scored for GILDPhase 2
Registered trials 27 across 12 sponsors since Sep 2002

Label indication Letairis is indicated for the treatment of pulmonary arterial hypertension (PAH) (WHO Group 1) in adult patients: To improve exercise ability and delay clinical worsening. In combination with tadalafil to reduce the risks of disease progression and hospitalization for worsening PAH, and to improve exercise ability [see Clinical Studies (14.2) ]. FDA label

BSF 208075 target and mechanism

ModalitySmall molecule

Also known as ambrisentan, Letairis, Volibris

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindUNCONTROLLED
Total Trials11
Total Enrollment1,683

FDA Designations

No designations recorded

BSF 208075 clinical trials

BSF 208075 · 11 trials · 4 indications

Phase 3 6Phase 2 4Phase 1 1
NCT00777920Study of Ambrisentan in Participants With Pulmonary HypertensionPulmonary Hypertension
COMPLETED140 Analytics
NCT00380068Safety and Efficacy Study of Ambrisentan in Subjects With Pulmonary HypertensionPulmonary Hypertension
COMPLETED224 Analytics
NCT00578786A Long Term Study of Ambrisentan in Pulmonary Arterial Hypertension Subjects Having Completed AMB-320 (NCT00423748) or AMB-321 (NCT00423202)Pulmonary Arterial Hypertension
COMPLETED383 Analytics
NCT00091598ARIES - Ambrisentan in Patients With Moderate to Severe Pulmonary Arterial Hypertension (PAH)Pulmonary Hypertension
COMPLETED372 Analytics
NCT00423202A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Assess Safety and Efficacy of Ambrisentan in Subjects With Pulmonary Arterial Hypertension.Pulmonary Arterial Hypertension
COMPLETED186 Analytics
NCT00423748Study to Assess Safety and Efficacy of Ambrisentan in Subjects With Pulmonary Arterial Hypertension.Pulmonary Arterial Hypertension
COMPLETED186 Analytics
PHASE3COMPLETED
Study of Ambrisentan in Participants With Pulmonary Hypertension
Pulmonary HypertensionUnlock trial analytics
PHASE3COMPLETED
Safety and Efficacy Study of Ambrisentan in Subjects With Pulmonary Hypertension
Pulmonary HypertensionUnlock trial analytics
PHASE3COMPLETED
A Long Term Study of Ambrisentan in Pulmonary Arterial Hypertension Subjects Having Completed AMB-320 (NCT00423748) or AMB-321 (NCT00423202)
Pulmonary Arterial HypertensionUnlock trial analytics
PHASE3COMPLETED
ARIES - Ambrisentan in Patients With Moderate to Severe Pulmonary Arterial Hypertension (PAH)
Pulmonary HypertensionUnlock trial analytics
PHASE3COMPLETED
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Assess Safety and Efficacy of Ambrisentan in Subjects With Pulmonary Arterial Hypertension.
Pulmonary Arterial HypertensionUnlock trial analytics
PHASE3COMPLETED
Study to Assess Safety and Efficacy of Ambrisentan in Subjects With Pulmonary Arterial Hypertension.
Pulmonary Arterial HypertensionUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Adverse Events (AEs) Associated With Long-Term Exposure to Ambrisentan
First dose date of study drug up to the date of last dose plus 30 days (Maximum: approximately 550 weeks)
Change From Baseline to Week 24 in 6 Minute Walk Distance (6MWD)
Baseline to Week 24
Frequently Reported (15% or More Overall) Adverse Events by Severity
Baseline to Week 295

The primary endpoint of this study is the incidence and severity of adverse events associated with long-term exposure to AMB in participants with PAH. The most frequently occurring adverse events (occurring in 15% or more of the participants in the combined group) are presented, by severity, that began after entering this extension study. Adverse events that were serious are included. Adverse events are coded according to the Medical Dictionary for Regulatory Activities (MedDRA) Version 6.1 and are presented by MedDRA preferred term. Severity was graded as follows: mild (AE did not interfere with routine activities; subject may have experienced slight discomfort), moderate (AE interfered with routine activities; subject may have experienced significant discomfort), and severe (AE made it impossible to perform routine activities; subject may have experienced intolerable discomfort or pain).

Serum Aminotransferases Relative to the Upper Limit of the Normal Range (ULN)
Baseline to Week 295

The number of participants with serum alanine aminotransferase (ALT) and serum aspartate aminotransferase (AST) falling into the following categories: \>3.0 and \</= 5.0 x ULN, \>5.0 and \</= 8.0 x ULN, and \>8.0 x ULN. Includes the highest value per participant across all visits as well as values from early termination visits.

Change from baseline at Week 12 of six minute walk distance
Change from baseline in the six-minute walk distance evaluated after 12 weeks of therapy compared to placebo.
Change in 6 minute walk distance.
4 months of therapy
The Incidence of Confirmed Serum Alanine Aminotransferase (ALT) or Aspartate Aminotransferase (AST) Concentrations > 3 x the Upper Limit of Normal (ULN) Considered to be Related to Ambrisentan and Resulted in Discontinuation of Study Drug.
Week 12

The number of participants in the safety analysis set with confirmed serum ALT or AST concentrations \> 3 x ULN during 12 weeks of ambrisentan therapy that were related to ambrisentan and resulted in discontinuation of study drug. Safety analysis set included all participants who received at least 1 dose of study drug.

Number of Participants With Pulmonary Arterial Hypertension (PAH) Who Completed the Phase II NCT00046319 Study and Who Experienced Severe Adverse Events (AEs) During Long-term Ambrisentan Exposure
Week 24 (AMB-220-E baseline) to Week 334

The number of participants in the AMB-220-E analysis set who experienced AEs (including serious AEs) of severe severity (ie, made it impossible to perform routine activities and the subject may have experienced intolerable discomfort or pain) that began after entering AMB-220-E (treatment-emergent AEs) and that occurred in more than 1 participant are summarized by dose group. The AMB-220-E analysis set consisted of all participants who received at least 1 dose of study drug during the AMB-220-E study.

Number of Participants With PAH Who Completed the Phase II NCT00046319 Study and Who Experienced AEs of Moderate Severity During Long-term Ambrisentan Exposure
Week 24 (AMB-220-E baseline) to Week 329.3

The number of participants in the AMB-220-E analysis set who experienced AEs (including serious AEs) of moderate severity (ie, interfered with routine activities and subject may have experienced significant discomfort) that began after entering AMB-220-E (treatment-emergent AEs) and that occurred in more than 1 participant are summarized by dose group. The AMB-220-E analysis set consisted of all participants who received at least 1 dose of study drug during the AMB-220-E study.

Number of Participants With PAH Who Completed the Phase II NCT00046319 Study and Who Experienced AEs of Mild Severity During Long-term Ambrisentan Exposure
Week 24 (AMB-220-E baseline) to Week 329.3

The number of participants in the AMB-220-E analysis set who experienced AEs (including serious AEs) of mild severity (ie, did not interfere with routine activities and the subject may have experienced slight discomfort) that began after entering AMB-220-E (treatment-emergent AEs) and that occurred in more than 1 participant are summarized by dose group. The AMB-220-E analysis set consisted of all participants who received at least 1 dose of study drug during the AMB-220-E study.

Change from baseline to Week 12 in six minute walk distance
Safety and Tolerability of ambrisentan in patients with sickle cell disease measured by physical exam, vital signs, blood and urine testing, ECG (specified visits), concomitant medication review, adverse events review
Day 1 (Baseline) through Day 113

Secondary Endpoints

Change From Baseline to Week 24 in Borg Dyspnea Index
Baseline to Week 24
Change From Baseline to Week 48 in Borg Dyspnea Index
Baseline to Week 48
Percent Change From Baseline to Week 24 in B-type Natriuretic Peptide (BNP)
Baseline to Week 24
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
AmbrisentanEXPERIMENTALParticipants will receive ambrisentan 2.5 mg, 5 mg or 10 mg tablet orally once daily until such time as the investigator or participant chooses to stop ambrisentan treatment, ambrisentan becomes commercially available, or the sponsor stops the study.
sarcoidosis associated pulmonary hypertensionEXPERIMENTALsarcoidosis associated pulmonary hypertension
TreatmentEXPERIMENTALAmbrisentan 5 mg PO daily
PlaceboPLACEBO_COMPARATOROne inactive pill PO daily

Interventions

NameTypeDescription
AmbrisentanDRUGTablet administered orally once daily
BSF 208075DRUG -
PlaceboDRUGOne inactive pill daily for twelve weeks
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites46

Key Inclusion Criteria: * Men and women with pulmonary hypertension who are discontinuing a clinical study of ambrisentan due to study closure by the sponsor. Eligible participants are those participating in countries where ambrisentan is not yet commercially available. Participants participating i...

Countries:United StatesArgentinaAustraliaBrazilCanadaChileMexicoRussiaUkraineBelgiumFranceGermanyItaly
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Frequently asked questions about BSF 208075

What is BSF 208075 used for?

BSF 208075 is an investigational small molecule being studied for the treatment of pulmonary hypertension, specifically pulmonary arterial hypertension. It is being developed by Gilead Sciences, Inc. (NASDAQ: GILD) and is currently in Phase 2 clinical development.

What does BSF 208075 target?

BSF 208075 is a small molecule being developed for pulmonary hypertension. Its specific molecular target has not been disclosed in available clinical trial information. The drug is being evaluated for its effects on exercise capacity in patients with pulmonary arterial hypertension.

Who makes BSF 208075?

BSF 208075 is being developed by Gilead Sciences, Inc., a biopharmaceutical company traded on NASDAQ under the ticker symbol GILD. The drug is currently in Phase 2 clinical development for the treatment of pulmonary hypertension.

What phase is BSF 208075 in?

BSF 208075 is in Phase 2 clinical development. It is an investigational drug and has not been approved by regulatory authorities. A Phase 2 clinical trial evaluating the drug in patients with pulmonary arterial hypertension has been completed.

What clinical trials is BSF 208075 in?

BSF 208075 has been studied in one completed Phase 2 clinical trial, identified as NCT00046319. This trial evaluated exercise capacity in 60 patients with pulmonary arterial hypertension and was conducted in the United States, Australia, Belgium, France, Germany, and Italy.

Is BSF 208075 the same as ambrisentan?

BSF 208075 is the investigational name for the drug also known as ambrisentan. It is being developed by Gilead Sciences for the treatment of pulmonary arterial hypertension. The drug is a small molecule and has completed a Phase 2 clinical trial.