We're building a better ClinicalTrials.gov. Check it out and tell us what you think!
ClinicalTrials.gov Menu

A Study Evaluating the Long-Term Efficacy and Safety of Ralinepag in Subjects With PAH Via an Open-Label Extension

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT03683186
Recruitment Status : Enrolling by invitation
First Posted : September 25, 2018
Last Update Posted : January 20, 2023
Information provided by (Responsible Party):
United Therapeutics

Brief Summary:
Study ROR-PH-303, ADVANCE EXTENSION, is an open-label extension (OLE) study for participants with WHO Group 1 PAH who have participated in another Phase 2 or Phase 3 study of ralinepag.

Condition or disease Intervention/treatment Phase
PAH Pulmonary Hypertension Pulmonary Arterial Hypertension Hypertension Connective Tissue Diseases Familial Primary Pulmonary Hypertension Vascular Diseases Cardiovascular Diseases Hypertension, Pulmonary Lung Diseases Respiratory Tract Disease Drug: Ralinepag Phase 3

Detailed Description:

Study ROR-PH-303 is a multicenter, open-label extension (OLE) study for subjects with WHO Group 1 PAH who have participated in another Phase 2 or Phase 3 study of ralinepag and who qualify for entry based upon participation in the prior study. Subjects who discontinue participation in a prior study due to safety issues related to study medication or who fail to complete study procedures will not be eligible to enter Study ROR-PH-303. Subjects who meet all OLE entry criteria will be enrolled and will receive ralinepag in addition to their pre-existing PAH disease-specific background therapy.

For subjects who are enrolled from an ongoing double-blind Phase 2 or Phase 3 ralinepag study, a 16-week blinded Dose Titration Period will be completed following enrollment into the OLE. Subjects previously on ralinepag will continue on the same dose during the Dose Titration Period as received in the original study and will also initiate placebo treatment in the OLE.

Subjects who are enrolled from a non-blinded study or another OLE will not participate in the blinded Dose Titration Period in Study ROR-PH-303 but will be enrolled directly into the Treatment Period and continue on the dose of ralinepag received in the original study.

All subjects will receive ralinepag in the OLE study until premature discontinuation of ralinepag due to an AE/serious adverse event (SAE) or other reason, marketing approval of ralinepag is granted in the region in which the study is conducted, or the study is discontinued by the Sponsor.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 1000 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase 3 Open-label Extension (OLE) Study to Evaluate the Long-term Safety and Efficacy of Ralinepag in Subjects With World Health Organization (WHO) Group 1 Pulmonary Arterial Hypertension (PAH)
Actual Study Start Date : September 23, 2019
Estimated Primary Completion Date : September 2024
Estimated Study Completion Date : September 2024

Arm Intervention/treatment
Experimental: Ralinepag
Ralinepag once daily extended-release tablets (oral) 50, 250, and 400 mcg titrated to the highest tolerated dose.
Drug: Ralinepag
Other Name: APD811

Primary Outcome Measures :
  1. Number of subjects with treatment-emergent adverse events [Safety and Tolerability] [ Time Frame: Up to 6 years ]
    The safety and tolerability of ralinepag will be evaluated by the Number of subjects with treatment-emergent adverse events

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Evidence of a personally signed and dated informed consent form indicating that the subject has been informed of all pertinent aspects of the study prior to initiation of any study-related procedures.
  2. Subjects who are willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures.
  3. Completed the protocol-defined Study Drug Termination Visit or End of Study Visit procedures in the preceding ralinepag study.
  4. Both male and female subjects agree to use a medically acceptable method of contraception throughout the entire study period from informed consent through the 30 day Follow-up Visit, if the possibility of conception exists. Eligible male and female subjects must also agree not to participate in a conception process (i.e., actively attempt to become pregnant or to impregnate, sperm donation, in vitro fertilization) during the study and for 30 days after the last dose of ralinepag.

Exclusion Criteria:

  1. Subjects who prematurely discontinued investigational medicinal product (IMP) due to a drug-related AE/SAE or tolerability issue in the preceding ralinepag study in which they were enrolled, or subjects who did not complete all protocol defined study procedures at a Study Drug Termination Visit or End of Study Visit in the preceding ralinepag study.
  2. Subjects who withdrew consent during participation in another ralinepag study.
  3. Female subjects who wish to become pregnant or who have a positive pregnancy test on Day 1 (OLE Entry Visit), or are lactating or breastfeeding.
  4. Subjects who have undergone lung or heart/lung transplant or the initiation of long-term parenteral or inhaled therapy with a prostacyclin during the time since participation in their original ralinepag study.
  5. Subjects who had an emergency unblinding procedure in a prior Phase 2 or 3 study.

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): NCT03683186

Show Show 194 study locations
Sponsors and Collaborators
United Therapeutics
Layout table for additonal information
Responsible Party: United Therapeutics
ClinicalTrials.gov Identifier: NCT03683186    
Other Study ID Numbers: ROR-PH-303
APD811-303 ( Other Identifier: Arena Pharmaceuticals )
First Posted: September 25, 2018    Key Record Dates
Last Update Posted: January 20, 2023
Last Verified: January 2023

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by United Therapeutics:
Connective Tissue Disease-Associated
6 Minute Walk Test
6 Minute Walk Distance
Pulmonary Vascular Resistance
Right Ventricular Function
Additional relevant MeSH terms:
Layout table for MeSH terms
Lung Diseases
Hypertension, Pulmonary
Pulmonary Arterial Hypertension
Familial Primary Pulmonary Hypertension
Respiratory Tract Diseases
Cardiovascular Diseases
Vascular Diseases
Connective Tissue Diseases