Investigating PF-07868489 in healthy adults and those with pulmonary arterial hypertension

A PHASE 1/2, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED STUDY TO EVALUATE THE SAFETY, TOLERABILITY, PHARMACOKINETICS, AND PHARMACODYNAMICS OF SINGLE ESCALATING DOSES OF PF-07868489 IN HEALTHY ADULT PARTICIPANTS AND, ADDITIONALLY, CLINICAL ACTIVITY OF REPEAT DOSES IN PARTICIPANTS WITH PULMONARY ARTERIAL HYPERTENSION

Phase1; Phase2 Interventional Pfizer · NCT06137742

This study is testing a new drug called PF-07868489 to see if it's safe and effective for people with pulmonary arterial hypertension and healthy adults.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Enrollment90 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorPfizer Industry-sponsored
Locations14 sites (Anaheim, California and 13 other locations)
Trial IDNCT06137742 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the safety, tolerability, and pharmacokinetics of the investigational drug PF-07868489 in both healthy adults and individuals diagnosed with pulmonary arterial hypertension (PAH). It consists of two parts: the first part is a single ascending dose study in healthy participants, while the second part is a randomized, double-blind, placebo-controlled study assessing the drug's effects over 24 weeks in PAH patients. Participants will receive either the study medication or a placebo to determine the drug's impact on their condition.

Who should consider this trial

Good fit: Ideal candidates include adults diagnosed with pulmonary arterial hypertension who are stable on standard care therapies.

Not a fit: Patients with significant comorbidities or those not currently receiving standard supportive therapy for pulmonary hypertension may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to a new treatment option for patients with pulmonary arterial hypertension.

How similar studies have performed: Other studies have shown promise in evaluating new treatments for pulmonary arterial hypertension, making this approach potentially beneficial.

Eligibility criteria

Show full inclusion / exclusion criteria
Key Inclusion Criteria Part A:

* overtly healthy
* Body mass index (BMI) of 16 to 32 kg/m2; and a total body weight \>50 kg.

Key Exclusion Criteria Part A:

* clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, infections or allergic disease.
* smoking more than 10 cigarettes (or equivalent) per day or smoking history ≥10 pack-years.

Key Inclusion Criteria Part B:

* diagnosis of pulmonary arterial hypertension (PAH)
* stable dose of standard of care PAH vasodilators
* BMI 16 to 32 kg/m2; and a total body weight \>45 kg.
* 6MWD ≥ 150 and ≤ 450.
* Pre-randomization RHC documenting a minimum of PVR ≥ 400 dyn ∙sec/cm5.

Key Exclusion Criteria Part B:

* Any medical or psychiatric condition or laboratory abnormality.
* Stopped receiving pulmonary hypertension chronic general supportive therapy 90 days prior to Day 1.
* Pulmonary capillary wedge pressure \> 15 mmHg on right heart catheterization (RHC) conducted during Screening.
* History of severe allergic or anaphylactic reaction or hypersensitivity to recombinant proteins or excipients in investigational product.
* Major surgery within 8 weeks prior to randomization.
* Participants who smoke more than 10 cigarettes (or equivalent) per day or has a smoking history ≥10 pack-years.

Where this trial is running

Anaheim, California and 13 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Pulmonary Arterial Hypertensionpulmonaryhigh lung artery pressure
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.