Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Improving adherence to inhaled iloprost for pulmonary arterial hypertension

Official title: AIRDROP: Can we Improve Adherence to Inhaled Treatment for Pulmonary Arterial Hypertension?

Run by University of Sao Paulo General Hospital · NCT07457762 · Data updated 2026-11-12

This project will test whether pharmacist-led inhaler training and adherence support helps adults with pulmonary arterial hypertension who use inhaled iloprost stick to their treatment and reduce side effects.

More Pulmonary Arterial Hypertension (PAH) trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment72 (estimated)
SponsorUniversity of Sao Paulo General Hospital
Academic / other
Locations1 site (São Paulo, São Paulo)
StatusRecruiting
StartedMay 1, 2025
Main results expectedApril 28, 2026
Study endsDecember 28, 2026
Registry record updatedMarch 9, 2026
Trial IDNCT07457762 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18) with invasively confirmed PAH who are being treated with inhaled iloprost at the Heart Institute of the University of São Paulo and who can perform the 6-minute walk test are ideal candidates.

Probably not a fit

Patients not using inhaled iloprost, those treated outside the referral center, or those unable to perform the 6-minute walk test are unlikely to benefit from this intervention.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults with invasively confirmed PAH who are using inhaled iloprost at a referral center will receive pharmacist-delivered guidance on inhaler technique and medication adherence. The intervention includes hands-on training, counseling about side-effect management, and periodic follow-up to reinforce correct use and dosing frequency. Study outcomes will include measures of medication adherence, inhalation technique, adverse events, and functional status. The goal is to see if pharmacist support can improve real-world use and tolerability of inhaled iloprost in PAH patients.

Why it matters

Potential benefit: If successful, patients could have better adherence to inhaled iloprost, fewer inhalation-related problems, and potentially improved functional outcomes.

How similar studies have gone: Pharmacist-led inhaler training has improved adherence and technique in asthma and COPD, but this specific approach is novel and under-studied in PAH.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* "Adult patients aged ≥ 18 years, treated at the referral center for PH management at the Heart Institute of the University of São Paulo Medical School, with an invasive confirmed diagnosis of PAH (mean pulmonary arterial pressure \[mPAP\] greater than 20 mmHg at rest, pulmonary vascular resistance \[PVR\] equal to or greater than 2 Wood units, and pulmonary capillary wedge pressure \[PCWP\] equal to or less than 15 mmHg), and who have been using Iloprost.

Exclusion Criteria:

* Patients who are unable to perform the 6-minute walk test (6MWT) or who have experienced gastrointestinal bleeding within the 12 weeks prior to the start of the study will be excluded.

Where it's running

  • Incor HCFMUSP
    São Paulo, São Paulo, Brazil
    Recruiting

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.