Osivelotor clinical trials
Osivelotor is named as an intervention in 2 current clinical trials in our UK, USA, India, Brazil and Belgium registers. 2 are recruiting patients now. The most common phase is Phase 2/3. The lead sponsor is Pfizer. The most-studied condition is Sickle Cell Disease.
Patient leaflets for Osivelotor
The package leaflet is the official guide for patients that comes with every medicine. These links go to the regulators that publish it.
- UKUnited Kingdom: Search MHRA ProductsPatient information leaflets and SmPCs for UK-licensed products.
- USUnited States: Search DailyMedFDA-approved labels, including patient and medication guides.
Leaflets differ between brands and countries; always read the one that comes with your own medicine. This is regulatory information, not medical advice.
Trials by status
Trials by phase
Clinical trials of Osivelotor
2 trials| Study | Phase | Status | Lead sponsor | Registers |
|---|---|---|---|---|
|
A Phase 2/3 Study of Osivelotor in Adult and Adolescent Participants With SCD
NCT05431088 · Sickle Cell Disease
|
Phase 2/3 | Recruiting | Pfizer | UK, USA, India, Brazil |
|
A Study to Learn How Different Preparations of Osivelotor Taste and Enter the Blood With Food or Liquids or With an Antacid in Healthy Adults
NCT06507904 · ClinicalTrials.gov ↗ · Healthy
|
Phase 1 | Recruiting | Pfizer | Belgium |
Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Trial titles and statuses are copied from the registry as published.
Conditions studied with Osivelotor
2 conditionsSponsors
lead sponsor per trial| Lead sponsor | Trials |
|---|---|
| Pfizer | 2 |
By country register
| Register | Trials | Recruiting |
|---|---|---|
| Clinical trials in UK | 1 | 1 |
| Clinical trials in USA | 1 | 1 |
| Clinical trials in India | 1 | 1 |
| Clinical trials in Brazil | 1 | 1 |
| Clinical trials in Belgium | 1 | 1 |
A trial with sites in more than one country appears in each of those registers.
Related compounds
Questions about Osivelotor trials
How many clinical trials are testing Osivelotor?
2 current trials in our UK, USA, India, Brazil and Belgium registers name Osivelotor (also registered as PF-07940367 or GBT021601) as a drug or biological intervention, as of the registry sync on 22 October 2026. Completed and withdrawn studies are not counted.
Are Osivelotor trials recruiting patients?
Yes. 2 of the 2 trials are recruiting: 1 with sites in UK, 1 with sites in USA, 1 with sites in India, 1 with sites in Brazil and 1 with sites in Belgium. Eligibility and site contacts are on each trial's record. Only the study team can confirm whether a patient is eligible.
Who sponsors Osivelotor clinical trials?
The lead sponsor is Pfizer. The number in brackets is how many trials each organisation leads.
Where does this information come from?
Every trial, status, phase and sponsor on this page is copied from public ClinicalTrials.gov records by a daily sync. Nothing here describes how Osivelotor works or whether it is effective, and it is not medical advice.
How this page is built
Everything on this page is copied from public ClinicalTrials.gov registry records — it is not written from memory, and nothing here describes how Osivelotor works or whether it is effective. Each trial links to its own record so you can check it yourself.
- ClinicalTrials.gov (U.S. National Library of Medicine) ↗ Trial IDs, titles, intervention names and synonyms, phase, overall status, lead sponsor and conditions for every trial on this page
This page is built automatically: a daily sync job reads the registry records behind our country trial registers, collects every trial that lists Osivelotor (or a registered synonym) as a drug or biological intervention, and tabulates the registry fields directly. Placebos and generic comparators are excluded. There is no AI drafting and no per-compound editorial pass, and the page has not been clinically reviewed. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The ClinicalTrials.gov data on this page was last retrieved on 22 Oct 2026. How every register is built: methodology · fixes we have made: corrections log.