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Pociredir for Sickle Cell Disease

No longer recruiting at 5 trial locations
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Overseen ByCall Center
Age: 18+
Sex: Any
Trial Phase: Phase 1
Sponsor: Fulcrum Therapeutics
Must be taking: Crizanlizumab, L-glutamine
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial tests Pociredir, a new tablet for people with Sickle Cell Disease (SCD). The researchers aim to understand how the body absorbs the drug with or without food. Participants will be divided into two groups: one taking the tablet on an empty stomach and the other after a high-fat meal. People with SCD who have stable health and no plans for major surgeries soon might be a good fit. As a Phase 1 trial, this research focuses on understanding how Pociredir works in people, offering participants the opportunity to be among the first to receive this new treatment.

Do I need to stop taking my current medications for the trial?

The trial does not specify if you need to stop all current medications, but you can continue crizanlizumab and L-glutamine if you've been on a stable dose for at least 6 months. However, you cannot take medications that affect certain liver enzymes or proteins within 14 days before starting the trial.

Is there any evidence suggesting that Pociredir is likely to be safe for humans?

Research has shown that Pociredir is generally safe for people with sickle cell disease. One study found Pociredir to be safe and showed early signs of efficacy. Another study reported that Pociredir was well-tolerated at doses of 12 mg and 20 mg. These findings suggest that Pociredir is safe for humans, with no major safety issues reported so far.12345

Why do researchers think this study treatment might be promising?

Pociredir is unique because it offers a new approach to treating sickle cell disease by potentially improving the absorption and effectiveness of the medication through its administration under different dietary conditions. Unlike traditional treatments like hydroxyurea or blood transfusions, Pociredir is being tested in both fasted and fed states, which could optimize how the body absorbs the drug. Researchers are excited about this treatment because it could lead to more personalized and effective dosing strategies, ultimately improving patient outcomes and quality of life.

What evidence suggests that Pociredir might be an effective treatment for Sickle Cell Disease?

Research has shown that Pociredir holds promise for treating Sickle Cell Disease. Studies have found that Pociredir increases fetal hemoglobin (HbF), which can help lessen the disease's symptoms. One study reported that patients taking Pociredir experienced an average HbF increase of 12.2% over 12 weeks. Another study found that more than half of the participants reached HbF levels associated with fewer sickle cell crises. In this trial, participants will receive Pociredir under different conditions: one group under fasted conditions and another after a high-fat breakfast. These findings suggest that Pociredir could effectively improve outcomes for people with Sickle Cell Disease.36789

Are You a Good Fit for This Trial?

This trial is for people with sickle cell disease who have certain blood counts within a safe range. Women of childbearing age must use two forms of birth control or abstain, and men must use condoms or abstain during the study and for 90 days after.

Inclusion Criteria

3. Absolute reticulocyte count \> 100 × 10\^9/L
* Documented SCD at the time of screening, as confirmed through review of medical records or high-performance liquid chromatography (HPLC)/electrophoresis.
* Participant, who if female and of childbearing potential, agrees to use 2 effective methods of contraception, one which must be highly effective, or practice abstinence starting at the time of the ICF signing to 90 days after the last dose of study drug, and, who if male, agrees to use condoms or practice abstinence from the time of ICF signing to 90 days after the last dose of study drug.
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Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks
1 visit (in-person)

In-patient Confinement

Participants are admitted to the clinical site, receive a single dose of pociredir, and remain in-clinic for pharmacokinetic sampling

4 days
Continuous in-patient stay

Outpatient and End of Study

Participants return for outpatient visit and end of study visit for further pharmacokinetic sampling

7-10 days
2 visits (in-person)

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • Pociredir

Trial Overview

The study tests how the body processes a single dose of Pociredir (a tablet) in people with sickle cell disease, comparing results when taken on an empty stomach versus after eating.

How Is the Trial Designed?

2

Treatment groups

Experimental Treatment

Group I: Fed CohortExperimental Treatment1 Intervention
Group II: Fasted CohortExperimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Fulcrum Therapeutics

Lead Sponsor

Trials
8
Recruited
680+
Headquarters
Cambridge, United States

Citations

Fulcrum Therapeutics Announces Positive 12-Week Results ...

“The 12-week data from the complete 20 mg cohort demonstrated robust and rapid HbF induction and progression toward pan-cellular distribution, ...

Pociredir, a novel oral once-daily fetal hemoglobin inducer ...

Treatment with 12 mg QD resulted in rapid, sustained, and clinically meaningful increases in HbF in the majority of red cells, along with ...

Pociredir, a novel oral once-daily fetal hemoglobin inducer: ...

Increased expression of fetal hemoglobin (HbF) can counteract hemoglobin S polymer formation in sickle cell disease (SCD), reducing symptoms and improving ...

PIONEER Trial Update: Pociredir Shows Potential to ...

All patients in the 20-mg cohort achieved an absolute increase in HbF of at least 6.5%. Seven patients (58%) achieved absolute HbF levels of at ...

SCD therapy pociredir shows stronger results at higher dose

More than half of the participants treated with the 20 mg dose achieved HbF levels of 20% or higher. These levels are associated with zero ...

Pociredir PIONEER Study: 20 mg Cohort Data Update

... sickle cell disease (SCD), pociredir's ability to induce fetal hemoglobin ... PIONEER 12mg and 20mg Safety Data to Date: Generally Well-tolerated.

Phase 1b, Open-label, Multiple-Dose Study Evaluating Safety ...

We report on an ongoing phase 1b, open-label, multicenter, international study evaluating the safety, PK, and PD of oral pociredir in patients with SCD.

Safety, Tolerability, Pharmacokinetics and Pharmacodynamics ...

This is a study to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of Pociredir in participants with sickle cell disease.

Pociredir well tolerated, shows promising activity in SCD trial

Pociredir 12 mg dose has shown favorable safety and signs of efficacy in a Phase 1b trial of sickle cell disease (SCD).