Tailoring sickle cell drug doses: a new hope for nigerian patients
NCT ID NCT07543289
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how genetic differences affect the way Nigerian sickle cell patients respond to hydroxyurea, a common treatment. Researchers will monitor 100 patients to build a computer model that predicts the best dose for each person. The goal is to reduce side effects and improve outcomes like fewer pain crises.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Hydroxyurea
- What this could lead to
- If successful, this could lead to personalized hydroxyurea dosing guidelines for Nigerian sickle cell patients, making treatment safer and more effective.
- What could go wrong
- This is an early-stage observational study with only 100 participants, so results may not apply to all patients. The models need further validation before clinical use.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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Mar 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
The study population for this research comprises patients diagnosed with sickle cell disease (SCD) of Nigerian descent, recruited from selected clinical centres within Nigeria ( Sickle Cell Foundation, Ibadan and the Obafemi Awolowo University Teaching Hospital Complex). They will be consented SCD adult patients who have been on hydroxyurea at least six months before study commencement or who are willing to commence hydroxyurea therapy. In both instances, they will be SCD patients whose genetic profile for the major metabolising enzymes are known.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients with confirmed diagnosis of sickle cell disease (SCD) (e.g., HbSS, HbSC) and of Nigerian descent. * Patients currently on hydroxyurea therapy or hydroxyurea-naive patients who are willing to commence hydroxyurea therapy. * Patients whose genotypic profile for the major metabolising enzymes has been previously done e.g. CYP2D6. * Patients who consent to be part of the study Exclusion Criteria: * Patients with severe comorbidities that may significantly alter pharmacokinetics (e.g., advanced renal or hepatic failure) * Patients in acute crisis at the time of sampling. * Patients with documented poor adherence to other medications previously on. * Pregnant females and lactating mothers.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Obafemi Awolowo University Teaching Hospital Complex
Ile-Ife, Osun State, 220282, Nigeria
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can adding common pain drugs reduce morphine needs in sickle cell crises?
- Gene editing offers hope for a One-Time sickle cell cure
- Tiny biochip could reveal sickle cell severity
- Can a milder transplant cure sickle cell and thalassemia in adults?
- Can an antioxidant supplement calm sickle cell blood cells?
- Can a softer transplant cure sickle cell disease?