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Vitamin B7 could help doctors see where transfused platelets go

NCT ID NCT07513532

Knowledge-focused Sponsor: Bloodworks Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jul 31, 2026 · Updated 2 times

Summary

This study in 12 healthy volunteers tests whether biotin (vitamin B7) can be used to label platelets so they can be tracked after transfusion. Platelets are collected, labeled with biotin, stored for 3 days, then a small radioactive tag is added before returning them to the donor. Blood samples will measure how long the labeled platelets survive in circulation.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Biotin-labeled platelets
What this could lead to
If successful, this could provide a safer, simpler way to track transfused platelets in the body, improving transfusion medicine.
What could go wrong
This is a very early, small study in only 12 healthy people. It tests a labeling method, not a treatment, so it won't directly help patients yet.

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.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

9 people

The number who actually took part.

Started

Apr 2026

Finished

Jul 2026

Lead sponsor

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.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: Normal health status Meet Bloodworks Northwest guidelines for autologous apheresis platelet donation Screening chemistry/hematology lab results within normal limits negative blood donor screening panel for HIV, Hepatitis B and hepatitis C agreeable to birth control measures during the study. Exclusion Criteria: Clinically significant acute or chronic disease Pregnant or lactating females Participation in a clinical research study within 30 days of the platelet collection Treatment with aspirin-containing meds within 7 days of platelet collection Treatment with platelet-inhibiting meds within 14 days of platelet collection Splenectomized donor Presence of anti-biotin or antiplatelet antibody at screening

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy volunteers

Contacts and locations

Locations

  • Bloodworks Northwest Research Institute

    Seattle, Washington, 98102, United States

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