NCT05588154 · National Cancer Institute (NCI)
Collection of Blood, Bone Marrow, Skin, Saliva, and Stool Samples From Healthy Volunteers Used for Comparative Analysis of Myeloid Malignancies
What this study is about
Background: Myelodysplastic syndromes (MDS) are disorders of blood stem cells that can develop into blood cancers. Treatment options are limited. To find better treatments, researchers need to better understand how MDS develops. To do that, they must be able to compare biospecimens from people with the disease to those of healthy people.
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Background: Myelodysplastic syndromes (MDS) are disorders of blood stem cells that can develop into blood cancers. Treatment options are limited. To find better treatments, researchers need to better understand how MDS develops. To do that, they must be able to compare biospecimens from people with the disease to those of healthy people. Objective: This study will create a database of biospecimens collected from healthy volunteers. Eligibility: Healthy people aged 18 and older. Design: Participants will be screened. They will have a physical exam with blood and urine tests. Up to 5 types of samples will be collected on 1 or more days within 1 month of screening: Blood: Blood will be drawn by inserting a needle into a vein. Saliva: Participants will scrape the insides of their cheeks with a brush. Stool: Participants will be given a container to collect stool at home. They will use a prepaid envelope to mail in the sample. Bone marrow: A sample of the soft tissue inside the bones will be drawn out. The area to be biopsied, usually the lower back, will be numbed. A needle will be inserted through a small cut to remove the sample. Participants' pain will be monitored; additional numbing medicine may be used. Skin: A piece of skin about 1/6 of an inch across will be cut away. Stitches may be used to close the wound. Participants will return to the clinic to have the stitches removed. Participants do not have to provide all of the samples listed. They will give each sample only once.
Primary outcome measures
create a database of analyzed biospecimens
Time frame: ongoing
Collection of biospecimens from healthy volunteers.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Age \>= 18 years old
- Healthy volunteers; the following confirmed by the Principal Investigator or designees based on recent (within 3 months before study intervention(s))
- medical history
- physical exam
- complete blood count (CBC) within the normal reference range per the reporting clinical laboratory, established published literature and reports, or as deemed acceptable by the medical team based on the age and condition of the volunteer consistent with established clinical standards.
- The ability of the participant to understand and the willingness to sign a written consent document.
Exclusion criteria
- \- Active illnesses, immunodeficiency, history of opportunistic infection, autoimmune disease, history of or active malignancy, prior organ, bone marrow, or peripheral blood stem cell transplant or antibiotic treatment within 3 months before study intervention(s). Note: participants with non-melanoma skin cancer or carcinoma in situ of the cervix or breast are eligible.
- Current immunosuppressive medication.
- Any one of the following symptoms as declared by the participant at least one day per week within 3 months before study intervention(s) (Rome IV criteria \[36\])
- Diarrhea characterized as frequent (\>2) loose stools
- Constipation defined as \< 3 spontaneous bowel movements per week
- Bloating and/or distention
- Abdominal pain.
- Participants with a history of the human immunodeficiency virus (HIV), hepatitis C (HCV), or hepatitis B (HBV) as confirmed by a seropositive blood test.
- Pregnancy confirmed with beta-Human Chorionic Gonadotropin (Beta-HCG) serum or urine pregnancy test performed in women of childbearing potential at screening.
- Breastfeeding participants.
Where
- Bethesda, Maryland
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 2, 2026 · Source of record for eligibility and locations