Can a drop of blood predict disease years before it strikes?
NCT ID NCT07743021
First seen Aug 03, 2026 · Last updated Aug 04, 2026 · Updated 1 time
Summary
This study is collecting blood samples and health data from 15,000 symptom-free adults over 40 to understand what healthy aging looks like at the molecular level. By tracking participants over time, researchers hope to establish normal ranges for thousands of blood markers and identify early warning signs for major diseases like cancer, heart disease, and diabetes. The goal is to create a 'molecular fingerprint' that could one day lead to earlier detection and prevention of these conditions.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could lead to earlier detection of diseases like cancer, heart disease, and diabetes through simple blood tests, potentially improving prevention and treatment outcomes.
- What could go wrong
- This is an observational study, not a treatment trial. It will take years of follow-up to see if any new biomarkers are reliable, and findings may not translate into practical tests quickly.
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 15,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2021
- Expected to finish
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Dec 2030
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
Study population include healthy participants who are managed by primary healthcare professionals in Hungary, in any parts of the country.
- Ages
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40 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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.
Low- and Moderate-risk Cohort: Inclusion Criteria: 1. Signed informed consent form (ICF) of the study. 2. Age \> 40 years. 3. Willingness to fill in the study questionnaire. 4. No clinically relevant symptoms as assessed by the investigator, subjects with existing medical conditions may be eligible given that they are symptom free and that full treatment of the condition is medically confirmed. 5. Willingness to participate in future visits. Exclusion Criteria: 1. Self-reported pregnancy (no test). 2. Indications of clinically relevant medical conditions in self-reported healthy subjects. 3. Self-reported symptom-free HIV, HCV and HBV infections. If HIV, HBV or HCV serology test is done and any of them are positive, the subject will be considered a screen failure. 4. Any conditions preventing blood-draw. 5. Vulnerable subjects. 6. Foreseeable lack of compliance. 7. Participation in another sample collection project of the same sponsor, in order to avoid double evaluation of the same subject. 8. Participation (currently or in the past month) in an early phase clinical trial (phases I and II) involving testing of pharmaceutical products, if the last dose of pharmaceutical product administration was within 30 days of the first sample collection, and / or further pharmaceutical product administration is planned. 9. Vaccination within the last 14 days. High-risk Cohort: Inclusion Criteria: 1. Signed informed consent form (ICF) of the study. 2. Age \> 50 years. 3. Willingness to fill in the study questionnaire. 4. Willingness to participate in future visits and medical investigations, the presence of at least 2 of the following 3 risk factors (inclusion criteria #5-7): 5. Hypertension, receiving antihypertensive treatment. 6. Dyslipidemia/ Hypercholesterolemia (\>5.2mmol/L total cholesterol level), on or not on statin-treatment. 7. Active or former smoker, with smoking history of at least 20 pack-years, and/or the presence of intermediate lung nodule on prior LDCT testing. 8. No clinically relevant symptoms as assessed by the investigator; subjects with existing medical conditions may be eligible given that they are symptom free and that treatment of the condition is well documented. Exclusion Criteria: 1. Self-reported pregnancy (no test). 2. Cardiovascular disease (including obstructive coronary artery disease, peripheral artery disease, aortic aneurysm) or other clinically significant heart disease (congenital, valvular heart disease, cardiomyopathy, heart failure and heart disease requiring ICD \[implantable cardioverter defibrillator\] or pacemaker therapy). 3. Interstitial lung disease or severe COPD (chronic obstructive pulmonary disease) in GOLD stages 3 or 4. 4. Active cancer or malignant disease with less than 5 years history of remission. 5. Indications of clinically relevant medical conditions in self-reported healthy subjects, especially if (a) the condition requires regular or constant specialist checkups, or (b) pharmacological therapy indicates the presence of significant NCDs or multimorbidity, i.e., chronic polypharmacy (use of 5 or more medications at enrollment or over the last 6 months), or drug therapy necessitating a specialist input for initiation or management (e.g., combined anti-diabetic treatment with two or more medications). 6. Self-reported symptom-free HIV, HCV and HBV infections. If HIV, HBV or HCV serology test is done and any of them are positive, the subject will be considered a screen failure. 7. Any conditions preventing blood-draw or CT scans. 8. Vulnerable subjects. 9. Foreseeable lack of compliance. 10. Participation in another sample collection project of the same sponsor, in order to avoid double evaluation of the same subject. 'High-risk' subjects enrolled in the low- and moderate-risk arm of the H4H study might be reallocated to the high-risk study arm after the first 4-5 visits. 11. Participation (currently or in the past month) in an early phase clinical trial (phases I and II) involving testing of pharmaceutical products, if the last dose of pharmaceutical product administration was within 30 days of the first sample collection, and/or further pharmaceutical product administration is planned. 12. Vaccination within the last 14 days of sample collection.
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Genom att skicka in godkänner du våra Användarvillkor
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 study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
25 sites. 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
Show contact details
Enter your email to view the contact information for this study.
Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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01_OVSZ Budapest_Hungarian National Blood Transfusion Service, Central Hungarian Regional Blood Transfusion Center
SUSPENDEDBudapest, 1113, Hungary
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02_PTE Pécs_University of Pécs, Centre for Occupational Health and Hygiene of the University of Pécs Clinical Centre
ACTIVE_NOT_RECRUITINGPécs, 7624, Hungary
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03_VVM Veszprém_Vita Verum Medical LLP
RECRUITINGSzékesfehérvár, 8000, Hungary
Contact Email: •••••@•••••
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04_DRC Balatonfüred_Drug Research Center LLC
SUSPENDEDBalatonfüred, 8230, Hungary
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05_DE Debrecen_University of Debrecen Clinical Centre, Institute for Primary Care and Health Promotion of Debrecen
ACTIVE_NOT_RECRUITINGDebrecen, 4032, Hungary
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07_SE Budapest_Semmelweis University, Occupational Health Service
ACTIVE_NOT_RECRUITINGBudapest, 1085, Hungary
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08_Qualiclinic Budapest_Qualiclinic LLC
RECRUITINGBudapest, 1036, Hungary
Contact Email: •••••@•••••
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09_Derma-B Debrecen_DERMA-B LLC
ACTIVE_NOT_RECRUITINGDebrecen, 4031, Hungary
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11_UNO Med Budapest_UNO MEDICAL TRIALS LLC
ACTIVE_NOT_RECRUITINGBudapest, 1152, Hungary
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13_TP Győr_Trial Pharma LLC Győr
SUSPENDEDGyőr, 9026, Hungary
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14_TP Békéscsaba_Trial Pharma LLC Békéscsaba
RECRUITINGBékéscsaba, 5600, Hungary
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15_TP Orosháza_Trial Pharma LLC Orosháza
ACTIVE_NOT_RECRUITINGOrosháza, 5900, Hungary
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16_TP Gyula_Trial Pharma LLC Gyula
RECRUITINGGyula, 5700, Hungary
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17_TP Szeged_Trial Pharma LLC Szeged
RECRUITINGSzeged, 6726, Hungary
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18_TP Sopron_Trial Pharma LLC Sopron
RECRUITINGSopron, 9400, Hungary
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19_TP Csorna_Trial Pharma LLC Csorna
SUSPENDEDCsorna, 9300, Hungary
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20_TP Budapest_Trial Pharma LLC Budapest
ACTIVE_NOT_RECRUITINGBudapest, 1119, Hungary
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21_TP Nyíregyháza_Trial Pharma LLC Nyíregyháza
ACTIVE_NOT_RECRUITINGNyíregyháza, 4400, Hungary
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22_MÁV Budapest_Railway Health Care Nonprofit Public Benefit Ltd.
RECRUITINGBudapest, 1062, Hungary
Contact Email: •••••@•••••
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23_MÁV Miskolc_Hungarian State Railways Clinic in Miskolc
RECRUITINGBudapest, 3527, Hungary
Contact Email: •••••@•••••
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24_MÁV_Szeged_Hungarian State Railways Clinic in Szeged
RECRUITINGSzeged, 6726, Hungary
Contact Email: •••••@•••••
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25_DermaMed_DermaMed Research LCC.
RECRUITINGOrosháza, 5900, Hungary
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26_BAZ Miskolc_Borsod-Abaúj-Zemplén County Central Hospital and University Teaching Hospital
RECRUITINGMiskolc, 3526, Hungary
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28_Kaposvár Kh_Somogy County Kaposi Mór Teaching Hospital
RECRUITINGKaposvár, 7400, Hungary
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30_TP Kék Pont Kecskemét_Blue Point Aquatherapy Ltd. (KomplexLabor site)
RECRUITINGKecskemét, 6000, Hungary
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31_TP Szt Magdolna_Trial Pharma Ltd. Magdalene Private Hospital
RECRUITINGBudapest, 1023, Hungary
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32_OrthoSera_OrthoSera Medical Zrt.
RECRUITINGBudapest, 1123, Hungary
Contact Email: •••••@•••••
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33_TP Fitt Harmony_Fitt Harmony Ltd
RECRUITINGJászszentlászló, 6133, Hungary
Contact Email: •••••@•••••
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34_BKS Hatvan_BKS Research Ltd. Albert Schweitzer Hospital and Outpatient Clinic
RECRUITINGHatvan, 3000, Hungary
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36_CRU Encs_CRU Hungary Healthcare and Service Provider LLC.
RECRUITINGEncs, 3860, Hungary
Contact Email: •••••@•••••
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37_KomplexLabor_KomplexLabor Diagnostics Ltd.
RECRUITINGSzeged, 6724, Hungary
Contact Email: •••••@•••••
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38_Ganglion Orvosi Központ Nozologen Kft._Ganglion Medical Center
RECRUITINGPécs, 7621, Hungary
Contact Email: •••••@•••••
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39_TP Kecskemét_Trial Pharma Ltd. Kecskemét
RECRUITINGKecskemét, 6000, Hungary
Contact Email: •••••@•••••
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