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HealthyPhase 1NCT06845839

Study to Evaluate CAY001 in Healthy Volunteers

A Phase 1 study testing CAY001 in people with Healthy, run by Cayuga Biotech, Inc. at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This is a Phase 1, first-in-human, randomized, double-blind, placebo-controlled, single ascending dose, sequential group study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of CAY001 when administered to healthy male and female subjects. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
CAY001
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
24 participants
Where
1 siteUnited States
Study dates
2 Dec 2025to 30 Oct 2026
Phase
Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • The subject is able to provide written informed consent
  • The subject is male or female (based on gender assigned at birth), 18-50 years of age inclusive
  • The subject has a body mass index ≥ 18 and ≤ 30.0 kg/m2 and weighs at least 61 kg for males and females
  • The subject is in good general health per Investigator evaluation for age as determined by medical history, vital signs, physical examination findings, screening laboratory test results, and 12-lead ECG results.
  • Specific inclusionary laboratory values prior to randomization require the following.
  • Aspartate transaminase (AST), alanine transaminase (ALT) \< 1.5 x upper limit of normal (ULN)
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  • Total serum bilirubin and alkaline phosphatase levels \< 1.2 x ULN
  • White blood cell (WBC) count, platelet count, and hemoglobin level within the normal range; out of range values are allowed if per the Investigator they are not deemed clinically significant
  • PT/INR, partial thromboplastin time (PTT), and D-dimer level (age-adjusted) within the normal range
  • Negative drug and alcohol tests at Screening and check-in (Day -1) and willing to abstain from alcohol and recreational drug use from the screening visit until the EOS/ET Visit;
  • No use of any tobacco or nicotine-containing products within 3 months, negative cotinine test at Screening and check-in (Day -1), and willing to abstain from tobacco or nicotine use from the screening visit until the EOS/ET Visit;
  • Male and female (women of childbearing potential [WOCBP]) subjects of childbearing potential must agree to the double-barrier method (i.e. male condom and spermicide or diaphragm and spermicide) or abstinence and refrain from sperm/egg donation throughout the study starting with the first dose of study treatment and for at least 3 months after the last dose of study drug. Hormonal contraceptives and intrauterine devices [IUD] must be stopped at least 3 months prior to the first dose of study treatment and for at least 3 months after the last dose of study drug. ▪ Note: Non-WOCBP includes healthy postmenopausal women who have undergone surgical menopause (hysterectomy, oophorectomy) or have been naturally menopausal, with no menstrual cycle for at least 24 months prior to Day 1; In the case of females, a negative serum pregnancy test (SPT) at Screening and a negative urine pregnancy test at check-in on Day -1.
  • Able to communicate adequately with the Investigator and to comply with the requirements for the entire study

Who cannot join

  • Any clinically significant acute or chronic medical condition that in the evaluating Investigator's opinion could interfere with the study
  • Any history of plastic surgery involving silicone, any clinically significant illness, medical/surgical procedure, or trauma within 4 weeks of the first administration of the study drug or any planned surgical procedure that will occur during the study and cannot be delayed (from screening through the Day 28 EOS/ET Visit);
  • Any clinically significant abnormal findings in physical examination, vital signs, laboratory assessments (other than those discussed in the inclusion criteria), and ECG parameters identified during screening or check-in that in the evaluating Investigator's opinion could interfere with the study. Note: abnormal test results may be repeated once for confirmation;
  • Any of the following vital signs occurring after 10 minutes of supine rest at screening or check-in: ▪ Systolic blood pressure \>140 mm Hg ▪ Diastolic blood pressure \>90 mmHg ▪ Heart rate \<45 or \>100 beats per minute
  • Any of the following ECG parameters at screening or check-in:
  • Prolonged Fridericia-corrected QT interval (QTcF) \>450 msec for males and \> 460 msec for females, shortened QTcF \<340 msec, or pause \>3 seconds;
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  • Prolonged PR (PQ) interval \>200 msec, intermittent second- or third-degree atrioventricular (AV) block or AV dissociation
  • Complete right or left bundle branch block (QRS \> 120 msec); left ventricular hypertrophy
  • Family history of long QT syndrome or sudden cardiac death
  • Have a known hypersensitivity or allergy to CAY001 components polyP or SNP, or to any ingredients in medication(s) to be received in this study;
  • Any history of significant liver, spleen, or kidney conditions
  • Any history of arterial or venous thrombosis or hypercoagulable or thrombotic condition, including any of the following
  • History of transient ischemic attack, cardiovascular accident, stroke (ischemic or hemorrhagic), unstable angina, myocardial infarction, or peripheral arterial disease
  • History of deep venous thrombosis, pulmonary embolus, thrombophlebilitis or arterial thrombosis
  • History of known clotting disorders like factor V leiden syndrome, protein C or S deficiency, or antiphospholipid syndrome;
  • An increased risk of bleeding, including but not limited to the following:
  • Recent history (within 6 months preceding the first dose of study drug) of gastrointestinal (GI) bleeding that required unscheduled medical evaluation;
  • History of intracranial, intraocular, retroperitoneal, or spinal bleeding;
  • Recent major trauma (within 6 months preceding the first dose of the study drug)
  • History of hemorrhagic disorders, e.g. hemophilia, von Willebrand's disease, Hermansky-Pudlak syndrome
  • History of severe head trauma, intracranial hemorrhage, intracranial neoplasm, arteriovenous malformation, aneurysm, or proliferative retinopathy;
  • Subject reported history of blood in the stool
  • Use of any prescription, investigational or illicit drugs within 30 days (or 5 half-lives whichever is longer) prior to dosing;
  • Use of any over-the-counter (OTC) products, dietary supplements and herbal products (ie. St. John's Wort or fish oil) within 14 days of dosing through the Day 7 Safety Follow-up Visit;
  • Known active hepatitis B or C infection, human immunodeficiency virus (HIV) infection, or known other immune deficiency disease at screening;
  • Females who are pregnant, plan to become pregnant within 3 months of the last dose of study drug, or are breastfeeding a child;
  • History of or treatment for alcoholism or drug addiction within 1 year;
  • Receipt of blood transfusion, blood-derived products, or coagulation factors within 1 month prior to Day 1;
  • Prior exposure to CAY001;
  • An employee, family member, or student of the Sponsor, Investigator, or clinical site(s);
  • Unable to adhere to or understand the requirements of the protocol.
  • Consume caffeine containing food or beverages 48 hours prior to check in and during study confinement period.
  • Females who are actively menstruating on the day of dosing (Day 1).
  • Subject meets eligibility criteria, but study is filled.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site, 1 recruiting
  • TKL Research

    Fair Lawn, New Jersey, 07410

    Iris Moscoso, CCRC, 201-587-0500 ext. 2524, irios@tklresearch.onmicrosoft.com

    Cary Chiang, MD

    Recruiting

Other trials in United States

About this study

Official title: A Phase 1, Randomized, Double-blind, Placebo-controlled, Single Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Intravenously Administered CAY001 in Healthy Volunteer Subjects

This is a Phase 1, first-in-human, randomized, double-blind, placebo-controlled, single ascending dose, sequential group study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of CAY001 when administered to healthy male and female subjects. Three dose levels will be evaluated with a total of approximately 24 subjects.

Conditions
Healthy
Being tested
CAY001, Placebo
Keywords
hemorrhage, polyphosphate, hemostatic drug, coagulation, clotting
Medical subject headings
Hemorrhage, Thrombosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CAY001Drug

    Polyphosphate (PolyP) - silica nanoparticle (SNP) complex

  • PlaceboOther

    Vehicle - aqueous solution

Study groups in NCT06845839
Study groupRoleWhat they receive
CAY001ExperimentalNot described
Receives: Drug: CAY001
PlaceboPlacebo comparatorNot described
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence and severity of serious adverse events from Baseline through Day 28.

    Measured: 28 days

  2. Incidence and severity of treatment related adverse events from Baseline through Day 28

    Measured: 28 days

  3. Changes in physical examination findings from Baseline through Day 28

    Physical examination includes general appearance, HEENT (head, eyes, ears, nose, throat), chest/lungs, heart, abdominal, neurological, extremities, skin, and palpable lymph nodes. Physical examination will be conducted at screening, at multiple timepoints during the study (symptom-directed).

    Measured: 28 days

  4. Changes in electrocardiograms (ECGs) from Baseline through Day 28

    A standard 12-lead ECG will be performed after at least 10 minutes in the supine position. ECG data collected includes PR, QT interval, QRS duration, QTcF and heart rate.

    Measured: 28 days

  5. Changes in systolic and diastolic blood pressure in mmHg from Baseline through Day 28

    Vital signs, including blood pressure will be collected with the subject supine and after resting for 10 minutes.

    Measured: 28 days

  6. Changes in blood chemistry parameters (calcium, phosphorus, glucose, BUN, uric acid, bilirubin, creatinine and magnesium) in mg/dL, from Baseline through Day 28

    Measured: 28 days

  7. Changes in hematology parameters (white blood cell, red blood cell, platelets) in x10E3/uL, from Baseline through Day 28

    Measured: 28 days

  8. Changes in coagulation parameters (aPTT and PT) in seconds, from Baseline through Day 28

    Measured: 28 days

  9. Changes in urinalysis from Baseline through Day 28

    Urinalysis evaluations are microscopic examination and specific gravity, pH, protein, glucose, ketones, blood, urobilinogen, bilirubin, nitrites and leucocyte values.

    Measured: 28 days

  10. Changes in temperature in degrees Celsius from Baseline through Day 28

    Vital signs, including temperature, will be collected with the subject supine and after resting for 10 minutes.

    Measured: 28 days

  11. Changes in pulse in beats per minute, from Baseline through Day 28

    Vital signs, including pulse, will be collected with the subject supine and after resting for 10 minutes.

    Measured: 28 days

  12. Changes in respiratory rate in breaths per minute, from Baseline through Day 28

    Vital signs, including respiratory rate, will be collected with the subject supine and after resting for 10 minutes.

    Measured: 28 days

  13. Changes in blood chemistry (total protein, albumin) in g/dL, from Baseline through Day 28

    Measured: 28 days

  14. Changes in blood chemistry (alkaline phosphatase, AST, ALT, GGT ) in IU/dL, from Baseline through Day 28

    Measured: 28 days

  15. Changes in blood chemistry (creatinine kinase, ) in U/L, from Baseline through Day 28

    Measured: 28 days

  16. Changes in blood chemistry (potassium, sodium, chloride) in mmol/L, from Baseline through Day 28

    Measured: 28 days

  17. Changes in hematology parameters (hemoglobin, MCHC) in g/dL, from Baseline through Day 28

    Measured: 28 days

  18. Changes in hematocrit in % from Baseline through Day 28

    Measured: 28 days

  19. Changes in hematology parameter, MCV, in fL from Baseline through Day 28

    Measured: 28 days

  20. Changes in hematology parameter, MCH in pg from Baseline through Day 28

    Measured: 28 days

  21. Changes in coagulation parameter, D-Dimer, in mg/L FEU, from Baseline through Day 28

    Measured: 28 days

  22. Changes in coagulation parameter, INR, in NA, from Baseline through Day 28

    Measured: 28 days

Secondary outcomes (9)
  1. Change in calibrated automated thrombogram-thrombin generation assay (CAT-TGA) from Baseline through Day 28

    CAT-TGA is an ex vivo assay to determine the speed and amount of thrombin generated.

    Measured: 28 days

  2. Determine the half-life (t½) (terminal)

    Pharmacokinetic assay

    Measured: Pre-dose through 24 hours post-dose

  3. Determine the time to maximum concentration (Tmax)

    Measured: Pre-dose through 24 hours post-dose

  4. Determine the maximum observed concentration (Cmax)

    Measured: Pre-dose through 24 hours post-dose

  5. Determine the area under the curve (AUC)

    Measured: Pre-dose through 24 hours post-dose

  6. Determine the AUC zero to infinity (AUC0-∞)

    Measured: Pre-dose through 24 hours post-dose

  7. Determine the AUC zero to last measurable concentration (AUC0-last)

    Measured: Pre-dose through 24 hours post-dose

  8. Determine the clearance (CL)

    Measured: Pre-dose through 24 hours post-dose

  9. Determine the volume of distribution at steady state (Vss)

    Measured: Pre-dose through 24 hours post-dose

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Feb 2025
  2. Study start2 Dec 2025
  3. Primary completion30 Oct 2026 (estimated)
  4. Study completion30 Oct 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
24 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06845839
Sponsor's protocol ID
CAY001-01
Other IDs
MT21006.078, MTEC-21-06-MPAI-078
Status last verified
May 2026
First submitted
8 Nov 2024
Last updated
5 May 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing CAY001 in people with Healthy, run by Cayuga Biotech, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 34 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 5 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Iris Moscoso, CCRC (201-587-0500 ext. 2524, irios@tklresearch.onmicrosoft.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence and severity of serious adverse events from Baseline through Day 28. (time frame: 28 days). The study lists 22 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 May 2026.

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