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Food Effect in Healthy VolunteersPhase 1NCT07903337

A Phase 1, Open-Label, Two-Stage, Food Effect Study to Assess the Safety, Tolerability, and Pharmacokinetics of EI-1071 Under Fasted or Fed Conditions in Healthy Volunteers

A Phase 1 study testing EI-1071 in people with Food Effect in Healthy Volunteers, run by Elixiron Immunotherapeutics Inc. at 1 site in Taiwan.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

This is a phase 1, open-label, two-stage, sequential food effect study to evaluate the safety, tolerability, and PK of EI-1071 under fasted or fed conditions in HVs. Approximately 25 evaluable participants will be enrolled in this study, including 11 participants in Stage 1 and 14 participants in Stage 2. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Food Effect in Healthy Volunteers
What is being tested?
EI-1071
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
1 siteTaiwan
Study dates
Nov 2026to Aug 2027
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 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male or non-lactating and non-pregnant female, aged 18 to 55 years old at the Screening Visit.
  • Body mass index (BMI) ranging from 18.0 to 30.0 kg/m2 and body weight ≥ 50 kilograms at the Screening Visit.
  • Note: Participants who will participate in four periods in stage 1 (Dose Levels 1 and 2) must weigh greater than 60 kg at screening.
  • Able to speak, read, and understand the language of the ICF, the nature of the study, and any potential risk associated with the IP and willing to provide written informed consent, to communicate with the Investigator, and to comply with all study visits, procedures, requirements, and restrictions.
  • Mentally and physically healthy according to medical history, physical examination, vital signs, laboratory tests, and 12-lead ECG as determined by the Investigator.
  • Reproductive and Contraceptive Status Requirements
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  • Female participants: Must not be pregnant, nor breastfeeding
  • Female participants with childbearing potential must have a negative result of serum pregnancy test at the Screening Visit; and must not plan to become pregnant during the study until 5 half-lives of EI-1071+ 30 days after the last administration of EI-1071
  • - A female is considered to be of childbearing potential unless she:
  • has had a hysterectomy, bilateral salpingectomy, or bilateral oophorectomy documented in medical history
  • has been amenorrhoeic for consecutive ≥ 12 months (including no irregular menses or spotting) in the absence of any medication which induces a menopausal state and has documented ovarian insufficiency by follicle stimulating hormone [FSH] levels within the institutional laboratory postmenopausal range).
  • Female participants with childbearing potential and male participants with reproductive potential must agree to refrain from unprotected sex and use two methods of medically acceptable contraception (e.g., barrier contraceptives [male condom, female condom, or diaphragm plus spermicide], non-hormonal intrauterine device [IUD]) or abstain from sexual intercourse from the Screening Visit until 5 half-lives of EI-1071 + 30 days after the last dose of EI-1071 for female participants, and until 5 half-lives of EI-1071 + 90 days after the last dose of EI-1071 for male participants.
  • Male participants must agree to refrain from sperm donation, and female participants must agree to refrain from ova donation from Study Day -1 until 5 half-lives of EI-1071 + 90 days after the last dose of the IP.
  • Note: For participants who consent to CBSF sampling in Stage 2, the absence of tumor, hemorrhage (including asymptomatic), or any clinically significant findings have to be evaluated and confirmed by the Investigator based on the brain CT scan prior to CBSF sampling.

Who cannot join

  • History of allergy or hypersensitivity or clinically significant idiosyncratic reaction to EI-1071 or any component of this formulation (e.g., hydroxypropyl methylcellulose acetate succinate).
  • Current or historical evidence of any clinically significant gastrointestinal, cardiovascular, hepatic, renal, hematological, endocrine, neurological, immunodeficiency, pulmonary, or other disorder, disease, or condition, that in the opinion of the Investigator, may increase the risk of IP or affect drug absorption, distribution, metabolism, or excretion.
  • History of neoplastic or malignant disease (except for localized skin cancer without metastases).
  • Known history of gastrointestinal surgery unless determined as non-clinically significant by the Investigator. Participants with a history of appendectomy or hemorrhoidectomy may be included at the discretion of the Investigator.
  • A clinically significant vital signs abnormality, as judged by the Investigator. This includes, but is not limited to, the following (values obtained in the supine position with rest for at least 5 minutes before blood pressure assessment): systolic blood pressure < 90 or > 150 mmHg, diastolic blood pressure < 50 or > 95 mmHg, or heart rate < 45 or > 100 beats per minute. One repeat measurement is allowed for eligibility purposes at the Screening Visit and on Day -1.
  • Significantly abnormal 12-lead ECG or QT prolongation (e.g., QTcF > 450 ms) at the Screening Visit, deemed unsuitable for participation in the trial as judged by the Investigator.
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  • Positive for human immunodeficiency virus (HIV) antibody, hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibody as defined by serology tests at the Screening Visit.
  • Positive for amphetamine (AMP), cocaine (COC), opiates (morphine), and cannabinoid (THC) as defined by urine tests at the Screening Visit or Check-in Visit.
  • Positive serum alcohol test result, defined as a result above the laboratory-defined lower limit of quantification (or detection) at Screening Visit or Check-in Visit.
  • Onset of influenza-like symptoms as defined by: fever (temperature ≥ 38℃), dry cough, headache, fatigue, respiratory sputum production, dysgeusia, anosmia, shortness of breath, muscle and joint pain, or sore throat within 1 week prior to the Screening Visit.
  • Receipt of vaccination within 30 days prior to the first administration of the IPs or plan to receive vaccination during the study.
  • Use of any prescription or over-the-counter (OTC) medication, including oral contraceptives, oral multivitamins, herbal and/or dietary supplements within 30 days prior to the first administration of the IP (except topical agents without systemic absorption, as determined by the Investigator).
  • Administration of any investigational drug other than EI-1071 within 30 days or 5 elimination half-lives of such investigational drug, whichever is longer, prior to the first administration of the IP; or planned administration of another investigational drug or procedure during the study.
  • Consumption of products containing caffeine/methylxanthines, poppy seeds, and/or alcohol within 48 hours before the first administration of the IPs and products containing grapefruit and/or pomelo (shown to inhibit cytochrome P450 [CYP] 3A4 activity) or St John's wort (Hypericum perforatum; shown to induce CYP3A4 activity) within 14 days prior to the first administration of the IP.
  • Receipt of any blood, plasma, or platelet transfusions within 3 months prior to the first administration of the IP.
  • Blood donation or blood loss of more than 250 mL within 3 months prior to the first administration of the IP.
  • Use of any tobacco- or nicotine-containing products within 3 months prior to the first administration of the IP or during the study.
  • History of regular alcohol consumption within 3 months of Day 1, defined as an average intake of > 15 alcoholic drinks per week in males and > 8 alcoholic drinks per week in females. One drink (14 g alcohol) is equivalent to 150 mL of wine, 360 mL of beer, or 45 mL of 80 proof distilled spirits. Participants who have consumed any alcohol products within 48 hours prior to the first administration of the IP will not be enrolled in the study.
  • History of addiction to or abuse of illicit drug(s), prescription medicine(s), or alcohol within the past 2 years prior to the Screening Visit.
  • Participant who is considered unfit to participate in the clinical study based on the judgment of the Investigator.

Trial locations and contacts

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

Project Manager contact

+886-27827700

yachien@elixiron.com

Taiwan1 site
  • Taipei Medical University Hospital

    Taipei, 110

Other trials in Taiwan

About this study

This is a phase 1, open-label, two-stage, sequential food effect study to evaluate the safety, tolerability, and PK of EI-1071 under fasted or fed conditions in HVs. Approximately 25 evaluable participants will be enrolled in this study, including 11 participants in Stage 1 and 14 participants in Stage 2. Stage 2 study may be conducted based on the results of Stage 1 study.

Being tested
EI-1071
Keywords
EI-1071, Healthy volunteers, CSF1R inhibitor

What participants receive

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

  • EI-1071Drug

    EI-1071 tablet, oral

Study groups in NCT07903337
Study groupRoleWhat they receive
Stage 1 Dose Level 1ExperimentalNot described
Receives: Drug: EI-1071
Stage 1 Dose Level 2ExperimentalNot described
Receives: Drug: EI-1071
Stage 2ExperimentalNot described
Receives: Drug: EI-1071

What is being measured

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

  1. Stage 1 Area under the curve [AUC] from time 0 to the last quantifiable time [AUC0-t]

    Measured: Day 1 to Day 4 of each single dose period

  2. Stage 1 AUC from time 0 to infinity [AUC0-∞], and maximum concentration [Cmax]

    Measured: Day 1 to Day 4 of each single dose period

  3. Stage 1 Time to Cmax (Tmax)

    Measured: Day 1 to Day 4 of each single dose period

  4. Stage 1 Half-life (t1/2)

    Measured: Day 1 to Day 4 of each single dose period

  5. Stage 1 Apparent clearance (CL/F)

    Measured: Day 1 to Day 4 of each single dose period

  6. Stage 1 Apparent volume of distribution (Vz/F)

    Measured: Day 1 to Day 4 of each single dose period

  7. Stage 2 Incidence and severity of TEAEs and TESAEs,

    Measured: From Day 1 to Day 21 (EOS visit)

  8. Stage 2 Physical examination

    Measured: Screening, Day -1, Day 21

  9. Stage 2 Vital signs

    Measured: Screening, Day -1 to Day 21

  10. Stage 2 Laboratory tests

    Hematology, biochemistry, urinalysis, and coagulation

    Measured: Screening, Day -1, Day 7, Day 14, Day 21

  11. Stage 2 12-lead ECG

    Measured: Screening, Day 1, Day 14, Day 21

Secondary outcomes (18)
  1. Stage 1 Incidence and severity of treatment-emergent adverse events (TEAEs) and treatment emergent serious adverse events (TESAEs)

    Measured: From Day 1 to EOS visit

  2. Stage 1 Physical examination

    Measured: Screening, Day -1, Day 4, Day 7 of each single dose period

  3. Stage 1 Vital signs

    Measured: Screening, Day -1, Day 1, Day 2, Day 3, Day 4, Day 7 of each single dose period

  4. Stage 1 Laboratory tests

    Hematology, biochemistry, urinalysis, and coagulation

    Measured: Screening, Day -1, Day 4, Day 7 of each single dose period

  5. Stage 1 12-lead electrocardiogram (ECG)

    Measured: Screening, Day 1, Day 4, Day 7 of each single dose period

  6. Stage 2 AUC during a dosing interval (AUCτ)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  7. Stage 2 AUC from 0 to 24 hours (AUC0-24)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  8. Stage 2 Cmax

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  9. Stage 2 Tmax

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  10. Stage 2 AUC during a dosing interval at steady state (AUCτ,ss)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  11. Stage 2 AUC0-24 at steady state (AUC0-24,ss)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  12. Stage 2 Maximum concentration at steady state (Cmax,ss)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  13. Stage 2 Concentration at the end of dosing interval at steady state (Ctrough,ss)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  14. Stage 2 Time to Cmax at steady state (Tmax,ss)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  15. Stage 2 Accumulation ratio (Rac)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  16. Stage 2 Half-life (t1/2)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  17. Stage 2 Apparent clearance (CL/F)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

  18. Stage 2 Apparent volume of distribution (Vz/F)

    Measured: From pre-dose on Day 1 to 12 hours after the morning administration on Day 14

Timeline

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

  1. First posted29 Oct 2026
  2. Study startNov 2026 (estimated)
  3. Primary completionAug 2027 (estimated)
  4. Study completionAug 2027 (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
Other
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
25 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07903337
Sponsor's protocol ID
EI-1071-102
Status last verified
Oct 2026
First submitted
29 Sep 2026
Last updated
29 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing EI-1071 in people with Food Effect in Healthy Volunteers, run by Elixiron Immunotherapeutics Inc. at 1 site in Taiwan.

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 14 inclusion and 20 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: opening soon, as of the sponsor's last update on 29 Oct 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 Taiwan. 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. 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 Project Manager (+886-27827700, yachien@elixiron.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Stage 1 Area under the curve [AUC] from time 0 to the last quantifiable time [AUC0-t] (time frame: Day 1 to Day 4 of each single dose period). The study lists 11 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 29 Oct 2026.

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