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Lichen Simplex ChronicusPhase 1NCT07619183

A Study to Evaluate the Multiple Dose Ascending of PG-033 in Healthy Adult Participants.

A Phase 1 study testing PG-033 tablets in people with Lichen Simplex Chronicus, run by Prime Gene Therapeutics Co., Ltd. at 1 site in China.

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

The goal of this study is to evaluate the safety, tolerability and pharmacokinetics (PK) profiles of multiple ascending oral doses(MAD) of PG-033 by directly comparing it with placebo. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Lichen Simplex Chronicus
What is being tested?
PG-033 tablets
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
30 participants
Where
1 siteChina
Study dates
4 Jun 2026to 30 Dec 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 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 1. Read, understood, and signed an ICF before any investigational procedure(s) are performed..
  • 2. Male or female aged 18 to 45 (including threshold). 3. For male participants, the body weight should be ≥ 50.0 kg, and for female paticipants, the body weight should be ≥ 45.0 kg. The body mass index (BMI) should be within the range of 19.0 to 26.0 kg/m²(including threshold) 4. Results of vital signs examination, physical examination, clinical laboratory tests (including blood routine examination, urine routine examination, blood biochemistry examination, coagulation function examination, thyroid function examination, etc.), chest X-ray, adrenal gland color ultrasound, etc. during the screening period show normal results or, if there are abnormalities, they are judged by the investigator to have no clinical significance..
  • 5. Be willing to avoid pregnancy or voluntarily take effective contraceptive measures and have no sperm or egg donation plan from the signing of the informed consent form to three month after the last administration of the investigational medicinal product.
  • 6. Be able to communicate well with the investigator and understand and comply with the requirements of the study.

Who cannot join

  • 1. Participants with clinically significant abnormal electrocardiogram results judged by the investigator during screening.
  • 2. Participants known to be allergic to this product or related excipients; or participants with an allergic constitution (such as those who are allergic to two or more drugs or foods).
  • 3. Participants with a history of chronic diseases or severe diseases in the circulatory, urinary, respiratory, hematological and lymphatic, endocrine, immune, mental and neurological, digestive systems, etc.
  • 4. Participants who have undergone major surgery within 6 months before the first dose administration, or those who plan to have surgery during the study period, or those who have undergone surgery that, as judged by the investigator, will affect the evaluation of the drug's safety and pharmacokinetic characteristics.
  • 5. Participants who have used any drugs (including any prescription drugs, over-the-counter drugs, traditional Chinese herbal medicines) and health products within 2 weeks before the first dose administration.
  • 6. Participants who have used any drugs that inhibit or induce the liver's metabolism of drugs (e.g., barbiturates, carbamazepine, phenytoin, glucocorticoids, omeprazole, selective serotonin reuptake inhibitors (SSRI) antidepressants, cimetidine, diltiazem, macrolides, nitroimidazoles, sedative-hypnotics, verapamil, fluoroquinolones, antihistamines, etc.) within 4 weeks before the first dose administration.
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  • 7. Participants who are unable to stop consuming beverages and foods containing caffeine, alcohol, etc. (including chocolate, tea, coffee, cola, etc.), or foods that affect drug metabolism such as grapefruit, grapefruit products, pitaya, mango, pomelo, etc. from 48 hours before the first dose administration until the end of the trial, or those who are unable to stop consuming the above-mentioned diets from 48 hours before the first dose administration until the end of the trial.
  • 8. Participants who have received live attenuated vaccine vaccination within 4 weeks before the first dose administration or those who need to receive live attenuated vaccine vaccination during the trial.
  • 9. Participants with positive serological results for hepatitis B surface antigen (HBsAg), hepatitis C antibody, Treponema pallidum antibody, or human immunodeficiency virus antibody during screening.
  • 10. Participants who have participated in other clinical trials within 3 months before the first dose administration.
  • 11. Participants who have donated blood or lost a total of ≥ 400 mL of blood (excluding physiological blood loss in females) within 3 months before the first dose administration, received blood transfusion or used blood products, or those who plan to donate blood during the trial or within 1 month (30 days) after the end of the trial.
  • 12. Participants who have consumed an average of more than 2 units of alcohol per day within 30 days before screening (1 unit ≈ 360 mL of beer or 45 mL of liquor with an alcohol content of 40% or 150 mL of wine), or those who cannot abstain from alcohol during the trial, or those with a positive result in the alcohol breath test.
  • 13. Participants who have smoked an average of more than 5 cigarettes per day within 3 months before screening, or those who cannot stop smoking during the trial.
  • 14. Participants with a history of drug abuse within 1 year before screening or those who tested positive for drug abuse screening.
  • 15. Participants who cannot tolerate intravenous puncture/indwelling needle or those with a history of fainting at the sight of needles or blood.
  • 16. Participants with special dietary requirements and who cannot accept the unified diet.
  • 17. Pregnant or lactating women; 18. Other participants determined by the investigator to be unsuitable for participation.

Trial locations and contacts

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

Xiaohua Hao Beijing Shijitan Hospital Affiliated to Capital Medical Univer contact

+8613466590802

xiaohualuck@sina.com

China1 site
  • Beijing Shijitan Hospital, Capital Medical University

    Beijing, Beijing Municipality, 100038

Other trials in China

About this study

Official title: A Single-center, Randomized, Double-blind, Placebo-controlled, Dose Escalation Phase I Clinical Study to Evaluate the Safety, Tolerability and Pharmacokinetics of PG-033 by Multiple Dose Administration in Healthy Adult Participants .

The goal of this study is to evaluate the safety, tolerability and pharmacokinetics (PK) profiles of multiple ascending oral doses(MAD) of PG-033 by directly comparing it with placebo.

Read the detailed description

This is a single-center, randomized, double-blind, placebo-controlled, multiple-dose administration, and dose escalation phase I clinical study in adult participants aged from 18 to 45 years old (including threshold) with Healthy male and female participants.

.The multiple ascending dose (MAD) study will be conducted by increasing the dosage from low dosage level to high. Approximately 30 participants will be randomized to PG-033 or placebo in 3 dose groups.

Being tested
PG-033 tablets, PG-033 placebo comparator
Keywords
PG-033, Lichen Simplex Chronicus, Pruritus
Medical subject headings
Neurodermatitis, Pruritus

What participants receive

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

  • PG-033 tabletsDrug

    Oral tablets (2mg, 10mg)

  • PG-033 placebo comparatorDrug

    Oral tablets (2mg, 10mg) (matching corresponding study medication)

Study groups in NCT07619183
Study groupRoleWhat they receive
Multiple Ascending Doses of PG-033 tabletsActive comparatorarm1: 20 mg each time, twice daily for 7 days; arm2: 60 mg each time, twice daily for 7 days; arm3: 90 mg each time, once daily for 7 days;
Receives: Drug: PG-033 tablets
PlaceboPlacebo comparatorarm1: 20 mg each time, twice daily for 7 days; arm2: 60 mg each time, twice daily for 7 days; arm3: 90 mg each time, once daily for 7 days;
Receives: Drug: PG-033 placebo comparator

What is being measured

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

  1. Safety and tolerability of PG-033 tablets

    Incidence of treatment-emergent adverse events (AEs) and serious adverse events (SAEs)

    Measured: 17 days

Secondary outcomes (22)
  1. Pharmacokinetics-Cmax

    Maximum Observed Plasma concentration (Cmax)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  2. Pharmacokinetics-Tmax

    Time at which the maximum plasma concentration (Cmax) occurs

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  3. Pharmacokinetics-AUC0-t

    Area under the plasma concentration-time curve from dosing (time zero) to the time of the last measured concentration

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  4. Pharmacokinetics-AUC0-∞

    Area Under the Plasma Concentration Versus Time Curve from Zero Extrapolated to Infinity (AUC0-∞)

    Measured: 1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  5. Pharmacokinetics-t1/2

    Terminal Elimination Half-Life (t1/2)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  6. Pharmacokinetics-Vd/F

    Volume of Distribution (Vd/F)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  7. Pharmacokinetics-CL/F

    Total Body Clearance

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  8. Pharmacokinetics-λZ

    Elimination rate constant(λz)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  9. Pharmacokinetics-MRT

    Mean retention time (MRT)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  10. Pharmacokinetics-AUC_%Extrap

    AUC Extrap/ AUC0-∞(AUC_%Extrap)

    Measured: 1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  11. Pharmacokinetics-Cmax,ss

    Maximum plasma concentration at steady state(Cmax,ss)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  12. Pharmacokinetics-Tmax,ss

    Time to steady state Cmax(Tmax,ss)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  13. Pharmacokinetics-T1/2,ss

    Terminal Elimination Half-Life at steady state (t1/2)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  14. Pharmacokinetics-AUC 0-τ

    Area under the plasma concentration-time curve during a dosing interval (tau) at steady state (AUC 0-τ)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  15. Pharmacokinetics-AUC0-∞, ss

    Area Under the Plasma Concentration Versus Time Curve from Zero Extrapolated to Infinity at steady-state (AUC0-∞)

    Measured: 1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  16. Pharmacokinetics-Cav,ss

    Average plasma drug concentration during a dosing interval at steady state(Cav,ss)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  17. Pharmacokinetics-Cmin,ss

    Minimum drug concentration at steady state(Cmin,ss)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 ,48 and 72 hours post-dose

  18. Pharmacokinetics-Vd,ss/F

    Pharmacokinetics-Vd,ss/F Apparent volume of distribution at steady state after extravascular administration(Vd,ss/F)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  19. Pharmacokinetics-λz,ss

    Elimination rate constant at steady-state(λz,ss)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  20. Pharmacokinetics-CLss/F

    Apparent plasma clearance of drug after extravascular administration at steady state(CLss/F)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 hours post-dose

  21. Pharmacokinetics- Rac

    Accumulation ratio(Rac)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 ,36,48 and 72 hours post-dose

  22. Pharmacokinetics-DF

    egree of Fluctuation(DF)

    Measured: D1:Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8 and 12 hours post-dose; D2~D6: Pre-dose; D7~D10: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 12, 24 , 36,48 and 72 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 posted1 Jun 2026
  2. Study start4 Jun 2026 (estimated)
  3. Primary completion30 Sep 2026 (estimated)
  4. Study completion30 Dec 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
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07619183
Sponsor's protocol ID
PG-033-ND-102
Other IDs
CTR20261968
Status last verified
May 2026
First submitted
20 May 2026
Last updated
1 Jun 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 PG-033 tablets in people with Lichen Simplex Chronicus, run by Prime Gene Therapeutics Co., Ltd. at 1 site in China.

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 4 inclusion and 17 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 1 Jun 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 China. 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 Xiaohua Hao Beijing Shijitan Hospital Affiliated to Capital Medical Univer (+8613466590802, xiaohualuck@sina.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety and tolerability of PG-033 tablets (time frame: 17 days). 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 1 Jun 2026.

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