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CompletedNCT04963712Updated Jul 18, 2023

Zadaxin and HIV-positive Patients With Immune Reconstitution Disorder

An Early Phase 1 interventional study of Zadaxin in HIV-1-infection, sponsored by Shanghai Public Health Clinical Center. Completed at 1 site in China. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2023-07-18.

Sponsored by Shanghai Public Health Clinical Center · Early Phase 1, Interventional, and Treatment

Phase
Early Phase 1
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to evaluate the safety and efficacy of Zadaxin® in the treatment of HIV-positive patients with immune reconstitution disorders. Researchers previously used Zadaxin® (Thymosin α-1, Tα1) as an immune adjuvant for people infected with HIV-1 and found that Tα1 and Interferon-α (IFN-α) have a synergistic effect in immune enhancement. In addition, studies have found that the triple combination of Tα1, IFN-α and Zidovudine has better tolerability, safety and efficacy. After treatment, patients have lower HIV RNA and more stable high CD4+ T cell counts. In addition, extensive studies on the administration of Tα1 in thymectomized mice have demonstrated its ability to promote immune reconstitution. The researchers hypothesized that Zadaxin® has a better therapeutic effect on HIV-positive patients with immune reconstitution disorders, can increase the CD4+T cell count, reduce the viral load, and has better safety.

Read the detailed description

All patients received Zadaxin (1.6 mg subcutaneous injection, once a day) in the first 2 weeks, and changed frequency (1.6 mg subcutaneous injection, twice a week) in the successive 22 weeks. It is still recommended to continue treatment until the end of the study. All subjects were given HAART treatment throughout. In 4th week, 8th week, 12th week and 24th week, perform 4 follow-up and record the changes in CD4+ T cell count and proportion, CD8+ T cell count and proportion, proportions of T cell subsets, PBMC sjTREC, proportions of exhauseted T cell expressed PD-1 and Tim-3, and HIV viral load. During the process, safety assessment is performed, including adverse events, electrocardiogram and a series of laboratory tests (blood routine, liver and kidney function, etc.).

02

Conditions studied

  • HIV-1-infection

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03

In context

HIV Seropositivity

210 studies on the registry are indexed under HIV Seropositivity; 10 are open to participants now.

This study's enrollment of 20 is below the median of 89 across 140 interventional studies indexed under HIV Seropositivity.

Browse HIV Seropositivity studies →

Lead sponsor

Shanghai Public Health Clinical Center is the lead sponsor of 37 studies on the registry; 11 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age 18-65 years old;
  • HIV serology is positive;
  • Volunteer to participate;
  • CD4+T cell count >100 and \<350 cells/mm3;
  • People who have received HAART treatment and the viral load is undetected for at least 2 years, but have immune reconstitution disorder;
  • Without active opportunistic infection;

Exclusion criteria

Exclusion Criteria:

  • History of allergy or contraindications to Zadaxin;
  • Skin basal cell carcinoma, cervical carcinoma in situ or other concurrent tumors other than Kaposi's sarcoma;
  • The expected survival time is less than 1 year;
  • Women of childbearing age have a positive pregnancy test;
  • Major heart disease or central nervous system disease or other nervous system abnormalities;
  • ACTG-AIDS dementia syndrome staging score> 0.5;
  • Organ transplantation;
  • Received chemotherapy and radiotherapy for malignant tumors within 6 months;
  • Known immunomodulators (such as systemic steroids, interferons, interleukins) or other immunotherapy within 30 days before the start of the study;
  • Blood transfusion within 30 days before the start of the study;
  • Have a history of iritis, endophthalmitis, scleritis or retinitis;
  • Within 30 days before the screening assessment, accept any experimental treatment for HIV-positive patients with or without symptoms of infection;
  • Drug abuse;
  • The doctor's decision is that participation in the trial is not in the patient's best interests, or any situation that does not allow safe compliance with the protocol.
05

Study design

Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Zadaxin-HIV(n=20)

    Study participants will be given Zadaxin (1.6 mg subcutaneous injection, once a day) in the first 2 weeks, and changed frequency (1.6 mg subcutaneous injection, twice a week) in the successive 22 weeks.

    Drug: Zadaxin

Interventions

  • DrugZadaxin

    1.6 mg subcutaneous injection, once a day in the first 2 weeks, and 1.6 mg subcutaneous injection, twice a week in the successive 22 weeks.

    Also known as: Thymosin α1

06

What researchers measure

Primary outcomes

  1. Change in CD4+T cell counts

    Peripheral blood

    Time frame: Measured on week 24

  2. Change in CD4/CD8 ratio

    Peripheral blood

    Time frame: Measured on week 24

Secondary outcomes

  1. Change in CD4+T cell count and proportion

    Peripheral blood

    Time frame: Measured on week 0, 4, 8, 12, 24

  2. Change in CD8+T cell count and proportion

    Peripheral blood

    Time frame: Measured on week 0, 4, 8, 12, 24

  3. Change in proportions of T cell subsets

    Peripheral blood mononuclear cell

    Time frame: Measured on week 0, 4, 8, 12, 24

  4. Change in proportions of immune exhausted T cells expressed PD-1 and TIM-3

    Peripheral blood mononuclear cell

    Time frame: Measured on week 0, 4, 8, 12, 24

  5. Change in PBMC sjTREC

    Peripheral blood mononuclear cell

    Time frame: Measured on week 0, 4, 8, 12, 24

  6. Change in HIV-1 RNA

    Plasma

    Time frame: Measured on week 0, 4, 8, 12, 24

07

Study locations

1 site
  • Fudan University
    Shanghai, Shanghai, China
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04963712
Lead sponsor
Shanghai Public Health Clinical Center
Responsible party
Hongzhou Lu (Professor, Shanghai Public Health Clinical Center) — Principal investigator
First posted
Jul 15, 2021
Start date
Sep 1, 2021
Primary completion
Jul 22, 2022
Completion
Aug 11, 2022
Last update
Jul 18, 2023

Study contacts

Hongzhou Lu, Ph.D
study director · Shanghai Public Health Clinical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2023. You cannot join it, but the record below documents what was studied.

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