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HIV-1-infectionEarly Phase 1NCT04963712

Zadaxin and HIV-positive Patients With Immune Reconstitution Disorder

A Early Phase 1 study testing Zadaxin in people with HIV-1-infection, run by Shanghai Public Health Clinical Center at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
HIV-1-infection
What is being tested?
Zadaxin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteChina
Study dates
1 Sep 2021to 11 Aug 2022
Phase
Early Phase 1
Are there results?
None posted in the registry

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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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;

Who cannot join

  • 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;
Show all 14Show fewer
  • 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.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Fudan University

    Shanghai, Shanghai Municipality

Other trials in China

About this study

Official title: A Prospective Single-arm Cohort Study Evaluating the Safety and Efficacy of Thymalfasin (Zadaxin®) in the Treatment of HIV-positive Patients With Immune Reconstitution Disorders

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.).

Conditions
HIV-1-infection
Being tested
Zadaxin

What participants receive

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

  • ZadaxinDrug

    Also called Thymosin α1

    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.

Study groups in NCT04963712
Study groupRoleWhat they receive
Zadaxin-HIV(n=20)ExperimentalStudy 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.
Receives: Drug: Zadaxin

What is being measured

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

  1. Change in CD4+T cell counts

    Peripheral blood

    Measured: Measured on week 24

  2. Change in CD4/CD8 ratio

    Peripheral blood

    Measured: Measured on week 24

Secondary outcomes (6)
  1. Change in CD4+T cell count and proportion

    Peripheral blood

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

  2. Change in CD8+T cell count and proportion

    Peripheral blood

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

  3. Change in proportions of T cell subsets

    Peripheral blood mononuclear cell

    Measured: 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

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

  5. Change in PBMC sjTREC

    Peripheral blood mononuclear cell

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

  6. Change in HIV-1 RNA

    Plasma

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

Timeline

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

  1. First posted15 Jul 2021
  2. Study start1 Sep 2021
  3. Primary completion22 Jul 2022
  4. Study completion11 Aug 2022

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
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
All participants eligible for study received the same open label drug
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04963712
Sponsor's protocol ID
Zadaxin-HIV
Status last verified
Jul 2023
First submitted
7 Jul 2021
Last updated
18 Jul 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Chen C, Wang J, Xun J, Zhang X, Liu L, Song Z, Zhang R, Chen J, Lu H. Role of thymosin alpha1 in restoring immune response in immunological nonresponders living with HIV. BMC Infect Dis. 2024 Jan 17;24(1):97. doi: 10.1186/s12879-024-08985-y.

    PubMed 38233816

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Zadaxin in people with HIV-1-infection, run by Shanghai Public Health Clinical Center 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 6 inclusion and 14 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: finished, as of the sponsor's last update on 18 Jul 2023. 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. 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?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in CD4+T cell counts (time frame: Measured on week 24). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04963712, which also lists 1 linked publication.

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 18 Jul 2023; AzTrials last refreshed its copy on 8 Nov 2026.

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