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TuberculosisPhase 1NCT06732583

A Study to Evaluate the Safety and Immunogenicity of Ad5-105K in Adults Aged 18 to 49 Years

A Phase 1 study testing Tuberculosis (TB) vaccine (Ad5-105K) and Ad5-105K in people with Tuberculosis, run by CanSino Biologics Inc. at 1 site in Indonesia.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This is a randomized, observer-blind, positive-controlled study. There will be 2 treatment groups (Group A and B). In each treatment group, 18 participants will be randomly assigned to receive either the investigational vaccine (Dose A or Dose B of Ad5-105K) or a placebo in a ratio of 2:1. Read more about this study

Who is it for?
Ages 18 to 49 yearsHealthy volunteers can take part
Conditions the study is for
Tuberculosis
What is being tested?
Tuberculosis (TB) vaccine (Ad5-105K) and Ad5-105K
Type of treatment
Vaccines
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
36 participants
Where
1 siteIndonesia
Study dates
13 Nov 2025to Aug 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 49 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Participants who, in the opinion of the investigator, are able and willing to comply with the requirements of the protocol (e.g., completion of diary cards, returning for follow-up visits).
  • Healthy male or female participants aged 18 to 49 years, at the time of obtaining informed consent.
  • Written (or thumb printed and witnessed) informed consent obtained from the participant.
  • Positive IGRA test with no history of TB disease or treatment.
  • Female participants of childbearing potential must have a negative urine pregnancy test at screening and on the day of vaccination. Male and female participants of childbearing potential must agree to use adequate contraception for the entire duration of their participation in the study.
  • History of BCG vaccination.

Who cannot join

  • Current TB disease, or a history of TB disease and/or treatment for TB (including Tuberculosis Preventive Therapy (TPT)).
  • Known history of close or household contact with active TB patient.
  • Axillary temperature ≥37.5°C.
  • Presence of congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.
  • Lactating women.
  • Individuals who smoke more than 10 cigarettes per day within the last 3 months and/or more than 2 cigars per day, and/or vapers who use more than 5 ml of e-liquid daily.
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  • Individuals with positive HIV, HBV, HCV, or TP (Treponema pallidum) test.
  • History of immunosuppressive treatment, cytotoxic treatment, or glucocorticoid treatment, etc. (excluding local treatments, surface treatments for acute non-concurrent dermatitis or spray treatment for allergic rhinitis) in the past 6 months (internal time <6 months).
  • History of, or plans to use, blood/plasma products or immunoglobulins within 60 days prior to study vaccination or at any time during the study period.
  • Uncontrolled severe hypertension (at the time of field measurement: systolic blood pressure ≥160 mmHg and diastolic blood pressure ≥100 mmHg).
  • Suffering from a serious chronic disease or a condition that is in a progressive stage and cannot be adequately controlled (e.g., thyroid disease), or having known or suspected diseases that at investigators' discretion, may affect vaccination or immunogenicity test results (e.g., diagnosed with asthma within the last 20 years, severe respiratory disease, acute infection or active chronic disease, severe cardiovascular disease, severe liver or kidney disease, malignancy, severe infectious or allergic skin disease).
  • History of serious adverse reactions associated with the adenovirus vector-based vaccine and/or history of severe allergic reactions (e.g., systemic allergic reactions) to any component of the study vaccine.
  • Immunocompromised individuals with known or suspected immunodeficiency as determined by medical history and/or physical examination (e.g., HIV infection, or a history of pancreatic, liver, spleen, kidney disease, or a history of organ resection).
  • Bleeding constitution or condition associated with prolonged bleeding for which IM injection is contraindicated, in the opinion of the investigator.
  • History of administration of any vaccine within the past three months.
  • History of receiving experimental Mycobacterium tuberculosis (Mtb) vaccines or participation in other interventional studies within 28 days prior to screening and/or during study participation.

Trial locations and contacts

1 site in 1 country.

Indonesia1 site
  • Rumah Sakit Islam Jakarta Cempaka Putih

    Jakarta

Other trials in Indonesia

About this study

Official title: A Phase I Randomized, Double-blind, Placebo-controlled and Dose Escalation Study to Evaluate the Safety and Immunogenicity of a Viral Vector-based Tuberculosis (TB) Vaccine Ad5-105K Against TB Disease in Adults Aged 18 to 49 Years

This is a randomized, observer-blind, positive-controlled study. There will be 2 treatment groups (Group A and B). In each treatment group, 18 participants will be randomly assigned to receive either the investigational vaccine (Dose A or Dose B of Ad5-105K) or a placebo in a ratio of 2:1. The distribution of participant's gender and age should be balanced in each group.

Conditions
Tuberculosis
Being tested
Tuberculosis (TB) vaccine (Ad5-105K), Placebo, Ad5-105K
Keywords
Vaccine, Ad5-105K, Immunogenicity, Safety, 18-49 years, TB
Medical subject headings
Tuberculosis

What participants receive

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

  • Tuberculosis (TB) vaccine (Ad5-105K)Biological

    1 doses of Ad5-105K vaccine (1 x 10^8 vp)) on Day 0, Nebulized Inhalation (IH) through mouth

  • PlaceboBiological

    1 doses of placebo on Day 0, IH

  • Ad5-105KBiological

    1 doses of Ad5-105K vaccine (2 x 10^8 vp)) on Day 0, IH

  • PlaceboBiological

    1 doses of placebo on Day 0, IH

Study groups in NCT06732583
Study groupRoleWhat they receive
Experimental vaccine group, Low doseExperimental1 doses of Ad5-105K vaccine (0.1ml) on Day 0
Receives: Biological: Tuberculosis (TB) vaccine (Ad5-105K)
Placebo Group, Low dosePlacebo comparator1 doses of placebo (0.1ml) on Day 0
Receives: Biological: Placebo
Experimental vaccine group, High doseActive comparator1 doses of Ad5-105K vaccine (0.2ml) on Day 0
Receives: Biological: Ad5-105K
Placebo Group, High dosePlacebo comparator1 doses of placebo (0.2ml) on Day 0
Receives: Biological: Placebo

What is being measured

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

  1. Occurrence of solicited adverse events (AEs)

    Measured: Within 7 days after vaccination

Secondary outcomes (6)
  1. Occurrence of solicited AEs

    Measured: Within 30 mins after vaccination

  2. Occurrence of unsolicited AEs

    Measured: Within 28 days after vaccination

  3. Occurrence of serious adverse events (SAEs) and adverse events of special interest (AESI)

    Measured: Through study completion, an average of 6 months

  4. Occurrence of abnormal hematology and chemistry laboratory assessments

    Measured: On Day 3 after vaccination

  5. Geometric mean titer (GMT) of anti-TB75K and anti-Ag85A IgG antibodies before vaccination

    Measured: On Day 14 and Day 28 post-vaccination

  6. Expression level of IFN-γ, TNF-α, IL-2, and IL-17 in 105K specific CD4+/CD8+ T cells evaluated by ICS

    Measured: Before vaccination and on Day 14 and Day 28 post-vaccination

Timeline

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

  1. First posted13 Dec 2024
  2. Study start13 Nov 2025
  3. Primary completionAug 2026 (estimated)
  4. Study completionAug 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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06732583
Sponsor's protocol ID
CTP-ADTB-001
Status last verified
Dec 2025
First submitted
10 Dec 2024
Last updated
30 Apr 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Tuberculosis (TB) vaccine (Ad5-105K) and Ad5-105K in people with Tuberculosis, run by CanSino Biologics Inc. at 1 site in Indonesia.

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 16 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: under way, not looking for participants, as of the sponsor's last update on 30 Apr 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 Indonesia. 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?

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?

Occurrence of solicited adverse events (AEs) (time frame: Within 7 days after vaccination). 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 30 Apr 2026.

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