ClinicalTrials.gg
Active, not recruitingNCT06062238Updated Aug 28, 2026

Study to Assess Efficacy and Safety of M72/AS01E-4 Mycobacterium Tuberculosis (Mtb) Vaccine in Adolescents and Adults

A Phase 3 interventional study of M72/AS01E-4 Mycobacterium tuberculosis investigational vaccine and Placebo in Tuberculosis, sponsored by Gates Medical Research Institute. Active, not recruiting at 54 sites in 5 countries. Open to participants aged 15 Years to 44 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-28.

Sponsored by Gates Medical Research Institute · Phase 3, Interventional, and Treatment

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Phase
Phase 3
Study type
Interventional
Enrollment
20,080
Allocation
Randomized
Ages
15 Years to 44 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 210 studies in Tuberculosis with a site in South Africa — 21 open to participants now, 35 under way, 8 of them phase 3. Tuberculosis · South Africa.

Enrollment
4th of 176
20,080 · median 214
Started
2024
with 10 others
Phase 3
23 of 210
3 open now
Primary completion
2028-04
later than 27 of 34 live
Registered
196th of 210
by date

Among the 210 studies in Tuberculosis with a site in South Africa, this one is the 4th largest by enrollment of the 176 interventional ones that give a count, is one of 11 that started in 2024, is one of 23 in phase 3, reaches primary completion later than 27 of the 34 other live ones, and was the 196th registered.

Tuberculosis

1,170 studies on the registry are indexed under Tuberculosis; 175 are open to participants now.

Browse Tuberculosis studies →

Open to participants now

21 of the 210 studies in Tuberculosis with a site in South Africa are open now. Recruiting first, the newest first:

16 more — sign in →

All 21 open studies →

A study can be open while its sites in South Africa have not opened yet or have stopped. Only those recruiting at a site in South Africa →

Who these studies take

Of the 111 Tuberculosis studies recruiting now, 65 (59%) set no upper age limit and 36 (32%) stop at 75 or younger; 48 take children under 18; 31 take healthy volunteers.

This study: 15 Years to 44 Years · all sexes · healthy volunteers too.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 210 studies in Tuberculosis with a site in South Africa, or all of them as a file.
02

Study summary

The study is a randomized, double-blind, placebo-controlled, multicenter, clinical trial to assess the prophylactic efficacy, safety, and immunogenicity of the investigational M72/AS01E-4 Mtb vaccine when administered intramuscularly (IM) on a 0,1-month schedule to adolescents and adults. This trial will be conducted in 3 cohorts: Interferon gamma release assay (IGRA)-positive Cohort, IGRA-Negative Cohort and Human Immunodeficiency virus (HIV) Cohort.

03

Conditions studied

  • Tuberculosis

Browse trials for

Keywords

  • Mycobacterium tuberculosis
  • M72/AS01E-4 vaccine
  • Safety
  • Immunogenicity
  • Efficacy
  • Mtb
  • HIV
  • TB vaccine
04

Who can participate

Ages eligible
15 Years to 44 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Capable of giving or informed assent (as appropriate). For participants below the age of consent, the participant's parent, or legally authorized representative (LAR) will be required to sign a statement of informed consent, in addition to the minor's signed statement of assent.
  • In the opinion of the investigator, can and will comply with the requirements of the protocol (e.g., completion of diary cards as applicable, and return for follow-up visits).
  • Agree to actively stay in contact with the trial site for the duration of the trial for the participants own safety.
  • Agree to provide updated contact information as necessary, and have no current plans to relocate from the trial area for the duration of the trial.
  • Healthy, or with preexisting stable disease, as established by medical history and physical examination and as determined by the investigator.
  • Negative sputum Xpert Ultra or similar assay result at screening.
  • Both males and females are included. Females are included with restrictions. Females must either be of non-, defined as pre-menarche, have a history of either current tubal ligation, hysterectomy, or ovariectomy, or , or, if she is of childbearing potential, she has practiced abstinence from penile-vaginal intercourse or adequate for 28 days prior to vaccination, has a negative pregnancy test on the day of screening and the day of first vaccination, and agrees to continue abstinence or adequate contraception until 2 months after the second dose of trial intervention.
  • -negative test result at screening (IGRA-Positive Cohort and IGRA-Negative Cohort only).
  • HIV Cohort only: Participants with documented HIV infection who fulfill all of the following criteria:

    1. Have reactive anti-HIV antibody at screening.
    2. Have been on antiretroviral therapy (ART) for at least 3 consecutive months at screening and agree to remain on ART throughout the trial.
    3. Have documented HIV Ribonucleic acid (RNA) \<200 copies per milliliter (/mL) at screening.
    4. Have Cluster of differentiation (CD)4+ cell count ≥200 cells/microliter (μL) at screening.
    5. Have had Tuberculosis preventive therapy (TPT) in the past and are not receiving TPT at the time of screening, according to the judgment of the investigators.
    6. Have an IGRA-positive or negative result at screening.

Exclusion criteria

Exclusion criteria:

  • Current TB, or history of TB or treatment for TB disease.
  • Clinical suspicion of pulmonary TB at screening, defined as a participant presenting with one or more of the following signs or symptoms: unexplained cough, unexplained fever, night sweats, unintentional weight loss, hemoptysis, pleuritic chest pain.
  • Any current medical, psychiatric, occupational, or substance abuse problems that, in the opinion of the investigator, will make it unlikely that the participant will comply with the protocol, or that will interfere with the assessments or the safety of the participant.
  • Any confirmed or suspected or immunodeficient condition resulting from disease (e.g., invasive, or malignant cancers), other than infection in the HIV Cohort.
  • Known bleeding disorder that is considered a to intramuscular injection or phlebotomy.
  • Any cytotoxic drugs or administration of medications known to have a major impact on the immune system, as determined by the investigator, within 90 days prior to Day 1. These include immune globulin, blood, or blood products, potent immunosuppressants and immunomodulators, and systemic (exceeding 20 mg/day prednisone equivalent). Inhaled, topical, and intra-articular corticosteroids are allowed.
  • Planned receipt of blood, or blood products during the trial period.
  • Receipt or planned receipt of any vaccine in the period starting 28 days before, and ending 28 days after, each dose of the trial vaccine.
  • History of previous administration of an experimental Mtb vaccine including M72/AS01E in a previous trial.
  • History of allergy or to the trial intervention, , or related Substances.
  • An indeterminate IGRA test result at screening
  • Female participants with any one of the following conditions: currently pregnant or lactating; having positive serum pregnancy test during the screening window, positive urine pregnancy test on Day 1, planning a pregnancy within 2 months after completion of the vaccination series.
  • Only in the HIV Cohort: Safety laboratory values at screening that are of concern, based on investigator's judgment. Note that preexisting stable chronic disease will not necessarily lead to exclusion, especially if laboratory values are graded as mild.
  • Participation in an interventional clinical trial in which the participant has been or will be exposed to an product (pharmaceutical product or device), within 28 days prior to signing consent or assent, or during the trial period.
  • Individuals who are acting as personnel for this trial, or who have immediate family members (brother, sister, child, parent, or the spouse/partner) who are acting as personnel for this trial.
  • Child in Care, defined as a child who is under the care (control or protection) of an agency, organization, institution or entity by the courts, the government body, acting in accordance with powers conferred in them by law or regulations. The definition of a child in care can include a child who is cared for by foster parents or living in a care home or institution, provided that the arrangements fall within the definition above. The definition of a child in care does not include a child who is adopted or has an appointed LAR.
  • Participants who had a Tuberculin Skin Test (TST) within 6 months prior to Day 1.
Terms in these criteria, in plain language(11)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
20,080 participants (actual)

Study arms

  • Experimental
    Participants receiving M72/AS01E-4

    Biological: M72/AS01E-4 Mycobacterium tuberculosis investigational vaccine

  • Experimental
    Participants receiving placebo

    Biological: Placebo

Interventions

  • BiologicalM72/AS01E-4 Mycobacterium tuberculosis investigational vaccine

    Participants will receive an intramuscular dose of M72 (recombinant fusion protein) reconstituted with AS01E-4 (an adjuvant system), on Day 1 and Day 29.

  • BiologicalPlacebo

    Participants will receive an intramuscular dose of normal saline (0.9 percent \[%\] sodium chloride \[NaCl\]), on Day 1 and Day 29.

06

What researchers measure

Primary outcomes

  1. IGRA-Positive Cohort: Number of participants with laboratory-confirmed pulmonary tuberculosis (TB)

    Laboratory-confirmed pulmonary TB case is defined as a participant with suspected pulmonary TB presenting with one or more of the following signs or symptoms: unexplained cough, unintentional weight loss, hemoptysis, unexplained fever, night sweats, pleuritic chest pain; who has least 2 positive Mtb test results (positive Mtb culture and/or positive test result from Xpert Ultra or similar assay, excluding "trace positive"), from the same or from different sputum samples collected during the 3 suspected TB visits, preferably within a 7-day time frame, before initiation of TB treatment.

    Time frame: Up to Month 49

Secondary outcomes

  1. IGRA-Negative Cohort: Number of participants with sustained QuantiFERON®-TB Gold Plus assay conversion

    Time frame: Up to Month 49

  2. IGRA-Negative Cohort: Number of participants with laboratory-confirmed pulmonary TB

    Time frame: Up to Month 49

  3. HIV Cohort: Number of participants with laboratory-confirmed pulmonary TB

    Time frame: Up to Month 49

  4. IGRA-Positive Cohort: Number of participants with laboratory-confirmed pulmonary TB (Less stringent laboratory-confirmed pulmonary TB case definition)

    Laboratory-confirmed pulmonary TB case is defined as a participant with suspected pulmonary TB presenting with one or more of the following signs or symptoms: unexplained cough, unintentional weight loss, hemoptysis, unexplained fever, night sweats, pleuritic chest pain; who has at least 1 positive Mtb culture or at least 1 positive result from Xpert Ultra or similar assay (excluding "trace positive"), from the same or from different sputum samples collected during the 3 suspected TB visits, preferably within a 7-day time frame, before initiation of TB treatment. Compose

    Time frame: Up to Month 49

  5. All Cohorts: Number of participants with solicited adverse events (AEs)

    Time frame: Up to 7 days

  6. All Cohorts: Number of participants with unsolicited AEs

    Time frame: Up to 28 days

  7. All Cohorts: Number of participants with serious adverse events (SAEs)

    Time frame: Up to Month 13

  8. All Cohorts: Number of participants with potential immunemediated diseases (pIMDs)

    Time frame: Up to Month 13

  9. All Cohorts: Number of participants with SAEs related to trial participation

    Time frame: Up to Month 49

  10. All cohorts: Number of participants with geometric mean concentration (GMC) of M72-specific antibodies

    Time frame: At Day 1, Month 1, Month 2, Month 7, Month 13, Month 37, and Month 49

  11. All cohorts: Number of participants with seropositivity of M72-specific antibodies

    Time frame: At Day 1, Month 1, Month 2, Month 7, Month 13, Month 37, and Month 49

07

Study locations

54 sites
  • 2201-Gates MRI Investigational Site
    Bandung, 40161, Indonesia
  • 2204-Gates MRI Investigational Site
    Depok, 16424, Indonesia
  • 2202-Gates MRI Investigational Site
    Jakarta, 10430, Indonesia
  • 2205-Gates MRI Investigational Site
    Jakarta, 10510, Indonesia
  • 2203-Gates MRI Investigational Site
    Jakarta, 13230, Indonesia
  • 1205-Gates MRI Investigational Site
    Eldoret, 30100, Kenya
  • 1203-Gates MRI Investigational Site
    Homa Bay, 40300, Kenya
  • 1206-Gates MRI Investigational Site
    Kericho, 20200, Kenya
  • 1207-Gates MRI Investigational Site
    Kilifi, 80108, Kenya
  • 1202-Gates MRI Investigational Site
    Kisumu, 40100, Kenya
  • 1208-Gates MRI Investigational Site
    Machakos, 90100, Kenya
  • 1204-Gates MRI Investigational Site
    Mombasa, 80103, Kenya
  • 1209-Gates MRI Investigational Site
    Nairobi, 00100, Kenya
  • 1201-Gates MRI Investigational Site
    Nairobi, 00202, Kenya
  • 2402-Gates MRI Investigational Site
    Chichiri, 30096, Malawi
  • 2401-Gates MRI Investigational Site
    Lilongwe, 0149, Malawi
  • 1033-Gates MRI Investigational Site
    Bloemfontein, 9301, South Africa
  • 1016-Gates MRI Investigational Site
    Brits, 0250, South Africa
  • 1021-Gates MRI Investigational Site
    Cape Town, 7405, South Africa
  • 1024-Gates MRI Investigational Site
    Cape Town, 7505, South Africa
  • 1006-Gates MRI Investigational Site
    Cape Town, 7530, South Africa
  • 1003-Gates MRI Investigational Site
    Cape Town, 7700, South Africa
  • 1034-Gates MRI Investigational Site
    Cape Town, 7750, South Africa
  • 1022-Gates MRI Investigational Site
    Cape Town, 7784, South Africa
  • 1008-Gates MRI Investigational Site
    Cape Town, 7925, South Africa
  • 1009-Gates MRI Investigational Site
    Durban, 3610, South Africa
  • 1026-Gates MRI Investigational Site
    Durban, 4068, South Africa
  • 1029-Gates MRI Investigational Site
    Durban, 4091, South Africa
  • 1010-Gates MRI Investigational Site
    East London, 5201, South Africa
  • 1028-Gates MRI Investigational Site
    Johannesburg, 1401, South Africa
  • 1031-Gates MRI Investigational Site
    Johannesburg, 1811, South Africa
  • 1018-Gates MRI Investigational Site
    Johannesburg, 1864, South Africa
  • 1020-Gates MRI Investigational Site
    Johannesburg, 2001, South Africa
  • 1007-Gates MRI Investigational Site
    Johannesburg, 2193, South Africa
  • 1014-Gates MRI Investigational Site
    Jouberton, 2574, South Africa
  • 1027-Gates MRI Investigational Site
    Kimberley, 8301, South Africa
  • 1017-Gates MRI Investigational Site
    Klerksdorp, 2570, South Africa
  • 1012-Gates MRI Investigational Site
    Ladysmith, 3370, South Africa
  • 1004-Gates MRI Investigational Site
    Middelburg, 1050, South Africa
  • 1002-Gates MRI Investigational Site
    Mtubatuba, 3935, South Africa
  • 1001-Gates MRI Investigational Site
    Paarl, 7626, South Africa
  • 1013-Gates MRI Investigational Site
    Port Elizabeth, 6001, South Africa
  • 1005-Gates MRI Investigational Site
    Pretoria, 0152, South Africa
  • 1019-Gates MRI Investigational Site
    Rustenburg, 0299, South Africa
  • 1011-Gates MRI Investigational Site
    Soweto, 1818, South Africa
  • 1015-Gates MRI Investigational Site
    Soweto, 2013, South Africa
  • 1025-Gates MRI Investigational Site
    Tembisa, 1632, South Africa
  • 1032-Gates MRI Investigational Site #1
    Tembisa, 1632, South Africa
  • 1030-Gates MRI Investigational Site
    Vereeniging, 1935, South Africa
  • 1023-Gates MRI Investigational Site
    Worcester, 6850, South Africa
  • 1302-Gates MRI Investigational Site
    Lusaka, 10101, Zambia
  • 1303-Gates MRI Investigational Site
    Lusaka, 412, Zambia
  • 1301-Gates MRI Investigational Site
    Lusaka, 50697, Zambia
  • 1304-Gates MRI Investigational Site
    Ndola, 240262, Zambia
08

References and documents

Individual participant data

Plan to share: Yes

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Mar 2024 (actual). Primary completion is estimated for Apr 2028, 49 months after the start.

Of 33 non-industry phase 3 interventional studies under Tuberculosis, half reached primary completion within 54 months of starting (the median), counting those still running; a quarter within 38 and three quarters within 67. This study's planned 49 months is close to that.

Counting every sponsor, half of 40 studies reached it within 55 months; a quarter within 38 and three quarters within 76.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 25, 2023
First posted
Oct 2, 2023
StartActual
Mar 5, 2024
Primary completionEst.
Apr 2028
CompletionEst.
Apr 2028
Last update
Aug 28, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 28, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06062238
Lead sponsor
Gates Medical Research Institute
Collaborators
Wellcome Trust, Bill and Melinda Gates Foundation
Responsible party
Sponsor
First posted
Oct 2, 2023
Start date
Mar 5, 2024
Primary completion
Apr 2028 (estimated)
Completion
Apr 2028 (estimated)
Last update
Aug 28, 2026

Study contacts

Gates MRI
study director · Gates Medical Research Institute

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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