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Not yet recruitingNCT07633119Updated Jun 8, 2026

A Phase Ⅲ Clinical Study of SNA02-48 Injection

A Phase 3 interventional study of SNA02-48 and Human tetanus immunoglobulin (HTIG) in Tetanus, sponsored by Sinovac Life Sciences Co., Ltd.. Not yet recruiting at 30 sites in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-08.

Sponsored by Sinovac Life Sciences Co., Ltd. (part of Sinovac Biotech Co., Ltd) · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
600
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The primary objective of this clinical trial is to compare the efficacy and safety of SNA02-48 injection with Human Tetanus Immunoglobulin (HTIG) for tetanus prophylaxis.

02

Conditions studied

  • Tetanus

Browse trials for

03

In context

Tetanus

318 studies on the registry are indexed under Tetanus; 29 are open to participants now.

This study's planned enrollment of 600 is above the median of 418 across 280 interventional studies indexed under Tetanus.

Browse Tetanus studies →

Lead sponsor

Sinovac Life Sciences Co., Ltd. is the lead sponsor of 26 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 and older
Sexes eligible
All
Accepts healthy volunteers
No

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

  1. Males or females aged 18 years and above;
  2. Participants who can understand and voluntarily sign the form;
  3. Participants with high-risk tetanus exposure;
  4. Participants of and their sexual partners voluntarily adopt effective measures from the time the participant signs the informed consent form until 6 months after administration, with no plans for sperm or egg donation.

Exclusion criteria

Exclusion Criteria:

  1. Suspected or confirmed tetanus ;
  2. A history of previous tetanus infection;
  3. A known history of 3 or more doses of tetanus toxoid or vaccines containing tetanus toxoid, or fewer than 3 previous doses but with the last dose of tetanus toxoid or vaccines containing tetanus toxoid administered within 6 months prior to the administration of the product;
  4. Known to the investigational product (including , HTIG, and other therapeutic monoclonal antibodies), or suffering from severe allergic diseases that, in the investigator's judgment, may impair the participant's safety; Other protocol defined Inclusion/Exclusion criteria may apply.
Terms in these criteria, in plain language(6)

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.

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.

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.

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.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
600 participants (estimated)

Study arms

  • Experimental
    SNA02-48

    If randomized to SNA02-48, participant will receive a single IM gluteal injection of SNA02-48

    Drug: SNA02-48

  • Active comparator
    Human tetanus immunoglobulin (HTIG)

    If randomized to HTIG, participant will receive a single IM gluteal injection of HTIG

    Drug: Human tetanus immunoglobulin (HTIG)

Interventions

  • DrugSNA02-48

    IM gluteal injection

  • DrugHuman tetanus immunoglobulin (HTIG)

    IM gluteal injection

06

What researchers measure

Primary outcomes

  1. The proportion of participants with an increase of anti-tetanus neutralizing antibody titers (∆ titers) over protective level.

    Time frame: Baseline up to 12 hours after receipt of study drug

Secondary outcomes

  1. The incidence of tetanus

    Time frame: Up to 105 days after receipt of study drug

  2. anti-tetanus neutralizing antibody titers

    Time frame: Up to 90 days after receipt of study drug

  3. Incidence of adverse events

    Time frame: Up to 105 days after receipt of study drug

  4. Incidence of severe adverse events (SAEs)

    Time frame: Up to 105 days after receipt of study drug

  5. To evaluate the plasma concentration of SNA02-48

    Time frame: Up to 90 days after receipt of study drug

  6. Incidence of anti-drug antibody (ADA) and neutralizing antibody (Nab)

    Time frame: Up to 90 days after receipt of study drug

07

Study locations

30 sites
08

References and documents

Individual participant data

Plan to share: No

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

Start is estimated for Jun 2026; primary completion for Mar 2027, 9 months later.

Of 54 industry-sponsored phase 3 interventional studies under Tetanus, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 21. This study's planned 9 months is below that.

Counting every sponsor, half of 55 studies reached it within 12 months; a quarter within 6 and three quarters within 21.

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

Registered
Jun 2, 2026
First posted
Jun 8, 2026
StartEst.
Jun 28, 2026
Primary completionEst.
Mar 31, 2027
CompletionEst.
May 31, 2027
Last update
Jun 8, 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 Jun 8, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07633119
Responsible party
Sponsor
First posted
Jun 8, 2026
Start date
Jun 28, 2026 (estimated)
Primary completion
Mar 31, 2027 (estimated)
Completion
May 31, 2027 (estimated)
Last update
Jun 8, 2026

Study contacts

Chuanlin Wang, MD
Contact
wangchuanlinvip@163.com
+86 13911883012

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 not yet recruiting, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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