ClinicalTrials.gg
Not yet recruitingNCT07816237Updated Sep 11, 2026

A Multicenter, Randomized, Open-Label, Positive Controlled Phase III Study to Evaluate the Efficacy and Safety of VSA012 Injection in Participants With Paroxysmal Nocturnal Hemoglobinuria Who Are Naive to Complement Inhibitor Therapy

A Phase 3 interventional study of VSA012 and Eculizumab (Soliris®) in Paroxysmal Nocturnal Hemoglobinuria, PNH, sponsored by Bisirna Therapeutics (Suzhou) Co., Ltd.. Not yet recruiting at 14 sites in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-09-11.

Sponsored by Bisirna Therapeutics (Suzhou) Co., Ltd. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
70
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 51 studies in Hemoglobinuria, Paroxysmal with a site in China — 21 open to participants now, 29 under way, 11 of them phase 3. Hemoglobinuria, Paroxysmal · China.

Planned enrollment
13th of 47
70 · median 40
Started
2026
with 6 others
Phase 3
17 of 51
7 open now
Primary completion
2027-09
later than 20 of 28 live
Registered
50th of 51
by date

Among the 51 studies in Hemoglobinuria, Paroxysmal with a site in China, this one is the 13th largest by planned enrollment of the 47 interventional ones, is one of 7 that started in 2026, is one of 17 in phase 3, reaches primary completion later than 20 of the 28 other live ones, and was the 50th registered.

By phase

51 studies; the count open now beside each. This study's row is marked.

Phase 3this study17 · 7 open
Phase 113 · 5 open
Phase 213 · 4 open
Observational4 · 2 open
No phase1 · 1 open
Phase 1/21 · 1 open
Phase 2/31 · 1 open
Phase 41 · 0 open

By the year they started

First in 2012; this study’s year is marked. 7 started in 2026.

Size and results

Median enrollment 40 across the 47 interventional studies, 402 across the 4 observational. Of the 19 that completed or were terminated, 3 (16%) have results posted.

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02

Study summary

A study of the efficacy and safety of VSA012 Injection compared to eculizumab for 24 weeks in patients with PNH.

03

Conditions studied

  • Paroxysmal Nocturnal Hemoglobinuria, PNH
04

Who can participate

Ages eligible
18 Years to 75 Years
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

  • Male and female participants ≥ 18 years of age and ≥ 18.0 kg/m2 with a diagnosis of PNH confirmed by high-sensitivity flow cytometry with clone size≥10%.
  • Mean level \<100 g/L at screening.
  • LDH > 1.5 x (ULN) at screening.
  • Vaccination against Neisseria meningitidis infection is required prior to the
  • start of study treatment. If not received previously, vaccination against
  • Streptococcus pneumoniae and Haemophilus influenzae infections should be given.

Exclusion criteria

Exclusion Criteria:

  • Known or suspected hereditary or acquired complement deficiency;
  • Presence or suspicion of a systemic active bacterial, viral, or fungal infection
  • History of infection with capsular bacteria (e.g., meningococcus, pneumococcus, etc.)
  • Patients with reticulocytes \<100x10\^9/L; \<30x10\^9/L; neutrophils \<0.5x10\^9/L.
  • Positive of , or HCVAb.
  • History of recurrent invasive infections caused by encapsulated organisms,e.g. meningococcus or pneumococcus.
  • Previous splenectomy.
  • A history of within 5 years before screening
Terms in these criteria, in plain language(7)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

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.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
70 participants (estimated)

Study arms

  • Experimental
    Cohort1

    Drug: VSA012

  • Active comparator
    Cohort2

    Drug: Eculizumab (Soliris®)

Interventions

06

What researchers measure

Primary outcomes

  1. The proportion of patients with sustained hemoglobin levels ≥ 120 g/L among those without RBC transfusion (defined as no red blood cell infusion after W2 to W26).

    Time frame: between Week 2 and Week 26

Secondary outcomes

  1. Proportion of participants achieving a sustained increase from baseline in hemoglobin levels of ≥ 20 g/L assessed among those without RBC transfusion (defined as no red blood cell infusion after W2 to W26).

    Time frame: between Week 20 and Week 26

  2. The proportion of patients with hemolysis controlled (defined as LDH < 1.5 ULN) among those without RBC transfusion

    Time frame: between Week 20 and Week 26

  3. Change (Expressed as Percentages) in Hb level from baseline

    Time frame: between Week 20 and Week 26

  4. The proportion of patients without RBC transfusion

    Time frame: between Week 2 and Week 26

  5. Change in reticulocyte count from baseline

    Time frame: between Week 20 and Week 26

  6. Change in Total bilirubin count from baseline

    Time frame: between Week 20 and Week 26

  7. Change in FACIT-F score from baseline

    Time frame: between Week 20 and Week 26

  8. The Clinical BTH Rate

    Time frame: between Day 1 and Week 26

  9. The Major Adverse Vascular Events Rate

    Time frame: between Day 1 and Week 26

  10. Incidence and severity of AEs

    Time frame: between Day 1 and Week 26

Other outcomes

  1. Incidence and severity of AEs

    Time frame: between Day 1 and Week 26

07

Study locations

14 sites
08

References and documents

Individual participant data

Plan to share: Undecided

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 Oct 2026; primary completion for Sep 2027, 11 months later.

Of 35 industry-sponsored phase 3 interventional studies under Hemoglobinuria, Paroxysmal, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 41. This study's planned 11 months is below that.

Counting every sponsor, half of 35 studies reached it within 23 months; a quarter within 15 and three quarters within 41.

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

Registered
Sep 4, 2026
First posted
Sep 11, 2026
StartEst.
Oct 29, 2026
Primary completionEst.
Sep 30, 2027
CompletionEst.
Dec 31, 2029
Last update
Sep 11, 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 Sep 11, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07816237
Lead sponsor
Bisirna Therapeutics (Suzhou) Co., Ltd.
Responsible party
Sponsor
First posted
Sep 11, 2026
Start date
Oct 29, 2026 (estimated)
Primary completion
Sep 30, 2027 (estimated)
Completion
Dec 31, 2029 (estimated)
Last update
Sep 11, 2026

Study contacts

Charlene Si
Contact
charlene.si@bisirna.com
+86-021-6107 5030

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 Sep 2026. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drug tested here: VSA012

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