ClinicalTrials.gg
RecruitingNCT06932744Updated May 9, 2025

Study of Safety and Efficacy of MY008211A in Paroxysmal Nocturnal Hemoglobinuria (PNH) Patients Who Are Naive to Complement Inhibitor Therapy

A Phase 3 interventional study of MY008211A tablets and Eculizumab Injection in Paroxysmal Nocturnal Haemoglobinuria (PNH), sponsored by Wuhan Createrna Science and Technology Co., Ltd. Recruiting at 2 sites in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-05-09.

Sponsored by Wuhan Createrna Science and Technology Co., Ltd · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2025, 10 months ago, but the record still lists the study as recruiting.
  • Registered 7 months after the study started (first participant enrolled Aug 2024, registered Apr 2025).
  • Started Aug 2024; still recruiting 2 years 2 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
66
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
15th of 47
66 · median 40
Started
2024
with 11 others
Phase 3
17 of 51
7 open now
Primary completion
2025-12
later than 7 of 28 live
Registered
33rd of 51
by date
Lead sponsor
8 of 51
Wuhan Createrna Science and Technology Co., Ltd

Among the 51 studies in Hemoglobinuria, Paroxysmal with a site in China, this one is the 15th largest by planned enrollment of the 47 interventional ones, is one of 12 that started in 2024, is one of 17 in phase 3, reaches primary completion later than 7 of the 28 other live ones, and was the 33rd 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. 12 started in 2024.

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

The main purpose of this study is to evaluate the efficacy of MY008211A compared to eculizumab in PNH patients.

Read the detailed description

This is a multi-center, randomized, open-label, active comparator-controlled, parallel group study. The purpose of this study is to determine whether MY008211A compared to eculizumab is efficacious and safe for the treatment of PNH patients who were naive to complement inhibitor therapy.

03

Conditions studied

  • Paroxysmal Nocturnal Haemoglobinuria (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

  1. 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%.
  2. Mean level \<100 g/L at screening.
  3. LDH > 1.5 x (ULN) at screening.
  4. 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:

  1. Patients with reticulocytes \<100x10\^9/L; \<30x10\^9/L; neutrophils \<0.5x10\^9/L.
  2. History of recurrent invasive infections caused by encapsulated organisms,e.g. meningococcus or pneumococcus.
  3. Known or suspected hereditary complement deficiency.
  4. Previous bone marrow or hematopoietic stem cell transplantation.
  5. Previous splenectomy.
  6. A history of within 5 years before screening, except cured local basal cell carcinoma of the skin and carcinoma in situ of the cervix.
Terms in these criteria, in plain language(5)

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.

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
66 participants (estimated)

Study arms

  • Experimental
    MY008211A tablets

    MY008211A tablets 400mg BID

    Drug: MY008211A tablets

  • Active comparator
    Eculizumab

    Eculizumab Injection

    Drug: Eculizumab Injection

Interventions

06

What researchers measure

Primary outcomes

  1. The proportion of Participants With Sustained Hemoglobin Levels of ≥ 120 g/L in the Absence of Red Blood Cell Transfusions

    The proportion of patients with sustained hemoglobin levels ≥ 120 g/L among those without RBC transfusion (defined as no red blood cell infusion after D14 to D168).

    Time frame: between Day 126 and Day 168

Secondary outcomes

  1. The proportion of subjects with an increase in hemoglobin concentration ≥ 20 g/L from baseline among subjects who do not receive RBC transfusion

    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 D14 to D168).

    Time frame: between Day 126 and Day 168

  2. The proportion of patients with LDH < 1.5 ULN among those without RBC transfusion.

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

    Time frame: between Day 126 and Day 168

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

    Change (Expressed as Percentages) in LDH level from baseline

    Time frame: between Day 126 and Day 168

  4. Change in reticulocyte count from baseline

    Change in reticulocyte count from baseline

    Time frame: between Day 126 and Day 168

  5. The proportion of patients without RBC transfusion

    The proportion of patients without RBC transfusion

    Time frame: between Day 14 and Day 168

  6. Change in FACIT-F score from baseline

    Change from baseline in FACIT-Fatigue scores. The FACIT-Fatigue is a 13-item questionnaire with support for its validity and reliability in PNH that assesses patient self-reported fatigue and its impact on daily activities and function. All FACIT scales are scored so that a high score is better. As each of the 13 items of the FACIT-F Scale ranges from 0-4, the range of possible scores is 0-52, with 0 being the worst possible score and 52 the best.

    Time frame: between Day 126 and Day 168

  7. The Clinical BTH Rate

    The Clinical BTH Rate

    Time frame: between Day 1 and Day 168

  8. The Major Adverse Vascular Events Rate

    The Major Adverse Vascular Events Rate

    Time frame: between Day 1 and Day 168

07

Study locations

1 of 2 sites recruiting
08

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 Aug 2024 (actual). Primary completion is estimated for Dec 2025, 16 months after the start.

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 16 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
Apr 10, 2025
First posted
Apr 17, 2025
StartActual
Aug 30, 2024
Primary completionEst.
Dec 30, 2025
CompletionEst.
Dec 30, 2025
Last update
May 9, 2025
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 May 9, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06932744
Lead sponsor
Wuhan Createrna Science and Technology Co., Ltd
Responsible party
Sponsor
First posted
Apr 17, 2025
Start date
Aug 30, 2024
Primary completion
Dec 30, 2025 (estimated)
Completion
Dec 30, 2025 (estimated)
Last update
May 9, 2025

Study contacts

Wuhan Createrna Science and Technology Co.,Ltd
Contact
lcyxzx@createrna.com
027-68788900 ext. +86

Oversight

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

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