A Phase 3 interventional study of rVA576 and Standard of care (SOC) in Paroxysmal Nocturnal Hemoglobinuria (PNH), sponsored by AKARI Therapeutics. Completed at 3 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-09.
Sponsored by AKARI Therapeutics · Phase 3, Interventional, and Treatment
rVA576 for patients with Paroxysmal Nocturnal Hemoglobinuria (PNH).
rVA576, a small protein complement C5 inhibitor which prevents the cleavage of C5 by C5 convertase into C5a and C5b, will be used in an open label, non-comparative clinical trial in patients with PNH.
Patients will be treated with rVA576 by daily subcutaneous injection in order to determine the safety and efficacy of the drug in these circumstances.
If satisfactory control of the PNH is achieved, and at the discretion of the Principal Investigator (PI), patients will have the option of remaining on rVA576 and being entered into the long term follow-up study.
191 studies on the registry are indexed under Hemoglobinuria, Paroxysmal; 49 are open to participants now.
This study's enrollment of 9 is below the median of 33 across 150 interventional studies indexed under Hemoglobinuria, Paroxysmal.
Browse Hemoglobinuria, Paroxysmal studies →AKARI Therapeutics is the lead sponsor of 8 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
Exclusion Criteria:
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.
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.
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.
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.
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.
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).
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.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
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.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
6 months (SOC plus rVA576), Followed by a further 3 months of (SOC plus rVA576).
Drug: rVA576 · Other: Standard of care (SOC)
6 months on SOC only. Followed by 3 months (SOC plus rVA576).
Drug: rVA576 · Other: Standard of care (SOC)
6 months of treatment, rVA576 plus SOC. Followed by a further 3 months of rVA576 plus SOC. In total, 9 months on rVA576 plus SOC.
6 months on SOC followed by 3 months of treatment with rVA576 plus SOC. In total, 3 months on rVA576 plus SOC.
HB (Haemoglobin) stabilisation rate and the avoidance of packed red blood cells (PRBC) transfusions
Haemoglobin stabilisation rate defined as haemoglobin greater than the set point for each patient during the pre-study randomisation period and the avoidance of PRBC transfusions during the treatment period.
Time frame: 9 months
Number of units of packed red blood cells (PRBC) transfused
Number of units of packed red blood cells (PRBC) transfused from Baseline Day 1 to Day 180
Time frame: Day 1 to Day 180
Percentage of patients who achieve transfusion avoidance
Percentage of patients who achieve transfusion avoidance
Time frame: Day 1 to Day 180
Change in (QOl) Quality of Life score
Change in Quality of Life score
Time frame: Day 1 to Day 180
AUC (LDH)
AUC (Area under the curve) (LDH) Lactate Dehydrogenase
Time frame: Day 1 to Day 180
CH50
CH50 (Classical haemolytic 50% lysis)
Time frame: Day 1 to Day 180
Plan to share: No
No publications or documents are linked to this record.
Ran from Jun 2018 to primary completion in Sep 2020, 26 months.
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 26 months is above 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.
This study is completed, as verified in Nov 2020. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: RVA576
AKARI Therapeutics