A study of treatment for polyarteritis nodosa in children

• Register: EUCTR
• Last refreshed on: 12 April 2021
• Main ID: EUCTR2013-004668-71-PT
• Date of registration: 16/02/2016
• Prospective Registration: Yes
• Primary sponsor: University College London
• Public title: A study of treatment for polyarteritis nodosa in children
• Scientific title: An Open Label Randomised Controlled Trial of Mycophenolate Mofetil Versus Cyclophosphamide for the Induction of Remission of Childhood Polyarteritis Nodosa - MYPAN
• Target sample size: 40
• Recruitment status: Not Recruiting
• URL: https://www.clinicaltrialsregister.eu/ctr-search/search?query=eudract_number:2013-004668-71
• Study type: Interventional clinical trial of medicinal product
• Study design: Controlled: yes; Randomised: yes; Open: yes; Single blind: no; Double blind: no; Parallel group: no; Cross over: no; Other: no; If controlled, specify comparator, Other Medicinial Product: yes; Placebo: no; Other: no; Number of treatment arms in the trial: 2
• Phase: Human pharmacology (Phase I): no Therapeutic exploratory (Phase II): no Therapeutic confirmatory - (Phase III): yes Therapeutic use (Phase IV): no

Countries of recruitment

Belgium, Croatia, Czech Republic, Germany, Greece, Italy, Netherlands, Poland, Portugal, Slovenia, Spain, Sweden, Turkey, United Kingdom

Contacts

• Name: Mrs Farhat Gilani
• Affiliation: University College London

• Name: Mrs Farhat Gilani
• Affiliation: University College London

Key inclusion & exclusion criteria

Inclusion criteria:
1. Age at screening = 4 and = 18 years
2. Children to be included must fulfil the new EULAR/PRINTO/PReS classification criteria for childhood systemic PAN (4) as defined by:
Histopathological evidence of necrotising vasculitis in medium- or small-sized arteries or angiographic abnormality as a mandatory criterion (4); plus one of the following five:
i. skin involvement
ii. myalgia or muscle tenderness
iii. hypertension
iv. peripheral neuropathy
v. renal involvement
3. Newly diagnosed* and with active disease that would normally require treatment with CYC:
i. One or more of major PVAS items (see below)
ii. and / or three or more minor PVAS items,
iii. and/or either of the two additional entry criteria:
1. Severe systemic inflammation and/or features of macrophage activation syndrome due to PAN where the investigator would routinely use cyclophosphamide
2. Demonstration of severe angiographic changes consistent with systemic PAN with other compatible clinical features, but not necessarily including the major PVAS items listed above

4. Written informed consent for study participation obtained from the patient or parents / legal guardian, with assent as appropriate by the patient, depending on the level of understanding.

Sufficient disease activity for trial entry (see inclusion criteria 3 above) requires at least one major or 3 minor PVAS items as listed below, and/or at least one of the additional criteria listed:

Major PVAS items (indicated in bold in the PVAS form):
Trial entry criteria or major relapse require the recurrence or new appearance of major organ involvement, if they are attributable to active vasculitis:
1. Severe cutaneous vasculitis: significant infarct, ulcer or gangrene. Other significant cutaneous vasculitis such as widespread bullous vasculitic skin disease would also be an inclusion criterion.
2. Threatened vision from any of: retinal vasculitis, retinal vessel thrombosis, scleritis, retinal exudates, or retinal haemorrhages.
3. Major chest involvement: major pulmonary bleeding, with shifting pulmonary infiltrates; other causes of bleeding should be excluded if possible.
4. Cardiovascular involvement: loss of pulses, bruits over accessible arteries, blood pressure discrepancy more than 10 mmHg in any limb, claudication of extremities, ischaemic cardiac pain, cardiomyopathy, congestive cardiac failure, valvular heart disease, pericarditis.
5. Abdominal involvement: abdominal pain, blood in stools or bloody diarrhoea, or bowel ischaemia. Pancreatitis, whilst not specifically listed as a PVAS item, would also be an indication for inclusion.
6. Renal involvement: hypertension, significant proteinuria, significant haematuria (if microscopic haematuria > 5 red blood cells per high power field, or red cell casts), GFR < 80 mls/min/1.73m2 , rise in creatinine > 10% or creatinine clearance (GFR) fall > 25%. Biopsy is strongly recommended for recurrent haematuria or unexplained rise in creatinine EXCEPT where large renal arterial aneurysms have been demonstrated.
7. Nervous system involvement: meningitis or encephalitis, organic confusion /cognitive dysfunction, non-hypertensive seizures, stroke, cord lesion, cranial nerve palsy, sensory peripheral neuropathy, or motor mononeuritis multiplex. (Imaging of brain/cord providing supportive evidence that these lesions are due to vasculitis are usually present for those items pertaining to the brain or cord).


Minor PVAS items:
Minor entry criteria or minor relapse require
Exclusion criteria:
Exclusions related to vasculitis type and/ or severity
1. Diagnosis of alternative vasculitic syndrome e.g. HSP, or ANCA vasculitis
2. Patients requiring dialysis

Exclusions related to general health
3. Evidence of other significant uncontrolled concomitant disease that in the investigator’s view would preclude or interfere with patient participation. This will be recorded in the screening log.
4. Primary or secondary immunodeficiency including known history of human immunodeficiency virus (HIV) infection
5. Known active and/or chronic infection of any kind (excluding fungal nail and/or minor fungal skin infections)
6. History of serious recurrent or chronic infection including tuberculosis (a screening chest radiograph will be performed if not performed within 12 weeks prior to randomisation)
7. History of cancer, including solid tumours, haematologic malignancies and carcinoma in situ
8. Participation in a clinical trial testing a medicinal product within 3 months (12 weeks) preceding randomisation for the MYPAN trial.

Exclusions related to medications
9. History of a severe allergic or anaphylactic reaction to any of the study medications or their excipients
10. More than 3g of IV methylprednisolone within one month (4 weeks) prior to randomisation
11. More than 3 weeks of oral prednisolone/prednisone at dose of 2mg/Kg once daily within one month (4 weeks) prior to randomisation
12. Treatment with MMF or azathioprine for more than two weeks; or more than one intravenous dose of cyclophosphamide (>500 mg/m2) within one month (4 weeks) prior to randomisation
13. Rituximab or high dose intravenous immunoglobulin within the last twelve months (48 weeks)
14. Intolerance or contraindications to intravenous glucocorticoids
15. Participant of reproductive potential not prepared to use a reliable means of contraception (e.g. hormonal contraceptive patch, intrauterine device, physical barrier) throughout study participation;
a. Sexually active female not prepared to use two reliable forms of contraception for the complete duration of the trial


Exclusions related to laboratory findings
16. Positive urine human chorionic gonadotropin (hCG) measured at screening / (if appropriate) or a positive urine pregnancy test prior to study entry or breastfeeding
17. Positive tests for hepatitis B surface antigen (HBsAg), hepatitis B core antibody (HBcAb) or hepatitis C serology at randomisation
18. Absolute neutrophil count <1.5 x 109/l
19. Estimated GFR <15 mL/min/1.73m2 (calculated using the Schwartz GFR formula – See section 7.4.2 for formula) at randomisation





Age minimum:
Age maximum:
Gender:
Female: yes
Male: yes

Health Condition(s) or Problem(s) studied

Therapeutic area: Diseases [C] - Immune System Diseases [C20]

Childhood systemic polyarteritis nodosa (PAN)
MedDRA version: 18.1 Level: LLT Classification code 10036026 Term: Polyarteritis nodosa of childhood System Organ Class: 100000004866

Intervention(s)

Trade Name: CellCept
Product Name: CellCept (Mycophenolate Mofetil)
Pharmaceutical Form: Powder for oral suspension
INN or Proposed INN: Mycophenolate mofetil
CAS Number: 24280-93-1
Concentration unit: g/ml gram(s)/millilitre
Concentration type: range
Concentration number: 1g-5ml

Trade Name: CellCept
Product Name: CellCept (Mycophenolate Mofetil)
Pharmaceutical Form: Capsule, hard
INN or Proposed INN: Mycophenolate mofetil
CAS Number: 24280-93-1
Concentration unit: mg milligram(s)
Concentration type: not less then
Concentration number: 250-

Trade Name: CellCept (Mycophenolate Mofetil)
Product Name: CellCept (Mycophenolate Mofetil)
Pharmaceutical Form: Film-coated tablet
INN or Proposed INN: Mycophenolate mofetil
CAS Number: 24280-93-1
Concentration unit: mg milligram(s)
Concentration type: not less then
Concentration number: 500-

Trade Name: Cyclophosphamide
Product Name: Cyclophosphamide
Pharmaceutical Form: Powder for solution for injection
INN or Proposed INN: CYCLOPHOSPHAMIDE
CAS Number: 50-18-0
Concentration unit: mg/ml milligram(s)/millilitre
Concentration type: equal
Concentration number: 20-

Primary Outcome(s)

Main Objective: Is mycophenelate mofetil (MMF) as effective as cyclophosphamide (CYC) at inducing remission in children with polyarteritis nodosa (PAN)?

Primary end point(s): The proportion of patients achieving remission within 6 months, as defined as a PVAS score of zero on two consecutive readings (both within six months of randomisation) more than one month apart, with adherence to the protocolised corticosteroid taper.

Secondary Objective: To determine whether there is a difference between CYC and MMF in terms of time to remission, vascular damage, side effects, impact on the patient (quality of life) and cost effectiveness to the health care provider.

Secondary Outcome(s)

Secondary end point(s): 1. Remission within six months (24 weeks) of randomisation defined as paediatric vasculitis activity score (PVAS) of zero on two consecutive readings = one month (4 weeks) apart, irrespective of adherence to a protocolised corticosteroid taper
2. Time to remission, defined as PVAS of zero on two consecutive readings = one month (4 weeks) apart, with adherence to a protocolised corticosteroid taper, measured from randomisation
3. Paediatric vasculitis damage index (PVDI; modified from the adult VDI) at 6, 12 and 18 months (24, 48 and 72 weeks) after randomisation
4. A functional outcome score (CHAQ) and quality of life measure (CHQ) both of which are validated and available in the different translations (including English) required by the PRINTO centres involved in MYPAN; at 6, 12 and 18 months (24, 48 and 72 weeks) after randomisation
5. Health economics measure: Health Utility Index II at 6, 12 and 18 months (24, 48 and 72 weeks)
6. Cumulative corticosteroid dose (at 6 months (24 weeks) and 18 months (72 weeks)): especially important in paediatrics since corticosteroid-related growth retardation (in addition to all the other well documented side effects of corticosteroids that affect adults) is an important concern
7. Growth parameters (height and weight, expressed as age/sex Z scores), and including body mass index at 18 months (72 weeks)
8. Relapses (time to first relapse, and number of relapses) within 18 months (72 weeks) from randomisation
9. Adverse events, including drug toxicity
10. Withdrawal from trial due to drug intolerance
11. MPA 12 hour trough plasma levels
12. Time from randomisation to death

Secondary ID(s)

2013-004668-71

11/0499

2013-004668-71-GB

Results

• Results available: Yes
• Date Posted: 03/01/2021
• Date Completed: 26/06/2020
• URL: https://www.clinicaltrialsregister.eu/ctr-search/trial/2013-004668-71/results