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A multi-centre study of the safety, tolerability and effects of intravenously administered Cyclic Pyranopterin Monophosphate (cPMP) in patients with molybdenum cofactor deficiency type A.

A multi-centre, open-label study of the safety, tolerability and pharmacodynamics of intravenously administered Cyclic Pyranopterin Monophosphate (cPMP) (precursor Z) in patients with molybdenum CoFactor deficiency type A

Status
Suspended
Phases
Phase 1
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12609000849291
Enrollment
10
Registered
2009-09-30
Start date
2009-09-30
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The purpose of this study is an attempt at treating neonates born with Molybdenum Cofactor Deficiency Type A. This study is a multi-site study open to participants living in ANY country WORLDWIDE, it is not restricted to the countries listed above.

Interventions

Cyclic pyranopterin monophosphate (cPMP), also known as precursor Z, which has been extracted from cultures of E. coli and purified. The first day treatment will be a total dose of 80 micrograms per kilogram of body weight of cPMP and administered as four intravenous (IV) infusions. On days 2, 3 and 4, the dose will be administered as two infusions. On days 5 and 6, the dose will be administered as one infusion over three hours and; on days 7 to 12, the dose will be administered as one infusion

Cyclic pyranopterin monophosphate (cPMP), also known as precursor Z, which has been extracted from cultures of E. coli and purified. The first day treatment will be a total dose of 80 micrograms per kilogram of body weight of cPMP and administered as four intravenous (IV) infusions. On days 2, 3 and 4, the dose will be administered as two infusions. On days 5 and 6, the dose will be administered as one infusion over three hours and; on days 7 to 12, the dose will be administered as one infusion over one hour. On subsequent days, the daily dose will be 160 microgram per kilogram administered as an infusion over one hour. The dose and regimen will be adjusted according to the urine metabolites, sulphur cysteine and sulphate levels. The administration of cPMP will continue for a minimum of 90 days provided the patient is deriving a benefit from cPMP treatment.

Sponsors

PMP(Vic) Pty Ltd
Lead SponsorCommercial sector/Industry

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
0 to 6 Weeks
Healthy volunteers
No

Inclusion criteria

-Neonate or infant, less then 6 weeks at the time of diagnosis, age less than 8 weeks at start of treatment with the study medication. It is important to diagnose the condition and initiate treatment as soon after birth as possible. -Documented diagnosis of molybdenum cofactor deficiency (MoCD) Type A based on the absence of cPMP and the presence of sulfite and s-sulfocysteine in the urine, absence of urothione in the urine and genetic analysis showing a mutation in the MOCS1 gene - A parent or legal guardian voluntarily provided written informed consent to participate in the study and comply with study procedures. - Approval of the study protocol by the local Human Research Ethics Committee (HREC) / Independent Review Board (IRB) and government or regulatory authorities (if applicable).

Exclusion criteria

- MoCD Type B (MOCS2 mutation) or Type C (gephyrin gene mutation) - Sulfite oxidase deficiency - Patients older than 6 weeks at the time of diagnosis

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026