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Methylmalonic Acidemia (MMA)Phase 1/2NCT03810690

Open Label Study of mRNA-3704 in Patients With Isolated Methylmalonic Acidemia

A Phase 1/2 study testing mRNA-3704 in people with Methylmalonic Acidemia (MMA) and Metabolism, Inborn Errors, run by ModernaTX, Inc..

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This First-in-Human (FIH) Phase 1/2 study will evaluate mRNA-3704 in patients with methylmalonic acidemia/aciduria (MMA) due to methylmalonyl-coenzyme A mutase (MUT) deficiency between 1 to 18 years of age with elevated plasma methylmalonic acid. Read more about this study

Who is it for?
Ages 1 year and older
What is being tested?
mRNA-3704
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
28 May 2019to 18 Aug 2020
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 1 year and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patients are eligible to be included in the study only if all of the following criteria apply:
  • Confirmed diagnosis of isolated MMA due to MUT deficiency based on the following criteria:
  • Elevated plasma methylmalonic acid concentrations (≥ 100 µmol/L)
  • Presence of normal serum/plasma Vitamin B12 and plasma homocysteine levels
  • Confirmed diagnosis by molecular genetic testing
  • Patient must be ≥ 1 year of age at the time of consent/assent (Inclusion of the first three patients will be restricted to individuals age ≥ 8 years)

Who cannot join

  • Patients are excluded from the study if any of the following criteria apply:
  • Diagnosis of isolated MMA cblA, cblB, or cblD enzymatic subtypes or methylmalonyl-CoA epimerase deficiency or combined MMA with homocystinuria
  • History of organ transplantation
  • Previously received gene therapy for the treatment of MMA.
  • Estimated glomerular filtration rate (GFR) < 30 mL/min/1.73 m2; or patients who receive chronic dialysis

About this study

Official title: A Global, Phase 1/2, Open Label, Dose Escalation Study to Evaluate the Safety, Pharmacodynamics, and Pharmacokinetics of mRNA-3704 in Patients With Isolated Methylmalonic Acidemia Due to Methylmalonyl-CoA Mutase Deficiency

This First-in-Human (FIH) Phase 1/2 study will evaluate mRNA-3704 in patients with methylmalonic acidemia/aciduria (MMA) due to methylmalonyl-coenzyme A mutase (MUT) deficiency between 1 to 18 years of age with elevated plasma methylmalonic acid. The study is designed to characterize baseline biomarker levels followed by assessment of safety, pharmacokinetics, and pharmacodynamics of different doses of mRNA-3704 in patients affected by MMA as part of the Dose Escalation phase.

During the Dose Escalation phase, three dose levels of mRNA-3704 are planned to be investigated in this study among patients with MMA due to MUT deficiency: low dose, mid dose, and high dose. An additional cohort to evaluate a fourth dose level may be considered jointly by the independent SMC and the Sponsor.

Read more

Upon establishment of a dose with acceptable safety and pharmacodynamic activity, additional patients will be enrolled in a Dose Expansion phase to allow for further characterization of the safety and pharmacodynamics of mRNA-3704.

Patients in both phases of study will participate in a pre-dosing observational period, followed by a treatment period, and then a follow-up period after withdrawal of treatment.

Being tested
mRNA-3704
Medical subject headings
Methylmalonic acidemia, Metabolism, Inborn Errors

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • mRNA-3704Biological

    mRNA-3704 dispersion for intravenous (IV) infusion

Study groups in NCT03810690
Study groupRoleWhat they receive
Dose Escalation Phase: Dose Level 1ExperimentalmRNA-3704
Receives: Biological: mRNA-3704
Dose Escalation Phase: Dose Level 2ExperimentalmRNA-3704
Receives: Biological: mRNA-3704
Dose Escalation Phase: Dose Level 3ExperimentalmRNA-3704
Receives: Biological: mRNA-3704
Dose Escalation Phase: Dose Level 4 (optional)ExperimentalmRNA-3704
Receives: Biological: mRNA-3704
Dose Expansion Phase: mRNA-3704ExperimentalNot described
Receives: Biological: mRNA-3704

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of treatment-emergent adverse events

    Measured: Day 1 (initial mRNA-3704 dose) through 52 weeks after final mRNA-3704 dose

  2. Change in plasma methylmalonic acid levels

    Baseline (pre-dose levels) to post-dose levels measured after single and after repeated administrations of mRNA-3704

    Measured: Week -4 through 36 weeks after initial mRNA-3704 dose

Secondary outcomes (5)
  1. Maximum observed concentration (Cmax) after administration of mRNA-3704

    Measured: Baseline through 36 weeks after initial mRNA-3704 dose

  2. Time of Cmax (Tmax)

    Measured: Baseline through 36 weeks after initial mRNA-3704 dose

  3. Area under the plasma concentration-time curve (AUC)

    Measured: Baseline through 36 weeks after initial mRNA-3704 dose

  4. Change in plasma 2-methylcitrate levels

    Baseline (pre-dose levels) to levels measured after single and after repeated administrations of mRNA-3704

    Measured: Week -4 through 36 weeks after initial mRNA-3704 dose

  5. Measurement of anti-PEG antibodies

    Measured: Pre-dose through up to 52 weeks after final mRNA-3704 dose

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Jan 2019
  2. Study start28 May 2019
  3. Primary completion18 Aug 2020
  4. Study completion18 Aug 2020

Why it stopped: Study was terminated before the start of dosing due to a business decision and not due to safety or efficacy reasons.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03810690
Sponsor's protocol ID
mRNA-3704-P101
Status last verified
Nov 2020
First submitted
14 Jan 2019
Last updated
13 Nov 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing mRNA-3704 in people with Methylmalonic Acidemia (MMA) and Metabolism, Inborn Errors, run by ModernaTX, Inc..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 13 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of treatment-emergent adverse events (time frame: Day 1 (initial mRNA-3704 dose) through 52 weeks after final mRNA-3704 dose). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Nov 2020.

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