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Idiopathic Parkinson DiseasePhase 1NCT05832775

Study to Assess the Safety of MRx0029 or MRx0005 Compared to Placebo, in People With Parkinson's

A Phase 1 study testing MRx0029 and MRx0005 in people with Idiopathic Parkinson Disease, run by 4D pharma plc.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This is a first-in-human study to evaluate the safety and tolerability of repeat oral administrations of MRx0029 (20 participants) or MRx0005 (20 participants) in participants diagnosed with idiopathic PD. Read more about this study

Who is it for?
Ages 40 to 85 years
Conditions the study is for
Idiopathic Parkinson Disease
What is being tested?
MRx0029 and MRx0005
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
May 2022to Apr 2023
Phase
Phase 1
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 40 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of idiopathic PD according to the UKPDS-BBCDC
  • Able to understand and willing to provide informed consent and able to comply with the study procedures and restrictions.
  • Male or female participants age ≥ 40 or ≤ 85 years of age.
  • BMI ≥ 18.0 to ≤ 35.0 kg/m2, inclusive, where BMI (kg/m2) is calculated by body weight (kg)/height2 (m2).
  • Hoehn \& Yahr (H\&Y) Stage I to II (if on levodopa the participant should be classed as Stage I to II in an 'ON' period)
  • A documented diagnosis of PD
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  • If presently being medically treated for PD, they should be on a stable dose unchanged within the 30 days prior to screening and not be expected to require any adjustments or start any new PD medication for the duration of their participation in the study.
  • No clinically relevant abnormal medical history, or abnormal findings on physical examination, vital signs, ECG, or laboratory tests
  • Has been fully vaccinated with an approved Covid-19 vaccine
  • Male and female participants are eligible to enter provided they follow the contraception criteria for the study.

Who cannot join

  • Participants with significant motor fluctuations
  • Parkinson syndromes
  • Known carriers of familial PD genes
  • History and/or current presence of clinically significant CNS disease other than PD.
  • Montreal Cognitive Assessment (MoCA) <24
  • No history of spontaneous constipation since diagnosis
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  • Participants who are <70% compliant to completing their e-daily assessed at Treatment Period 1, Day 1.
  • Are non-compliant with prescribed PD medication
  • Comorbidities that have not been optimally controlled for the last 3 months prior to screening.
  • Participants with known Type 1 or Type 2 diabetes mellitus or a HbAlc result. indicative of diabetes/pre-diabetes.
  • Have an active or recent malignant disease or any concomitant end-stage organ disease.
  • Participants with known GI fistula, feeding tubes, or inflammatory bowel disease.
  • Participants who had recent abdominal surgery (6 months before the screening visit).
  • Participants with GI disease resulting in an inability to take oral medication, malabsorption syndrome, prior surgical procedures affecting absorption, uncontrolled GI disease
  • Participants with conditions that may increase the risk of generalized peritonitis
  • Dysphagia to the extent it would affect the participant's ability to swallow the IMP during their participation
  • Anything which in the opinion of the investigator prevents the participant being able to give urine or stool samples.
  • Positive serology for hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (anti-HCV), or human immunodeficiency virus antibodies (anti HIV) 1/2 at screening.
  • Previous history or current active tuberculosis (TB), or taking medication for the treatment of TB.
  • Participant has severe or moderate renal impairment (defined as creatinine clearance <60 mL/min) estimated using Cockcroft-Gault Equation.
  • Participants taking anti-cholinergic medication or amantadine.
  • Participants with congenital, acquired or drug-related immunodeficiency.
  • Participants who use systemic corticosteroids or systemic immunosuppressants for any reason within 30 days prior to screening.
  • Participants taking ad hoc anti-inflammatory medication within 30 days of screening are excluded.
  • Participants taking dopamine antagonists, such as the neuroleptics or metoclopramide are excluded.
  • Participants who are allergic to the following antibiotics: amoxicillin/clavulanic acid, ampicillin, chloramphenicol, clarithromycin, clindamycin, imipenem, or metronidazole.
  • Participants who have completed a course of systemic antibiotics in the 30 days prior to screening.
  • Participants using prebiotic and probiotic supplements
  • Donation or loss of 500 mL blood during the 3 months before screening.
  • Current or history of alcohol or drug abuse or other dependence (except nicotine dependence) within the last 2 years prior to IMP administration.
  • Positive urine drug screen (if not due to concomitant medication) or alcohol breath test.
  • Receipt of a positive COVID-19 test result
  • Participant is currently enrolled in or has not yet completed at least 30 days since ending other investigational device or study drug(s), or participant receiving other investigational agent(s).
  • Received a live vaccine within 4 weeks prior to enrolling in this trial or plan for any such vaccination during the trial or within 4 months after study drug administration. Administration of inactivated vaccines (for example, inactivated influenza vaccines is allowed.).
  • Legal incapacity or limited legal capacity.

About this study

Official title: A First-in-human, Double-blind, Placebo-controlled, Multicentre, Cross-over, Phase I Study to Assess Safety and Tolerability of Repeat Oral Administrations of MRx0029 OR MRx0005 in Adult Participants With Idiopathic Parkinson's Disease

This is a first-in-human study to evaluate the safety and tolerability of repeat oral administrations of MRx0029 (20 participants) or MRx0005 (20 participants) in participants diagnosed with idiopathic PD. Participants who are successfully screened will be randomized to 1 of 2 treatment sequences (TS) within their cohort (10 participants per sequence). Each treatment period will be separated by a washout period of 4 to 6 weeks.

Cohort A Treatment Sequence 1: MRx0029 (1 capsule bid) for 4 weeks; 4-to 6-week washout period; placebo (1 capsule bid) for 4 weeks.

Read more

Cohort A Treatment Sequence 2: Placebo (1 capsule bid) for 4 weeks; 4-to 6-week washout period; MRx0029 (1 capsule bid) for 4 weeks.

Cohort B Treatment Sequence 1 MRx0005 (1 capsule bid) for 4 weeks; 4- to 6-week washout period; placebo (1 capsule bid) for 4 weeks.

Cohort B Treatment Sequence 2: Placebo (1 capsule bid) for 4 weeks; 4-to 6-week washout period; MRx0005 (1 capsule bid) for 4 weeks

Cohort A will be randomized first and when all participants have been randomized to Cohort A, Cohort B enrollment will begin.

Read the detailed description

There will be a total of 10 visits which will include a screening visit, 8 treatment period visits, and a Follow-up Visit. Three telephone calls will be made during the study to assess the participant's health status and confirm eDiary compliance. Participants will be screened for eligibility between Day -28 to Day -2 (Visit 1, screening). Informed consent will be obtained before performing any study-related procedures.

Following randomization, participants will be provided with enough study medication to administer at home for 4 weeks (+/-2 days). The participants will discontinue treatment for 4 to 6 weeks. The participants will return to the site for the second period of study treatment and will again be provided with enough study medication to administer at home for 4 weeks (+/-2 days).

Frequency of the AEs monitored throughout the study, and changes in laboratory values, vital signs, ECGs, and physical examinations will be assessed at the beginning and at the end of each treatment period.

Gut permeability will be assessed with administration of a sugar solution and subsequent 24 hour urine collection.

During the study, participants will report their daily bowel habits, including stool consistency, with the use of an electronic diary (the Bristol Stool Chart diary). The participants will also provide a stool sample on Day 1 and Day 29 of each treatment period and at the Follow-up Visit.

PD symptoms will be assessed with the use of MDS-UPDRS and MDS-NMS to confirm that MRx0005 and MRx0029 do not adversely impact a participant's Parkinson's symptoms.

Participants will report their dietary habits by filling out a Food Frequency Questionnaire at the clinic visits beginning (Day 1) and at the end of each treatment period, and at the Follow-up Visit.

For the participants who are on stable immediate release formulations of levodopa, PK of levodopa will be assessed at the beginning (Day 1, prior to the first IMP dosing) and at the end (Day 29) of each treatment period.

Fecal microbiome, as well as plasma/serum, fecal and urine biomarkers will be assessed, on Day 1 prior to the start of each treatment (baseline) period and at the end of each treatment period (Day 29), and at the Follow-up Visit.

Participants will undergo a 4- to 6-week washout between treatment periods. Approximately 4 to 6 weeks after their second EOT visit, the participants will attend the clinic for their Follow-up Visit.

Being tested
MRx0029, MRx0005
Keywords
Microbiome
Medical subject headings
Parkinson Disease

What participants receive

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

  • MRx0029Biological

    Megasphaera massiliensis MRx0029 (Treatment A) and Placebo

  • MRx0005Biological

    Parabacteroides distasonis MRx0005 (Treatment B) and Placebo

Study groups in NCT05832775
Study groupRoleWhat they receive
MRx0029 Treatment Sequence 1ExperimentalPatients will receive MRx0029 in the first treatment period and then placebo in the second treatment period
Receives: Biological: MRx0029
MRx0029 Treatment Sequence 2ExperimentalPatients will receive placebo in the first treatment period and then MRx0029 in the second treatment period
Receives: Biological: MRx0029
MRx0005 Treatment Sequence 1ExperimentalPatients will receive MRx0005 in the first treatment period and then placebo in the second treatment period
Receives: Biological: MRx0005
MRx0005 Treatment Sequence 2ExperimentalPatients will receive placebo in the first treatment period and then MRx0005 in the second treatment period
Receives: Biological: MRx0005

What is being measured

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

  1. Incidence of treatment-emergent adverse events (TEAEs)

    Number of TEAEs after 4-weeks of treatment with MRx0029 vs 4-weeks of placebo in participants with idiopathic PD

    Measured: Baseline to Follow-up Visit (up to 24 weeks)

  2. Incidence of treatment-emergent adverse events (TEAEs)

    Number of TEAEs after 4 weeks of treatment with MRx0005 vs 4-weeks of placebo in participants with idiopathic PD

    Measured: Baseline to Follow-up Visit (up to 24 weeks)

  3. Incidence of Serious Adverse Events (SAEs)

    Number of SAEs after 4 weeks of treatment with MRx0029 vs 4-weeks of placebo in participants with idiopathic PD

    Measured: Baseline to Follow-up Visit (up to 24 weeks)

  4. Incidence of Serious Adverse Events (SAEs)

    Number of SAEs after 4 weeks of treatment with MRx0005 vs 4-weeks of placebo in participants with idiopathic PD

    Measured: Baseline to Follow-up Visit (up to 24 weeks)

Timeline

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

  1. First posted27 Apr 2023
  2. Study startMay 2022 (estimated)
  3. Primary completionApr 2023 (estimated)
  4. Study completionApr 2023 (estimated)

Why it stopped: Sponsor insolvency

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
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05832775
Sponsor's protocol ID
INNOVATE-LBP 1.0
Status last verified
Apr 2023
First submitted
8 Mar 2022
Last updated
27 Apr 2023
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 study testing MRx0029 and MRx0005 in people with Idiopathic Parkinson Disease, run by 4D pharma plc.

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 10 inclusion and 35 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 27 Apr 2023. 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 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.

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 (TEAEs) (time frame: Baseline to Follow-up Visit (up to 24 weeks)). The study lists 4 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 27 Apr 2023; AzTrials last refreshed its copy on 7 Nov 2026.

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