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Rheumatoid ArthritisPhase 2NCT05363917

Natrunix Versus Methotrexate in Rheumatoid Arthritis

A Phase 2 study of Rheumatoid Arthritis, run by XBiotech, Inc..

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Phase II Double-Blinded, Placebo-Controlled Randomized Study Examining the Safety and Efficacy of Natrunix versus MTX (+folate) for the Treatment of Rheumatoid Arthritis Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Rheumatoid Arthritis
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
150 participants
Where
No sites listed yet
Study dates
15 Jun 2022to 15 Feb 2023
Phase
Phase 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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects must be willing comply with MTX regimen (+folate) and have no prior MTX (+folate) intolerance.
  • Subject has no prior history of MTX (+folate) failure for the treatment of RA.
  • Diagnosis of RA for greater than or equal to 3 months.
  • Meets the following minimum disease activity criteria at screening and baseline: ≥6 swollen joints (based on DAS28) and ≥6 tender joints (based on DAS28) and DAS-ESR > 3.2.
  • Normal CBC, hepatic and bone marrow function according to the site's institutional guidelines.
  • Male or female, at least 18 years, willing to provide informed consent; able to attend all clinic visits and comply with study-related procedures; and able to understand and complete study-related questionnaires.

Who cannot join

  • History of treatment with Natrunix for any reason.
  • Uncontrolled intercurrent illness (e.g., ongoing infection, psychiatric illness/social situations that would limit compliance with study requirements).
  • Subject has a prior history of MTX (+folate) failure for the treatment of RA.
  • Subjects received MTX (+folate) for any reason for the previous 6 weeks prior to randomization.
  • Patients must not have received any biological therapy within 8 weeks prior to randomization.
  • No treatment with protein tyrosine kinase (PTK) inhibitors within 4 weeks of randomization.
Show all 11Show fewer
  • Investigational therapy administered within a time interval less than at least 5 half-lives of the investigational agent, whichever was longer, prior to the first scheduled day of dosing in this study.
  • Pregnant or breastfeeding subjects.
  • Patients with alcoholism or other substance abuse.
  • Uncontrolled heart disease, including NYHA Class III or IV congestive heart failure, ventricular arrhythmias, uncontrolled blood pressure (defined as ≥ 160/100 mm Hg), or unstable angina.
  • Any other concomitant disease, disorder, or condition that could interfere with patient's safety, ability to participate, or interpretation of study results.

About this study

Official title: Phase II Double-Blinded, Placebo-Controlled Randomized Study Examining the Safety and Efficacy of Natrunix Versus Methotrexate (+Folate) for the Treatment of Rheumatoid Arthritis

Phase II Double-Blinded, Placebo-Controlled Randomized Study Examining the Safety and Efficacy of Natrunix versus MTX (+folate) for the Treatment of Rheumatoid Arthritis

Read the detailed description

The ACR50 response rate will be determined for Natrunix treatment in comparison with MTX (+folate). There will be a total study population of 150 subjects with 1:1 randomization (75 subjects receiving Natrunix + MTX placebo (+folate) and 75 receiving Natrunix placebo + MTX (+folate)).

Patients will undergo a preliminary assessment for study eligibility. Patients who meet the eligibility criteria will be screened and be required to provide an informed consent to acknowledge understanding and accept enrollment in the clinical study. Subjects enrolled will be randomized in a 1:1 ratio to receive either test article (Natrunix) + MTX placebo OR Natrunix placebo + MTX (+folate). Four weeks are allotted to complete all screening procedures. During the screening period, certain treatments will be washed out (discontinued), as applicable, according to eligibility requirements.

Clinical assessments and collection of blood samples for Natrunix pK determination or other analysis will be performed at specified clinic visits. Natrunix + MTX placebo (+folate) OR Natrunix placebo + MTX (+folate) will be administered weekly for 12 weeks. After 13 weeks, the study will conclude. All data must be entered into the database in a timely manner, including data from the last visit.

Patients will receive the following treatments every week: 400 mg Natrunix or Natrunix placebo injected subcutaneously once a week, followed by MTX placebo or MTX taken orally once a week respectively and a minimum of 1 mg folic acid taken orally every day or 5 mg of folinic acid taken orally once a week.

A patient should start on a reduced dose of 7.5 mg of MTX or MTX placebo at visit 1. On day 5 (5 days after the first dose), the patient laboratory findings are checked and if there are no clinically significant findings, the dose of MTX or MTX placebo may be increased up to 15 mg once weekly and maintained throughout the study. The dose of MTX may range from 7.5-15 mg once weekly based on discretion of the Principal Investigator.

Being tested
Natrunix with MTX placebo (+folate), Natrunix placebo with MTX (+folate)
Medical subject headings
Arthritis, Rheumatoid

What participants receive

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

  • Natrunix with MTX placebo (+folate)Drug

    True Human IgG4 monoclonal antibody that neutralizes Interleukin-1α

  • Natrunix placebo with MTX (+folate)Drug

    Natrunix placebo with MTX (+folate)

Study groups in NCT05363917
Study groupRoleWhat they receive
Natrunix with MTX placebo (+Folate)ExperimentalNatrunix 400mg, subcutaneous injection with oral MTX placebo (+Folate). This arm will enroll 100 subjects.
Receives: Drug: Natrunix with MTX placebo (+folate)
Natrunix Placebo with MTX(+Folate)Active comparatorNatrunix Placebo, subcutaneous injection with oral MTX(+Folate). This arm will enroll 50 subjects.
Receives: Drug: Natrunix placebo with MTX (+folate)

What is being measured

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

  1. ACR 50 response rate at 12 weeks.

    The ACR is a measure used in clinical practice and clinical trial to assess medication efficacy in patients with RA, by notating improvements in swelling and tenderness in designated joints, as well as improvements in at least 3 out of 5 other categories. The other categories assessed are patient global assessment of disease activity, physician global assessment of disease activity, patient reported pain scale, disability/functionality questionnaire response, and acute phase reactant levels (CRP and ESR).

    Measured: At 12 weeks from baseline

Secondary outcomes (2)
  1. ACR 20 response rate at 12 weeks.

    Measured: At 12 weeks from baseline

  2. Mean change in NRS-pain at 12 weeks.

    Numerical rating scale (NRS) is a validated measure used to assess chronic and acute pain using a 10 point rating scale. The rating for no pain is "0" and "worst possible pain" is 10.

    Measured: At 12 weeks from baseline

Timeline

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

  1. First posted6 May 2022
  2. Study start15 Jun 2022 (estimated)
  3. Primary completion15 Dec 2022 (estimated)
  4. Study completion15 Feb 2023 (estimated)

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Arm 1: Natrunix with MTX placebo (+folate) Arm 2: Natrunix placebo with MTX (+folate)
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
150 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05363917
Sponsor's protocol ID
2022-PT059
Status last verified
May 2022
First submitted
2 May 2022
Last updated
6 May 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study of Rheumatoid Arthritis, run by XBiotech, 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 11 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: status not confirmed, as of the sponsor's last update on 6 May 2022. 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 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?

Results are not available in the source record.

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?

ACR 50 response rate at 12 weeks. (time frame: At 12 weeks from baseline). 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 6 May 2022.

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