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Not yet recruitingNCT04170426Updated Apr 18, 2023

Autologous Adipose-derived Stem Cells (AdMSCs) for Rheumatoid Arthritis

A Phase 1/2 interventional study of autologous adipose derived stem cells in Rheumatoid Arthritis, sponsored by Celltex Therapeutics Corporation. Not yet recruiting. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2023-04-18.

Sponsored by Celltex Therapeutics Corporation · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 10 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 1/2
Study type
Interventional
Enrollment
54
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
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Study summary

This is an investigational new drug clinical trial for combined Phase 1 dose escalation study and Phase 2a randomized, placebo controlled and double blinded study using intravenous injection of autologous adipose stem cells (Celltex AdMSCs) for rheumatoid arthritis patients. All subjects are monitored for safety (adverse events/severe adverse events) and evaluated for RAPID3, DAS28 and ACR20 regarding AdMSCs up to 52 weeks study duration.

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Conditions studied

  • Rheumatoid Arthritis
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In context

Arthritis

3,554 studies on the registry are indexed under Arthritis; 317 are open to participants now.

This study's planned enrollment of 54 is below the median of 90 across 2,377 interventional studies indexed under Arthritis.

Browse Arthritis studies →

Lead sponsor

Celltex Therapeutics Corporation is the lead sponsor of 5 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Must pass communicable disease screen tests for HIV, syphilis, Hepatitis B and C Consistent with American Rheumatism Association-European League Against Rheumatism (ACR/EULAR) 2010 rheumatoid arthritis classification criteria
  • Active Rheumatoid Arthritis, see RA functional status of class I-IV
  • Patients must meet at least one of the following: > 6 swollen joints and ≥ 6 involved joints (tenderness, swelling, deformity, pain on motion, or decreased motion) and morning stiffness ≥ 45 minutes based on 68 joint count.
  • Patients must also meet at least one of the following: rheumatoid factor (RF) > 15 IU/mL or > 1:16, C-reactive protein (CRP) > 2.0 mg/dL, Erythrocyte Sedimentation Rate (ESR) > 30 mm/hour, and anti-cyclic citrullinated protein (Anti-CCP) > 20 U/mL, TNFα > 2.8 pg/mL.
  • Patients must have failed anti-rheumatoid drug due to adverse event or inefficacy for at least 12 week and at least 4 weeks on stable dose of methotrexate ≤ 25 mg/week, or leflunomide ≤ 20 mg/day, or sulfasalazine ≤ 3 g/day, or steroids (Prednisone \<10 mg/day).
  • For other medications, patients must be on the stable dose for at least 4 weeks prior to study entry in order to preclude changes to patient medication while participating on the study to ensure that a medication change could become a confounding factor in data interpretation.
  • All patients must be clinically stable with no significant changes in health status a minimum of at least 4 weeks prior to randomization and confirming patient eligibility

Exclusion criteria

Exclusion Criteria:

  1. Current or prior to treatment

    • Participation in another clinical study (with use of another Investigational Medical Product) within 3 months prior to study treatment start
    • Evidence of immune suppression related to prior/current therapy
    • > 10% change in delivered monthly dose of anti-rheumatoid medications within 4 weeks prior to this stem cell infusion
    • Use of a new or additional anti-rheumatoid medication within 6 weeks prior to this stem cell infusion
    • Use of other stem cell therapy within 12 weeks prior to this stem cell therapy
    • Unwillingness or inability to comply with study procedures
  2. Concurrent Conditions

    • Clinically active malignant disease
    • Severe bladder or thrombotic disorder
    • History of known pulmonary embolism or known secondary anti-phospholipid syndrome
    • Known or suspected hypersensitivity to any components used to culture or store the AdMSCs, e.g. sulfur or sulfonamide
    • Known or suspected antibodies to any components used to culture the AdMSCs, e.g. BSA and sulfur containing products (e.g., DMSO)
    • Active infection at time of planned study treatment start
    • Age related pathology likely to inhibit study participation or completion
    • Major trauma or surgery within 14 days of study treatment start
    • Mental condition rendering the subject (or the subject's legally acceptable representative[s]) unable to understand the nature, scope and possible consequences of the study
    • Alcohol, drug, or medication abuse within one year before study treatment start
    • Any condition that, in the Investigator's opinion, is likely to interfere with evaluation of the AdMSC therapy or satisfactory conduct of the study
    • Irreversible severe end organ failure, such as heart failure/attack, stroke, liver and renal failure
    • Heavy smokers, bed-bound patients, patients or family history with hypercoagulable status, such as protein C/protein S deficiency, factor V Leiden, prothrombin gene mutation, dysfibrinogenemia, etc.
  3. Laboratory Parameters

    • Hepatic impairment, defined as any of ALT, AST, LDH or bilirubin > 2 x the upper limit of normal (ULN) range according to local laboratory standards
    • Renal impairment, defined as serum creatinine > 133 mmol/L (1.5 mg/dL)
    • Positive virology/serology for human immunodeficiency virus (HIV), hepatitis B (HBsAg positive), hepatitis C and/or syphilis
  4. Pregnancy / contraception

    • Pregnant, breastfeeding, or desire to become pregnant or unwilling to practice birth control during participation in the study duration, unless surgically sterilized or postmenopausal during the study
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
54 participants (estimated)

Study arms

  • Experimental
    Phase 1 ARM 0

    9 subjects receive dose escalation of autologous AdMSCs via Intravenous infusion in Phase 1

    Biological: autologous adipose derived stem cells

  • Active comparator
    Phase 2 ARM 1

    30 subjects receive three doses of 2.0-2.86×10\^6 cells/kg on day 1, 4 and 7 via Intravenous infusion in Phase 2a

    Biological: autologous adipose derived stem cells

  • Placebo comparator
    Phase 2 ARM 2

    15 subjects receive three doses of placebo on day 1, 4 and 7 via Intravenous infusion in Phase 2a

    Biological: autologous adipose derived stem cells

Interventions

  • Biologicalautologous adipose derived stem cells

    Culture expanded mesenchymal stem cells isolated from patient's own abdominal fat tissue

    Also known as: Celltex-AdMSCs

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What researchers measure

Primary outcomes

  1. Adverse Events and Sever Adverse Events

    The total number of adverse events and severe adverse events related and non-related with AdMSCs will be recorded to indicate the safety and tolerability.

    Time frame: 52 weeks

Secondary outcomes

  1. Efficacy of Celltex AdMSCs

    Proportion of ACR 20 patients (swollen joints, tender joints, patient assessment of pain, RAPID3, DAS28-CRP and blood inflammatory panel tests) in comparison between baseline and post-treatment follow-up data.

    Time frame: 52 weeks

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04170426
Lead sponsor
Celltex Therapeutics Corporation
Responsible party
Sponsor
First posted
Nov 20, 2019
Start date
Dec 2023 (estimated)
Primary completion
Dec 2024 (estimated)
Completion
Dec 2026 (estimated)
Last update
Apr 18, 2023

Study contacts

Jane Young
Contact
jyoung@celltexbank.com
7135901000
Derek W Guillory, MD
principal investigator · Root Causes Medicine

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2023. You cannot join it, but the record below documents what was studied.

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