Study of STX-100 in Renal Transplant Patients With Interstitial Fibrosis and Tubular Atrophy (IF/TA)

May 20, 2011 updated by: Stromedix, Inc.

Randomized Double-Blind, Placebo-Controlled, Single and Multiple Dose, Dose-Escalation Study of STX 100 in Renal Transplant Patients With Biopsy Proven Interstitial Fibrosis and Tubular Atrophy (IF/TA)

This Phase 2 study is a multi-center, randomized, double-blind, placebo-controlled, single followed by multiple dose, dose escalation study designed to evaluate the safety, tolerability, pharmacokinetics, immunogenicity, and impact of STX-100 on gene and protein expression for αvβ6 related and TGF-β-inducible genes (including tubulointerstitial injury, epithelial function, and IF/TA related genes) in renal transplant patients with biopsy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Withdrawn

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
48

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Massachusetts
      • Cambridge, Massachusetts, United States, 02141
        • Stromedix Investigative Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Consenting adult patients, 18 (or the legal age of consent) to 65 years old, male or female.
  • eGFR ≥ 25 ml/min (Cockcroft-Gault formula).
  • Six to 60 months post renal transplant at the initiation of screening.
  • Qualifying renal biopsy obtained within 8 weeks prior to randomization with histologic evidence of ≥ Grade 2 IF/TA (Banff score) without morphologic evidence of a treatable etiology (e.g., BK virus nephropathy, chronic obstruction).
  • Adequate bone marrow and liver function
  • Weight between 40-110 kg.
  • Female patients must be surgically sterile, postmenopausal (minimum 1 year without menses and verified by follicular-stimulating hormone [FSH] levels), or agree to use contraception from the time of signing the informed consent form through 16 weeks following the last injection of study medication. Male patients must also agree to use birth control for either themselves or their partner, as appropriate, from the time of signing the informed consent form through 16 weeks following the last injection of study medication.

Exclusion Criteria:

  • Recipient of a multi-organ transplant.
  • History of T-cell mediated rejection (TCMR) within 3 months prior to randomization.
  • Patients who are receiving high dose corticosteroids at the time of screening.
  • Histologic evidence of acute TCMR (≥ Banff Grade 1A) on a qualifying renal biopsy for this study. Patients with 'borderline' changes (Banff criteria) on a qualifying renal biopsy are eligible for this study if the Principal Investigator believes treatment for TCMR is not warranted.
  • Prior or current histologic evidence of polyomavirus BK virus nephropathy.
  • Any histologic finding on the qualifying renal biopsy that the Investigator believes warrants modifying the patient's current therapy.
  • Evidence of active tissue invasive cytomegalovirus or Epstein-Barr virus infection.
  • History of malignancy, including carcinoma or post-transplant lymphoproliferative disorder.
  • History of chronic pulmonary disease or smoker within the past 5 years or more than 15 pack-years exposure.
  • Serious local infection or systemic infection within 3 months prior to screening.
  • Surgery within 3 months prior to Day 1 (other than minor cosmetic surgery, minor dental procedures, or percutaneous kidney transplant biopsy).
  • Positive test for HBsAg, HCV, or HIV antibody at screening.
  • Treatment with another investigational drug, investigational device, or approved therapy for investigational use within 1 month prior to dosing.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: STX-100 (0.03mg/kg)
8 patients (6 active and 2 placebo)
Biological: STX-100
SC, single dose followed by multiple dose
Experimental: STX-100 (0.1mg/kg)
8 patients (6 active and 2 placebo)
Biological: STX-100
SC, single dose followed by multiple dose
Experimental: STX-100 (0.3mg/kg)
16 patients (12 active and 4 placebo)
Biological: STX-100
SC, single dose followed by multiple dose
Experimental: STX-100 (1mg/kg)
16 patients (12 active and 4 placebo)
Biological: STX-100
SC, single dose followed by multiple dose

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Safety as measured by adverse events
Time Frame: 25 weeks from first dosing (per cohort)
25 weeks from first dosing (per cohort)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Stromedix, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Bradley Maroni, MD, Stromedix, Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2010

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2011

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 6, 2009

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 8, 2009

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 9, 2009

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 23, 2011

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 20, 2011

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • STX-002

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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