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Crohn's DiseasePhase 1/2NCT00287170

Efficacy Study of Targeted, Local Delivery of Drugs to Treat Crohn's Disease

A Phase 1/2 study testing Delayed Release 6MP or Calcitriol vs. Purinethol in people with Crohn's Disease, run by Teva GTC at 1 site in Israel.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study is being undertaken to evaluate whether delayed-release medications, designed to begin to open in the lower intestinal tract, the main site of Crohn's Disease, are more effective than standard systemically delivered drugs to promote remission or response in CD patients. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Crohn's Disease
What is being tested?
Delayed Release 6MP or Calcitriol vs. Purinethol
How many people
15 participants
Where
1 siteIsrael
Study dates
Jul 2006to Dec 2007
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 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or Female patients, aged 18-75 years with moderate Crohn's Disease (CDAI score >=220 and <=400 at screening), with or without adjunctive mesalamine treatment, 12 with involvement of the ileum and three without ileal involvement
  • Definitive diagnosis of active inflammatory CD with fibrostenosing and/or fistulizing/perforating CD types ruled out based on clinical and radiological or endoscopic or pathological findings, within the previous 6 months

Who cannot join

  • Body weight below 42.5 kg
  • Subjects who have received either methotrexate, cyclosporine or anti-TNFalpha (infliximab, Remicade), anti-integrin (namixilab) in the past 3 months
  • Subjects who are taking allopurinol, sulfasalazine, valerian, warfarin and corticosteroids,including budesonide and prednisone within 28 days prior to and throughout the study
  • Previous bowel resection, including prior colostomy, ileostomy or colectomy with ileorectal anastomosis
  • Symptomatic stenosis or ileal strictures; x-ray evidence of fibrosed bowel
  • Subjects with ulcerative colitis or short bowel syndrome
Show all 10Show fewer
  • Subjects who present with, or with a history of persistent intestinal obstruction, bowel perforation, uncontrolled GI bleed or abdominal abscess or infection, toxic megacolon
  • Subjects with fistulizing CD or isolated small bowel CD
  • Subjects with evidence of other serious infectious, autoimmune, hepatic,nephritic or systemic disease or compromised organ function
  • Subjects with a history of GI tract malignancy or IBD-associated malignant changes in the intestines

Trial locations and contacts

1 site in 1 country.

Israel1 site
  • Hadassah Medical Center

    Jerusalem, 91120

Other trials in Israel

About this study

Official title: Pilot, Open-Label, Randomized, Parallel Group Study to Evaluate Clinical/ and Immunological Efficacy/Safety of Locally Delivered 6-MP or Calcitriol vs Purinethol in Non-Steroid Dependent Patients With Active CD

The study is being undertaken to evaluate whether delayed-release medications, designed to begin to open in the lower intestinal tract, the main site of Crohn's Disease, are more effective than standard systemically delivered drugs to promote remission or response in CD patients. It is hypothesized that the delayed-release medications will go right to the injured tissue and heal the disease more quickly.

The delayed-release test drugs are 6-mercaptopurine (at a dose of 40 mg daily) or calcitriol (at a dose of 5 mcg three times a week) versus Purinethol (6-MP at a dose of 1-2 mg/kg body weight daily). Calcitriol is a synthetically manufactured replica of a natural substance in the body that is derived from Vitamin D. There is much medical evidence that shows that lack of Vitamin D can be a possible risk factor in developing autoimmune disorders, including Crohn's Disease. Moreover, calcitriol has been shown in animal models to improve the symptoms of Crohn's Disease.

Read the detailed description

This pilot clinical study is designed to evaluate the efficacy and safety of oral administration of novel, delayed-release test formulations, for targeted delivery to the ileum in Crohn's Disease patients. The local delivery drugs (delayed-release formulations of 6-mercaptopurine or calcitriol) will be compared to standard Purinethol treatment after 12 weeks of treatment to evaluate:

  • (1) local intestinal mucosal inflammation and damage as shown by markers of biopsy tissue (CDEIS and pathologist review of biopsies);
  • (2) Clinical symptoms of active Crohn's Disease [CDAI scores- remission <150; response- a drop of 100 points from baseline; IBDQ scores- >= 180 indicative of remission]; and
  • (3)Systemic improvement as shown by blood immunological and inflammatory markers (CRP and ESR).

It is hypothesized that since CD is a localized autoimmune inflammation of the intestinal mucosa, a far more effective, and potentially safer treatment would be targeted, local delivery of effective drugs directly to the disease site. The drug would be concentrated in the specific area of disease, while unwanted systemic side effects would be minimized. The drugs selected for evaluation are 6-MP (a mainstay of CD treatment for over 30 years) and calcitriol, a synthetically manufactured Vitamin D derivative, which is being evaluated in many studies for its impressive immunomodulatory effects in cancer, MS and other autoimmune disorders.

Conditions
Crohn's Disease
Being tested
Delayed Release 6MP or Calcitriol vs. Purinethol
Keywords
Crohn's Disease, Local Ileal Delivery, Delayed-Release Formulations, 6-Mercaptopurine, Calcitriol
Medical subject headings
Crohn Disease

What participants receive

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

  • Delayed Release 6MP or Calcitriol vs. PurinetholDrug

What is being measured

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

  1. Remission-defined as a CDAI (Crohn's Disease Activity Index) of <150

    Measured: 12 weeks

  2. Response- defined as a fall in the CDAI by 100 points or more from baseline

    Measured: 12 weeks

Secondary outcomes (1)
  1. Improvement in ESR (Erythrocyte Sedimentation Rate), CRP (C-Reactive Protein) levels, and IBDQ (Inflammatory Bowel Disease Questionnaire) >=180 indicative of remission

Timeline

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

  1. First posted6 Feb 2006 (estimated)
  2. Study startJul 2006
  3. Study completionDec 2007

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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00287170
Sponsor's protocol ID
C2/13/6MP:CAL-01
Status last verified
Jul 2008
First submitted
2 Feb 2006
Last updated
8 Jul 2008
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Delayed Release 6MP or Calcitriol vs. Purinethol in people with Crohn's Disease, run by Teva GTC at 1 site in Israel.

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 2 inclusion and 10 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: finished, as of the sponsor's last update on 8 Jul 2008. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Remission-defined as a CDAI (Crohn's Disease Activity Index) of <150 (time frame: 12 weeks). 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 8 Jul 2008.

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