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Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT02175589
Other study ID # 0080-14-RMB
Secondary ID
Status Enrolling by invitation
Phase Phase 2
First received June 24, 2014
Last updated June 25, 2014
Start date June 2014
Est. completion date January 2015

Study information

Verified date June 2014
Source Rambam Health Care Campus
Contact n/a
Is FDA regulated No
Health authority Israel: Ministry of Health
Study type Interventional

Clinical Trial Summary

The purpose of this study is to evaluate the effect of discontinuation of colchicine treatment in a specific group of asymptomatic FMF patients with a single mutation in MEFV gene, both from a clinical and laboratory aspects.


Description:

The diagnosis of FMF is mainly clinical and genetic tests are only used to confirm the diagnosis . Even though the disease is autosomal recessive, not all FMF patients have two recognizable MEFV mutations. The phenotype of FMF patients varies according to the genotype, as shown by a number of studies showing that patients with one MEFV mutation have milder disease or even no symptoms. Some of the previously mentioned studies have shown that ceasing colchicine prophylaxis in these patients caused no recurrence. So far, no prospective controlled study has tested the effect of colchicine cessation in this group of FMF patients. The investigators presume that asymptomatic FMF patients with a single mutation can stop regular colchicine treatment while remaining under close follow-up.

The purpose of the work:

To examine the effect of colchicine cessation in a defined group of asymptomatic FMF patients with a single mutation in MEFV gene.

Methods and study population:

The work will be a controlled prospective comparative study including FMF patients aged 2-18 years. Patients included will be those who were asymptomatic for six months prior to entering the study and were regularly treated with colchicine, and with a normal serum level of Serum Amyloid A (SAA). The study group will include patients with a single MEFV mutation that will stop colchicine therapy, and the control group will include FMF who will continue regular colchicine treatment. Follow-up in both groups will include clinical and laboratory (serum SAA levels) evaluation.

The study end points and renewal of the colchicine:

Any patient that develops acute symptoms of FMF will be immediately invited to the rheumatology clinic for medical examination. In addition, patients will be invited to the clinic after 3 and 6 months from the beginning of the study. At any clinic visit (scheduled or not) the patients will be assessed clinically and laboratory (serum SAA levels). The study will be stopped and colchicine will be renewed if at any of the above mentioned clinic visit the patient will be diagnosed as having a classic FMF attack or the SAA level will be above 10 mg / l.

The importance of the study:

If the investigators conclude that colchicine prophylaxis can be safely discontinued in this group of FMF patients this will save them a treatment currently defined as a treatment for life.


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 80
Est. completion date January 2015
Est. primary completion date January 2015
Accepts healthy volunteers No
Gender Both
Age group 2 Years to 18 Years
Eligibility Inclusion Criteria:

- Patients diagnosed with FMF based on clinical criteria

- FMF patients diagnosed of having at least one common MEFV mutation will be assigned to the study group. FMF patients who staid on colchicine treatment will be assigned to the control group, regardless of their genotype.

- Patients who were on a continuous colchicine prophylactic treatment for six months prior to entering the study.

- FMF patients who were free of acute FMF symptoms for six months prior to entering th study

- Patients were included in the study only if they had normal serum level of SAA (up to 10 mg / l).

Exclusion Criteria:

- Patients that in the six months prior to entering the study continued to have classic FMF episodes despite being on a continuous prophylactic colchicine

- Patients that had high level of SAA (above 10 mg/l) despite being on prophylactic colchicine treatment

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Other:
Colchicine Cessation
Colchicine Cessation

Locations

Country Name City State
Israel Pediatric rheumatology clinic, Rambam Medical Center Haifa
Israel Schneider children's hospital Petach Tikva

Sponsors (2)

Lead Sponsor Collaborator
Rambam Health Care Campus Schneider Children's Hospital

Country where clinical trial is conducted

Israel, 

Outcome

Type Measure Description Time frame Safety issue
Primary Acute clinical episode of FMF Acute clinical episode of FMF diagnosed by one of the investigators at any clinic visit assigned at 3 or 6 months after the cessation of colchicine treatment or at an unassigned visit if the patient attained the clinic due to an acute symptoms of FMF 6 months Yes
Secondary High level of Serum Amyloid A (SAA) in serum High level of SAA (above 10 mg/l) at any clinic visit assigned at 3 or 6 months after the cessation of colchicine treatment or at an unassigned visit if the patient attained the clinic due to an acute symptoms of FMF 6 months Yes
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