High-dose Cyclophosphamide for Severe Refractory Crohn Disease

Johns Hopkins University

Status and phase

Withdrawn

Phase 2

Phase 1

Conditions

Crohn's Disease

Crohn Disease

Treatments

Drug: High-dose Cyclophosphamide

Study type

Interventional

Funder types

Other

Identifiers

NCT01836289

NA_00052668

Details and patient eligibility

About

This research is being done to see if people with Crohn's disease who receive high-dose cyclophosphamide have an improvement of their disease, how long the benefit may last, and how safe cyclophosphamide is. This study is for patient with medically refractory disease that is not easily amenable to surgery.

Cyclophosphamide is an FDA-approved chemotherapy medication that is also frequently used to treat autoimmune illness; use of cyclophosphamide for autoimmune disease is not approved by the FDA. An autoimmune illness is when the immune system mistakenly attacks self, targeting the cells, tissues, and organs of a person's own body. There are many different autoimmune diseases and they can each affect the body is different ways. Crohn's disease is an autoimmune disease that primarily affects the small and large intestines. High dose-cyclophosphamide has been successfully used to treat Crohn's, primarily as part of a conditioning regimen for autologous stem cell transplantation. However, this therapy is limited in Crohn's because of it's serious infectious risks. This current study involves using high-dose cyclophosphamide without need for stem cell transplantation. This appears to be a safer approach in other autoimmune illnesses that have been studied.

Sex

All

Ages

18 to 100 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

≥ 18 years of age, males and females will be eligible
Moderate to severe Crohn's Disease (CD) with CDAI > 220, in addition to evidence of ulceration on ileocolonoscopy or active disease on small bowel imaging (in patients with an ostomy, CDAI criteria do not apply)
Disease progression (primary or secondary non-responder, or reaction to) to at least one anti-tumor necrosis factor (TNF) agent (infliximab, adalimumab, certolizumab pegol), and additionally had disease progression despite one of the following immunosuppressant drugs: azathioprine, 6-mercaptopurine, methotrexate, cyclosporine, natalizumab, vedolizumab
Willingness to participate in a clinical trial
Approval by Enrollment Panel, who will collectively decide on the appropriateness of possible study study participants

Exclusion criteria

Pregnant or nursing women
Sexually active men and women who do not agree to use effective means of birth control during treatment period
Evidence of primarily fibrostenosing disease without active inflammatory disease on disease staging
Co-morbid conditions including cardiac disease with an ejection fraction of < 45%, chronic renal failure with serum creatinine > 2.0, liver disease with total bilirubin > 2.0, (excluding hyperbilirubinemia secondary to Gilbert's disease) or transaminitis > 3x upper limit of normal.
History of serious allergic reaction to cyclophosphamide
History of malignancy in the last 5 years (excluding non-melanomatous skin cancers)
Patients who are pre-terminal
Toxic megacolon
Active infection
White blood cell count < 3000 cells/ul, platelets < 100K / ul, hemoglobin < 10.0 g/dL
Any use of thiopurines, methotrexate or anti-TNF agents in the previous four weeks prior to treatment