Alternate Title
Basic Trial Information
Objectives
Entry Criteria
Expected Enrollment
Outline
Trial Contact Information
Registry Information

Alternate Title

Pirfenidone in Treating Young Patients With Neurofibromatosis Type 1 and Plexiform Neurofibromas

Basic Trial Information

Phase Type Status Age Sponsor Protocol IDs Phase I Prevention Completed 3 to 21 NCI NCI-03-C-0058A NCT00053937

Objectives

1. Determine the maximum tolerated dose or "comparable dose" of pirfenidone in pediatric patients with neurofibromatosis type 1 and inoperable, symptomatic plexiform neurofibromas.
2. Determine the toxic effects of this drug in these patients.
3. Determine the plasma pharmacokinetics of this drug in these patients.
4. Determine, preliminarily, if this drug could be beneficial for pediatric patients with refractory solid tumors.
5. Assess the quality of life of patients treated with this drug.

Entry Criteria

Disease Characteristics:

• Diagnosis of neurofibromatosis type 1 (NF1)

  AND




• Plexiform neurofibromas
  • Neurofibromas that have grown along the length of a nerve and may involve multiple fascicles and branches (spinal neurofibromas involve 2 or more levels with connection between the levels or extending laterally along the nerve)
  • Potential to cause significant morbidity such as:
    • Head and neck lesions that could compromise airway or great vessels
    • Brachial or lumbar plexus lesions that could cause nerve compression and loss of function
    • Lesions that could result in major deformity (e.g., orbital lesions) or significant cosmetic problems
    • Lesions of the extremity that cause limb hypertrophy or loss of function
    • Painful lesions



• Meets at least 1 other diagnostic criteria for NF1
  • 6 or more cafe-au-lait spots (at least 0.5 cm in prepubertal patients or at least 1.5 cm in postpubertal patients)
  • Freckling in the axilla or groin
  • Optic glioma
  • 2 or more Lisch nodules
  • Distinctive bony lesion (dysplasia of the sphenoid bone or dysplasia or thinning of long bone cortex)
  • First-degree relative with NF1



• Measurable plexiform neurofibromas
  • At least 3 cm in 1 dimension
  • Tumor resection not feasible



• No history of malignant peripheral nerve sheath tumor or other cancer



• No evidence of an active optic glioma requiring chemotherapy or radiotherapy



• No malignant glioma

Prior/Concurrent Therapy:

Biologic therapy

• At least 30 days since prior immunotherapy
• No concurrent immunotherapy
• No concurrent hematopoietic growth factors

Chemotherapy

• At least 30 days since prior chemotherapy
• No concurrent chemotherapy directed at the tumor

Endocrine therapy

• At least 30 days since prior hormonal therapy directed at the tumor
• No concurrent hormonal therapy directed at the tumor

Radiotherapy

• At least 90 days since prior radiotherapy to the site of the plexiform neurofibroma
• No concurrent radiotherapy directed at the tumor

Surgery

• Not specified

Other

• Recovered from prior therapy
• More than 30 days since prior investigational agents
• No prior pirfenidone
• No other concurrent investigational agents

Patient Characteristics:

Age

• 3 to 21

Performance status

• Karnofsky 50-100% (over 10 years of age)
• Lansky 50-100% (10 years and under)

Life expectancy

• Not specified

Hematopoietic

• Absolute granulocyte count at least 1,500/mm³
• Hemoglobin at least 9.0 g/dL
• Platelet count at least 150,000/mm³

Hepatic

• Bilirubin normal
• SGPT no greater than 2 times upper limit of normal
• No clinically significant hepatic dysfunction that would preclude study participation

Renal

• Creatinine normal for age

  OR

• Creatinine clearance at least 70 mL/min

Cardiovascular

• No clinically significant cardiac dysfunction that would preclude study participation

Pulmonary

• No clinically significant pulmonary dysfunction that would preclude study participation

Other

• Not pregnant or nursing
• Negative pregnancy test
• Fertile patients must use effective contraception during and for 2 months after study
• Must be able to take pirfenidone orally
• No serious infections
• No clinically significant unrelated systemic illness or organ dysfunction that would preclude study participation

Expected Enrollment

A total of 3-18 patients will be accrued for this study within 18 months.

Outline

This is an open-label, multicenter, dose-escalation study.

Patients receive oral pirfenidone three times daily on days 1-28. Courses repeat every 28 days for up to 2 years in the absence of disease progression or unacceptable toxicity.

Cohorts of 3-6 patients receive escalating doses of pirfenidone until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity.

Quality of life is assessed at baseline, before course 4, and then after every 6 courses.

Trial Contact Information

Trial Lead Organizations

NCI - Center for Cancer Research-Medical Oncology

Brigitte Widemann, MD, Protocol chair		Ph: 301-496-7387

Registry Information
Official Title		Phase I Trial Of Pirfenidone In Children With Neurofibromatosis Type 1 And Plexiform Neurofibromas
Trial Start Date		2002-12-10
Registered in ClinicalTrials.gov		NCT00053937
Date Submitted to PDQ		2002-12-10
Information Last Verified		2004-04-30