A phase II trial of perifosine, an oral alkylphospholipid, in recurrent or metastatic head and neck cancer.

Abstract

BACKGROUND:

Novel, effective therapies are warranted in the management of recurrent or metastatic squamous cell carcinoma of the head and neck (SCCHN). Perifosine is an oral alkylphospholipid that inhibits AKT phosphorylation and has shown preclinical antitumor activity in head and neck cancer cell lines and xenografts.

PATIENTS AND METHODS:

We conducted a phase II trial of perifosine in patients with incurable, recurrent or metastatic SCCHN. Previous therapy for recurrent or metastatic disease was limited to no more than one prior chemotherapy and one prior targeted/biologic agent regimen. Patients had to have measurable disease, Eastern Cooperative Oncology Group performance status 0-2, and adequate laboratory parameters. Perifosine was given as a loading dose of 150 mg every 6 hours x 6 doses orally in the first two days, with antiemetic prophylaxis, followed by 100 mg/day orally without interruption. Administration via gastrostomy tube was allowed. Tumor response was assessed every two cycles (eight weeks). Biomarkers in pathways potentially affected by perifosine, including AKT, P-AKT, P38, p53 and p21 were measured on tumor tissue by immunohistochemistry by manual and automated methods.

RESULTS:

Nineteen patients were enrolled. No objective responses were observed. One patient had stable disease as best response and 18 patients progressed at first evaluation. The median overall survival time was 5.5 months and the median progression-free survival time was 1.7 months. The most frequent toxicities were gastrointestinal (constipation, nausea, vomiting) and fatigue. One patient developed grade 4 anorexia. Although the sample size was small, a significant correlation was detected between high expression of P38 and AKT in baseline tumor tissue and better survival.

CONCLUSIONS:

Perifosine in the doses and schedule used lacks single-agent activity in SCCHN. Our data do not justify further investigation of perifosine as a single agent in SCCHN.

• Authors: Athanassios Argiris, Ezra Cohen, Theodore Karrison, Benjamin Esparaz, Ann Mauer, Rafat Ansari, Stuart Wong, Yi Lu, Michael Pins, Janet Dancey, Everett Vokes
• Journal: Cancer biology & therapy (Cancer Biol Ther) Vol. 5 Issue 7 Pg. 766-70 (Jul 2006) ISSN: 1538-4047 [Print] United States
• PMID: 16760642 (Publication Type: Clinical Trial, Phase II, Journal Article, Multicenter Study, Research Support, N.I.H., Extramural)

Chemical References

• Antineoplastic Agents
• Biomarkers, Tumor
• Phospholipids
• Phosphorylcholine
• perifosine
• Proto-Oncogene Proteins c-akt
• p38 Mitogen-Activated Protein Kinases

Topics

• Administration, Oral
• Adult
• Aged
• Aged, 80 and over
• Antineoplastic Agents (administration & dosage, adverse effects, therapeutic use)
• Biomarkers, Tumor (analysis)
• Carcinoma, Squamous Cell (diagnosis, drug therapy, secondary)
• Female
• Head and Neck Neoplasms (diagnosis, drug therapy, pathology)
• Humans
• Male
• Middle Aged
• Neoplasm Recurrence, Local (diagnosis, drug therapy)
• Phospholipids (administration & dosage, adverse effects, therapeutic use)
• Phosphorylcholine (administration & dosage, adverse effects, analogs & derivatives, therapeutic use)
• Proto-Oncogene Proteins c-akt (analysis)
• p38 Mitogen-Activated Protein Kinases (analysis)