Psychosocial impact of cutaneous toxicities associated with epidermal growth factor receptor-inhibitor treatment

Pre-emptive oral clarithromycin reduces the skin toxicity of panitumumab treatment for metastatic colorectal cancer

PURPOSE

Chemotherapy with panitumumab is expected to be well tolerated and improve survival in patients with metastatic colorectal cancer (mCRC). However, skin toxicities are its most common adverse events. The aim of this trial was to evaluate the efficacy and safety of pre-emptive antibiotic treatment with clarithromycin (CAM) to prevent panitumumab skin toxicities.

METHODS

We conducted a phase lll, multicenter, open-label, randomized clinical trial on mCRC patients treated with panitumumab. Eligible patients were randomly assigned 1:1 to pre-emptive antibiotic and control groups. In the pre-emptive group, CAM administration (200 mg twice per day) continued daily through the panitumumab treatment period. The control regimen consisted of skin care only. The primary end point was the incidence of grade ≥ 2 skin toxicities during the 6-week skin treatment period.

RESULTS

Of 156 enrolled patients, 78 received pre-emptive antibiotic treatment, and 78 received reactive treatment. The number and incidence of grade ≥ 2 skin toxicities during the 6-week skin treatment period were 16 (21.3%) and 41 (54.7%) for the pre-emptive and control groups, respectively (HR, 0.32; 95% CI, 0.17-0.56). There was almost no difference in the rate of other adverse events between the two groups, but the incidence of grade ≥ 3 diarrhea in the pre-emptive group was high, at 8% vs. 1.3% in the control group. There were no treatment-related deaths.

CONCLUSION

Prophylactic oral CAM together with relatively simple skin care was found to be effective in suppressing the development of grade ≥ 2 skin toxicities induced by panitumumab.

CLINICAL TRIAL REGISTRATION

UMIN000011485 DATE OF REGISTRATION: Sep 1st, 2013.

Nursing Management of Cutaneous Toxicities From Epidermal Growth Factor Receptor Inhibitors

BACKGROUND

Personalized targeted therapies have become an emerging paradigm in cancer treatment. Although generally more tolerable than other chemotherapeutic agents, one therapy, epidermal growth factor receptor inhibitors (EGFRIs), commonly results in the formation of cutaneous toxicities, which can negatively affect patients' treatment adherence and quality of life.

OBJECTIVES

The aim of this article is to review nursing management strategies for EGFRI-related cutaneous toxicities.

METHODS

A systematic literature review was performed, including database searches in PubMed/MEDLINE®, CINAHL®, Cochrane Library, PsycINFO®, and Web of Science.

FINDINGS

Nurses are essential to the management of EGFRI-related cutaneous toxicities and are in an ideal position to provide supportive care throughout the course of the EGFRI treatment. The aim of nursing management is to maintain patients' treatment adherence and quality of life by employing a preemptive and proactive approach. Patient education is the most frequently reported management strategy. However, treatment options and management strategies are largely anecdotal and based on individual reports and expert opinions. Although no evidence-based management strategies exist, nurses can rely on existing assessment tools and guidelines to provide patients with symptom management and supportive care.

Xerosis and pruritus as major EGFRI-associated adverse events

Purpose

The objective of this sub-analysis of the BeCet study (NCT01136005) was to examine health-related quality of life (HRQoL) of patients experiencing dermatological adverse events (AEs) during the first 6 weeks of epidermal growth factor receptor inhibitor (EGFRI) treatment.

Methods

Patients (n = 85) treated with EGFRI completed five questionnaires during the first 6 weeks of treatment. 77 patients provided enough data for the sub-analysis. Experienced AEs were reported in the Dermatological Reactions Targeted Therapy–Patients (DERETT-P), a symptom experience diary for patients treated with targeted therapy. The impact of EGFRI-associated dermatological adverse events on HRQoL was examined using four HRQoL questionnaires; the Functional Assessment of Cancer Therapy–EGFRI (FACT-EGFRI-18), the Functional Assessment of Cancer Therapy–General (FACT-G), the 36-Item Short Form Health Survey (SF-36), and the Skindex-16.

Results

During the first 6 weeks of EGFRI treatment, physical discomfort was the most significantly affected domain. In the entire study population, xerosis (dry skin) (22.3 %) and pruritus (itchy skin) (16.9 %) were reported as the most impactful AEs. For patients experiencing a papulopustular eruption (acneiform rash) pruritus (24.2 %), xerosis (18.9 %), and papulopustular eruption (6.3 %) were reported as the most impactful AEs. Papulopustular eruption, xerosis, and pruritus all showed a significant negative effect on HRQoL, displayed in FACT-EGFRI-18 scores.

Conclusions

In addition to papulopustular eruption, xerosis and pruritus are major EGFRI-associated dermatological AEs with an impact on HRQoL, which warrant more attention in clinical practice and research.

Non-rash dermatologic adverse events related to targeted therapies

OBJECTIVES

To provide background information and management strategies for non-rash dermatological adverse events.

DATA SOURCES

Peer-reviewed journal articles, professional manuals, online sources.

CONCLUSION

During the last decade, many dermatological adverse events of targeted therapy have been reported, including xerosis, skin fissures, pruritus, photosensitivity, pigmentation changes, hair and nail changes, hand-foot skin reaction, squamoproliferative lesions, Stevens-Johnsons syndrome, and toxic epidermal necrolysis. Although evidenced-based treatment options are scarce, many recommendations have been described in the literature that should be considered to apply in daily practice.

IMPLICATIONS FOR NURSING PRACTICE

Nursing practice will be enhanced by education, assessment, and management recommendations.

Overview and management of dermatologic events associated with targeted therapies for medullary thyroid cancer

BACKGROUND

Treatment options for patients with advanced or metastatic medullary thyroid cancer (MTC) have, in recent years, expanded with the approval of two tyrosine kinase inhibitors (TKIs): vandetanib and cabozantinib. Other agents, including TKIs, are under clinical investigation for MTC. Although patients treated with TKIs are at risk of developing dermatologic adverse events (AE), these untoward events may be mitigated through AE-driven algorithms.

SUMMARY

AE-driven algorithms combine effective nonpharmaceutical and pharmaceutical treatment modalities implemented by a multidisciplinary effort that incorporates nursing interventions, patient education, and referrals to pain-management specialists, podiatrists, and dermatologists, as appropriate. Effective AE prevention and management reduce the need for dose interruptions and modifications, allowing patients the opportunity to derive the maximal benefit from TKI therapy, while maintaining quality of life.

CONCLUSIONS

Optimal use of targeted therapies in the treatment of MTC depends on careful patient selection, interdisciplinary communication, and patient education and encouragement to enhance compliance and safety, optimize consistent dosing, and maximize the use of effective therapies.