Safety and Efficacy of Cetuximab-Based Salvage Chemotherapy After Checkpoint Inhibitors in Head and Neck Cancer

BACKGROUND

There are still few data on the activity and safety of cetuximab-based salvage chemotherapy after immunotherapy (SCAI) in patients with squamous cell cancer of the head and neck (SCCHN).

MATERIALS AND METHODS

This was a retrospective study of patients with SCCHN who received cetuximab-based SCAI after programmed cell death protein 1 or programmed cell death ligand 1(PD[L]1) inhibitors. Overall response rate (ORR) and disease control rate (DCR) with SCAI and with last chemotherapy before immunotherapy (LCBI) by RECIST 1.1, percentage change from baseline in target lesions (PCTL), progression-free survival (PFS), overall survival (OS), treatment compliance, and toxicity were evaluated.

RESULTS

Between March 2016 and November 2019, 23 patients were identified. SCAI consisted of cetuximab-based combinations (3-weekly cisplatin-5FU-cetuximab [n = 2], weekly paclitaxel-cetuximab [n = 17], weekly cisplatin-cetuximab [n = 2], weekly carboplatin-paclitaxel-cetuximab [n = 2]). ORR was 56.5% (11 partial response, 2 complete response). DCR was 78.3%. Among 13 objective responders, median best PCTL was -53.5% (range, -30% to -100%). Median OS and PFS were 12 months and 6 months, respectively. In 10 patients receiving LCBI, ORR to LCBI was 40%, whereas ORR to SCAI achieved 60%. In LCBI-treated patients, median PFS with LCBI was 8 months and median PFS and OS with SCAI were 7 months and 12 months, respectively. Reduced dose intensity of the chemotherapy and cetuximab components occurred in 82.6% and 52.2% of the patients. Grade 1 or 2 adverse events (AEs) occurred in all patients. Grade 3 or 4 AEs developed in 65%, being grade 3 in all of them except in one patient (grade 4 neutropenia). There were no treatment-related deaths.

CONCLUSION

Cetuximab-based salvage chemotherapy after PD(L)1 inhibitors associated with high response rates and deep tumor reductions with a manageable safety profile. Subsequent lines of therapy may explain the long survival achieved in our series. These results invite to design studies to elucidate the best therapeutic sequence in patients with SCCHN in the immunotherapy era.

IMPLICATIONS FOR PRACTICE

Cetuximab-based salvage chemotherapy (SCAI) achieved high response rates in patients with recurrent/metastatic squamous cell cancer of the head and neck (SCCHN) after progression to PD-1/PD-L1 inhibitors. Objective response rate was higher than and progression-free survival was comparable to that of chemotherapy administered before immunotherapy (IO). In most patients, SCAI consisted of weekly, well-tolerated regimens. These observations have implications for current practice because of the limited evidence to date in SCCHN and the scant therapeutic options in this disease and invite to elucidate which may be the best treatment sequence for patients with head and neck cancer in the IO era.

Main information requests of family members of patients in Intensive Care Units

OBJECTIVE

To compile an inventory of information requests prioritized by the family members, to find out which professionals them consider able to respond these requests, and to explore the differences in perception between family members and professionals.

DESIGN

Qualitative analysis of content validation and descriptive cross-sectional study.

SCOPE

41 Spanish ICU.

PARTICIPANTS

Relatives, physicians and nurses of critical patients.

INTERVENTION

From an initial list of questions extracted from literature review, physicians, nurses, and relatives of critical patients incorporated issues that they considered not included. After analyzing content validity, a new list was obtained, which was again submitted to the participants' assessment to evaluate the level of importance that they assigned to each question and which professional they considered appropriate to answer it.

RESULTS

most important questions for the relatives: concern about the clinical situation, measures to be taken, prognosis and information. There was a coincidence between relatives and professionals in the priority issues for families. There were significant differences in the importance given to each question: between doctors and relatives (72/82 questions), and between nurses and relatives (66/82 questions) (P<.05). For the relatives, 63% of the questions could be answered by doctors or nurses, 27% preferably by doctors and 10% by nurses.

CONCLUSIONS

The most relevant issues for families were prognosis and severity, but also the need for information. Healthcare professionals tend to underestimate the importance of many of the questions that concern families. Relatives feel that most of their concerns can be resolved either by doctors or nurses.

[Expectations of relatives of critically ill patients regarding medical information. Qualitative research study]

OBJECTIVE

To determine and analyse the expectations, needs and experiences of relatives of critically ill patients as regards medical information and the level of their understanding. To find keys for improving communication and to draw up best practices in clinical information.

MATERIAL AND METHODS

Qualitative research study through semi-structured interviews carried out in a polyvalent adult intensive care unit (ICU) in a University Hospital.

PARTICIPANTS

relatives of patients who were admitted to the ICU and who were discharged alive from the Unit. Ten interviews were performed taking into account diversification variables such as, type of family relationship with patients, patient age, length of ICU stay, origin, and location at the time of the interview.

RESULTS

The results of the analysis of 10 interviews focused on: the subjective position of the family in the ICU (the agonizing wait), what the ICU represents for the family (surveillance and monitoring of a situation between life and death), perceived care (complete delegation of care), and medical information (what and how they expect and what and how they receive it), as much in the first information (sincerity, hope, delicacy) as in the successive.

CONCLUSIONS

There is divergence between what families expect and what they get as regards medical information. To know the expectations of the families will help to provide higher quality care and more humane treatment in the ICU.