The purpose of this work was to develop a topical formulation of imiquimod, a novel immune response modifier, to induce local cytokine production for the treatment of external genital and perianal warts. A pH-solubility profile and titration data were used to calculate a pKa of 7.3, indicative of a weak base. Solubility experiments were conducted to identify a solvent that dissolves imiquimod to achieve a 5% formulation concentration. Studies to select surfactants, preservatives, and viscosity-enhancing excipients to formulate an oil-in-water cream indicated that fatty acids were the preferred solvent for topical imiquimod formulations, and isostearic acid (ISA) was selected. A relationship existed between the fatty acid composition of four commercially available ISA sources and the solubility of imiquimod. A combination of polysorbate 60, sorbitan monostearate, and xanthan gum was used to produce a physically stable cream. The preservative system included parabens and benzyl alcohol to meet the USP criteria for preservative activity. An in vitro method was developed to demonstrate that imiquimod was released from the formulation. Topical application of the formulation induced local cytokine activity in mice.
Patients with curable esophageal cancer or cancer in the esophageal junction face several challenges during the course of their treatment because of the burden of uncertainty in their prognoses and complexity and side effects of the treatment. The aim of this study is to explore patient experiences with illness, treatment, and decision-making in the context of esophageal cancer. A qualitative approach using phenomenological–hermeneutical methodology was used. Data consisted of participant observations and interviews. We analyzed the data based on Ricoeur’s theory of interpretation. The results show that patients with esophageal cancer are putting their ordinary lives on hold and experiencing the meal as a battleground during treatment. Patients strive to maintain autonomy, gain control, and take ownership. The results emphasize the need for a systematic approach to establish an ongoing dialogue with patients throughout the course of treatment.
Being a relative on the sideline to the patient with oesophageal cancer: a qualitative study across the treatment course Background: Being a relative of patients with oesophageal cancer or cancer in the oesophageal junction is stressful, as the healthcare system often overlooks concerns about the future as well as the roles and needs of relatives. There is a lack of research addressing relatives' experiences, roles and needs for participation in decisions. Aims and objectives: To explore relatives' experiences before the start of treatment and their subsequent roles and needs for participation in treatment decisions. Design: A qualitative approach based on a phenomenologicalhermeneutical methodology was used. Methods: Data consisted of participant observations and semi-structured interviews with 19 relatives of patients with oesophageal cancer. We analysed data with inspiration from Ricoeur's theory of interpretation. Results: The relatives were fellow sufferers, experiencing uncertainties and fear for the future with the patients, but they were simultaneously a challenged anchor during a difficult time, actively involved in handling the diagnosis and the everyday life. The relatives were positioned on the sideline both by the professionals and by themselves; they took a passive and subordinate part in decisions. Conclusion: Relatives are central to cancer care and treatment. Adequate and timely information is imperative for relatives as well for patients in order to facilitate shared decision-making. We advocate for a new approach to relatives in order to prepare the relatives for their roles and support their individual needs but also to acknowledge relatives' knowledge about everyday life from the relatives' perspective.
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