Información sobre riesgo, prevención, detección, síntomas, diagnosis, tratamiento y apoyo para el cáncer.
Información sobre el tratamiento del cáncer incluyendo quirúrgica, quimioterapia, radioterapia, estudios clínicos, terapia con protón, medicina complementaria avanzadas.
OncoLink se complace en ofrecer una amplia lista de lista completa de los agentes quimioterapéuticos más comúnmente usados??. Esta guía de referencia incluye información sobre la forma en que cada fármaco se administra, cómo funcionan, y los pacientes los efectos secundarios comunes pueden experimentar.
Maneras que los pacientes de cáncer y las personas que le cuidan puedan enfrentar el cáncer, los efectos secundarios, nutrición, cuestiones en general sobre el apoyo para el cáncer, duelo/decisiones sobre el termino de vida, y experiencias compartidas por sobrevivientes.
S. Jack Wei, MD
The Abramson Cancer Center of the University of Pennsylvania
Ultima Vez Modificado: 2 de julio del 2004
There have been a number of clinical studies that have tested cancer vaccines. Thus far, no trials have found that cancer vaccines improve overall survival. However, a number of important findings have come out of these studies:
A number of Phase I and II trials have shown that cancer vaccines are generally well-tolerated, particularly with the viral and peptide vaccines. Phase I trials have reported very few significant toxicities with these vaccines. The most common toxicity in all of these trials has been local irritation at the site of the injection. In fact, it appears that patients that have a stronger local reaction to the injection may have a better response of the tumor to the treatment. This may be because a local reaction serves as a marker for people who have a good immune response to the vaccine. Patients with strong local reactions will likely have a strong reaction to the tumor as well.
In both Phase I and Phase II trials, levels of immune activity have been measured in patients receiving cancer vaccines. Routinely, objective measures have shown an increase in the immune activity in a number of patients receiving cancer vaccines. In addition, patients who have a good immune response by objective measures have a better response of their tumors to the vaccine.
Recently, the results of a non-randomized trial utilizing a melanoma vaccine were reported. 10 Patients receiving the vaccine had a 5-year overall survival of 44%. Given the advanced disease in these patients, these results were quite good, and noticeably higher than historical surgical series of patients with similarly advanced disease showing 5-year overall survival rates of 20-25%. Another promising trial was recently reported which used a prostate cancer vaccine in patients with progressive disease (judged by rising PSA levels) after local therapy for prostate cancer. 11 After a year and a half, 45% of patients did not have further increases in their PSA.
Despite the promising results in earlier trials, several large randomized trials have failed to show an overall survival advantage with the use of vaccines. 12 A large trial by the Southwest Oncology Group for patients with melanoma who did not have spread of their disease to the lymph nodes showed no improvement in overall survival for patients who received the vaccine following surgery compared to patients who underwent surgery alone. 13 Another trial for patients with renal cell carcinoma showed a small decrease in the percentage of patients who had progression of their cancer with the addition of a cancer vaccine. 14 Again, however, there was no improvement in overall survival with the use of the vaccine.
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