Frequency and clinical relevance of DPYD genetic variants in gastrointestinal cancer patients.

OBJECTIVE: To determine the prevalence of loss-of-function variants in the dihydropyrimidine dehydrogenase gene in patients with gastrointestinal neoplasms, assess their clinical relevance, and evaluate the  implementation of a multidisciplinary circuit at three months from its  implementation. METHOD: This is a descriptive, observational and retrospective study, which  included adult patients with gastrointestinal cancer treated at a tertiary  university hospital who underwent dihydropyrimidine dehydrogenase genotyping between September 2019 and December 2020. The  variables collected were sex, age, type of cancer, location, stage, treatment received, indication of treatment and degree of toxicity  developed during the first three cycles. The genotyped variants were  rs3918290 (c.1905+1G>A), rs55886062 (c.1679T>G), rs67376798  (c.2846A>T) and rs75017182 (c.1129-5923C>G). RESULTS: A total of 115 patients were included. The frequency of heterozygous dihydropyrimidine dehydrogenase variant carriers was 9.6% (11  patients). The most frequently identified variant was rs75017182 (6 patients). The second most common variant was rs67376798 (3 patients),  followed by rs3918290 (2 patients). No patients presented with the  rs55886062 variant. Two of the dihydropyrimidine dehydrogenase carriers  developed  grade 3-5 toxicity after the first cycle of a regimen that included  fluoropyrimidines. Both received full doses of fluoropyrimidine, since their  dihydropyrimidine dehydrogenase genotype was unknown before treatment  initiation. None of the dihydropyrimidine dehydrogenase carriers who began treatment with a reduced dose of fluoropyrimidine experienced grade 3-5  toxicity. Since the creation in October 2020 of a multidisciplinary team, with  the active participation of hospital pharmacists, the monthly average of dihydropyrimidine dehydrogenase genotyping studies has increased from 6.4  (January-October) to 17.5 (November-December). CONCLUSIONS: The present study shows a relatively high prevalence of loss-of- function variants in the dihydropyrimidine dehydrogenase gene as well as the  importance of genotyping such variants before starting a treatment with  fluoropyrimidines. Hospital pharmacists can contribute to the implementation  of pharmacogenetics in daily clinical practice in a tertiary hospital.

OBJETIVO: Determinar la prevalencia de variantes de pérdida de función en el  gen de la dihidropirimidina deshidrogenasa (DPYD) en pacientes con tumores  digestivos, valorar su relevancia clínica y evaluar la implementación de un  circuito multidisciplinar tras tres meses de funcionamiento.Método: Estudio descriptivo, observacional y retrospectivo donde se incluyeron los pacientes adultos afectos de tumores digestivos, atendidos en  un hospital universitario de tercer nivel, a los que se había  afectuado el genotipado de DPYD entre septiembre de 2019 y diciembre de  2020. Las variables recogidas fueron sexo, edad, tipo de cáncer, localización,  estadio, tratamiento recibido, indicación del tratamiento y grado de toxicidad desarrollado durante los tres primeros ciclos. Se genotiparon las  variantes rs3918290 (c.1905+1G>A), rs55886062 (c.1679T>G), rs67376798 (c.2846A>T) y rs75017182 (c.1129-5923C>G). RESULTADOS: Se incluyeron 115 pacientes. La frecuencia de portadores en  heterocigosis de variantes del gen DPYD fue del 9,6% (11 pacientes). La  variante más frecuentemente identificada fue el rs75017182 (6 pacientes). La  segunda variante más frecuente fue el rs67376798 (3 pacientes), seguida del  rs3918290 (2 pacientes). Ningún paciente presentó la variante rs55886062.  Dos de los pacientes portadores desarrollaron toxicidad  grados 3-5 tras el  primer ciclo de un esquema que incluía fluoropirimidinas. Ambos recibieron  dosis plenas de fluoropirimidina, puesto que no se conocía el genotipo de DPYD antes de iniciar el tratamiento. Ninguno de los pacientes portadores que  tmpezó el tratamiento con una dosis reducida de fluoropirimidina experimentó  toxicidad grados 3-5. Desde la creación en octubre de 2020 de un equipo  multidisciplinar, con participación activa del farmacéutico hospitalario, se ha  incrementado el número de estudios de genotipado de DPYD de una media de  6,4 estudios mensuales (enero-octubre) a 17,5 (noviembre-diciembre). CONCLUSIONES: Nuestro estudio muestra la relativamente elevada prevalencia de variantes de pérdida de función en el gen DPYD, así como la  importancia de genotiparlas antes de empezar un esquema de tratamiento que  contenga fluoropirimidinas. El farmacéutico hospitalario puede contribuir a la implementación de la farmacogenética en la  práctica clínica diaria en un hospital de tercer nivel.

Encouraging results with inolimomab (anti-IL-2 receptor) as treatment for refractory acute graft-versus-host disease.

Inolimomab [corrected] an anti-interleukin-2 receptor (anti-IL-2R) monoclonal antibody, may be useful in the treatment of steroid-refractory acute graft-versus-host disease (aGVHD) by inhibiting 1 of its putative immunopathogenic pathways. We retrospectively analyzed 40 consecutive patients who received inolimomab [corrected] as salvage treatment for steroid refractory aGVHD at a single institution between June 1999 and December 2004. Inolimomab [corrected] was given intravenously at a dose of 11 mg/d for 3 consecutive days, followed by 5.5 mg/d for 7 consecutive days and then 5.5 mg every other day for 5 doses. No infusion-related side effects were noted. Twenty-three patients (58%) responded, including 15 (38%) complete and 8 (20%) partial responses. Median overall survival was 294 days (58-996 days) for responders versus 14 days for nonresponders (P < .001), with a 1 year probability of 59% vs 0% for overall survival (P < .0001). Patients without gastrointestinal (GI) involvement showed a higher response rate (100% versus 50% for those without versus with GI involvement, P = .03) In addition, patients who showed some response by day 15 had a higher overall survival (73 +/- 12% vs 24 +/- 12%, respectively, P = .02). The results of this study suggest that inolimomab [corrected] may be an effective salvage therapy for patients with steroid-refractory aGVHD, particularly for those without GI disease, and supports further studies with this agent in prospective controlled trials.

[Fibromyalgia, or whole body pain]. / Fibromialgia, o el dolor en todo el cuerpo.

Fibromyalgia is a rheumatic syndrome which is being recognized and diagnosed more often all the time. Its symptoms include a general state of pain not localized in the joints, combined with tremendous tiredness and sleep alterations. Although its exact etiology is still unknown, medical professionals speculate on the existence of multiple cause factors. Therefore, an integrated therapeutic treatment having the coordinated participation of medical professionals from different fields of expertise is necessary. Mental health professionals play an important role since it is proven the existence of psychological and socio-psychological factors at the start, during the duration of and in the evolution of this syndrome.

Fibromialgia o el dolor en todo el cuerpo / Fribomyalgia, or pain throughout the body

La fibromialgia es un síndrome reumatológico cada vez más reconocido y diagnosticado. Se manifiesta por un estado doloroso generalizado a nivel no articular, junto con un cansancio importante y alteraciones del sueño. Aunque aún no se conoce con exactitud la etiología, se postula la existencia de múltiples factores causales. Por ello es necesaria una atención terapéutica integral con la participación coordinada de diferentes disciplinas. Los profesionales de salud mental tienen una importancia especial, ya que está comprobada la existencia de factores psicológicos y psicosociales en el inicio, mantenimiento y evolución de este cuadro (AU)