Taqash Mohammad Amin Ayat

Dr. Taqash Mohammad Amin Ayat

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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12 July 2021 in Scientific Reports
Verified
Journal Article
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Hikmat Abdel-RazeqHikmat Abdel-Razeq
Hikmat Abdel-Razeq
SISereen Iweir
Sereen Iweir
RARashid Abdel-Razeq
Rashid Abdel-Razeq
FRFadwa Abdel Rahman
Fadwa Abdel Rahman
HAHanan Almasri
Hanan Almasri
HAHadeel Abdelkhaleq
Hadeel Abdelkhaleq
In developing countries, breast cancer is diagnosed at a much younger age. In this study we investigate the dichotomies between older and young breast cancer patients in our region. The study involved two cohorts; older patients (≥ 65 years, n = 553) and younger ones (≤ 40 years, n = 417). Statistical models were used to investigate the associations between age groups, clinical characteristics and treatment outcomes. Compared to younger patients, older patients were more likely to present with advanced-stage disease (20.6% vs. 15.1%, p = .028). However, among those with non-metastatic disease, younger patients tended to have more aggressive pathological features, including positive axillary lymph nodes (73.2% vs. 55.6%, p < .001), T-3/4 (28.2% vs. 13.8%, p < .001) and HER2-positive disease (29.3% vs. 16.3%, p < .001). The 5-year overall survival (OS) rate was significantly better for the younger (72.1%) compared to the older (67.6%), p = .035. However, no significant difference was observed in disease-free survival (DFS) between the two groups.In conclusion, younger patients with breast cancer present with worse clinical and pathological features, albeit a better OS rate. The difference in DFS between the two groups was not insignificant, suggesting that older women were more likely to die from non-cancer related causes.

1 September 2024 in ImmunoTargets and Therapy
Verified
Journal Article
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Hikmat Abdel-RazeqHikmat Abdel-Razeq
Hikmat Abdel-Razeq
BSBaha' Sharaf
Baha' Sharaf
SKSuhaib Khater
Suhaib Khater
HBHuda Jafar Baidoun
Huda Jafar Baidoun
HHHira Bani Hani
Hira Bani Hani
TRTala Radaideh
Tala Radaideh
Background: Cyclin-dependent kinase (CDK) 4/6 inhibitors have revolutionized the treatment landscape of hormone receptor-positive (HR+) and human epidermal growth factor receptor 2-negative (HER2 −) metastatic breast cancer (MBC). Here, we present the real-world clinical outcomes and toxicity data of patients treated at a single cancer center. Methods: A retrospective analysis was conducted on patients with HR+/HER2− MBC treated with ribociclib plus endocrine therapy (ET). Outcomes measured included progression-free survival (PFS), overall survival (OS), and adverse events. Results: A total of 356 patients (median age 52, range 27– 91 years) were enrolled, all with metastatic disease; 204 (57.5%) had de novo metastasis, and 183 (51.4%) had visceral metastasis. Ribociclib was combined with aromatase inhibitors in 321 patients (90.2%) and with fulvestrant in 35 patients (9.8%). Dose reduction was needed in 101 patients (28.4%), primarily due to neutropenia (21.3%) and abnormal liver enzymes (5.9%). After a median follow-up of 36.3 months, median PFS was 27.3 months (95% CI: 21.3– 31.7). PFS was significantly better in patients receiving ribociclib as first-line therapy (32.1 months, 95% CI: 27.7– 42.1, p < 0.0001) and those with non-visceral metastasis (38.6 months, 95% CI: 29.8–NR, p < 0.0001). Similarly, OS was significantly better in first-line treatment (48.6 months, 95% CI: 39.1–NR) and non-visceral metastasis cases (NR, 95% CI: 40.6–NR, p < 0.0001). No significant differences in 3-year PFS and OS were found between patients with and without dose reductions. Conclusion: In real-world settings, and away from the stringency of controlled clinical trials, endocrine therapy in combination with ribociclib in patients with HR-positive/HER2-negative MBC is an effective and well-tolerated therapy with a manageable toxicity profile and a low drug discontinuation rate. Dose reduction due to toxicity did not worsen the outcome.

23 April 2020 in Gastroenterology Research and Practice
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Journal Article
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BMBayan Maraqa
Bayan Maraqa
GAGhassan Al-Shbool
Ghassan Al-Shbool
OAOsama Abu-Shawer
Osama Abu-Shawer
MSMamoun Souleiman
Mamoun Souleiman
OAOsama Alshakhatreh
Osama Alshakhatreh
MAMaysa Al-Hussaini
Maysa Al-Hussaini
Purpose. Microsatellite instability (MSI) caused by mismatch repair protein (MMRP) deficiency is detected in 15% of sporadic colorectal cancers (CRCs). Our aim is to investigate the frequency of MMRP deficiency in young CRC patients, using immunohistochemical analysis. Methods. This study targeted cases of CRC at King Hussein Cancer Center from 2004 until 2012 in patients 45 years of age or younger at the time of diagnosis. Clinicopathological data was obtained from 155 patients’ records. Immunohistochemistry for MLH1, MSH2, PMS2, and MSH6 proteins was performed on paraffin-embedded tissue containing carcinoma. Results. The median age of patient at diagnosis was 38 years. A total of 29 (19%) cases showed deficient MMRP(dMMRP)expression. Loss of expression of PMS2 was seen in 17 cases, 12 cases of which showed loss of MLH1 expression. Loss of expression of MSH6 was seen in 10 cases, 9 of which showed loss of MSH2 expression. One case (3.4%) showed loss of all four MMR proteins, and another case (3.4%) showed loss of PMS2/MLH1 and MSH6. There was a significant association between abnormal MMR protein expression and tumor location proximal to splenic flexure (p value 0.000), pathologic features suggestive of microsatellite instability (p value 0.000), P53 negativity (p value 0.000), and stage (p value 0.02). Patients with dMMRP CRC appeared to have a significantly better overall survival compared to patients with proficient MMRP(pMMRP)(p value 0.02). Loss of MSH2/MSH6 was significantly associated with positive family history of cancer (p value = 0.020). Conclusions. The prevalence of dMMRP tumors in this age group appears to be similar to international literature. dMMRP tumors tends to be associated with earlier stages and better outcomes compared to pMMRP cases. dMMRP can serve as a biomarker for better prognosis. These results are of value in directing the clinical management of young patients with CRC.

19 April 2023 in Journal of Clinical Medicine
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Journal Article
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IMIssa Mohamad
Issa Mohamad
THTaher Abu Hejleh
Taher Abu Hejleh
SASania Abdelqader
Sania Abdelqader
LWLina Mahmoud Wahbeh
Lina Mahmoud Wahbeh
TATaqash Mohammad Amin Ayat
Taqash Mohammad Amin Ayat
AHAli Hosni
Ali Hosni
Salvage re-irradiation (rRT) for patients with locoregionally recurrent head and neck cancer (rHNC) remains challenging. A retrospective analysis was performed on 49 patients who received rRT between 2011 and 2018. The co-primary endpoint of the study was 2-year freedom from cancer recurrence rate (FCRR) and overall survival (OS), and secondary endpoints were 2-year disease-free survival (DFS), local failure (LF), regional failure (RF), distant metastases (DM), and RTOG grade 3 ≥ late toxicities. Adjuvant and definitive rRT were delivered to 22 and 27 patients, respectively. A total of 91% of patients were managed with conventional re-RT and 71% of patients received concurrent chemotherapy. The median follow-up after rRT was 30 months. The 2-year FCRR, OS, DFS, LF, RF, and DM were 64%, 51%, 28%, 32%, 9%, and 39% respectively. MVA showed that poor performance status (PS: 1–2 vs. 0) and age > 52 years were predictive of worse OS. In comparison, poor PS (1–2 vs. 0) and total dose of rRT < 60 Gy were predictive of worse DFS. Late RTOG toxicity of grade 3 ≥ was reported in nine (18.3%) patients. FCRR at 2 years after salvage rRT for rHNC was higher than other traditional endpoints and could be an important endpoint to be included in future rRT studies. rRT for rHNC at our cohort was relatively successful, with a manageable level of late severe toxicity. Replacing this approach in other developing countries is a viable option.

1 September 2023 in Journal of Multidisciplinary Healthcare
Verified
Journal Article
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MAMahmoud Abunasser
Mahmoud Abunasser
HAHala Abu-Fares
Hala Abu-Fares
Hikmat Abdel-RazeqHikmat Abdel-Razeq
Hikmat Abdel-Razeq
OSOmar Shamieh
Omar Shamieh
OSOsama Salama
Osama Salama
Hikmat Abdel-RazeqHikmat Abdel-Razeq
Hikmat Abdel-Razeq
Background: Contrary to Western societies, more than 15% of patients with breast cancer in Jordan are diagnosed with stage IV disease. In this study, we evaluate the value of early palliative care integration in the end-of-life care of such patients. Methods: All consecutive adult patients who died between 2014 to 2018, while under the care of our institution, with a confirmed diagnosis of breast cancer at the time of death, irrespective of place of death, were retrospectively reviewed. Results: During the study period, a total of 433 patients, median age 51.6 years, were included in the analysis. Among the whole group, 102 (23.6%) were referred to palliative care service early (≥ 30 days prior to death), 182 (42.0%) had late referral (< 30 days from death), while 149 (34.4%) were never referred and were followed up by their medical oncologists. During the last 30 days prior to death, patients who were never referred to palliative care were more likely to visit the Emergency Room (ER) more than once (OR 1.89, 95% CI 1.20– 2.99, p = 0.006), more likely to be admitted to the hospital more than once (OR 2.27, 95% CI 1.38– 3.73, p = 0.001), and more likely to be admitted to the intensive care unit (ICU) (OR 3.07, 95% CI 1.48– 6.38, p = 0.0027). Fewer patients in the “no referral” group died with advance directives compared to those who had early or late referral; 60.8%, 75.0% and 82.5%, respectively, p = 0.0003. Survival of patients followed by medical oncologist was not better than those referred to palliative care, either late or early; median survival was 19.0, 19.1 and 23.8 months, respectively (p = 0.2338). Conclusion: Findings suggest that earlier palliative care referral is associated with less aggressive end-of-life care, leading to less frequent ER visits, hospital and ICU admissions during the last month of life, and does not compromise survival.

1 September 2024 in JCO Global Oncology
Verified
Journal Article
Closed access
RARamiz Ahmad Abu-Hijlih
Ramiz Ahmad Abu-Hijlih
SSSamer Salah
Samer Salah
HAHaneen Abaza
Haneen Abaza
TATaqash Mohammad Amin Ayat
Taqash Mohammad Amin Ayat
HAHadeel Abdelkhaleq
Hadeel Abdelkhaleq
SAShrideh Al-Omari
Shrideh Al-Omari
PURPOSE: Metastatic prostate cancer (Pca) is a complex disease with diverse clinical characteristics and outcomes across the geographical distribution. Herein, we present a series of patients from the Middle East, aiming at identifying disease outcomes and prognostic factors specific to this regional context. METHODS AND MATERIALS: This is a retrospective study of patients with metastatic Pca, diagnosed at King Hussein Cancer Center, Jordan, between 2006 and 2018. Survival was estimated using the Kaplan-Meier method and compared using the log-rank test. Factors that significantly affected overall survival (OS) in the univariable analysis were examined in a multivariable Cox regression analysis. RESULTS: A total of 188 patients with metastatic Pca were included in this analysis, of whom 168 (89%) had de novo metastatic disease. The median age at diagnosis was 68 years, 144 (77%) had bone metastasis, 32 (17%) had visceral metastasis, and 126 (67%) had high-volume disease. At a median follow-up of 67 months, the median OS was 44.3 months. The following factors predicted inferior OS in univariable analysis: smoking, normal BMI, high-volume disease, high alkaline phosphatase (ALP), previous local therapy for prostate, and orchiectomy versus medical androgen deprivation therapy (ADT). On multivariable analysis, high-volume disease (hazard ratio [HR], 1.92 [95% CI, 1.17 to 3.13]; P = .0094), high ALP (HR, 2.136 [95% CI, 1.38 to 3.31]; P < .001), and orchiectomy (HR, 2.40 [95% CI, 1.51 to 3.82]; P < .001) emerged as independent factors for inferior OS. CONCLUSION: Metastatic Pca outcomes in our population closely align with the global benchmark. High volume status, elevated ALP, and performance of surgical as opposed to medical ADT emerge as prognostic indicators of poor survival.