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J Gandhara Med Dent Sci
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ORIGINAL ARTICLE
:
:
ABSTRACT
OBJECTIVES
This study aimed to determine the frequency of cytopenias among patients
receiving hepatitis C therapy and to examine their relationship with dierent
treatment regimens
METHODOLOGY
RESULTS
The mean age of participants was 40.1 ± 9.0 years, with a male
predominance (55.8%). The overall SVR rate was 80.5%, with the highest
response observed in patients treated with sofosbuvir/velpatasvir (90.8%;
95% CI: 82.1-96.2). Cytopenias were observed in a considerable proportion
of patients, with anemia being the most common (23.9%; 95% CI: 16.1-31.7),
followed by Thrombocytopenia (9.7%), leukopenia (8.8%), and pancytopenia
(6.2%).
A statistically signicant association was found between treatment regimen
and cytopenias (p < 0.001), with a strong eect size for anemia (Cramer’s V
= 0.768). Multivariate analysis identied treatment regimen as the only
independent predictor of anemia. Patients receiving sofosbuvir/velpatasvir
had signicantly lower odds of anemia than those receiving conventional
therapy (AOR = 0.006; 95% CI: 0.001-0.054; p < 0.001).
CONCLUSION
Direct-acting antiviral therapy, particularly sofosbuvir/velpatasvir, is
associated with high virological response and a lower frequency of
cytopenias. However, given the observational design, ndings should be
interpreted cautiously. Further multicenter studies are recommended.
KEYWORDS: Hepatitis C, Direct-acting antivirals, Ribavirin, Cytopenias,
SVR.
How to cite this article
Date of Submission: 12-03-2026
Date Revised: 16-03-2026
Date Acceptance: 17-03-2026
2
Assistant Professor, Department of
General Internal Medicine, Medical C
Unit, MTI, Lady Reading Hospital,
Peshawar
Correspondence
1
Shadman Ahmad Jan, Post Graduate
Resident, General Internal Medicine,
Medical C Unit, MTI, Lady Reading
Hospital, Peshawar
+92-331-9379720
shadman788@gmail.com
INTRODUCTION
Hepatitis C virus is one of the major health concerns
among bloodborne viral infections, aecting
approximately 71 million people worldwide, with a
prevalence of 2.8%.
1
The burden of HCV has been
reported to be higher in low-and middle-income
countries. Cytopenias, a deciency of mature blood
cells resulting in anemia, leukopenia, and
Thrombocytopenia, are major complications associated
with HCV infection, especially during antiviral
therapy.
2
Thrombocytopenia, aecting up to 37% of
HCV patients, is the rst abnormality detected in
routine laboratory tests, way before diagnosis of
cirrhosis.
3
The risk is reportedly associated with disease
progression and is aected by interferon-based antiviral
treatment.
4
As the burden of HCV in Asia is
significantly higher, prevalence in Egypt, India, and
Pakistan is among the highest worldwide.
5
The second-
highest burden of HCV disease is reported in Pakistan,
with a prevalence of 4.5% to 8.2%. The overall
prevalence of Thrombocytopenia is reported to be
23.5%-37% in HCV patients.
6
Risk is higher in patients
with prolonged illness and associated comorbidities,
including thalassemia, end-stage renal disease patients
who are dialysis dependent, with a prevalence of 32%-
46% Cytopenias continue to be a major clinical
dilemma among the health care providers in the high-
ASSESSING THE FREQUENCY OF CYTOPENIAS IN PATIENTS WITH HEPATITIS C THERAPY:
Shadman Ahmad Jan
1
, Naveed Iqbal
2
, Ilyas Muhammad
1
, Zahid Ullah
1
, Ijaz Hussain
1
AN ANALYTICAL DESCRIPTIVE OBSERVATIONAL STUDY
This analytical descriptive observational study was conducted over six
months (May-October 2024) at the Department of Medicine and
Gastroenterology, Lady Reading Hospital, Peshawar. A total of 113 patients
aged 20-70 years with chronic hepatitis C receiving antiviral therapy were
included using consecutive sampling. Data were collected at the 12-week
follow-up. Hematological parameters and sustained virological response
(SVR) were assessed. Data were analyzed using SPSS version 25. Chi-square
test, Cramer’s V, and multivariate logistic regression were applied. A p-value
≤0.05 was considered statistically signicant.
Jan S A,Iqbal N,Muhammad I,
Ullah Z, Hussain I. Assessing the
Frequency of Cytopenias in Patients
with Hepatitis C Therapy: An Analytical
Descriptive Observational Study.
J Gandhara Med Dent Sci.2026;13(2):
50-60.
https://doi.org/10.37762/jgmds.13-2.892
56
J Gandhara Med Dent Sci
April - June 2026
burden, low and middle-income nations such as
Pakistan.
7
The severity of Cytopenias inuences the
treatment advancements of HCV, leading to a high rate
of morbidity and antiviral therapy discontinuation.
8
The
need for area-based data on the frequency,
determinants, and risk factors of cytopenias in patients
receiving antiviral therapy for HCV is important for
mapping prevention strategies, improving patient
management, reducing morbidity, and enhancing
treatment outcomes. Routine hematologic tests will
assist health professionals in tracking and identifying
patients at risk, managing treatment regimens, and
allocating resources.
9
This study aims to assess the
frequency of cytopenias in patients on hepatitis C
therapy after a 12-week follow-up visit at Lady Reading
Hospital in Peshawar (LRH).
METHODOLOGY
This analytical cross-sectional study was conducted at
the Department of Medicine and Gastroenterology,
Lady Reading Hospital (LRH), Peshawar. Ethical
approval was obtained from the Institutional Review
Board of LRH (ERC#156/LRH/MTI). The study was
carried out over a period of six months from 20
th
May
2024 to November 2024. Written informed consent was
obtained from all participants, and the study adhered to
the Declaration of Helsinki. A total of 113 adult
patients diagnosed with chronic hepatitis C and
receiving antiviral therapy were included in the study.
A consecutive non-probability sampling technique was
used to recruit eligible participants who had attended
the medical or gastroenterology outpatient or inpatient
departments after completing 12 weeks of hepatitis C
treatment. Consecutive, non-probability sampling
technique was used. The sample size was calculated
using the WHO sample size formula for proportion
estimation: n = Z² × p × (1−p) / d²
where Z = 1.96 at a 95% condence level, p = 0.32
(expected prevalence of anemia among patients with
hepatitis C based on previous regional studies) and d =
0.08 (margin of error).
10
The calculated sample size was
approximately 113 participants, and all eligible patients
meeting the inclusion criteria during the study period
were included in the nal analysis. These included
patients aged 20-70 years who had conrmed hepatitis
C infection and were under antiviral therapy using
direct-acting antivirals (DAAs) or a conventional
regimen. The study excluded patients with an acute
case of hepatitis C infection, fulminant hepatitis,
cytopenias that had been previously diagnosed before
treatment, hematological malignancies,
myeloproliferative disorders, multiple myeloma,
decompensated chronic liver disease, liver transplant
patients, or hepatocellular carcinoma. Data were
collected using a pre-structured questionnaire
consisting of three sections. The rst section recorded
demographic characteristics, including age, gender,
residence, socioeconomic status, and occupation. The
second section included clinical variables such as
hepatitis C infection duration, treatment regimen, and
sustained virological response (SVR). The third section
included laboratory investigations, including complete
blood count (hemoglobin, white blood cell count, and
platelet count), liver function tests (ALT and AST), and
HCV RNA PCR results. Cytopenias were dened using
standardized laboratory criteria. Anemia was dened
according to World Health Organization thresholds as
hemoglobin <12 g/dL in females and <13 g/dL in
males, while leukopenia and Thrombocytopenia were
defined as white blood cell count <4.0 ×10⁹/L and
platelet count <150 ×10⁹/L respectively, based on
established hematological reference ranges.
Pancytopenia was dened as a simultaneous reduction
in all three cell lines.
11
The 12-week follow-up visit was
conducted to obtain blood samples from eligible
patients. This time point was selected as it corresponds
to the standard assessment of sustained virological
response (SVR12) and allows evaluation of early
hematological adverse eects of antiviral therapy.
Sustained virological response (SVR) was established
by demonstrating HCV RNA levels below the limit of
detection in qualitative and quantitative PCR analysis
following therapy. This study was conducted and
reported in accordance with the STROBE guidelines.
All collected data were entered and analyzed using
Statistical Package for Social Sciences (SPSS) version
25. The quantitative variables, including age, the period
of hepatitis C infection, the period of therapy, and the
laboratory measures, were reported as the mean ±
standard deviation. Categorical variables included
gender, residence, treatment regimen, and the presence
of cytopenias (anemia, leukopenia, Thrombocytopenia,
and pancytopenia), and were also expressed as
frequencies and percentages. Associations between
treatment regimens and study outcomes, including SVR
and cytopenias, were evaluated using the Chi-square
test. The strength of association was assessed using
Cramer’s V. A p-value ≤ 0.05 was considered
statistically signicant.
RESULTS
A total of 113 patients receiving hepatitis C antiviral
therapy were included in the nal analysis. The mean
age of participants was 40.1 ± 9.0 years (95% CI: 38.4-
41.8), indicating a predominantly middle-aged
population. There was a slight male predominance, with
63 (55.8%) males and 50 (44.2%) females. Most
participants resided in urban areas (69.0%), and over
Assessing the Frequency of Cytopenias in Patients
57
J Gandhara Med Dent Sci
April - June 2026
half belonged to the moderate socioeconomic class
(51.3%). The mean duration of hepatitis C infection
was 29.6 ± 10.1 months, while the mean duration of
therapy was 12.3 ± 1.3 weeks. A statistically signicant
association was observed between treatment regimen
and sustained virological response (SVR) (χ² = 23.31, p
< 0.001). Patients receiving SOF/VEL achieved the
highest SVR rate (90.8%; 95% CI: 82.1-96.2), followed
by SOF+RBV (72.0%; 95% CI: 50.6-87.9), whereas
conventional therapy demonstrated the lowest response
(33.3%; 95% CI: 9.9-65.1). The eect size was
moderate (Cramer‘s V = 0.454), indicating a clinically
meaningful association between treatment regimen and
virological response. At the 12-week follow-up,
hematological parameters revealed a mean hemoglobin
level of 11.36 ± 1.64 g/dL (95% CI: 11.06-11.67). The
mean white blood cell count was 4.91 ± 1.38 ×10⁹/L
(95% CI: 4.65-5.16), while the mean platelet count was
169.96 ± 52.96 ×10⁹/L (95% CI: 160.09-179.83).
Biochemical assessment showed a mean ALT level of
49.18 ± 24.59 IU/L (95% CI: 44.59-53.76) and a mean
AST level of 39.98 ± 17.83 IU/L (95% CI: 36.66–
43.31). Cytopenias were observed in a notable
proportion of patients. Anemia was the most frequent
abnormality (23.9%; 95% CI: 16.1-31.7), followed by
Thrombocytopenia (9.7%; 95% CI: 4.2-15.2),
leukopenia (8.8%; 95% CI: 3.6-14.0), and pancytopenia
(6.2%; 95% CI: 1.8-10.6). There was a statistically
significant association between treatment regimen and
cytopenias. Anemia was most prevalent among patients
receiving SOF+RBV (64.0%) and conventional therapy
(83.3%), while it was rare in the SOF/VEL group
(1.3%) (χ² = 66.73, p < 0.001). The eect size was
strong (Cramer‘s V = 0.768), indicating a substantial
clinical dierence across treatment groups. Similarly,
leukopenia was highest in the conventional therapy
group (50.0%), followed by SOF+RBV (8.0%) and
SOF/VEL (2.6%) (χ² = 28.86, p < 0.001).
Thrombocytopenia was more frequent in SOF+RBV
(20.0%) and conventional therapy (25.0%) compared to
SOF/VEL (3.9%) (χ² = 9.08, p = 0.011). Pancytopenia
was observed only in RBV-containing and conventional
regimens, further highlighting the improved
hematological safety profile of SOF/VEL. To address
potential confounding, multivariate logistic regression
analysis was performed. The overall model was
statistically signicant (χ² = 74.78, p < 0.001) and
demonstrated good t (Hosmer–Lemeshow test p =
0.946). The model explained 72.6% of the variance
(Nagelkerke R² = 0.726) and correctly classied 90.3%
of cases. Treatment regimen emerged as the only
independent predictor of anemia. Patients receiving
SOF/VEL had signicantly lower odds of developing
anemia than those receiving conventional therapy
(AOR = 0.006; 95% CI: 0.001-0.054; p < 0.001),
indicating a strong protective eect. Although
SOF+RBV was associated with increased odds of
anemia (AOR = 4.10; 95% CI: 0.61-27.60), this
association did not reach statistical significance (p =
0.147). Other variables, including age, gender, duration
of hepatitis C infection, and duration of therapy, were
not significantly associated with anemia.
Table 1: Demographic Characteristics of Patients (n = 113)
Variable Category Frequency (%) /
Mean ± SD
Age (years)
-
40.1 ± 9.0
Duration of Hepatitis
C (months)
-
29.6 ± 10.1
Duration of Therapy
(weeks)
- 12.3 ± 1.3
Gender Male 63 (55.8%)
Female 50 (44.2%)
Residence Urban 78 (69.0%)
Rural 35 (31.0%)
Socioeconomic Status Low 43 (38.1%)
Moderate 58 (51.3%)
High 12 (10.6%)
Occupation Laborer 41 (36.3%)
Housewife 26 (23.0%)
Table 2: Association between Treatment Regimen and SVR
(n = 113)
Treatment
Regimen
SVR
Yes
n(%)
SVR
No n
(%)
Tot
al
χ² P-value
Cramer’s
V
SOF/VEL
69
(90.8%)
7
(9.2%)
76 23.
31
<0.001 0.454
SOF+RBV
18
(72.0%)
7
(28.0
%)
25
Conventio
nal
4
(33.3%)
8
(66.7%)
12
Table 3: Laboratory Parameters at 12-week followup (n=113)
Parameter Mean ± SD Mini
mum
Maxi
mum
95% CI
Hemoglobin
(g/dL)
11.36 ±
1.64
7.50 15.00 11.06–11.67
WBC (×10⁹/L) 4.91 ± 1.38 2.00 8.34 4.65–5.16
Platelets
(×10⁹/L)
169.96 ±
52.96
57 322 160.09–
179.83
ALT (IU/L) 49.18 ±
24.59
10 113 44.59–53.76
AST (IU/L) 39.98 ±
17.83
10 95 36.66–43.31
Table 4: Overall Frequency of Cytopenias (n = 113)
Cytopenia Frequency (n) %age 95% CI
Anemia 27 23.9 16.131.7
Leukopenia 10 8.8 3.6–14.0
Thrombocytopenia 11 9.7 4.2–15.2
Pancytopenia 7 6.2 1.8–10.6
Assessing the Frequency of Cytopenias in Patients
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J Gandhara Med Dent Sci
April - June 2026
Table 5: Frequency of Cytopenias by Treatment Regimen
(n = 113)
Cytope
nia
SOF/
VEL
(n=76)
SOF+R
BV
(n=25)
Conve
ntional
(n=12)
χ²
p-
value
Cram
er’s V
Anemi
a
1
(1.3%)
16
(64.0%)
10
(83.3%)
66.
73
<0.0
01
0.768
Leukop
enia
2
(2.6%)
2
(8.0%)
6
(50.0%)
28.
86
<0.0
01
0.505
Throm
bocyto
penia
3
(3.9%)
5
(20.0%)
3
(25.0%)
9.08
0.011
0.283
Pancyt
openia
0 (0%)
6
(24.0%)
1
(8.3%)
18.
75
<0.0
01
0.407
Table 6: Multivariate Logistic Regression for Predictors of
Anemia
Variable AOR 95% CI p-value
Age 1.01 0.93–1.10 0.810
Gender 0.33 0.07–1.55 0.161
Duration
HCV
1.02 0.94–1.10 0.700
Duration
Therapy
0.69 0.43–1.11 0.123
SOF+RBV vs
Conventional
4.10 0.61–27.60 0.147
SOF/VEL vs
Conventional
0.006 0.001–0.054 <0.001
DISCUSSION
This study evaluated the frequency of cytopenias and
treatment outcomes among patients receiving hepatitis
C antiviral therapy in a tertiary care setting. The
findings demonstrate that direct-acting antiviral (DAA)
regimens, particularly sofosbuvir/velpatasvir
(SOF/VEL), are associated with signicantly higher
sustained virological response (SVR) rates and a
markedly lower incidence of hematological
complications compared to ribavirin-containing and
conventional therapies. The overall SVR rate observed
in this study (80.5%) is consistent with real-world data
from low- and middle-income countries, although
slightly lower than the >90% rates reported in
controlled clinical trials. Patients treated with SOF/VEL
achieved the highest SVR (90.8%), consistent with
recent studies demonstrating the high ecacy of pan -
genotypic DAA regimens across diverse populations. A
multicenter study by Mushtaq et al. reported SVR rates
exceeding 90% with SOF/VEL in genotype 3 patients,
supporting the eectiveness observed in our cohort.
12
Similarly, a large meta-analysis published in the Journal
of Hepatology conrmed superior virological outcomes
with interferon-free DAA regimens compared to older
therapies.
13
A key nding of this study is the
signicant association between treatment regimen and
cytopenias, with a particularly strong eect size
observed for anemia (Cramer‘s V = 0.768). The strong
effect size indicates a clinically meaningful dierence,
determinant of hematological toxicity. This indicates a
substantial clinical impact of treatment choice on
hematological outcomes. Patients receiving ribavirin-
containing regimens demonstrated markedly higher
rates of anemia, consistent with the well-established
mechanism of ribavirin-induced hemolysis. Ribavirin
accumulates in erythrocytes, leading to oxidative
membrane damage and premature red cell destruction.
Previous clinical and pharmacological studies have
consistently demonstrated this mechanism and its
association with treatment-related anemia.
14
In contrast,
the SOF/VEL regimen demonstrated a signicantly
lower frequency of cytopenias, particularly anemia
(1.3%), highlighting its favorable safety prole. This
finding is strongly supported by contemporary
evidence, including a systematic review by Zoratti et
al., which concluded that pangenotypic DAA regimens
are associated with minimal hematological toxicity.
15
The markedly reduced odds of anemia observed in our
multivariate analysis (AOR = 0.006) further emphasize
the protective eect of SOF/VEL, even after adjusting
for potential confounders. Leukopenia and
Thrombocytopenia were also more prevalent among
patients receiving conventional or ribavirin-containing
regimens. These ndings are consistent with previous
reports indicating bone marrow suppression associated
with interferon-based therapies. A recent study by Xia
H et al. (2020) demonstrated similar trends, with
significantly higher rates of cytopenias in patients
treated with older antiviral regimens compared with
those treated with modern DAAs.
16
The variability
observed across treatment groups in our study may also
be inuenced by baseline disease severity, nutritional
status, and liver function, factors that were not fully
adjusted in this analysis. The multivariate logistic
regression analysis identied treatment regimen as the
only independent predictor of anemia, whereas
demographic and clinical variables such as age, gender,
and disease duration were not signicantly associated.
This nding underscores the dominant role of
pharmacological factors over patient-related
characteristics in determining hematological toxicity
during hepatitis C treatment. Similar observations have
been reported in recent real-world studies evaluating
predictors of adverse effects in DAA-treated
patients.
17,18
Nevertheless, this study provides important
real-world evidence from a high-burden setting,
highlighting both the ecacy and safety advantages of
modern DAA regimens. The ndings support current
global recommendations favoring ribavirin-sparing
regimens and emphasize the need for routine
hematological monitoring, particularly in patients
receiving ribavirin or older therapies.
19,20
suggesting that the treatment regimen is a major
Assessing the Frequency of Cytopenias in Patients
59
J Gandhara Med Dent Sci
April - June 2026
LIMITATIONS
It was conducted in a single tertiary care center, which
may limit the generalizability of ndings. Baseline
hematological parameters and liver disease severity
(e.g., brosis stage, cirrhosis status) were not included
in the regression model, potentially confounding the
observed associations. The relatively small sample size
in the conventional therapy group may have aected
the precision of estimates. Additionally, longer follow-
up beyond 12 weeks would be valuable to assess late-
onset hematological complications.
CONCLUSIONS
Direct-acting antiviral regimens, particularly
sofosbuvir/velpatasvir, are associated with higher
sustained virological response rates and a lower
frequency of cytopenias compared to ribavirin-
containing and conventional therapies. The treatment
regimen emerged as the primary determinant of
hematological outcomes. However, given the
observational design and limited adjustment for
confounders, these ndings should be interpreted with
caution. Further multicenter studies with larger sample
sizes and comprehensive clinical data are recommended
to validate these results.
CONFLICT OF INTEREST: None
FUNDING SOURCES: None
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Assessing the Frequency of Cytopenias in Patients
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Shadman Ahmad Jan - Concept & Design; Data Acquisition;
Data Analysis/Interpretation; Drafting Manuscript; Critical
Revision; Final Approval
Naveed Iqbal - Concept & Design; Data Acquisition; Data
Analysis/Interpretation; Drafting Manuscript; Critical
Revision; Supervision; Final Approval
Ilyas Muhammad - Concept & Design; Data Acquisition; Data
Analysis/Interpretation; Drafting Manuscript; Critical Revision;
Supervision; Final Approval
Zahid ullah - Concept & Design; Data Acquisition; Data
Analysis/Interpretation; Drafting Manuscript; Critical Revision;
Supervision; Final Approval
Ijaz Hussain - Concept & Design; Data Acquisition; Data
Analysis/Interpretation; Drafting Manuscript; Critical Revision;
Supervision; Final Approval
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and will ensure that any concerns regarding the accuracy or
integrity of any part are properly investigated and resolved.
Assessing the Frequency of Cytopenias in Patients