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Exploring Renal Transplants Using Hepatitis C Infected Donors for HCV-negative Recipients

An Open-label Pilot Study to Determine the Tolerability and Efficacy of Fixed-dose Grazoprevir/Elbasvir Treatment in Hepatitis C Uninfected Recipients of Renal Transplants From Hepatitis C Infected Deceased Donors

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02781649
Acronym
EXPANDER-1
Enrollment
10
Registered
2016-05-24
Start date
2016-07-20
Completion date
2018-01-01
Last updated
2018-09-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

End-Stage Renal Disease, Hepatitis C

Keywords

Renal, Transplants, Hepatitis C, HCV-negative, Infected, Donors

Brief summary

In this study, individuals without hepatitis C infection who are on the kidney transplant waitlist will receive a kidney from a deceased donor with hepatitis C infection and will be treated for hepatitis C at the same time. Treatment will include Grazoprevir (GZR) 100 mg/Elbasvir (EBR) 50 mg administered on-call to the operating room for the renal transplant procedure and continued for 12 weeks post-renal transplant.

Detailed description

In this study, individuals without hepatitis C infection who are on the kidney transplant waitlist will receive a kidney from a deceased donor with hepatitis C infection and will be treated for hepatitis C at the same time. Hepatitis C treatment will include Grazoprevir (GZR) 100 mg/Elbasvir (EBR) 50 mg administered on-call to the operating room for the renal transplant procedure and continued for 12 weeks post-renal transplant. The donor hepatitis C genotype will be tested. If the donor has genotype 1a without resistance or genotype 1b treatment will remain GZR/EBR for 12 weeks. If the donor has genotype 1a with resistance variants, then Ribavirin will be added and treatment will be given for 16 weeks starting from the date ribavirin was added. If the donor has hepatitis C genotype 2 or 3, Sofosbuvir will be added and treatment will be for 12 weeks from the date Sofosbuvir was added.

Interventions

Fixed dose Grazoprevir 100 mg/Elbasvir 50 mg by mouth daily for 12 weeks

DRUGRibavirin

Ribavirin 1200 mg/d (\> 75 kg) or 1000 mg/d (\< 75 kg) by mouth daily in two divided doses

DRUGSofosbuvir

Sofosbuvir 400 mg daily

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
Johns Hopkins University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants ≥ 50 years old * On the deceased donor kidney waiting list at Johns Hopkins Hospital * Awaiting a first kidney transplant * No available living kidney donors * On hemodialysis or peritoneal dialysis or stage 5 chronic kidney disease (CKD) defined as a glomerular filtration rate \< 15 ml/min for ≥ past 90 days * HCV-uninfected (by both antibody and RNA PCR) and without any behavioral risk factors for contracting HCV other than being on hemodialysis. * Calculated panel reactive anti-human leukocyte antigen (HLA) antibody (cPRA) below 20 percent * Female who is: * practicing total abstinence from sexual intercourse (minimum 1 complete menstrual cycle) * sexually active with female partners only * not of childbearing potential: defined as postmenopausal for at least 2 years prior to screening defined as amenorrheic for longer than 2 years, age appropriate, and confirmed by a follicle-stimulating hormone level indicating a postmenopausal state, or surgically sterile: defined as bilateral tubal ligation, bilateral oophorectomy or hysterectomy or has a vasectomized partner(s); * of childbearing potential and sexually active with male partner(s): currently using at least one effective method of birth control at the time of screening and agree to practice two effective methods of birth control while receiving study drug (as outlined in the participant information and consent form starting with Study Day 1 and for 30 days after stopping study drug, or for 6 months after stopping study drug if receiving RBV (Note: Estrogen-containing hormonal contraceptives, including oral, injectable, implantable, patch and ring varieties, may not be used during study drug treatment). * Males who are not surgically sterile and are sexually active with female partner(s) of childbearing potential must agree to practice two effective forms of birth control (as outlined in the participant information and consent form) throughout the course of the study, starting with starting with Study Day 1 and for 30 days after stopping study drug, or for 6 months after stopping study drug if receiving ribavirin (RBV)

Exclusion criteria

* Plan to receive a multi-organ transplant * Plan to receive a dual kidney transplant (including en bloc) * Prior solid organ transplant * Participating in another study that involves an intervention or investigational product * Plan to receive a blood type incompatible kidney * History of human immunodeficiency (HIV), hepatitis C (HCV), or active hepatitis B (HBV) infection defined as being on active antiviral treatment for HBV, detectable hepatitis B surface Ag or detectable hepatitis B DNA * Active or unresolved bacterial, viral, or fungal infection that is clinically significant * History of cirrhosis or pre-existing liver disease such as non-alcoholic steatohepatitis * History of illicit drug use or alcohol abuse within 12 months prior to screening * Psychiatric or physical illness that in the opinion of the investigator would make it unsafe to proceed with transplantation or interfere with the ability of the subject to participate in the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Grade 3 or Higher Treatment-related Adverse Events as US Department of Health and Human Services Common Terminology of Adverse Events (CTCAE) Version 412 weeks after transplantProportion of participants with grade 3 or higher treatment-related adverse events (AE) as assessed by US Department of Health and Human Services Common Terminology of AEs version 4. An AE is an unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medical treatment or procedure that may or may not be considered related to the medical treatment or procedure. Grade refers to the severity of the AE. The CTCAE displays Grades 1 through 5. Grade 3 Severe or medically significant but not life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; Grade 4 Life-threatening consequences; urgent intervention indicated. Grade 5 Death related to AE. The investigator will determine if the AE is related to the treatment.

Secondary

MeasureTime frameDescription
Antibody Development12 weeksNumber of kidney transplant recipients who become reactive for HCV antibody
Number of Participants With Nonstructural Protein 5A (NS5A) Resistance Mutations in the HCV Population From the Deceased DonorsBaselineNumber of participants with NS5A resistance mutations in the HCV population from the deceased donors. Number of donors with NS5A resistance mutations
Viral Response12 weeks after completing treatmentThis is the number of participants with undetectable hepatitis C RNA in the blood at 12 weeks after stopping treatment. Proportion of kidney transplant recipients with HCV RNA \< Lower Limit Of Quantification (LLOQ) at week 12
Kidney Function at 6 Months6 months following transplantationSerum creatinine mg/dL at 6 months following transplantation
Kidney Function at 12 Months12 months following transplantationSerum creatinine mg/dL at 12 months following transplantation
IP-10 Elevations12 weeksMeasurement of interferon (IFN)-gamma inducible protein 10 (IP-10) a marker of acute hepatitis C infection.

Countries

United States

Participant flow

Participants by arm

ArmCount
Donor Genotype 1a no Resistance or 1b
Participants who receive donors found to have hepatitis C genotype 1a without resistance Zepatier one tablet daily for 12 weeks Zepatier: Fixed dose Grazoprevir 100 mg/Elbasvir 50 mg by mouth daily for 12 weeks
7
Donor Genotype 1a With Resistance
Participants who receive donors found to have hepatitis C genotype 1a with nonstructural protein 5A associated resistance mutations Zepatier one tablet daily for 16 weeks Ribavirin weight based dosing for 16 weeks Zepatier: Fixed dose Grazoprevir 100 mg/Elbasvir 50 mg by mouth daily for 12 weeks Ribavirin: Ribavirin 1200 mg/d (\> 75 kg) or 1000 mg/d (\< 75 kg) by mouth daily in two divided doses
0
Donor Genotype 2 or 3
Participants who receive donors found to have hepatitis C genotype 2 or 3 Zepatier one tablet daily for 12 weeks Sofosbuvir 400 mg daily for 12 weeks Zepatier: Fixed dose Grazoprevir 100 mg/Elbasvir 50 mg by mouth daily for 12 weeks Sofosbuvir: Sofosbuvir 400 mg daily
3
Total10

Baseline characteristics

CharacteristicDonor Genotype 1a no Resistance or 1bDonor Genotype 1a With ResistanceDonor Genotype 2 or 3Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
7 Participants0 Participants1 Participants8 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants2 Participants2 Participants
Age, Continuous71 years61 years71 years
Hepatitis C virus (HCV) antibody negative7 Participants0 Participants3 Participants10 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
6 Participants0 Participants2 Participants8 Participants
Region of Enrollment
United States
7 participants3 participants10 participants
Sex: Female, Male
Female
1 Participants0 Participants1 Participants2 Participants
Sex: Female, Male
Male
6 Participants0 Participants2 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 70 / 00 / 3
other
Total, other adverse events
0 / 70 / 00 / 3
serious
Total, serious adverse events
3 / 70 / 01 / 3

Outcome results

Primary

Number of Participants With Grade 3 or Higher Treatment-related Adverse Events as US Department of Health and Human Services Common Terminology of Adverse Events (CTCAE) Version 4

Proportion of participants with grade 3 or higher treatment-related adverse events (AE) as assessed by US Department of Health and Human Services Common Terminology of AEs version 4. An AE is an unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medical treatment or procedure that may or may not be considered related to the medical treatment or procedure. Grade refers to the severity of the AE. The CTCAE displays Grades 1 through 5. Grade 3 Severe or medically significant but not life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; Grade 4 Life-threatening consequences; urgent intervention indicated. Grade 5 Death related to AE. The investigator will determine if the AE is related to the treatment.

Time frame: 12 weeks after transplant

Population: There were no participants who received donors found to have hepatitis C genotype 1a with resistance enrolled.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Donor Genotype 1a no Resistance or 1bNumber of Participants With Grade 3 or Higher Treatment-related Adverse Events as US Department of Health and Human Services Common Terminology of Adverse Events (CTCAE) Version 40 Participants
Donor Genotype 1a With ResistanceNumber of Participants With Grade 3 or Higher Treatment-related Adverse Events as US Department of Health and Human Services Common Terminology of Adverse Events (CTCAE) Version 40 Participants
Donor Genotype 2 or 3Number of Participants With Grade 3 or Higher Treatment-related Adverse Events as US Department of Health and Human Services Common Terminology of Adverse Events (CTCAE) Version 40 Participants
Secondary

Antibody Development

Number of kidney transplant recipients who become reactive for HCV antibody

Time frame: 12 weeks

Population: There were no participants who received a kidney from a donor with genotype 1a infection and resistance. Therefore this population is zero.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Donor Genotype 1a no Resistance or 1bAntibody Development3 Participants
Donor Genotype 1a With ResistanceAntibody Development0 Participants
Donor Genotype 2 or 3Antibody Development2 Participants
Secondary

IP-10 Elevations

Measurement of interferon (IFN)-gamma inducible protein 10 (IP-10) a marker of acute hepatitis C infection.

Time frame: 12 weeks

Population: Data were not collected

Secondary

Kidney Function at 12 Months

Serum creatinine mg/dL at 12 months following transplantation

Time frame: 12 months following transplantation

Population: There were no participants who received a kidney from a donor with genotype 1a infection and resistance. Therefore this population is zero.

ArmMeasureValue (MEDIAN)
Donor Genotype 1a no Resistance or 1bKidney Function at 12 Months1.0 mg/dL
Donor Genotype 2 or 3Kidney Function at 12 Months1.3 mg/dL
Secondary

Kidney Function at 6 Months

Serum creatinine mg/dL at 6 months following transplantation

Time frame: 6 months following transplantation

Population: There were no participants who received a kidney from a donor with genotype 1a infection and resistance. Therefore this population is zero.

ArmMeasureValue (MEDIAN)
Donor Genotype 1a no Resistance or 1bKidney Function at 6 Months1.12 mg/dL
Donor Genotype 2 or 3Kidney Function at 6 Months0.9 mg/dL
Secondary

Number of Participants With Nonstructural Protein 5A (NS5A) Resistance Mutations in the HCV Population From the Deceased Donors

Number of participants with NS5A resistance mutations in the HCV population from the deceased donors. Number of donors with NS5A resistance mutations

Time frame: Baseline

Population: There were no participants who received a kidney from a donor with genotype 1a infection and resistance. Therefore this population is zero.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Donor Genotype 1a no Resistance or 1bNumber of Participants With Nonstructural Protein 5A (NS5A) Resistance Mutations in the HCV Population From the Deceased Donors0 Participants
Donor Genotype 1a With ResistanceNumber of Participants With Nonstructural Protein 5A (NS5A) Resistance Mutations in the HCV Population From the Deceased Donors0 Participants
Donor Genotype 2 or 3Number of Participants With Nonstructural Protein 5A (NS5A) Resistance Mutations in the HCV Population From the Deceased Donors0 Participants
Secondary

Viral Response

This is the number of participants with undetectable hepatitis C RNA in the blood at 12 weeks after stopping treatment. Proportion of kidney transplant recipients with HCV RNA \< Lower Limit Of Quantification (LLOQ) at week 12

Time frame: 12 weeks after completing treatment

Population: There were no participants who received a kidney from a donor with genotype 1a infection and resistance. Therefore this population is zero.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Donor Genotype 1a no Resistance or 1bViral Response7 Participants
Donor Genotype 1a With ResistanceViral Response0 Participants
Donor Genotype 2 or 3Viral Response3 Participants

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026