Chronic Hepatitis CPhase 4NCT03098121

Efficacy and Tolerability of Grazoprevir and Elbasvir in Patients With Chronic Genotype 1 HCV and HIV Co-infection

A Phase 4 study testing grazoprevir and elbasvir in people with Chronic Hepatitis C, run by Taoyuan General Hospital at 1 site in Taiwan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record

Search all trials

Trial summary

This clinical study will evaluate whether grazoprevir and elbasvir is efficacious, safe, and well-tolerated in peginterferon alfa plus ribavirin experienced patients who inject drugs (PWID) and men who sex with men (MSM) with genotype 1 HCV and HIV co-infection. Read more about this study

Who is it for?: Ages 20 to 80 years
Conditions the study is for: Chronic Hepatitis C
What is being tested?: grazoprevir and elbasvir
Type of treatment: Pill or oral medicine
Could I receive a placebo?: No, everyone receives an active treatment
How many people: 40 participants
Where: 1 siteTaiwan
Study dates: 20 Oct 2017to 30 Nov 2018
Phase: Phase 4
Are there results?: None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

Ages 20 to 80 years
All sexes
No healthy volunteers
Adult, Older adult

Who may be able to join

Men and non-pregnant women, at least 20 years of age with chronic genotype 1 HCV and HIV co-infection.
HCV RNA > 10,000 IU/mL
Stable antiretroviral therapy (ARV) with confirmed plasma HIV-1 RNA < 200 copies/mL
CD4 T-cell count > 100 cells/L
peginterferon alfa plus ribavirin failure: null response <1 log10 IU/mL reduction in HCV RNA at week 4; detectable HCV RNA since week 12 to the end of treatment; detectable HCV RNA for 12 to 24 weeks after the end of treatment; or discontinuation of peginterferon alfa plus ribavirin due to grade 3 or grade 4 adverse effects at any moment.

Who cannot join

Decompensated liver disease (presence or history of ascites, oesophageal or gastric variceal bleeding, hepatic encephalopathy, or other signs of advanced liver diseases)
Liver cirrhosis with Child-Pugh class B or C, or with a Child-Turcotte-Pugh score of more than 6 points and albumin below 3 g/dL or platelet count below 75,000/ μL
History of malignant disease, or evidence of hepatocellular carcinoma
ARV with protease inhibitor containing regimen HBsAg and HBV core antibody should be checked in all patients. HBsAg positive patients should be excluded from the study. HBV core antibody positive patients should be closely monitored for hepatitis flare or HBV reactivation during HCV treatment and post-treatment follow-up. Appropriate patient management should be instituted for HBV infection as clinically indicated.

Trial locations and contacts

1 site in 1 country.

Taiwan1 site

Taoyuan general hospital
Taoyuan, 33004

Other trials in Taiwan

About this study

Official title: Efficacy and Tolerability of Grazoprevir and Elbasvir in Peginterferon Alfa Plus Ribavirin Experienced Patients With Chronic Genotype 1 HCV and HIV Co-infection: a Non-randomised, Open-label Clinical Trial

Read the detailed description

Primary Objective •To assess the efficacy of grazoprevir 100mg and elbasvir 50mg by determining the proportion of sustained virological response 12 weeks after the end of therapy (SVR12; HCV RNA concentration less than 10 IU/ mL at follow-up week 12) in peginterferon alfa plus ribavirin experienced patients with genotype 1 HCV and HIV co-infection, compared with treatment-naïve patients with 1 HCV and HIV co-infection.

Secondary Objective

•To assess the tolerability of grazoprevir 100mg and elbasvir 50mg in peginterferon alfa plus ribavirin experienced patients by measuring frequency of SAEs and AEs leading to discontinuation.

Conditions: Chronic Hepatitis C
Being tested: grazoprevir and elbasvir
Medical subject headings: Hepatitis C, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

grazoprevir and elbasvirDrug
For patients with chronic genotype 1a, with or without resistance associated variant (RAV) of NS5A, are expected to receive grazoprevir and elbasvir in a fixed-dose combination tablet once daily with ribavirin for 16 weeks, and for patients with chronic genotype 1b are expected to receive grazoprevir and elbasvir in a fixed-dose combination tablet once daily for 12 weeks.

Study groups in NCT03098121
Study group	Role	What they receive
Genotype 1 HCV and HIV co-infection	Experimental	Patients with chronic Genotype 1 HCV and HIV co-infection, with or without resistance-associated substitution (RAS) of NS5A, received grazoprevir and elbasvir in a fixed-dose combination tablet once daily with ribavirin for 16 weeks, and patients with chronic genotype 1b received grazoprevir and elbasvir once daily for 12 weeks. Receives: Drug: grazoprevir and elbasvir

What is being measured

The primary outcome is the main question the study is designed to answer.

Sustained virological response
The proportion of sustained virological response 12 weeks after the end of therapy after the treatment of grazoprevir and elbasvir
Measured: 12 weeks after the end of therapy

Secondary outcomes (1)

Severe adverse effects
The frequency of severe adverse effects leading to discontinuation
Measured: during the treatment of grazoprevir and elbasvir

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

20 Oct 201730 Nov 2018

First posted31 Mar 2017
Study start20 Oct 2017
Primary completion30 Nov 2018
Study completion30 Nov 2018

Resources

Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
Publications (10)Papers the sponsor has linked to this study.
Other trials for Chronic Hepatitis CStudies of the same condition, open and under way.
What the trial phases meanHow a treatment moves from first tests in people to approval.

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design

Study type: Interventional
Phase: Phase 4
Primary purpose: Treatment
Allocation: Not applicable
Intervention model: Single group
Masking: None (open label)
Enrolment: 40 participants (actual)

IDs, dates and publications

ClinicalTrials.gov ID: NCT03098121
Sponsor's protocol ID: TYGH105034
Status last verified: Dec 2018
First submitted: 27 Mar 2017
Last updated: 20 Dec 2018
Results posted: No
Data monitoring committee: No
FDA-regulated drug: Yes
FDA-regulated device: No
Individual data sharing: Yes: The study will be conducted at 3 different hospitals, and the investigators will share the data with other researchers every 3 months

Publications

Laguno M, Cifuentes C, Murillas J, Veloso S, Larrousse M, Payeras A, Bonet L, Vidal F, Milinkovic A, Bassa A, Villalonga C, Perez I, Tural C, Martinez-Rebollar M, Calvo M, Blanco JL, Martinez E, Sanchez-Tapias JM, Gatell JM, Mallolas J. Randomized trial comparing pegylated interferon alpha-2b versus pegylated interferon alpha-2a, both plus ribavirin, to treat chronic hepatitis C in human immunodeficiency virus patients. Hepatology. 2009 Jan;49(1):22-31. doi: 10.1002/hep.22598.
PubMed 19085908
Chung RT, Andersen J, Volberding P, Robbins GK, Liu T, Sherman KE, Peters MG, Koziel MJ, Bhan AK, Alston B, Colquhoun D, Nevin T, Harb G, van der Horst C; AIDS Clinical Trials Group A5071 Study Team. Peginterferon Alfa-2a plus ribavirin versus interferon alfa-2a plus ribavirin for chronic hepatitis C in HIV-coinfected persons. N Engl J Med. 2004 Jul 29;351(5):451-9. doi: 10.1056/NEJMoa032653.
PubMed 15282352
Torriani FJ, Rodriguez-Torres M, Rockstroh JK, Lissen E, Gonzalez-Garcia J, Lazzarin A, Carosi G, Sasadeusz J, Katlama C, Montaner J, Sette H Jr, Passe S, De Pamphilis J, Duff F, Schrenk UM, Dieterich DT; APRICOT Study Group. Peginterferon Alfa-2a plus ribavirin for chronic hepatitis C virus infection in HIV-infected patients. N Engl J Med. 2004 Jul 29;351(5):438-50. doi: 10.1056/NEJMoa040842.
PubMed 15282351
Liu JY, Lin HH, Liu YC, Lee SS, Chen YL, Hung CC, Ko WC, Huang CK, Lai CH, Chen YS, Shih YL, Chung HC, Liang SH, Lin JN. Extremely high prevalence and genetic diversity of hepatitis C virus infection among HIV-infected injection drug users in Taiwan. Clin Infect Dis. 2008 Jun 1;46(11):1761-8. doi: 10.1086/587992.
PubMed 18433337
Liu CH, Sheng WH, Sun HY, Hsieh SM, Lo YC, Liu CJ, Su TH, Yang HC, Liu WC, Chen PJ, Chen DS, Hung CC, Kao JH. Peginterferon plus Ribavirin for HIV-infected Patients with Treatment-Naive Acute or Chronic HCV Infection in Taiwan: A Prospective Cohort Study. Sci Rep. 2015 Nov 30;5:17410. doi: 10.1038/srep17410.
PubMed 26616669
Naggie S, Cooper C, Saag M, Workowski K, Ruane P, Towner WJ, Marks K, Luetkemeyer A, Baden RP, Sax PE, Gane E, Santana-Bagur J, Stamm LM, Yang JC, German P, Dvory-Sobol H, Ni L, Pang PS, McHutchison JG, Stedman CA, Morales-Ramirez JO, Brau N, Jayaweera D, Colson AE, Tebas P, Wong DK, Dieterich D, Sulkowski M; ION-4 Investigators. Ledipasvir and Sofosbuvir for HCV in Patients Coinfected with HIV-1. N Engl J Med. 2015 Aug 20;373(8):705-13. doi: 10.1056/NEJMoa1501315. Epub 2015 Jul 21.
PubMed 26196665
Wyles DL, Ruane PJ, Sulkowski MS, Dieterich D, Luetkemeyer A, Morgan TR, Sherman KE, Dretler R, Fishbein D, Gathe JC Jr, Henn S, Hinestrosa F, Huynh C, McDonald C, Mills A, Overton ET, Ramgopal M, Rashbaum B, Ray G, Scarsella A, Yozviak J, McPhee F, Liu Z, Hughes E, Yin PD, Noviello S, Ackerman P; ALLY-2 Investigators. Daclatasvir plus Sofosbuvir for HCV in Patients Coinfected with HIV-1. N Engl J Med. 2015 Aug 20;373(8):714-25. doi: 10.1056/NEJMoa1503153. Epub 2015 Jul 21.
PubMed 26196502
Rockstroh JK, Nelson M, Katlama C, Lalezari J, Mallolas J, Bloch M, Matthews GV, Saag MS, Zamor PJ, Orkin C, Gress J, Klopfer S, Shaughnessy M, Wahl J, Nguyen BY, Barr E, Platt HL, Robertson MN, Sulkowski M. Efficacy and safety of grazoprevir (MK-5172) and elbasvir (MK-8742) in patients with hepatitis C virus and HIV co-infection (C-EDGE CO-INFECTION): a non-randomised, open-label trial. Lancet HIV. 2015 Aug;2(8):e319-27. doi: 10.1016/S2352-3018(15)00114-9. Epub 2015 Jul 9.
PubMed 26423374
Bunchorntavakul C, Chavalitdhamrong D, Tanwandee T. Hepatitis C genotype 6: A concise review and response-guided therapy proposal. World J Hepatol. 2013 Sep 27;5(9):496-504. doi: 10.4254/wjh.v5.i9.496.
PubMed 24073301
Lin YC, Li SW, Ku SY, Hsieh HT, Lin MH, Chang SY, Wu WW, Sun NL, Cheng SH, Cheng CY. Grazoprevir/elbasvir in peginterferon alfa plus ribavirin experienced patients with chronic genotype 1 HCV/HIV co-infection: a non-randomized, open-label clinical trial. Infect Drug Resist. 2019 Apr 18;12:937-945. doi: 10.2147/IDR.S206938. eCollection 2019.
PubMed 31114268

Want to know more?

The sponsor has not listed a contact. The official record may have more details.

Talk to your doctor first and take this page with you. Only the study team can confirm whether you can join.

Questions to ask the study team

What is the study trying to find out?
What would I need to do, and how often would I visit?
Could I receive a placebo instead of the treatment?
What are the possible risks and benefits for me?
Will it cost me anything? Are travel or time paid for?
Can I keep seeing my own doctor during the study?
What happens when the study ends?

See locations

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All Chronic Hepatitis C trials

Study at a glance

From the registry record, last updated by the sponsor on 20 Dec 2018. Recruitment status is as the sponsor reported it: confirm with the study team.

Official title: Efficacy and Tolerability of Grazoprevir and Elbasvir in Peginterferon Alfa Plus Ribavirin Experienced Patients With Chronic Genotype 1 HCV and HIV Co-infection: a Non-randomised, Open-label Clinical Trial
ClinicalTrials.gov ID: NCT03098121
Acronym / sponsor ID: TYGH105034
Conditions: Chronic Hepatitis C
Phase: Phase 4
Study type: Interventional
Recruitment status: Completed
Enrolment: 40 participants (actual)
Lead sponsor: Taoyuan General HospitalOther government
Collaborators: Merck Sharp & Dohme LLC
Study start: 20 Oct 2017 (actual)
Primary completion: 30 Nov 2018 (actual)
Study completion: 30 Nov 2018 (actual)
First posted: 31 Mar 2017 (actual)
Results: Not posted in the source record

Clinical summary

The research question as the sponsor registered it. This describes what the study plans to test, not what it found.

Detailed description

Secondary Objective

•To assess the tolerability of grazoprevir 100mg and elbasvir 50mg in peginterferon alfa plus ribavirin experienced patients by measuring frequency of SAEs and AEs leading to discontinuation.

Study design

Primary purpose: Treatment
Allocation: Not applicable
Intervention model: Single group
Masking: None (open label)
Number of arms: 1

Arm	Type	Receives
Genotype 1 HCV and HIV co-infection	Experimental	Drug: grazoprevir and elbasvirPatients with chronic Genotype 1 HCV and HIV co-infection, with or without resistance-associated substitution (RAS) of NS5A, received grazoprevir and elbasvir in a fixed-dose combination tablet once daily with ribavirin for 16 weeks, and patients with chronic genotype 1b received grazoprevir and elbasvir once daily for 12 weeks.

Who may qualify

Ages: 20 to 80 years
Sex: All
Healthy volunteers: Not accepted
Age groups: Adult, Older adult

Key inclusion criteria (5 listed)

Men and non-pregnant women, at least 20 years of age with chronic genotype 1 HCV and HIV co-infection.
HCV RNA > 10,000 IU/mL
Stable antiretroviral therapy (ARV) with confirmed plasma HIV-1 RNA < 200 copies/mL
CD4 T-cell count > 100 cells/L
peginterferon alfa plus ribavirin failure: null response <1 log10 IU/mL reduction in HCV RNA at week 4; detectable HCV RNA since week 12 to the end of treatment; detectable HCV RNA for 12 to 24 weeks after the end of treatment; or discontinuation of peginterferon alfa plus ribavirin due to grade 3 or grade 4 adverse effects at any moment.

Key exclusion criteria (4 listed)

Decompensated liver disease (presence or history of ascites, oesophageal or gastric variceal bleeding, hepatic encephalopathy, or other signs of advanced liver diseases)
Liver cirrhosis with Child-Pugh class B or C, or with a Child-Turcotte-Pugh score of more than 6 points and albumin below 3 g/dL or platelet count below 75,000/ μL
History of malignant disease, or evidence of hepatocellular carcinoma
ARV with protease inhibitor containing regimen HBsAg and HBV core antibody should be checked in all patients. HBsAg positive patients should be excluded from the study. HBV core antibody positive patients should be closely monitored for hepatitis flare or HBV reactivation during HCV treatment and post-treatment follow-up. Appropriate patient management should be instituted for HBV infection as clinically indicated.

Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.

Interventions

Intervention	Type	Arms
grazoprevir and elbasvirFor patients with chronic genotype 1a, with or without resistance associated variant (RAV) of NS5A, are expected to receive grazoprevir and elbasvir in a fixed-dose combination tablet once daily with ribavirin for 16 weeks, and for patients with chronic genotype 1b are expected to receive grazoprevir and elbasvir in a fixed-dose combination tablet once daily for 12 weeks.	Drug	Genotype 1 HCV and HIV co-infection

Primary outcome

Sustained virological response
Time frame: 12 weeks after the end of therapy
The proportion of sustained virological response 12 weeks after the end of therapy after the treatment of grazoprevir and elbasvir

1 secondary outcome

Severe adverse effects
Time frame: during the treatment of grazoprevir and elbasvir

Results and safety

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

Research links

Official record on ClinicalTrials.govLast updated by the sponsor 20 Dec 2018.
Background: PubMed 19085908Laguno M, Cifuentes C, Murillas J, Veloso S, Larrousse M, Payeras A, Bonet L, Vidal F, Milinkovic A, Bassa A, Villalonga C, Perez I, Tural C, Martinez-Rebollar M, Calvo M, Blanco JL, Martinez E, Sanchez-Tapias JM, Gatell JM, Mallolas J. Randomized trial comparing pegylated interferon alpha-2b versus pegylated interferon alpha-2a, both plus ribavirin, to treat chronic hepatitis C in human immunodeficiency virus patients. Hepatology. 2009 Jan;49(1):22-31. doi: 10.1002/hep.22598.
Background: PubMed 15282352Chung RT, Andersen J, Volberding P, Robbins GK, Liu T, Sherman KE, Peters MG, Koziel MJ, Bhan AK, Alston B, Colquhoun D, Nevin T, Harb G, van der Horst C; AIDS Clinical Trials Group A5071 Study Team. Peginterferon Alfa-2a plus ribavirin versus interferon alfa-2a plus ribavirin for chronic hepatitis C in HIV-coinfected persons. N Engl J Med. 2004 Jul 29;351(5):451-9. doi: 10.1056/NEJMoa032653.
Background: PubMed 15282351Torriani FJ, Rodriguez-Torres M, Rockstroh JK, Lissen E, Gonzalez-Garcia J, Lazzarin A, Carosi G, Sasadeusz J, Katlama C, Montaner J, Sette H Jr, Passe S, De Pamphilis J, Duff F, Schrenk UM, Dieterich DT; APRICOT Study Group. Peginterferon Alfa-2a plus ribavirin for chronic hepatitis C virus infection in HIV-infected patients. N Engl J Med. 2004 Jul 29;351(5):438-50. doi: 10.1056/NEJMoa040842.
Background: PubMed 18433337Liu JY, Lin HH, Liu YC, Lee SS, Chen YL, Hung CC, Ko WC, Huang CK, Lai CH, Chen YS, Shih YL, Chung HC, Liang SH, Lin JN. Extremely high prevalence and genetic diversity of hepatitis C virus infection among HIV-infected injection drug users in Taiwan. Clin Infect Dis. 2008 Jun 1;46(11):1761-8. doi: 10.1086/587992.
Background: PubMed 26616669Liu CH, Sheng WH, Sun HY, Hsieh SM, Lo YC, Liu CJ, Su TH, Yang HC, Liu WC, Chen PJ, Chen DS, Hung CC, Kao JH. Peginterferon plus Ribavirin for HIV-infected Patients with Treatment-Naive Acute or Chronic HCV Infection in Taiwan: A Prospective Cohort Study. Sci Rep. 2015 Nov 30;5:17410. doi: 10.1038/srep17410.
Background: PubMed 26196665Naggie S, Cooper C, Saag M, Workowski K, Ruane P, Towner WJ, Marks K, Luetkemeyer A, Baden RP, Sax PE, Gane E, Santana-Bagur J, Stamm LM, Yang JC, German P, Dvory-Sobol H, Ni L, Pang PS, McHutchison JG, Stedman CA, Morales-Ramirez JO, Brau N, Jayaweera D, Colson AE, Tebas P, Wong DK, Dieterich D, Sulkowski M; ION-4 Investigators. Ledipasvir and Sofosbuvir for HCV in Patients Coinfected with HIV-1. N Engl J Med. 2015 Aug 20;373(8):705-13. doi: 10.1056/NEJMoa1501315. Epub 2015 Jul 21.
Background: PubMed 26196502Wyles DL, Ruane PJ, Sulkowski MS, Dieterich D, Luetkemeyer A, Morgan TR, Sherman KE, Dretler R, Fishbein D, Gathe JC Jr, Henn S, Hinestrosa F, Huynh C, McDonald C, Mills A, Overton ET, Ramgopal M, Rashbaum B, Ray G, Scarsella A, Yozviak J, McPhee F, Liu Z, Hughes E, Yin PD, Noviello S, Ackerman P; ALLY-2 Investigators. Daclatasvir plus Sofosbuvir for HCV in Patients Coinfected with HIV-1. N Engl J Med. 2015 Aug 20;373(8):714-25. doi: 10.1056/NEJMoa1503153. Epub 2015 Jul 21.
Background: PubMed 26423374Rockstroh JK, Nelson M, Katlama C, Lalezari J, Mallolas J, Bloch M, Matthews GV, Saag MS, Zamor PJ, Orkin C, Gress J, Klopfer S, Shaughnessy M, Wahl J, Nguyen BY, Barr E, Platt HL, Robertson MN, Sulkowski M. Efficacy and safety of grazoprevir (MK-5172) and elbasvir (MK-8742) in patients with hepatitis C virus and HIV co-infection (C-EDGE CO-INFECTION): a non-randomised, open-label trial. Lancet HIV. 2015 Aug;2(8):e319-27. doi: 10.1016/S2352-3018(15)00114-9. Epub 2015 Jul 9.
Results publication: PubMed 24073301Bunchorntavakul C, Chavalitdhamrong D, Tanwandee T. Hepatitis C genotype 6: A concise review and response-guided therapy proposal. World J Hepatol. 2013 Sep 27;5(9):496-504. doi: 10.4254/wjh.v5.i9.496.
Derived from this study: PubMed 31114268Lin YC, Li SW, Ku SY, Hsieh HT, Lin MH, Chang SY, Wu WW, Sun NL, Cheng SH, Cheng CY. Grazoprevir/elbasvir in peginterferon alfa plus ribavirin experienced patients with chronic genotype 1 HCV/HIV co-infection: a non-randomized, open-label clinical trial. Infect Drug Resist. 2019 Apr 18;12:937-945. doi: 10.2147/IDR.S206938. eCollection 2019.
Individual participant dataSharing planned: Yes. The study will be conducted at 3 different hospitals, and the investigators will share the data with other researchers every 3 months

Related trials for Chronic Hepatitis C

RecruitingObservational study
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Referral and contact

AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.

Chien-Yu Cheng principal investigator

Taoyuan General Hospital

1 site in 1 country: see every site and its status.

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing grazoprevir and elbasvir in people with Chronic Hepatitis C, run by Taoyuan General Hospital at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Dec 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Sustained virological response (time frame: 12 weeks after the end of therapy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03098121, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Dec 2018.