NCT02129829

Brief Summary

The West African Treatment Cohort for Hepatitis B (WATCH) study is a component of the European Commission Funded FP7 project PROLIFICA. It aims to evaluate a number of steps required to successfully treat patients with chronic hepatitis B virus infection to prevent cirrhosis and liver cancer. The first step is to determine whether screening for hepatitis B using a point of care test is feasible and effective. The second is to monitor linkage from screening into care. The third is to evaluate cheap non-invasive assessments to determine the need for treatment. The fourth is to determine what proportion of patients meet treatment eligibility criteria. The fifth step is to establish a treatment cohort which can be used to measure adherence to therapy and avoidance of HBV related complications. A parallel untreated cohort will be established to determine whether treatment criteria are relevant in this West African setting by monitoring for complications of HBV infection.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,079

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2011

Longer than P75 for all trials

Geographic Reach
2 countries

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2011

Completed
2.6 years until next milestone

First Submitted

Initial submission to the registry

April 30, 2014

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 2, 2014

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2018

Completed
Last Updated

September 28, 2020

Status Verified

September 1, 2020

Enrollment Period

6.8 years

First QC Date

April 30, 2014

Last Update Submit

September 25, 2020

Conditions

Hepatitis B, ChronicHepatocellular Carcinoma

Keywords

CirrhosisHBVHIVHCV

Outcome Measures

Primary Outcomes (1)

  • Incidence of HCC or decompensated cirrhosis

    Subjects will be reviewed 6 monthly with liver biochemistry and ultrasound to detect onset of hepatocellular carcinoma or decompensated cirrhosis

    5 years

Secondary Outcomes (4)

  • Uptake of screening

    2 years

  • Prevalence of HBV infection

    2 years

  • Rate of linkage into care

    2 years

  • Treatment rate

    2 years

Other Outcomes (2)

  • Reliability of PoC test

    2 years

  • Accuracy of non-invasive fibrosis assessment

    2 years

Study Arms (2)

Observational Group

Patients whose viral load, ALT value and fibrosis status does not meet EASL criteria for treatment and are observed 6 monthly

Treatment Group (Tenofovir disoproxil)

Patients who meet EASL treatment criteria who receive Tenofovir disoproxil

Drug: Tenofovir disoproxil

Interventions

Tenofovir disoproxilDRUG

Tenofovir disoproxil 245 mg once daily

Also known as: Viread
Treatment Group (Tenofovir disoproxil)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

All adults are included for community screening. Selection criteria (below) are applied for recruitment into cohorts

You may qualify if:

  • Adult Informed consent HBsAg positive Resident in Gambia or Senegal

You may not qualify if:

  • HIV infection HCV infection Known liver cancer

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

UFR Sante Thies,

Thiès, Senegal

Location

MRC Laboratories Hospital

Fajara, The Gambia

Location

Related Publications (11)

  • Lemoine M, Shimakawa Y, Njie R, Njai HF, Nayagam S, Khalil M, Goldin R, Ingiliz P, Taal M, Nyan O, Corrah T, D'Alessandro U, Thursz M. Food intake increases liver stiffness measurements and hampers reliable values in patients with chronic hepatitis B and healthy controls: the PROLIFICA experience in The Gambia. Aliment Pharmacol Ther. 2014 Jan;39(2):188-96. doi: 10.1111/apt.12561. Epub 2013 Dec 5.

    PMID: 24308698BACKGROUND

  • Lemoine M, Shimakawa Y, Njie R, Taal M, Ndow G, Chemin I, Ghosh S, Njai HF, Jeng A, Sow A, Toure-Kane C, Mboup S, Suso P, Tamba S, Jatta A, Sarr L, Kambi A, Stanger W, Nayagam S, Howell J, Mpabanzi L, Nyan O, Corrah T, Whittle H, Taylor-Robinson SD, D'Alessandro U, Mendy M, Thursz MR; PROLIFICA investigators. Acceptability and feasibility of a screen-and-treat programme for hepatitis B virus infection in The Gambia: the Prevention of Liver Fibrosis and Cancer in Africa (PROLIFICA) study. Lancet Glob Health. 2016 Aug;4(8):e559-67. doi: 10.1016/S2214-109X(16)30130-9.

    PMID: 27443781BACKGROUND

  • Nayagam S, Conteh L, Sicuri E, Shimakawa Y, Suso P, Tamba S, Njie R, Njai H, Lemoine M, Hallett TB, Thursz M. Cost-effectiveness of community-based screening and treatment for chronic hepatitis B in The Gambia: an economic modelling analysis. Lancet Glob Health. 2016 Aug;4(8):e568-78. doi: 10.1016/S2214-109X(16)30101-2.

    PMID: 27443782BACKGROUND

  • Shimakawa Y, Ndow G, Njie R, Njai HF, Takahashi K, Akbar SMF, Cohen D, Nayagam S, Jeng A, Ceesay A, Sanneh B, Baldeh I, Imaizumi M, Moriyama K, Aoyagi K, D'Alessandro U, Mishiro S, Chemin I, Mendy M, Thursz MR, Lemoine M. Hepatitis B Core-related Antigen: An Alternative to Hepatitis B Virus DNA to Assess Treatment Eligibility in Africa. Clin Infect Dis. 2020 Mar 17;70(7):1442-1452. doi: 10.1093/cid/ciz412.

    PMID: 31102406BACKGROUND

  • Shimakawa Y, Njie R, Ndow G, Vray M, Mbaye PS, Bonnard P, Sombie R, Nana J, Leroy V, Bottero J, Ingiliz P, Post G, Sanneh B, Baldeh I, Suso P, Ceesay A, Jeng A, Njai HF, Nayagam S, D'Alessandro U, Chemin I, Mendy M, Thursz M, Lemoine M. Development of a simple score based on HBeAg and ALT for selecting patients for HBV treatment in Africa. J Hepatol. 2018 Oct;69(4):776-784. doi: 10.1016/j.jhep.2018.05.024. Epub 2018 Jul 1.

    PMID: 30104154BACKGROUND

  • Lemoine M, Shimakawa Y, Nayagam S, Khalil M, Suso P, Lloyd J, Goldin R, Njai HF, Ndow G, Taal M, Cooke G, D'Alessandro U, Vray M, Mbaye PS, Njie R, Mallet V, Thursz M. The gamma-glutamyl transpeptidase to platelet ratio (GPR) predicts significant liver fibrosis and cirrhosis in patients with chronic HBV infection in West Africa. Gut. 2016 Aug;65(8):1369-76. doi: 10.1136/gutjnl-2015-309260. Epub 2015 Jun 24.

    PMID: 26109530BACKGROUND

  • Shimakawa Y, Lemoine M, Bottomley C, Njai HF, Ndow G, Jatta A, Tamba S, Bojang L, Taal M, Nyan O, D'Alessandro U, Njie R, Thursz M, Hall AJ. Birth order and risk of hepatocellular carcinoma in chronic carriers of hepatitis B virus: a case-control study in The Gambia. Liver Int. 2015 Oct;35(10):2318-26. doi: 10.1111/liv.12814. Epub 2015 Mar 11.

    PMID: 25728498BACKGROUND

  • Njai HF, Shimakawa Y, Sanneh B, Ferguson L, Ndow G, Mendy M, Sow A, Lo G, Toure-Kane C, Tanaka J, Taal M, D'alessandro U, Njie R, Thursz M, Lemoine M. Validation of rapid point-of-care (POC) tests for detection of hepatitis B surface antigen in field and laboratory settings in the Gambia, Western Africa. J Clin Microbiol. 2015 Apr;53(4):1156-63. doi: 10.1128/JCM.02980-14. Epub 2015 Jan 28.

    PMID: 25631805BACKGROUND

  • Shimakawa Y, Lemoine M, Njai HF, Bottomley C, Ndow G, Goldin RD, Jatta A, Jeng-Barry A, Wegmuller R, Moore SE, Baldeh I, Taal M, D'Alessandro U, Whittle H, Njie R, Thursz M, Mendy M. Natural history of chronic HBV infection in West Africa: a longitudinal population-based study from The Gambia. Gut. 2016 Dec;65(12):2007-2016. doi: 10.1136/gutjnl-2015-309892. Epub 2015 Jul 16.

    PMID: 26185161BACKGROUND

  • Shimakawa Y, Lemoine M, Mendy M, Njai HF, D'Alessandro U, Hall A, Thursz M, Njie R. Population-based interventions to reduce the public health burden related with hepatitis B virus infection in the gambia, west Africa. Trop Med Health. 2014 Jun;42(2 Suppl):59-64. doi: 10.2149/tmh.2014-S08.

    PMID: 25425952BACKGROUND

  • Shimakawa Y, Takao Y, Anderson ST, Taal M, Yamaguchi T, Giana L, Ndow G, Sarr L, Kambi A, Njai HF, Bottomley C, Nyan O, Sabally S, D'Alessandro U, Taylor-Robinson SD, Thursz M, Lemoine M, Njie R. The prevalence and burden of symptoms in patients with chronic liver diseases in The Gambia, West Africa. Palliat Med. 2015 Feb;29(2):184-5. doi: 10.1177/0269216314547103. Epub 2014 Sep 5. No abstract available.

    PMID: 25193933DERIVED

Biospecimen

Retention: SAMPLES WITH DNA

Serum, plasma, urine and DNA

MeSH Terms

Conditions

Hepatitis B, ChronicCarcinoma, HepatocellularFibrosis

Interventions

Tenofovir

Condition Hierarchy (Ancestors)

Hepatitis BBlood-Borne InfectionsCommunicable DiseasesInfectionsHepadnaviridae InfectionsDNA Virus InfectionsVirus DiseasesHepatitis, Viral, HumanHepatitis, ChronicHepatitisLiver DiseasesDigestive System DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsAdenocarcinomaCarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasmsLiver NeoplasmsDigestive System NeoplasmsNeoplasms by Site

Intervention Hierarchy (Ancestors)

OrganophosphonatesOrganophosphorus CompoundsOrganic ChemicalsAdeninePurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Officials

  • Mark Thursz, MD FRCP

    Imperial College London

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 30, 2014

First Posted

May 2, 2014

Study Start

October 1, 2011

Primary Completion

July 31, 2018

Study Completion

July 31, 2018

Last Updated

September 28, 2020

Record last verified: 2020-09

Data Sharing

IPD Sharing
Will not share

Locations

TH(1)SE(1)