Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT02214875 |
Other study ID # |
C6-TSA-037 |
Secondary ID |
|
Status |
Completed |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
July 14, 2014 |
Est. completion date |
June 30, 2017 |
Study information
Verified date |
February 2021 |
Source |
Centre for Integrated Health Programs, Nigeria |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
This study aims to address the research question: Will continuous quality improvement, using
a Break Through Series approach, increase uptake of PMTCT services and retention-in-care of
HIV-infected pregnant women and mothers at six and 12 months postpartum?
Continuous Quality Improvement (CQI) is a health systems intervention to assist programs to
systematically improve services and health outcomes. The Break Through Series (BTS) is a
specific CQI approach is a short-term (6- to 15-month) learning system that brings together
teams from several hospitals or clinics ("collaboratives") to seek improvement in a focused
topic area through a common process of data sharing and review Primary Objective To assess
whether retention-in-care of HIV-infected women at six (6) months postpartum is higher at
health facilities implementing CQI-BTS approaches than at health facilities not implementing
CQI-BTS approaches.
Secondary Objectives
To assess whether implementation of CQI-BTS initiatives at health facilities increases:
1. Uptake of PMTCT services by HIV-infected pregnant women;
2. Retention-in-care of HIV-infected women at twelve (12) months postpartum;
3. Retention-in-care of HIV-exposed babies at six (6) and twelve (12) months of age;
4. Uptake of a pre-defined, minimum set of integrated RH/PMTCT services by HIV-infected
women in health facilities.
Description:
Methods/ Study design/ Population/ Interventions Study Design: A cluster randomized
controlled trial in which 32 public primary and secondary health care facilities are
randomized into 16 intervention and 16 control sites. The control sites will receive routine
CIHP support, while the intervention sites will receive structured CQI-BTS interventions.
Study sites Based on pre-set site selection criteria, 32 sites were selected from a total of
241 eligible sites supported by the Centre for Integrated Healthcare Programs (CIHP), to
provide comprehensive HIV care and treatment programs. These sites are at higher levels of
standardized care compared to Government of Nigeria sites where there is minimal
standardization of care. The following criteria were used to select health facilities for the
study;
- Facility supports ANC/PMTCT services and has capacity to provide ART until 12-18 months
post-partum
- Onsite delivery of HIV+ women by the facility
- Provision of postpartum care follow-up for HIV+ women
- ANC attendance with at least 2 HIV+ women per month for general hospitals and at least 1
per month for primary health care (PHCs)
- Availability of, at least, two trained community health extension workers
- Facilities providing PMTCT services for more than six months prior to onset of study
Study Participants:
Participants are HIV-infected pregnant women presenting at study sites for 1st booking at
antenatal clinics with gestational age of 34 weeks or less, ART naive, accept ARV and agree
to remain in care for at least six months post-partum.
Control and Intervention arms:
Individual pregnant women and mothers attending facilities in the control and intervention
arms receive the same routine care that includes a "test and treat" protocol i.e. same day
HIV testing and initiation of triple ARVs (option B) of HIV+ pregnant women. Clients eligible
for lifelong ART based on CD4 count, and/or WHO staging, continue ARVs indefinitely for their
own health, while those not eligible continue ARV prophylaxis according to the National
guidelines. For the purpose of this study, antenatal clients are seen for their ARV drug
refills until delivery according to the National ANC schedule of appointments. Postpartum,
visits follow the immunization schedule i.e. 6 weeks, 10 weeks, and 14 weeks and thereafter 2
monthly until 12 months. Facilities in the control arm continue to receive routine health
system support from CIHP
Intervention package:
CQI interventions employ rapid cycles of data collection, testing of solutions and review of
changes will be implemented. At each site a Quality Improvement Team (QIT) will be
established from among the local staff. Local Government and State level QI teams will also
be set up to provide oversight function of the health facilities' QI initiatives. The BTS is
a collaborative learning approach conducted quarterly in each study state at a central
location with participants from the intervention sites. The sessions provide opportunity for
teams to learn from each other and to adapt and implement changes using the Plan-Do-Study-Act
(PDSA) model. Driver diagrams will be developed to understand the primary and secondary
drivers for low retention of HIV positive mothers and formulate action plans and indicator
sets to address these. Between the collaborative sessions, specific designated improvement
coaches will follow up site teams at regular intervals via physical site visits and telephone
calls to guide implementation of change ideas. Different site teams will also be encouraged
to communicate with each other through telephone calls and cross-site visits to strengthen
learning and exchange of ideas.
Sample size estimation:
Sample size was calculated using the windows programme for epidemiologists. The CQI-BTS
approach tested within the study would be deemed worthwhile if there is a 20% absolute
increase in retention of mothers at 6 months (e.g. expected retention rate in the control
arm: 40%; expected retention rate in the control arm: 60%). First, the minimum sample size
needed under individual randomization was calculated to detect the desirable difference of
proportions with a level of significance set at 95% (two-sided) and at 80% power. We found
that 94 mother-infant pairs would be needed in each arm under individual randomization.
Second, bearing in mind that this trial will randomize the intervention package under several
clusters, the sample size from a non-cluster randomized trial was inflated by an Inflation
Factor (IF). The IF is calculated as follows: IF = 1 + (m - 1) ro, where m is the size of
each cluster, and ro the internal variability which represents how strongly individuals
within clusters are related to each other. In our case, it is difficult to estimate a priori
this internal variability due to lack of primary data: it is possible that the standardized
structure of the intervention tested within the trial will lead to a relatively low cluster
internal variability; alternatively, because the intervention package depends on the
individual capacity/will of health-care personnel, this may increase the internal variability
across clusters. Hence, we believe it is reasonable to assume a ro value of 0.10, as
recommended by most authors. We set the size of cluster at 20, which gave an inflation factor
of 2.9. Additionally, since this research is being carried out in an operational context, we
allowed for up to 20% of routine data to be incomplete or maternal mortality in pregnancy and
therefore data on retention in care not available for analysis. As a conclusion, a total of
327 mother-infant pairs are needed in each arm. There will be 16 clusters in each arm with a
minimum number of 20 HIV-infected pregnant women per site. A total of 640 pregnant
HIV-infected women will be recruited.
Data management plan:
Primary outcome data is sourced from the local health registers -Data collection and entry
occur weekly in both study arms by research assistants. A monthly review of these data is
conducted by the LJM study team. In addition, process measures are routinely collected to
assess the integrity of implementation of the CQI-BTS intervention.
Primary Outcome: Proportion of HIV+ pregnant women in care 6 months postpartum Source
Document: PMTCT ARV register
Secondary Outcome 1: Proportion of HIV+ pregnant women initiating ARV prophylaxis or
treatment within 2 weeks of enrolment Source Document: PMTCT HCT register, PMTCT ARV register
and Mother Child Care Form
Secondary Outcome 2: Proportion of HIV+ pregnant women care 12 months postpartum Source
Document: PMTCT ARV register, Mother and Child Care Form
Secondary Outcome 3: Proportion of HIV exposed infants with Dry Blood Spot (DBS) samples
taken at 8 weeks of life Source Document: Child follow up register and Mother Child Care Form
Analysis plan:
Descriptive analyses will be conducted to outline participants' and clusters' baseline
characteristics and outcomes by study arms using frequency tabulations and summary
statistics. Bi-variate analysis will be done to identify potential prognostic factors
confounding the distribution of baseline characteristics among the arms that require
adjustment.