This study is a 3-phase, parallel-group RCT with individual-level allocation. It is being conducted between 2025 and 2026 in the medical-surgical wards of the Acharya Vinoba Bhave Rural Hospital, Wardha, Maharashtra, India. Phases 1 and 2 focused on the development and validation of the CCCM and have been completed. This protocol describes phase 3, which evaluates the effectiveness of the CCCM through a randomized comparison.

The trial is being conducted in 6 independent medical-surgical wards of the Acharya Vinoba Bhave Rural Hospital, a tertiary care teaching hospital serving a culturally and socioeconomically diverse population from rural and semiurban regions of Maharashtra. Each ward is staffed by 2 to 3 registered nurses per shift, which supports individual randomization while reducing the risk of contamination between study groups.

A total of 110 registered nurses are being recruited. Eligible participants are nurses currently working in medical-surgical wards with at least 1 year of clinical experience. Written informed consent is obtained prior to participation. Nurses who have previously completed formal training in cultural competence are excluded to minimize bias related to prior exposure.

The sample size is calculated based on the primary outcome of cultural competence measured using the CCAT-N. Pilot data indicated a large effect size (Cohen d≈0.8). Assuming a 2-tailed significance level of .05 and a statistical power of 90%, a minimum of 34 participants per group is required. After accounting for a potential attrition rate of 20%, the final sample size is set at 55 participants per group, resulting in a total of 110 nurses.

Participants are randomly assigned in a 1:1 ratio to the intervention or control group using a block randomization approach with stratification by ward seniority (junior vs senior nurses). Allocation concealment is ensured using sequentially numbered, opaque, sealed envelopes prepared independently before enrollment. Blinding of participants is not feasible due to the nature of the educational intervention. However, outcome assessors and data analysts remain blinded to group allocation. To reduce contamination, training sessions are conducted during off-duty hours, intervention materials are restricted to the intervention group, and patient allocation is organized after completion of training. The control group is offered access to the CCCM after study completion.

The CCCM is a structured educational intervention designed to improve cultural competence among nurses. It is delivered as five 1-hour sessions over 5 consecutive days, followed by booster sessions on days 15, 35, and 45. The module includes components on cultural self-awareness (guided by the ASKED [awareness, skills, knowledge, encounter, desire] framework), cross-language communication, religious and end-of-life care, and sociocultural considerations in the Indian context. It also incorporates elements of leadership and advocacy in culturally responsive practice. The components of the CCCM were systematically mapped to established cultural competence frameworks to ensure theoretical grounding and comprehensiveness, as shown in Table 1.

A blended learning approach is used, combining didactic teaching with experiential methods such as simulation, role-play, and case-based discussions. Participants are required to attend at least 80% of sessions to be considered compliant. The control group continues routine nursing care without exposure to the CCCM during the study period.

The primary outcome is cultural competence, measured using the CCAT-N, a validated instrument that provides a total score reflecting overall cultural competence. Secondary outcomes include domain-specific subscale scores of cultural competence, patient satisfaction, and retention of cultural competence at 90 days following the intervention. Higher scores on these measures indicate improved outcomes.

Data are collected at 3 time points: baseline (before the randomization), immediately after completion of the intervention, and at 90 days after the intervention to assess retention. The schedule of enrollment, intervention, and outcome assessments is presented in Table 2.

Cultural competence is assessed using the CCAT-N, while patient satisfaction is measured using a culturally competent nursing care satisfaction survey. Standardized data collection procedures are followed across all time points to ensure consistency and reduce measurement bias.

Data analysis is conducted to compare outcomes between the intervention and control groups. Descriptive statistics are used to summarize baseline characteristics and outcome variables. Baseline comparability between groups is assessed prior to outcome analysis. For the primary outcome, postintervention CCAT-N scores are compared between groups using a 2-tailed independent samples t test. Where baseline differences are present, analysis of covariance is applied to adjust for baseline values. Changes in outcomes over time are analyzed using repeated measures analysis of variance or mixed-effects modeling to account for within-participants variability. Both intention-to-treat and per-protocol analyses are performed to ensure robustness of findings. Missing data are addressed using multiple imputation methods. For patient satisfaction outcomes, either parametric or nonparametric statistical tests are applied depending on data distribution. Subgroup analyses are conducted to explore potential effect modification based on ward seniority. A 2-tailed P value of <.05 is considered statistically significant.

All data are stored in secure, encrypted institutional databases. Double-entry verification is used to ensure accuracy. Data quality is monitored regularly, and an audit trail is maintained throughout the study.

Ethics approval was obtained from the Datta Meghe Institute of Higher Education & Research Institutional Ethics Committee (DMIHER-DU/IEC/2024/52; December 20, 2024). The trial is registered with the Clinical Trial Registry of India (CTRI/2025/06/088982; May 17, 2025). The study involves minimal risk, as it is an educational intervention. Written informed consent will be obtained from all participants prior to enrollment. Participants will be informed of their right to withdraw at any time without penalty. No formal data monitoring committee has been constituted due to the low-risk nature of the study. The study adheres to the Declaration of Helsinki principles, protecting participants’ rights, privacy, and confidentiality.

The study adopts a sequential explanatory mixed methods design, wherein qualitative findings from phase 1 inform the quantitative evaluation in phase 3. Integration of findings is achieved through the use of joint interpretive displays, which link CCCM content domains with corresponding subscales of the CCAT-N. This approach enables the generation of comprehensive metainferences by combining statistical outcomes with experiential insights related to intervention implementation.

Quantitative analysis for phase 3 will focus on evaluating the effectiveness of the CCCM intervention. The primary outcome, namely, cultural competence as measured by total CCAT-N scores, will be analyzed using linear mixed-effects models, incorporating random intercepts to account for clustering at the ward level.

Secondary outcomes will be analyzed using generalized estimating equations to assess changes over time across baseline, postintervention, and 90-day follow-up measurements. Mediation analysis will also be conducted to examine whether improvements in cultural competence mediate changes in patient satisfaction.

Missing data will be handled using multiple imputation methods, provided that missingness does not exceed 20%, and patterns of missing data will be carefully examined prior to analysis.

A qualitative component is planned as part of the mixed methods design to further explore participant experiences. Follow-up interviews will be conducted with a purposive sample of 15 nurses and 15 patients. Data will be analyzed using reflexive thematic analysis, with explicit attention to researcher positionality and iterative development of the coding framework.

Trustworthiness of qualitative findings will be ensured using the criteria proposed by Lincoln and Guba [18], including credibility, transferability, dependability, and confirmability. Participant validation will also be undertaken to enhance the authenticity of findings.

The final statistical analysis is expected to be completed between March and June 2026. The findings of the study will be disseminated through peer-reviewed journals focusing on transcultural nursing, nursing education, and health care quality. In addition, the results will be presented at national and international conferences to facilitate wider academic and clinical engagement. Efforts will also be made to share key findings with health care institutions and nursing educators to support the integration of culturally competent practices into clinical training and practice.

This 3-phase trial hypothesizes that the CCCM will produce moderate-to-large improvements in nurses’ cultural competence and patient satisfaction, consistent with structured intervention studies demonstrating moderate-to-large effect sizes [19,20].

Indian nursing curricula continue to prioritize biomedical competencies over structured transcultural development [21]. These gaps are compounded by limitations in faculty preparedness [22]. Linguistic diversity across India’s 22 officially recognized languages presents persistent communication barriers [23]. These challenges are further amplified by the growth of medical tourism [24]. The CCCM addresses these gaps through a structured 5-domain model grounded in transcultural and cultural safety frameworks [13,25]. Its blended instructional design aligns with simulation-based educational evidence demonstrating superior competency gains [19].

Compared with previous evidence from quasi-experimental studies conducted in Indian hospitals [26] and recent RCTs [19], this protocol incorporates CONSORT (Consolidated Standards of Reporting Trials)–aligned randomization (Figure 1) [27], validated psychometric development standards [28], rigorous nursing research methodology [29], structured contamination control strategies, and a 90-day follow-up period. Implementation strategies are informed by updated reach, effectiveness, adoption, implementation, and maintenance (RE-AIM) framework guidance [30]. The single-center setting reflects current migration and linguistic diversity patterns [22]. The selected outcomes are aligned with the World Health Organization’s global health equity priorities [31].

If successful, this trial will provide (1) one of the first rigorously designed RCTs in India evaluating structured cultural competence training; (2) a validated, region-specific assessment and training toolkit; (3) a scalable 5-session intervention model; and (4) an equity-oriented strategy aligned with the World Health Organization’s health equity goals [30].

This study has certain limitations that should be considered when interpreting the findings. First, the trial is conducted in a single tertiary care teaching hospital, which may modestly limit generalizability to other health care settings across India that differ in infrastructure, staffing patterns, patient load, and linguistic diversity.

Second, although contamination control measures were incorporated, some degree of informal knowledge sharing between intervention and control participants in shared clinical environments cannot be entirely ruled out, which may have influenced group differences. Third, selected nurse-level outcomes are based on self-reported measures and may be subject to social desirability tendencies, despite the use of blinded outcome assessment procedures. Fourth, the 3-month follow-up period provides insight into short-term outcomes; however, longer follow-up would offer a clearer understanding of sustainability over time.

Fifth, contextual realities within Indian health care settings—including workload intensity, shift rotations, and limited protected training time—may influence implementation dynamics. These factors should be considered when adapting the intervention to other institutions. Linguistic diversity across regions may also necessitate contextual tailoring of training materials. Finally, while patient satisfaction is included as an outcome indicator, broader structural determinants of health equity extend beyond the scope of this intervention.

Future research should evaluate the effectiveness of CCCM in multicenter studies involving diverse health care settings across India. Longer follow-up periods are needed to determine the sustainability of improvements in cultural competence and patient satisfaction. Further studies should also examine the implementation of the module in different clinical specialties and evaluate its adaptability to other cultural and health care contexts. In addition, implementation research could explore barriers and facilitators to integrating culturally competent training into routine nursing education and continuing professional development.

This 3-phase RCT protocol outlines a rigorously designed evaluation of a structured CCCM tailored to the Indian tertiary hospital context. By integrating qualitative module development, expert validation, and a parallel-group randomized design with blinded outcome assessment and follow-up evaluation, the study addresses key methodological gaps identified in recent cultural competence intervention research.

If demonstrated to be effective, the CCCM may provide evidence for a pragmatic, time-efficient, and contextually adapted cultural competence training model capable of improving nurse-level competencies and patient satisfaction outcomes. Given India’s increasing sociolinguistic diversity and expanding international patient population, structured cultural competence training represents both an equity-oriented strategy and a quality improvement initiative. The findings may inform curriculum reform, institutional training policies, and future multicenter effectiveness-implementation hybrid studies.