research study protocol example

Write an Error-free Research Protocol As Recommended by WHO: 21 Elements You Shouldn’t Miss!

Principal Investigator: Did you draft the research protocol?

Student: Not yet. I have too many questions about it. Why is it important to write a research protocol? Is it similar to research proposal? What should I include in it? How should I structure it? Is there a specific format?

Researchers at an early stage fall short in understanding the purpose and importance of some supplementary documents, let alone how to write them. Let’s better your understanding of writing an acceptance-worthy research protocol.

Table of Contents

What Is Research Protocol?

The research protocol is a document that describes the background, rationale, objective(s), design, methodology, statistical considerations and organization of a clinical trial. It is a document that outlines the clinical research study plan. Furthermore, the research protocol should be designed to provide a satisfactory answer to the research question. The protocol in effect is the cookbook for conducting your study

Why Is Research Protocol Important?

In clinical research, the research protocol is of paramount importance. It forms the basis of a clinical investigation. It ensures the safety of the clinical trial subjects and integrity of the data collected. Serving as a binding document, the research protocol states what you are—and you are not—allowed to study as part of the trial. Furthermore, it is also considered to be the most important document in your application with your Institution’s Review Board (IRB).

It is written with the contributions and inputs from a medical expert, a statistician, pharmacokinetics expert, the clinical research coordinator, and the project manager to ensure all aspects of the study are covered in the final document.

Is Research Protocol Same As Research Proposal?

Often misinterpreted, research protocol is not similar to research proposal. Here are some significant points of difference between a research protocol and a research proposal:

What Are the Elements/Sections of a Research Protocol?

According to Good Clinical Practice guidelines laid by WHO, a research protocol should include the following:

1. General Information

• Protocol title, protocol identifying number (if any), and date.
• Name and address of the funder.
• Name(s) and contact details of the investigator(s) responsible for conducting the research, the research site(s).
• Responsibilities of each investigator.
• Name(s) and address(es) of the clinical laboratory(ies), other medical and/or technical department(s) and/or institutions involved in the research.

2. Rationale & Background Information

• The rationale and background information provides specific reasons for conducting the research in light of pertinent knowledge about the research topic.
• It is a statement that includes the problem that is the basis of the project, the cause of the research problem, and its possible solutions.
• It should be supported with a brief description of the most relevant literatures published on the research topic.

3. Study Objectives

• The study objectives mentioned in the research proposal states what the investigators hope to accomplish. The research is planned based on this section.
• The research proposal objectives should be simple, clear, specific, and stated prior to conducting the research.
• It could be divided into primary and secondary objectives based on their relativity to the research problem and its solution.

4. Study Design

• The study design justifies the scientific integrity and credibility of the research study.
• The study design should include information on the type of study, the research population or the sampling frame, participation criteria (inclusion, exclusion, and withdrawal), and the expected duration of the study.

5. Methodology

• The methodology section is the most critical section of the research protocol.
• It should include detailed information on the interventions to be made, procedures to be used, measurements to be taken, observations to be made, laboratory investigations to be done, etc.
• The methodology should be standardized and clearly defined if multiple sites are engaged in a specified protocol.

6. Safety Considerations

• The safety of participants is a top-tier priority while conducting clinical research .
• Safety aspects of the research should be scrutinized and provided in the research protocol.

7. Follow-up

• The research protocol clearly indicate of what follow up will be provided to the participating subjects.
• It must also include the duration of the follow-up.

8. Data Management and Statistical Analysis

• The research protocol should include information on how the data will be managed, including data handling and coding for computer analysis, monitoring and verification.
• It should clearly outline the statistical methods proposed to be used for the analysis of data.
• For qualitative approaches, specify in detail how the data will be analysed.

9. Quality Assurance

• The research protocol should clearly describe the quality control and quality assurance system.
• These include GCP, follow up by clinical monitors, DSMB, data management, etc.

10. Expected Outcomes of the Study

• This section indicates how the study will contribute to the advancement of current knowledge, how the results will be utilized beyond publications.
• It must mention how the study will affect health care, health systems, or health policies.

11. Dissemination of Results and Publication Policy

• The research protocol should specify not only how the results will be disseminated in the scientific media, but also to the community and/or the participants, the policy makers, etc.
• The publication policy should be clearly discussed as to who will be mentioned as contributors, who will be acknowledged, etc.

12. Duration of the Project

• The protocol should clearly mention the time likely to be taken for completion of each phase of the project.
• Furthermore a detailed timeline for each activity to be undertaken should also be provided.

13. Anticipated Problems

• The investigators may face some difficulties while conducting the clinical research. This section must include all anticipated problems in successfully completing their projects.
• Furthermore, it should also provide possible solutions to deal with these difficulties.

14. Project Management

• This section includes detailed specifications of the role and responsibility of each investigator of the team.
• Everyone involved in the research project must be mentioned here along with the specific duties they have performed in completing the research.
• The research protocol should also describe the ethical considerations relating to the study.
• It should not only be limited to providing ethics approval, but also the issues that are likely to raise ethical concerns.
• Additionally, the ethics section must also describe how the investigator(s) plan to obtain informed consent from the research participants.
• This section should include a detailed commodity-wise and service-wise breakdown of the requested funds.
• It should also include justification of utilization of each listed item.

17. Supplementary Support for the Project

• This section should include information about the received funding and other anticipated funding for the specific project.

18. Collaboration With Other Researchers or Institutions

• Every researcher or institute that has been a part of the research project must be mentioned in detail in this section of the research protocol.

19. Curriculum Vitae of All Investigators

• The CVs of the principal investigator along with all the co-investigators should be attached with the research protocol.
• Ideally, each CV should be limited to one page only, unless a full-length CV is requested.

20. Other Research Activities of Investigators

• A list of all current research projects being conducted by all investigators must be listed here.

21. References

• All relevant references should be mentioned and cited accurately in this section to avoid plagiarism.

How Do You Write a Research Protocol? (Research Protocol Example)

Main Investigator    

Number of Involved Centers (for multi-centric studies)

Indicate the reference center

Title of the Study

Protocol ID (acronym)

Keywords (up to 7 specific keywords)

Study Design

Mono-centric/multi-centric

Perspective/retrospective

Controlled/uncontrolled

Open-label/single-blinded or double-blinded

Randomized/non-randomized

n parallel branches/n overlapped branches

Experimental/observational

Endpoints (main primary and secondary endpoints to be listed)

Expected Results                                                

Analyzed Criteria

Main variables/endpoints of the primary analysis

Main variables/endpoints of the secondary analysis

Safety variables

Health Economy (if applicable)

Visits and Examinations

Therapeutic plan and goals

Visits/controls schedule (also with graphics)

Comparison to treatment products (if applicable)

Dose and dosage for the study duration (if applicable)

Formulation and power of the studied drugs (if applicable)

Method of administration of the studied drugs (if applicable)

Informed Consent

Study Population

Short description of the main inclusion, exclusion, and withdrawal criteria

Sample Size

Estimated Duration of the Study

Safety Advisory

Classification Needed

Requested Funds

Additional Features (based on study objectives)

Click Here to Download the Research Protocol Example/Template

Be prepared to conduct your clinical research by writing a detailed research protocol. It is as easy as mentioned in this article. Follow the aforementioned path and write an impactful research protocol. All the best!

Clear as template! Please, I need your help to shape me an authentic PROTOCOL RESEARCH on this theme: Using the competency-based approach to foster EFL post beginner learners’ writing ability: the case of Benin context. I’m about to start studies for a master degree. Please help! Thanks for your collaboration. God bless.

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Article Contents

Introduction, contents of a research study protocol, conflict of interest statement, how to write a research study protocol.

• Article contents
• Figures & tables
• Supplementary Data

Julien Al Shakarchi, How to write a research study protocol, Journal of Surgical Protocols and Research Methodologies , Volume 2022, Issue 1, January 2022, snab008, https://doi.org/10.1093/jsprm/snab008

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A study protocol is an important document that specifies the research plan for a clinical study. Many funders such as the NHS Health Research Authority encourage researchers to publish their study protocols to create a record of the methodology and reduce duplication of research effort. In this paper, we will describe how to write a research study protocol.

A study protocol is an essential part of a research project. It describes the study in detail to allow all members of the team to know and adhere to the steps of the methodology. Most funders, such as the NHS Health Research Authority in the United Kingdom, encourage researchers to publish their study protocols to create a record of the methodology, help with publication of the study and reduce duplication of research effort. In this paper, we will explain how to write a research protocol by describing what should be included.

Introduction

The introduction is vital in setting the need for the planned research and the context of the current evidence. It should be supported by a background to the topic with appropriate references to the literature. A thorough review of the available evidence is expected to document the need for the planned research. This should be followed by a brief description of the study and the target population. A clear explanation for the rationale of the project is also expected to describe the research question and justify the need of the study.

Methods and analysis

A suitable study design and methodology should be chosen to reflect the aims of the research. This section should explain the study design: single centre or multicentre, retrospective or prospective, controlled or uncontrolled, randomised or not, and observational or experimental. Efforts should be made to explain why that particular design has been chosen. The studied population should be clearly defined with inclusion and exclusion criteria. These criteria will define the characteristics of the population the study is proposing to investigate and therefore outline the applicability to the reader. The size of the sample should be calculated with a power calculation if possible.

The protocol should describe the screening process about how, when and where patients will be recruited in the process. In the setting of a multicentre study, each participating unit should adhere to the same recruiting model or the differences should be described in the protocol. Informed consent must be obtained prior to any individual participating in the study. The protocol should fully describe the process of gaining informed consent that should include a patient information sheet and assessment of his or her capacity.

The intervention should be described in sufficient detail to allow an external individual or group to replicate the study. The differences in any changes of routine care should be explained. The primary and secondary outcomes should be clearly defined and an explanation of their clinical relevance is recommended. Data collection methods should be described in detail as well as where the data will be kept secured. Analysis of the data should be explained with clear statistical methods. There should also be plans on how any reported adverse events and other unintended effects of trial interventions or trial conduct will be reported, collected and managed.

Ethics and dissemination

A clear explanation of the risk and benefits to the participants should be included as well as addressing any specific ethical considerations. The protocol should clearly state the approvals the research has gained and the minimum expected would be ethical and local research approvals. For multicentre studies, the protocol should also include a statement of how the protocol is in line with requirements to gain approval to conduct the study at each proposed sites.

It is essential to comment on how personal information about potential and enrolled participants will be collected, shared and maintained in order to protect confidentiality. This part of the protocol should also state who owns the data arising from the study and for how long the data will be stored. It should explain that on completion of the study, the data will be analysed and a final study report will be written. We would advise to explain if there are any plans to notify the participants of the outcome of the study, either by provision of the publication or via another form of communication.

The authorship of any publication should have transparent and fair criteria, which should be described in this section of the protocol. By doing so, it will resolve any issues arising at the publication stage.

Funding statement

It is important to explain who are the sponsors and funders of the study. It should clarify the involvement and potential influence of any party. The sponsor is defined as the institution or organisation assuming overall responsibility for the study. Identification of the study sponsor provides transparency and accountability. The protocol should explicitly outline the roles and responsibilities of any funder(s) in study design, data analysis and interpretation, manuscript writing and dissemination of results. Any competing interests of the investigators should also be stated in this section.

A study protocol is an important document that specifies the research plan for a clinical study. It should be written in detail and researchers should aim to publish their study protocols as it is encouraged by many funders. The spirit 2013 statement provides a useful checklist on what should be included in a research protocol [ 1 ]. In this paper, we have explained a straightforward approach to writing a research study protocol.

None declared.

Chan   A-W , Tetzlaff   JM , Gøtzsche   PC , Altman   DG , Mann   H , Berlin   J , et al.    SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials . BMJ   2013 ; 346 : e7586 .

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• Protocol Templates For Clinical Trials

Protocol Templates for Clinical Trials

NIH applicants can use a template with instructional and sample text to help write clinical protocols for the following types of research:

• Phase 2 or 3 clinical trials that require Investigational New Drug applications (IND) or Investigational Device Exemption (IDE) applications
• Behavioral and social sciences research involving humans

These clinical protocol templates can be accessed via the secure web-based e-Protocol Writing Tool and as Word templates  

• enables participation for multiple writers and reviewers
• allows assignments for writers and collaborators
• tracks progress and ensure document version control

Word Templates

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NOT-OD-17-064 NIH and FDA Release Protocol Template for Phase 2 and 3 IND/IDE Clinical Trials

• NOT-OD-19-092 NIH Releases Protocol Template for Behavioral and Social Sciences Research Involving Humans

This page last updated on: July 12, 2021

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How to Write a Study Protocol

• First Online: 02 February 2019

Cite this chapter

• Lukas B. Moser 8 , 9 &
• Michael T. Hirschmann 8 , 9  

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This chapter aims to provide a guide for young trainees writing their first study protocol. It includes important aspects junior researchers should consider before getting started and preparing their first study protocol. After having read the chapter, the reader should have a good idea about what a study protocol is about and be able to answer the question why, when, and how a study protocol should be written. Finally, the reader will be prepared to master the very first step of conducting a successful study—writing a brief, concise, but comprehensive study protocol.

Study protocol examples of typical clinical scenarios further illustrate the approach to this mandatory and important part of a research project.

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Department of Orthopaedic Surgery and Traumatology, Kantonsspital Baselland (Bruderholz, Liestal, Laufen), Bruderholz, Switzerland

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Volker Musahl

Department of Orthopaedics, Sahlgrenska Academy, Gothenburg University, Sahlgrenska University Hospital, Gothenburg, Sweden

Jón Karlsson

Department of Orthopaedic Surgery and Traumatology, Kantonsspital Baselland (Bruderholz, Laufen und Liestal), Bruderholz, Switzerland

Michael T. Hirschmann

McMaster University, Hamilton, ON, Canada

Olufemi R. Ayeni

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Robert G. Marx

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Jason L. Koh

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Norimasa Nakamura

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Moser, L.B., Hirschmann, M.T. (2019). How to Write a Study Protocol. In: Musahl, V., et al. Basic Methods Handbook for Clinical Orthopaedic Research. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-58254-1_8

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