Thyroid CancerMAeSTro-SDMNCT06730893
Shared Decision-Making for Determining Treatment Strategies in Low-Risk Thyroid Cancer
A study testing SDM protocol in people with Thyroid Cancer and Papillary Thyroid Carcinoma, run by National Cancer Center, Korea.
Trial summary
This study is a multicenter cluster-randomized controlled trial conducted in Korea. A parallel, two-group cluster-randomized design will be used to test whether the Shared decision-making Group (SDM; intervention) is different from the Standard Care Group (SC; control). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Thyroid Cancer, Papillary Thyroid Carcinoma
- What is being tested?
- SDM protocol
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 310 participants
- Where
- No sites listed yet
- Study dates
- 12 May 2025to 31 Dec 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Adults aged 18 years or older with a thyroid nodule of 1.0 cm or less confirmed as Bethesda category V (suspicious for PTC) or VI (PTC) based on cytopathological examination, or Bethesda category III (atypia of undetermined significance) with a confirmed BRAF V600E mutation.
- Patients with no evidence of distant metastasis, cervical lymph node metastasis, recurrent laryngeal nerve invasion, or tracheal invasion. Additionally, no evidence of extrathyroidal extension (ETE) should be present, and the tumor must not belong to high-risk subtypes of PTC (e.g., diffuse sclerosing, columnar cell, or solid subtype).
Who cannot join
- Patients who cannot undergo regular follow-up or are expected to have difficulties with follow-up.
- Patients with indeterminate or benign findings on thyroid biopsy.
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Shared Decision-Making for Determining Treatment Strategies in Low-Risk Thyroid Cancer: a Multicenter Cluster-Randomized Controlled Trial
This study is a multicenter cluster-randomized controlled trial conducted in Korea. A parallel, two-group cluster-randomized design will be used to test whether the Shared decision-making Group (SDM; intervention) is different from the Standard Care Group (SC; control).
Read the detailed description
The primary objective of this clinical trial is to evaluate whether the group provided with a decision support tool for treatment planning (Intervention; SDM group) demonstrates improved satisfaction with the decision-making process compared to the group receiving standard care (Control; SC group) among patients diagnosed with low-risk thyroid cancer who need to determine their treatment plan.
The data are collected from patients who are diagnosed with low-risk PTC and Twenty doctors with various experience of AS will participate in the study.
- Conditions
- Thyroid Cancer, Papillary Thyroid Carcinoma
- Being tested
- SDM protocol
- Keywords
- Active surveillance, Shared decision making
- Medical subject headings
- Thyroid Neoplasms, Thyroid Cancer, Papillary
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SDM protocolOther
Card news and Videos related to general knowledge and treatment of low-risk thyroid cancer
| Study group | Role | What they receive |
|---|---|---|
| SDM Group (Shared Decision-Making Group; Intervention Group) | Experimental | * Patients will receive detailed information, including an information leaflet about treatment options.
* Clinicians will guide patients through a structured SDM protocol before finalizing the treatment decision. Receives: Other: SDM protocol |
| SC Group (Standard Care Group; Control Group) | No intervention | - Patients will receive standard medical care following current clinical practices without the SDM protocol. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Decision Conflict Scale: DCS
which assesses an individual's perception and understanding of decision-making by 16 items. The scale is 5-point Likert scale from 0 (Strongly Agree) to 4 (Strongly Disagree), and scores are calculated through a) summed, b) divided by 16, and c) multiplied by 25, and range from 0 (no decisional conflict) to 100 (extremely high decisional conflict).
Measured: at enrollment
Secondary outcomes (6)
Decision Regret Scale: DRS
measures distress and remorse after making a healthcare decision. Scale ranges from 1 (Strongly agree) to 5(Strongly Disagree). The final score, the items are summed and averaged. ranging from 0 (no regret) to 100 (high regret).
Measured: at 6month, 12month after enrollment
Shared Decision Making Questionnaire (SDM-Q-9)
a nine-item questionnaire assessing the quality of SDM from both patient and clinician perspectives. Scale ranges from 1(completely disagree) to 6(completely agree). Higher scores are indicative of more SDM.
Measured: at enrollment, and 6month, 12month after enrollment
Patients' Perceived involvement of Care Scale (PICS)
a 13-item questionnaire evaluating patient engagement in primary care [12]. It measures Clinician's information provision, patient's proactive information-seeking, and patient participation in treatment decisions (5-point Likert scale; 1 = Strongly Disagree, 5 = Strongly Agree). Higher scores indicate lower clinician control and greater patient involvement in decision-making.
Measured: at enrollment, and 6month, 12month after enrollment
multifocal approach to sharing in shared decision making(Mappin'SDM)
that incorporates physician, patient, and observer perspectives during medical consultations. a 15-item tool adapted from the 12-item OPTION scale to evaluate observed patient involvement in decision-making [13]. Each item consists of behavioral and outcome components (a total of 30 items), rated by patients, clinicians, and observers (through real-time or via video review). Scale ranges from 0(not at all) to 5(absolutely true). High scores indicate high quality of decision-making communication across patient engagement.
Measured: at enrollment, and 6month, 12month after enrollment
Comparison of Quality of Life between the shared decision group and standard care group
The Quality of Life - Thyroid (QOL-Thyroid) questionnaire was 30 items. These are assigned to four scales, each reflecting an aspect of QoL. Physical well-being is measured with two items and 13 questions, psychological well-being with 13 items and 22 questions, social concerns with eight items and 14 questions, and spiritual well-being with seven items and questions. Response options range from '0 = worst outcome' to '10 = best outcome' on an ordinal 11-point scale.
Measured: at enrollment, and 6month, 12month after enrollment
Hospital Anxiety and Depression
a 14-item tool (7 for anxiety, 7 for depression), developed to measure hospital patients' levels of anxiety and depression. Each item is rated on a 0-3 scale, with total scores ranging from 0 to 21 per subscale. A cutoff score of 8 or higher indicates clinically significant symptoms, based on Korean validation studies.
Measured: at enrollment, and 6month, 12month after enrollment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Dec 2024
- Study start12 May 2025 (estimated)
- Primary completion31 Dec 2027 (estimated)
- Study completion31 Dec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Thyroid CancerStudies 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 N/A
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 310 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Cancer Center, Korea
- Sponsor type
- Other government
- Collaborators
- Seoul National University Hospital, Seoul National University Bundang Hospital, SMG-SNU Boramae Medical Center, Nowon Eulji Medical Center, Hanyang University
- Responsible party
- Sponsor
- Investigators
- Young Joo Park, Principal investigator, Seoul National University HospitalEun Kyung Lee, Principal investigator, National Cancer CenterMin Joo Kim, Principal investigator, Seoul National University Bundang HospitalYoung Shin Song, Principal investigator, SMC-SNU Boramae Medical CenterKyong Yeun Jung, Principal investigator, Nowon Eulji Medical CenterShin Je Moon, Principal investigator, Hanyang University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06730893
- Sponsor's protocol ID
- 2025-0008
- Acronym
- MAeSTro-SDM
- Status last verified
- Apr 2025
- First submitted
- 9 Dec 2024
- Last updated
- 30 Apr 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Lee EK, Kim MJ, Hwangbo Y, Moon JH, Cho SW, Chai YJ, Choi JY, Jung YS, Lee KE, Chung EJ, Kim K, Kim SJ, Kim W, Kim YH, Lee YK, Jang J, Song YS, Yi KH, Yu HW, Moon S, Jung KY, Kim HJ, Ryu CH, Ryu J, Seok J, Kang SH, Lee S, Chu AJ, Lee CY, Lee JY, Lim H, Kim JH, Park SK, Park YJ. Shared Decision-Making for Determining Treatment Strategies in Low-Risk Thyroid Cancer: Protocol of a Multicenter Cluster-Randomized Trial (MAeSTro-SDM). J Korean Med Sci. 2026 Jan 26;41(4):e58. doi: 10.3346/jkms.2026.41.e58.
PubMed 41589080
Study at a glance
From the registry record, last updated by the sponsor on 30 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Shared Decision-Making for Determining Treatment Strategies in Low-Risk Thyroid Cancer: a Multicenter Cluster-Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT06730893
- Acronym / sponsor ID
- MAeSTro-SDM / 2025-0008
- Conditions
- Thyroid Cancer, Papillary Thyroid Carcinoma
- Keywords
- Active surveillance, Shared decision making
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 310 participants (estimated)
- Lead sponsor
- National Cancer Center, KoreaOther government
- Collaborators
- Seoul National University Hospital, Seoul National University Bundang Hospital, SMG-SNU Boramae Medical Center, Nowon Eulji Medical Center, Hanyang University
- Study start
- 12 May 2025 (estimated)
- Primary completion
- 31 Dec 2027 (estimated)
- Study completion
- 31 Dec 2027 (estimated)
- First posted
- 12 Dec 2024 (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.
This study is a multicenter cluster-randomized controlled trial conducted in Korea. A parallel, two-group cluster-randomized design will be used to test whether the Shared decision-making Group (SDM; intervention) is different from the Standard Care Group (SC; control).
Detailed description
The primary objective of this clinical trial is to evaluate whether the group provided with a decision support tool for treatment planning (Intervention; SDM group) demonstrates improved satisfaction with the decision-making process compared to the group receiving standard care (Control; SC group) among patients diagnosed with low-risk thyroid cancer who need to determine their treatment plan.
The data are collected from patients who are diagnosed with low-risk PTC and Twenty doctors with various experience of AS will participate in the study.
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| SDM Group (Shared Decision-Making Group; Intervention Group) | Experimental | Other: SDM protocol* Patients will receive detailed information, including an information leaflet about treatment options. * Clinicians will guide patients through a structured SDM protocol before finalizing the treatment decision. |
| SC Group (Standard Care Group; Control Group) | No intervention | –- Patients will receive standard medical care following current clinical practices without the SDM protocol. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Adults aged 18 years or older with a thyroid nodule of 1.0 cm or less confirmed as Bethesda category V (suspicious for PTC) or VI (PTC) based on cytopathological examination, or Bethesda category III (atypia of undetermined significance) with a confirmed BRAF V600E mutation.
- Patients with no evidence of distant metastasis, cervical lymph node metastasis, recurrent laryngeal nerve invasion, or tracheal invasion. Additionally, no evidence of extrathyroidal extension (ETE) should be present, and the tumor must not belong to high-risk subtypes of PTC (e.g., diffuse sclerosing, columnar cell, or solid subtype).
Key exclusion criteria (2 listed)
- Patients who cannot undergo regular follow-up or are expected to have difficulties with follow-up.
- Patients with indeterminate or benign findings on thyroid biopsy.
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 |
|---|---|---|
| SDM protocolCard news and Videos related to general knowledge and treatment of low-risk thyroid cancer | Other | SDM Group (Shared Decision-Making Group; Intervention Group) |
Primary outcome
Decision Conflict Scale: DCS
Time frame: at enrollment
which assesses an individual's perception and understanding of decision-making by 16 items. The scale is 5-point Likert scale from 0 (Strongly Agree) to 4 (Strongly Disagree), and scores are calculated through a) summed, b) divided by 16, and c) multiplied by 25, and range from 0 (no decisional conflict) to 100 (extremely high decisional conflict).
6 secondary outcomes
Decision Regret Scale: DRS
Time frame: at 6month, 12month after enrollment
Shared Decision Making Questionnaire (SDM-Q-9)
Time frame: at enrollment, and 6month, 12month after enrollment
Patients' Perceived involvement of Care Scale (PICS)
Time frame: at enrollment, and 6month, 12month after enrollment
multifocal approach to sharing in shared decision making(Mappin'SDM)
Time frame: at enrollment, and 6month, 12month after enrollment
Comparison of Quality of Life between the shared decision group and standard care group
Time frame: at enrollment, and 6month, 12month after enrollment
Hospital Anxiety and Depression
Time frame: at enrollment, and 6month, 12month after enrollment
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Apr 2025.
- Derived from this study: PubMed 41589080Lee EK, Kim MJ, Hwangbo Y, Moon JH, Cho SW, Chai YJ, Choi JY, Jung YS, Lee KE, Chung EJ, Kim K, Kim SJ, Kim W, Kim YH, Lee YK, Jang J, Song YS, Yi KH, Yu HW, Moon S, Jung KY, Kim HJ, Ryu CH, Ryu J, Seok J, Kang SH, Lee S, Chu AJ, Lee CY, Lee JY, Lim H, Kim JH, Park SK, Park YJ. Shared Decision-Making for Determining Treatment Strategies in Low-Risk Thyroid Cancer: Protocol of a Multicenter Cluster-Randomized Trial (MAeSTro-SDM). J Korean Med Sci. 2026 Jan 26;41(4):e58. doi: 10.3346/jkms.2026.41.e58.
- Individual participant dataSharing planned: No
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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.
Young Joo Park principal investigator
Seoul National University Hospital
Eun Kyung Lee principal investigator
National Cancer Center
Min Joo Kim principal investigator
Seoul National University Bundang Hospital
Questions about this trial
What is this clinical trial studying?
A study testing SDM protocol in people with Thyroid Cancer and Papillary Thyroid Carcinoma, run by National Cancer Center, Korea.
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 2 inclusion and 2 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: opening soon, as of the sponsor's last update on 30 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.
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.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Eun Kyung Lee (+82-31-920-1743, eklee@ncc.re.kr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Decision Conflict Scale: DCS (time frame: at enrollment). 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 NCT06730893, which also lists 1 linked publication.
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 30 Apr 2025.