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HypothyroidismPhase 4SORTEDNCT01647750

Study of Optimal Replacement of Thyroxine in the Elderly

A Phase 4 study testing Levothyroxine in people with Hypothyroidism, run by Newcastle-upon-Tyne Hospitals NHS Trust at 2 sites in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

All patients with hypothyroidism are currently treated the same way, regardless of age. The investigators want to look at whether people aged 80 years or older would benefit from being treated with lower doses of levothyroxine. Read more about this study

Who is it for?
Ages 80 years and older
Conditions the study is for
Hypothyroidism
What is being tested?
Levothyroxine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
48 participants
Where
2 sitesUnited Kingdom
Study dates
Aug 2012to Aug 2014
Phase
Phase 4
Are there results?
None posted in the registry

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 80 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Males and Females aged 80 years or older
  • Diagnosed with hypothyroidism and treated with Levothyroxine for at least 6 months
  • Living independently in the community
  • All TSH results within the range 0.4 - 4mU/L in the 3 months before commencing the study
  • Participant has provided written informed consent for participation in the study, prior to any study-specific procedures

Who cannot join

  • Established dementia and therefore deemed incapable of providing informed consent.
  • Other medical conditions which, inthe opinion of the Chief Investigator, would prevent them from participating in the study (for example, end stage cancer, severe chronic health conditions where the patient is housebound)
  • Nursing Homes or Residential Care Home residents
  • Individuals with thyroid cancer: since they require high doses of LT4 to suppress their serum TSH
  • Individuals on 25 mcg dailty of LT4: dose reduction will mean that they stop thyroid replacement treatment
  • Non english speaking individuals
Show all 9Show fewer
  • Participation in any other investigational trials within the last 3 months
  • Participants prescribed medications that can affect thyroid function (amiodarone, lithium, carbimazole or propylthiouracil)
  • Known or suspected lactose intolerance (this would have implications for the proposed over-encapsulated IMP)

Trial locations and contacts

2 sites in 1 country.

United Kingdom2 sites
  • Bensham Hospital

    Gateshead, Tyne and Wear, NE8 4YL

  • Clinical Research Facility

    Newcastle upon Tyne, Tyne and Wear, NE1 4LP

Other trials in United Kingdom

About this study

Official title: Study of Optimal Replacement of Thyroxine in the Elderly (SORTED) SORTED 1 - a Randomised Controlled Trial (Pilot Study), SORTED 2 - Qualitative Interviews, SORTED 3 - Retrospective Cohort

All patients with hypothyroidism are currently treated the same way, regardless of age. The investigators want to look at whether people aged 80 years or older would benefit from being treated with lower doses of levothyroxine. There are three reasons why the investigators think this could be beneficial, but this is not yet proven:

  1. Some older people with hypothyroidism may have few symptoms.
  2. Doctors look at the amount of Thyroid Stimulating Hormone (TSH) in the patient's blood to decide the dose of Thyroxine received. The standard "normal" TSH range used to determine the dose of levothyroxine is from younger people. The investigators wonder whether this is appropriate to all age ranges particularly as the investigators know that older people may normally have higher TSH values.
  3. If TSH levels are too low there may be a slight increased risk of problems such as brittle bones or an irregular heartbeat.
Read more

The best way to test whether older people benefit from lower doses of levothyroxine is by a large clinical trial. Before the investigators can do this, the investigators need to run a smaller clinical trial called a "pilot study" (SORTED 1) to examine whether this is practical and acceptable. The pilot study aims to recruit 50 patients with hypothyroidism aged 80 or above.

Participants will be randomly allocated to receive their routine or lower dose of levothyroxine. Follow-up will be conducted over approximately 25 weeks.

The investigators also propose a qualitative study (SORTED 2) to specifically understand patient's willingness to take part in a RCT and participant's experience of the intervention.

Finally, the investigators propose a retrospective cohort study of 400 treated hypothyroid patients aged 80 years or more registered in 2008 in Primary Care Practices with the aim of studying outcomes after 4 years. The cohort study will collect data required to inform a sample size calculation for a future full study where the primary outcome will be 4 year mortality.

Conditions
Hypothyroidism
Being tested
Levothyroxine
Medical subject headings
Hypothyroidism

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LevothyroxineDrug

    Participants in the lower dose arm of the study will receive a lower dose of levothyroxine than their usual dose

  • LevothyroxineDrug

    Participants in the standard dose of treatment will receive their usual dose of levothyroxine

Study groups in NCT01647750
Study groupRoleWhat they receive
Lower dose of levothyroxineOtherParticipants may be randomised to receive a lower dose of levothyroxine (lower than their usual dose) to achieve a target TSH level of 4.1 - 8.0 mU/L
Receives: Drug: Levothyroxine
Standard dose of levothyroxineOtherPatients may be randomised to receive their usual dose of levothyroxine (target TSH level 0.4 - 4.0 mU/L)
Receives: Drug: Levothyroxine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Participant's acceptability of study design and willingness to enter study

    Participant's acceptability of study design as measured byt he completion rate of participants in each randomised group, as well as their willingness to enter the trial (consented participant to eligible participant approached ratio)

    Measured: Until completion of recruitment, approximately 24 months

Secondary outcomes (7)
  1. Participant recruitment rate

    As measured by the number of patients randomised divided by the length of the recruitment period. The recruitment period runs from the date that recruitment opened to the date of last randomisation.

    Measured: Until completion of recruitment, approximately 24 months

  2. Time to achieve desired TSH levels

    To review and assess the dose titration strategy (ie reduced LT4 dose or same dose LT4) and length of time required to achieved desired TSH levels (ie number of participants in each group that reach target TSH range at both 12 and 24 weeks)

    Measured: Until participant completion of SORTED 1 study, approximately within 24 weeks

  3. Medication compliance

    Tablet count

    Measured: For the duration of participant involvment in the study, maximum of 25 weeks

  4. The acceptability of three patient completed questionnaires

    The questionnaires include the generic QoL questionnaire (EQ-5D), validated disease-specific QoL questionanaire (ThyDQol) and disease specific hypothyroid-symptom check list (ThySC). The time taken to complete the three questionnaires will be recorded and questionnaire completion rates will be recorded and usefulnesss of questionnaires determined. Any third-party held required in a questionnaire's completion will be recorded.

    Measured: For the duration of participant involvement in the study, maximum of 25 weeks

  5. Assessment of mobility

    Measured by the nurse administered TUG Test, and the FRAT (Falls Risk Assessment Tool)

    Measured: For the duration of participant involvement in this study, maximum of 25 weeks

  6. Change in specific cardiovascular risk factors

    Lipid profile (total cholesterol, HDL, Triglycerides), blood pressure and body weight, and serum results

    Measured: For the duration of participant involvement in the study, maximum of 25 weeks

  7. Measure of risk of falls

    Measure by nurse administrated FRAT (Falls Risk Assessment Tool) test.

    Measured: For the duration of participant involvement in the study, maximum 25 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Jul 2012 (estimated)
  2. Study startAug 2012
  3. Primary completionAug 2014
  4. Study completionAug 2014

Resources

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
48 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01647750
Sponsor's protocol ID
5863
Other IDs
PB-PG-0610-22139, 2011-004425-27, ISRCTN16043724
Acronym
SORTED
Status last verified
Oct 2015
First submitted
16 Jul 2012
Last updated
12 Oct 2015
Results posted
No
Data monitoring committee
Yes

Publications

  • Razvi S, Ingoe L, Ryan V, Pearce SH, Wilkes S. Study of Optimal Replacement of Thyroxine in the Elderly (SORTED) - results from the feasibility randomised controlled trial. Thyroid Res. 2016 Oct 10;9:5. doi: 10.1186/s13044-016-0034-x. eCollection 2016.

    PubMed 27766119

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Levothyroxine in people with Hypothyroidism, run by Newcastle-upon-Tyne Hospitals NHS Trust at 2 sites in United Kingdom.

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 5 inclusion and 9 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: finished, as of the sponsor's last update on 12 Oct 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Participant's acceptability of study design and willingness to enter study (time frame: Until completion of recruitment, approximately 24 months). 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 NCT01647750, 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 12 Oct 2015.

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