Last Updated: June 25, 2026

CLINICAL TRIALS PROFILE FOR DEXTROTHYROXINE SODIUM


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All Clinical Trials for DEXTROTHYROXINE SODIUM

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00000482 ↗ Coronary Drug Project Completed National Heart, Lung, and Blood Institute (NHLBI) Phase 3 1965-04-01 To determine whether regular administration of lipid modifying drugs (clofibrate, nicotinic acid, estrogen, dextrothyroxine) to men with a documented myocardial infarction would result in significant reduction in total mortality over a five year period. Secondarily, to determine whether the degree to which these drugs changed serum lipids was correlated with any effect on mortality and morbidity rates; to gain further information on the long-term prognosis of myocardial infarction (by studying the control group as intensively as the treatment group); to acquire further experience and knowledge concerning the techniques and methodology of long-term clinical trials; to determine, in a substudy, the effectiveness of aspirin, a platelet inhibitor, in reducing recurrences of myocardial infarction.
NCT00000483 ↗ Coronary Drug Project Mortality Surveillance Completed National Heart, Lung, and Blood Institute (NHLBI) N/A 1981-06-01 To determine whether there were any long term sequelae of the drugs used in the Coronary Drug Project (estrogens, dextrothyroxine, nicotinic acid, clofibrate).
NCT00311987 ↗ Study of 3,5-Diiodothyropropionic Acid (DITPA) in Hypercholesterolemic Patients Terminated Johns Hopkins University Phase 1/Phase 2 2006-04-01 The natural thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are known to have a cholesterol-lowering effect. Their pharmacologic use for this purpose is limited, however, by their actions on other organs, including the heart, bone, and brain, where there can be side effects of excessive thyroid hormone action. 3,5-diiodothyropropionic acid (DITPA) is a thyroid hormone analog with relative selectivity for a form of the thyroid hormone receptor expressed in the liver, where it regulates several aspects of lipid metabolism, including the clearance of low-density lipoprotein (LDL) cholesterol. This study is designed to determine whether DITPA is safe and effective in achieving LDL cholesterol levels that are consistent with the National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP III) guidelines in patients who have not achieved those levels on conventional therapy, due to drug-resistant disease, drug intolerance, or both. This is a single-center, randomized, double-blind, placebo-controlled study. Following a 4-week Pre-Randomization Phase with dietary counseling and a 2-week placebo run-in, eligible patients will be randomized (1:1:1) to receive DITPA (90 mg/day, 180 mg/day), or placebo for a total treatment duration of 12 weeks. Sixty (60) patients will be randomized to 1 of 3 treatment groups in a 1:1:1 ratio (i.e., 20 patients per treatment group): - DITPA at 90 mg/day (45 mg twice a day [BID] taken orally) - DITPA at 180 mg/day (90 mg BID taken orally) - Placebo (BID taken orally) Those patients randomized to receive DITPA at 90 mg/day will receive 45 mg/day for the first 2 weeks, followed by 90 mg/day for 10 weeks. Those patients randomized to receive DITPA at 180 mg/day will receive 45 mg/day for the first 2 weeks, followed by 90 mg/day for the next 2 weeks, and then 180 mg/day for 8 weeks.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for DEXTROTHYROXINE SODIUM

Condition Name

Condition Name for DEXTROTHYROXINE SODIUM
Intervention Trials
Myocardial Ischemia 2
Cardiovascular Diseases 2
Coronary Disease 2
Heart Diseases 2
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Condition MeSH

Condition MeSH for DEXTROTHYROXINE SODIUM
Intervention Trials
Heart Diseases 2
Coronary Disease 2
Coronary Artery Disease 2
Myocardial Ischemia 2
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Clinical Trial Locations for DEXTROTHYROXINE SODIUM

Trials by Country

Trials by Country for DEXTROTHYROXINE SODIUM
Location Trials
United States 1
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Trials by US State

Trials by US State for DEXTROTHYROXINE SODIUM
Location Trials
Maryland 1
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Clinical Trial Progress for DEXTROTHYROXINE SODIUM

Clinical Trial Phase

Clinical Trial Phase for DEXTROTHYROXINE SODIUM
Clinical Trial Phase Trials
Phase 3 1
Phase 1/Phase 2 1
N/A 1
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Clinical Trial Status

Clinical Trial Status for DEXTROTHYROXINE SODIUM
Clinical Trial Phase Trials
Completed 2
Terminated 1
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Clinical Trial Sponsors for DEXTROTHYROXINE SODIUM

Sponsor Name

Sponsor Name for DEXTROTHYROXINE SODIUM
Sponsor Trials
National Heart, Lung, and Blood Institute (NHLBI) 2
Johns Hopkins University 1
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Sponsor Type

Sponsor Type for DEXTROTHYROXINE SODIUM
Sponsor Trials
NIH 2
Other 1
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Last updated: April 30, 2026

Dextrothyroxine Sodium: What Is the Clinical and Market Outlook Through the Current Evidence?

Clinical trials update: What trials exist and what do they indicate?

No complete, cross-verifiable clinical-trials dataset is available in the provided context to produce an accurate “update” (trial registry status, arms, endpoints, enrollment, results).

No complete, cross-verifiable dextrothyroxine sodium-specific efficacy/safety readouts are available in the provided context to support a defensible clinical interpretation.

Market analysis: Where does dextrothyroxine sodium sit commercially?

No complete, cross-verifiable market dataset is available in the provided context to quantify:

  • current sales or prescriptions,
  • unit pricing vs competitors,
  • payer coverage dynamics,
  • branded vs generic share,
  • geography-level launch or discontinuation.

Market projection: What growth scenario is supportable from public evidence?

No complete, cross-verifiable projection inputs are available in the provided context (baseline market size, CAGR drivers, competitive pipeline, pricing assumptions, reimbursement constraints, patent/market exclusivity timing).

As a result, no defensible market projection can be produced without fabricating key assumptions.


What Can Be Used to Anchor Decisions Right Now?

Competitive framing: What is the comparator set implied for a thyroid hormone product?

In the absence of dextrothyroxine sodium-specific market and trial data, decision-relevant comparators are typically other oral thyroid hormone therapies:

  • levothyroxine sodium (synthetic T4)
  • liothyronine sodium (synthetic T3)
  • combination T4/T3 regimens (where used)

No evidence in the provided context ties dextrothyroxine sodium to a specific payer advantage, interchangeability position, or clinical differentiation strong enough to underwrite forecasts.


Key Takeaways

  • Clinical-trials update cannot be produced: no cross-verifiable registry-level trial information is available in the provided context.
  • Market analysis and projections cannot be produced: no cross-verifiable sales, pricing, reimbursement, or exclusivity inputs are available in the provided context.
  • No defensible forecast is possible without injecting unsupported assumptions.

FAQs

1) What is dextrothyroxine sodium’s current clinical status based on public trial results?

A dextrothyroxine sodium-specific clinical status cannot be stated from the provided context due to lack of cross-verifiable trial outcome data.

2) Is dextrothyroxine sodium approved in major markets?

Approval status cannot be established from the provided context.

3) What endpoints would matter most in thyroid hormone differentiation?

Common endpoints in thyroid hormone programs include thyroid-stimulating hormone control, free T4 stability, patient-reported symptom outcomes, and safety (including cardiac and bone-related signals). No dextrothyroxine sodium-specific evidence is available here to map to actual results.

4) How would reimbursement typically shape adoption for a thyroid product?

Adoption usually depends on formulary listing, therapeutic interchangeability rules, and cost-effectiveness versus levothyroxine. No dextrothyroxine sodium-specific reimbursement evidence is available in the provided context.

5) What is the most critical missing piece for a market projection model?

A baseline market size with validated pricing and volume data plus exclusivity/patent timing and competitor substitution dynamics. None of these inputs are available in the provided context.


References

  1. (No sources were provided in the prompt.)

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