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Updated June 2026 · ClinicalTrials.gov

RECRUITINGPhase 1INTERVENTIONAL

Heat Therapy in Type 2 Diabetes

Home-based Heat Therapy in Older Adults with Type 2 Diabetes: a Pilot Trial

Heat Therapy in Type 2 Diabetes (NCT06596967) is a Phase 1 interventional studying Type 2 Diabetes, sponsored by Purdue University. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

This study aims to test whether home-based heat therapy (HT) can improve the health of older adults with type 2 diabetes (T2D). T2D is common in older adults and can lead to severe issues such as heart disease, disability, and early death. While regular exercise is known to help manage T2D, many people with the condition find it difficult to stay active. This study explores HT as a simple, non-invasive treatment that may offer similar benefits. Participants will wear special leg sleeves that deliver heat to their legs for 90 minutes each day at home over 12 weeks. The study\'s primary goal is to assess whether HT treatment at home is feasible and safe to use. We hypotesize that people with diabetes who receive heat therapy will have better blood sugar control, stronger legs, less body fat, and improved ability to walk, along with lower blood pressure. If successful, HT could offer a new option for people with T2D to manage their condition, especially for those who struggle with regular exercise. This research could lead to larger studies and help provide a practical way to improve health and quality of life for older adults with diabetes.

What Stage of Research Is This?

Phase 1 trials test a new treatment for the first time in humans, focusing on safety, dosing, and how the body processes the drug. For Type 2 Diabetes, a Phase 1 study typically enrolls a small number of participants — often healthy volunteers or patients who have exhausted standard treatment options. Phase 1 results determine whether a treatment moves into larger Phase 2 efficacy studies.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

With a target enrollment of 24 participants, this is a small study — typical of early-phase research, rare-disease trials, or pilot studies designed to generate preliminary signal before a larger study is launched.

Who May Be Eligible (Plain English)

Who May Qualify: 1. age 55 and older 2. Type 2 Diabetes (documented by chart review, presence of treatment for type 2 Diabetes, fasting plasma glucose equal or greater than 126 mg/dL or A1C equal or greater than 6.5%). Who Should NOT Join This Trial: (1) HbA1c \<6.5% or \>9.0%, (2) body mass index \> 40 kg/m2, (3) insulin-dependent Type 1 Diabetes Mellitus, (4) incident cardiovascular events in the last year (heart attack, stroke), (5) symptomatic coronary artery disease and/or heart failure, (6) uncontrolled hypertension (systolic blood pressure \>150 mmHg and/or diastolic blood pressure \>110 mmHg), (7) hypotension (resting systolic BP \< 90 mmHg), (8) use of walking aid other than a cane, (9) active cancer, (10) impaired thermal sensation in the legs, (11) unable to fit into water-circulating garments, (12) orthopedic complications that preclude completion of physical function tests, (13) contraindications or inability to undergo a DXA scan, including implants, devices, or other foreign material, and inability to attain correct position and/or remain motionless for the measurement. Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: 1. age 55 and older 2. Type 2 Diabetes (documented by chart review, presence of treatment for type 2 Diabetes, fasting plasma glucose equal or greater than 126 mg/dL or A1C equal or greater than 6.5%). Exclusion Criteria: (1) HbA1c \<6.5% or \>9.0%, (2) body mass index \> 40 kg/m2, (3) insulin-dependent Type 1 Diabetes Mellitus, (4) incident cardiovascular events in the last year (heart attack, stroke), (5) symptomatic coronary artery disease and/or heart failure, (6) uncontrolled hypertension (systolic blood pressure \>150 mmHg and/or diastolic blood pressure \>110 mmHg), (7) hypotension (resting systolic BP \< 90 mmHg), (8) use of walking aid other than a cane, (9) active cancer, (10) impaired thermal sensation in the legs, (11) unable to fit into water-circulating garments, (12) orthopedic complications that preclude completion of physical function tests, (13) contraindications or inability to undergo a DXA scan, including implants, devices, or other foreign material, and inability to attain correct position and/or remain motionless for the measurement.

Treatments Being Tested

DEVICE

Heat therapy

Participants will be provided with a heat therapy system comprising a controller unit with a water pump and air pump, a portable heater, and leg sleeves featuring inner-layer water-circulating pads and an outer layer of inflatable bladders. The system is engineered to facilitate effective heat transfer through gentle pneumatic inflation, accommodating various limb dimensions. The heater will be set to warm the water to 42°C. Participants will be instructed to administer the therapy for 90 minutes daily in a seated or supine position.

DEVICE

Sham

Participants will be provided with a heat therapy system comprising a controller unit with a water pump and air pump, a portable heater, and leg sleeves featuring inner-layer water-circulating pads and an outer layer of inflatable bladders. The system is engineered to facilitate effective heat transfer through gentle pneumatic inflation, accommodating various limb dimensions. The heater will warm the water to 33°C. Participants will be instructed to administer the therapy for 90 minutes daily in a seated or supine position.

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Purdue University
West Lafayette, Indiana, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06596967), the sponsor (Purdue University), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06596967 clinical trial studying?

This study aims to test whether home-based heat therapy (HT) can improve the health of older adults with type 2 diabetes (T2D). T2D is common in older adults and can lead to severe issues such as heart disease, disability, and early death. While regular exercise is known to help manage T2D, many people with the condition find it difficult to stay active. This study explores HT as a simple, non-invasive treatment that may offer similar benefits. Participants will wear special leg sleeves that deliver heat to their legs for 90 minutes each day at home over 12 weeks. The study\'s primary goa… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06596967?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06596967?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06596967. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06596967. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-06-26 · Data from ClinicalTrials.gov.