Clinical trial Recruiting at 1 site Interventional Ages 18 to 80

Enteral phosphate granules to treat low blood phosphate (hypophosphatemia)

Official title: A Prospective Clinical Study Evaluating the Effectiveness and Safety of Enteral Supplementation With Sodium Dihydrogen Phosphate and Disodium Hydrogen Phosphate Granules for Varying Degrees of Hypophosphatemia

Run by Union Hospital, Tongji Medical College, Huazhong University of Science and Technology · NCT07233889 · Data updated 2026-11-12

This trial will test whether giving enteral sodium dihydrogen phosphate and disodium hydrogen phosphate granules to adult ICU patients with low blood phosphate raises their serum phosphorus and is safe.

More Hypophosphatemia trials

Quick facts

Study typeInterventional
Ages18 Years to 80 Years
SexAll
Enrollment60 (estimated)
SponsorUnion Hospital, Tongji Medical College, Huazhong University of Science and Technology
Academic / other
Locations1 site (Wuhan, Hubei)
StatusRecruiting
StartedNovember 21, 2025
Main results expectedMay 31, 2026
Study endsJune 30, 2026
Registry record updatedNovember 28, 2025
Trial IDNCT07233889 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18–80 years old in the ICU with serum phosphate <0.80 mmol/L who can receive enteral nutrition (≥10 kcal/kg/day) and for whom the treating clinician has decided phosphate supplementation is required.

Probably not a fit

Patients who cannot receive enteral feeds (for example due to acute upper GI bleeding, intestinal obstruction, severe pancreatitis, digestive tract fistula, or enteral feeding intolerance), pregnant or lactating women, or those expected to leave the ICU within 96 hours are unlikely to benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Critically ill adult inpatients with mild to severe hypophosphatemia (serum phosphate <0.80 mmol/L) will receive enteral sodium dihydrogen phosphate and disodium hydrogen phosphate granules by mouth or via nasogastric tube. Doses will vary by severity and be given daily for up to 14 days while clinicians monitor serum phosphorus and clinical status. The primary outcomes are change in serum phosphate levels and the occurrence of gastrointestinal complications. The trial is single-center and conducted in the ICU at Union Hospital, Tongji Medical College in Wuhan, Hubei.

Why it matters

Potential benefit: If successful, enteral phosphate granules could restore low blood phosphate levels using an oral or tube route and reduce complications related to hypophosphatemia.

How similar studies have gone: Enteral phosphate replacement has been used in non-ICU settings and can raise serum phosphate, but high-quality randomized data in critically ill ICU populations are limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Aged 18-80 years (inclusive), regardless of gender;
2. ICU inpatients with a serum phosphate concentration \<0.80 mmol/L, and for whom the clinician determines phosphate supplementation is required;
3. Ability to receive enteral nutrition, with a daily enteral caloric intake ≥10 kcal/kg/day;
4. The subject or their legal guardian fully understands the purpose and significance of this trial, voluntarily agrees to participate, provides written informed consent, and is willing to strictly adhere to the clinical study protocol and complete the study.

Exclusion Criteria:

1. Pregnant and lactating women;
2. Patients with contraindications for enteral administration, such as acute upper gastrointestinal bleeding, mechanical intestinal obstruction, severe acute pancreatitis, digestive tract fistula, gastrointestinal dysfunction, intra-abdominal hypertension, enteral feeding intolerance, or continuous gastrointestinal decompression;
3. Expected ICU stay ≤96 hours;
4. Known allergy to any component of the investigational drug or drugs with a similar chemical structure;
5. Severe renal impairment: estimated glomerular filtration rate (eGFR) \<30 mL/min/1.73m²;
6. Subjects with hyperthyroidism requiring clinical intervention;
7. Subjects requiring sodium restriction;
8. Other conditions deemed by the investigator as unsuitable for inclusion.

Where it's running

  • Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
    Wuhan, Hubei, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Dipyridamole to prevent low phosphate after kidney transplant

    This study tests whether giving dipyridamole can help keep phosphate levels higher after a kidney transplant and reduce the need for phosphate supplements.

    Recruiting Phase 2 Stanford University · Stanford, California · NCT06824454

  • Impact of low phosphate levels on weaning off mechanical ventilation

    This study is testing if giving a phosphate supplement can help patients with low phosphate levels breathe better and get off mechanical ventilation more easily.

    Recruiting Peking Union Medical College · Beijing · NCT06754670

  • How phosphate therapy affects aging and the heart in XLH and HHRH

    This study tests how the dose and duration of phosphate therapy relate to kidney and heart health in people with XLH or HHRH who have low phosphate levels.

    Recruiting Early Phase 1 Yale University · New Haven, Connecticut · NCT03771105

  • Phosphorus-31 Imaging to Explore Phosphate Diabetes in XLH

    This study tests phosphorus-31 spectroscopy to see if muscle and phosphate levels differ in people with phosphate diabetes (like XLH) compared with healthy peers.

    Recruiting Hospices Civils de Lyon · Bron and 1 other locations · NCT06921720

  • Testing KK8123 in adults with X-linked hypophosphatemia

    This study is testing a new treatment called KK8123 to see if it can safely help adults with X-linked hypophosphatemia, a rare bone disease.

    Recruiting at 9 sites Phase 1/2 Kyowa Kirin Co., Ltd. · San Francisco, California and 9 other locations · NCT06525636

  • Registry for patients with X-Linked Hypophosphatemia

    This study is collecting information from people of all ages with X-Linked hypophosphatemia to better understand their treatment and health over time.

    Recruiting at 6 sites Kyowa Kirin Co., Ltd. · Brussels and 117 other locations · NCT03193476

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.