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HER2-positive Recurrent / Metastatic Breast CancerPhase 1NCT05252546

Effect of Montmorillonite Power or Loperamide on the Pharmacokinetics of Pyrotinib in Healthy Subjects

A Phase 1 study testing pyrotinib tablet, Montmorillonite Power and Loperamide in people with HER2-positive Recurrent / Metastatic Breast Cancer, run by Jiangsu HengRui Medicine Co., Ltd. at 1 site in China.

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

The study will assess the effect of anti-diarrhea drug Montmorillonite Power or Loperamide on the single dose pharmacokinetic parameters of pyrotinib in healthy Chinese subjects. The safety of pyrotinib alone and when co-administered with each drug will also be assessed. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
What is being tested?
pyrotinib tablet, Montmorillonite Power and Loperamide
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteChina
Study dates
8 Mar 2022to 2 Aug 2022
Phase
Phase 1
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 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Sign the informed consent before the trial, and fully understand the trial content, process and possible adverse reactions.
  • Able to complete the study as required by the protocol.
  • Healthy male and female subjects aged 18 to 45 years on the day of signing the informed consent form; appropriate proportion of subjects of different genders (no less than 3 of single gender) required in both groups A and B.
  • Male body weight ≥ 50 kg, female body weight ≥ 45 kg, and body mass index (BMI) within the range of 19 ~ 26 kg/m2.
  • Subjects of childbearing potential and their partners have no birth plan and voluntarily take effective contraception during the course of clinical trial until 3 months after the last dose (Female subjects are also required to use highly effective non-drug contraception starting two weeks before study entry and can use contraceptives after study completion).

Who cannot join

  • Blood donation no less than 400 mL or have blood transfusion within 3 months of dosing.
  • History of significant hypersensitivity, intolerance, or allergy to any drug compound or known allergy to pyrotinib, montmorillonite power, loperamide or the excipients;
  • History of drug abuse in the past 5 years, or positive for drug abuse screening;
  • History of alcoholism with alcohol consumption over 14 units per week; heavy smoker; and can't abstain from smoking and alcohol during the study
  • QTcF >470 msec for females or >450 msec for males by 12 lead electrocardiograph;
  • Left ventricular ejection fraction (LVEF) <50% by echocardiography
Show all 21Show fewer
  • Significant history or clinical manifestation of any neurological, cardiovascular, renal, gastrointestinal, pulmonary, respiratory, metabolic and musculoskeletal disorder, as determined by the Investigator (or designee).
  • Any surgery within 6 months before screening;
  • Intake of hepatotoxic drugs for a long time within 6 months before screening;
  • Participation in a clinical study involving administration of an investigational drug (new chemical entity) in the past 3 months;
  • Subjects who took any drugs that change liver enzymes activity within 28 days before dosing;
  • Subjects who took any prescription drugs, over-the-counter drugs or vitamins, health products or herbal medicine within 14 days before dosing;
  • Clinically significant abnormalities as determined by the Investigator (or designee) in general physical examination, vital signs, laboratory tests, etc.
  • Pregnant or lactating females
  • Positive serology test results for hepatitis B surface antigen, hepatitis C antibody, syphilis antibody or human immunodeficiency virus antibody.
  • Subjects who took any beverage or food containing grapefruit, xanthine, caffeine, or alcohol within 48 hours before dosing; strenuous exercise; or other factors which affect drug absorption, distribution, metabolism, excretion, etc
  • Subjects who need to avoid inhibiting intestinal peristalsis, such as patients with flatulence or constipation, or gastrointestinal symptoms such as diarrhea, dry mouth, abdominal distension, anorexia, gastrointestinal spasm, nausea, vomiting, as well as dizziness, headache and fatigue;
  • Those who have special requirements for diet and cannot comply with the diet and corresponding requirements provided by the trial;
  • Those who cannot tolerate venipuncture or with a history of needle-sickness and blood-sickness.
  • Those who have received a live vaccine 2 weeks prior to dosing or are scheduled to be vaccinated within 7 days after study completion.
  • Subjects who, in the opinion of the Investigator should not participate in this study.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Xiangya Hospital Central South University

    Changsha, Hunan, 410008

Other trials in China

About this study

Official title: A Single-centre, Open, Single-dose, Fixed-sequence Study to Investigate the Effect of Montmorillonite Power or Loperamide on the Pharmacokinetics of Pyrotinib in Healthy Chinese Adult Subjects

The study will assess the effect of anti-diarrhea drug Montmorillonite Power or Loperamide on the single dose pharmacokinetic parameters of pyrotinib in healthy Chinese subjects. The safety of pyrotinib alone and when co-administered with each drug will also be assessed.

Being tested
pyrotinib tablet, Montmorillonite Power, Loperamide
Medical subject headings
Breast Neoplasms

What participants receive

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

  • pyrotinib tabletDrug

    single oral dose of pyrotinib or co-administered with Montmorillonite Power or Loperamide

  • Montmorillonite PowerDrug

    3 g or one pouch of montmorillonite power 2 hours after pyrotinib administration

  • LoperamideDrug

    4 mg of loperamide with pyrotinib followed by 2mg every 2 hours for 2 times for a total of 8mg/day

Study groups in NCT05252546
Study groupRoleWhat they receive
pyrotinib alone, then pyrotinib + Montmorillonite Power or LoperamideExperimentalSequential treatments of pyrotinib alone followed by pyrotinib + Montmorillonite Power or Loperamide, with a washout period in between.
Receives: Drug: pyrotinib tablet; Drug: Montmorillonite Power; Drug: Loperamide

What is being measured

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

  1. Cmax of pyrotinib

    Maximum concentration (Cmax) of pyrotinib

    Measured: Day 1 and Day 9

  2. AUC of pyrotinib

    Area under the plasma concentration versus time curve of pyrotinib

    Measured: Day 1 and Day 9

Secondary outcomes (4)
  1. PK parameters (Tmax) of pyrotinib

    Measured: Day 1 and Day 9

  2. AEs and SAEs

    Adverse events and serious adverse events

    Measured: From the first drug administration to 7 days after the last drug administration

  3. PK parameters (CL/F) of pyrotinib

    Measured: Day 1 and Day 9

  4. PK parameters (Vz/F) of pyrotinib

    Measured: Day 1 and Day 9

Timeline

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

  1. First posted23 Feb 2022
  2. Study start8 Mar 2022
  3. Primary completion2 Aug 2022
  4. Study completion2 Aug 2022

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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
Pyrotinib alone and then combined with Montmorillonite Power or Loperamide
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05252546
Sponsor's protocol ID
HR-BLTN-DDI-07
Status last verified
Dec 2022
First submitted
16 Feb 2022
Last updated
23 Dec 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Wang Y, Li D, Zhang T, Xu S, Zhang Y, Zhao K, Li S, Shen K, Li X, Xu P. Evaluation of the pharmacokinetic interactions of montmorillonite powder or loperamide on pyrotinib in healthy volunteers. Front Pharmacol. 2025 May 12;16:1563556. doi: 10.3389/fphar.2025.1563556. eCollection 2025.

    PubMed 40433999

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing pyrotinib tablet, Montmorillonite Power and Loperamide in people with HER2-positive Recurrent / Metastatic Breast Cancer, run by Jiangsu HengRui Medicine Co., Ltd. at 1 site in China.

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 21 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 23 Dec 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Cmax of pyrotinib (time frame: Day 1 and Day 9). The study lists 2 primary outcomes in all. 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 NCT05252546, 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 23 Dec 2022; AzTrials last refreshed its copy on 26 Oct 2026.

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