Clin2
NCT05744687Possibly a fitRecruiting

Letrozole plus SPH4336 versus letrozole alone for breast cancer

Locally Advanced or Metastatic Breast Cancer

Treatments studied

Part of Cancer, Skin clinical trials.

This study tests whether adding SPH4336 to letrozole works better than letrozole plus a placebo for treating hormone-receptor–positive, HER2-negative breast cancer in people starting first-line treatment. It may help slow cancer growth more effectively if the added drug is beneficial.

Summary written for real people, not researchers, by Clin2.

Phase
Phase 2/Phase 3
Enrollment
374 people
Ages
18 years to 75 years
Study type
Interventional

Who can take part

  • You must voluntarily join and sign the informed consent form
  • You are female, age 18 to 75
  • You have breast cancer that is hormone-receptor positive and HER2 negative, and it can’t be treated with surgery or other local procedures
  • You have not had prior treatment with anti-cancer medicines for advanced/metastatic disease
  • You must have at least one visible measurable tumor area the study can track, plus adequate blood/organ test results

View the official record on ClinicalTrials.gov

Quick eligibility check

Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.

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