CR-001 in Adult Participants With Locally Advanced or Metastatic Solid Tumors

Last updated: May 26, 2026
Sponsor: Crescent Biopharma, Inc.
Overall Status: Active - Recruiting

Phase

1/2

Condition

Neoplasm Metastasis

Treatment

CR-001

Clinical Study ID

NCT07335497
CR-001-101
2025-523590-42-00
  • Ages > 18
  • All Genders

Study Summary

The purpose of this study is to determine the safety and tolerability of monotherapy CR-001 and identify the maximum tolerated dose (MTD), and/or optimal biologic dose and Recommended Phase 2 Dose(s) (RP2D) in participants with locally advanced or metastatic solid tumors.

Eligibility Criteria

Inclusion

Key Inclusion Criteria

  • Life expectancy ≥ 3 months

  • Eastern Cooperative Oncology Group (ECOG) performance status score of 0 - 1

  • Adequate organ function and hematologic reserve based on laboratory parameters

  • Have measurable disease defined by RECIST v1.1

  • For Backfill and Dose Optimization: Willingness to provide recent archival tumor tissue sample or willingness to undergo biopsy

  • Tumor Indication specific inclusion criteria:

  • For dose escalation or backfill: progressing from, intolerant to, or ineligible for (due to unavailability or contraindication) local standard of care therapies and have one of the following locally advanced or metastatic tumor types:

  • Hepatocellular carcinoma

  • Biliary tract cancer

  • Endometrial carcinoma

  • Cervical cancer

  • Ovarian cancer

  • Gastric or gastroesophageal cancer

  • Colorectal cancer

  • Non-small cell lung cancer

Key Exclusion Criteria

  • Has malignancies other than disease under study within the past 3 years

  • Has conditions requiring treatment with clinically significant or increasing doses of systemic steroid therapy

  • Has not adequately recovered from recent major surgery

  • Has ongoing clinically significant toxicity related to prior therapy

  • Has active central nervous system (CNS) metastases

  • Has active autoimmune disease requiring systemic therapy in the past 2 years (replacement therapy is permitted)

  • Has a history of serious Grade ≥ 3 immune-related adverse event (irAE)

  • Has a history of noninfectious pneumonitis/interstitial lung disease

  • Has an active severe infection

  • Has received a live or attenuated vaccine within 30 days of the first dose

  • Has undergone prior allogeneic stem cell or solid organ transplantation

  • Has protocol-specified events related to gastrointestinal perforation, surgery, wound healing complications, and bleeding

  • Has clinically significant cardiovascular disease NOTE: Other protocol defined Inclusion and Exclusion criteria may apply.

Study Design

Total Participants: 290
Treatment Group(s): 1
Primary Treatment: CR-001
Phase: 1/2
Study Start date:
February 17, 2026
Estimated Completion Date:
February 28, 2029

Study Description

The study will initially comprise 3 parts: dose escalation, backfill, and dose optimization cohorts. The study will follow a stepwise approach, beginning with a typical dose escalation in participants with selected indications of advanced solid tumors. Additional participants will enroll in the backfill part at select dose levels that have been previously cleared for safety by the safety review committee. In dose optimization, participants will be randomized to one of two CR-001 dose levels.

All participants will undergo a screening period, a treatment period of up to 2 years, a safety follow-up period, and long-term efficacy and survival follow-up. During the treatment period, participants will undergo clinical and safety assessments including disease assessment scans and blood laboratory safety, pharmacokinetic, and pharmacodynamic assessments. After treatment ends, disease scans will continue until disease progression, and long-term follow-up visits will be conducted by telephone every 3 months.

Connect with a study center

  • Clinical Study Site

    South Brisbane, Queensland 4101
    Australia

    Active - Recruiting

  • Clinical Study Site

    Seoul, Seoul 03080
    South Korea

    Active - Recruiting

  • Clinical Study Site

    Denver, Colorado 80218
    United States

    Active - Recruiting

  • Clinical Study Site

    Denver 5419384, Colorado 5417618 80218
    United States

    Site Not Available

  • Clinical Study Site

    Orlando, Florida 32827
    United States

    Active - Recruiting

  • Clinical Study Site

    Sarasota, Florida 34236
    United States

    Active - Recruiting

  • Clinical Study Site

    Orlando 4167147, Florida 4155751 32827
    United States

    Site Not Available

  • Clinical Study Site

    Sarasota 4172131, Florida 4155751 34236
    United States

    Site Not Available

  • Clinical Study Site

    Grand Rapids, Michigan 49546
    United States

    Active - Recruiting

  • Clinical Study Site

    Columbus, Ohio 43210
    United States

    Active - Recruiting

  • Clinical Study Site

    Nashville, Tennessee 37203
    United States

    Active - Recruiting

  • Clinical Study Site

    Nashville 4644585, Tennessee 4662168 37203
    United States

    Site Not Available

  • Clinical Study Site

    Dallas, Texas 75230
    United States

    Active - Recruiting

  • Clinical Study Site

    San Antonio, Texas 78229
    United States

    Active - Recruiting

  • Clinical Study Site

    Dallas 4684888, Texas 4736286 75230
    United States

    Site Not Available

  • Clinical Study Site

    West Valley City, Utah 84119
    United States

    Active - Recruiting

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