Testing NPX267 for patients with solid tumors expressing HHLA2/B7-H7

A Phase 1a/1b, Dose-Escalation/Dose-Expansion Study of NPX267 in Subjects With Solid Tumors Known to Express HHLA2/B7-H7

Phase 1 Interventional NextPoint Therapeutics, Inc. · NCT05958199

This study is testing a new drug called NPX267 to see if it can help people with certain types of solid tumors that express a specific protein, by boosting their immune response against the cancer.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment131 (estimated)
Ages18 Years and up
SexAll
SponsorNextPoint Therapeutics, Inc. Industry-sponsored
Drugs / interventionsprednisone
Locations7 sites (Baltimore, Maryland and 6 other locations)
Trial IDNCT05958199 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates NPX267, an antibody drug designed to target the inhibitory receptor HHLA2/B7-H7, which may help overcome immune evasion in tumors. The study is divided into two parts: a dose escalation phase to determine the appropriate dosage and a dose expansion phase to assess the drug's effectiveness in patients with specific solid tumors. Participants will receive intravenous infusions of NPX267 every three weeks, and their response will be monitored through imaging and blood tests to evaluate the drug's pharmacokinetics and safety. The trial focuses on patients with various types of metastatic solid tumors that express HHLA2.

Who should consider this trial

Good fit: Ideal candidates include patients with recurrent, metastatic solid tumors that are refractory to standard therapies and express HHLA2.

Not a fit: Patients with unresolved toxicity from previous treatments or known brain metastases may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with solid tumors that currently have limited treatment options.

How similar studies have performed: While this approach is novel, similar studies targeting immune evasion mechanisms have shown promise in other contexts.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histologically or cytologically confirmed recurrent, metastatic solid tumor refractory to standard of care therapy in one of the following indications: Part 1a: non-small cell lung carcinoma (NSCLC), renal cell carcinoma (RCC), colorectal carcinoma (CRC), cholangiocarcinoma (CCA), pancreatic cancer (PDAC), urothelial carcinoma (UCC), gastric/gastroesophageal carcinoma, triple negative breast carcinoma, endometrial carcinoma, cervical cancer, osteosarcoma, and prostate cancer
* Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1
* Normal bone marrow, kidney and liver function
* Willing to use highly effective contraceptive measures throughout the trial

Exclusion Criteria:

* Have any unresolved toxicity of Grade ≥ 2 from previous anti-cancer treatment, except for alopecia, chronic neuropathy \> 6 months, or changes in skin pigmentation
* Have known or suspected brain metastases, unless they are clinically stable
* Known autoimmune disease requiring immunosuppressive treatment requiring the equivalent of more than 10 mg prednisone daily
* History of grade 3 immune-related pneumonitis or colitis

Where this trial is running

Baltimore, Maryland and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Metastatic Malignant NeoplasmB7-H7/HHLA2Non-small cell lung carcinomarenal cell carcinomacolorectal carcinomacholangiocarcinomapancreatic cancerurothelial carcinoma
Last reviewed 2026-06-09 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.