NCT06931626

Brief Summary

This is an open-label study of NMS-03305293 with Temozolomide (TMZ) in patients with Small Cell Lung Cancer (SCLC). The aim of this study is to determine the safety and tolerability, as well as to evaluate the anti-tumor efficacy and pharmacokinetics of NMS-03305293 in combination with TMZ.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for phase_1

Timeline
10mo left

Started Aug 2025

Geographic Reach
1 country

2 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress47%
Aug 2025Feb 2027

First Submitted

Initial submission to the registry

April 4, 2025

Completed
13 days until next milestone

First Posted

Study publicly available on registry

April 17, 2025

Completed
4 months until next milestone

Study Start

First participant enrolled

August 15, 2025

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2026

Expected
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2027

Last Updated

November 12, 2025

Status Verified

November 1, 2025

Enrollment Period

1.2 years

First QC Date

April 4, 2025

Last Update Submit

November 11, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Participants with Adverse Events (AEs)

    Evaluation of type, frequency, severity (graded using the National Cancer Institute Common Terminology Criteria for Adverse Events \[NCI CTCAE\] Version 5.0), duration of AEs, electrocardiogram (ECG) and laboratory abnormalities

    Screening (Day ≤28) up to 28-day follow-up after end of treatment (Approximately 12 months)

Secondary Outcomes (16)

  • Overall Response Rate (ORR)

    From the date of first response up to data cut-off (approximately 12 months)

  • Duration of response (DoR)

    From the date of first response up to data cut-off (approximately 12 months)

  • Progression-free survival (PFS)

    From the date of treatment initiation up to data cut-off (approximately 12 months)

  • Overall survival (OS)

    From the date of treatment initiation up to data cut-off (approximately 12 months)

  • Maximum plasma concentration (Cmax) of NMS-03305293

    Cycle 1 - Day 1 and Day 5. Each cycle is 28 days

  • +11 more secondary outcomes

Study Arms (1)

NMS-03305293 and Temozolomide

EXPERIMENTAL

NMS-03305293 will be dosed orally on days 1-28 of each 28-day cycle, at 100 mg twice daily. Temozolomide will be dosed orally on days 1-5 of each 28-day cycle, at 150 mg/m\^2, based on patients' body surface area.

Drug: NMS-03305293Drug: Temozolomide

Interventions

Route of administration: Oral

NMS-03305293 and Temozolomide

Route of administration: Oral Commercially available Temozolomide

NMS-03305293 and Temozolomide

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Histologically confirmed extensive-stage Small Cell Lung Cancer (SCLC); must have failed prior front-line platinum-based therapy including immune therapy with relapse within 6 months followed by failed tarlatamab therapy, if available and appropriate, and no more than 3 total prior lines of systemic therapy (therapy terminated due to toxicity or drug shortage, in the absence of Response Evaluation Criteria In Solid Tumors (RECIST) v1.1 progression, will be considered part of the same line). Sponsor may opt to allow history of treatment free interval from front-line longer than 6 months .
  • Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2.
  • Patient must have progressed radiographically on or after their most recent line of anticancer therapy and have measurable disease as defined by RECIST v1.1 (radiologically measured by the Investigator).
  • The interval from prior antitumor treatment should be at least 2 weeks or 5 half-lives, whichever longer.
  • All acute toxic effects (excluding alopecia) of any prior therapy must have resolved to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0 Grade ≤ 1 or to the baseline laboratory values as defined in the protocol.
  • Patients must use highly effective contraception or true abstinence.
  • Ability to swallow capsules intact (without chewing, crushing, or opening).

You may not qualify if:

  • Current enrollment in another interventional clinical trial.
  • Current treatment with other anticancer agents or devices.
  • Major surgery, other than surgery for recurrent SCLC, within 4 weeks prior to treatment start.
  • Patients with prior wide-field radiotherapy (RT) affecting at least 20 percent of the bone marrow.
  • Histologically transformed SCLC, i.e. tumors initially diagnosed as Non-Small Cell Lung Cancer (NSCLC) or mixed lung adenocarcinoma
  • Known paraneoplastic syndrome uncontrolled or that required therapeutic changes (either new/acute or chronic) in the 14 days prior to study entry
  • Use of full-dose anticoagulants unless the International Normalized Ratio (INR) or a Partial Thromboplastin Time (PTT) is within therapeutic limits (according to the medical standard in the institution) and the patient has been on a stable dose of anticoagulants for at least 2 weeks before enrollment.
  • Treatment with concomitant medications known to be sensitive substrates of CYP2D6 and CYP2C19 that cannot be replaced with another treatment.
  • Treatment with systemic immune modulators such as corticosteroids at prednisone equivalent dose of \> 10 mg/day, cyclosporine and tacrolimus or radiotherapy within 28 days before treatment start.
  • Breast-feeding women or women planning to breast feed during the study or within 3 months after study treatment.
  • Known hypersensitivity to any component of NMS-03305293 or Temozolomide (TMZ) drug formulations.
  • Known active, life-threatening or clinically significant uncontrolled systemic infection (bacterial, fungal, viral including Human Immunodeficiency Virus \[HIV\] positivity or Hepatitis B Virus \[HBV\] or Hepatitis B Virus \[HCV\] infections) requiring systemic treatment; HIV or Acquired Immune Deficiency Syndrome (AIDS)-related illness are allowed as long as controlled more than 6 months to undetectable on anti-HIV medications.
  • Patients with QT interval using Fridericia standard (QTcF) interval \>450 milliseconds or with risk factors for torsade de pointes (e.g., uncontrolled heart failure, uncontrolled hypokalemia, history of prolonged QTc interval or family history of long QT syndrome). For patients receiving treatment with concomitant medications known to prolong the QTc interval, replacement with another treatment prior to enrollment is mandatory. If concomitant use of anti-emetics is considered essential for the care of the patients, follow instruction in this protocol
  • Known active gastrointestinal disease (e.g., documented gastrointestinal ulcer, Crohn's disease, ulcerative colitis, or short gut syndrome) or other malabsorption syndromes or structural issues or ulcer that would impact on drug absorption.
  • Any of the following in the previous 6 months: myocardial infarction, unstable angina, coronary/peripheral artery bypass graft, symptomatic congestive heart failure, cerebrovascular accident or transient ischemic attack, pulmonary embolism, deep vein thrombosis, active bleeding disorder and interstitial lung disease.
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

RECRUITING

Tennessee Oncology, PLLC

Nashville, Tennessee, 37203, United States

RECRUITING

MeSH Terms

Conditions

Small Cell Lung Carcinoma

Interventions

Temozolomide

Condition Hierarchy (Ancestors)

Carcinoma, BronchogenicBronchial NeoplasmsLung NeoplasmsRespiratory Tract NeoplasmsThoracic NeoplasmsNeoplasms by SiteNeoplasmsLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

DacarbazineTriazenesOrganic ChemicalsImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 4, 2025

First Posted

April 17, 2025

Study Start

August 15, 2025

Primary Completion (Estimated)

October 30, 2026

Study Completion (Estimated)

February 28, 2027

Last Updated

November 12, 2025

Record last verified: 2025-11

Locations