NCT04520139

Brief Summary

This is a phase I, dose-escalation and phase II dose-expansion clinical trial determining the maximum tolerated dose (MTD) and safety and tolerability of adding N-Acetyl-Cysteine (NAC) to ovarian cancer patients who are receiving a platinum-based therapy (PBT). This study will investigate whether NAC will mitigate chemotherapy-related cognitive impairment (CRCI).

Trial Health

65
Monitor

Trial Health Score

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

Enrollment
102

participants targeted

Target at P75+ for phase_1 ovarian-cancer

Timeline
17mo left

Started May 2026

Shorter than P25 for phase_1 ovarian-cancer

Status
not yet recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress8%
May 2026Dec 2027

First Submitted

Initial submission to the registry

August 17, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 20, 2020

Completed
5.7 years until next milestone

Study Start

First participant enrolled

May 1, 2026

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

April 29, 2026

Status Verified

April 1, 2026

Enrollment Period

7 months

First QC Date

August 17, 2020

Last Update Submit

April 23, 2026

Conditions

Keywords

Chemotherapy-Related Cognitive Impairments

Outcome Measures

Primary Outcomes (2)

  • Maximum Tolerated Dose of N-Acetyl-Cysteine in Ovarian Cancer Patients Receiving Platinum-Based Therapy

    Determination of the maximum tolerated dose (MTD) will be utilized to evaluate the safety and tolerability of adding N-Acetyl-Cysteine (NAC) in ovarian cancer patients who are also receiving platinum-based therapy (PBT), using a Phase I, dose-escalating design.

    From the start date of treatment until 6 months after removal of treatment due to toxicity, termination of study or withdrawal of treatment, whichever came first.

  • Recommended Phase 2 Dose for NAC administered with PBT

    Determination of the recommended Phase 2 dose (RP2D) will be utilized to evaluate the safety and tolerability of adding NAC to PBT.

    From the start date of treatment until 6 months after removal of treatment due to toxicity, termination of study or withdrawal of treatment, whichever came first.

Study Arms (2)

Phase 1 Dose Escalation

EXPERIMENTAL

Patients will receive NAC beginning at Cohort 1. If, at a given dose, none of the 3 patients shows a dose-limiting toxicity during the first cycle of PBT, then the dose is escalated 1 step for subsequent subjects. If, at a given dose, only 1 of 3 shows a dose-limiting toxicity, then up to 3 additional participants will be enrolled at that dose.If, at a given dose, the first 2, or any 2 of 3 subjects show a dose-limiting toxicity, then the dose will be de-escalated 1 step for future participants. At a dose where enrollment is expanded to between 4 and 6, if only 1 of 6 subjects shows a dose-limiting toxicity, then the dose will be escalated 1 step for future participants. However, if 2 or more of 4, 5, or 6participants show a dose-limiting toxicity, then the dose will be reduced one step for future participants. The maximum tolerated dose is defined as the highest dose not requiring deescalation. This is the dose to be used for the NAC arm of Phase II study.

Drug: N-Acetyl-Cysteine

Phase 2 Dose Expansion

EXPERIMENTAL

Patients will be randomized to receive NAC at the maximum tolerated dose or placebo.

Drug: N-Acetyl-CysteineOther: Placebo

Interventions

Given PO

Also known as: NAC Sustain, NAC
Phase 1 Dose EscalationPhase 2 Dose Expansion
PlaceboOTHER

Given PO

Phase 2 Dose Expansion

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsThis study targets post-menopausal women with a histologically confirmed diagnosis of stage III-IV eipithelial ovarian cancer, fallopian tube, or primary peritoneal cancer
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Post-menopausal females (as defined by lack of menstruation for 12 months or status post oophorectomy)
  • Histologic or pathologic diagnosis of stage III-IV epithelial ovarian, fallopian tube, or primary peritoneal cancer
  • Eastern Cooperative Oncology Group (ECOG) ≤2
  • Life expectancy \> 1 year
  • Status post cytoreductive surgery for ovarian cancer or with planned cytoreductive surgery if treated with neoadjuvant chemotherapy
  • Prescribed a minimum of six cycles of platinum-based chemotherapy
  • Adequate organ function as defined below:
  • Hemoglobin \> 9 g/dL
  • Leukocytes \>1,500/mcl
  • Absolute Neutrophil Count \> 1,000/mcL
  • Platelets \> 125,00/mcL
  • total bilirubin Within normal institutional limits
  • Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) \< 2.5 x institutional upper limit of normal
  • Serum creatinine \< 1.5 mg/dL.

You may not qualify if:

  • Prior history of any cancer (other than non-melanoma skin cancer)
  • Chemotherapy, radiation therapy, or erythropoietin treatment within the last 6 months
  • Prior severe head injury
  • Has a history of dementia or other neurodegenerative disorders
  • Has an uncontrolled, treatment-resistant depression or other severe psychiatric illnesses
  • Presence of known brain metastases
  • Has an active infection requiring treatment
  • Known immunosuppressive disease
  • Has active systemic autoimmune diseases such as lupus
  • Receipt of systemic immunosuppressive therapy
  • Known human immunodeficiency virus (HIV) infection, hepatitis B or hepatitis C
  • Pregnant of breastfeeding.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Ovarian NeoplasmsCognitive DysfunctionChemotherapy-Related Cognitive Impairment

Interventions

Acetylcysteine

Condition Hierarchy (Ancestors)

Endocrine Gland NeoplasmsNeoplasms by SiteNeoplasmsOvarian DiseasesAdnexal DiseasesGenital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital Neoplasms, FemaleUrogenital NeoplasmsGenital DiseasesEndocrine System DiseasesGonadal DisordersCognition DisordersNeurocognitive DisordersMental DisordersDrug-Related Side Effects and Adverse ReactionsChemically-Induced Disorders

Intervention Hierarchy (Ancestors)

CysteineAmino Acids, SulfurSulfur CompoundsOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and Proteins

Study Officials

  • Daniela Bota, MD, PhD

    Chao Family Comprehensive Cancer Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Chao Family Comprehensive Cancer Center University of California, Irvine

CONTACT

University of California Irvine Medical

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Phase 1 will be open label. Phase 2 will be be double-blinded.
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Phase 1 will be a dose-escalating design. Phase 2 will be a randomized, double-blinded, placebo-controlled study design
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

August 17, 2020

First Posted

August 20, 2020

Study Start

May 1, 2026

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2027

Last Updated

April 29, 2026

Record last verified: 2026-04