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Dose-finding Study of Metformin With Chemoradiation in Locally Advanced Head and Neck Squamous Cell Carcinoma

A Phase I Dose-finding Study of Metformin in Combination With Concurrent Cisplatin and Radiation in Patients With Locally Advanced Head and Neck Squamous Cell Carcinoma

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02325401
Enrollment
20
Registered
2014-12-25
Start date
2015-05-11
Completion date
2020-02-21
Last updated
2020-06-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Head and Neck Cancer

Brief summary

The purpose of this research study is to test the safety of adding metformin to standard of care. The standard of care treatment will be cisplatin once every 3 weeks for 3 treatments and radiation for 7 weeks. Metformin is a medication that is currently used to treat diabetes. Increasing amounts of metformin will be given to groups of patients already receiving normal treatment for their cancer to see if metformin causes any good effects by killing your cancer or bad effects (side effects).

Detailed description

Patients were registered by contacting the University of Cincinnati Clinical Trials Office. Patients must be registered and consent obtained prior to initiation of any protocol therapy. Treatment was administered on an outpatient basis. Adverse events and potential risks for metformin and cisplatin and radiation were reported. Patients must have screening labs performed within 2 weeks of start of treatment including a complete blood count, liver function tests, metabolic renal panel including magnesium, vitamin B12 level, lactate, and C-peptide. Renal panel must be verified within 24 hours of cisplatin administration. They must fulfill inclusion criteria. The recommended starting dose of metformin in diabetic patients is 500mg orally twice a day which can be escalated by 500mg increments weekly as tolerated with the maximum recommended daily dose of 2550mg. Cisplatin was given either before or after the radiation therapy fraction that is given on the same day. If radiation is held for more than 2 days (for any reason), cisplatin may be held as well until radiation resumes. The prescribed radiotherapy dose was be 70 Gy in 2 Gy once-daily fraction size (total of 35 fractions).

Interventions

DRUGMetformin

Escalating doses of 2000mg, 2550 mg and 3000mg. Starting 1 week prior to the initiation of chemoradiation and ending the final day of chemo or radiation.

DRUGCisplatin

Dosed at 100mg/m2 on days 1, 22, and 43

RADIATIONRadiation Therapy

70 Gy in 2 Gy once daily fractions of 35 fractions

Sponsors

University of Cincinnati
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Locally advanced squamous cell cancer of the head and neck, stage III or IV disease (T1-2, N2a-3 or T3-4). * Measurable disease * No prior chemotherapy or radiation for head and neck squamous cell cancer * Life expectancy of greater than 3 months. * Adequate labs

Exclusion criteria

* Known metastatic disease. * Nasopharyngeal carcinoma * History of allergic reactions attributed to metformin or other agents used in study. * Known diagnosis of diabetes requiring insulin for control. * Administration of metformin within last 4 weeks.

Design outcomes

Primary

MeasureTime frameDescription
Maximum Tolerated Dose (MTD) of Metformin in Combination With Concurrent Cisplatin and Radiation24 monthsCohorts of patients received escalating doses of metformin (2000 mg, 2550 mg, or 3000 mg divided into daily doses) with a 7-day to 14-day lead-in prior to CRT based on the modified toxicity probability interval design to allow for possible re-escalation after previous de-escalation and to maximize the ability to identify the maximum tolerated dose (MTD). Patients continued to receive metformin for the duration of CRT as tolerated.

Secondary

MeasureTime frameDescription
Number of Participants Experiencing No-Reoccurrence at 36 Months36 monthsPatients were evaulated at 36 months to determine if there was recurrence of disease.
Number of Participants With Adverse Events36 monthsAdverse event means any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. Adverse event means any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related.Any participants with any adverse event at any grade was included. Adverse events were collected during the on study period of 21 weeks up to three months after the study for a total of 34 weeks.
Progression Free Survival24 months2-year progression free survival
Overall Survival24 months2 year overall survival

Countries

United States

Participant flow

Recruitment details

Patients were 18 years or old, with newly diagnosis LAHNSCC and ECOG rating of better than or equal to 1, with adequate organ function. Individuals were excluded if they had a diagnosis of: nasopharyngeal cancer, metastatic disease, diabetes requiring insulin, or receipt of metformin with in the last 4 weeks, or history of intercurrent illness.

Participants by arm

ArmCount
Metformin With Chemoradiation
Metformin administered orally daily to start one week prior to Cisplatin and Radiation Therapy. Metformin dose is escalating. Metformin: Escalating doses of 2000mg, 2550 mg and 3000mg. Starting 1 week prior to the initiation of chemoradiation and ending the final day of chemo or radiation. Cisplatin: Dosed at 100mg/m2 on days 1, 22, and 43 Radiation Therapy: 70 Gy in 2 Gy once daily fractions of 35 fractions
18
Total18

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyWithdrawal by Subject011

Baseline characteristics

CharacteristicMetformin With Chemoradiation
Age, Continuous
Metformin (2000mg) With Chemoradiation
54 Years
Age, Continuous
Metformin (2550mg) With Chemoradiation
55.5 Years
Age, Continuous
Metformin (3000mg) With Chemoradiation
53 Years
Ethnicity (NIH/OMB)
Metformin (2000mg) With Chemoradiation
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Metformin (2000mg) With Chemoradiation
Not Hispanic or Latino
4 Participants
Ethnicity (NIH/OMB)
Metformin (2000mg) With Chemoradiation
Unknown or Not Reported
0 Participants
Ethnicity (NIH/OMB)
Metformin (2550mg) With Chemoradiation
Hispanic or Latino
8 Participants
Ethnicity (NIH/OMB)
Metformin (2550mg) With Chemoradiation
Not Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Metformin (2550mg) With Chemoradiation
Unknown or Not Reported
0 Participants
Ethnicity (NIH/OMB)
Metformin (3000mg) With Chemoradiation
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Metformin (3000mg) With Chemoradiation
Not Hispanic or Latino
4 Participants
Ethnicity (NIH/OMB)
Metformin (3000mg) With Chemoradiation
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
Metformin (2000mg) With Chemoradiation
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Metformin (2000mg) With Chemoradiation
Asian
0 Participants
Race (NIH/OMB)
Metformin (2000mg) With Chemoradiation
Black or African American
0 Participants
Race (NIH/OMB)
Metformin (2000mg) With Chemoradiation
More than one race
0 Participants
Race (NIH/OMB)
Metformin (2000mg) With Chemoradiation
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Metformin (2000mg) With Chemoradiation
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
Metformin (2000mg) With Chemoradiation
White
6 Participants
Race (NIH/OMB)
Metformin (2550mg) With Chemoradiation
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Metformin (2550mg) With Chemoradiation
Asian
0 Participants
Race (NIH/OMB)
Metformin (2550mg) With Chemoradiation
Black or African American
0 Participants
Race (NIH/OMB)
Metformin (2550mg) With Chemoradiation
More than one race
0 Participants
Race (NIH/OMB)
Metformin (2550mg) With Chemoradiation
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Metformin (2550mg) With Chemoradiation
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
Metformin (2550mg) With Chemoradiation
White
8 Participants
Race (NIH/OMB)
Metformin (3000mg) With Chemoradiation
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Metformin (3000mg) With Chemoradiation
Asian
0 Participants
Race (NIH/OMB)
Metformin (3000mg) With Chemoradiation
Black or African American
2 Participants
Race (NIH/OMB)
Metformin (3000mg) With Chemoradiation
More than one race
0 Participants
Race (NIH/OMB)
Metformin (3000mg) With Chemoradiation
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Metformin (3000mg) With Chemoradiation
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
Metformin (3000mg) With Chemoradiation
White
2 Participants
Region of Enrollment
United States
18 participants
Sex: Female, Male
Metformin (2000mg) With Chemoradiation
Female
1 Participants
Sex: Female, Male
Metformin (2000mg) With Chemoradiation
Male
5 Participants
Sex: Female, Male
Metformin (2550mg) With Chemoradiation
Female
0 Participants
Sex: Female, Male
Metformin (2550mg) With Chemoradiation
Male
8 Participants
Sex: Female, Male
Metformin (3000mg) With Chemoradiation
Female
2 Participants
Sex: Female, Male
Metformin (3000mg) With Chemoradiation
Male
2 Participants
Tobacco Users
Metformin (2000mg) With Chemoradiation
3 Participants
Tobacco Users
Metformin (2550mg) With Chemoradiation
7 Participants
Tobacco Users
Metformin (3000mg) With Chemoradiation
2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
1 / 60 / 80 / 4
other
Total, other adverse events
6 / 67 / 84 / 4
serious
Total, serious adverse events
6 / 61 / 81 / 4

Outcome results

Primary

Maximum Tolerated Dose (MTD) of Metformin in Combination With Concurrent Cisplatin and Radiation

Cohorts of patients received escalating doses of metformin (2000 mg, 2550 mg, or 3000 mg divided into daily doses) with a 7-day to 14-day lead-in prior to CRT based on the modified toxicity probability interval design to allow for possible re-escalation after previous de-escalation and to maximize the ability to identify the maximum tolerated dose (MTD). Patients continued to receive metformin for the duration of CRT as tolerated.

Time frame: 24 months

Population: Proportion of the study sample that were evaulable.

ArmMeasureValue (NUMBER)
Metformin (2000mg) With ChemoradiationMaximum Tolerated Dose (MTD) of Metformin in Combination With Concurrent Cisplatin and RadiationNA mg
Metformin (2550mg) With ChemoradiationMaximum Tolerated Dose (MTD) of Metformin in Combination With Concurrent Cisplatin and RadiationNA mg
Metformin (3000mg) With ChemoradiationMaximum Tolerated Dose (MTD) of Metformin in Combination With Concurrent Cisplatin and RadiationNA mg
Secondary

Number of Participants Experiencing No-Reoccurrence at 36 Months

Patients were evaulated at 36 months to determine if there was recurrence of disease.

Time frame: 36 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Metformin (2000mg) With ChemoradiationNumber of Participants Experiencing No-Reoccurrence at 36 Months6 Participants
Metformin (2550mg) With ChemoradiationNumber of Participants Experiencing No-Reoccurrence at 36 Months8 Participants
Metformin (3000mg) With ChemoradiationNumber of Participants Experiencing No-Reoccurrence at 36 Months4 Participants
Secondary

Number of Participants With Adverse Events

Adverse event means any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. Adverse event means any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related.Any participants with any adverse event at any grade was included. Adverse events were collected during the on study period of 21 weeks up to three months after the study for a total of 34 weeks.

Time frame: 36 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Metformin (2000mg) With ChemoradiationNumber of Participants With Adverse Events6 Participants
Metformin (2550mg) With ChemoradiationNumber of Participants With Adverse Events7 Participants
Metformin (3000mg) With ChemoradiationNumber of Participants With Adverse Events4 Participants
Secondary

Overall Survival

2 year overall survival

Time frame: 24 months

ArmMeasureValue (NUMBER)
Metformin (2000mg) With ChemoradiationOverall Survival5 participants
Metformin (2550mg) With ChemoradiationOverall Survival8 participants
Metformin (3000mg) With ChemoradiationOverall Survival4 participants
Secondary

Progression Free Survival

2-year progression free survival

Time frame: 24 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Metformin (2000mg) With ChemoradiationProgression Free Survival6 Participants
Metformin (2550mg) With ChemoradiationProgression Free Survival8 Participants
Metformin (3000mg) With ChemoradiationProgression Free Survival4 Participants

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026