18 and older, any sex, with Uterine Cervical Neoplasms or Endometrial Neoplasms. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Percent Difference From Baseline IMRT Plan (%)Primary· Baseline (pre-treatment)
The difference in volume of bone marrow receiving radiation using a bone-marrow-sparing radiation plan compared to a standard radiation plan (IMRT), expressed as a percentage. Both plans are patient-specific. Bone-marrow is identified using the baseline FLT PET/CT obtained pre-imaging. Active bone marrow is considered to have an uptake value (SUV) of 2, 3, or 4. The standard IMRT plan was created using the criteria of the National Cancer Institute's Radiation Therapy Oncology Group study RTOG-0418. Radiation doses evaluated are 5 Gray, 10 Gray, 20 Gray, and 30 Gray. The change in dose to tumor
% difference, volume receiving 5 Gray
Group
Value
95% CI
Basline FLT PET/CT (All Subjects)
-4.7
± 3.3
% difference, volume receiving 10 Gray
Group
Value
95% CI
Basline FLT PET/CT (All Subjects)
-9.3
± 4.2
% difference, volume receiving 20 Gray
Group
Value
95% CI
Basline FLT PET/CT (All Subjects)
-14.2
± 4.1
% difference, volume receiving 30 Gray
Group
Value
95% CI
Basline FLT PET/CT (All Subjects)
-13.4
± 7.6
% difference, dose to target (tumor) volume
Group
Value
95% CI
Basline FLT PET/CT (All Subjects)
-0.1
± 0.4
Chemotherapy ComplianceSecondary· At 24 months
The number of participants who had chemotherapy withheld at least once for low blood counts.
Group
Value
95% CI
FLT PET/CT
7
Number of Participants With Standardized Toxicity Severity Grades for White Blood Cell CountsSecondary· baseline, weekly during radiation treatment for up to 5 weeks, 30 days and 1 year after treatment
White blood cell counts measurements expressed in standardized toxicity severity grades (Common Terminology Criteria for Adverse Events, v4.03) measured weekly during combined chemotherapy and radiation therapy treatment and then once at 30 day follow-up and at 1 year follow-up
Baseline (pre-treatment)
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
27
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 1
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
27
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 2
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
15
Bone-marrow Sparing Radiation Therapy (IMRT)
7
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Bone-marrow Sparing Radiation Therapy (IMRT)
3
Therapy, week 3
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
13
Bone-marrow Sparing Radiation Therapy (IMRT)
5
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Therapy, week 4
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
13
Bone-marrow Sparing Radiation Therapy (IMRT)
5
Bone-marrow Sparing Radiation Therapy (IMRT)
4
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Therapy, week 5
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
10
Bone-marrow Sparing Radiation Therapy (IMRT)
3
Bone-marrow Sparing Radiation Therapy (IMRT)
3
Bone-marrow Sparing Radiation Therapy (IMRT)
1
30 days post-therapy
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
20
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
1 year post-therapy
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Number of Participants With Standardized Toxicity Severity Grades for Decreased Platelet Counts.Secondary· baseline, weekly during radiation treatment for up to 5 weeks, 30 days and 1 year after treatment
Platelet cell counts measurements expressed in standardized toxicity severity grades (Common Terminology Criteria for Adverse Events, v4.03) measured once weekly during combined chemotherapy and radiation therapy, then once at 30 day follow-up, and once at 1 year follow-up
Baseline (pre-treatment)
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
27
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 1
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
27
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 2
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
9
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Therapy, week 3
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
12
Bone-marrow Sparing Radiation Therapy (IMRT)
6
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Therapy, week 4
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
15
Bone-marrow Sparing Radiation Therapy (IMRT)
6
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 5
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
9
Bone-marrow Sparing Radiation Therapy (IMRT)
7
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Bone-marrow Sparing Radiation Therapy (IMRT)
0
30 days post-therapy
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
17
Bone-marrow Sparing Radiation Therapy (IMRT)
4
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Bone-marrow Sparing Radiation Therapy (IMRT)
0
1 year post-therapy
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Number of Participants With Standardized Toxicity Severity Grades for Decreased Absolute Neutrophil Counts (ANCs)Secondary· baseline, weekly during radiation treatment for up to 5 weeks, 30 days and 1 year after treatment
Absolute neutrophil counts (ANCs) measurements expressed in standardized toxicity severity grades (Common Terminology Criteria for Adverse Events, v4.03) measured once weekly during combined chemotherapy and radiation therapy, then once at 30 day follow-up, and once at 1 year follow-up
Baseline (pre-treatment)
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
27
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 1
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
25
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 2
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
8
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Therapy, week 3
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
4
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Therapy, week 4
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
17
Bone-marrow Sparing Radiation Therapy (IMRT)
5
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 5
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
13
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
30 days post-therapy
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
21
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
1 year post-therapy
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Number of Participants With Standardized Toxicity Severity Grades for Decreased Lymphocyte Counts.Secondary· baseline, weekly during radiation treatment for up to 5 weeks, 30 days and 1 year after treatment
Lymphocyte counts measurements expressed in standardized toxicity severity grades (Common Terminology Criteria for Adverse Events, v4.03) measured once weekly during combined chemotherapy and radiation therapy, then once at 30 day follow-up, and once at 1 year follow-up
Baseline (pre-treatment)
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
27
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 1
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
25
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 2
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
8
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Therapy, week 3
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
4
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Therapy, week 4
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
17
Bone-marrow Sparing Radiation Therapy (IMRT)
5
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Therapy, week 5
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
13
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
30 days post-therapy
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
21
Bone-marrow Sparing Radiation Therapy (IMRT)
1
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
1 year post-therapy
Group
Value
95% CI
Bone-marrow Sparing Radiation Therapy (IMRT)
16
Bone-marrow Sparing Radiation Therapy (IMRT)
2
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Bone-marrow Sparing Radiation Therapy (IMRT)
0
Adverse events — posted to ClinicalTrials.gov
Time frame: Adverse events were collected for 48 hours after injection with FLT, the investigational drug under study..
Reporting threshold: 5%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
\[F-18\] Fluorothymidine PET imaging will be used to create a radiation therapy treatment plan to avoid active bone marrow in the pelvis. This will be done to evaluate if sparing bone marrow will help maintain blood counts. This would impact chemotherapy administration.
Publications & conference data
2 peer-reviewed publications reference this trial (live from Europe PMC):
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by John M. Buatti
Last refreshed: 26 March 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT01717391.