A Phase 3 interventional study of NKTR-102 and Treatment of Physician's Choice (TPC) in Locally Recurrent Breast Cancer and Metastatic Breast Cancer, sponsored by Nektar Therapeutics. Completed at 153 sites in 11 countries. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-06-01.
Sponsored by Nektar Therapeutics · Phase 3, Interventional, and Treatment
The study is designed as an open-label, randomized, parallel, two arm, multicenter, international Phase 3 study in patients with recurrent or metastatic breast cancer previously treated with cytotoxic chemotherapy regimens.
The primary study objective is to compare overall survival of patients who receive NKTR-102 given once every 21 days to patients who receive treatment of Physician's Choice selected from a list of seven single-agent intravenous therapies.
12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.
This study's enrollment of 852 is above the median of 72 across 9,303 interventional studies indexed under Breast Neoplasms.
Browse Breast Neoplasms studies →Nektar Therapeutics is the lead sponsor of 39 studies on the registry; 2 are open to participants now.
Of its 22 completed or terminated interventional studies of FDA-regulated products, 12 (55%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria (major highlights):
Drug: NKTR-102
Drug: Treatment of Physician's Choice (TPC)
145 mg/m2 NKTR-102 will be delivered q21day as a 90-minute intravenous (IV) infusion on day 1 of each treatment cycle.
One of the following Treatment of Physician Choice will be administered per standard of care: eribulin, ixabepilone, vinorelbine, gemcitabine, paclitaxel, docetaxel, or nab-paclitaxel
Kaplan-Meier Estimate of Overall Survival: Intention to Treat (ITT) Population
Duration of OS was defined as the time from the date of randomisation to the date of death due to any cause. Subjects were followed until their date of death, loss to follow-up, withdrawal of consent for further follow-up for survival, or final database closure. OS was determined using the ITT population which included all subjects randomized into 1 of the 2 treatment arms. Subjects who were lost-to-follow-up or were not known to have died were censored at last date they were shown to be alive. Subjects who did not have any follow-up since the date of randomization were censored at the date of randomization.
Time frame: 36 Months
Kaplan-Meier Estimate of Progression-Free Survival (PFS): ITT Population
PFS was defined as the time from the date of randomization to the earliest date of disease progression (assessed by the investigator according to RECIST version 1.1) or death due to any cause. PFS was determined using the ITT population which included all subjects randomized into 1 of the 2 treatment arms. For subjects whose disease did not progress or who did not die, the PFS time was censored at the time of the last tumor assessment that demonstrated lack of disease progression. For subjects who received new anti-cancer therapy, the PFS time was censored at the start of the new anti-cancer therapy.
Time frame: Up to 38 months.
Clinical Benefit Rate (CBR): ITT Population
CBR was defined as the proportion of subjects with a CR, PR, or stable disease (SD) for at least 6 months (≥ 182 days).
Time frame: Up to 38 months.
Duration of Response (DOR): Efficacy Evaluable Population
DOR was defined as the time from first documented CR or PR until the earliest evidence of disease progression or death from any cause. Subjects who were alive without documented disease progression per RECIST version 1.1 were censored at the date of last tumor assessment without disease progression or start of new anti-cancer therapy for the study disease.
Time frame: Up to 38 months.
Incidence of Dose Reductions: Safety Population
Proportion of subjects who had a reduction in dose.
Time frame: Up to 38 months.
Quality of Life Questionnaire-Core 30 (QLQ-C30) Individual Scale, Overall Score: ITT Population
The QLQ-C30 is composed of 5 multi-item functional scales (physical, role, social, emotional and cognitive functioning), a global health status/QoL scale, 3 symptom scales (fatigue, nausea/vomiting, and pain), and 6 single items (financial impact, appetite loss, diarrhoea, constipation, insomnia and dyspnoea). Most items are scaled 1 to 4 (1 = not at all, 2 = a little, 3 = quite a bit, 4 = very much) except the items contributing to the global health status/QoL, which are 7-point questions (1 = very poor to 7 = excellent). Raw scores were transformed using a linear transformation to standardize the results so that scores range from 0 to 100. n=number of subjects who completed each individual scale. Note that for scores measuring function, a higher score represented a higher "better" level of functioning, while for scores measuring symptoms, a higher score represented a lower "worse" level of symptoms.
Time frame: Up to 39 months
QLQ-C30 Individual Scale, Change Over Time: ITT Population
The QLQ-C30 is composed of 5 multi-item functional scales (physical, role, social, emotional and cognitive functioning), a global health status/QoL scale, 3 symptom scales (fatigue, nausea/vomiting, and pain), and 6 single items (financial impact, appetite loss, diarrhea, constipation, insomnia and dyspnea). Most items are scaled 1 to 4 (1 = not at all, 2 = a little, 3 = quite a bit, 4 = very much) except the items contributing to the global health status/QoL, which are 7-point questions (from 1 = very poor to 7 = excellent). Raw scores were transformed using a linear transformation to standardize the results so that scores range from 0 to 100. n=number of subjects who completed each individual scale. Note that for scores measuring function, a higher score represented a higher "better" level of functioning, while for scores measuring symptoms, a higher score represented a lower "worse" level of symptoms.
Time frame: From Baseline to Week 8, Week 16, Week 24, Week 32, Week 40, Week 48, Week 56.
Quality of Life Questionnaire-breast Cancer-specific Module (BR23) Score Value: ITT Population
The QLQ-BR23 incorporates 5 multi-item scales to assess systemic therapy side effects, arm symptoms, breast symptoms, body image and sexual functioning, and 3 single items to assess sexual enjoyment, upset by hair loss and future perspective. Most items were scaled one to four except the items contributing to the global health status/QoL, which were seven-point questions. Raw scores were transformed using a linear transformation to standardize the results so that scores ranged from 0-100. Note that for scores measuring function, a higher score represented a higher "better" level of functioning, while for scores measuring symptoms, a higher score represented a lower "worse" level of symptoms.
Time frame: Baseline
BR23 Score Change Over Time: ITT Population
The QLQ-BR23 incorporates 5 multi-item scales to assess systemic therapy side effects, arm symptoms, breast symptoms, body image and sexual functioning, and 3 single items assess sexual enjoyment, upset by hair loss and future perspective. Most items were scaled one to four except the items contributing to the global health status/QoL, which were seven-point questions. Raw scores were transformed using a linear transformation to standardize the results so that scores ranged from 0-100. Note that for scores measuring function, a higher score represented a higher "better" level of functioning, while for scores measuring symptoms, a higher score represented a lower "worse" level of symptoms.
Time frame: Up to 38 months.
Population Mean ± Standard Deviation (SD) Area Under the Concentration-Time Curve (AUC) for NKTR-102 and Metabolites After Multiple Administration of 145 mg/m^2 NKTR-102 [25]
Plasma concentrations of NKTR-102 and its major metabolites irinotecan, SN38, SN38G, and APC were measured using validated analytical methods. The population pharmacokinetic (PK) model-derived mean AUC values were computed by integration from t = 0 (start of first dose) to 21 days after the last dose. Integration was implemented using a separate compartment defined as the amount of drug or metabolite in the central compartment divided by the model-estimated volume of distribution.
Time frame: Up to 38 months.
Population Mean ± SD Maximum Plasma Concentration (Cmax) for NKTR-102 and Metabolites After Multiple Administration of 145 mg/m^2 NKTR-102 [26]
Plasma concentrations of NKTR-102 and its major metabolites irinotecan, SN38, SN38G, and APC were measured using validated analytical methods. The population PK model-derived mean Cmax values were computed by integration from t = 0 (start of first dose) to 21 days after the last dose. Integration was implemented using a separate compartment defined as the amount of drug or metabolite in the central compartment divided by the model-estimated volume of distribution.
Time frame: Up to 38 months.
Population Mean ± SD Elimination Half-life (t½) for NKTR-102 After Multiple Administration of 145 mg/m^2 NKTR-102 [27]
Plasma concentrations of NKTR-102 and its major metabolites irinotecan, SN38, SN38G, and APC were measured using validated analytical methods. The population PK model-derived mean t½ values were computed by integration from t = 0 (start of first dose) to 21 days after the last dose. Integration was implemented using a separate compartment defined as the amount of drug or metabolite in the central compartment divided by the model-estimated volume of distribution. The t½ of all analytes was primarily driven by NKTR-102. Thus, the NKTR-102 t½ of 37 days also applies to all NKTR-102 metabolites.
Time frame: Up to 38 months.
Objective Response Rate (ORR): Efficacy Evaluable Population
ORR was defined as the proportion of subjects with a complete response (CR) or a partial response (PR), assessed by the investigator based on Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 The analyses were performed for subjects in the efficacy evaluable population who had measurable disease as determined by the investigator at baseline.
Time frame: Up to 38 months.
| Milestone | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Started | 429 | 423 |
| Completed | 92 | 81 |
| Not completed | 337 | 342 |
| Withdrew: Death | 323 | 322 |
| Withdrew: Withdrawal by subject | 14 | 18 |
| Withdrew: Lost to follow-up | 0 | 2 |
Duration of OS was defined as the time from the date of randomisation to the date of death due to any cause. Subjects were followed until their date of death, loss to follow-up, withdrawal of consent for further follow-up for survival, or final database closure. OS was determined using the ITT population which included all subjects randomized into 1 of the 2 treatment arms. Subjects who were lost-to-follow-up or were not known to have died were censored at last date they were shown to be alive. Subjects who did not have any follow-up since the date of randomization were censored at the date of randomization.
| Months | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Kaplan-Meier Estimate of Overall Survival: Intention to Treat (ITT) Population | 12.4 (11.0 to 13.6) | 10.3 (9.0 to 11.3) |
PFS was defined as the time from the date of randomization to the earliest date of disease progression (assessed by the investigator according to RECIST version 1.1) or death due to any cause. PFS was determined using the ITT population which included all subjects randomized into 1 of the 2 treatment arms. For subjects whose disease did not progress or who did not die, the PFS time was censored at the time of the last tumor assessment that demonstrated lack of disease progression. For subjects who received new anti-cancer therapy, the PFS time was censored at the start of the new anti-cancer therapy.
| Months | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Kaplan-Meier Estimate of Progression-Free Survival (PFS): ITT Population | 2.4 (2.1 to 3.5) | 2.8 (2.1 to 3.5) |
CBR was defined as the proportion of subjects with a CR, PR, or stable disease (SD) for at least 6 months (≥ 182 days).
| percentage of subjects | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Clinical Benefit Rate (CBR): ITT Population | 20.5 (16.8 to 24.6) | 19.6 (15.9 to 23.7) |
DOR was defined as the time from first documented CR or PR until the earliest evidence of disease progression or death from any cause. Subjects who were alive without documented disease progression per RECIST version 1.1 were censored at the date of last tumor assessment without disease progression or start of new anti-cancer therapy for the study disease.
| Months | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Duration of Response (DOR): Efficacy Evaluable Population | 3.9 (3.5 to 5.1) | 3.7 (2.1 to 3.9) |
Proportion of subjects who had a reduction in dose.
| percentage of subjects | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Incidence of Dose Reductions: Safety Population | 27.5 | 28.3 |
The QLQ-C30 is composed of 5 multi-item functional scales (physical, role, social, emotional and cognitive functioning), a global health status/QoL scale, 3 symptom scales (fatigue, nausea/vomiting, and pain), and 6 single items (financial impact, appetite loss, diarrhoea, constipation, insomnia and dyspnoea). Most items are scaled 1 to 4 (1 = not at all, 2 = a little, 3 = quite a bit, 4 = very much) except the items contributing to the global health status/QoL, which are 7-point questions (1 = very poor to 7 = excellent). Raw scores were transformed using a linear transformation to standardize the results so that scores range from 0 to 100. n=number of subjects who completed each individual scale. Note that for scores measuring function, a higher score represented a higher "better" level of functioning, while for scores measuring symptoms, a higher score represented a lower "worse" level of symptoms.
| units on a scale | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Global health status/QoL | 61.4 ± 21.76 | 58.0 ± 20.43 |
| Physical functioning | 74.5 ± 19.72 | 72.3 ± 19.74 |
| Role functioning | 71.8 ± 26.81 | 67.3 ± 26.93 |
| Emotional functioning | 72.4 ± 21.86 | 71.9 ± 20.06 |
| Cognitive functioning | 82.5 ± 18.7 | 81.2 ± 19.04 |
| Social functioning | 73.0 ± 26.69 | 71.0 ± 25.06 |
| Fatigue | 37.7 ± 23.68 | 41.3 ± 22.98 |
| Nausea and vomiting | 8.6 ± 13.39 | 9.9 ± 16.17 |
| Pain | 32.3 ± 27.2 | 35.3 ± 28.01 |
| Dyspnoea | 24.5 ± 27.44 | 23.6 ± 26.2 |
| Insomnia | 29.3 ± 28.94 | 31.5 ± 27.11 |
| Appetite loss | 24.3 ± 27.55 | 26.6 ± 27.89 |
| Constipation | 18.0 ± 25.9 | 21.0 ± 28.15 |
| Diarrhoea | 6.3 ± 13.64 | 5.6 ± 11.14 |
| Financial difficulties | 26.4 ± 31.29 | 21.9 ± 28.95 |
The QLQ-C30 is composed of 5 multi-item functional scales (physical, role, social, emotional and cognitive functioning), a global health status/QoL scale, 3 symptom scales (fatigue, nausea/vomiting, and pain), and 6 single items (financial impact, appetite loss, diarrhea, constipation, insomnia and dyspnea). Most items are scaled 1 to 4 (1 = not at all, 2 = a little, 3 = quite a bit, 4 = very much) except the items contributing to the global health status/QoL, which are 7-point questions (from 1 = very poor to 7 = excellent). Raw scores were transformed using a linear transformation to standardize the results so that scores range from 0 to 100. n=number of subjects who completed each individual scale. Note that for scores measuring function, a higher score represented a higher "better" level of functioning, while for scores measuring symptoms, a higher score represented a lower "worse" level of symptoms.
| units on a scale | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Global health status/QoL: Week 8 | -4.4 ± 22.57 | -4.7 ± 20.37 |
| Global health status/QoL: Week 16 | -2.5 ± 22.9 | -5.6 ± 21.86 |
| Global health status/QoL: Week 24 | -1.8 ± 24.99 | -6.6 ± 22.47 |
| Global health status/QoL: Week 32 | -0.2 ± 20.39 | -6.3 ± 26.66 |
| Global health status/QoL: Week 40 | -5.2 ± 22.27 | -2.6 ± 19.41 |
| Global health status/QoL: Week 48 | -2.3 ± 18.62 | -1.8 ± 20.71 |
| Global health status/QoL: Week 56 | 2.9 ± 17.79 | -11.1 ± 29.36 |
| Physical functioning: Week 8 | -4.9 ± 17.98 | -7.1 ± 17.4 |
| Physical functioning: Week 16 | -3.0 ± 20.63 | -7.0 ± 18.26 |
| Physical functioning: Week 24 | 0.3 ± 20.93 | -4.7 ± 15.9 |
| Physical functioning: Week 32 | -3.0 ± 18.88 | -8.5 ± 20.4 |
| Physical functioning: Week 40 | -1.9 ± 19.23 | -6.4 ± 18.81 |
| Physical functioning: Week 48 | 0.2 ± 17.66 | -7.4 ± 16.46 |
| Physical functioning: Week 56 | 2.2 ± 13.48 | -10.4 ± 24.27 |
| Role functioning: Week 8 | -6.6 ± 27.26 | -8.3 ± 27.37 |
| Role functioning: Week 16 | -4.8 ± 26.06 | -8.3 ± 24.41 |
| Role functioning: Week 24 | -7.8 ± 33.3 | -10.8 ± 26.72 |
| Role functioning: Week 32 | -9.7 ± 19.03 | -12.2 ± 29.81 |
| Role functioning: Week 40 | -8.7 ± 30.94 | -7.8 ± 27.93 |
| Role functioning: Week 48 | -3.1 ± 25.38 | -5.7 ± 21.7 |
| Role functioning: Week 56 | -2.6 ± 17.12 | -9.4 ± 35.08 |
| Emotional functioning: Week 8 | -0.5 ± 19.65 | -2.0 ± 19.95 |
| Emotional functioning: Week 16 | 2.7 ± 18.93 | -1.6 ± 20.57 |
| Emotional functioning: Week 24 | -0.6 ± 22.34 | -3.7 ± 18.95 |
| Emotional functioning: Week 32 | -2.8 ± 21.02 | -7.6 ± 20.88 |
| Emotional functioning: Week 40 | -1.4 ± 26.12 | 0.8 ± 19.11 |
| Emotional functioning: Week 48 | 0.9 ± 21.37 | 1.2 ± 18.83 |
| Emotional functioning: Week 56 | -3.6 ± 19.72 | -4.7 ± 25.29 |
| Cognitive functioning: Week 8 | -3.3 ± 18.46 | -3.2 ± 19.44 |
| Cognitive functioning: Week 16 | -1.4 ± 17.67 | -4.4 ± 20.81 |
| Cognitive functioning: Week 24 | -1.8 ± 17.26 | -2.2 ± 17.12 |
| Cognitive functioning: Week 32 | -4.6 ± 17.82 | -7.9 ± 20.14 |
| Cognitive functioning: Week 40 | -5.7 ± 18.61 | -3.5 ± 21.6 |
| Cognitive functioning: Week 48 | -4.6 ± 18.04 | 2.2 ± 17.75 |
| Cognitive functioning: Week 56 | -2.9 ± 18.25 | -6.7 ± 22.97 |
| Social functioning: Week 8 | -4.9 ± 27.46 | -6.2 ± 24.04 |
| Social functioning: Week 16 | 0.4 ± 27.57 | -6.4 ± 24.2 |
| Social functioning: Week 24 | -3.4 ± 25.68 | -7.2 ± 24.1 |
| Social functioning: Week 32 | -8.8 ± 20.61 | -7.2 ± 30.1 |
| Social functioning: Week 40 | -9.7 ± 26.09 | -7.0 ± 20.98 |
| Social functioning: Week 48 | -5.5 ± 17.86 | -6.6 ± 20.71 |
| Social functioning: Week 56 | -3.2 ± 22.25 | -24.4 ± 29.96 |
| Fatigue: Week 8 | 6.7 ± 22.88 | 6.6 ± 22.17 |
| Fatigue: Week 16 | 3.7 ± 22.63 | 7.7 ± 22.84 |
| Fatigue: Week 24 | 3.0 ± 26.51 | 3.6 ± 21.23 |
| Fatigue: Week 32 | 5.0 ± 21.84 | 6.6 ± 24.25 |
| Fatigue: Week 40 | 4.1 ± 26.65 | 2.3 ± 19.02 |
| Fatigue: Week 48 | 0.9 ± 18.69 | 6.7 ± 14.53 |
| Fatigue: Week 56 | 2.1 ± 19.57 | 4.5 ± 24.36 |
| Nausea and vomiting: Week 8 | 12.8 ± 23.28 | 4.2 ± 21.94 |
| Nausea and vomiting: Week 16 | 8.8 ± 19.85 | -2.0 ± 19.1 |
| Nausea and vomiting: Week 24 | 7.2 ± 22.57 | -0.1 ± 16.55 |
| Nausea and vomiting: Week 32 | 6.5 ± 14.21 | 3.5 ± 18.81 |
| Nausea and vomiting: Week 40 | 4.5 ± 12.97 | 5.6 ± 23.61 |
| Nausea and vomiting: Week 48 | 5.0 ± 13.77 | 3.9 ± 28.92 |
| Nausea and vomiting: Week 56 | 8.0 ± 11.66 | 1.6 ± 23.02 |
| Pain: Week 8 | -1.7 ± 26.08 | 2.4 ± 27.03 |
| Pain: Week 16 | -5.0 ± 26.9 | 1.9 ± 27.8 |
| Pain: Week 24 | -4.1 ± 29.35 | 2.1 ± 27.78 |
| Pain: Week 32 | -1.0 ± 27.17 | 3.9 ± 32.49 |
| Pain: Week 40 | 1.6 ± 31.82 | 1.3 ± 29.96 |
| Pain: Week 48 | -0.8 ± 30.82 | -0.4 ± 25.23 |
| Pain: Week 56 | -4.2 ± 22.88 | 0.5 ± 33.95 |
| Dyspnoea: Week 8 | 0.7 ± 25.02 | 5.8 ± 24.59 |
| Dyspnoea: Week 16 | -1.1 ± 26.34 | 4.6 ± 26.99 |
| Dyspnoea: Week 24 | -2.0 ± 25.65 | 1.4 ± 20.47 |
| Dyspnoea: Week 32 | 0 ± 24.77 | 8.6 ± 29.67 |
| Dyspnoea: Week 40 | 2.4 ± 27.93 | 5.0 ± 25.95 |
| Dyspnoea: Week 48 | -5.6 ± 26.38 | -0.9 ± 19.62 |
| Dyspnoea: Week 56 | -7.1 ± 18.36 | -1.2 ± 22.13 |
| Insomnia: Week 8 | -1.5 ± 28.1 | 3.3 ± 30.28 |
| Insomnia: Week 16 | -1.4 ± 24.4 | 2.1 ± 27.2 |
| Insomnia: Week 24 | -2.7 ± 31.77 | 1.3 ± 26.41 |
| Insomnia: Week 32 | 1.5 ± 34.04 | 2.5 ± 30.14 |
| Insomnia: Week 40 | 0 ± 31.51 | 4.4 ± 22.71 |
| Insomnia: Week 48 | 2.8 ± 28.05 | 0.9 ± 34.01 |
| Insomnia: Week 56 | -1.3 ± 35.57 | -1.0 ± 27.53 |
| Appetite loss: Week 8 | 11.6 ± 32.03 | 4.0 ± 30.26 |
| Appetite loss: Week 16 | 9.4 ± 32.16 | -2.1 ± 29.75 |
| Appetite loss: Week 24 | 4.6 ± 36.55 | -1.6 ± 30.57 |
| Appetite loss: Week 32 | 8.9 ± 35.42 | 0 ± 32.04 |
| Appetite loss: Week 40 | 6.9 ± 38.57 | 5.4 ± 38.58 |
| Appetite loss: Week 48 | 2.2 ± 34.67 | 13.0 ± 45.93 |
| Appetite loss: Week 56 | 14.7 ± 35.38 | 1.0 ± 39.19 |
| Constipation: Week 8 | 2.1 ± 29.95 | 6.7 ± 27.81 |
| Constipation: Week 16 | 0.2 ± 31.03 | 3.1 ± 30.96 |
| Constipation: Week 24 | 0.5 ± 29.65 | -2.0 ± 28.14 |
| Constipation: Week 32 | 4.6 ± 29.83 | 0.3 ± 26.53 |
| Constipation: Week 40 | 1.0 ± 28.44 | -3.2 ± 29.32 |
| Constipation: Week 48 | -0.6 ± 31.65 | 7.0 ± 33.48 |
| Constipation: Week 56 | 1.9 ± 34.42 | -4.4 ± 35.34 |
| Diarrhoea: Week 8 | 10.2 ± 27.98 | 1.8 ± 16.87 |
| Diarrhoea: Week 16 | 10.8 ± 26.97 | 3.4 ± 19.07 |
| Diarrhoea: Week 24 | 9.4 ± 26.43 | 2.4 ± 16.39 |
| Diarrhoea: Week 32 | 9.2 ± 21.3 | 0.8 ± 17.07 |
| Diarrhoea: Week 40 | 8.3 ± 23.06 | 7.8 ± 27.93 |
| Diarrhoea: Week 48 | 12.1 ± 22.23 | 0 ± 17.57 |
| Diarrhoea: Week 56 | 4.5 ± 14.57 | 6.7 ± 31.37 |
| Financial difficulties: Week 8 | -0.7 ± 22.87 | 0.6 ± 22.42 |
| Financial difficulties: Week 16 | 0.8 ± 23.26 | 1.0 ± 22.48 |
| Financial difficulties: Week 24 | 1.0 ± 21.09 | 4.6 ± 28.38 |
| Financial difficulties: Week 32 | 1.2 ± 20.28 | 10.2 ± 26.81 |
| Financial difficulties: Week 40 | 4.2 ± 21.61 | -1.7 ± 19.74 |
| Financial difficulties: Week 48 | 0 ± 22.27 | 3.5 ± 18.9 |
| Financial difficulties: Week 56 | -1.9 ± 21.25 | 5.6 ± 25.72 |
The QLQ-BR23 incorporates 5 multi-item scales to assess systemic therapy side effects, arm symptoms, breast symptoms, body image and sexual functioning, and 3 single items to assess sexual enjoyment, upset by hair loss and future perspective. Most items were scaled one to four except the items contributing to the global health status/QoL, which were seven-point questions. Raw scores were transformed using a linear transformation to standardize the results so that scores ranged from 0-100. Note that for scores measuring function, a higher score represented a higher "better" level of functioning, while for scores measuring symptoms, a higher score represented a lower "worse" level of symptoms.
| units on a scale | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Body image | 69.5 ± 28.94 | 69.9 ± 27.91 |
| Sexual functioning | 14.1 ± 19.24 | 13.3 ± 18.91 |
| Sexual enjoyment | 36.1 ± 29.25 | 34.2 ± 30.77 |
| Future perspective | 38.7 ± 30.53 | 36.1 ± 29.0 |
| Systemic therapy side effects | 21.9 ± 16.37 | 22.3 ± 15.15 |
| Breast symptoms | 15.3 ± 21.55 | 15.8 ± 20.79 |
| Arm symptoms | 20.8 ± 23.4 | 22.2 ± 22.75 |
| Upset by hair loss | 33.2 ± 34.15 | 30.5 ± 33.29 |
The QLQ-BR23 incorporates 5 multi-item scales to assess systemic therapy side effects, arm symptoms, breast symptoms, body image and sexual functioning, and 3 single items assess sexual enjoyment, upset by hair loss and future perspective. Most items were scaled one to four except the items contributing to the global health status/QoL, which were seven-point questions. Raw scores were transformed using a linear transformation to standardize the results so that scores ranged from 0-100. Note that for scores measuring function, a higher score represented a higher "better" level of functioning, while for scores measuring symptoms, a higher score represented a lower "worse" level of symptoms.
| units on a scale | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Body image: Week 8 | -0.8 ± 21.99 | -2.2 ± 20.49 |
| Body image: Week 16 | -0.8 ± 24.31 | -2.3 ± 20.91 |
| Body image: Week 24 | 0.8 ± 23.58 | -4.7 ± 20.97 |
| Body image: Week 32 | -1.2 ± 26.27 | -0.3 ± 22.23 |
| Body image: Week 40 | 3.3 ± 22.63 | -2.4 ± 20.98 |
| Body image: Week 48 | -0.3 ± 25.47 | -1.1 ± 28.93 |
| Body image: Week 56 | 3.9 ± 25.53 | -10.2 ± 26.61 |
| Sexual functioning: Week 8 | -0.8 ± 16.07 | -2.2 ± 16.26 |
| Sexual functioning: Week 16 | 0.1 ± 16.67 | -0.8 ± 17.28 |
| Sexual functioning: Week 24 | -2.8 ± 16.72 | -1.4 ± 15.7 |
| Sexual functioning: Week 32 | -2.2 ± 19.12 | -.7 ± 12.82 |
| Sexual functioning: Week 40 | -5.4 ± 16.66 | 2.7 ± 16.27 |
| Sexual functioning: Week 48 | -9.6 ± 19.68 | 1.6 ± 15.88 |
| Sexual functioning: Week 56 | -5.3 ± 17.33 | 1.7 ± 13.06 |
| Sexual enjoyment: Week 8 | 2.6 ± 19.84 | -4.2 ± 23.64 |
| Sexual enjoyment: Week 16 | -0.3 ± 18.41 | -8.6 ± 21.7 |
| Sexual enjoyment: Week 24 | 1.9 ± 29.72 | -3.5 ± 28.1 |
| Sexual enjoyment: Week 32 | 2.0 ± 23.48 | -2.6 ± 20.24 |
| Sexual enjoyment: Week 40 | -15.3 ± 29.69 | 7.1 ± 13.11 |
| Sexual enjoyment: Week 48 | -27.8 ± 25.09 | 6.7 ± 14.91 |
| Sexual enjoyment: Week 56 | -9.8 ± 16.27 | 0 ± 0 |
| Future perspective: Week 8 | 3.5 ± 28.3 | 1.5 ± 27.21 |
| Future perspective: Week 16 | 6.9 ± 27.17 | 3.6 ± 29.18 |
| Future perspective: Week 24 | 9.3 ± 31.1 | 6.6 ± 29.55 |
| Future perspective: Week 32 | 6.1 ± 30.19 | 4.4 ± 35.86 |
| Future perspective: Week 40 | 7.1 ± 28.05 | 13.3 ± 37.75 |
| Future perspective: Week 48 | 9.2 ± 27.31 | 6.1 ± 35.66 |
| Future perspective: Week 56 | 16.0 ± 28.25 | -3.1 ± 45.22 |
| Systemic therapy side effects: Week 8 | 2.3 ± 13.74 | 7.9 ± 16.03 |
| Systemic therapy side effects: Week 16 | 3.0 ± 14.95 | 9.1 ± 17.7 |
| Systemic therapy side effects: Week 24 | 2.2 ± 15.55 | 6.9 ± 17.39 |
| Systemic therapy side effects: Week 32 | 3.5 ± 13.5 | 7.3 ± 18.01 |
| Systemic therapy side effects: Week 40 | 3.2 ± 16.62 | 10.1 ± 18.33 |
| Systemic therapy side effects: Week 48 | 0.3 ± 11.74 | 6.4 ± 15.68 |
| Systemic therapy side effects: Week 56 | -1.1 ± 11.06 | 6.8 ± 21.84 |
| Breast symptoms: Week 8 | -1.7 ± 15.21 | -0.2 ± 13.82 |
| Breast symptoms: Week 16 | -3.5 ± 14.6 | 0.1 ± 14.64 |
| Breast symptoms: Week 24 | -4.8 ± 10.52 | -1.1 ± 13.48 |
| Breast symptoms: Week 32 | -2.5 ± 14.26 | -2.8 ± 13.63 |
| Breast symptoms: Week 40 | -1.9 ± 14.59 | -0.2 ± 11.02 |
| Breast symptoms: Week 48 | -2.7 ± 12.16 | 0 ± 13.79 |
| Breast symptoms: Week 56 | -3.4 ± 13.28 | 2.5 ± 12.15 |
| Arm symptoms: Week 8 | -3.0 ± 16.72 | -0.9 ± 15.01 |
| Arm symptoms: Week 16 | -5.1 ± 17.24 | 1.1 ± 18.24 |
| Arm symptoms: Week 24 | -4.9 ± 20.06 | -0.3 ± 19.56 |
| Arm symptoms: Week 32 | -4.4 ± 18.39 | -0.5 ± 19.03 |
| Arm symptoms: Week 40 | -6.0 ± 21.86 | 5.2 ± 18.39 |
| Arm symptoms: Week 48 | -5.6 ± 20.89 | -1.4 ± 12.98 |
| Arm symptoms: Week 56 | -5.6 ± 19.44 | -1.4 ± 12.98 |
| Upset by hair loss: Week 8 | -4.7 ± 32.28 | 0.1 ± 28.63 |
| Upset by hair loss: Week 16 | 8.3 ± 33.61 | 2.9 ± 31.24 |
| Upset by hair loss: Week 24 | 6.8 ± 35.02 | 3.5 ± 30.3 |
| Upset by hair loss: Week 32 | 6.9 ± 31.76 | -2.3 ± 29.68 |
| Upset by hair loss: Week 40 | -4.2 ± 30.05 | 20.2 ± 29.37 |
| Upset by hair loss: Week 48 | -16.7 ± 31.91 | 21.7 ± 36.89 |
| Upset by hair loss: Week 56 | -14.6 ± 30.13 | 16.7 ± 44.1 |
Plasma concentrations of NKTR-102 and its major metabolites irinotecan, SN38, SN38G, and APC were measured using validated analytical methods. The population pharmacokinetic (PK) model-derived mean AUC values were computed by integration from t = 0 (start of first dose) to 21 days after the last dose. Integration was implemented using a separate compartment defined as the amount of drug or metabolite in the central compartment divided by the model-estimated volume of distribution.
| μg·h/mL | NKTR-102 |
|---|---|
| NKTR-102 | 4619 ± 4874 |
| Irinotecan | 18.8 ± 22.1 |
| SN38 | 5.32 ± 6.74 |
| SN38G | 40.6 ± 39.2 |
| APC | 4.0 ± 5.1 |
Plasma concentrations of NKTR-102 and its major metabolites irinotecan, SN38, SN38G, and APC were measured using validated analytical methods. The population PK model-derived mean Cmax values were computed by integration from t = 0 (start of first dose) to 21 days after the last dose. Integration was implemented using a separate compartment defined as the amount of drug or metabolite in the central compartment divided by the model-estimated volume of distribution.
| ng/mL | NKTR-102 |
|---|---|
| NKTR-102 | 62701 ± 14576 |
| Irinotecan | 138 ± 61.8 |
| SN38 | 4.45 ± 1.82 |
| SN38G | 47.7 ± 43.1 |
| APC | 7.3 ± 6.7 |
Plasma concentrations of NKTR-102 and its major metabolites irinotecan, SN38, SN38G, and APC were measured using validated analytical methods. The population PK model-derived mean t½ values were computed by integration from t = 0 (start of first dose) to 21 days after the last dose. Integration was implemented using a separate compartment defined as the amount of drug or metabolite in the central compartment divided by the model-estimated volume of distribution. The t½ of all analytes was primarily driven by NKTR-102. Thus, the NKTR-102 t½ of 37 days also applies to all NKTR-102 metabolites.
| days | NKTR-102 |
|---|---|
| Population Mean ± SD Elimination Half-life (t½) for NKTR-102 After Multiple Administration of 145 mg/m^2 NKTR-102 [27] | 36.8 ± 1.4 |
ORR was defined as the proportion of subjects with a complete response (CR) or a partial response (PR), assessed by the investigator based on Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 The analyses were performed for subjects in the efficacy evaluable population who had measurable disease as determined by the investigator at baseline.
| percentage of subjects | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Objective Response Rate (ORR): Efficacy Evaluable Population | 16.4 (12.7 to 20.7) | 17.0 (13.3 to 21.3) |
Collected over Up to 38 months.. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| NKTR-102 | 323/425 (76%) | 128/425 (30.1%) | 417/425 (98.1%) |
| Physician's Treatment of Choice | 322/406 (79.3%) | 129/406 (31.8%) | 404/406 (99.5%) |
| Event | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| Pleural effusionRespiratory, thoracic and mediastinal disorders | 15/425 | 18/406 |
| DiarrhoeaGastrointestinal disorders | 17/425 | 2/406 |
| Metastases to central nervous systemNeoplasms benign, malignant and unspecified (incl cysts and polyps) | 6/425 | 10/406 |
| VomitingGastrointestinal disorders | 10/425 | 6/406 |
| DehydrationMetabolism and nutrition disorders | 8/425 | 6/406 |
| DyspnoeaRespiratory, thoracic and mediastinal disorders | 2/425 | 7/406 |
| Febrile neutropeniaBlood and lymphatic system disorders | 2/425 | 6/406 |
| PyrexiaGeneral disorders | 3/425 | 5/406 |
| Respiratory failureRespiratory, thoracic and mediastinal disorders | 1/425 | 5/406 |
| AscitesGastrointestinal disorders | 4/425 | 5/406 |
| Event | NKTR-102 | Physician's Treatment of Choice |
|---|---|---|
| DiarrhoeaGastrointestinal disorders | 277/425 | 79/406 |
| NauseaGastrointestinal disorders | 255/425 | 155/406 |
| VomitingGastrointestinal disorders | 172/425 | 72/406 |
| FatigueGeneral disorders | 145/425 | 130/406 |
| NeutropeniaBlood and lymphatic system disorders | 92/425 | 126/406 |
| ConstipationGastrointestinal disorders | 112/425 | 126/406 |
| Decreased appetiteMetabolism and nutrition disorders | 130/425 | 98/406 |
| AstheniaGeneral disorders | 91/425 | 114/406 |
| AlopeciaSkin and subcutaneous tissue disorders | 44/425 | 95/406 |
| Abdominal painGastrointestinal disorders | 89/425 | 47/406 |
| Age, Categorical(Participants) | NKTR-102 | Physician's Treatment of Choice | Total |
|---|---|---|---|
| <=18 years | 0 | 0 | 0 |
| Between 18 and 65 years | 341 | 342 | 683 |
| >=65 years | 88 | 81 | 169 |
| Age, Continuous(years) | NKTR-102 | Physician's Treatment of Choice | Total |
|---|---|---|---|
| Mean | 55.1 ± 10.29 | 55.2 ± 10.1 | 55.2 ± 10.19 |
| Sex: Female, Male(Participants) | NKTR-102 | Physician's Treatment of Choice | Total |
|---|---|---|---|
| Female | 429 | 423 | 852 |
| Male | 0 | 0 | 0 |
| Region of Enrollment(participants) | NKTR-102 | Physician's Treatment of Choice | Total |
|---|---|---|---|
| Canada | 9 | 15 | 24 |
| South Korea | 43 | 42 | 85 |
| Netherlands | 1 | 1 | 2 |
| Belgium | 53 | 39 | 92 |
| United States | 198 | 180 | 378 |
| Italy | 10 | 12 | 22 |
| United Kingdom | 19 | 23 | 42 |
| France | 36 | 47 | 83 |
| Germany | 0 | 4 | 4 |
| Spain | 46 | 51 | 97 |
| Russia | 14 | 9 | 23 |
Showing the first 100 of 153 sites across 11 countries.
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