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TEAS Timing for Gastrectomy Recovery (TEAS-TIME Trial)

19. juli 2026 oppdatert av: Zhou Yanbing, The Affiliated Hospital of Qingdao University

Effect of Perioperative vs Postoperative-Only Transcutaneous Electrical Acupoint Stimulation on Gastrointestinal Recovery and Pain Control After Laparoscopic Radical Gastrectomy: A Multicenter, Three-Arm, Randomized, Sham-Controlled Trial

The goal of this clinical trial is to learn if transcutaneous electrical acupoint stimulation (TEAS) works to help people recover faster after laparoscopic surgery for stomach cancer. TEAS is a treatment that uses small electrical pulses through sticky pads on the skin. It does not use needles.

The main questions it aims to answer are:

Does TEAS help people pass gas (a sign that the digestive system is waking up) sooner after surgery?

Does TEAS help lower pain after surgery?

Does TEAS reduce the need for extra pain medication after surgery?

Researchers will compare three groups to see if TEAS works better when given before, during, and after surgery compared with only after surgery.

Group 1 receives TEAS before, during, and after surgery.

Group 2 receives a sham (inactive) treatment before and during surgery, and real TEAS after surgery.

Group 3 receives sham treatment at all time points.

All participants will receive the same standard pain relief and recovery care after surgery.

Participants will:

Be randomly assigned (like flipping a coin) to one of the three groups

Receive TEAS or sham treatment for 30 minutes before surgery, during surgery, and for 30 minutes each day on the first 3 days after surgery

Rate their pain on a 0-10 scale at 6, 12, 24, 48, and 72 hours after surgery

Complete quality-of-life questionnaires before surgery, on day 4 after surgery, and 30 days after surgery

Have a follow-up visit or phone call 30 days after leaving the hospital

This study includes 300 adults aged 18 to 80 years who are scheduled to have laparoscopic surgery for stomach cancer at 13 hospitals in Shandong Province, China.

Studieoversikt

Detaljert beskrivelse

This study is a prospective, multicenter, three-arm, parallel-group, randomized, sham-controlled trial conducted at 13 tertiary hospitals in Shandong Province, China. A total of 300 eligible participants scheduled for laparoscopic radical gastrectomy for stage I-III gastric cancer will be enrolled and randomly assigned in a 1:1:1 ratio to one of three groups: Peri-TEAS (transcutaneous electrical acupoint stimulation administered before, during, and after surgery), Post-TEAS (sham treatment before and during surgery, with real TEAS after surgery), or Sham-TEAS (sham treatment at all time points). Randomization will be performed using a centralized system with stratification by study center and a randomized block design with randomly assigned block sizes. Allocation concealment is ensured by the system, with group assignments revealed only after participant enrollment.

TEAS is delivered using a standardized electroacupuncture device (SDZ-V, Suzhou Medical Products Factory) with a dense-disperse wave (2 Hz alternating with 100 Hz, 5s/10s duty cycle) at individually titrated intensities. Four bilateral acupoints are selected: Hegu (LI4), Neiguan (PC6), Zusanli (ST36), and Shangjuxu (ST37), following WHO standard acupoint locations. For the Peri-TEAS group, stimulation begins 30 minutes before anesthesia induction at the individually determined maximal tolerable threshold, continues throughout surgery at the same intensity, and resumes postoperatively for 30 minutes daily on postoperative days 1 through 3. For the Post-TEAS group, sham stimulation is applied before and during surgery, with real TEAS administered postoperatively using the same protocol as the Peri-TEAS group. The Sham-TEAS group receives sham stimulation at all time points. To maintain blinding, the device screen is shielded, and operators use standardized scripts to avoid unblinding.

All participants receive a standardized enhanced recovery after surgery (ERAS) protocol, including no bowel preparation, preoperative carbohydrate loading, minimally invasive incisions, goal-directed fluid therapy, no routine nasogastric tubes, early removal of drains and urinary catheters (within 24 hours), early mobilization, and a stepwise enteral nutrition plan. Postoperative analgesia is provided via patient-controlled intravenous analgesia (PCIA) with sufentanil (2 μg/kg in 100 mL normal saline, background infusion 2 mL/h, bolus 2 mL, lockout 15 min), supplemented with flurbiprofen axetil 50 mg twice daily. Rescue analgesia (morphine 2-4 mg IV or equivalent) is administered for breakthrough pain (NRS ≥ 4), with all rescue doses converted to morphine equivalent dose for analysis.

The primary endpoint is time to first flatus after surgery. Key secondary endpoints include the area under the curve of movement-evoked pain NRS scores over 0-72 hours and total rescue analgesic consumption in morphine equivalent dose. Additional secondary endpoints encompass gastrointestinal recovery parameters (time to first bowel movement, tolerance of liquid/semi-liquid/solid diets), pain and analgesic use (resting pain AUC, time to first PCIA press, total PCIA presses, intraoperative propofol and remifentanil dosages), ambulation and recovery (time to first independent ambulation ≥5 meters, postoperative hospital stay meeting uniform discharge criteria), and safety outcomes (incidence and severity of nausea, vomiting, abdominal distension, postoperative complications graded by Clavien-Dindo classification, and 30-day readmission rate). Patient-reported outcomes are assessed using the EORTC QLQ-C30 and QLQ-STO22 questionnaires, and perioperative fatigue is evaluated using the ICFS-10, all administered preoperatively, on postoperative day 4, and at 30 days after surgery. Exploratory endpoints include inflammatory cytokines (CRP, IL-6, IL-1β, TNF-α), gastrointestinal hormones (motilin, gastrin, substance P, VIP, cholecystokinin), and immunoglobulins (IgA, IgG, IgM) measured from fasting blood samples on postoperative days 1, 3, and 5 (or at discharge if earlier).

Blinding is implemented for participants, surgeons, anesthesiologists, outcome assessors, and statisticians. TEAS operators are not blinded but are strictly prohibited from participating in any post-treatment clinical assessments or data collection. The success of blinding will be evaluated using Bang's Blinding Index. An independent Data Monitoring Committee, composed of one statistician and two external experts, will regularly review safety and compliance data.

Sample size calculation: Based on pilot data showing a mean difference of 8.22 hours in time to first flatus between Peri-TEAS and Post-TEAS (SD 18.36) and 15.35 hours between Peri-TEAS and Sham-TEAS (SD 25.74), with α = 0.05 (two-sided) and power = 80%, 80 participants per group are required. Accounting for a 20% dropout rate, the target enrollment is 300 participants (100 per group).

The statistical analysis will follow a fixed-sequence testing procedure to control the overall type I error at α = 0.05. Analyses will be performed on the full analysis set (intention-to-treat principle), with per-protocol analysis for sensitivity. All tests will be two-sided, with statistical significance set at P < 0.05, using SAS 9.4.

The study protocol and informed consent form have been approved by the Ethics Committee of the Affiliated Hospital of Qingdao University and each participating center. The results will be disseminated through peer-reviewed academic journals.

Studietype

Intervensjonell

Registrering (Antatt)

300

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

    • Shandong
      • Dongying, Shandong, Kina, 257091
        • Dongying People's Hospital
        • Ta kontakt med:
          • Hao Wang
      • Qingdao, Shandong, Kina, 266000
        • Qingdao Municipal Hospital
        • Ta kontakt med:
          • Hong Qi, MD
      • Qingdao, Shandong, Kina, 266000
        • Department of Gastrointestinal Surgery, Qingdao University Affiliated Hospital
        • Ta kontakt med:
      • Qingdao, Shandong, Kina, 266041
        • The Third People's Hospital of Qingdao
        • Ta kontakt med:
          • Xiaolei Liu
      • Qingdao, Shandong, Kina, 266042
        • Qingdao Central Hospital, University of Health and Rehabilitation Sciences
        • Ta kontakt med:
          • Zhiwei Wang
      • Qingdao, Shandong, Kina, 266109
        • Peking University People's Hospital Qingdao
        • Ta kontakt med:
          • Deju Wang
      • Qingdao, Shandong, Kina, 266109
        • Qingdao Chengyang District People's Hospital
        • Ta kontakt med:
          • Baolian Song
      • Qingdao, Shandong, Kina, 266200
        • The People's Hospital of Jimo, Qingdao
        • Ta kontakt med:
          • Hongbo Wang
      • Rizhao, Shandong, Kina, 276826
        • The People's Hospital of Rizhao
        • Ta kontakt med:
          • Yang Yu
      • Weifang, Shandong, Kina, 261041
        • Weifang People's Hospital
        • Ta kontakt med:
          • Jianjun Qu
      • Weihai, Shandong, Kina, 264400
        • Weihai Central Hospital
        • Ta kontakt med:
          • Xinjian Wang
      • Weihai, Shandong, Kina, 264200
        • Weihai Municipal Hospital
        • Ta kontakt med:
          • Shaowei Sun
      • Yantai, Shandong, Kina, 264000
        • Yantai YuHuangDing Hospital
        • Ta kontakt med:
          • Jinchen Hu

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Age 18 to 80 years, both sexes
  • Endoscopically and radiographically confirmed resectable stage I-III gastric cancer (AJCC 8th edition)
  • Scheduled to undergo laparoscopic radical gastrectomy
  • Willing to sign the informed consent form and able to comply with all study procedures

Exclusion Criteria:

  • American Society of Anesthesiologists (ASA) physical status ≥ IV
  • Clinical stage IV gastric cancer
  • Severe hepatic, renal, cardiovascular, or cerebrovascular diseases, or uncontrolled psychiatric disorders that may affect compliance or safety assessment
  • Participation in another clinical trial or receipt of any form of acupoint stimulation (acupuncture, electroacupuncture, TEAS, etc.) within 1 month prior to enrollment
  • Continuous use of opioids for more than 3 months prior to enrollment, with a daily dose ≥ 30 mg oral morphine equivalent
  • Implanted cardiac pacemaker or other electronic stimulation device, or skin infection/lesion at the stimulation site
  • Pregnancy or lactation
  • Emergency surgery due to bleeding, perforation, obstruction, etc.
  • Planned epidural anesthesia for the surgery

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Peri-TEAS Group
Participants receive active transcutaneous electrical acupoint stimulation (TEAS) before, during, and after surgery. Stimulation begins 30 minutes before anesthesia induction, continues throughout the surgery, and is repeated for 30 minutes daily on postoperative days 1 through 3.
Transcutaneous electrical acupoint stimulation (TEAS) using the Hwato SDZ-V electronic acupuncture device (Suzhou Medical Appliance Factory Co., Ltd., China). Four bilateral acupoints are stimulated: Hegu (LI4), Neiguan (PC6), Zusanli (ST36), and Shangjuxu (ST37), following WHO standard locations. Stimulation parameters: dense-disperse wave (2 Hz alternating with 100 Hz, 5s/10s duty cycle, pulse width 0.2 ms ± 30%). Intensity is individually titrated to the maximal tolerable threshold using a dual-threshold calibration method.
Eksperimentell: Post-TEAS Group
Participants receive sham (inactive) TEAS before and during surgery, and active TEAS after surgery. Postoperative stimulation is given for 30 minutes daily on postoperative days 1 through 3.
Transcutaneous electrical acupoint stimulation (TEAS) using the Hwato SDZ-V electronic acupuncture device (Suzhou Medical Appliance Factory Co., Ltd., China). Four bilateral acupoints are stimulated: Hegu (LI4), Neiguan (PC6), Zusanli (ST36), and Shangjuxu (ST37), following WHO standard locations. Stimulation parameters: dense-disperse wave (2 Hz alternating with 100 Hz, 5s/10s duty cycle, pulse width 0.2 ms ± 30%). Intensity is individually titrated to the maximal tolerable threshold using a dual-threshold calibration method.
Sham-komparator: Sham-TEAS Group
Participants receive sham (inactive) TEAS at all time points: before surgery, during surgery, and after surgery (postoperative days 1 through 3, 30 minutes daily).
Sham TEAS using the same Hwato SDZ-V device with identical appearance, indicator lights, and audible signals. The output leads are internally disconnected to deliver no electrical current. The operator performs the same procedural steps, including simulated dial adjustments, to maintain participant blinding.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Time to First Flatus After Surgery
Tidsramme: Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time from the end of surgery to the patient's first self-reported passage of flatus. Patients and their families are instructed to record the exact time (to the nearest minute) immediately upon first flatus using a postoperative recovery diary card. Bedside nurses verify and collect the diary cards three times daily during rounds. Bowel movements induced by glycerin suppository or enema are excluded.
Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Area Under the Curve of Movement-Evoked Pain NRS Scores Over 0-72 Hours
Tidsramme: 0 to 72 hours postoperatively
Area under the curve (AUC) of Numerical Rating Scale (NRS) scores for movement-evoked pain (MEP) from 0 to 72 hours postoperatively. NRS is a 11-point scale (0 = no pain, 10 = worst possible pain). Pain is assessed immediately after coughing using standardized instructions ("Please hold your wound with one hand, take a deep breath, and cough forcefully") at 6, 12, 24, 48, and 72 hours after surgery by a blinded assessor. If the patient cannot perform a standard cough, pain during turning in bed is assessed as a替代, with the reason recorded in the CRF. AUC is calculated using the trapezoidal rule. Pain during turning and ambulation are recorded simultaneously as exploratory analyses.
0 to 72 hours postoperatively
Total Rescue Analgesic Consumption in Morphine Equivalent Dose
Tidsramme: From PACU admission (T0) until PCIA discontinuation (expected up to 72 hours postoperatively)
Total dose of all rescue analgesic medications administered for breakthrough pain (NRS ≥ 4) from PACU admission (T0) until discontinuation of PCIA and transition to oral analgesia, converted to morphine equivalent dose (mg MEDD) according to standard conversion factors: IV morphine 1 mg = 1 mg MEDD; IV hydromorphone 0.2 mg = 1 mg MEDD; IV tramadol 10 mg = 1 mg MEDD; oral oxycodone 1 mg = 1.5 mg MEDD. The date, time, and dose of each administration are captured concurrently from nursing medication records and the CRF.
From PACU admission (T0) until PCIA discontinuation (expected up to 72 hours postoperatively)
Time to First Bowel Movement
Tidsramme: Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time from the end of surgery to the first bowel movement, excluding those induced by glycerin suppository or enema.
Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time to First Tolerance of Liquid Diet
Tidsramme: Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time from the end of surgery to first tolerance of a liquid diet, defined as the absence of vomiting or severe abdominal distension within 2 hours after ingestion.
Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time to First Tolerance of Semi-Liquid Diet
Tidsramme: Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time from the end of surgery to first tolerance of a semi-liquid diet, defined as the absence of vomiting or severe abdominal distension within 2 hours after ingestion.
Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time to First Tolerance of Solid Diet
Tidsramme: Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time from the end of surgery to first tolerance of a solid diet, defined as the absence of vomiting or severe abdominal distension within 2 hours after ingestion.
Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Area Under the Curve of Resting Pain NRS Scores Over 0-72 Hours
Tidsramme: 0 to 72 hours postoperatively
Area under the curve (AUC) of Numerical Rating Scale (NRS) scores for resting pain (PAR, Pain at Rest) from 0 to 72 hours postoperatively. NRS is a 11-point scale (0 = no pain, 10 = worst possible pain). Assessed by a blinded assessor at 6, 12, 24, 48, and 72 hours after surgery. AUC is calculated using the trapezoidal rule.
0 to 72 hours postoperatively
Time to First PCIA Pump Press
Tidsramme: Measured from the end of surgery up to 48 hours postoperatively
Time from the end of surgery to the patient's first postoperative patient-controlled intravenous analgesia (PCIA) pump activation.
Measured from the end of surgery up to 48 hours postoperatively
Total Number of PCIA Pump Presses Within 48 Hours Postoperatively
Tidsramme: 0 to 48 hours postoperatively
Total number of patient-controlled intravenous analgesia (PCIA) pump presses (both effective and ineffective attempts) within the first 48 hours after surgery.
0 to 48 hours postoperatively
Intraoperative Propofol Dosage
Tidsramme: During surgery (intraoperative)
Total intraoperative propofol dosage (mg) administered during surgery, recorded by the anesthesiologist.
During surgery (intraoperative)
Intraoperative Remifentanil Dosage
Tidsramme: During surgery (intraoperative)
Total intraoperative remifentanil dosage (μg) administered during surgery, recorded by the anesthesiologist.
During surgery (intraoperative)
Time to First Independent Ambulation of ≥5 Meters
Tidsramme: Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Time from the end of surgery to the patient's first independent ambulation of at least 5 meters.
Measured from the end of surgery up to hospital discharge (expected up to 7 days postoperatively)
Postoperative Hospital Stay
Tidsramme: From the end of surgery to hospital discharge (expected up to 7 days postoperatively)
Duration of postoperative hospital stay (hours), defined as meeting the uniform discharge criteria: tolerance of oral analgesia, tolerance of a semi-liquid diet, passage of flatus, and absence of uncontrolled complications.
From the end of surgery to hospital discharge (expected up to 7 days postoperatively)
Incidence and Severity of Postoperative Nausea
Tidsramme: 0 to 72 hours postoperatively
Incidence of postoperative nausea. Severity is assessed using the Numerical Rating Scale (NRS, 0 = no nausea, 10 = most severe nausea).
0 to 72 hours postoperatively
Incidence and Number of Episodes of Postoperative Vomiting
Tidsramme: 0 to 72 hours postoperatively
Incidence and number of episodes of postoperative vomiting.
0 to 72 hours postoperatively
Rate of Rescue Antiemetic Use
Tidsramme: 0 to 72 hours postoperatively
Rate of postoperative rescue antiemetic administration.
0 to 72 hours postoperatively
Incidence and Severity of Abdominal Distension
Tidsramme: 0 to 72 hours postoperatively
Incidence of postoperative abdominal distension. Severity is assessed using the Numerical Rating Scale (NRS, 0 = no distension, 10 = most severe distension).
0 to 72 hours postoperatively
Incidence of Postoperative Complications
Tidsramme: From the end of surgery up to 30 days post-discharge
Incidence of postoperative complications, graded by the Clavien-Dindo classification.
From the end of surgery up to 30 days post-discharge
30-Day Readmission Rate
Tidsramme: 30 days after discharge
Rate of hospital readmission within 30 days after discharge.
30 days after discharge
Quality of Life - EORTC QLQ-C30
Tidsramme: Preoperatively, on postoperative day 4, and at 30 days after surgery
Health-related quality of life assessed using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30). The questionnaire assesses 15 dimensions of HRQoL, including physical, psychological, and social functions.
Preoperatively, on postoperative day 4, and at 30 days after surgery
Quality of Life - EORTC QLQ-STO22
Tidsramme: Preoperatively, on postoperative day 4, and at 30 days after surgery
Gastric cancer-specific quality of life assessed using the EORTC Quality of Life Questionnaire - Stomach Cancer Module (EORTC QLQ-STO22). The questionnaire includes five multi-item scales (dysphagia, pain, reflux, eating restrictions, anxiety) and four single items (dry mouth, body image, taste problems, hair loss). Higher scores indicate more severe symptoms.
Preoperatively, on postoperative day 4, and at 30 days after surgery
Perioperative Fatigue - ICFS-10
Tidsramme: Preoperatively, on postoperative day 4, and at 30 days after surgery
Perioperative fatigue assessed using the Identity-Consequence Fatigue Scale-10 (ICFS-10). The scale contains 10 items; a total score > 24 indicates postoperative fatigue syndrome (POF).
Preoperatively, on postoperative day 4, and at 30 days after surgery

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Inflammatory Cytokines - CRP, IL-6, IL-1β, TNF-α
Tidsramme: Postoperative days 1, 3, and 5 (or at discharge if earlier)
Serum levels of inflammatory cytokines, including C-reactive protein (CRP), interleukin-6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α), measured from fasting blood samples to investigate whether TEAS exerts its effects through inhibition of systemic inflammation.
Postoperative days 1, 3, and 5 (or at discharge if earlier)
Gastrointestinal Hormones - Motilin, Gastrin, Substance P, VIP, CCK
Tidsramme: Postoperative days 1, 3, and 5 (or at discharge if earlier)
Serum levels of gastrointestinal hormones, including motilin (MTL), gastrin (GAS), substance P (SP), vasoactive intestinal peptide (VIP), and cholecystokinin (CCK), measured from fasting blood samples.
Postoperative days 1, 3, and 5 (or at discharge if earlier)
Immunoglobulins - IgA, IgG, IgM
Tidsramme: Postoperative days 1, 3, and 5 (or at discharge if earlier)
Serum levels of immunoglobulins, including IgA, IgG, and IgM, measured from fasting blood samples to explore whether TEAS attenuates postoperative immunosuppression.
Postoperative days 1, 3, and 5 (or at discharge if earlier)

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Studiestol: Yanbing Zhou, The Affiliated Hospital of Qingdao University

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. juli 2026

Primær fullføring (Antatt)

1. juli 2028

Studiet fullført (Antatt)

1. august 2028

Datoer for studieregistrering

Først innsendt

15. juli 2026

Først innsendt som oppfylte QC-kriteriene

15. juli 2026

Først lagt ut (Faktiske)

20. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

21. juli 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

19. juli 2026

Sist bekreftet

1. juli 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

No plan for sharing individual participant data has been established for this investigator-initiated trial.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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